Improvements in Feeders and Band Cutters for Inrasang ma
Year: 1897

page_text: Date of Application, 12th Jan., 1897
Improvements in Feeders and Band Cutters for Inrasang ma
We, JOHN MILLARD SAILER, Inventor, and JOSEPH MORTON BOSTWICK, Gentle-
man, both of Janesville, in the County of Rock, and State of Wisconsin, United
States of America, do hereby declare the nature of this invention to be as follows:-
Our invention has relation to improvements in feeders and band cutters for
thrashing machines.
The primary object is to provide a construction wherein the sheaves will be fed
from the side or sides, and the band severed by means of improved cutting
mechanism. A further object is the construction whereby after the band of the
sheave has been severed the quantity of loose grain which is fed to the thrashing
mechanism is regulated.
The device, furthermore, is compact and simple in construction, inexpensive of
production, and can be readily attached to any old machine, and connected up to
the gearing thereof without the necessity of changing any of the parts of such
machine.
The invention contemplates other objects which will hereinafter more fully
appear.
The invention consists of the devices and parts, or their equivalents as herein-
after more fully set forth.
In the accompanying drawing,
Figure 1 is an end view of the feeding and band cutting attachment.
Figure 2 is a plan view of Figure 1 showing a fragment of the thrashing machinė
frame to which the device is attached.
Figure 3 is a longitudinal sectional view on the line 3-3 of Figure 2.
Figure 4 is a detail edge view, on an enlarged scale of the adjustable knife
carrying boards, and
Figure 5 is a detail to show clearly the bearings for the cutter bars.
Referring to the drawing the numeral 6 indicates a fragment of the frame of an
ordinary form of thrashing machine, in which is mounted, upon a transverse
shaft 7, the usual drum or cylinder 8, and below the drum or cylinder the
concavo 9.
The frame of the attachment consists of rectangular frame work 10, which is
placed upon and secured to the rearwardly extending side beams 11, 11, of the
thrashing machine frame. Extending upwardly from central points of the
opposite side pieces of this frame are standards 12, 121. Standard 121 is provided
with an outwardly-extending bearing lug 13, and its lower end is extended down-
wardly below the frame 10, and formed into a bearing eye 14. Depending from
the frame 10 is a bearing arm 15. A shaft 16 is mounted in this arm and in the
eye 14.
At the outer end of shaft 16 is carried a band pulley 17, which is adapted
to be connected up to the actuating mechanism of the thrashing machine by means
of a belt (not shown). Upon the band pulley end of the shaft is mounted a
sprocket wheel 18, while upon the opposite end is a pinion 19.
Passing through the eye of the bearing lug 13 is a shaft 20, the ends of said

page_text: shaft journalled in bearings 21 21', the latter being formed at the upper end of
arm 15. This shaft carries at one extremity a sprocket wheel 22, and near
opposite ends beveled pinions 23, 23. Below shaft 20 is a shaft 24, the ends
thereof journalled in bearing arms or hangers 25, 25. This shaft is provided with
two cranks and carries thereon a gear wheel 26 with which the pinion 19 meshes,
whereby rotation is imparted to the crank shaft. Rotation is given to the upper
shaft 20 by means of a sprocket chain 27 connecting the two sprocket
wheels 18 and 22.
Beneath the centre of the frame 10 is an inclined carrier board 28, the lower
forward end thereof resting upon an extension 29 from the concave, and the rear
upper end thereof resting upon the upper edge of the rear side bar of frame 10,
said edge being beveled off, as indicated at 30, to admit of the rear end of the carrier
board sliding smoothly thereover. This end of the board is slotted as indicated
at 31, in order to permit of its straddling the standard 121, so that said standard
will not interfere with the rear reciprocation of the carrier board. Connected to
the underside of the carrier board are bifurcated lugs 32, 32, between the furcate
parts of which the rear ends of links 33, 33 are pivoted. The forward ends of
these links are connected to the respective cranks of the crank shaft 24. The
carrier board in Figure 3 of the drawing is shown at the extreme forward limit of
its movement. At the extreme rear limit of its movement, the forward end of the
board would rest upon the extremity of the extension 29. This disposition of the
carrier board and the described connection of said board to the links 33, enables
the board to be readily removed when it becomes necessary to obtain access to
the drum or cylinder, or interior under parts of the machine. This removal is
effected when the board is at the limit of its rear movement, at which time the
forward end of said hoard is supported at the extremity of the extension 29. The
rear end of the board is then raised, turning upon the pivoted connection between'
the depending lugs 32 and the links 33. After said end is raised a certain distance,
the forward end will clear the extension 29, and thereby allow the board to drop
clear of the frame work. The upper side of the carrier board is provided with a
series of ridges 34, having their upper faces inclined forwardly. These ridges are
disposed transversely over the board, each transverse line being composed of a
plurality of said ridges.
Mounted in the outer ends of the frame 10 are rolls 35, 35, and at a distance
inwardly from these rolls similar rolls 36, 36 are also mounted in the frame. Upon
the extended ends of the shafts of these latter rolls are mounted beveled
gears 37, 37 which mesh with the beveled pinions 23, 23, and are rotated thereby.
Passing around the rolls 35 36 are endless belts 38, 38, preferably of canvas or like
flexible material. These belts are rendered more or less rigid by means of trans-
verse strips 39, of sheet steel, or similar metal. The belts have also secured thereto
lengthwise, longitudinal endless strips 40, advisably of leather. Riveted or other-
wise secured, at distances apart on these longitudinal strips are angle irons 41,
the upwardly extending fingers thereof adapted to engage the sheaves so as to
enable said sheaves to be readily carried along with the belts. These fingers (if
the contingency were not guarded against) would have a tendency in the travel of
the belts, to carry the grain around and beneath the inner rolls 36, 36. To
obviate this I provide a series of longitudinal slats, which lie close to the belts, and
on which the grain is supported directly. The outer ends of these slats are con-
nected to the end pieces of the frame 10, while the inner ends of said slats are
curved downwardly as clearly shown. It is obvious that when the loose grain
reaches these curved ends, the fingers of the angle irons 41 will merely push said
grain over the curved ends on to the carrier board 28, the possibility of the grain
being carried under thereby absolutely prevented.
While we have described the endless feed belts as composed of canvas or like
flexible material, provided with the transverse strips 39, yet we do not wish to be
understood as thereby restricting ourselves to this particular construction, as any
desirable form of side carrying mechanism may be used.

page_text: At the upper ends of the standards 12 121 is carried a non-rotatable shaft 43;
upon which is swung, by means of hinge leaves 44, 44, the adjustable knife-carry-
ing boards 45, 45. At the lower edges of these boards are secured a series of
arms 46, having their lower ends formed into angular bearings in which cutter
bars 47, 47 reciprocate. The opposing faces of these bars have secured. thereto
the cutting, blades 48, 48, which blades project through slots 49 in the anular
bearings, and are provided with V-shaped cutting points.
Extending parallel with and beneath, the non-rotatable shaft 43 is a bar 50;
the ends of which extend through the standard 12 12. One end of this bar is
connected to an upright lever 51, fulcrumed at the end of an arm 52 projecting
rearwardly from standard 121. The lower end of this upright lever 51 is con-
nected to a crank 53 on the end of shaft 16, by means of a link 54. The opposite
end of bar 50 has connected thereto two U-shaped blocks 55 55, in which blocks
are received the cranked ends of rock shafts 56, 56 said shafts turning in bear-
ings 57, 5 secured to the edges of the boards 45. The lower ends of the rock
shafts terminate in heads or plates 58, 58 from which project fingers 59 59, which
fingers enter apertures therefor in lugs 60, 60 projecting at right angles from the
cutter bars 47. This construction practically forms a double crank connection
between the rock shafts and the cutter bars. It is obvious that when the machine
is running the rotation of the shaft 16 will through the crank 53, link 54, upright
lever 51, bar 50, and rock shafts 56, impart opposite reciprocations to the cutter
bars and the cutting mechanism carried thereby, whereby a shearing cut is made:
The movement of the cutting blades is very slight, so slight indeed that the points
of one cutting blade will never register with the points of the opposing blade.
Beneath the knife carrying boards 45, 45 are secured brackets 61, 61, said
brackets provided with projecting lugs 62, 62, which lugs straddle screw
shafts 63, 63. Each screw shaft carries thereon collars 64, 64, which abut against
the lug 62, and thereby prevent endwise or longitudinal movement of said screw
shaft. One half of each screw shaft is provided with right hand threads, and the
other half with left hand threads. Secured to the inner surface of each board 45
near the lower edge thereof, are straps 65 65, said straps extending upwardly and
inclining outwardly, and having their upper extremities bent downwardly at right
angles, which angular bends are adapted to bear against the rod 66, which rod has
its ends supported in the uprights. 12 12¹. The upper surface of each strap is
formed or provided with a threaded sleeve 67 through which the screw shaft
passes, the threads of said sleeve corresponding to the threads of that portion of
the shaft which passes through the sleeve. One end of each screw shaft is provided
with a suitable head 68 for convenience in turning the same. It is obvious that
inasmuch as the screw shafts are held against. longitudinal movement when said
shafts are turned the knife carrying boards are either raised or lowered, as the
case may be, and thereby the distance of the lower edges of said board from the
endless fecu belts 38 is conveniently regulated.
The band pulley 17 is mounted loosely on shaft 16, and its hub is formed with
clutch teeth, adapted to be engaged by similar teeth of a clutch collar 69, said
clutch collar sliding on a feather 70. Pivoted to a lug 71 depending from the
frame 10, is a lever 72, said lever provided with projecting fingers 73 73, adapted
to engage an annular groove 74 of the clutch collar. Whenever it is desired to
stop the belt, and other working parts of the attachment, all that is necessary to
be done is to throw the lever 72 outwardly, which of course will disconnect the
clutch collar from the clutch hub, whereby the rotation of the pulley 17 by the
driving belt does not effect the shaft 16.
In the operation of the invention the bundles of grain are first placed on the
slats above the side feed belts with their lengths transverse to the line of travel of
said belts. The sheaves are engaged by the upwardly extending fingers of the
angle irons, and are thereby readily carried along by the belts, and when beneath
the edges of the inclined knife carrying boards, the knives act upon the bands of
the sheaves and sever said bands. As the cutting blades reciprocate in a direction

page_text: transverse to the line of travel of the feed belts, the loose grain as soon as the
bands are cut is by this movement of the knives spread out over the surface of the
belts. The grain is carried over the curved ends of the slats 42, and deposited
lengthwise upon the carrier board 28, which board as it is reciprocated forces the
grain to the cylinder or drum. As the carrier board has a perfectly even and
smooth sliding movement, instead of a bumping action as in other forms of
machines, the straw or grain is slid down to the drum, and thereby the proper
feeding from the top of the grain is insured.
It will be apparent that by our improvements as shown and described, wherein
the sheaves are fed, in the first instance, by side feeding belts, said sheaves may
be fed to the belts either very rapidly or very slowly, and yet a continuous or unin-
terrupted stream of loose grain is carried to the cylinder or drum by the carrier
board. In machines in which an end feed is employed, unless the feed is very
rapid, there will be intervals of time when no grain is passing between the drum
and the concave, while yet the moving parts continue to work. This disadvantage
our machine overcomes in a simple manner.
By the provision of the adjustable boards 45 any excess feed of grain is compen-
sated for, inasmuch as such overplus grain will work up or accumulate on
these inclined boards, and at the first opportunity work down to and pass through
the spaces or throats between the edges of the boards and the feed belts. The
width of these spaces or throats is conveniently regulated by the mechanism
herein before described, namely, by turning the screw shafts 63.
It is obvious that our attachment can be readily connected to any form of
thrashing machine, inasmuch as all that is necessary is to run a belt from the
actuating mechanism of such machine to the pulley wheel 17. The attachment
can be readily disconnected merely by slipping off the belt of pulley 17, and
removing any attaching bolts that may be employed.
Improvements in Feeders and Band Cutters for Thrashing Machines.
We, JOHN MILLARD SAILER and JOSEPH MORTON BOSTWICK, both of Janesville,
in the County of Rock, U.S.A., Gentlemen, do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly a
described and ascertained in and by the following statement:
-
Our invention has relation to improvements in feeders and band cutters for
thrashing machines.
The primary object is to provide a construction wherein the sheaves will be fed
from the side or sides, and the band severed by means of improved cutting 4
mechanism. A further object is the construction whereby after the band of the
sheave has been severed the quantity of loose grain which is fed to the thrashing
machine is regulated.
The device, furthermore, is compact and simple in construction, inexpensive of
production, and can be readily attached to any old machine, and connected up to 4
the gearing thereof without the necessity of changing any of the parts of such
machine.
3
The invention contemplates other objects which will hereinafter more fully
appear.
The invention consists of the devices and parts, or their equivalents as herein
after more fully set forth.

page_text: the feeding and band cutting attachment.
Figure 2 is a plan view of Fig. 1 showing a fragment of the thrashing machine
frame to which the device is attached.
Figure 3 is a longitudinal sectional view on the line 3-3 of Figure 2.
Figure 4 is a detail edge view, on an enlarged scale of the adjustable knife
carrying boards, and
Figure 5 is a detail to show clearly the bearings for the cutter bars.
Referring to the drawing the numeral 6 indicates a fragment of the frame of an
ordinary form of thrashing machine, in which is mounted, upon a transverse
shaft 7, the usual drum or cylinder 8, and below the drum or cylinder the
concavo 9.
The frame of the attachment consists of rectangular frame work 10, which is
placed upon and secured to the rearwardly extending side beams 11, 11 of the
thrashing machine frame. Extending upwardly from central points of the
opposite side pieces of this frame are standards 12, 121. Standard 121 is provided
with an outwardly-extending bearing lug 13, and its lower end is extended down-
wardly below the frame 10, and formed into a bearing eye 14. Depending from
the frame 10 is a bearing arm 15. A shaft 16 is mounted in this arm and in the
eye 14.
At the outer end of shaft 16 is carried a band pulley 17, which is adapted
to be connected up to the actuating mechanism of the thrashing machine by means
of a belt (not shown). Upon the band pulley end of the shaft is mounted a
sprocket wheel 18, while upon the opposite end is a pinion 19.
Passing through the eye of the bearing lug 13 is a shaft 20, the ends of said
shaft journalled in bearings 21 211, the latter being formed at the upper end of
arm 15. This shaft carries at one extremity a sprocket wheel 22, and near
opposite ends beveled pinions 23, 23. Below shaft 20 is a shaft 24, the ends
thereof journalled in bearing arms or hangers 25, 25. This shaft is provided with
two cranks and carries thereon a gear wheel 26 with which the pinion 19 meshes,
whereby rotation is imparted to the crank shaft. Rotation is given to the upper
shaft 20 by means of a sprocket chain 27 connecting the two sprocket
wheels 18 and 22.
The
Beneath the centre of the frame 10 is an inclined carrier board 28, the lower
forward end thereof resting upon an extension 29 from the concave, and the rear
upper end thereof resting upon the upper edge of the rear side bar of frame. 10,
said edge being beveled off, as indicated at 30, to admit of the rear end of the carrier
board sliding smoothly thereover. This end of the board is slotted as indicated
at 31, in order to permit of its straddling the standard 121, so that said standard
will not interfere with the rear reciprocation of the carrier board. Connected to
the underside of the carrier board are bifurcated lugs 32, 32, between the furcate
parts of which the rear ends of links 33, 33 are pivoted. The forward ends of
these links are connected to the respective cranks of the crank shaft 24.
carrier board in Fig. 3 of the drawing is shown at the extreme forward limit of
its movement. At the extreme rear limit of its movement, the forward end of the
board would rest upon the extremity of the extension 29. This disposition of the
carrier board and the described connection of said board to the links 33, enables
the board to be readily removed when it becomes necessary to obtain access to
the drum or cylinder, or interior under parts of the machine. This removal is
effected when the board is at the limit of its rear movement, at which time the
forward end of said board is supported at the extremity of the extension 29. The
rear end of the board is then raised, turning upon the pivoted connection between
the depending lugs 32 and the links 33. After said end is raised a certain distance,
the forward end will clear the extension 29, and thereby allow the board to drop
clear of the frame work. The upper side of the carrier board is provided with a
series of ridges 34, having their upper faces inclined forwardly. These ridges are
disposed transversely over the board, each transverse line being composed of a
plurality of said ridges.

page_text: Mounted in the outer ends of the frame 10 are rolls 35, 35, and at a distance
inwardly from these rolls similar rolls 36, 36 are also mounted in the frame. Upon
the extended ends of the shafts of these latter rolls are mounted beveled
gears 37, 37 which mesh with the beveled pinions 23, 23, and are rotated thereby.
Passing around the rolls 35 36 are endless belts 38, 38, preferably of canvas or like
flexible material. These belts are rendered more or less rigid by means of trans-
verse strips 39, of sheet steel, or similar metal. The belts have also secured thereto,
lengthwise, longitudinal endless strips 40, advisably of leather. Riveted or other-
wise secured, at distances apart on these longitudinal strips are angle irons 41,
the upwardly extending fingers thereof adapted to engage the sheaves so as to
enable said sheaves to be readily carried along with the belts. These fingers (if
the contingency were not guarded against) would have a tendency in the travel of
the belts, to carry the grain around and beneath the inner rolls 36, 36. To
obviate this I provide a series of longitudinal slats, which lie close to the belts and
on which the grain is supported directly. The outer ends of these slats are con-
nected to the end pieces of the frame 10, while the inner ends of said slats are
curved downwardly as clearly shown. It is obvious that when the loose grain
reaches these curved ends, the fingers of the angle irons 41 will merely push said
grain over the curved ends on to the carrier board 28, the possibility of the grain
being carried under thereby absolutely prevented.
While I have described the endless feed belts as composed of canvass or like
flexible material, provided with the transverse strips 39, yet we do not wish to be
understood as thereby restricting ourselves to this particular construction, as any
desirable form of side carrying mechanism may be used.
At the upper ends of the standards 12 12' is carried a non-rotatable shaft 43,
upon which is swung, by means of hinge leaves 44, 44, the adjustable knife-carry-
ing boards 45, 45. At the lower edges of these boards are secured a series of
arms 46, having their lower ends formed into angular bearings in which cutter
bars 47, 47 reciprocate. The opposing faces of these bars have secured thereto
the cutting blades 48, 48, which blades project through slots 49 in the angular;
bearings, and are provided with V-shaped cutting points.
Extending parallel with and beneath, the non-rotatable shaft 43 is a bar 50;
the ends of which extend through the standards 12 12. One end of this bar is
connected to an upright lever 51, fulcrumed at the end of an arm. 52 projecting
rearwardly from standard 121. The lower end of this upright lever 51 is con-
nected to a crank 53 on the end of shaft 16, by means of a link 54. The opposite
end of bar 50 has connected thereto two U-shaped blocks 55, 55, in which blocks
are received the cranked ends of rock shafts 56, 56 said shafts turning in bear-
ings 57, 57 secured to the edges of the boards 45. The lower ends of the rock
shafts terminate in heads or plates 58, 58 from which project fingers 59 59 which
fingers enter apertures therefor in lugs 60, 60 projecting at right angles from the
outer bars 47. This construction practically forms a double crank connection
between the rock shafts and the cutter bars. It is obvious that when the machine
is running the rotation of the shaft 16 will through the crank 53, link 54, upright
lever 51, bar 50, and rock shafts 56, impart opposite reciprocations to the cutting
bars and the cutting mechanism carried thereby, whereby a shearing cut is made.
The movement of the cutting blades is very slight, so slight indeed that the points
of one cutting blade will never register with the points of the opposing blade..
Beneath the knife carrying boards 45, 45 are secured brackets 61, 61 said
brackets provided with projecting lugs 62, 62 which lugs straddle screw
shafts 63, 63. Each screw shaft carries thereon collars 64, 64, which abut against
the lug 62, and thereby prevent endwise or longitudinal movement of said screw
shaft. One half of each screw shaft is provided with right hand threads, and the
other half with left hand threads. Pivoted to the inner face of each board 45
near the lower edge thereof are straps 65 65, said straps extending upwardly and
inclining outwardly and having their upper extremities bent downwardly at right
angles, which angular bends are adapted to bear against the rod 66, which rod has

page_text: its ends supported in the uprights 12 121. The upper surface of each strap is
formed or provided with a threaded sleeve 67 through which the screw shaft
passes, the threads of said sleeve corresponding to the threads of that portion of
the shaft which passes through the sleeve. One end of each screw shaft is provided
with a suitable head GS for convenience in turning the same. It is obvious that
inasmuch as the screw shafts are held against longitudinal movement when said
shafts are turned the knife carrying boards are either raised or lowered, as the
case may be, and thereby the distance of the lower edges of said board from the
endless feed belts 38 is conveniently regulated.
The band pulley 17 is mounted loosely on shaft 16, and its hub is formed with
clutch teeth, adapted to be engaged by similar teeth of a clutch collar 69, said
clutch collar sliding on a feather 70. Pivoted to a lug 71 depending from the
frame 10, is a lever 72, said lever provided with projecting fingers 73, 73, adapted
to engage an annular groove 74 of the clutch collar. Whenever it is desired to
stop the belt, and other working parts of the attachment, all that is necessary to
be done is to throw the lever 72 outwardly, which of course will disconnect the
clutch collar from the clutch hub, whereby the rotation of the pulley 17 by the
driving belt does not effect the shaft 16.
In the operation of this invention the bundles of grain are first placed on the
slats above the side feed belts with their lengths transverse to the line of travel of
said belts. The sheaves are engaged by the upwardly extending fingers of the
angle irons, and are thereby readily carried along by the belts, and when beneath
the edges of the inclined knife carrying boards, the knives act upon the bands of
the sheaves and sever said bands. As the cutting blades reciprocate in a direction
transverse to the line of travel of the feed belts, the loose grain as soon as the
bands are cut is by this movement of the knives spread out over the surfaces of the
belts. The grain is carried over the curved ends of the slats 42, and deposited
lengthwise upon the carrier board 28, which board as it is reciprocated forces the
grain to the cylinder or drum. As the carrier board has a perfectly even and
smooth sliding movement, instead of a bumping action as in other forms of
machines, the straw or grain is slid down to the drum, and thereby the proper
feeding from the top of the grain is insured.
It will be apparent that by our improvements as shown and described, wherein
the sheaves are fed, in the first instance, by side feeding belts, said sheaves may
be fed to the belts either very rapidly or very slowly, and yet a continuous or unin-
terrupted stream of the loose grain is carried to the cylinder or drum by the carrier
board. In machines in which an end feed is employed, unless the feed is very
rapid, there will be intervals of time when no grain is passing between the drum
and the concave, while yet the moving parts continue to work. This disadvantage
our machine overcomes in a simple manner.
By the provision of the adjustable boards 45 any excess feed of grain is compen-
sated for, inasmuch as such overplus grain will work up or accumulate on,
these inclined boards, and at the first opportunity work down to and pass through
the spaces or throats between the edges of the boards and the feed belts. The
width of these spaces or throats is conveniently regulated by the mechanism
herein before described, namely, by turning the screw shafts 63.
It is obvious that our attachment can be readily connected to any form of
thrashing machine, inasmuch as all that is necessary is to run a belt from the
actuating mechanism of such machine to the pulley wheel 17. The attachment
can be readily disconnected merely by slipping off the belt of pulley 17, and
removing any attaching bolts that may be employed.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. The combination of a frame adapted for attachment to a thrashing machine,
fooding mechanism mounted in said frame and adapted for
11

page_text: feeding the grain to the machine, a support or supports extending upwardly from
the frame, a board extending downwardly from the support or supports and having
its lower edge terminating a desired distance above the feeding mechanism to form
a throat or space between its lower edge and the feeding mechanism, said board
being of a width corresponding to, or substantially corresponding to, the width
of the feeding mechanism, and said board being inclined in a direction to bring its
lower edge towards the incoming grain thereby permitting the surplus grain to
pass upwardly and to be held thereon until properly fed, cutting mechanism
carried at the lower edge of the board, and means for actuating the cutting
mechanism.
2. The combination, of a frame adapted for attachment to a thrashing machine,
feeding mechanism mounted in said frame, an inclined board mounted above the
feeding mechanism, cutting blades carried at the lower edge of the board,
a bar running lengthwise of the board, a rotatable shaft, a connection between
said shaft and the bar, whereby the bar is reciprocated, a rock shaft having a
crank connection at one end of the bar and a double crank connection at the oppo-
site end with the two cutting blades, whereby said blades are reciprocated in
opposite directions, substantially as described.
3. The combination, of a frame adapted for attachment to a thrashing machine,
feeding mechanisms, oppositely inclined boards mounted above the feeding
mechanisms, cutting blades carried at the lower edges of the boards, a bar running
lengthwise of each board, a rotatable shaft, a connection between the shaft and the
bar, whereby the bar is reciprocated, rock shafts each having a crank connection
at one end of the bar, and a double crank connection at the opposite end with the
cutting blades, whereby said blades are reciprocated in onnosite directions, sub-
stantially as described.
4. The combination, of a frame adapted for attachment to a thrashing machine,
feeding mechanism mounted in said frame, an inclined board mounted above the
feeding mechanism, a screw shaft held against longitudinal movement, and
provided with right and left hand threads, a rod running lengthwise of the board,
and straps each secured at one end to the board and having its opposite end bearing
against the rod, said straps provided with threaded collars through which the
screw shaft passes, the threads of one collar corresponding to the right hand threads
of the shaft, and the threads of the other collar corresponding to the left hand
threads of the shaft, substantially as described.
5. The combination, of a frame adapted for attachment to a thrashing machine,
a driven shaft mounted in said frame and receiving motion from the actuating
mechanism of the thrashing machine, said shaft having a cranked end, an upper
shaft having a beveled gear thereon, a connection between the two shafts for
imparting rotation to the upper one thereof, rolls journalled in the frame, the shaft
of the inner roll provided with a beveled gear meshing with the previously men-
tioned beveled gear, a belt passing over the rolls, an inclined board mounted above
the belt, cutting blades carried at the lower edge of said board, a bar running
lengthwise of the board, a connection between one end of said bar and the crank
of the driven shaft, and a rock shaft running along the end edge of the board,
said shaft having a crank connection at one end with the bar, and a double crank
connection at the opposite end with the cutting blades, whereby said blades are
reciprocated in opposite directions, substantially as described.
A
1
1007
F. W. BARKER,
Applicants' Agent.