IMPROVEMENTS IN REAPING AND MOWING MACHINES
Year: 1876

page_text: LETTERS PATENT to William James Burgess and Charles Thomas Burgess, both
of Brentwood, in the County of Essex, for the Invention of "IMPROVEMENTS
IN REAPING AND MOWING MACHINES."
Sealed the 19th December 1876, and dated the 11th July 1876.
PROVISIONAL SPECIFICATION left by the said William James Burgess and
Charles Thomas Burgess at the Office of the Commissioners of Patents on the
11th July 1876.
WILLIAM JAMES BURGESS and CHARLES THOMAS BURGESS, both of Brentwood, in
the County of Essex. "IMPROVEMENTS IN REAPING AND MOWING MACHINES."
This Invention has for its object improvements in reaping and mowing machines.
In reaping machines heretofore constructed the rake arms have commonly been
jointed to a vertical or inclined axis in such manner that in addition to being
carried round with the axis as it rotates they can also be caused to rise and fall by
means of a fixed circular cam concentric with the axis, and upon which the arms
rest. The arms have also been coupled together in pairs (usually there have been
two pairs), the two rakes of each pair being on opposite sides of the axis, and so
partially balancing one another, whilst at the same time each arm rested at all
times upon and was supported by the circular cam.
The object of our Invention is to provide means for enabling any one or other of
such balanced rakes to be caused at pleasure to sweep over the platform and deliver
the cut crop from it, or to be lifted up clear of the platform so as not to deliver,
whilst at the same time the advantage of having the opposite arms balancing one
another, and of their both resting at all times upon, and being supported by, a
circular cam surrounding the axis is retained.
For this purpose upon the opposite sides of the rake axis we combine with the
ordinary fixed circular cam two moveable cam pieces, which lie close up to its cir-
cumference, and we provide means for simultaneously moving these shifting cam
pieces in opposite directions, either upwards or downwards, so that when one is
raised the other is lowered.
When any one or other of the rakes is to be allowed to deliver the cut crop from
the platform the moveable cam piece at the side of the cam which is towards the
platform is lowered and put out of action, the arm carrying the rake which is to
sweep over the platform then rests upon the fixed cam, whilst at the same time the
opposite arm rests upon and is supported by the moveable cam piece which was
[Price Sd.]

page_text: raised as the other was lowered. When the rakes are to be caused to pass clear of
the platform the position of the moveable caun pieces is reversed, the arm which is
to pass over the platform then rests upon the moveable cam piece which has been
raised, whilst the opposite arm rests upon the fixed cain. The moveable cam picces
may be mounted upon pivots, and be raised and lowered by inclines upon a sliding
bar passing below the cam, and which can be shifted end wise to and fro. The end-
way movement may be given to the sliding bar by a rod descending from it and
resting at its lower end upon cam surfaces carried by the rake axis, or other means
may be adopted for shifting the bar to and fro.
If the rake axis is driven by means of a pinion on the axle of the driving wheel
gearing into a bevilled toothed wheel upon the lower end of the rake axis the cam
surfaces may be formed in concentric rings upon the upper surface of this wheel.
One cam surface may be formed to lift and hold up the rod before mentioned during
the time that three of the four rakes pass over the platform, and so cause the fourth
rake only to deliver. Another concentric cam surface may similarly raise the rod
to cause every other rake to deliver, and a third cam surface may cause every third
rake to deliver, and similarly every fifth, sixth, or other number, if desired. In this
case, however, this circular ring cam must be moveable relatively to the wheel on
the rake shaft, and make a complete revolution whilst the rake shaft makes three
fourths of a revolutions; the moveable cam ring may for this purpose have teeth
around it, and be driven by a small shaft and pinions from the toothed wheel upon
the rake shaft. Suitable means are provided for shifting the lower end of the rod
on to any one or other of the cam surfaces to vary the delivery as required; the
lower end of the rod can also be brought into a position clear of all the cams, and
remain unsupported, the rakes will then all deliver. Or the rod can be held up
for a time; the delivery will then be entirely stopped.
In
The shifting to and fro of the rod can be effected by a band lever or treadle.
some cases one or other of the moveable cam pieces may be dispensed with, the
remaining moveable cam piece being in that case so made as to come both above
and below the friction rollers, which are interposed between the cam and the rake
arms.
By this arrangement the advantage of having the two opposite rake arms sup-
ported during the time that one of them is delivering the cut crop from the plat-
form may still be retained.
Our second improvement relates to improved means of forming the fingers of
reaping and mowing machines with a durable wearing surface below the moveable
cutting blade. For this purpose we form the finger of malleable cast iron or other
metal with a slot in it, as heretofore, for the moving knife to work through, and in
place of securing a strip of steel or other hard metal to the lower surface of the slot
by rivets or such like fastenings, as has heretofore been done, we form a cavity all
along the lower surface of the slot, and fill in this cavity with chilled cast metal by
pouring the metal directly into the cavity, the finger being at the time held in a
mould, and a "chill" or core placed across the slot in the finger, so that the bottom
surface of the slot has a hardened wearing surface given it. The sides or bottom
of the cavity in the finger may have projections standing out from them to prevent
the metal so cast into the cavity from becoming detached from the finger.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William James Burgess and Charles Thomas Burgess in the Great Seal
Patent Office on the 11th January 1877.
WILLIAM JAMES BURGESS and CHARLES THOMAS BURGESS, both of Brentwood,
in the County of Essex. "IMPROVEMENTS IN REAPING AND MOWING MACHINES."
This Invention has for its object improvements in reaping and mowing machines.
In reaping machines heretofore constructed rake arns having rakes fixed to their

page_text: outer extremities have commonly been jointed to a vertical or inclined axis in such
manner that in addition to being carried round with the axis as it rotates they can
also be caused to rise and fall by means of a fixed circular cam concentric with the
axis and upon which the arms rest. The arms have also been fixed together in
pairs (usually there have been two pairs) and have turned upon the same joints
or pivots, the two rake arms of each pair being on opposite sides of the pivots and
so partially balancing one another, whilst at the same time each arm rested at all
times upon and was supported by the circular cam. Heretofore when such rigid
balanced rakes have been used there has been no means of causing the rake arms to
carry their rakes clear of the platform whenever it is desired for a time to arrest
the delivery nor for altering the rate of delivery.
By our Invention we are enabled amongst other advantages not only to retain
the advantages arising from the use of rigid rakes balancing one another, but we
are also enabled, without stopping the machine and without the person in charge
having to leave his sent, to cause every rake, or every second, third, fourth, or
fifth, &c. of such rakes, at pleasure to sweep over the platform and deliver the cut
crop from it, or to cause all of the rakes to pass at such a height over the platform
as not to deliver.
For this purpose we combine with the ordinary fixed supporting cam upon which
the rake arins rest, a moveable supporting cam or cams which lie around its circum-
ference and rock upon pins. We give motion to the moveable supporting can or
cams by a rod, to which a rising and falling motion is given from cams upon the
rake axis or other axis or axes. One of such cams we employ for causing every
second rake to deliver, that is to sweep the cut crop from off the platform, another
cam for causing every third rake to deliver, and another every fourth, and so on
for more variations if required, Every rake can also be caused to deliver, or all
the rakes caused for a time to act as beaters only and not to deliver.
To provide for the possibility of any rake being caused to deliver, that is either
every second or every third or every fourth, and so on, it is necessary that one or
more of the cams should be revolved at a different speed from the rake head or
axis. The fixed supporting cam may be dispensed with, and the oscillating sup-
porting cam be alone used for supporting the rake arms. It is not essential that
the opposite rake arms should at all times be both supported by the cams.
The arrangement of revolving cams above described may be employed for con-
trolling the action of the noveable portion of any guiding or supporting cam used
for raising and lowering the rake arms, or for giving motion to other inechanism.
used for causing the rate of delivery to vary at the will of the person in charge of
the machine. The rake axis we place on the outer side of the main wheel, as in
machines heretofore constructed by us.
Figures 1, 2, 3, 4, and 5 of the Drawings hereunto annexed shew our improve-
ments in the delivery action of reaping machines.
Figure 1 is a back view; Figure 2 a plan; Figure 3 a side clevation in the
direction of the arrow (Figure 2); and Figure 4 is a section taken through line A, B,
(Figure 3) of part of a reaping machine constructed according to our Invention.
A is the rake axis, to the upper end of which are pivotted two metal arms B,
formed at both of their ends with sockets B₁, into which are fixed the wooden arms
which carry the rakes, as is usual in machines heretofore constructed by us and
others. The rake axis is, as shewn, on the outer side of the main driving wheel X
of the machine, as is also the driver's seat Y, as is usual in machines made by us,
but the driver's set may be otherwise placed provided that suitable levers, cords,
or other connections are added for the purpose of enabling the driver or person in
charge of the machine to control the delivery from his seat.
Any suitable arrangement of gearing for giving motion to the cutter and rake
axis may be employed, the arrangement we adopt is similar to that described in the
Specification of a former Patent granted to William James Burgess and Charles
Thomas Burgess, No. 2801, in the year One thousand eight hundred and seventy,
and is now well known, so that it is unneccessary to give any description of it.

page_text: B are the friction rollers below the sockets which rest upon the supporting cam.
C is a fixed supporting cam carried by the framing of the machine as is usual, but
in place of this cam being of such a shape that the friction rollers of both the
opposite rake arms are always resting upon it, it is so formed as to support one of
the arms only at the time when one of them is passing over the platform, the
opposite arm being at that time supported by the moveable supporting cam D, this
supporting cam lies around the supporting cam C, and turns on pins C₁ which
project from it. When a rake is passing over the platform and it is desired that it
shall be caused to sweep off the cut crop, the side of the moveable supporting
cam which is next to the platform is lowered and its opposite side is raised, the arm
of the rake which is sweeping over the platform then rests upon the fixed supporting
cam, whilst the opposite arm rests upon the moveable supporting cam and vice
versa, when the rake which is passing over the platform is not to deliver the
side of the moveable supporting cam which is towards the platform is raised, and
supports the rake arm, whilst the opposite side of the moveable supporting cam is
lowered, leaving the opposite rake arm resting on the fixed supporting cam.
The rocking supporting cam has pin jointed to it a rod E which at its lower end
is jointed to a crank pin F1 on a disc F as is shewn more clearly in the full size
views (Figures 5 and 6). The axis of this disc is supported in bearings upon arms
which form part of the framing of the machine; upon the axis of the disc is a
pinion G into which gears a toothed arc E. carried by a frame which is free to swing
upon a fixed axis I.
This frame is constantly pressed upwards by a spring J as
shewn at Figure 3. The frame has also rising up through it a bush K through
which passes a stem K¹ upon the top of which is a roller or truck L. This truck
rests upon one or other of the cams M, M³, M², upon the rake axis A. The spring J
serves to hold the truck against the cams. The bush and stem carrying the truck
can be raised by a lever N so as to bring the truck to bear upon either the cam M,
M', or M², or to lower it below them all. A spiral spring O serves to press the
bush K downwards, but the stem can be held in any desired position by springing
the lever handle under one or other of the notched projections P¹ on the arm P,
which forms part of the swinging frame. As the swinging frame is rocked to and
fro by the cam the toothed are on the swinging frame revolves the pinion upon the
axis of the disc before mentioned, giving to it somewhat more than a half-turn.
When the truck is furthest away from the rake axis the crank pin of the disc is in
the position shown at Figures 3 and 6, and the part of the cam to which it is jointed
is drawn down below the fixed cam. When the truck is at its nearest point to
the rake axis somewhat more than a half turn will have been given to the disc, and
the part of the moveable supporting cam to which the crank pin is jointed will have
been raised above the fixed cam and the rake arms as they pass over the platform
will bear upon it. When the disc is in this position a projection F2 upon the disc
comes against one of the fixed arms which support its axis, as shown in Figures 7,
and the disc is thereby stopped from turning further, the crank will also have
moved past its centre so that any downward pressure upon the moveable supporting
cam tends only to press this stop harder against the arm. By this means a very
secure support is afforded to the moveable supporting cam during the time the rake
arms are passing over it.
The two upper cams M, M', are keyed to the rake shaft, the other cam M2 is free
to pivot around it, it has fixed to it a toothed wheel M³ which by intermediate
wheels Q, Q, is geared with the wheel R fixed upon the rake axis. The diameters
of the wheels are so proportionate that the cam shall make a complete revolution
whilst the rake shaft makes three quarters of a revolution, this cam is formed with
one recess and causes every third rake to "deliver." The cam M is formed with
two recesses and causes every second rake to deliver, and the cam M³ is formed with
one recess and causes every fourth rake to deliver. Plan views of these cams are
shewn at Figure 8. The truck L can also be lowered by the lever N so as to come
below all the cams upon the rake shaft and not be moved outwards by them, all
the rakes will then deliver; or when the truck has been moved outwards away from

page_text: the cam shaft by one or other of the cams, the swinging frame which carries the
truck may be locked by a catch pin S (see Figure 5) being moved forward so as to
enter a hole in the disc F, the truck will then be no longer acted upon by any of
the cams, and none of the rakes will deliver. The pin S is pressed away from the
disc F by a
spring S¹, a spring S2 abuts against the head of the pin S and this
spring S is put in compression whenever the pin S is to be moved forward. The
spring S can be put in compression by a plug S³ which has at its end a handle S
by which it can be turned; on the plug is also a small feather entering a spiral
groove in the fixed bearing, which carries it so that when the handle S is turned
the pin S moves forward and enters the hole in the disc F so soon as this hole comes
opposite to it.
From the above description it will be seen that the action of the delivery appa-
ratus is readily under the control of the driver sitting on the seat Y, as the rake
axis and the rake controlling apparatus are close alongside of him, and between
him and the main wheel, he can therefore readily shift the lever handle N either
upwards or downwards whenever he desires to alter the rate of delivery, or he can
cause the rakes all to ride high above the platform so as not to deliver for any
length of time whenever desired. The whole weight of the rake controlling appa-
ratus also aids to balance the weight of the platform on the opposite side of the
wheel and prevent too much weight being thrown on to the small wheel by which
the outer end of the platform is supported. The rake controlling apparatus herein-
before described can however also be employed when the rake axis is upon the
inner side of the main wheel, but not so conveniently.
When the above or other automatic control apparatus is on the inside of the
wheel; we also in like manner arrange that the driver whilst sitting on his seat
can cause the delivery to vary from one rate to another. For example the arrange-
ment of control apparatus shewn at Figures 1 and 3 of the Specification, No. 3482,
in the year 1875, can be so altered as to be adjusted by the driver as shewn at
Figure 3*.
The ring (1) which lies between two springs around the bolt (t) of that apparatus
has projecting from it a nib lying in a worm (2), this worm can be revolved by
turning an axis (3), one turn of the axis gives two turns to the worm and shifts
the ring, and consequently the bolt the required distance to make a change. The
axis (3) is carried back upon the inner side of the main wheel, and near the back of
the wheel has upon it a universal joint so that the handle at its rear end may be
brought within reach of the driver.
We would also state that in place of the truck L being moveable as herein-before
described and shifted from one cam to another, the cams themselves might, although
not so conveniently, be raised and lowered and the truck remain stationary.
Although we prefer that the cams upon the rake axis should be one below the
other and should give a rising and falling motion to the rod E, in the manner
hercin-before described, it is not essential that they should be placed upon the shaft
in this manner, they might be arranged in concentric rings upon the face of the
disc or wheel on the rake axis as shewn at Figure 9, and the lower end of the
rod E might in this case be caused to bear directly upon the surface of one or other
of the cams according to the movements required to be given to the rakes as shewn
at Figure 10, suitable means being provided for holding the lower end of the rod
and retaining it above any one or other of the cams. In the arrangement of cams
shewn at Figure 9, the outer cam M2 is for causing every third rake to deliver; it
is free to turn upon the 'rake axis and has a ring of teeth around it. This ring of
teeth is by intermediate pinions geared with the toothed wheel A¹ by which the
rake axis receives its motion, and is thereby caused to make a complete revolution,
whilst the rake shaft makes 3% of a revolution, the other cams M, M, are fast
upon the rake axis. The same object may be obtained both in this arrangement
and in the one previously described by mounting the cam M², which causes
every third rake to deliver on a bearing eccentric to the rake shaft and causing the
ring of teeth upon it to gear directly with a toothed wheel on the rake axis.

page_text: As before stated it is not essential that the cams M, M1, M2, should be upon the
rake axis, they might be upon another axis or axes so long as the speed at which
they revolve varies with the speed of the rake axis, and provided that provision
is made for readily moving the truck or bearing point from one cam to another.
It is also not essential that one or more of the cams should revolve at a different
speed from the other or others. The cams might be so formed as to obtain the
same result, if they are all driven at a uniform speed differing from, but varying
with the speed of the rake head, for example, when four rake arms are used if the
cams be uniformly driven at a speed of one third of that of the rake head or axis,
onc cam with six projections or recesses upon it may be employed for causing every
second rake to deliver, another cam with four projections or recesses upon it for
causing every third rake to deliver, and another cam with three projections or
recesses for causing every fourth rake to deliver.
In place of the moveable supporting cam D which supports the rake arms being
in one piece as in the Drawings, Figures 1, 2, 3, &c., it might be in two parts as
shown at Figure 10 and 10°, we however, prefer the arrangement already described.
When the supporting cam D is in two parts, one part may be caused to rise at the
time when the other descends by means of inclines on a bar T capable of sliding
endwise in guides carried by the fixed supporting cam C as shown at Figure 10.
In this Figure the bar T is shewn to be coupled to the rod E, so that when the
rod rises or falls, the bar is moved endwise in its guides. The rod is also shewn as
resting at its lower end on cams M, M1, M2, on the rake axis as just described; E¹
is a spring for pressing the bar T downwards and keeping the rod E down on to the
cams.
Also, as before stated, the fixed supporting cam C may be dispensed with and
the rocking supporting cam D, or it might be a simple ring may be alone employed
for supporting the rake arms, in this case the cams 1, M1, M2, upon the rake axis
may be so modified in form as to cause the rakes to move in any desired path.
As before stated it is not essential that the moveable cam should pass around the
whole of the fixed cam, it may be around part of it only, in this case the moveable
cam should be formed so as to come both above and below the friction rollers
carried by the rake arms, the rollers in this case being so mounted upon the arms as
to allow a part of the cam surface to come above them.
Also when fixed cams are used for supporting the rake arms and are formed with
two tracks on one of which the friction roller of each rake arm is to rest when moving
over and clear of the platform, and on the other of which it is to rest when sweep-
ing the platform the "point" or pivotted portion of such cam which controls
whether the friction roller of any rake shall pass on to one or other track may be
raised or lowered by cams acting in the manner herein-before described.
We would also state that some advantage may also be derived from the use of
a rocking supporting cam or cams acting in combination with rigid rakes (where
the opposite rake arms are rigidly attached together as herein-before described, and
rock upon the same pivots) without at the same time making use of automatic
control apparatus for varying the rate of delivery as herein-before described; as
the rocking supporting cam or cams might be coupled to a lever or treadle for
example in the ways shewn at Figures 11 and 12 by which it may be tilted into
such a position as to cause the rake arms to carry the rakes at such a height above
the platform as not to deliver whenever the person in charge of the machine desires
for a time to stop the delivery. In the same way wherever rigid balanced rake
arms guided or supported by a cam or cams are used in a reaping machine the
moveable portion or portions of such cams may be connected to a treadle or lever to
be worked by the man in charge of the machine.
The arrangements of revolving cams herein-before described may also be employed
with other ordinary mechanism used for controlling the action of the delivery rakes.
When rake arms are used which are separately jointed to the rake axis many ways
are now adopted for causing the rakes to deliver or not to deliver at the will of the
driver or person in charge of the machine, who can cause the rakes either to deliver

page_text: or not to deliver by a pull or thrust upon a rod or cord, generally by a treadle or
lever.
Our arrangements of revolving cams herein-before described can in all such cases
be employed for automatically acting upon such rod or cord at the times required
and thereby cause either every second rake to deliver continuously or every third
or fourth, &c., as desired. The toothed rack and pinion need not in such cases be
nade use of as the cords or rod might be connected directly to the part which bears
upon the cam.
When the driver's seat is on the pole or in other position at a distance from the
rake shaft the axis or axes of the cams may be carried in close proximity to the
driver or man in charge and be driven by jointed shafts or otherwise from the
rake shaft or head, or other provision may be made for enabling the driver to shift
the truck or point which bears upon the cains from one cam to another according
as he desires to vary the rate of delivery, some of the advantages herein-before set
forth can by these means be obtained.
Having thus described the nature of this part of our Invention, and the manner
of performing the same we would have it understood that what we claim is:-
First. The rigidly fixed rake arms before described, that is, rake arms where
the opposite arms are rigidly connected and turn upon the same pivots combined
with a swinging supporting cam or cams or with any cam or canis or other device
which can be operated on either by automatic control apparatus or without the
intervention of automatic apparatus by the man in charge, so as to cause the said
rake arms to oscillate on the centre pivot and thereby control the action of the
rakes either in the rate of delivery of the corn or to temporarily suspend the delivery
altogether.
Second. The combination of rigid balanced rake arms (that is where the opposite
arms are rigidly connected, and turn upon the same pivots) carried by a vertical
or inclined axis on the outside of the main wheel with control apparatus by which
the delivery may be arrested or brought into operation for a time by the action of
the person in charge of the machine.
Third. The combination of rigid balanced rake arms (that is where the opposite
arms are rigidly connected and turn upon the same pivots) with a rocking support-
ing cam or cams substantially as herein described.
Fourth. Constructing the rake gearings of reaping machines with automatic
control apparatus so arranged that the driver during the progress of the machine
and whilst remaining seated on his seat can adjust the apparatus so as to alter the
rate of delivery, and cause either every rake, or every second, third, fourth, fifth, &c.
rake to deliver.
Fifth. The employment of separate cam paths or tracks one for cach rate of
delivery and one or more driven at different speed from the other or others or all
driven at a different speed from the rake head substantially as described for con-
trolling mechanism for causing the rate of delivery to vary at the will of the person
in charge of the machine.
Sixth. The combined arrangement of fixed supporting cam C and oscillating
supporting cam D acting together in the manner lierein-before described to control
the action of the delivery rakes whilst at the same time they support them at all
times.
Seventh. The combination with a rocking supporting cam or cams D of revolving
cams acting as herein-before described to control the rate of delivery.
Eighth. The combination of automatic control apparatus with a rocking support-
ing cam or cams for automatically causing either every rake, every second, third,
or fourth, &c. rake to deliver.
Ninth. The arrangement of delivery mechinism of reaping machines with the
rake axis on the outer side of the main wheel, and with a can or cams to control the
action of the delivery rakes to vary the rate of delivery at will.
Tenth. The combination of revolving cam paths one for each varying rate of
delivery with a swinging frame and moveable truck L substantially as described
for automatically controlling the delivery of reaping machines.

page_text: Eleventh. Carrying the automatically controlled rake gearing for varying the
rate of delivery on the outer side of the main wheel with the rake axis approximately
on a line with the axle of the main wheel and with the knife gearing inside the
main wheel and with the knife also in a line with the axle.
Twelfth. The combined arrangement of the delivery mechanism of reaping
machines substantially as herein described and illustrated in the Drawings annexed.
Our Invention also relates to improved means of forming the fingers of reaping
and mowing machines with a durable wearing surface below the moveable cutting
blade.
For this purpose we form the finger of malleable cast iron or other metal with a
slot in it as heretofore for the moving knife to work through, and in place of
securing a strip of steel or other hard metal to the lower surface of the slot by rivets
or such like fastenings as has heretofore been done, we form a cavity all along the
lower surface of the slot and fill in this cavity with chill cast metal by pouring the
metal directly into the cavity, the finger being at the time held in a mould and a
chill or core placed across the slot in the finger, so that the bottom surface of the
slot has a hardened wearing surface given to it.
The sides or bottom of the cavity
in the finger may have projections standing out from them to prevent the metal so
cast into the cavity from becoming detached from the finger.
Figure 13 shews a longitudinal section, and Figure 1+ a cross section of a finished
finger formed as above described.
Figure 15 shews an edge view of an uncompleted finger with the chill and side
pieces employed for casting on to it the wearing surface; Figure 16 shews. the
same view without the runner through which the inetal is poured; Figure 17 shews
an under side view of the finger chill and side pieces; Fig. 18 is a section
through the line 1, 1, Fig. 15.
The finger is as shewn made with a hollow or recess a under cut at its ends, across
this hollow is also a pin b, or small projections may be otherwise formed from the
sides or the pin or projection may be done away with, c is the metal chill placed
above the top of the hollow a; d is a bolt by which the finger and chill are held
together, between the chill and the top of the recess a is a small space al; e, e¹, are
metal blocks bolted to the chill, these serve to prevent the escape of metal from the
sides of the space a¹. The block e also as shewn forins the runner through which
metal is poured into the hollow a and space a¹. The finger with the chill and side
pieces attached to it is by preference slightly heated, and melted metal is then
poured in through the runner, the recess a and space between it and the chill are
thereby filled. When the metal has set the chills are removed from the finger, and
any slight webs or fins of chill cast metal which may project from the finger are
ground off on a grindstone. The finger with its chill cast waring surface is then
ready for use.
We claim as respects this part of our Invention forming the wearing surface of
the fingers of reaping and mowing machines against which the under side of the
knife rests of chill cast metal cast in place as herein described.
In witness whereof, we, the said William James Burgess and Charles Thomas
Burgess, have hereunto set our hands and seals, this Eleventh day of
January, in the year of our Lord One thousand eight hundred and seventy-
W. J. BURGESS.
C. T. BURGESS.
(L.S.)
(L.s.)