Improvements in Horseshoe Bending and Swaging or Rolling Machines.
Year: 1895

page_text: COMPLETE SPECIFICATION.
Improvements in Horseshoe Bending and Swaging or Rolling
Machines.
I, SAMUEL GEORGE BAKER COOк, of 98 Queen's Gate, in the County of
London, Manufacturer, 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 :-
My invention relates to improvements in horseshoe bending and swaging or rolling
machines.
In order that my invention may be clearly understood I will now describe the
same with reference to the accompanying drawings in which
Figure 1 is a side elevation of my improved horse-shoe-bending machine.
Figure 2 is a top plan of the same.
Figure 3 is a side elevation of a portion of my improved machine showing the
relative position of the stripper and its actuating mechanism, the several shafts being
shown in section.
Figure 4 is a rear elevation of the stripper-head and supporting lever detached.
Figure 5 is a side elevation of my improved horseshoe-swaging machine, broken
away at its middle part to show the presser-rolls in cross-section.
Figure 6 is a top plan of the same.
Figure 7 is an edge view of one of the die-supporting links of the endless carrier,
detached.
Figure 8 is a top plan of one of the shoe-supporting swaging-dies detached.
Figure 9 is a side elevation of the same.
Like letters denote corresponding parts throughout the drawings.
Referring now to Figures 1 to 4, A is the frame of the machine provided with
the strengthening flange or rib A¹ and a supporting leg A2, under its forward end.
The anvil A is secured to or made a part of such leg and supports the forming-
die B, detachably secured to the anvil by the bolt B, and nut B. The bending-
jaws C and C extend rearwardly in the form of operating arms C2, and C³, which
are fulcrumed upon pivots C, and C, fixed in the carrier C, movable upon the
slideway A', formed on the main frame. The jaws are each provided with an
underlying support C, adapted to carry the horse-shoe blanks at the proper level
to engage the fixed forming-die as the blanks are severally engaged by the jaws
when the jaw-supporting carrier is moved backward. That portion of the jaws
which engages a
blank is made in the form of a friction-roller in the usual
Each of the jaws is also provided with an overlying guide C³, which
overlies the blank while it is being bent to form the toe-portion of the shoe,
and keeps all parts of the blank in approximately the same horizontal plane.
These guides are adjustably secured to the jaws by the screw-threaded bolts C',
and C. The blanks are preferably inserted from the side between their supports
and guides and pushed through to the stop A, which is adjustably secured to the
main frame by means of the screw-threaded bolt A'.
manner.
The dotted lines a represent the position of a blank in engagement with the stop
between its supports and guides in position to be bent around the forming-die by
the bending jaws. The slide-carriage which carries the bending-jaws is connected
by the links D, with one arm of the bell-crank lever D', mounted upon the shaft D³,
supported in the bearings D³, in the uprights D', erected from the main frame.
The other arm of the bell-crank lever is connected by pitman D³, with the

page_text: crank-shaft D. The crank-shaft has its bearings in the main frame and is provided
with an elliptical gear-wheel D', fixed thereon to engage with a similar gear wheel E,
fixed upon the driving shaft D³, which has its bearings in the main frame and is
provided with the fly-wheel D', fixed thereon. The elliptical gear-wheels are
connected by the rod D, and each is provided with teeth on the segments bisected
by its major axis, as shown, and in the usual manner. The pitman also serves to
actuate the stripper or clearer F, which is a rock-lever fulcrumed upon the shaft F',
supported by the main frame. The short arm of the stripper-lever is connected
by link F, with the short arm of the rock-lever F³, mounted upon shaft E¹,
supported by the main frame, and the long arm of the latter lever is connected
with the pitman by the link F* as shown in Figure 3.
The reciprocating movements imparted to the slide-carrier by the mechanism
above described cause the jaw-pivots to reciprocate in straight lines, but the jaw-
rolls which engage with the blanks have a curved path determined by the shape
and position of the stationary pattern-cams H, and H'.
The friction-rolls C2, and C, on the jaw-arms travel along the curved surfaces
of the cams, and when the slide-carrier reaches the limit of its backward movement
they occupy the position indicated by the dotted circles C2, and C¹³, in Figure 2 :
and the blank-engaging rolls on the jaws occupy the position indicated by the
dotted circles C, C in the same figure.
The position of the blank after it has been bent and formed on the forming-die
is indicated by the dotted lines b in Figure 2.
The cams H, are shaped to give the desired form to the bend in the toe of the
shoe, and the cams H', to give the desired form to the heel of the shoe. If the
jaws are opened to their limit when forming the toe-bend, as heretofore practised,
an imperfect bend is formed caused by the great resistance of the. wide middle part
of the blank which prevents it from taking the shape of the former. By closing
the jaws and first engaging the blank near its middle part, that part is first bent to
the shape of the former. Then by allowing the jaws to gradually open under
control of the descending cams H, H, the bend and form given the toe portion of
the successive shoes are uniform and correct. After-making the toe-bend, the jaws
are partially closed to form the heel-portion of the shoe by means of the ascending
cams H', H.
The several cams are made detachable and adjustable so that by changing or
adjusting the position of the cams, any desired form or size of shoe may be obtained
with my improved machine.
The cams are provided with elongated bolt-holes H2, adapted to receive the
bolts H3 by which they are detachably and adjustably secured to the cam-bar H
The cam-bar is also adjustably secured to the main frame by means of the attaching-
bolts H, passing through holes in the flange A, and elongated bolt-holes H, in
the bar, and the adjusting-screws H', inserted in screw-threaded apertures in the
vertical flange A10, on the main frame.
The heel of the formed shoe, as shown by the dotted lines in Figure 2, projects
to the rear of the forming-die in position to be engaged by the stripper-head, which
in passing from the position shown by the full lines to that indicated by the dotted
lines in Figure 3, first lifts the heel of the shoe from the die and then throws the
shoe forward into the opening A, in the main frame, through which it descends
by gravity leaving the die free to receive the next blank.
To remove the formed shoe from the die, the heel must be lifted above the
narrow heel-part of the die, before a forward movement is imparted to the shoe;
otherwise the arms of the shoe would be spread by the wider toe-part. of the die.
It is necessary therefore, to pivot the stripper below and at the front of the
forming-die to give the requisite upward and forward movements at the proper
times when a vibratory stripper is employed; and whatever the kind of movement
whether vibratory or reciprocatory, it must be first upward and then forward over
the die, to first free the shoe from the heel of the forming-die and then force the
shoe laterally or forwardly off the die.

page_text: Various attempts have been heretofore made to construct a horizontal horseshoe-
bending machine with a stationary forming-die, that is a machine having the face
of its forming-die in a horizontal plane, and the bending-jaws movable in
a horizontal plane; but the difficulty in removing the formed shoes from such a
die caused the adoption of a movable die or the vertical form of machine wherein
a reciprocating right-line movement of the stripper in a single direction only is all
that is required to push the shoe from the die so that it will fall by gravity from
the machine.
My improved form of stripper and operating mechanism enables me to employ
the horizontal type of machine with a stationary forming-die which can be operated
to do better work with greater convenience and certainty than the vertical type, or
the horizontal type employing a movable forming-die, as is well known to those
skilled in the art.
The movements of the stripper and jaw-carrier are so timed that the stripper
engages the formed shoe while the jaws are at rest in their extreme rearward
position, and remains in its extreme forward position while the jaws are passing
the forming-die on their return to their extreme forward position, which latter
position is the one shown by the full lines in the drawing.
The object of the elliptical form of gears which connect the driving-shaft with
the pitman-actuating crank-shaft is to produce a rapid movement of the jaw-carrier
during its forward movement when the jaws are idle and a comparatively slow
movement with corresponding increase of power during the rearward movement of
the carrier when the jaws are bending the blank to form a shoe. The increased
power is especially useful when the toe-benders engage the shoe-blanks near their
middle part.
The stripper-head shown in rear elevation in Figure 4, is detachably secured to
the stripper lever by means of two bolts and nuts J, and J', which enables me to
attach heads of different sizes and forms to correspond with the size and form of
forming-die employed.
J2 is an adjusting-nut, shown in Figure 3, having its ends respectively right and
left hand threaded and adapted to receive the correspondingly threaded ends of the
two-part pitman, whereby I am able to adjust the length of the pitman, to vary the
movements of the jaw carrier, by turning the nut.
J³ and J are lock-nuts for locking the parts in any adjusted position.
The second part of my invention relates to an improved machine for swaging
horseshoes after the same have been formed by bending horseshoe-blanks in any
known manner.
The object of this part of my invention is to provide an endless carrier for
swaging-dies which will cause the dies to properly present the formed shoes to the
presser-rolls to be swaged thereby, and afterward cause the swaged shoes to be
discharged by gravity from the swaging-dies. When the swaging-dies are
presented to the presser-rolls by an endless carrier movable in a horizontal plane
upon drums rotary on vertical axes, with the dies secured on one side only to the
carrier, as heretofore practised commonly, the side strain upon the parts twists the
die while passing between the rolls and frequently renders the swaging operation
defective, and the swaged shoes cannot be discharged from the dies by gravity.
According to this part of my invention I provide for the dies an endless carrier
which travels in a vertical plane upon drums rotary on horizontal axes, and provide
a supporting connection between the carrier and the opposite sides of the respective
dies, whereby the dies are properly presented to the rolls and maintained in a proper
position during the swaging operation, and afterward inverted to discharge the
swaged shoe from the dies by gravity.
Referring now to Figures 5 to 9, K is the bed of the machine, the upper surface
of which forms a table K' on which the shoe-supporting swaging-dies L rest as
they are carried to and from the horizontal presser-rolls M, M', each of which rolls
las end-bearings in the uprights K² erected from opposite sides of the bed. The
presser-rolls are located the proper distance apart for the upper roll to bear upon

page_text: a die-supported shoe when the bottom of the die rests upon the lower roll, in passing
between the rolls, and properly swage the shoe, or make it conform to the shape
of the die-surface. The supporting and swaging surfaces of the dies may be of any
known form. The dies are supported and presented successively to the presser-
rolls by means of an endless carrier comprising the chains, N, N¹, supported upon
and driven by drums in the form of sprocket-wheels, N2, N3, mounted upon
shafts N, N which have bearings in the bed K at opposite ends of the machine.
The drums are rotary on horizontal axes, parallel with each other and parallel
with the axes of the presser-rolls, whereby the carrier is made to travel in a
vertical plane bisecting the presser-rolls at right angles to their axial lines, and so
located relatively to the rolls that the carrier passes between the rolls, and from
upper to lower side of the drums.
The swaging-dies are severally provided with the usual die-center L' shaped to
fit the interior of the shoe and raised from the plane anvil-surface L2 on which the
shoe rests when presented to the presser rolls. The raised portions L' are adapted
to give to the outer surfaces of the heel of the shoe, or to maintain therein, a correct
form during the swaging operation.
The swaging-dies are severally provided on their opposite sides with a recess L
adapted to receive a supporting pivot N projecting interiorly one from each of a
pair of oppositely located links N' in the carrier-chains. The pivots are adapted
to enter the open-ended slots L', in the opposite sides of the die-block, and each is
provided on its inner end with a cylindrical head N adapted to enter the chambered
recess L' in the die-block. I am thus able to pivotally support the dies on opposite
sides which causes both sides of the dies to continuously travel at the same rate of
speed and properly present the shoes to the rolls and maintain them in proper
position during the swaging operation. The dies, thus connected with the carrier,
can be easily detached or replaced in case of breakage or wear.
It is only necessary to run the carrier around until the die to be removed is
opposite the opening O in the bed or frame, at which point the die can be easily
raised from the carrier and withdrawn through the opening and another die sub-
stituted in its place in the carrier. When the carrier-supported dies are face
upward, their backs rest upon the plane upper surface of the bed along which they
slide, and by which they are confined within the carrier.
As the dies are successively carried from between the rolls on the upper side of
the bed they are each inverted, as the carrier passes from the upper to the lower
side of the drum, and the swaged shoe falls from the die by gravity into a suitable
receptacle not shown.
The carrier-chains run parallel with each other and may be a pair of separate
detached chains, or connected at intervals, as indicated by dotted lines P in Figure 6
thus forming practically a single chain, the essential feature of this part of my
invention being a supporting connection between the carrier and two opposite
sides of the die.
By pivotally connecting the die on opposite sides with the carrier, so that the
axial line of such connection is parallel with the axes of the presser-rolls, as shown,
the die is free to oscillate on such axial line in passing between the presser-rolls,
whereby the strain upon the die and carrier is lessened.
Power is applied to the upper presser-roll through the pulley M² fixed upon the
roll-trunnion M³, and may be transmitted to the carrier supporting drums by means
of the pulley M' also fixed upon the trunnion M³, the pulley M' fixed upon the
sprocket-wheel shaft N, and the connecting belt M®.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a horseshoe-bending machine, the combination with a stationary forming-
die and bending-jaws mounted upon a horizontally movable carrier, of a vibratory
strinner nivated below and forwardly of the farming dia and mach

page_text: communicating vibratory movements to the stripper, whereby first an upward and
then an upward and forward movement is imparted to the shoe by the stripper in
removing the shoe from the die, substantially as described.
2. In a horseshoe-bending machine, the combination with a stationary forming-
die and bending-jaws mounted upon a horizontally movable carrier, of a stripper
movable up and down and transversely of the die, and mechanism for communicating
up and down and transverse movements to the stripper, whereby the formed shoe is
first lifted and released from the die by the upward movement of the stripper, and
afterward removed from the die. by a transverse movement of the stripper,
substantially as described.
3. In a horseshoe-bending machine, the combination with a stationary forming-
die, bending-jaws mounted upon a movable carrier, and a pair of toe-bending cams,
of a pair of segmental and link-connected elliptical gears, and operating connections
between such gears and carrier, substantially as described.
4. In a horseshoe-bending machine, the combination with a fixed forming-die, a
vibratory stripper, and bending-jaws mounted upon a movable carrier, of a pair of
segmental and link-connected elliptical gears, and operating connections between
such gears and the stripper and carrier, substantially as described.
5. In a horseshoe-swaging or rolling machine, the combination with a pair of
presser-rolls, and drums severally rotary on parallel axes, of a pair of parallel
carrier-chains supported and driven by the drums, and shoe-supporting dies supported
by and between the carrier-chains, substantially as described."
6. In a horseshoe-swaging or rolling machine, the combination with a pair of
presser-rolls, and an endless carrier, of a shoe-supporting die pivotally connected
on opposite sides with the carrier, substantially as described.
7. In a horseshoe-swaging or rolling machine, the combination with a pair of
presser-rolls, and an endless carrier, of a shoe-supporting die, and a detachable
stud and slot connection between the die and carrier, substantially as described.
8. In a horseshoe-swaging or rolling machine, the combination with a pair of
presser-rolls, of an endless carrier, and a shoe-supporting die pivotally connected
with the carrier on an axial line parallel with the axes of the presser-rolls,
substantially as described.
9. A machine constructed substantially as described with reference to Figures 1
to 4 or to Figures 5 to 9 of the accompanying drawing and operating as, and for
the purpose, specified.
בד
C 1
1007
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HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.