Improvements in Harvesting Machines.
Year: 1891

page_text: Date of Application, 8th Oct., 1891
Complete Specification Left, 7th July, 1892-Accepted, 13th Aug.; 1892
PROVISIONAL SPECIFICATION.
Improvements in Harvesting Machines.
We, JAMES HORNSBY, JOHN INNOCENT, and ISAAC TROLLEY, all of Spittle-
gate Iron Works, Grantham in the County of Lincoln, Engineers, do hereby
declare the nature of this invention to be as follows:-
We construct the main road or drive wheels in the following manner :-we make
the drive gear and bush in one piece whilst the tyre is bent up from a length cut
from a rolled plate of steel having preferably two continuous ribs formed on its
inner surface. The ends of this plate are butted together and connected by being..
rivetted to a plate on the inside. The spokes consist simply of straight bars of
steel whose outer ends fit into holes bored in the ribs on the inner face of the tyre
whilst the inner ends of every other of the spokes fit into sockets or pockets in the
casting forming the bush and drive gear and the inner ends of the remainder fit
into similar sockets or pockets in a sleeve which fits and slides upon the bush. The
wheel is completed by drawing the inner ends of the two sets of spokes towards
each other by screwing up bolts connecting the sleeve to the bush.
In open backed machines with the driving mechanism in front we drive the reel
from a worm fixed at the end of the elevator or conveyer roll and gearing with a
worm wheel mounted at the front of the machine. Upon the axis of the worm
wheel is fixed a chain wheel upon the axis of the double jointed frame carrying
the reel. The chain from this chain wheel drives a second chain wheel upon the
middle axis of the double jointed frame. Upon the same axis is a third chain
wheel fixed to the second which by a chain drives 'a chain wheel' fixed upon the
outer or reel axis of the double jointed frame. At the front end we reduce the
diameter of the conveyer roll to allow the refuse to pass away.
In order to shift the binding mechanism backwards and forwards to adjust the
position of the band upon the sheaf we mount at the front of the machine an axis
carrying at each end a crank. One of these cranks is connected by a rod to a lever
on the footboard placed side by side with the two levers for altering the position of
the reel, whilst the other crank is connected by a ród''to the binding mechanism.
-
We support the footboard by means of a bar connected to the framing. of the
machine near the inner end of the cutter bar then passing diagonally backwards
and-attached to 'the longitudinal bar of the gear frame next the road wheel, at
which point it is bent sideways and then runs diagonally backwards and is fixed to
the frame near the rear end of the platform. It is then bent upwards and its rear
end fixed to the under side of the foot board. The bar therefore not only forms 'a
diagonal stay for the gear frame but also a support for the foot board.
Instead of placing the mechanism for operating the knotting mechanism at the
front of the machine as is usual we place it at the rear end of the binder, mounting
the shipping pinion on the packer crank shaft. This shaft is driven by a chain.
wheel at the rear of the machine through a square shaft which enters a square hole
at its rear. The shipping pinion carries the usual driving pawl which intermit-
tently comes into the path of the driver the latter being also in this case mounted
on the packer crank shaft. The shipping pinion gears with a spur pinion upon the
rear end of a longitudinal shaft having fixed to its front end a chain wheel which
by a chain drives another chain wheel carrying a crank pin to which is pivotted the
connecting rod for giving motion to the needle axis. The usual trip lever which,
holds the driving pawl out of the way of the driver until a sufficiently large sheaf
has been collected is mounted on a sleeve on the needle axis, but in place of being.
solid as is usual its outer end is made telescopic and is forced-outwards by a spring.

page_text: When the driving pawl is first arrested by this lever the spring is compressed but
as soon as the pawl is out of gear with the driver the spring forces it backwards and
so ensures its being kept completely out of gear until again released.
In order to ensure that the trip lever is kept out of the way of the driving pawl
whilst the sheaf is being tied we form a cam on the boss of the needle and when
the needle begins to turn this cam comes against a crank upon a longitudinal axis
causing the axis to turn and so move a second crank fixed to its other end which
enters a recess in the boss of the trip lever so that when the crank axis is turned
by the motion of the needle the trip fever is turned with it and held out of the way
until the needle returns.
We employ three methods (which may be used either separately or together) of
actuating the trip lever. First we make part of the table on which the cut crop is
received of a board hinged at its upper end whilst its lower end rests upon and is
supported by the other end of the trip lever to that having the spring. As the cut
crop collects it forces the board and with it the trip lever downwards against an
adjustable spring and ultimately causes the lever to turn sufficiently to free the
driving pawl and set the tying mechanism in operation.
The above mentioned crank axis is utilised for the second arrangement of trip
mechanism. For this purpose it has fixed to it a third lever supporting the lower
end of a board forming part of the table and whose upper end is pivotted. As the
cut crop collects on the table this board is pressed down causing the axis to turn
and actuate the trip lever. The third arrangement of trip mechanism is similar to
that ordinarily employed consisting of an arm or arms upon a lever at the lower
end of the table against which the cut crop is pressed more and more as it is
collected by the packers. The connection of this lever with the compressor spring
is however somewhat different to that usually adopted. We form a slot in the lever
to receive a pin upon a crank fixed to a longitudinal spindle whose other end carries
a second crank connected to the compressor spring.
Dated this 7th day of October 1891.
JAMES HORNSBY.
JOHN INNOCENT.
ISAAC TROLLEY.
COMPLETE SPECIFICATION.
Improvements in Harvesting Machines.
We, JAMES HORNSBY, JOHN INNOCENT, and ISAAC TROLLEY, all of Spittle-
gate Iron Works, Grantham, in the County of Lincoln, Engineers, 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 :-
We construct the main road or drive wheels in the manner shewn in Figures 1
and 2, Figure 1 being a side elevation and Figure 2 a vertical transverse section.
We make the drive gear 1 and bush 2 in one piece whilst the tyre 3 is bent up
from a length cut from a rolled plate of steel having preferably two continuous
ribs + formed on its inner surface. The ends of this plate are butted together and
connected by being rivetted to a plate on the inside. The spokes 6 consist simply
of straight bars of steel whose outer ends fit into holes bored in the ribs 4 on the
inner face of the tyre 3 whilst the inner ends of every other of the spokes fit into
sockets or pockets in the casting forming the bush 2 and drive gear 1 and the
inner ends of the remainder fit into similar sockets or pockets in a sleeve 6 which
fits and slides upon the bush being prevented from turning by a groove and feather.
The wheel is completed by drawing the inner ends of the two sets of spokes
towards each other by screwing up bolts 7 connecting the sleeve to the bush.
In place of the tyre 3 having two continuous ribs rolled upon it, it may consist
simply of a plate to which are bolted brackets or sockets 8 to receive the ends of
the spokes as shewn in Figures 3.

page_text: In
open backed machines with the driving mechanism in front we drive the reel
from a worm fixed at the end of the elevator or conveyor roll and gearing with a
worm wheel mounted at the front of the machine.
Figure 4 is a side elevation of the arrangement, Figure 5 a front elevation partly
in section and Figure 6 is a plan. 9 is the elevator roll having fixed at its end the
worn 10 gearing with the worm wheel 11 whose axis 12 has fixed to it a chain
wheel 13 and works inside the inner axis 14 of the double jointed frame 15 carrying
the reel. The chain 16 from the chain wheel 13 drives a second chain wheel 17
upon the middle axis 18 of the double jointed frame 15. Upon the same axis 18
is a third chain wheel 19 fixed to the second 17 which by a chain 20 drives a
chain wheel 21 fixed upon the outer or reel axis 22 of the double jointed frame 15.
At the front end we reduce the diameter of the conveyer roll to allow the refuse to
pass away.
In order to shift the binding mechanism backwards and forwards to adjust the
position of the band upon the sheaf we adopt the arrangement shewn in side eleva-
tion at Figure 7 and in front elevation (partly in section) at Figure 8. We mount
at the front of the machine an axis 23 carrying at each end a crank. One of these
cranks 24 is connected by a rod 25 to a lever 26 (on the footboard 28) placed side
by side with the two levers for altering the position of the reel, whilst the other
crank 29 is connected by a connecting rod to one end of the binder frame 30.
We support the footboard 28 by means of a bar 31 shewn in plan at Figure 9
connected to the framing 32 of the machine near the inner end of the cutter bar 33
then passing diagonally backwards and attached to the longitudinal bar 34 of the
gear frame next the road wheel, at which point it is bent sideways and then runs
diagonally backwards and is fixed to the frame at 35 near the rear end of the
platform. It is then bent upwards and its rear end fixed to the under side of the
footboard 28. The bar therefore not only forms a diagonal stay for the gear frame
but also a support for the footboard.
Instead of placing the mechanism for operating the knotting mechanism at the
front of the machine as is usual we place it at the rear end of the binder, mounting
the shipping pinion on the packer crank shaft. This arrangement is shewn in
front elevation at Figure 10, in perspective (from the rear) at Figure 11 and in
plan at Figure 12, Figure 12ª being a sectional plan of a detail and forming
a continuation of Figure 12. Figures 13 to 19 shew the details of the trip
mechanism. The shipping pinion 36 on the packer crank shaft 37 is driven by a
chain wheel at the rear of the machine through a square shaft which enters a
square hole 39 (Figure 11) at its rear. The shipping pinion 36 carries the usual
driving pawl 40 which intermittently comes into the path of the driver 41 the
latter being also in this case mounted on the packer crank shaft 37. The shipping
pinion 36 gears with a spur pinion 42 upon the rear end of a longitudinal shaft 43
having fixed to its front end (Figures 10 and 12^) a chain wheel 44 which by a
chain 45 drives another chain wheel 46 carrying a crank pin 47 to which is pivotted
the connecting rod 48 for giving motion to the needle axis 49. The usual trip
lever 50 which holds the driving pawl 40 out of the way of the driver 41 until a
sufficiently large sheaf has been collected; is mounted on a sleeve 51 on the
needle axis 49 but in place of being solid as is usual its outer end is made telescopic
and is forced outwards by a spring 52. When the driving pawl 40 is first arrested
by the lever 50 the spring 52 is compressed but as soon as the pawl 40 is out of
gear with the driver 41 the spring forces it backwards and so ensures its being kept
completely out of gear until again released.
In place of the spring 52 being upon the trip lever 50 it may be upon the
driving pawl 40 as shewn in Figures 18 and 19. In either case the effect is to
prevent backlash in the following manner-At Figure 124 is shewn the stop
pawl 53 one end of which is pivotted, the other being held in position by the spring 54.
The chain wheel 44 travels in the direction of the arrow and the projection on it
against which the pawl 53 comes is allowed to go a short distance past the end of
the pawl (as a margin of safety) so that the pawl shall always be certain to be in.

page_text: position when the binding mechanism stops. When the driving pawl 40 strikes
the end of the trip lever..0 the spring 52 is compressed-at that point the stop
pawl 53 goes into position and then by the reaction of the spring 52 the driving
pawl 40 is pushed back and so the slack of the spur wheels 36 and 42 is taken up
and all the gear is thrust tight home against the stop pawl 53.
In order to ensure that the trip lever 50 is kept out of the way of the driving
pawl 40 whilst the sheaf is being tied we form à cam 55 on the boss 56 of the
needle 57 and when the needle begins to turn this cam comes against a crank 58
upon a longitudinal axis 59 causing the axis to turn and so move a second erank 60
fixed to its other end which bears against a projection 61 on the boss of the trip
lever 50 (Figure 13) so that when the crank axis 59 is turned by the motion of the
needle the trip lever is turned with it and held out of the way until the needle
returns.
We employ three methods (which may be used either separately or together) of
actuating the trip lever 50.
Figure 13 is a rear sectional elevation shewing the first method the parts being
in the positions they assume after tripping and Figure 14 is a sectional front
elevation before tripping. We make part of the table on which the cut crop is
received of a board 62 hinged at its upper end at 63 (Figure 10) whilst its lower
end rests upon and is supported by the other end of the trip lever 50 to that having
the spring 52. As the cut crop collects it forces the board 62 and with it the trip
lever 50 downwards against a spring 64 adjustable by the thumb nut 65 and
ultimately causes the lever 50 to turn sufficiently to free the driving pawl 40 and
set the tying mechanism in operation.
The above mentioned crank axis 59 is utilised for the second arrangement of trip
mechanism. This arrangement is shewn in front sectional elevation at Figure 15.
For this purpose it has fixed to it a third lever 66 supporting the lower end of a
board 67 forming part of the table and whose upper end is pivotted similarly to the
board 62. As the cut crop collects on the table the board 67 is pressed down
causing the axis 59 to turn and actuate the trip lever 50. The nut 68 serves to
adjust this trip. Figure 15 also shews that both trips can be actuated by a single
board 67 in place of the two boards 62 and 67. The third arrangement is shown
untripped in front sectional elevation at Figure 16 and tripped at Figure 17. The
trip mechanism is similar to that ordinarily employed consisting of an arm or
arms 69 upon a lever 70 at the lower end of the table against which the cut crop is
pressed more and more as it is collecte! by the packers. The connection of this
lever with the compressor spring is however somewhat different to that usually
adopted. We form a slot in the lever 70 to receive a pin 71 upon a crank 72 fixed
to a longitudinal spindle 73 whose other end carries a second crank 74 (Figure 10)
connected to the compressor spring 75.
The arm 69 may be pivotted to the lever 70 and its tail end may actuate a
lever 76 fixed to the axis 59.
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 tyre of the main road or drive wheel made from a plate of metal having
one or more ribs on its inner surface bored with holes to receive the ends of the
spokes substantially as described.
2. The combination of the tyre referred to in Claim 1 the bush, a sleeve upon
the bush, holės or recesses in the bush and sleeve to receive the inner ends of
the spokes and means for drawing the sleeve onto the bush substantially as
described.
3. Wheels- substantially as described and shewn at Figures 1 to 3 of the
drawings.
4. The combination of a worm at the end of one of the elevator or conveyor
rolls, a worm wheel upon a shaft co-axial with the inner axis of the double jointed

page_text: frame carrying the reel and means for transmitting motion from the shaft to the
reel substantially as described.
5. The gearing for driving the reel substantially as described and shewn in
Figures 4, 5 and 6 of the drawings.
6. The apparatus for shifting the binding mechanism backwards and forwards
substantially as described and shewn at Figures 7 and 8 of the drawings.
7. The bar 31 with its connections substantially as described and shewn in
Figures 7, 8 and 9 of the drawings.
8. In gearing for driving the sheaf binding mechanism of harvesting machines
mounting the shipping pinion and the driver upon the packer crank shaft substan-
tially as described.
9. Gearing for driving the sheaf binding mechanism of harvesting machines
substantially as described and shewn at Figures 10, 11, 12 and 12 of the
drawings.
10. The yielding trip lever or driving pawl for preventing backlash substan-
tially as described.
11. The cam on the needle shaft for holding the trip lever out of the way of
the driving pawl substantially as described.
12. The mechanism for actuating the trip lever substantially as described and
shewn at Figures 10 to 17 of the drawings.
13. Harvesting machines substantially as described and shewn in the drawings.
Dated this 27th day of June 1892.
JAMES HORNSBY.
JOHN INNOCENT.
I. TROLLEY.