Improvements in Harvesting Machines.
Year: 1889

page_text: Date of Application, 31st Aug., 1889
Complete Specification Left, 2nd June, 1890-Accepted, 19th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in Harvesting Machines.
We, JAMES HORNSBY, JOHN INNOCENT, and ISAAC TROLLEY, all of Spittlegate Iron
Works, Grantham, in the County of Lincoln, Engineers, (partly a communication to
us from abroad by Noxon Brothers Manufacturing Company Limited, Ingersoll,
Canada, and partly invention or discovery made by ourselves,) do hereby declare the
nature of this invention to be as follows:-
We make the gear frame of a single bar bent into a rectangle and encircling the
main road wheel. The two ends are bent parallel to each other and project outwards
at one corner being secured to cach other by bolts. The bearings supporting the
axle of the main drive wheel may either be fixed to the frame or may move up or
down in suitable guides upon it. The rear side of the frame is of sufficient length to
carry the bearings or brackets carrying the bearings of the spindle or spindles
operating the various parts of the machine thus making a rigid support for these
bearings.
The bracket supporting the bearing of the first motion spindle is of an angular
form so that it can be bolted both to the side and back of the main frame thus giving
a very rigid bearing.
The front bearing for carrying the spindle operating the knife is mounted on the
front corner of the frame and is similarly supported on its side and front. The back
bearing carrying this spindle is mounted on the projecting ends of the bar forming
the main frame.
The finger bar and cutting apparatus are attached to a bracket secured to the inner
side and front of the frame.
The back framing of the platform and the side of the divider are made in one piece
of angle shaped steel whose back end is secured to a bracket fixed to the inner back
corner of the main frame.
The draft pole is attached to the bracket connecting the finger bar and cutting
apparatus to the front part of the main frame.
The divider wheel axle bracket is jointed to a saddle shaped bracket embracing the
angle shaped steel bar on the divider side and is back part is a toothed quadrant
and the angle shaped bar carries a spring bolt which enters between the teeth of the
quadrant so that the height of the bar from the ground can be adjusted.
The front part of the elevator frame is carried by a bracket attached to the bracket
connecting the cutting apparatus to the main frame and mounted above and clear of
the cutting apparatus which is a great advantage.
In place of making all four sides of the main frame of a single bar three sides
only may be made in this way whilst the fourth is in a separate piece. Thus the
fourth side may be the outer side and consist of a long bracket carrying both bearings
of the first motion shaft or it may be the front side and carry the cutting apparatus
and the front bearing of the first motion shaft or it may form the back and be
prolonged to support the rear of the platform on one side and the rear bearing of the
first motion shaft on the other.
This invention also relates to the mechanism which grips and feeds forward the
string whilst the knot is being tied and to the means for driving the knotter the
remainder of the sheaf binding mechanism and the knotter itself being of ordinary
construction.
The retaining apparatus consists of a short cylinder having an overhanging flange
the cylinder and flange being notched in three places. The cylinder is mounted
upon a toothed pinion which gears once in every revolution of the main shaft of the

page_text: sheaf binding mechanism with teeth projecting from the face of a disc fixed to
the shaft.
The teeth on the disc do not form a complete ring but there is only a sufficient
number of them to give the notched cylinder one third of a revolution for every
revolution of the shaft.
Surrounding part of the notched cylinder and fitting under its flange is a spring
presser which carries extensions covering the notches when the cylinder is in certain
positions. The string from its cut end passes round the outside of the cylinder and
is held between it and the spring presser and is prevented from escaping sideways
by the flange on the cylinder. Thence the string passes through one of the notches
(say notch No. 1) and back across the cylinder to the needle. When a sheaf is being
hound the needle brings the string around it in the usual manner and then lays the
string across the cylinder side by side with the string already there. As the machine
continues to move the teeth upon the disc gear with those upon the pinion carrying
the cylinder and cause the latter to perform a third of a revolution. During this
process both strings being in notch No. 1 are brought beneath the string presser and
are prevented from escaping whilst the rotation of the cylinder feeds them forward to
the knotter.
When the cylinder has finished the third of a revolution its notches are uncovered
and that portion of the string which was next the free end (now tied) escapes from
beneath the presser whilst the other string which is now next the free end (by reason
of the string having been cut) still lies beneath the presser and as the needle returns
is laid into notch No. 2 leaving the parts in the original position ready to bind
another sheaf.
In order to give the cylinder a better hold upon the string we make radial slots or
saw cuts through its sides. This method of holding the string is applicable to other
similar grippers.
The spindle carrying the knotter runs in a tube pivotted to the frame. The upper
end of the spindle carries a pinion which gears with teeth upon the disc fixed to the
shaft so that once in every revolution of the shaft the teeth come into gear with the
pinion on the knotter spindle and give it one complete revolution. The spindle
carries a lock plate which bears upon a cam surface upon the disc and prevents the
spindle from turning but the cam is cut away at the place where the teeth come into
gear so that the spindle can then turn. The cam also is so shaped that the knotter is
given the necessary lateral movement.
It is usual to drive the knotter spindle by means of gear wheels and to have the
trip mechanism (which throws the knotting mechanism into gear when a sheaf has
been collected) in front of the machine.
According to this invention we drive the knotter spindle by a chain and we arrange
the trip mechanism at the back of the machine and on the inside so that it is out
of the way.
The chain works upon chain wheels on the knotter spindle and an intermediate
spindle which latter also has fixed to it a toothed pinion gearing with a toothed pinion
mounted loose upon the packer crank shaft. This loose pinion carries eccentrically a
spring bolt which is normally held out of position as hereinafter described but which
when a sheaf has been collected is released and then comes into the path of one or
other of two lugs carried by a disc fixed to the packer crank shaft so that the
loose pinion now revolves with the packer crank shaft and drives the tying
mechanism.
The spring bolt is held out of action by coming against one arm of a bell crank
lever whose other arm has two transverse slots in it. One of these slots receives the
end of a link whose other end is pivotted to the needle so that as the needle moves
back after the knot has been tied the bell crank lever is pushed into the path of the
spring bolt and the tying mechanism is thrown out of gear. The other slot receives
the end of a link whose other end is pivotted to one arm of a second bell crank lever
whose other arm is pivotted to one end of a connecting rod whose other end is

page_text: pivotted to a lever against which the sheaf bears. When the sheaf has attained the
proper size it moves this lever and through it the second and first mentioned bell
crank levers withdrawing the latter out of the way of the spring stop which thereupon
projects into the path of the lugs upon the disc fixed to the packer crank shaft and
thereby sets the tying mechanism in motion.
נימה
1
1000
JAMES HORNSBY.
JOHN INNOCENT.
I. TROLLEY.
COMPLETE SPECIFICATION.
Improvements in Harvesting Machines.
We, JAMES HORNSBY, JOHN INNOCENT, and ISAAC TROLLEY all of Spittlegate Iron
Works, Grantham in the County of Lincoln, Engineers (partly a communication
to us from abroad by Noxon Brothers, Manufacturing Company, Limited, Ingersoll,
Canada, and partly Invention or discovery made by ourselves) do hereby declare the
nature of this Invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
This Invention has for its object improvements in harvesting machines.
Figure 1 is a back elevation and Figure 2 a plan of a machine constructed according
to our Invention. For clearness many of the parts are omitted.
Figures 3 to 8 represent the gear frame and parts connected therewith in various
forms.
We make the gear frame of a bar 1 bent into a rectangle and encircling the main
road wheel 2. The two ends are bent parallel to each other and project outwards at
one corner being secured to each other by bolts, see Figures 2. 3, 4 and 4*. The
bearings supporting the axle 3 of the main drive wheel 2 may either be fixed to the
frame or may move up or down in suitable guides 4 (see Figure 1) upon it. The
rear side of the frame is of sufficient length to carry the bearings or brackets carrying
the bearings of the spindle or spindles operating the various parts of the machine
thus making a rigid support for these bearings. Figures 3 show the frame and
brackets before they are put together and Figure 4 the combined arrangement.
The bracket 5 supporting the bearing of the first motion spindle is of an angular
form so that it can be bolted both to the side and back of the main frame thus giving
a very rigid bearing. The bracket 5 may form the back of the main frame as is shown
in Figure 4*.
The front bearing 6 for carrying the spindle operating the knife is mounted on the
front corner of the frame and is similarly supported on its side and front. The back
bearing 7 carrying this spindle is mounted on the projecting ends of the bar forming
the main frame.
The finger bar and cutting apparatus are attached to a bracket 8 secured to the
inner side and front of the frame.
The back framing of the platform and the side of the divider are made in one
piece of angle shaped steel 9 whose back end is secured to a bracket 10 fixed to the
inner back corner of the inain frame.
The draft pole 11 is attached to the bracket S connecting the finger bar and cutting
apparatus to the front part of the main frame.
The divider wheel axle bracket 12 is jointed to a saddle shaped bracket 13 embracing
the angle shaped steel bar 9 on the divider side and its back part is a toothed quadrant
and the angle shaped bar carries a spring bolt which enters between the teeth of the
quadrant so that the height of the bar from the ground can be adjusted.
The front part of the elevator frame o is carried by a bracket attached to the
bracket 8 connecting the cutting apparatus to the main frame and mounted above and
clear of the cutting apparatus which is a great advantage.
In place of making all four sides of the main frame of a single bar three sides only

page_text: may be made in this way whilst the fourth is in a separate piece. Thus the fourth
side may be the outer side and consist of a long bracket carrying both bearings of the
first motion shaft or it may be the front side as shown in Figures 5 and 6 or it may
form the back as shown in Figures 7 and 8 and be prolonged to support the rear of
the platform on one side and the rear bearing of the first motion shaft on the other.
This invention also relates to the mechanism which grips and feeds forward the
string whilst the knot is being tied and to the means for driving the knotter the
remainder of the sheaf binding mechanism and the knotter itself being of ordinary
construction.
Our arrangements are shewn in perspective in Figures 9 and 10 and detached views
of some of the parts at Figures 11.
Figures 12, 13 and 14 show successive positions which the tying or knotting
mechanism assumes. Figures 12ª, 13 and 14" show sectional views of the string
gripper in corresponding successive positions.
The retaining apparatus consists of a short cylinder 14 having an overhanging
Hange 15 the cylinder and flange being notched in three places 16, 16', 16". The
cylinder is mounted upon a toothed pinion 17 which gears once in every revolution of
the main shaft 18 of the sheaf binding mechanism with teeth 19 projecting from the
face of a disc 20 fixed to the shaft.
The teeth 19 on the disc 20 do not form a complete ring but there is only a
sufficient number of them to give the notched cylinder 14 one third of a revolution for
every revolution of the shaft 18.
Surrounding part of the notched cylinder and fitting under its flange is a spring
presser 21 which carries extensions 22 covering the notches when the cylinder is in
certain positions. When the parts are in the position shown in the diagram
view Figure 12 the string 23. from its cut end passes round the outside of the
cylinder 14 and is held between it and the spring presser 21 and is prevented from
escaping sideways by the flange 15 on the cylinder 14. Thence the string passes
through one of the notches (say 16) and back across the cylinder 14 to the needle 24.
When a sheaf is being bound the needle 24 brings the string 23 around it in the
usual manner and then lays the string across the cylinder 14 side by side with the
string already there. This position is shewn in the diagram view Figure 13. As
the machine continues to move the teeth 19 upon the disc 20 gear with those upon
the pinion 17 carrying the cylinder 14 and cause the latter to perform a third of a
revolution. During this process both strings being in notch 16 are brought beneath
the spring pressure 21 and are prevented from escaping whilst the rotation of the
cylinder feeds them forward to the knotter 25 which being of ordinary construction
requires no description. This position of the parts is shown in the diagram Figure 1+.
When the cylinder 14 has finished the third of a revolution its notches are uncovered
and that portion of the string which was next the free end (now tied) escapes from
beneath the presser 21 whilst the other string which is now next the free end (by
reason of the string having been cut) still lies beneath the presser and as the needle
returns is laid into notch 16' leaving the parts in the original position as shown
in Figure 12 (except that the notch 16' has replaced 16) ready to bind another
sheaf.
In order to give the cylinder 14 a better hold upon the
countersinks or radial slots or saw cuts through its sides.
string is applicable to other similar grippers.
string we sometimes make
This method of holding the
The spindle 26 carrying the knotter 25 runs in a tube 27 pivotted at 28 to the
frame. The upper end of the spindle 26 carries a pinion 29 which gears with teeth 30
upon the disc 20 fixed to the shaft 18 so that once in every revolution of the shaft the
teeth come into gear with the pinion 29 on the knotter spindle and give it one complete
revolution. The spindle 26 carries a lock plate 31 which bears upon a cam surface 32
upon the disc and prevents the spindle from turning but the cami is cut away at the
place where the teeth come into gear so that the spindle can then turn. The cam also
is so shaped that the knotter is given the necessary lateral movement.
It is usual to drive the main shaft 18 of the sheaf binding mechanism by means of

page_text: gear wheels and to have the trip mechanism (which throws the binding mechanism
into gear when a sheaf has been collected) in front of the machine.
According to this invention we drive the shaft 18 by a chain and we arrange the
trip mechanism at the back of the machine and on the inside so that it is out of the
way. This arrangement is shewn at figures 15 to 20.
Figure 15 is
side elevation shewing the driving mechanism by which the sheaf
tying or knotting mechanism is actuated, in its place upon the machine.
Figure 16 is a plan of the driving mechanism to a larger scale.
Figures 17 and 18 are end elevations of the driving mechanism.
Figures 19 and 20 show a portion of this mechanism viz. the tripping device and
parts connected therewith to a still larger scale and in different positions.
The chain 33 works upon chain wheels 34, 35 and 36, the wheel 34 being on the
shaft 18, the wheel 35 being a guide wheel and the wheel 36 being on an intermediate
spindle 37 which latter also has fixed to it a toothed pinion 38 gearing with a toothed
pinion 39 mounted loose upon the packer crank shaft 40. This loose pinion carries
upon an eccentrically placed pin or axis a bolt or locking lever 41 which is normally
held out of position as hereinafter described but which when a sheaf has been collected
is released and then is pressed forward by a spring and its lower end (see Fig. 20)
comes into the path of one or other of two roller lugs 42 carried by a disc 43 fixed to
the packer crank shaft 40 so that the loose pinion 39 now revolves with the packer
crank shaft 40 and drives the tying mechanism.
The spring bolt 41 is held out of action until required by coming against one arm
of a bell crank lever 44 pivotted at 45 whose other arm has two transverse slots 46, 47
in it. One of these slots receives the end of a link 48 whose other end is pivotted to
an arm on the axis 49 of the needle so that as the needle moves back after the knot
has been tied the bell crank lever 44 is pushed into the path of the spring bolt and the
tying mechanism is thrown out of gear. The other slot 47 receives the end of a link 50
whose other end is pivotted to one arm of a second bell crank lever 51 whose other
arm is pivotted to one end of a connecting rod 52 whose other end is pivotted to a
lever 53 against which the sheaf bears. When the sheaf has attained the proper size
it moves this lever 53 and through it the bell crank levers 51 and 44 withdrawing the
latter out of the way of the spring stop lever 41 which thereupon projects into the
path of the lugs 42 upon the disc 43 fixed to the packer crank shaft 40 and thereby
sets the tying mechanisin in motion.
The needle 24 is operated by the crank 54 upon its axis which is connected by the
rod 55 to the crank 56 upon the wheel 34. The arm 57 for ejecting the bound sheaf
is carried by a shaft 58. The other end of the shaft 58 carries an arm 59 to whose
end is pivotted a rod 60 carrying a disc 61 which bears against one end of a spring 62
in the box 63. The end of the box 63 is pivotted to one arm of the bell crank lever 64
whose other arm carries a roller (5 which runs upon the semicircular cam 66 upon
the wheel 34. The rotation of the cam at the time of tying allows the arm 57 to drop
down so that the bound sheaf may roll over it and fall away out of the machine; the
arm afterwards rises again into position to retain the next sheaf until the time comes
for it to be delivered. The spring 62 is provided to prevent breakage in case a sheaf
fails to be delivered at the proper time.
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. A gear frame formed with a bar bent into a rectangle and encircling the main
road wheel substantially as described.
2. The gear frames with the brackets and bearings thereon substantially as
described.
3. The combination with the gear frame of a curved bar forming the back frame
of the platform and the side of the divider substantially as described.
4. The combination with the gear frame of a bracket 8 carrying the finger bar and
cutting apparatus substantially as described.

page_text: 5. The attachment of the draft pole to the gear frame by means of the bracket 8
substantially as described.
6. The method of mounting the divider wheel; the axle of the same being carried
upon an arm jointed to a saddle piece on the bar 9 substantially as described.
7. The method of supporting the elevator frame; by a bracket connecting the front
part thereof with the bracket 8 substantially as described.
8. The combination in a sheaf tying mechanism of string gripping apparatus
substantially as herein described with an oscillating and rotating knotter.
9. Sheaf tying or knotting mechanism substantially as described and represented by
the annexed drawings.
10. The gear actuating the sheaf tying or knotting mechanism substantially as
described and represented by the annexed drawings.
Dated this 2nd day of June 1890.
CARPMAEL & Co.,
Agents for the Applicants.