Патент USA US2518407

Aug. 8, 1950 -
2,518,402
c. E. TOTMAN
COMPRESSION CONTROL FOR BALING PRESSES
Filed Aug. 17, 1946
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2,518,402
Patented Aug. 8, 1950
‘UNITED’ STATES PATENT OFFICE
COMPRESSION ‘CONTROL FOR BALING
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-P_RESSES.
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cum-as;minim-‘m0 Vista, Calif., assignor to
lrlnterna‘tional Harvester Company, a corpora
Application Augie V17, 1946,‘ Serial No. 691,311
13 Claims. (01. 100-23)
2
The drawing illustrates a plunger chamber ID,
' W This invention relates to baling ‘presses-l I More
one side wall of which may be bent for feeding
specifically, it relates to compression "control
means for use in the baling chambe'r'fof a baling
material thereto. A baling plunger II is il
lustrated in a position at the end of its compres
j press.
‘ In the
_ conventional
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hay v press, means
x
"' are usuj
sion stroke in the plunger chamber.
ally provided for manually adjusting the restric
tion at the outlet *e'nd'of the bale fc‘n'amber'in
order to control the pressure in the bale chamber
plunger chamber by a plurality of parts which
will be described in detail.
and the density or weight 'of " thebales being
‘made. The Hitchcock Patent 2389510 ‘discloses .
‘an automatic means whereby the‘ friction-of the
automatically regulates the compression in?the
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The plunger chamber H] is formed principally
by two opposite walls I3, each being in the shape
‘ of a channel having a wide bottom portion l4 and
narrow inturned ?anges IS. The baling cham
ber I2 is formed essentially of two walls l6 hav
ing exactly the same channel section as the walls
I3. The walls It are positioned in longitudinal
alignment with the walls and may be considered
as movable extensions of said walls. Retaining
members I‘! are wrapped around the ends of the
walls l6 adjacent the ends of the walls l3 ‘and
are rigidly secured as by welding to the walls Hi.
moving bale‘ on the‘ sides of the bale chamber
bale chamber.
A baling
chamber 12 is formed as a continuation of the
a 7-
The ‘principal objector the present invention
is to' provide improved automatic pressure‘ regu
lating means ‘actuated by friction betweén‘zthe
'bale in a bale chamber and the walls thereof.’
~Anoth'er'important objectjis to“ provide im
proved bale compression adjusting means in
f“\‘v‘l'i'richt positive linkage is provided'forisupporting
The retaining members ll loosely overlap the
ends of the walls [3 and hold the walls It against
the movable walls of the bale chamber and in
which the resilient means for regulating the com
pression in the bale chamber ‘may’ be adjusted
inward movement toward each other with re
spect to the walls [3 and against edgewise move
ment with respect to the walls 13‘.
Links [8 are pivotally connected by pins l9 to
the ?anges of the walls It adjacent the ends of
tion.
Another important
‘ object is' to interconnectlby
"5'“
the walls 13. Said ?anges are angled at their
positive linkage two movable walls ofQa “baling
end portions so that they do not engage the
chamber, whereby said walls‘ move‘lin‘ the same
?anges
of the walls i3 during converging move
direction simultaneously and with substantially _.,_
ment of the-walls [6. The purpose of the links
the same movement, both in ‘a longitudinal “di
I8 is to hold the rear ends of the walls l6 against
'rection and in an angular direction for diverging
outward movement to thereby con?ne the bale
being formed while at the same time permitting
The above objects and others, which will'be
sliding angular movement of the walls It about
apparent from the detailed description to'follow,
the pins l9'as pivot points.v The links“! also
are accomplished by a construction :as' illustrated
permit fore ‘and aft movement of the walls It
to icom’pensate'for different conditions of opera
and
converging."
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in Figure
the drawings,
l is aindiagrammatic
which:
‘
plan‘view'i'o'fa
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baling chamber with certain portions" ‘broken
away to better show'the compressionricontrol
structure;
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Figure 2 is a side elevation of a structure shown
in Figure l with certain portions broken‘ away to
better ShOW'the compression control structure;
in the direction of their length which may also '
be ‘considered as to direction of the bale move»
ment during formation. In describing the struc»
mm or the invention, as well as its‘: operation,
the discharge ‘end of the bale chamber-will be
considered the'rear end and‘ the plunger end of
the bale‘ chamber ‘will betermed 'as'the forward
end;
and
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.
Figure 3 is a section taken on the’line 3'43 of
Figure‘l.
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The drawing diagrammatically illustrates "a
portion of a baling'press which may be‘ of. any
A supporting structure for the movable mounts
ed bale chamber walls I6 is provided by a pair
of spaced channel memberslll secured at each
side of the plunger chamber to the walls 13 by
conventional type.‘ Any conventional'means‘ may 50 means‘ of spacing‘blocks 2i interposed'b‘etween
the channel members 2!) and the walls 53‘. The
members
and‘the blocks 2! maybesecured‘by
to the plunger-chamber and for operating‘the
any'
suitable
means; such'as by ‘welding, to each
baling ‘plunger. Also, any type of framework
oth'er'and‘to'the walls 13. of the plunger cham
maybe used‘ for supporting the b'aling chamber
55 ber. At their rear ends the channel members
in any desired position for operating.
be'utilized for feeding the material to‘be'baled
a
2,518,402
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20 are connected by transverse members 22. The
rear ends of the ?anges IE on the walls l3 are
connected by transverse members 23 and a longi
tudinal bale guide and retaining member 24 joins
the transverse members 22 and 23.
Short links 24' are pivotally connected by pins
25 to the channel members 20 and are con
nected by pins 26 to the ?anges of the bale cham_
ber forming walls l5 adjacent their rear ends.
The pivot pins 25 are spaced from the rear ends
of the channel members 29 a greater distance
than are the pivot pins 25, whereby the links 24'
are positioned at an angle extending forwardly
from the pins 26 to the pins 25. As indicated
by the dot-dash arcuate lines 27, which indicate
the path of travel of the pinvs 25, the rear ends
of the walls I6 are diverged or moved outwardly
as the walls l6 are moved rearwardly. This is a
particular signi?cant action in the functioning
of the compression control as will be hereinafter
pointed out.
A diagonally extending link as is connected to
one of the pivot pins I9 at the rear end of one
of the walls I6 and to the pivot pin 26 at the
forward end of the other wall it. The purpose
of this link is to stabilize the movable wall struc
tures, so that when one wall [6 moves forwardly,
5
the compression exerted by the plunger and the
resulting weight of the bale.
In the structure above described, a positive
linkage is provided for supporting both ends of
the bale chamber forming walls It with provision
of fore and aft movement of the bale chamber
walls with concurrent diverging and converging
of the forward ends thereof. The tension springs
34 are applied to the walls in a direct line to
oppose movement thereof during the exertion of
frictional and compressive force on the walls.
This location of the springs results in the mini
mum amount of spring material as the springs
are located to act in a direct line at the most
favorable point of application of force. Another
signi?cant feature of the invention is the means
for tying the forward end of the walls I 6 together
to permit said walls to move in a fore and aft
direction and to move angularly while at the same
time con?ning the forward ends of the walls
against any outward movement. The stabilizing
member 28 provides an important function of
positively connecting the two walls together along
with the links l8, so that each wall moves fore
and aft the same amount and angle at the dis
charge ends the same angular distance in the
the other wall I6 is moved forwardly substantially
the same distance with the result that the for“
same direction simultaneously.
to the wall and midway between the channel
wardly movable walls extending in the direction
of bale movement, a frame structure extending
alongside said walls and spaced outwardly there
Applicant has disclosed and described only one
ward ends of the walls It are diverged substan 30 preferred embodiment of his improved compres
sion control means for baling presses, but it is
tially the same angular distance, a reverse action
understood that all modi?cations falling within
resulting when one wall moves forwardly upon
the appended claims are contemplated as appli
the reduction of compression or frictional resist
cant’s invention.
ance wtih a bale being formed.
What is claimed is:
Each of the walls I6 is provided adjacent its
1. In a baler of the type having a plunger cham
rearward end with an attaching bracket 29 ex~
tending outwardly substantially at right angles
ber and a bale chamber having at least two rear
members 20. A bracket member 36 is provided
adjacent the rear end of each set of channel
members 29, being secured to the flanges of said
channel members. Said members extend be
tween the ?anges of the channel members and are
each provided at their central portions with an
from, adjoining link means pivotally attached to
and connecting said walls at their forward ends
to hold said walls against spreading at that point,
links connecting the rear and discharge ends of
opening 3|. A threaded spring securing member
the bale chamber walls to the frame structure,
32 extends through each opening 3|, nuts 33 being
said links extending at an angle with respect to
threaded on the forward ends of said members.
the transverse axis of the lbaler, whereby move
At their rear ends said members are secured to
ment of the walls rearwardly in the direction of
tension springs 36, said tension springs extending
the bale movement causes the discharge ends of
rearwardly being fastened to spring securing 50 said walls to diverge and to increase the trans
members 35. Said members extend through open
verse dimension of the bale chamber, and resili
ings 36 formed in the brackets 29, nuts 31 being
ent means connecting the walls and the frame
threaded on said members to adjustably regu~
structure for urging the walls forwardly thereby
late the tension of the springs 34.
tending to converge the discharge ends of said
The operation of applicant’s improved hale 55 walls.
compression control has been explained to some
2. In a baler of the type having a plunger cham
extent along with the description of the compo
ber and a bale chamber having at least two rear
nent parts. During operation of the baler em
wardly movable walls extending in the direction
bodying the compression control device, material
of bale movement, a frame structure extending
is fed to the plunger chamber and compressed at 60 alongside said walls and spaced outwardly there
intervals into the bale chamber. The compres
from, links connecting the rear and discharge
sion exerted on the bale being formed is deter
ends of the bale chamber walls to the frame
mined by the restriction of the discharge end of
structure, said links extending at an angle with
the bale chamber as compared to its inlet end.
respect to the transverse axis of the baler, where
This is illustrated by the converging angle of the
by movement of the walls rearwardly in the direc
walls Hi. It has been found in practice that the
tion of the bale movement causes the discharge
friction of the material being compressed in con
ends of said walls to diverge and to increase the
tact with the converging walls of the bale cham
transverse dimension of the bale chamber, a sta~
ber is indicative of the weight of the material
bilizing link connected to one of said walls near
being compressed, particularly under different 70 its rear end and to the other wall near its for
moisture conditions, and that this friction is a
ward end, whereby movement of one wall in a
function of the compression obtained in the bale
longitudinal
direction carries the other member
and. the weight of the ?nished bale. As disclosed
in the same direction for substantially the same
in the previously mentioned Hitchcock patent,
this frictional force may be utilized to regulate 75 distance, and resilient means connecting the
walls and the frame structure for urging the walls
"2,518,462
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fore and aft movement of one ‘wall to the other,
and resilient means connecting the walls‘ and the
rents-rely thereby tending to converge the dis
I charge ends of, said walls.
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frame structure for urging the walls towards the
'3'. In a baler of the type having a plunger
plunger chamber thereby tending to converge the
I chamber and‘ a bale chamber having at least two
rearwardl'y movable walls extending in the direc
CTl
other ends of said members.
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7. In a- baler of the type having a plunger
chamber at least having two oppositely arranged
tending alongside said walls and spaced outward
walls and ‘a bale chamber having at least two
ly therefrom, means connecting said walls at
movable walls arranged substantially in align
their forward ends to hold said walls against
spreading at that point, links connecting the rear 10 ment with said two oppositely arranged walls of
the plunger chamber, a frame‘structure secured
and discharge ends of the bale chamber walls to
to the two oppositely arranged walls of the
the frame structure, said links extending at an
1' tion of‘ bale‘ movement, a frame‘ structure ex—
angle with respect to the transverse axis of the
plunger chamber and extending alongside said
discharge ends of said walls to divergeand to
increase the transverse dimension of the bale
‘chamber, a stabilizing link connected to one oi
at ‘their plunger chamber end against spreading
movementw-hile permitting fore and aft move
ment, links connecting the other ends of the bale
two movable walls and spaced outwardly there
, baler, whereby movement of‘the walls rearwardly
from, means for holding the bale chamber walls
15
in the direction of the bale movement causes the
said walls near its rear end and‘ to the other
wall near its forward end, whereby movement
- of one wall in a longitudinal direction carries the
. other. member in the same direction for substan
tially the same distance, and resilient means con“
linecting the walls and the frame structure for
urging the walls forwardly thereby tending to
V converge the discharge ends of said walls.
4.- Ina baler of the type having a plunger
chamber with at least two oppositely arranged
walls and a bale chamber with at least two mov
able walls arranged substantially in alignment
with the two oppositely arranged walls of the
plunger chamber, a frame structure secured to
the two oppositely arranged walls of the plunger
chamber and extending alongside said walls and
spaced outwardly therefrom, means for holding
thebale chamber walls at their plunger chamber
chamber walls to the frame structure, said links
extending at an angle with respect to the trans~
verse axis of the baler, whereby movement of
the walls in the direction of the bale movement
causes said ends of said walls to diverge and to
increase the transverse dimension of the bale
chamber, a stabilizing link connected to one of
said walls near its rear end and to the other wall
near its forward end, whereby movement of one
wall in a longitudinal direction carries the other
member in vthe same direction for substantially
the same distance, and resilient means connectg
ing the walls and the frame structure for urging
the walls towards the plunger chamber thereby
tending to converge the other ends of said mem
bers.
8. In abaler of the type having a plunger
chamber having at least'two spaced walls and a
bale chamber formed by at least two members
end against spreading movement while permitting
arranged substantially in alignment with the two
fore and aft movement, links pivotally connect—
spaced walls of the plunger chamber, retaining
ing the other ends of the‘ bale chamber walls to 40 members secured to said bale chamber forming
therframe structure, said links extending at an
members and overlapping the ends of the two
angle with respect to thetransverse axis of the
spaced walls of the plunger chamber, a frame
baler, whereby movement of the walls in the
structure secured to the two spaced walls of the
direction oflthe bale movement causes said ends
plunger chamber and ‘extending alongside the
, or said walls to diverge and to increase? the trans
*bale' chamber forming members and spaced out
verse dimension of‘th‘e bale chamber, and re~
wardly therefrom, transverse means p'ivotally
, silient means connecting the walls and the frame
connecting the bale chamber forming members
‘structure-for urging the walls ‘towards the plunger
together at their ends adjacent the plunger
. chamber thereby tending to converge the other
chamber, links connecting the other ‘ends of the
, ends of said chambers.
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bale chamber forming members to the frame
5, A device as set forth in claim 4 in which
‘structure, said links extending at an angle with
the resilient means includes brackets on the for
respect to the transverse axis or the baler, where
ward ends ‘or ‘the bale chamber walls, brackets
by movement of the bale chamber forming mem
on the rear'portions of the‘ frame structure, and
bers in the direction of. the bale movement causes
"tension springs connecting said brackets.
55 the forward ends of said members to diverge
‘6. In ‘a baler of the type having a plunger
. andto increase the transverse dimension of the
' chamber having at least two oppositely arranged
bale chamber at the discharge end, and resilient
:- means connecting the bale chamber forming
walls and a bale chamber having at least two
‘movable walls arranged substantially in align
members and the frame structure for urging said
‘ 'ment with said two oppositely arranged walls of 60 members towards the plunger chamber therebl’
tending to'converge the discharge ends of said
the plunger chamber, a frame structure secured
to’ the ‘two oppositely arranged walls of the
members.
plunger chamber and extending alongside said
9.121 a baler of the type having a plunger
chamber having at least two spaced walls and a
‘ two movable walls and spaced outwardly there“
3 from, means for holding the bale chamber walls 65 bale chamber formed by at least two members
arranged substantially in alignment with the two
at their'plunger chamber endagainst spreading
spaced walls of the plunger chamber, retaining
movement while permitting fore and aft move—
members secured to said bale chamber forming
ment, links connecting the other ends of the bale
members and overlap-ping the ends of the two
"chamber walls to the frame structure,‘ said links
extending at an angle with respect to the trans 70 spaced walls of the‘ plunger chamber, a frame
structure secured to the'two spaced walls of the
verse axis ofthe baler, whe'reby'movement of the
' walls in the direction of the bale movement causes
“said ends of said walls to diverge and to increase
‘ the transverse dimension of the bale chamber,“
‘ means connecting the two walls for transmrtti'ngv
plunger chamber and extending alongside the
bale chamber forming members and spaced out
,wardly therefrom, transverse means connecting
the bale chamber forming members together at
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their ends adjacent the plunger chamber, links
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ber forming members to the frame structure,
whereby movement of the bale chamber forming
frame structure, said links extending at an angle
with respect to the transverse axis of the baler,
whereby movement of the bale chamber forming
members in the direction of the bale movement
members in the direction of the bale movement
causes the forward ends of said members to di
verge and to increase the transverse dimension
causes the forward ends of said members to di
verge and increase the transverse tension of the
transverse bale chamber, a stabilizing link con
connecting the- other ends of the .bale cham
nected to one bale chamber forming member near
of the bale chamber at the discharge end, a sta
its rear end and to the other bale chamber form
bilizing link connected to one bale chamber form
ing member near its rear end and to the other 10 ing member near its forward end, whereby move
bale chamber forming member near its forward
end, whereby movement of one member carries
the other member in the same direction for sub
stantially the same distance, and resilient means
ment of one member carries the other member
in the same direction for substantially the same
distance, and resilient means for urging the bale
and the frame structure for urging said members
12. A baler construction of the type having a
,plunger chamber having at least two opposite
chamber forming members towards the plunger
chamber thereby tending to converge the dis
connecting the bale chamber forming members 15 charge ends of said members.
towards the plunger chamber thereby tending to
converge the discharge ends of said members.
walls formed of a pair of channel members hav
10. A baler of the type having a plunger cham 20 ing relatively wide bases and relatively narrow
ber having at least two opposite walls formed of
?anges thereon, said members being spaced apart
a pair of channel members having relatively wide
"to form a rectangular chamber, at least a pair of
bases and relatively narrow ?anges thereon, said
spaced apart bale chamber forming members
members being spaced apart to form a rectangu
having the same cross-section as said channel
lar chamber, at least a pair of spaced apart bale 25 members and being substantially in alignment
chamber forming members having the same cross
therewith, retaining members secured to said bale
section as said channel members and being sub
chamber forming members and overlapping the
stantially in alignment therewith, retaining
ends of the plunger forming chamber members,
members secured to said bale chamber forming
whereby the bale forming chamber members may
members and overlapping the ends of the plunger 30 be moved angularly to and from each other at
forming chamber members, whereby the bale
their discharge ends, a frame structure secured
forming chamber members may be moved angu
to the two spaced walls of the plunger chamber
larly to and from each other at their discharge
and extending alongside the bale chamber form
ends, a frame structure secured to the two spaced
ing members and spaced outwardly therefrom,
walls of the plunger chamber and extending 35 said frame structure including a pair of spaced
alongside the bale chamber forming members and
members at each side, transverse tie members
spaced outwardly therefrom, transverse tie mem
connecting the bale chamber forming members
bers connecting the bale chamber forming mem
together at their ends adjacent the plunger cham
bers pivotally attached to and together at their
ber, links connecting the other ends of the bale
ends adjacent the plunger chamber, links con 40 chamber forming members to the frame struc
necting the other ends of the bale chamber form
ture, said links extending at an angle with re
spect to the transverse axis of the baler, whereby
ing members to the frame structure, said links
extending at an angle with respect to the trans
movement of the bale chamber forming members
in the direction of the bale movement causes the
verse axis of the baler, whereby movement of the
forward ends of said members to diverge and in
bale chamber forming members in the direction
crease the transverse tension of the transverse
of the bale movement causes the forward ends
bale chamber, a stabilizing link connected to one
of said members to diverge and increase the trans
bale chamber forming member near its rear end
verse tension of the transverse bale chamber, and
and to the other bale chamber forming member
resilient means for urging the bale chamber form
ing members towards the plunger chamber there 50 near its forward end, whereby movement of one
member carries the other member in the same
by tending to converge the discharge ends of said
direction for substantially the same distance,
members.
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brackets connected to the outer sides of the bale
11. A baler of the type having a plunger cham
chamber forming member near their forward
ber having at least two opposite walls formed of
ends and centrally between the respective spaced
a pair of channel members having relatively wide
members of the frame structure, brackets con
bases and relatively narrow ?anges thereon, said
nected between the frame’ structure forming
members being spaced apart to form a rectan
gular chamber, at least a pair of spaced apart , members adjacent their rear ends, resilient means
in the form of longitudinally extending tension
bale chamber forming members having the same
springs connecting said bracket members for urg
cross-section as said channel members and be
ing the bale chamber forming members towards
ing substantially in alignment therewith, retain
the plunger chamber thereby tending to converge
ing members secured to said bale chamber form
the
discharge ends of said members, means to
ing members and overlapping the ends of the
adjust the tension on said springs to thereby ad
plunger forming chamber members, whereby the
just the compression on the bales being formed,
bale forming chamber members may be moved
and transverse means to connect the forward
angularly to and from each other at their dis
ends of the frame structure spaced members.
charge ends, a frame structure secured to the
13. In a baling press of the type having a
two spaced walls of the plunger chamber and
plunger chamber and a bale chamber having at
extending alongside the bale chamber forming 70 least two rearwardly movable walls extending in
members and spaced outwardly therefrom, trans
the direction of bale movement, a frame structure
verse tie members connecting the bale chamber
extending alongside said walls and spaced out
forming members together at their ends adjacent
wardly therefrom, links connecting the rear and
the plunger chamber, links connecting the other
discharge ends of the bale chamber walls to the
ends of the bale chamber forming ‘members to the 75 frame structure, said links extending at an angle
2,518,402
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crease the transverse dimension of the bale cham
10
structure, and tension springs connecting said
with respect to the transverse axis of the baling
press, whereby movement of the walls rearwardly
in the direction of the bale movement causes the
discharge ends of said walls to diverge and to in
brackets.
5
CLIFFORD E. TOTMAN.
REFERENCES CITED
The following references are of record in the
ber, and resilient means connecting the walls and
?le of this patent:
the frame structure for urging the walls for
wardly thereby tending to converge the discharge
UNITED STATES PATENTS
ends of said walls,‘ said resilient means including
Name
Date
brackets on the forward ends of the bale chamber 10 Number
2,389,510
Hitchcock ________ __ NOV. 20, 1945
walls, brackets on the rear portions of the frame