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v Feb. 28, 1950
2,499,271
V. P. HARVEY ET AL
AMMUNITION FEEDING DEVICE FOR ORDNANCE
Filed May 15, 1945
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AMMUNITION FEEDING DEVICE FOR ORDNANCE
Filed May 15, 1945
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AMMUNITION FEEDING DEVICE FOR ORDNANCE
Filed May 15, 1945
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Patented Feb. 28, 1950
2,499,271
UNITED STATES- PATENT" OFFICE
£499,211
AMMUNITION-"FEEDING DEVICE
FOR: ORDNANCE
Valentine Pearce Harvey, Gordon Franc-is Well;
ington Powell, and William Wood, Deptford;
London, England, assignors to- Molins cMachine
GompanmLimited, London, England
~ Application May 15;, 1945, Serial no. 593,834;
Great Britain February 7; 13344,
I
'19. Claims. (01489-533)
. In
.
This invention concerns improvements in or
relating to ammunition feeding devices for ord
2;
-
ated by means controlled by-the movements ofthe
loading} tray. The loading tray- may be coupled
tothe pusher by» a telescopic‘ lever embodying a
spring, the pusher being held against movement
nance and relates more particularly to a device
for supplying, ammunition to a land gun which is
required to maintain a rapid rate of ?re for a
by a catch until the loading tray has moved over
nearly( to the ?ringpo’sition, during which move
comparatively brief period.
An anti-aircraft gun ior example, may be re
ment the spring is stressed, whereupon the catch
quired to ?re twenty or thirty rounds in quick
is tripped by» the moving loading tray and the
succession during an action, and where these
energy: stored in‘ the spring causes the pusher to.
‘
rounds are of large calibre the task of_ maintain 10 operate.
ing a supply of rounds to the gun is extremelyeX
‘The magazine may be carried by a framework
hausting to the crew,, and on a 4,5 inch quick
attached to one of the side frames which support
the gun- trunnions for" movement with the gun- in
?ring gun for example is actually beyond their
strength. As the guns in question often have
azimuth‘, the framework being partly supported
automatic equipment for fuze-setting‘, ramming 15 by wheels or‘ rollers running a guide track fixed
and ?ring, this can only operate at its maximum
on the ground. The framework may be supported
e?'lci‘ency if‘ an adequate supply of rounds is'forth
on a platform attached to one ofsaid' side frames
coming.
and rotatable with the gun in azimuth.
According, to the invention there is provided‘ an
The transfer device may comprise clips adapted
ammunition feeding device for a gun having a 20 to support and retain a round and means for
loading tray movablein a cycle from a ?ring posi- '
rotating said clips when the device reaches the
tion to a‘ loading position and back- to a ?ring
waiting- tray to remove the round’ from they device
position, comprising a magazine for rounds, a
and deliver it. to the waiting tray, and devices
delivery position to which rounds in the magazine
for positively» holding the clips in position after
are fed and which is stationary relative to the 25 rotary movement in either direction and means
gun mounting, feeding means (e. g. an endless
for tripping said devices in timed’ relationship
conveyor) to feed a round automatically to the - with 'themovements of the transfer device and
delivery position for each cycle of movement of
restoring» the clips- vto their previous position for
the loading tray, a waiting tray mounted to move
the purpose described.
with the gun cradle, a transfer device mounted 30 The feeding means for the rounds and transrer
to swing about the trunnion axis of; the gun and
device may bev driven by; electric motors and the
feeding means _may' be intermittently ‘operated,
adapted to engage a round at the delivery posi
tion and’ actuated automatically in timed rela
switches ‘being provided to start and stop the
motors in timed relationship with the movements
tionship with the movement of the loading tray
to transferthe round to thevwaiting tray, and 35 of the loading tray.
means adapted‘ to move, a round from the wait
' The‘ invention will be more fully described'with
ing tray to the loading tray when thelatter is in
the ?ring position.
reference '.'to ' the accompanying drawings} in
whic'h—-
'
j
'
I
v The transfer device may be adapted to beauto
Figure _1 is a, side elevation of; a conveyor and
matically actuated to transfer a round from'the 4.0 also shows its location relatively to the. gun trun
delivery position to the Waiting tray as the load
nions audits. pivot contra
.
ing tray moves into the loading position, means
movable with the gun cradle being adapted to
cooperate with a part movable with the trans
fer device automatically to stop the transfer de 45
vice at the appropriate. angle, and means being
provided automatically to return the transfer de
vice to the. delivery position after it; has delivered
a round to the'waiting tray.
,
. Figure. .2 is. an end elevation of. Figure l
.Eig-ure, 3. is aplan-of a bottom clip.
Figure- ‘iis an, elevation or Figure 3.
Figure 5. is a. side elevation of Figure 4.
Figure 6 is a section of Figure 3 on the. line
Figure '7 is ashlan view-"of a modi?cation where
The ammunition feeding device may comprise 50 the conveyor is supported on a platform which
rotates with the gun.
control-means. for keeping a round in position on
‘Figure ‘8 isf'a side elevation, of Figure. '7- and
the Waiting tray, a pusher adapted to push said
round into the loading tray and'mean'sforreleas- a ‘
shows diagrammatically thehgun and loadinggtray.
lug, said control-means when the round is to be
_ Figure
delivered to the tray- The pusher may be actu
55
plan of‘ the delivery end cit-‘the
conveyor drawn-to a‘l‘arger scale.
2,499,271
Figure 10 shows a section of the gear box of the
conveyor drive.
Figure 11 is a detail of Figure 10.
Figure 12 is an elevation of a transfer arm and
these sprocket wheels there are mounted two end
less conveyor chains I2 and I3 provided at spaced
intervals with clips or pockets adapted to em
brace parts of the body of a round and described
in more detail below. Thus when the conveyor
is loaded it supports a number (e. g. 30) rounds R,
each round standing vertically with its nose up
part of the side frame of the gun.
Figure 13 is a side elevation of the arm shown
in Figure 12.
Figure 14 is a plan view of the lower part of
Figure 12.
Figure 14A illustrates the form of cam which
wards.
. semi-circular form with slightly out-turned free
ends and the lower clip [5 is of substantially the
same shape but is provided with a ?at support
plate [6 on which the base of a round may rest.
A clip 15 is shown in detail in Figures 3, 4, 5 and
6. The underside of the support-plate it has a
Figure 15 is an elevation of mechanism for
transferring a round from the transfer arm to the
loading tray.
Figure 16 is a wiring diagram showing the con
nections and controls for motors which operate .
roller I‘! mounted on it and beneath the conveyor
track there is ?xed a guide rail l8 on which all
transfer arm and conveyor respectively;
Figure 17 illustrates diagrammatically the in?“
ter-relation of the waiting tray,‘ the loading tray
.
I
-
e
'
The upper clip M of a pair is of substantially
may be used to operate the clip positioning lever.
and the gun structure.
4
is the driving shaft, has sprocket wheels II. On
of these rollers run, to afford support for the
weight of the rounds. The support plate I 6 is
cut away or recessed as shown at [9, Figure 3, to,
H
- Like reference numerals refer to like parts
avoid the possibility of accidentally striking the
throughout the speci?cation and the drawings;
A 4.5 inch quick ?ring anti-aircraft gun for '
which the designs illustrated are suitable is pro
vided with a loading tray and a support or shelf ‘:15.
(herein and in the appended claims called a.
percussion cap of a round and all other parts of
thedevice which engage the base of a round are
similarly treated.
In order to keep the conveyor as short as pos
sible, one pair of clips slightly overlaps the next
pair, the out-turned free ends being alternately
arranged at different levels from the ground.
This will be better understood from Figure 5
where it will be seen that the right-hand out
turned end ISA is higher than the left-hand out
turned end 153. This arrangement enables the
“waiting tray”) on which a round is placed and _
from which it is moved into the loading tray while
the loading tray is in the ?ring position, the load- .-,
ing tray being thereafter swung to bring the .
round into alignment with the breech (the load
ing position) whereupon the round is rammed
and the gun is ?red when the loading trayivhas
rounds to be held on the conveyor very close to
returned to the ?ring position. In up-to-date
guns of this kind all the operations except for 35 gether and yet avoids any interference between
one pair of clips and the next at the position
the actual lifting of the round to deliver it to the
where the rounds are removed from the clips
loading tray are performed automatically by
power driven devices, and a fuze-setting device
is included.
when a pair begin to move in an arcuate path at
, .. the end of a conveyor run as will be better un
1
Referring to the drawings, the invention will 40 derstood later. During the movement of the
rounds along the conveyor they are guided by a
be broadly described with reference to Figures 1
guide 33, attached to the frame I, which engages
and 2, whereafter the remaining views which
the
necks of the cartridge cases.
show various details, modi?cations and more fully
The framework I is located between the two
developed devices according to the invention will . ‘Y
runs of a conveyor chain, as shown in Figure 2,
be described.
so‘that the clips or pockets of the conveyors ex
The ‘ammunition feeding device comprises a
tend outwardly on each side of the framework
substantial framework indicated generally by the
and both runs of the conveyor may be loaded
reference I, which projects outwardly from the
side frame 4 of the gun on the loading tray side
so that it is parallel to a radial line drawn from
the centre on the line C—G on which the gun.
swings in traversing and its centre line C-C is.
about nine inches behind this line, that'is'to
wards the rear of the gun.
with rounds. In practice, all the clips are loaded
it
but in certain cases two near to a seat 20 for one
. member of the gun crew, where such seat is pro
, vided, are left empty, as if these two were loaded
the rounds would inconvenience the man in pass
The location ofthe - -,
ing.
.
-
device relatively to the gun will be bettenun-v 55 , i.‘ Surrounding the framework and conveyor sys
tem is a broad foot, rail or platform 2| which
derstood from Figure 7. At the outer end, ‘the
forms a guide for the lower part of a round as it
framework is provided with two wheels v2 which
travel on a circular .rail track 3 arranged concen
trically about the said centre.
may not be truly horizontal due either to incor
rect installation or to sinking of its foundation
travels with the conveyor and which is attached
to the framework, and a guard member 22 is sim
60 ilarly arranged above the framework to overhang
the noses of the rounds and prevent them from
falling out of the open clips. Rounds are loaded
into the clips by being canted inwards to enable
~ -, the noses to clear the guard and then lifted on
65 to the foot rail. The loader then lifts a round by
its base and drops the latter on the support plate
10f a lower clip which is at a lower level than the
foot rail, see Figure 2, or he may shift the round
- ‘ from the rail to the support plate by a vigorous
70 push or kick. The whole, or a part of the con
veyor is loaded before the gun is required for
action, but if necessary it may be fed whilst it is
As such a track : I
during the course of time, the inner end of the
framework is connected to the gun frame 4 by a
pivot 5 which permits the framework to rise and
fall to accommodate itself to any irregularity in
'the rail track as the gun and framework rotate,
although the framework is constrained to main
tain its substantially ‘radial disposition with re
spect to the vertical centre of rotation on the
line C—G of the gun.
At positions near the ends of the framework,
bearings 6 and ‘I are provided in which are jour
-n'alled two vertical shafts 8 and 9 each of which
is provided with two sprocket wheels.~ The shaft . ..
,running.
At the .end
of the framework near to the, gun
_
8 has sprocket wheels I!) and the shaft 9, which 75 trunnion there is provided a transfer member.
2:49am
5
This consists of‘ an arm- orilever 2x3 pivoted on the
trunnion 241 and capable of movementv from‘ 1a
position substantially in alignment with a ver
tical line drawn through the trunnion centre
C;—'l-‘, through an‘ angle of up to 90-“, to cover all
elevations from, for example; 15°’ upwards. The
arm is provided with a gear quadrant 25- at its
hub and- a pinion 2d driven‘ by an electric‘ motor
rangement: is: mounted on a quadrant-shaped
platform: 3t‘. fixed- to the gun frame.- dtand rotat~
able therewith: about the pivot axisG-P which
is at the middle of’ the. gun base; plate 410-. The
framework is stiffened by beams such as 37!: which
are connected at suitable points-by plates. 38.. In
this case the roli'ers. 2. which run on. the. raili'3
are ?xed beneath the platform. A guard39511.1?-v
21‘ is adapted. to engage the quadrant and» rotate
rounds the base of the. conveyor and. its upper
the arm through the angle required? at such ‘time 10 surface is constructed to function as: the: ?ootrail
as a- round is to be transferred. 1
'
21 and? bears the same reierence. The platform
comprises two vertical walls 41‘ to de?ne a space
a round into engagement therewith and» deliver~
or chute 42 through which the spent. cases pass
ing the‘ round to the gun are described‘ more fully
as they‘ are discharged from the. gun.. The. shape
later‘ on but the fol-lowing description‘ relating to 15 of this chute is more clearly shown. in Figure.-..8..
Figures It and‘ 2 is su-?icient for understanding
m Figure 7' there is. also shown‘ the; guide previ
the general nature and operation of‘ the arm and
ously referred to ‘which. urges the rounds out: of
devices.
the clips as they‘ approach. the transfer point.
At a position near to the? end of the conveyor
guide is: shown as. a heavy line. marked 60
run- on the transfer side ofthe conveyor, that is 2.0 but is more clearly-shown in Figure 9'. The: chain
the side furthest- from the- trunnion or the right
conveyor is shown in heavy dot and dash lines
hand side in Figure 2, there is provided‘ a ?xed
‘and the path of the centres of the conveyor clips
support plate 28 whose upper surface is slightly
as a light dot'and dash line.
below ('e. g; %"') the level‘ of the support plates
Reterringto Figured, this view shows diagram;
of the lower clips of the- conveyor andias- a round 25 matically the gun barrel t3 and the loading tray
approaches this position it is urged out: of ‘the
12. As explained in detail with reference. to Eige
clips by a guide (‘not- shown in- Figures 1' and 2-.)
ures 121 to l5, the round‘is delivered on to awaitr
as the clips begin to move in a semi-circular path
i-ng tray from which it is: rolled into the» loading
about the axis of the neighbouring conveyor
tray. - A switch is ?xed on the waiting: tray where:
shaft 9. The movement is such that: the round 30 bytheupwardi movement of the arm 23.’ is limited '
comes to rest‘ with about-half of its base-resting
as will be better understood when the electrical
on the ?xed support, the other half overhanging
connections are described with reference to Fig:
the: edge, see Figure 11. Su-itabIe?xedl guides such
ure 1-6.
1
‘
as an extension Hi3r of the guide 33 may be pro
Figure 9 shows to a larger scale the inner end
vided to steady the round‘ in this: position.
of the conveyor and how the rounds are: de?ected
The transfer arm is also providedv with a. sup.
from the conveyor path. The bearing 1. of shaft
port face 25 at‘ its free- end’ and as the arm moves
9 extends as abracket Hi i; which supports a; plate
forward to‘ the round-engaging‘ position, the sup»
M2‘ having
inner edge curved to. an arc struck
port moves into- alignment with the fixed’ support,
on the centre. of the shaft 9; The shape. of the
and thus beneath- the exposed half‘ of- the base 40 guide so is clear in this view and it: is supported
of the round‘. Along the length of the arm: there
at a level sufficiently high above the. base of the
are disposed two‘ semi~circular movable clips. or
rounds R to contact with a part cat the tapering
carriers 301 and two ?xed clips 31 and when the
cartridge case of the diameter of the. chain line
base of the round: is engagedby the rearvvardiy
circle marked “33-. A guard its. which inef?ect
moving arm‘ the round falls towardsathe arm and
continues the guard rail 2! is ?tted. outside the
I The transfer arm‘ and the devices for moving
is caught and held securely‘ by the clips and sup
port face.
The clips 3!! are pivoted to the transfer arm
23, and arms 32‘ on the clips 30' extending beyond
the pivots are'adapted? to strike against abut~ .
ments of any suitable kind mounted on. the gun
in the neighbourhood; of the loading'tray. As: the
arms 32 engage the abutments the clips will r0—
tate about the pivots and turn the round over
so that it can roll into the waiting tray; The
movemcntioi the round to. the loading tray is. as
si'sted by‘ any suitable form of mechanical push
ers as at high elevations the round may not roll
easily by its weight alone. A construction. of this
nature is described later with. referencesto Eis 60
ure
t5’.
-
'
The conveyor chains are driven intermittently
by a- suitable electric. motor started and stopped
by switches.
The arrangement illustrated is found- to. be
satisfactory for the gun in question. An electric
'\ motor 34 drives the conveyor shaft 9: througha
gear box 35' which is constructed as shown in Fig
ure I0 and the motor is controlled as; described
later with reference to Figure 16.
The arrangement shown in Figure '7 ‘repre
sents a more fully developed construction accord
conveyor track and curved as: shown. It will‘ be
clear that as the conveyor moves in the direction
of- the arrow, the rounds engage the guide 60; and
are pressed out: of the conveyor clips. As they
do‘ this their- bases- move more and more on to
the piate I02 until they reach the position on'the
extreme right‘ of theiigure and are overhanging
the plate M12‘ as shown. At this position they~are
ready to be picked up byvv the transfer arm. In
order to facilitate the movement across the plate
M2; the» platev is formed‘ with its upper- face
slightly inclined to the horizontal and rising from
the left-hand side the. plate towards; the right.
As thebases o-i’the rounds travel in a horizontal
plane the contact between ‘base and plate. is
therefore made on a line» on the edge of the rim
of‘ the base and so the rounds tend tov roll along
the plate on the corner or edge of- the rim which
makes the movement easier.
-
Referring to Figures 10 and 11 the gear-box
35 has the m'otortdbolted to its rear face and
the spindle of the motor hasv a. worm 46 fixed
thereon. This engages with a worm wheel 4.‘! to
which is ?xed a gear wheel‘ 418 which constitutes
70 the ?rst gear of the reduction gear train shown
in ‘Figure iii. The last. gear ‘t9 oihthe- train has
thereto a disc it provided with a tooth 5il,
ing- to the invention. The general design of‘ the
which when it ‘has. been moved onepitch bar-the
-’ conveyor is: similar to that. already described with
’ conveyor being driven: by the; motor '34: operates
"reference to Figures I and 2' but-the wholear 75thei1pmngerai2
thussconstitutes aswitcu
2,499,271
7
operating device for stopping the motor 94 in
timed relationship with the transfer arm 23 so
that- the conveyor moves intermittently in timed
relationship with the movements of said arm.
The tooth engages a spring-pressed plunger 52
and the outer end of the plunger operates a switch
53 referred to again in connection with the wiring
diagram Figure 16.
8
shown in the round receiving position and in
proximity to the waiting tray 6| on to which the
transfer arm delivers the rounds. In Figure 15
a portion ofthe loading tray 12 is shown in full
lines in round receiving position and again in
chain lines in its ramming position. As the load
ing tray swings from the chain line to the full line
position, it operates the pusher 99, by the action
of the telescopic link 15 so that the pusher moves
The shaft 54 to which the gear 49 is ?xed
the round along the waiting tray as the loading
has also ?xed thereto one half 55 of an Oldham 10
coupling the other half 56 of which is ?xed to the
conveyor drive shaft 9.
The transfer arm 23 shown in Figures 12 and
tray approaches to receive the round. The wait
ing tray and of course the loading tray are sup
ported on the gun cradle 13 and share its move
ments of elevation and depression. This rela
13 differs in some respects from that previously
tionship may be seen most clearly by reference
described with reference to Figure 2. The arm 15 to Figure 17. Above the loading tray and wait
23 is operated by a motor-driven gear and quad
ing tray there is arranged a box or frame 14
rant as before. The clips 51, 58 and 59, Figures
which carries the mechanical devices for push
12 and 13, which support the round are all mov
ing the round, and this box is also ?xed to the
able in this instance, and all have semicircular
recesses like the clips 59 shown in Figure 14. 20 cradle. A telescoping link 15 described in more
detail later is pivoted to the loading tray and
The lower clips 59, Figures 12 and 13, whose
is shown in the view in the position occupied when
shape is better seen in Figure 14 also comprises
the loading tray swings over to the ramming po
the base support 29. In operation the arm, as
sition. The link is shown broken and continued
seen in Figure 12, moves anti-clockwise to raise
in chain lines to avoid obscuring other parts. The
the round, and as shown has already moved a
other end of the link is pivoted to a lever ‘16 (also
short distance to come into engagement with the
shown
in chain lines) which is ?xed to a shaft
round. Thereafter it moves rearwards and up
‘I1
on
which
a gear wheel 18 is also ?xed. Thus
wards until it reaches a position from which the
as the loading tray oscillates, the gear is twisted
round is delivered on to a waiting tray 6|, Fig
to and fro. The gear engages with the smaller
ure 15, from which it is rolled into the loading I
gear of a compound gear 79 to which is ?xed a
tray as described later with reference to Figure
quadrant-shaped catch plateB? adapted to en
15. The arm 23 strikes a switch 62, Figure 16,
gage at times with a hook or pawl 8| having an
associated with the waiting tray, and the motor
extension lever 82 fixed thereto.
and arm are stopped. But just before the arm
The larger gear of the compound gear 19 drives
comes to a standstill a tappet 63 which consti
a further gear 83 through an idler I19. To the
tutes part of the bottom clip strikes against the
abutment 64, Figure 15, formed on the waiting
tray, and the rod 65 to which all the clips 51, 58
and 59 are ?xed is rotated in its bearings and
the clips are therefore turned over to deliver the
round on to the shelf waiting tray 6|. In order
to reduce shock and provide a smooth and rela~
tively slow action to the movement the tappet
Jand abutment each have two coacting surfaces so
that the movement takes place in two stages.
First the surface 63A of the tappet engages sur
face 64A of the abutment and then surfaces 638
and 54B engage. A consideration of the plan
view, Figure 14, will render this clear.
gear. 83 is attached a cam 84 and a lever 85. The
free end of the lever 85 is pivoted at 86 to a link
81 the other end of which is pivoted to a link 88
pivoted to the box at 89. The link 81 supports
a pusher 99 which is also pivoted at the pivot 86
and the pivot point comprises a torsion spring 9|
whereby the pusher is normally constrained to
move with the link but can bend relatively there
to, anti-clockwise, if sufficient pressure is applied
to overcome the spring 9|.
In operation and by virtue of the mechanism
‘described, the pusher will move behind a round
R at a certain time and urge it down the waiting
tray towards the loading tray and will thereafter
Later the arm moves back to its original or
‘move back to repeat the operation on the next
down position in accordance with the switching
round. During this return movement the pusher
operations hereafter described with reference to
trips‘ over the surface of said round by turning
Figure 16, but by this time a fresh round is wait
‘on the pivot 86 against the in?uence of the
ing to be picked up and it is necessary for the
clips to remain in their turned-over position dur 55 spring 9!.
To retain the round substantially in the posi
ing the downward movement of the arm to avoid
tion shown and prevent it from prematurely roll
striking said fresh round. For this purpose the
ing down the waiting tray, there'is provided a
clip 59 comprises a stop arm 66 which is caught
pivoted stop comprising a three-armed bell crank.
as shown in chain lines in Figure 14 by a spring
catch 61 which is pivoted on the foot or ?at base 60 The arm 92 engages the round as it is deposited on
the waiting tray when the cam follower on arm
of the arm 23. As the arm approaches its ?nal
93 moves down the cam 84 and the arm 95 pro
down position the toe 68 of the catch engages a
vides a further stop a little further down the
cam 69 ?xed on the side of the gun frame 4 and
waiting tray to receive the round as arm 92 rises
releases the stop lever from the catch. As illus
trated in Fig. 14A a lever 10 formed on the clip 65 and releases the round. Later the arm 95 rises
and lets the round move on to the tray as it is
contacts another cam "H at this position and is
rotated thereby to restore all the clips to their
original position ready to engage the aforesaid
fresh round on the next forward and upward
stroke.
ting up the mechanism or for drill or like pur
poses.
The purpose of the catch-plate 89 and the
pawl 8| is to delay the operation of the mecha
nism ‘until such time as the loading tray is near
enough to the full line position shown (i. e. the
?ring
position) to ensurethat it will be in posi
75
The loading tray 12 (full line positionl‘isv
It has been stated that mechanical pushers may
be provided to assist in the transfer of rounds
from the waiting tray to the loading tray. An
arrangement for this purpose is shown in Figure
15.
pressed forward by the pusher. A handle 96 is
provided for manipulating the stops when set
gregari
11
.
ment returns the arm to its original or “down”
position thus allowing switch 62 to close again
and at the end of the movement switch H0 is
This causes bar S to move down and
stops the current to the armature which is then
matically in timed relationship with the move
ment of the loading tray to transfer the round
vfrom the delivery position to the waiting tray
as the loading’ tray moves in to the loading posi
tion, a part movable with said transfer device,
means movable with the gun cradle and cooperat
short-circuited for dynamic breaking the circuit
ing with said part automatically to stop the trans
being; Brush T. B.-block R.-—bar S—-block Q——
fer device at the appropriate angle, means auto
block M-bar N-block L-brush B. B.
matically to return the transfer device to the
Meanwhile the movement of the tray motor has
delivery position after it has delivered a round to
10
been sufficient to rotate the timing drum H4
the-waiting tray, and means for moving a round
so far that the contacts 219 and I20 thereof are
from the waiting tray to the loading tray when
closed by the segment 214 long enough to en
the latter is in the ?ring position.
ergize the coil of the relay Ill and start the
3-. An {ammunition feeding device for a gun
conveyor motor 34 the circuit being: Positive
having a loading tray movable in a cycle from a
switch 53 V(closed)--coil Ill-contact lZ?-seg 16 firing position to a loading position andrback to
ment 2l4—-contact 2|9-3l9—-negative.
'
a ‘?ring position, comprising a magazine for
The relay Ill remains energized when the
rounds, a delivery position to which rounds in the
circuit through 2 l 9—2 I4--l 20 is broken by further
magazine are fed and which is stationary relative
drum movement by reason of the circuit through
to the gun mounting, feeding means to feed a
the auxiliary contact bar H8 which has been 20 round automatically to the delivery position for
pulled up by the relay coil and connects the
each cycle of movement of the loading tray, a
lower end of the coil directly to the negative line.
waiting tray mounted to move with the gun
When the conveyor motor has moved the con
cradle, a'transfer device mounted to swing about
veyor a distance equal to the pitch of one con
the trunnion axisyof the gun and connected and
veyor clip the switch 53 is momentarily broken 25 arranged to engage a round at the delivery posi
by the cam 5| as previously described with refer
tion, means to actuate said transfer device auto
ence to Figure 11. Thus the circuit of the relay
matically in timed relationship with the move
III is broken and its contact bar moves down
‘ment of the loading tray to transfer the round to
again and current through the armature of the
the waiting tray, control means for keeping a
motor 34 ceases. Short circuiting of the arma 30 round in position on the waiting tray, means for
ture and dynamic braking take place in exactly
moving a round from the waiting tray to the
the same way as for motor 21 so it appears to be
loading tray when the latter is in the ?ring po
unnecessary to describe these circuits, except to
sition, and means for releasing said control means
say that the motor is arranged to run long enough
when the round is to be delivered to the loading
35
to insure that the switch 5| closes again.
tray.
After ramming has taken place the loading
4. An ammunition feeding device for a gun
tray moves back and reversal of the tray motor
having a loading tray movable in a cycle from a
moves the drum H4 back to the position shown
?ring position to a loading position and back
in the drawing when the apparatus starts again
to _a ?ring position, comprising a magazine for
40 rounds, a delivery position to which rounds in the
to transfer a round to the waiting tray.
What we claim as our invention and desire to
magazine are fed and which is stationary rela
secure by Letters Patent is:
tive to the gun mounting, feeding means to feed
1. An ammunition feeding device for a gun
‘a-round automatically to the delivery position
having a loading tray movable in a cycle from a
for each cycle of movement of the loading tray, a
?ring position to a loading position and back 45 waiting tray- mounted to move with the gun
to a ?ring position, comprising a magazine for
cradle, a transfer device mounted to swing about
rounds, a delivery position to which rounds in the
the trunnion axis of the gun and connected and
magazine are fed and which is stationary relative
arranged to engage a round at the delivery posi
to the gun mounting, feeding means to feed a
tion,
means to actuate said transfer device auto
round automatically to the delivery position for 50 matically
in timed relationship with the move
each cycle of movement of the loading tray, a
ment of the loading tray to transfer the round
waiting tray mounted to move with the gun
from‘ the delivery position to the waiting tray as
cradle, a transfer device mounted to swing about
the'loading tray moves in to the loading posi
the trunnion axis of the gun and connected and
arranged to engage a round at the delivery posi 55. tion, a part movable with said transfer device,
means movable with the gun cradle and cooperat
tion, means to actuate said transfer device auto
ing with said part automatically to stop the trans
matically in timed relationship with the move
fer device at the appropriate angle, means auto
ment of the loading tray to transfer the round
matically to return the transfer device to the de
to the waiting tray, and means for moving a
round from the waiting tray to the loading tray 60 livery position after it has delivered a round to
the waiting tray, control means for keeping a
when the latter is in the ?ring position.
‘round in position on the waiting tray, means for
2. An ammunition feeding device for a gun
moving a round from the waiting tray to the
having a loading tray movable in a cycle from a
loading tray when the latter is in the firing posi
?ring position to a loading position and back to
a ?ring position, comprising a magazine for 65 tion, and means for releasing said control means
when the round is to be delivered to the loading
rounds, a delivery position to which rounds in the
tray.
magazine are fed and which is stationary relative
5. An ammunition feeding device for a gun hav
to the gun mounting, feeding means to feed a
ing
a loading tray movable in a cycle from a ?r
round automatically to the delivery position, for
opened.
each cycle of movement of the loading tray, a
waiting tray mounted to move with the gun cradle,
a transfer device mounted to swing about the
trunnion axis of the gun and connected and ar
ranged to engage a round at the delivery posi
’ tion, means to actuate said transfer device auto
ing position to a loading position and back to
a ?ring position, comprising av magazine for
rounds, a delivery position to which rounds in
‘the magazine are fed and which is stationary
relative to the gun mounting, feeding means to
feed a round automatically to the delivery posi~
assign
13
tion ‘for each cycle of movement ‘of the ‘loading
tive ‘to ‘the gun mounting, ‘feeding means to real
tray, a waiting tray mounted to move with the
a round automatically to the delivery ‘position
gun cradle, a transfer device mounted to swing
for each cycle of movement of the loading tray,
about the trunnion axis of the gun and connected
a waiting tray mounted to move with the gun
and arranged to engage a round at the delivery‘ 0 cradle, a transfer device mounted to swing about
position, means to actuate said transfer device
the trunnion axis of the gun and connected and
automatically in timed relationship with the
arranged to engage a round at the ‘delivery posi»
movement of the loading tray to transfer the
tion, means to ‘actuate said-transfer deviceauto
round to the waiting tray, control means ‘for
matically ‘in timed relationship with the move
keeping 'a round in position on the waiting tray, IO ment of the loading tray to transfer the round
a ‘pusher for pushing said round into the loading
from the delivery position to the waiting tray
tray when the latter is in the ?ring position, and
as the loading tray moves in to the loading ‘posi
means for releasing said control means when the
tion, a part movable with said transfer device,
means movable with thegun cradle and cooperat
'6. An ammunition feeding device for a gun hav 15 ing 'with'said part automatically to stop the ‘trans.
ing ‘a loading tray movable in a cycle from a
fer device ‘at the ‘appropriate angle, vmeans auto-i’
?ring position to a loading position and back to
matical'ly to return the transfer device ito‘the rue;
a ?ring position, comprising a magazine for
livery position ‘after it has delivered a round to
rounds, a delivery position to which rounds in
the ‘waiting tray, ‘control means for keeomga
the magazine are fed and which is stationary
round "in position on the waiting tray, means
relative to the ‘gun mounting, feeding means to
actuated by the "movements of ‘the iloadingtray
"feed a round automatically to the delivery vposi
‘to ‘move a round from the waiting tray to the
tion- for each cycle of movement of the loading
loading tray when the latter is in the ?ring posi
tray, a waiting tray mounted to move with the
tion, and means for releasing said control means
gun cradle, a transfer device mounted to swing
when the ‘round is vto ‘be delivered "to the load’
round ‘is to be delivered to the loading tray.
about the trunnion ‘axis of the gun and connected
vand varranged to engage a round ‘at ‘the delivery
position, means to actuate said transfer device
‘automatically in timed relationship with the
movement of the loading tray to transfer the
round from the delivery position to the Waiting
tray as the loading tray moves into the loading
position, a part movable with ‘said transfer de
vice, means movable with the gun cradle ‘and
cooperating with said part automatically to stop
‘the transfer device at the appropriate angle,
means automatically to ‘return the transfer de
vice to the delivery position after it has delivered
'a “round to the waiting tray, ‘control means for
keeping a round in position on the waiting tray,
a pusherfor pushing said round into the loading
tray when the latter is in the ?ring position, and
means for releasing said control means when the
ing tray.
j
,9. An ammunition feeding device 'for a gun
having 'a loading tray ‘movable "in a cycle from a
?ring position vto ‘a loading position and back
to ‘a ?ring vposition, ‘comprising ‘a ‘magazine ‘for
rounds, a delivery position to ‘which vrounds ‘in
the magazine are fed and which is ‘stationary
relative to the gun mounting, feeding means to
‘feed a ‘round automatically to the delivery posie
tion for each cycle of movement of the loading
tray, awaiting tray mounted to move with the
gun cradle, a transfer device ‘mounted to swing
‘about the trunnion ‘axis of the gun and con;
nected and ‘arranged to ‘engage a round ‘at the
delivery position, means to actuate said transfer
device automatically in timed relationship ‘with
the movement of the ‘loading tray to transfer {the
round ‘from ‘the delivery position to the waiting
tray as ‘the loading tray moves into the loading
position, a part movable with ‘said transfer device,
round is to be delivered to the loading tray.
7. An ammunition ‘feeding device for-a‘gun hav 45
ing a loading tray ‘movable in a cycle from a
‘means movable with “the ‘gun cradle and 00‘?ring position to a loading position and back to
operating ‘with Said part automatically to stop
"a ?ring position, comprising a magazine for
the ‘transfer device ‘at ‘the ‘appropriate angle,
rounds, a delivery position to which ‘rounds in the
‘means automatically to return the tran‘s'fer'device
magazine are fed and which is stationary 'rela- '
"to the delivery position "after it ‘has delivered
tive to ‘the ‘gun ‘mounting, feeding means to feed
‘a round to ‘the waiting tray, control means for
‘a :round automatically ‘to the delivery position
keeping a round in position on the waiting tray,
for each cycle of movement of ‘the loading tray,
a pusher for ‘pushing said round into the loading
'a ‘waiting tray mounted to ‘move with the gun_ jtray 'When ‘the latter is win the ‘?ring position, a
cradle, a transfer device ‘mounted to move with‘l‘55 vtelescopic lever embodying ‘a ‘spring and coupling
the gun cradle, a transfer device mounted ‘to
the loading tray to the ‘pusher, a catch to hold
swing about the trunnion axis of the gun and
the pusher against movement ‘until the ‘loading
‘connected and ‘arranged to engage a ‘round at
tray has moved over nearly to vthe ?ring position,
the delivery position, means to actuate said trans-U . ‘whereby the spring ‘is stressed, means operable by‘
‘fer device automatically in timed relations'hip”li0 the movement of the loading'tray to 1trip said
‘with the movement of the loadin'gtray to transfer
catch, ‘whereby vthe “energy ‘stored ‘in the spring
the ‘round to the ‘waiting tray, control means for
causes ‘the jpusher to “operate, and wherebysaid
keeping a round in ‘position on the ‘waiting tray,
means actuated by the movements of the loading? 4
tray to move a round from the waiting 'tray to "'65
‘the loading tray when the latter ‘is in the ?ring
position, and means for releasing said control
means when the round is to be delivered to the
con’trol'means are released.
‘
10. An ‘ammunition feeding device for‘ a gun
having ‘a loading tray ‘movable ina cycle ‘from ‘a
‘firing position to a loading position and ‘back to
~a ?ring position, ‘and having side frames sup
porting the gun trunn‘io'ns "for movement with
loading tray.
‘the 'gun ‘in‘azimuth, comprising 'a framework car
8. An ammunition feeding device‘for a ‘gun havl “to ‘ried by ‘one ‘of said side frames‘, wheels onl‘s‘afid
‘ing a loading tray movable in a cycle from a‘?r
"framework, a guide ‘track ?xed on the ground,
'ing position to a loading position and back to ‘a
said ‘wheels ‘being arranged to run on said guide‘
?ring position, comprising a magazine for rounds,
track ‘for the partial support of "said framework,
a delivery position to which rounds ‘in ‘the . , a magazine for rounds, fsaid magazine being car
magazine are led and which is stationary rela 75 ried "by said ‘framework, a delivery po‘sition‘to
lg
2.49am
which rounds in the magazine‘ are fed and which
is stationary relative to the gun mounting, feed
ing means to feed a round automatically to the
delivery position for each cycle of movement of
the loading tray, a waiting tray mounted to move
with the gun cradle, a transfer device mounted
to swing about the trunnion axis of the gun and
connected and arranged to engage a round at
the delivery position, means to actuate said trans
fer device automatically in timed relationship 1 O
with the movement of the loading tray to transfer
the round to the waiting tray to the loading tray
when the latter is in the ?ring position.
,
11. An ammunition feeding device for a gun
having a loading tray movable in a cycle from a
?ring position to a loading position and back to a
?ring position, and having side frames support
ing the gun trunnions for movement with the gun
in azimuth, comprising a platform attached to
one of said side frames andv rotatable with the gun
ment of the loading tray to transfer the round
from the delivery position to the waiting tray as
the loading tray moves into the loading position,
a part movable with said transfer device, means
movable with the gun cradle and cooperating
with said part automatically to stop the transfer
device at the appropriate angle, means automat
ically to return the transfer device to the delivery
position after it has delivered a round to the wait
ing tray, and means for moving a round from the
waiting tray to the loading tray when the latter
is in the ?ring position.
14. An ammunition feeding device for a gun
having a loading tray movable in a cycle from
a ?ring position to a loading position and back
to a ?ring position, comprising a magazine for
rounds, a delivery position to which rounds in
the magazine are fed and which is stationary
relative to the gun mounting, an endless con
veyor to feed a round automatically to the de
livery position for each cycle of movement of
the loading tray, a waiting tray mounted to move
form, wheels on said framework, a guide track
with the gun cradle, a transfer device mounted
?xed on the ground, said wheels being arranged
to swing about the trunnion axis of the gun and
to run on said guide track for the partial support
connected and arranged to engage a round at the
of said framework, a magazine for rounds, said
delivery position, means to actuate said trans
magazine being carried by said framework, a de
fer device automatically in timed relationship
livery position to which rounds in the magazine
with
the movement of the loading tray to trans
are fed and which is stationary relative to the
fer the round to the waiting tray, control means
gun mounting, feeding means to feed a round
automatically to the delivery position for each 30 for keeping a round in position on the waiting
tray, means for moving a round from the wait
cycle of movement of the loading tray, a waiting
ing tray to the loading tray when the latter is
tray mounted to move with the gun cradle, a
in azimuth, a framework supported by said vplat
transfer device mounted to swing about the trun
nion axis of the gun and connected and arranged
to engage a round at the delivery position, means
to actuate said transfer device automatically in
timed relationship with the movement of the load
ing tray to transfer the round to the waiting
tray, and means for moving a round from the
waiting tray to the loading tray when the latter
is in the ?ring position.
12. An ammunition feeding device for a gun
having a loading tray movable in a cycle from
a ?ring position to a loading position and back
to a ?ring position, comprising a magazine for
rounds, a delivery position to which rounds in the
magazine are fed and which is stationary relative
to the gun mounting, an endless conveyor to feed
a round automatically to the delivery position for 1
in the ?ring position, and means for releasing
said control means when the round is to be de
livered to the loading tray.
15. An ammunition feeding device for a gun
having a loading tray movable in a cycle from
a ?ring position to a loading position and back
to a ?ring position, comprising a magazine for
rounds, a delivery position to which rounds in
the magazine are fed and which is stationary
relative to the gun mounting, an endless con
veyor to feed a round automatically to the de
livery position for each cycle of movement of
the loading tray, a waiting tray mounted to move
with the gun cradle, a transfer device mounted
to swing about the trunnion axis of the gun and
connected and arranged to engage a round at the
delivery position, means to actuate said trans
each cycle of movement of the loading tray, a 50 fer device automatically in timed relationship
with the movement of the loading tray to tran
waiting tray mounted to move with the gun cradle,
fer the round to the waiting tray, control means
a transfer device mounted to swing about the
for keeping a round in position on the waiting
trunnion axis of the gun and adapted to en
tray, means actuated by the movements of the
gage a round at the delivery position, means to
actuate said transfer device automatically in 55 loading tray to move a round from the waiting
tray to the loading tray when the latter is in
timed relationship with the movement of the load
the ?ring position, and means for releasing said
ing tray to transfer the round to the waiting tray,
control means when the round is to be delivered
and means for moving a round from the wait
to the loading tray.
ing tray to the loading tray when the latter is in
16. An ammunition feeding device for a gun
00
the ?ring position.
having a loading tray movable in a cycle from a
13. An ammunition feeding device for a gun
?ring position to a loading position and back to
having a loading tray movable in a cycle from
a ?ring position, comprising a magazine for
ya ?ring position to a loading position and back
rounds, a delivery position to which rounds in
to a ?ring position, comprising a magazine for
rounds, a delivery position to which rounds in the 65 the magazine are fed and which is stationary
relative to the gun mounting, feeding means to
magazine are fed and which is stationary relative
feed a round automatically to the delivery po
to the gun mounting, an endless conveyor to feed
sition for each cycle of movement of the load
a round automatically to the delivery position for
ing tray, a waiting tray mounted to move with
each cycle of movement of the loading tray, a
waiting tray mounted to move with the gun cradle, 70 the gun cradle, a transfer device mounted to
swing about the trunnion axis of the gun and
a transfer device mounted to swing about the
connected and arranged to engage a round at the
trunnion axis of the gun and connected and ar
delivery position, means to actuate said trans
ranged to engage a round at the delivery posi
fer device automatically in timed relationship
tion, means to actuate said transfer device auto
‘matically in timed relationship with the move
75 with the movement of the loading tray to trans
17
2,499,271
fer the round to the waiting tray, and means for
moving a round from the waiting tray to the
loading tray when the latter is in the ?ring po
sition, said transfer device comprising clips
adapted to support and retain a round, means for
rotating said clips when the device reaches the
waiting tray to remove the round from the de
vice and deliver it to the waiting tray, holding
means for positively holding said clips in posi
tion after rotary movement in either direction,
and means for tripping said holding means in
timed relationship with the movements of the
transfer device and restoring the clips to their
previous position for the purpose described.
17. An ammunition feeding device for a gun
having a loading tray movable in a cycle from a
18
at the delivery position, an electric motor to
drive said transfer device and arranged to ac
tuate said transfer device automatically in timed
relationship with the movement of the loading
tray to transfer the round to the waiting tray,
and means for moving a round from the waiting
tray to the loading tray when the latter is in
the ?ring position, switches being provided to
start and stop the said electric motors in timed
relationship with the movements of the load
ing tray.
19. An ammunition feeding device for a gun
having a loading tray movable in a cycle from a
?ring position to a loading position and back to
a ?ring position, comprising a magazine for
rounds, a delivery position to which rounds in
the magazine are fed and which is stationary
?ring position to a leading position and back
to a ?ring position, comprising a magazine for
relative to the gun mounting, an endless con
rounds, a delivery position to which rounds in
veyor
to feed a round automatically to the deliv
the magazine are fed and which is stationary 20
ery position for each cycle of movement of the
relative to the gun mounting, feeding means
loading tray, an electric motor to drive said con
to feed a round automatically to the delivery po
veyor intermittently, a waiting tray mounted to
sition for each cycle of movement of the loading
move with the gun cradle, a transfer device
tray, a waiting tray mounted to move with the
mounted to swing about the trunnion axis of the
gun cradle, a transfer device mounted to swing 25 gun and connected and arranged to engage a
about the trunnion axis of the gun and con
round at the delivery position, an electric motor
nected and arranged to engage a round at the
to drive said transfer device and arranged to
delivery position, means to actuate said trans
fer device automatically in timed relationship
actuate said transfer device automatically in
timed relationship with the movement of the
with the movement of the loading tray to trans 30 loading
tray to transfer the round from the de
fer the round from the delivery position to the
livery position to the waiting tray as the load
waiting tray as the loading tray moves in to the
ing tray moves into the loading position, a part
loading position, a part movable with said trans
movable
with said transfer device, means mov
fer device, means movable with the gun cradle
able with the gun cradle and cooperating with
and cooperating with said part automatically to
said part automatically to stop the transfer de
stop the transfer device at the appropriate an
vice at the appropriate angle, means automati
gle, means automatically to return the transfer
cally to return the transfer device to the de
device to the delivery position after it has de
livery position after it has delivered a round to
livered a round to the waiting tray, and means
the waiting tray, and means for moving a round
for moving a round from the waiting tray to the 40 from the waiting tray to the loading tray when
loading tray when the latter is in the ?ring po
the latter is in the ?ring position, switches be
sition, said transfer device comprising clips
ing provided to start and stop the said electric
adapted to support and retain a round, means
motors in timed relationship with the move
for rotating said clips when the device reaches
ments of the loading tray.
the waiting tray to remove the round from the 45
device and deliver it to the waiting tray, hold
VALENTINE PEARCE HARVEY.
ing means for positively holding said clips in po
GORDON FRANCIS WELLINGTON POWELL.
sition after rotary movement in either direction,
WILLIAM WOOD.
and means for tripping said holding means in
timed relationship with the movements of the 50
transfer device and restoring the clips to their
previous position for the purpose described.
18. An ammunition feeding device for a gun
having a loading tray movable in a cycle from
a ?ring position to a loading position and back
to a ?ring position, comprising a magazine for
rounds, a delivery position to which rounds in
the magazine are fed and which is stationary rel
ative to the gun mounting, an endless conveyor
to feed a round automatically to the delivery po
sition for each cycle of movement of the loading
tray, an electric motor to drive said conveyor in
termittently, a waiting tray mounted to move
with the gun cradle, a transfer device mounted
to swing about the trunnion axis of the gun
and connected and arranged to engage a round
REFERENCES CITED
The following references are of record in the
?le of this patent:
Number
329,471
1,188,629
1,753,850
2,004,855
2,382,522
Number
706,222
586,230
UNITED STATES‘ PATENTS
Name
Date
Maxim ___________ 1. Nov. 3,
Dawson et a1 _____ __ June 2'7,
Courseuller ______ __ Apr. 8,
Daum __________ __ June 11,
Trotter _________ __ Aug. 14,
FOREIGN PATENTS
Country
1885
1916
1930
1935
1945
Date
Germany ________ __ May 21, 1931
Great Britain ____ __ Mar. 12, 1947
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