Year: 1887

page_text: Date of Application, 30th Apr., 1887
Complete Left, 6th Jan., 1888
Complete Accepted, 17th Feb., 1888
I, GEORGE FREDERICK REDFERN, of the General Patent Office, No. 4, South Street'
Finsbury, in the county of Middlesex, Patent Agent do hereby declare the nature of
this invention (a communication from abroad by Byron Eugene Huntley of Brock-
port, State of New York, United States of America, Manufacturer.) to be as
follows:
This invention relates to improvements in self-binding harvesters in which a
revolving canvas of the usual construction is located rearwardly of the finger-bar
and operated in conjunction with the ordinary elevating canvas by means of which
the grain is carried over the driving wheel and brought within reach of the binding
mechanism which may be of any well known type such for instance as the "Appleby;"
the object of the improvements is mainly the substitution of metal for wood the frame
being composed of metallic channelled bars, preferably of steel, square in section, and
bent into the required shape, the parts being secured together by means of bolts
and intervening channel plate clips made conformably with the shape of the channelled
bars and by means of which the impinging parts are interlocked one with the other,
also a simple and effective method is provided of independently raising and lowering
the ends of the machine upon its two bearing wheels.
In the manufacture of metal frame harvesters, a difficulty has been found in securing
the necessary rigidity without materially adding to the weight of the machine. It is
well known that where shafting is used for operating the mechanism, the several
bearings must at all times be kept in line or there will not only be undue friction
but the bearings will become rapidly worn thus impairing the usefulness; this is
especially the case in agricultural machinery that passes over uneven ground.
To remedy these defects in metal-bar machines this channelled steel frame has been
devised. It is well known that solid metal bars have been heretofore used for forming
harvester frames, also frames have been made of tubular-iron, angle-iron &c. But
it is believed that channelled steel bars have not been previously used of the form
described whereby great rigidity and strength is combined with lightness of material.
In the platform frame, the finger-bar forins the front portion, the end bar and the

page_text: rear bar are made of channelled steel, while the finger-bar is of the well known
construction having the guard fingers secured to an angle-bar, the back vertical part
of which is of a width to correspond with the thickness of the end bar and is secured
thereto by a corner bracket or in any known manner. The rear grain-end corners
of these bars forming the platform-frame are secured together by a bracket which
supports the rear end of the crank rod to the inner end of which is attached a snail-
cam, the operation of which will be hereinafter explained. The bracket is provided
with foot-pieces which form an angle bar one leg of which is bolted to the end-bar
and the other to the rear-bar by means of which the two bars are firmly united.
The rear bar of the gear-frame and the front bar of the same are connected by
cross-bars one being upon the outside of the ground wheel and the other upon the
inside of the same; but leaving sufficient space between the bars to allow the wheel
and driving mechanism to turn therein. This gear-frame
upon a higher horizontal
plane than the platform-frame, the two frames being secured together as follows:
The rear bar of the gear-frame extends inwardly past and above the end of the rear
bar of the platform-frame, the latter being bent upwards sufficiently far to reach the
underside of the former, less the thickness of a flanged and channelled clip-plate which
is interposed between the two bars. This clip-plate has flanges or lips upon each
side which lap over the edges of the solid portion of the bar while the lower edges
of the adjoining bar rest within the channels thus securely uniting the parts and
preventing lateral displacement. Clip-plates to be used upon the channelled edges
alone are provided with a securing bolt passing through a hole. A bracket carries
the bearing box which supports one end of the canvas roller which is also provided
with channelled ends conformable with the edge of the bars against which the said
ends abut, a bolt passing through each bar as well as the bracket and by this means
firmly securing the parts together. A rear bent channel bar forms the end support
of the elevator frame while a duplicate bar serves a similar purpose at the front end
of the said frame. These bars are both channelled whereby strength is afforded with
lightness. The outer ends of these bars rest upon the top side of the rear and front
bars of the gear frame while the inner ends stop short of the said bars and abut
against a flange upon the-seat-plank-standards and are securely bolted thereto the
foot of the said standards being secured to the back and front bars of the gear-frame.
Above the cross-bars and running parallel therewith are other channelled bars, one
of which is upon the outside and the other inwardly placed with the ends of the said
bars resting upon posts which have channels in their ends corresponding to the form
of the bars against which they impinge. The post supporting the rear end of one of
the bars last described is provided with bolt holes through each end (the post being
a shell). Bolt holes are also formed through the said bar, through one of the cross
bars and through the rear bar of the gear frame the holes forming a passage way
for a securing-bolt whereby in connection with the intervening clip-plates the parts
are securely fastened together.
The other posts are formed in a similar manner except that they are made to
conform upon their inner edges with the rear and front bent-bars and are secured
thereto in such manner that all the bars together with the posts are firmly united so
that they can serve the purpose for which they are intended. To the rear post is
secured the bearing of an operating shaft while upon the rear face of the said post
is pivotted a worm wheel shaft securing hook. This worm wheel shaft carries upon
its inner end a worm wheel which acts in combination with another worm-gear loosely
mounted upon a cross shaft. This worm gear has attached to it and turning there-
with a sprocket wheel carrying a sprocket chain which encircles another sprocket
wheel fixed to the ground wheel journal (upon which the ground wheel turns) and
revolving with the said journal. Upon this journal and at each end thereof are
pinions which engage with teeth extending inwardly from the rear part of wheel
segments formed upon the arc of a circle of which the cross shaft is the centre.
A sprocket wheel is mounted upon a sleeve forming the axial centre of the ground
wheel the whole turning together upon the journal of the latter. A bevel wheel is
mounted upon the cross shaft and turns therewith meshing into a pinion upon the

page_text: operating shaft and by which through the usual pitman connection the cutting. knite
is driven. A half clutch is permanently secured to the cross shaft which engages
with a corresponding loosely mounted half clutch upon the inner end of the hub part
of a sprocket wheel. A peripheral groove is formed in the reverse side of the sprocket
wheel hub within which shifter forks enter. A longitudinal right angled stem forms
a part of the shifter fork which passes through an axle-supporting post. Between the
said post and the shifter-fork is a coiled spring through the centre of which coil
passes the said stem, the ends of the spring impinging against the vertical portion
of the shifter-fork and the inner side of the post. A rearwardly extending arm is
loosely mounted upon the said stem so as to turn thereupon. A perpendicular rod
connects the said arm with a hand-lever. This hand-lever is placed within reach of
the driver when in his seat which rises from a plank resting on and secured to a
bracket upon the top side thereof. The seat is located in the usual place in this type
of machine. A laterally projecting cam is provided upon the hub end of the arm or
lever and a pin passes through the shifter-fork stem against the inner edge of which
the said cam inipinges, so that when the hand-lever is thrown over the cam, by its
contact with the pin, will, through the shifter, pull the catch laterally, thereby severing
the connection and causing the binding mechanism, as well as the cutting mechanism,
to remain in a state of rest while the machine is moving upon its wheels. Upon the
reverse movement of the lever above mentioned the spring will throw the moveable
part of the clutch into engagement with the fixed part and as the sprocket wheel
having the half clutch upon its hub part carries the operating chain with it in its
movement, it will be seen that when out of gear only the ground wheel and the two
driving sprocket wheels with the driving chain will revolve when the machine is
travelling over the ground the whole operating mechanism being started or stopped
by this single clutch arrangement.
The usual saw-tooth clutch is used so as to allow of the backward movement of the
machine without giving a like movement to the working parts. When a vertical
adjustment of the ground wheel end of the machine is to be effected the crank-handle,
(by the square socket in the end of the arm) is placed upon the square end of the
worm-wheel shaft and through connection with the worin-gear, the sprocket wheel
upon the cross shaft is made to turn upon the shaft by the movement of the crank;
the latter through the chain connection with the sprocket-wheel fixed to the ground
wheel journal causes the shaft with the pinions upon its ends to turn; the pinions,
by engaging with the segment racks change the relative position of the frame and
ground wheel the latter acting as a fulcrum by means of which the frame-work is
raised or lowered. When the desired adjustment is made the crank-handle is removed
and the lock-catch having the square recess in the free end is brought down upon the
squared end of the worm-wheel shaft thereby preventing any displacement which
might otherwise be caused by the jarring occasioned by the movement of the machine
over uneven ground. It is well known that there is no novelty in the use of the
axle as a fulcrum for raising and lowering the machine through the intervention of
the pinions and toothed seginents. It is also known that a shaft carrying pinions
which co-act with the segment rack have heretofore been used in connection with
sprocket-wheels and worm gear similar to this arrangement, except that by the
mechanism herein shewn the shaft carrying the sprocket-wheels, the worm gear and
the main driving gear is located some little distance forward of the back-bar of the
frame and between the said bar and the ground wheel so that a suitable bearing can
be had in the rear as well as in front of the pinion meshing into the main gear-wheel;
by this means the longitudinal shaft upon which this pinion is located and by which
the entire operating mechanism is driven will not become sprung, as it is liable to be
when the construction is such that the gear arrangement is placed so far in the rear
of the machine that the pinion must hang outside the bearing thus affording only a
front or one side support.
Referring now to the grain-wheel a toothed slide carries the axle upon which the
grain wheel revolves, the grain-wheel supporting standard has gibbed edges forming
ways within which moves the toothed slide whereby the same is kept from lateral

page_text: displacement, a bracket forming a part of the standard extends rearwardly suffi-
ciently far to permit the snail-cam to operate within the enclosure as well as to
form a bearing for the inner end of the snail-cam-carrying shaft. The rib forming
the scroll of this cam is not continuous but is divided at one place so that the end
portions lap over each other, and form a space between the ends equal to the thickness
of a single tooth on the slide, the teeth and cam-rib being of the same pitch so as to
mesh together. Now, as the cam is fixed to the platform of the harvester-frame, by
means of the bearings within which the crank rod or shaft revolves, the cam being
firmly secured to the shaft so as to turn with it, it will be seen that by each revolution
of the cam the slide will be moved up or down the distances covered by a single tooth,
carrying with it this end of the platform as the wheel is attached (by its bearing) to
the slide, and at all times has a peripheral bearing upon the ground.
An arched truss-bar, the apex of which is bolted to a flange projects inwardly from
the grain-wheel-supporting standard while the ends of the truss-bar are secured to the
cross-bar at its end connection with the finger-bar and the rear bar of the platform.
The bearing of one of the canvass rollers is by suitable flanges bolted upon the upper-
most portion of the rear bent elevator channel bar, while another bearing is similarly
secured to the front bent channel-bar. These bearings have secured to them flanged
portions to which is bolted an angle-bar which serves as the upper support for the
binder-frame.
A chain sprocket-wheel is mounted upon the main driving shaft and by this through
the intervention of the usual system of sprocket-wheels and chains the entire binding
mechanism is driven.
In order that the pitman which drives the sickle may have room to operate, one of
the cross bars connecting the rear and front bars of the gear frame is made shorter
than the other cross bar and at its forward end is provided with a cast metal extension
piece having grooves at the back end for the reception of the flanged edges of the
cross bar to prevent lateral displacement, while the parts are securely bolted together.
The front end of this bent extension of the cross-bar is also provided with cross-
grooves corresponding with the lower edges of the front-bar of the gear frame which
is also made of channelled metal. A post having an inclined arm for supporting the
inner end of the finger-bar is provided with flanges upon each end to correspond with
the face of the bars coming in contact therewith, the parts being securely fastened
together with proper securing bolts.
It will be observed that the square channel steel herein referred to affords a
convenient face upon three of its sides for fastening thereto any attachment for the
support of the parts; that great strength is obtained with a minimum of weight, and
whilst rigidity is preserved, there is yet sufficient elasticity given to the bar for the
preservation of the bolts intact so that in use they will not become broken, or the nuts
loosened as is frequently the case when solid metal bars are used.
Dated this 20th day of A 1007

page_text: COMPLETE SPECIFICATION.
Improvements in Harvesters.
I, GEORGE FREDERICK REDFERN, of the firm of G. F. Redfern & Co., the General
Patent Office, No. 4, South Street, Finsbury, in the County of Middlesex, Patent
Agents, do hereby declare the nature of this invention (a communication from abroad
by Byron Eugene Huntley, of Brockport, State of New York, United States of America,
Manufacturer,) and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
This invention relates to improvements in self-binding harvesters in which a
revolving canvas of the usual construction is located rearwardly of the finger bar and
operated in conjunction with the ordinary elevating canvas by means of which the
grain is carried over the driving wheel and brought within reach of the binding
mechanism which may be of any well known type such for instance as the "Appleby."
The object of the improvements is mainly the substitution of metal for wood the
frame being composed of metallic channelled bars, preferably of steel, square in section,
and bent into the required shape, the parts being secured together by means of boits
and intervening channel plate clips made conformably with the shape of the channelled
bars and by means of which the impinging parts are interlocked one with the other ;
also a simple and effective method is provided of independently raising and lowering
the ends of the machine upon its two bearing wheels.
In order to enable the invention to be fully understood I will describe how it can
be carried into practice by reference to the accompanying drawings in which
Figure 1 is a rear perspective view of the metal frame-work of a harvester con-
structed according to this invention the side-boards being shown in dotted lines.
Figure 2 is a front perspective view of a portion of the frame-work taken from the
finger-bar side of the machine showing the manner of connecting the several parts.
Figure 3 is a rear perspective view of a portion of the frame carrying the ground-
wheel showing the manner of communicating motion therefrom to the main driving-
shaft which through suitable connections imparts motion to the entire operating
mechanism.
Figure 4 is an outside view of the grain-wheel carrying bracket, showing the
manner of raising and lowering the said grain-wheel for varying the height of this end
of the platform.
Figure is a detached view of the snail-cain used. in the vertical adjustment of the
grain-wheel.
Figure 6 is a detached view showing the manner of locking the shaft carrying
the worm-wheel used in the vertical adjustment of the ground-wheel end of the
machine.
Figure 7 is a detached view of the clutch mechanism used for throwing the working
parts in and out of gear with the ground or driving-wheel.
Figure 8 is a detail view, showing the manner of uniting certain bars that form a
portion of the framework.

page_text: Figure 9 is a detail view showing the manner of interlocking such bars as are
placed at right angles with each other.
Figure 10 is an enlarged cross section of a channelled bar used for forming the
main frame work.
Figure 11 is a face view of a channelled clip-plate, used in forming a rigid connection
between the several bars.
Figures 12 and 13 are cross-sectional views of the channelled clip-plates.
Figure 14 is a view showing the manner of securing the angle-iron bar supporting
the binder to the end of the uprising channel-steel elevator the said bar also tying the
ends together.
Similar letters refer to similar parts throughout the several figures of the drawings.
In the manufacture of metal frame harvesters a difficulty has been found in securing
the necessary rigidity without materially adding to the weight of the machine. It is
well known that where shafting is used for operating the mechanism, the several
bearings must at all times be kept in line or there will not only be undue friction but
the bearings will become rapidly worn thus impairing the usefulness. This is especially
the case in agricultural machinery that passes over uneven ground.
To remedy these defects in metal bar machines this channelled steel frame has been
devised. It is well known that solid metal bars have been heretofore used for forming
harvester frames, also frames have been made of tubular-iron, angle-iron, &c. But
it is believed that channelled steel bars have not been previously used of the form
described and shown in figure 10 whereby great rigidity and strength is combined
with lightness of material.
In the platform frame, the finger-bar A forms the front portion, A' is the end bar
and A² the rear bar. The bars A1 and A2 are made of channelled steel, while the
finger-bar is of usual construction having the guard fingers secured to an angle-bar,
the back vertical part of which is of a width to correspond with the thickness of the
end bar and is secured thereto by a corner bracket or in any known. manner. The
rear grain-end corners of these bars forming the platform frame are secured together
by a bracket a which supports the rear end of the crank rod B, to the inner end of
which is attached a snail-cam C the operation of which will be hereinafter explained.
The bracket a is provided with foot pieces a' which form an angle bar one leg of which
is bolted to the end-bar A' and the other to the rear-bar A2 by means of which the
two bars are firmly united.
DD is the rear bar of the gear frame and D¹ the front bar of the same. The bars D
and D are connected by cross bars D2 D³, the bar D2 being upon the outside of the
ground wheel and the other bar D³ upon the inside of the same, sufficient space being
left between the bars to allow the wheel and driving mechanism to turn therein. This
gear-frame is upon a higher horizontal plane than the platform frame, the two frames
being secured together in the following manner. The rear bar D of the gear frame
extends inwardly past and above the end of the rear bar A² of the platform-frame, the
latter being bent upwards sufficiently far to reach the underside of the former less
the thickness of a flanged and channelled clip-plate d figure 12 which is interposed
between the two bars. This clip-plate has flanges or lips upon each side which lap
over the edges of the solid portion of the bar while the lower edges of the adjoining
bar rest within the channels d¹ thus securely uniting the parts and preventing lateral
displacement. Clip-plates similar to those shown in figures 11 and 12 are provided
for use upon the channelled edges alone with a securing bolt passing through a hole e.
A bracket carries the bearing box which supports one end of the canvas roller (not
shown in the drawing) which is also provided with channelled ends conformable with
the edges of the bars, against which the said ends abut, a bolt passing through each
bar as well as the bracket and by this means firmly securing the parts together. A
rear bent channel bar G forms the end support of the elevator frame while a duplicate
bar G¹ serves a similar purpose at the front end of the said frame. These bars are
both channelled whereby strength is afforded with lightness. The outer ends of these
bars rest upon the top side of the rear and front bars D, D₁ of the gear frame while
the inner ends stop short of the said bars and abut against a flange upon the seat-

page_text: plank-standards and are securely bolted thereto the feet of the said standards being
secured to the back and front bars of the gear-frame. The seat-plank R¹ is bolted
upon the top end of the standards F. Upon the forward end of the plank is secured
a tilting-lever detent 2 (figure 2) within the teeth of which an ordinary spring-bolt
enters, located upon a lever r¹ as usual. This tilting lever is attached to a rock-
shaft, the crank end of the shaft being made to turn in a bearing secured to a
vertical channel-bar D'. The bar De near its lower end is bolted to a channelled
bar D, while its upper end is firmly secured to the bent bar G¹.
D is a brace-rod extending diagonally from the upper portion of the upright
bar D to about the longitudinal centre of the horizontal bar D, thereby so uniting
the said bars and therewith the entire frame-work that while the machine is being
tilted through the medium of the rock-shaft-mechanism (united to the draught pole
or tongue Z by pivotted connecting bars Z¹) the several parts will at all times be
rigidly held in true position.
The channel bar D' is located above the cross-bar D³ and runs parallel therewith.
A similar channelled bar D is similarly placed above the cross bar D². The bar D*
is therefore upon the outside whilst the other bar D is inwardly placed; the ends of
the said bars rest upon posts E, E' which have channels in their ends corresponding
to the form of the bars against which they impinge. The post E supporting the rear
end of the bar D5 is provided with bolt holes through each end (the post being a shell).
Bolt holes are also formed through the bars D, 13, D³, the holes forming a passage
way for a securing bolt whereby in connection with the intervening clip-plates the
parts are securely fastened together as shown in figure 8.
The other posts E' are formed in a similar manner to the post E except that they
are made to conform upon their inner edges with the rear and front bent-bars G, G¹
and are secured thereto in such a manner that all the bars together with the posts are
firmly united so that they can serve the purpose for which they are intended. To the
rear post E¹ is secured the bearing M figure 1, of an operating shaft M' while upon
the rear face of the said post is pivotted a worm-shaft securing-hook h, figures 3 and 6.
This worm-shaft, marked H, carries upon its inner end a worm H₁ which acts in
combination with a worm wheel H³ loosely mounted upon a cross shaft 1. The worn
wheel H³ has attached to it and turning therewith a sprocket wheel J carrying a
sprocket chain J¹ which encircles another sprocket wheel J2 fixed to the ground or
driving wheel axle K (upon which the ground or driving wheel, not shewn in the
drawing, turns) and revolving with the said journal. Upon this axle K and at each
end thereof are pinions (one of which is shown at K2 figure 3) which engage with
teeth extending inwardly from the rear part of wheel-segments K³ formed upon the
are of a circle of which the cross shaft I is the centre.
A sprocket wheel L is mounted upon a sleeve K¹ forming the axial centre of the
ground wheel the whole turning together upon the axle K. A bevel wheel N is
mounted upon the cross shaft I and turns therewith meshing into a pinion N' upon
the shaft and by which through the usual pitman connection the cutting knife is
driven. A half clutch i, figure 7, permanently secured to the cross shaft I engages
with a corresponding loosely mounted half clutch upon the inner end of the hub-part
of a sprocket wbeel L³, figures 3 and 7 only part of this wheel being shewn in the
latter figure. A peripheral groove is formed in the reverse side of the sprocket
wheel hub within which a clutch or shifting fork enters. A longitudinal right
angled stem forms a part of the shifting fork which passes through an axle-supporting
post O.
Between the post O and the shifting fork is a coiled spring through the
centre of which coil passes the stem the ends of the spring impinging against the
vertical portion of the shifting fork and the inner side of the post O. A rearwardly
extending arm P is loosely mounted upon the stem so as to turn thereupon. A
perpendicular rod P¹ connects the arm P with a hand-lever P³, figure 1. This hand-
lever is placed within reach of the driver when in his seat which rises from the plank R'
resting on and secured to the top seat plank standards F. The seat, not shown in the
drawings, is located in the usual place in this type of machine. A laterally projecting
cam P is provided upon the hub end of the arin or lever P and a pin passes through

page_text: the shifting fork stem against the inner edge of which the cam P' impinges so that
when the hand-lever P³ is thrown over, as shown by the dotted lines in figure 1, the
cam, by its contact with the pin, will, through the shifting fork, pull the clutch
laterally, as shown in figure 7, thereby severing the connection and causing the binding
mechanism as well as the cutting mechanism, to remain in a state of rest while the
machine is moving upon its wheels. Upon the reverse movement of the lever above
mentioned the spring will throw the moveable part of the clutch into engagement
with the fixed part and as the sprocket wheel L2 carries the operating chain L' with it
in its movement, it will be seen that when out of gear only the ground wheel and the
two driving sprocket wheels with the driving chain will revolve when the machine is
travelling over the ground the whole operating mechanism being started or stopped by
this single clutch arrangement.
The usual saw-tooth clutch is used so as to allow of the backward movement of the
machine without giving a like movement to the working parts. When a vertical
adjustment of the ground or driving wheel end of the machine is to be effected the
crank handle R is placed with its square socket upon the square end of the worm-shaft
and through connection with the worm-wheel causes the sprocket wheel J to turn upon
the shaft I which through the chain connection with the sprocket-wheel J' causes the
axle K with the pinions upon its ends to revolve and thereby travel up or down the
segment rack teeth, thus changing the relative position of the frame and ground wheel,
the latter acting as a fulcrum by means of which the framework is raised or lowered.
When the desired adjustment is made the crank-handle is removed and the hook h
having a square recess in the free end is brought down upon the square end of the
worm-shaft H thereby preventing any displacement which might otherwise be caused
by the jarring occasioned by the movement of the machine over uneven ground. It
is well known that there is no novelty in the use of the axle as a fulcrum for raising
and lowering the machine through the intervention of the pinions and toothed segments.
It is also known that a shaft carrying pinions which co-act with the segment rack
have heretofore been used in connection with sprocket-wheels and worm gear similar
to this arrangement, except that by the mechanism herein shown, the shaft carrying
the sprocket-wheels, the worm gear and the main driving gear N are located some
little distance forward of the back-bar of the frame and between the said bar and the
ground wheel so that a suitable bearing can be had in the rear as well as in front of
the pinion meshing into the main gear-wheel; by this means the longitudinal shaft
upon which this pinion is located and by which the entire operating mechanism is
driven will not become sprung, as it is liable to be when the construction is such that
the gear arrangement is placed so far in the rear of the machine that the pinion must
hang outside the bearing thus affording only a front or one side support.
Referring now to the grain-wheel a toothed slide S carries an axle S¹ upon which
the grain-wheel revolves; the grain-wheel supporting standard $2 has its edges at S¹
formed into ways within which moves the toothed slide S whereby the same is kept
from lateral displacement. A bracket $3 forming a part of the standard S extends
rearwardly sufficiently far to permit the snail-cam C to operate within the enclosure
as well as to form a bearing for the inner end of the snail-cam carrying-shaft. The
rib forming the scroll of this cam is not continuous but is divided at one place so that
the end portions lap over each other, as shown in figure 5 and form a space between
the ends equal to the thickness of a single tooth on the slide S, the teeth and cam-rib
being of the same pitch so as to mesh together. Now, as the cam is fixed to the plat-
form of the harvester-frame, by means of the bearings within which the cranked rod
or shaft B revolves, the cam being firmly secured to the shaft so as to turn with it, it
will be seen that by each revolution of the cam the slide will be moved up or down
the distances covered by a single tooth, carrying with it this end of the platform as
the wheel is attached by its bearing to the slide, and at all times has a peripheral
bearing upon the ground.
T is an arched truss-bar, the apex of which is bolted to a flanget projecting
inwardly from the grain-wheel-supporting standard S2 while the ends of the truss-bar
are secured to the cross-bar A¹ at its end connection with the finger-bar and the rear

page_text: bar of the platform. U, U', U2, U³ are the bearings for the several canvas rollers
which are not shown in the drawing. The bearing U is by suitable flanges bolted
upon the uppermost portion of the rear bent elevator channel bar, while the bearing U³
is similarly secured to the front bent channel bar. These bearings have secured to
them flanged portions, shown clearly in figure 14, to which is bolted an angle-bar V
which serves as the upper support for the binder-frame (not shown).
A chain sprocket-wheel W, figure 3, is mounted upon the main driving shaft. M'
and by this through the intervention of the usual system of sprocket wheels and chains
the entire binding mechanism is driven.
In order that the pitman which drives the sickle may have room to operate, the
cross-bar D³ is made shorter than the other cross-bar and at its forward end is provided
with a cast metal curved extension Y, figure 2, having grooves at the back end for
the reception of the flanged edges of the cross bar D³ to prevent lateral displacement,
while the parts are securely bolted together. The front end of this curved extension
of the cross-bar is also provided with cross-grooves corresponding with the lower edges
of the front-bar D₁ which is also made of channelled metal. A post Y¹ having an
inclined arm Y' for supporting the inner end of the finger-bar is provided with flanges
upon each end to correspond with the face of the bars coming in contact therewith,
the parts being securely fastened together with proper securing bolts.
It will be observed that the square channel steel herein referred to affords a
convenient face upon three of its sides for fastening thereto any attachment for the
support of the parts; that great strength is obtained with a minimum of weight, and
whilst rigidity is preserved, there is yet sufficient elasticity given to the bar for the
preservation of the bolts intact so that in use they will not become broken, or the nuts
loosened as is frequently the case when solid metal bars are used.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed declare that what I
claim is :-
1. The herein described harvester-frame made from bars of channelled steel, the said
bars being secured together by means of bolts and grooved or channelled securing-
plates having central bolt-holes, substantially as herein before described.
2. The upright channelled steel elevator supporting bars, bent or curved into the
required form in combination with the main frame of a harvester for the purpose
described and substantially as herein set forth.
3. In a harvester having the elevator and gear frames mado from channelled steel,
the combination of the intermediate bar-supporting posts provided with channelled or
recessed ends made conformable with the bar against which the posts impinge and the
securing bolt firmly uniting the parts together, substantially as described.
4. In a channelled steel harvester frame formed in the manner shown, the
combination of the bars D, D, the post Y₁, having the channelled and grooved ends
corresponding with the face of the bar against which the ends of the post abut, the
diagonal arm Y2 for supporting the inner end of the finger-bar, the post-securing bolt,
the curved extension Y, and bar D¹, all arranged substantially as described and for the
purpose set forth
5. The combination of the upright bent or curved channelled steel elevator
supporting bars, the seat supporting standards, bars D, D', 1), D³, and bar V, all
arranged substantially as hereinbefore described.
6. The herein described device for effecting the vertical adjustment of the ground-
wheel-end of a harvester the said device consisting of the worm H¹ mounted upon the
shaft H, the shaft I carrying the sprocket-wheel and clutch mechanism, the worn-
wheel H³ having the sprocket wheel J attached thereto, the sprocket-wheel J³,
chain J, ground-wheel-axle K carrying pinions K2, rack-segnients K³ and the
sprocket wheel L, mounted upon the sleeve K'; the entire mechanism being located
between the front and rear-bars of the harvester frame, substantially as and for the
purpose herein before set forth.
7. The combination of the tilting mechanism with the upright, channelled steel,

page_text: elevator-supporting bar G', the vertical, channelled steel bar D, the cross-bar D³,
and brace-rod D7, all arranged and operating substantially as and for the purpose
herein before set forth.
8. The combination of the worm wheel and co-operating raising mechanisın, the
worm, the shaft carrying the same provided with the squared end, the crank having
the square-recessed end corresponding with the squared part of the worm-shaft and
the securing hook h, all arranged substantially as and for the purpose hereinbefore
set forth.
9. The shaft I, having the half-clutch i mounted thereupon, in combination with the
sprocket-wheel L³, having the half-clutch upon one end of its hub, and the
peripheral groove upon the other end of the same, the sprocket-wheel being inter-
mediate between the said half-clutch and groove, the the clutch or shifting fork, the
right-angled stem to the same, carrying the coiled spring, the axle and shifting fork
supporting-post O, the cam-lever P, pin ", rod P1 and hand-lever P³, all arranged
substantially as and for the purpose hereinbefore set forth.
Dated the 6th day of January 1888.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.