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Nov. 5, 1946.
R.' B. Hl'rcHcoc-K ETAL
¿
2,410,500
FEEDER FOR THRESHERS
‘ .Filed Aug. 2l, 1944A
2 Sheets-Sheet 1
NOV- 5» ï946~
~ R. B. HlTcHc-:QCK Erm.4
2,410,500
FEEDER >F011 THREsHEEs
- Filed Aug. 2l. 1944
E.,
2 Sheets-Sheet 2
.
Patented Nov. 5', 1946
NÉTED STES
2,410,500
vorricr:
FEEDER FOR THRESHERS
Rex B. Hitchcock, Evanston, and Harold S. Seeber,
Moline, Ill., assignors to International Harvester
Company, a corporation oi’ New Jersey
Application August 21, 1944, Serial N o. 550,464
l
4 Claims.
This invention relates to a threshing device.
More specifically it relates to a feeding means
adjustable to gain access to a threshing cylinder.
In the o-peration of threshing machines, par
ticularly those of the traveling harvester thresher
type, clogging is often encountered due to heavy
growth of weeds and other material which is
carried from the harvester part with the grain
(Cl. 130-2’7)
2
are necesssary t0 properly illustrate the feed
mechanism and its adjustment of the invention.
The harvester thresher includes a thresher body
Il) having side walls II and a, top wall I2. The
front end of the thresher body is opened to pro
« vide for the delivery of grain thereto from a har
vester part I3, which is pivoted at Il on the side
walls l l. A portion of a frame structure for the
into the threshing cylinder. It is, therefore, de#
body part lil is shown. Said frame structure in
sirable to provide means for readily gaining ac 10 ciudes vertical upright angle bars I5 and I6,
cess to the threshing cylinder for inspection and
spaced from each other, and angle bars il and
for removing material which has, or is, apt to
i8 extending along the forward Aextremities of
clog the threshing cylinder or prevent its efficient
the side walls l I. It will be noted that the angle
operation. The present invention has to do with
bars il and i8 are arranged at an angle with re
the provision of means whereby an operato-r may
spect to each other, both bars sloping rearwardly
readily gain access to the threshing cylinder
from the center. The upper part of the opening
without removing permanent cover plates or dis
at the> front Vof the thresher body is closed by a
connecting any drive mechanisms.
wall I9. A hinged cover 2@ extends downwardly
The principal object of the invention is to
from the wall I9 substantially to the upper part
mount a feeding device for a threshing mecha 20 of the harvester part I3. The broken away por
nism which can be vertically moved to gain access
to the threshing cylinder.
Another object is to provide a, driving mecha
tion of Figure 1 shows a conveyor 21| which car
ries the cut grain upwardly and into the forward
open-end of the harvester body I I. Curved angle
nism which permits raising of a feeding means
bars 22, as shown in the broken away portion of
without disconnecting the driving mechanism.- 25 Figure î and in dotted lines beyond the broken
Another principal object is to provide a manu
away portion, support a feed plate 23 over which
ally operable linkage which will lift a feeding
the material discharged from the conveyor 2i is
delivered to a thresher cylinder 2d, supported by
the side walls I l of the thresher body and carried
the linkage, until it has manually returned to 30 by a shaft 25 which is shown projecting through
operating position.
one side wall in Figure l. The thresher cylinder
The above objects and others concerned with
carries the usual thresher elements in the form
the positioning of the drive mechanism and the
of rub bars 26, said bars cooperating with a con
construction of the adjusting linkage willbe ap
cave structure including concave elements 21, as
parent from the detailed description to follow.
35 shown in the broken away portion of Figure 1.
In the drawings: »
To assist in delivering material from the con
means out of operative position and hold the
mechanism, due to the inherent construction of
Figure 1 is a side elevation view of a portion
of -a harvester thresher showing the' rear end of
veyor 2l to the thresher cylinder 2li, a rotating
feed member is usually provided. Said member
the harvester part with its conveying mechanism
may take the form of a feed beater 28 having a
and the forward end >of the thresher body with 40 plurality of feeding elements 29 extending tan
its threshing cylinder;
Figure 2 is a View similar to Figure 1 showing
gentially therefrom, circumferentially spaced.
Said elements engage thematerial and move it
the feeding mechanism, which embodies the in
over the plate 23 into engagement with the
vention, lifted to a position which provides access
threshing cylinder. The feed beater 28 is carried
to the threshing cylinder.
45 by a shaft 35i which extends through slots SI
Figure 3 is a section taken on the line 3-3 of
formed in the side walls IIof the thresher body.
Figure 1; and
Said shaft at each end is provided with a cylin
Figure 4 is a section taken on the line «1_-¿l of
drical sleeve 32 which forms a journal for the
Figure 2.
„
shaft. Each sleeve 32 is carried by a supporting
A large portion of the grain in this country is 50 member 33 channel-shaped in cross-section. The
now lharvested by traveling machines called har
over-all width of the member 33 is such that it
vester threshers or combines, the grain being cut
slida-bly fits between the channels I5 and I6, per
and conveyed to a thresher mechanism and
mitting vertical sliding movement of the rsup
threshed all in one operation.v The drawings
porting members with respect to the thresher
show such portions of a harvester thresher as 55 body. The slots 3l are of such length as to per
Y 2,410,500
3
mit the feed beater to be rai-sed to the height as
shown in Figure 2, which gives ample room for
gaining access to the threshing cylinder when the
cover 25 is lifted to the position shown in Figure 2.
A bracket 34, connected to the lower end of
4
What is claimed is:
1. In a harvesting machine having a thresher
body and a harvester part pivotally connected
thereto, said thresher body having an open-end,
side walls and a thresher cylinder supported by
the side walls adjacent the open-end, and said
one of the members 33, extends outwardly and
harvester part having conveyor means for feed
downwardly to provide a support for an idler
ing material through said open-end of the
pulley 35. The idler pulley 35, in the illustra
thresher body to said cylinder, a rotatable feed
tion shown, is in the form of a sprocket and is
in alinement with a drive pulley or sprocket 36 10 ing structure positioned between the conveyor
means and the cylinder, vertical slidable sup
which is provided with a hub 3l keyed to the
porting means for the ends of said feeding struc
shaft 3u for rotation therewith. A drive pulley
38 mounted on the` axis i4 on which the harvester
ture mounted on the side walls of the thresher
body, linkage for lifting thefeeding structure
part is pivoted provides means for driving the
feed beater through the pulley 35. The pulley 15 and the supporting means therefor, said linkage
including an over-center mechanism for main
38 is journaled on a portion of the thresher body
taining the feeding structure in elevated posi
for rotation about a fixed axis. Said pulley may
tion until released, an idler pulley carried by the
>be a part of other drive mechanism and power
slidable supporting means spaced from the axis
may be supplied thereto by any conventional
means. A drive chain 39 surrounds the pulleys 20 to the feeding structure, a drive pulley carried
by the feeding structure, a power input drive pul
or sprockets 35, 3E, and 38. `Other drive mech
ley carried on the thresher body, said pulleys
anism such as a V-belt could be used on grooved
being arranged with the drive pulley on the
pulleys, as the load on the feed beater is not
feeding structure and the idler pulley on the
such as to require a heavy positive drive mech
anism. It will be noted that the pulley 35 lies 25 feeding structure supporting means lying in sub
stantially vertical alinement and said drive pulley
vertically beneath the pulley 3e and that the
being spaced laterally from the other pulleys and
pulley 3B lies horizontally in alinement With the
being substantially horizontal with the feeding
pulley 35, when the feed beater is raised, and
horizontally in alinement with the pulley 36
structure pulley when the feeding structure is in
when the feed beater is lowered.
30 operating position and being substantially hori
A link 4U, having a substantially vertical por
zontal with respect to the idler pulley when the
tion 4I and a rearwardly inclined portion 42, is
feeding structure is in raised position, said ar
rangement of pulleys providing a chain path of
pivotally connected at 43 to each of the sup
substantially the same length during all posi
porting members 33. Each of said links is piv
otally connected by a pin 44 to an arm 45, said' 35 tions of adjustment of the feeding structure, and
arms being rigidly secured to a transverse shaft
46 extending across the thresher body. One
end of the shaft 46 extends beyond the thresher
a drive chain passing over said pulleys.
2. In a harvesting machine having a thresher
body and a harvester part pivotally connected
thereto, said thresher body having an open-end,
body, being provided with an operating exten
sion 4i which may be grasped by an operator 40 side walls and a thresher cylinder supported by Y
for oscillating the shaft 46, thereby oscillating
the side walls adjacent the open-end, and said
the lifting arms 45 from their positions as shown
harvester part having conveyor means for feed
in Figure 1 to the positions as shown in Figure 2.
ing material .through said open-end of the
The feed beater and its supporting member 33
thresher body to said cylinder, a rotatable feed
are lifted by this operation. It will be noted that 45 ing structure positioned between the conveyor
the pivot axes 43 of the links 40, on the mem
means and the cylinder, vertical slidable sup
bers 33 with respect to the pivot pins 44 and the
porting means for the ends of said feeding struc
ture mounted onthe side walls of the thresher
axis of the shaft 46, is such that, due to the
body, linkage for lifting the feeding structure and
curved nature of the links, an over-center posi- .
tion is attained as shown in Figure 2, thereby 50 the supporting means therefor, an idler pulley car
holding the feed beater in raised position until - ried by the slidable supporting means spaced from
the axis to the feeding structure, a drive pulley
the operating extension 41 is moved upwardly to
carried by the feeding structure, a power input
lower the feed beater.
drive pulley carried on the thresher body, said
The arrangement of the sprockets, as pre
viously described in detail, is such that the 55 pulleys being arranged with the drive pulley on
the feeding structure and the idler pulley on
length of the surrounding chain is not greatly
the feeding'structure supporting means lying in
altered during the lifting of the feed beater.
substantially vertical alinement and said drive
This removes the necessity of providing a resil
iently mounted idler or a disconnecting drive
chain during the lifting of the feed beater.
pulley being spaced laterally from the other
60 pulleys and being substantially horizontal with
the feeding structure pulley when the feeding
structure is in operatingposition and being sub
stantially horizontal with respectV to the idler
means for holding the beater in adjusted posi
pulley when the feeding structure is in raised
tion has been explained in connection with the
65 position, said arrangement of pulleys providing
description of the component parts thereof.
a chain path of substantially the same length
As shown in Figure 1, bolts 48, passing through
during all positions of adjustment of the feeding
alined openings in the angle bars l5 and I6 and
structure, and a drive chain passing over said
in channel sides of theV members 33, hold the
[members securely in position when the feed
3. In a harvesting machine having a thresher
beater is in operating position. These bolts are 70
body and a harvester lpart pivotally connected
removed when it is desiredy to lift the beater for
thereto, said thresher body having an open-end,
access to the threshing cylinder.
side walls and a thresher cylinder supportedl by
It will be understood that applicants claim as
the side walls adjacent the open-end, and said
their invention -all modifications falling within ‘
75 harvester part having conveyor means for feed
the scope of the appended claims.
The operation of applicants’ improved feed
beater supporting and lifting structure and
pulleys.
'
'
'
’
5
2,410,500
ing material through said open-end of .the
thresher body to said cylinder, a rotatable feed
ing structure positioned between the conveyor
means and the cylinder, Vertical slidable support-4
ing means for the ends of said feeding structure
mounted on the side Walls of the thresher body,
and linkage for lifting the feeding structure and
the supporting means therefor, said linkage in
cluding a transverse shaft rotatably carried by
the side Walls above the feeding structure, lift
ing arms extending from the shaft, links connect
ing said arms with the vertical slid-able support
ing means, and means to rotate .the shaft.
4. In a harvesting machine having a thresher
6
harvester part having conveyor means for feed
ing material through said open-end of the
thresher body to said cylinder, a rotatable feed
ing structure positioned between the conveyor
means and the cylinder, vertical slidable support
ing means for the ends of said feeding structure
mounted on the side Walls of the thresher body,
and linkage for lifting .the feeding structure and
the supporting means therefor, said linkage in
cluding a transverse shaft rotatably carried by
the side Walls above the feeding structure, lift
ing arms extending from the shaft, curved links
connecting said arms with the ver-tical slidable
supporting means, and means to rotate the shaft
body and a harvester part pivotally connected 15 until the curved links are moved into an over
thereto, said thresher body having an open-end,
center position with respect to the shaft.
side Walls and a thresher cylinder supported by
REX B. HITCHCOCK.
the side Walls adjacent the open-end, and said
HAROLD S. SEEBER.
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