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April 19, 1949.
M. GENGELBACH
2,467,617
POWER SCOOP OR SHOVEL FOR TRACTORS
Filed Aug. 20, 1945
4 Sheets-Sheet 1
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April 19, 1949.
M. Gr-:NGELBACH
2,467,617
POWER SCOOP OR SHOVEL FOR TRACTORS
Filed Aug. 20, 1945
4 Sheets-Sheet 2
INVENTOR.
„nun/cf GEA/GEL anc/g
April 19, 1949-
2,467,617
M. GENGELBACH
POWER SCOOP OR SHOVEL FOR TRÀCTORS
4 Sheets-Sheet 5
Filed Aug. 20, 1945
JNVENTOIL
/79 wP/cf 65126545120(
[email protected] ä
â ,
April 19, 1949.
M. GENGELBACH
2,467,617
POWER SCOOP OR SHOVEL FOR TRACTORS
Filed Aug. 20, 1945
4 Sheets-Sheet 4
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INVEN TOR.
Patented Àîpr,a V19„ [email protected]
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and embodying the improved features comprising
The present invention y relates "to materiall
handling equipment, with particular reference
the present invention;
to power shovel or scoop apparatus designed to
be mounted for operation upon regular or con
Figure 2 is a sectional elevationgof the same.
with dotted lines representing the scoop or shovel
ventional forms of farm tractors. and also
adapted to be readily and conveniently operated
and controlled by the driver of such tractor
`member operated'into dumping position;
equipment.
Figure 3 is a similar view of the construction,
showing said shovel or scoop member after being
operated by its control connections into a raised
,
Accordingly an object of I,the invention is to
'
-
position:
provide apparatus of this character which com
prises a shovel or scoop member mounted in
Figures 4 and 5 are enlarged sectional detail
views, illustrating the latching or shovel secur
framework adapted to be attached to the tractor,
and including connections whereby the shovel
ing means hereinafter described;
'
,
Figure 6 is a rear elevation of the apparatus,
with portions at the right thereof broken away
or scoop is operated by a thrust action which is
imparted or transmitted from the rear of the 15 and in section for clearer illustration of the con
shovel and applied thereto at the front or digging
struction of the remaining parts; and
margin of the shovel.
Figure 7 is a detail elevation (on a larger scale)
showing one of the frame pieces for supporting
_
The shovel or scoop member and its 1support
the bell crank assembly to which are secured
ing connections are furthermore vso arranged
as to provide for raising or lowering movement 20 the shovel or scoop lifting connections (the latter
being omitted from said view).
of the shovel by the operation of suitable hy
Referring now to the accompanying drawings
draulic connections, as hereinafter described.
in detail, the improved apparatus is illustrated
A further object of the invention is to provide
as comprising a shovel or scoop member 80 having
an arrangement and construction whereby the
supporting means or connections for the shovel 25 plates i2 secured to its'opposite sides and near
the front of the shovel, and these plates project
or scoop member include means for conveniently
somewhat above the shovel for engaging pivots
adjusting or regulating the operative level of the
’ shovel as may be required for controlling and
Il projecting inwardly from bracket members It
modifying its working position to suit varyin
which are mountedron the front ends of a U
conditions.
'
Itis a stili further object ofthe invention to
provide apparatus of this character in which the
shaped angle bar frame it. The front ends of
this frame i8 are pivotally connected with drag
links 20 -extending forward to brackets 22 which
provide pivotal connections (as indicated at 24)
with upright frame pieces 26 which are rigid with
shovel or scoop member is eil'ectively secured and
latched in normal working or material-receiving
position, but is further provided with means 35 the chassis frame 28 of a tractor and are also
provided with brace connections therewith, as
operative either from the driver’s position or
illustrated at 29 inFigures 2 and 3.
from a point at the rear of the apparatus, for
releasing the shovel from such securing or latch- '
The U-shaped shovel-carrying frame vI8 is pro
vided with a pair of upright posts [email protected] at its op
ing means and permitting the shovel to 4execute
a dumping operation -by a rocking movement 40 posite sides and loosely pivoted thereto as indi
cated at 3l. The upper portions of said posts
within its supporting framework.
30 are reduced to slender bar form and have their
With the foregoing general objects in view,
upper ends adjustably connected (as indicated
as/well as various minor objects as will herein
Il) to brace members 32 which extendrear
?fait-er appear, the invention will now be described 45 at
wardlyand are secured to the rear portion of the by reference' tothe accompanying drawings' illus
frame Il (see Figure 1). The ubi-'Nir ends of the
trating one form of construction which has been
posts 30 are also connected by links 34 with a
found desirable -and eflicient for the embodiment
pair of U-shaped bracket members 36 supported
of the proposed improvements, after which those
by rigid frame pieces 38 which are attached to
features and combinations deemed vto be novel 50 the tractor frame 2l. as illustrated in Figures 2
and patentable will be particularly set forth and
and 3. Each of the bracket members“ is pro
claimed.
'
vided withl a hand lever III which is adapted to
In the accompanying drawings'
be adjustably secured in various positions along
Figure 1 is a plan view illustrating a power
a ratchet arm 42, and is also connected by a link
shovel and connections for tractor equipment
u with the plunger or piston rod “of a hydrau
are
trameIIofthetractor,asillmtrated
Figureszandß. Theforwardendof
IIilaisoprovidedwithasuitableeoil
10
ll
is securedto a rocker shaitII Journaled in the
frame pieces II; and each of the bellerank as
sembliesalso comprises a pair of lifting arms
which are connected by U-shaped lifting links l
Il, clips II and bolts II or the like to the lower
portions of the aforesaid posts II (see Figures.
2 and 3).
.
.
s
,
The operation of the shovel throughthe medi
um ofthe above-described connections. including
the hydraulic cylinders II, will serve to raise
securely latchedfrelation until the bars 1I are
l again released by the operator.
lach of the rear corners- of’the shovel is pro
vided with a fixed rearwardly projecting arm II.
and normally these arms are both supported by
the said rear transverse portion „of the shovel
carryingvframe II. There is also provided an
operating arm III pivotally connected with the
arm II. asindicated at III, and extending for
ward into sliding engagement with a guide loop
or keeper II! at the upper end of one of the ver
the position of the levers III-the hydraulic cylin
tical posts II, and into a position conveniently
accessible from the driver’s position on the trac
tor, for the purpose of controlling the latching
means, and hence the dumping operation of the
ders being of course provided with suitable con
shovel.V
and lower the shovel within the vertical limits as
determined by the length of the working stroke
of the said cylinders and also the adjustment of
i nections 1I leading to the usual conventional
master valve control (not sliown) .
,
` _In the operation of the apparatus, constructed
as above described, the shovel or scoop member
The shovel II is provided with operating or
thrust arms combined with latching or securing
‘II is normally carried in horizontal position, as
y illustrated by the full lines in Figures 2 and 3;
means for maintaining the shovel normally in
substantially horizontal position within its
carrying frame II, as :represented by the full
' the shovel with the material, the‘shovel is carried
in a more or less lowered position, as represented
,iecting arm II, which is'designed for manual op
controlled by regulating the levers II and chang
ing the position thereof along the racks I2,
-and for scooping purposes and thereby loading
in Figure 2. In >the travelling movement of the4
lines in the drawings. V.This 'construction com
tractor, a driving thrust or pushing action is im
prises a pair of bars 1I pivoted at 'II to the lower`
parted to the shovel by the frame II engaging
front corners of the shovel, and having their
the rear ends of the bars 1I, which have their
rear ends projecting over stop or limiting brack
forward ends attached to the opposite lower cor
ets II inside the rear corners of the frame II
'ners of the shovelfand all the parts being se
(see Figures 2 and 4). The extreme rear ends
of the bars 1I operate slidingly -between pairs of 45 curely held in this operative relationship by the
'action of the latching means as shown in Figure
pins I2 which are carried by latch plates II that
4. The raising and' lowering of the shovel, into or
are secured to the opposite ends of a rocker shaft
out of its lowered working position (shown in
II ,imxrnaled in blocks II at opposite rear corners
Figure 2) is brought-about by the operating ac- `
of the frame II. Thus said rear ends or the bars
1I are normally directed in position for abutting V50 tion ofthe hydraulic-cylinders II and their con
trol connections, whereby the action of the hy
engagement; against suitably inclined or wedge
draulic connections can be stopped at'any desired
shaped elements 'Il carried by the rear transverse
point. Moreover the height to which the shovel
portion of the said frame II, as represented'in
may be raised and likewise the extent to which it
Figure 4 of the drawings. One of said latch plates
II is provided with a curved and upwardly pro 6.5. will be lowered (and hence its working level) are
eration. Intermediate its ends the rocker shaft
>II has fixed thereto a plate "carrying a sliding
bolt I! provided with a suitable spring II, and ar
ranged for abutting engagement `with the rear
side of the frame II, in such a way as to maintain
the latch plates II normally in latching relation ï
to th'ewbars 'II for supporting the latter in raised
position, or as represented by the ’full lines in
Figure 4. However, when said latch plates Il
>areroc'kedabouttheaxisoftheshaftIItoan
whereby the set positions of the pistons or plung
ers of the ycylinders '4I may be controlled and
`hence the limits of the forward and backward
movements or said cylinders correspondingly
regulated, as will be readily understood. It may
also' be pointed out that some variation of the
working Ntch of the shovelmay be brought
about by adjustment of the connections II at
the upper ends of the brace arman in an obvious
extent suillcient to >lower the extreme ends of
VIn the operating of dumping the shovel member
the bars ‘II in position to clear the lower edge
II. the locking or latching `means illustrated in
o! the frame II (as represented by the dotted
lines in Figure 4), the Vshovel will thereby be 70 Figure 4 may be released by the operator pushing
forward the arm II. or the same releasing opera
released for vertical dumping movement about
tion may be accomplished by the driver, by pulling
the axis of the pivots Il, as illustrated by the
upward on the arm III (as indicated in Figure
dotted lines in Figure 2; moreover, as said bars
2), whereby the latch plates“ aremoved into
‘II slide rearwardly over the stop or limiting
brackets II, the shovel will become temporarily 1s the position illustrated by the‘dotted lines in
2,407,317
6
Figure 4 for bringing the rear ends of the bars
connections for raising and lowering said auxiliary
16 below the level of the cross frame portion of
shovel-carrying frame.
the shovel-carrying frame i8. The shovel mem
ber is thereby allowed to swing freely into dump
ing position as represented in Figure 2, and such
dumping movement is of course limited by the
action of the projections or barbs 96 which be
come temporarily locked by their engagement be
y
4. Power shovel -apparatus for tractor opera
tion, comprising a main supporting framework for
mounting on the tractor, an auxiliary frame and
shovelr carried thereby for dumping movement,
traction means pivotally connecting said auxiliary
frame to said main framework in front of the
shovel, combination latch and thrust bars con
tween the lower latch pins 82 and the said cross
frame portion, as lpreviously explained.
10 nected with the front of said shovel and releasably
It will therefore be apparent that I have de
vised a practical and highly eiiicient arrangement
and construction of apparatus for the carrying
out of all the desired objects of my invention; and
While I have illustrated and described one pre
ferred form of embodiment of my proposed im
provements, I desire to be understood as reserv
ing the right to make such changes or modifica
tions as may fairly fall within the scope of the
connected with said auxiliary frame at the rear of
the shovel, and means for releasing the rear ends
0f said bars to permit dumping operation of the
shovel.
5. Power shovel apparatus for tractor opera
tion, comprising a main supporting framework
for mounting on the tractor, an auxiliary frame
and shovel carried thereby for dumping move
ment, traction means pivotally-connecting said
appended claims.
20 auxiliary frame to said main framework in front `
of the shovel, operating means provided with
Having thus described my invention, what-I
connections for raising and lowering said auxiliary
claim and desire to secure by Letters Patent is:
1. Power shovel apparatus for tractor opera
tion, comprising «a main supporting framework for
mounting on thetractor, an adjustable auxiliary
frame, a shovel supported by said auxiliary frame
for dumping movement,_operative thrust means
connected with the front of the shovel and having
abutting engagement with said auxiliary frame at
the rear of the shovel, and hydraulic operating
means mounted on said> main framework and
provided with connections for raising and lower
ing said auxiliary frame.
2. Power shovel apparatus for tractor opera
tion, comprising a main supporting framework
frame, combination latch and thrust bars con
nected with the front of said shovel and releasably
connected with said auxiliary frame at the rear
of the shovel, means for releasing the rear ends
of said bars to permit dumping movement of the
shovel, and means operable from the driver’s posi
tion for controlling both said operating and said
releasing means.
6. Power shovel apparatus for tractor opera
tion, comprising a main supporting framework
for mounting on the tractor, an auxiliary frame
and shovel carried thereby for dumping move
ment, traction means pivotally connecting said
auxiliary frame to said main framework in front
of the shovel, combination latch and thrust bars
and shovel carried thereby for dumping move
connected with the front of the shovel -and re
ment, operative thrust bars pivoted to the front
leasably connected with said auxiliary frame at
of said shovel and having abutting engagement
with said auxiliary frame at the rear of the shovel, 40 the rear of the shovel, means for releasing the
rear ends of said bars to permit dumping opera
and shovel operating means supported by said
tion of the shovel, and means for latching said
main framework and provided with connections
thrust bars to retain the shovel in its dumping
for raising and lowering said auxiliary shovel
position.
carrying frame.
MAURICE GENGELBACH.
3. Power shovel apparatus for tractor opera es
tion, comprising a main supporting framework for
REFERENCES CITED
mounting on the tractor, an auxiliary frame and
shovel carried thereby for dumping movement,
The following references are of record in the
traction bars pivotally connecting said *auxiliary
file of this patent:
frame with said main framework in front of said 50
UNITED STATES PATENTS
shovel, operative thrust bars pivotally connected
Number
Name
Date
to the front of said shovel and having releasable
for mounting on the tractor, an auxiliary frame
abutting engagement with saidy auxiliary rframe
at the rear of the shovel, and operating means
carried by said main framework and provided with
2,268,689
2,337,762
2,350,327
Andrus ___________ __ Jan. 6, 1942
Mott _____________ __ Dec. 28, 1943
Ender ____________ __ June 6, 1944
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