Year: 1885

page_text: I JOHN CLAYTON MEWBURN, of 169 Fleet Street, in the City of London, Fellow
of the Institute of Patent Agents do hereby declare the nature of this invention
to be as follows:-
▾
This invention relates to the manufacture of horse shoes by the method of
stamping or punching out the ready-bent shoe from a prepared bar or plate, in
contradistinction to the method of bending a straight bar to form the shoe. It
also relates to the formation of the shoe from such bar or plate with solid calks
formed on the bar or plate before the shoe is punched out. It also relates to
forming the shoe with such solid calks from a bar of combined iron and steel, in
such manner that the steel shall form the wearing surfaces for the calks, and.
the iron shall afford a softer medium for the punching of the nail-holes and the
formation of the toe-clip.
The first step in the manufacture is the building up of a pile with an iron
envelope and two parallel cores of steel extending through it, separated from each
other by a partition of iron. This pile is then heated and passed through the
rolls until it is reduced to a thick flat. bar, having iron flanks, an iron centre and
two steel cores extending through it on each side of the centre. Another pass
through the rolls forms two deep grooves in the underside of this bar, near its
opposite edges. It is then given the final pass through the rolls by which it is
reduced between the calks to the thickness desired for the sides of the shoe, with
the calks left standing on its under side, in the same relative positions as in the
finished shoe. At the same pass the upper side of the bar is formed with recessed
portions or concaves" in the proper position, relatively to the calks on the under
side, to form the "
"
concaves on the finished shoes. From this prepared bar the
shoes are then punched out, successively heel to toe, so that the grain in the shoe.
blanks extends longitudinally. The shoes are punched out of U-shape, the heels,
$6
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page_text: being spread apart some a hat wider than they should be in the finished shoe.
Each shoe is then placed in a finishing machine by which it is grasped between
lateral jaws, and the legs of the shoe pressed toward each other against a former.
Then the shoe is carried under inclined rotary creasing dies, which cut or indent,
in the iron flanks of the shoe, the undercut creases which when the shoe is in use
receive the heads of the nails. After being thus creased, the shoe is carried further
in the same machine and comes in contact with a swaging die or roller which
wipes across its front and turns up therefrom a lip of metal called the "toe-clip."
The shoe is then dropped out of the machine. Subsequently the nail-holes are
punched, and the shoe is then finished.
Referring now to the accompanying drawings, the operations will be more fully
described.
Figure 1 is a transverse section of the pile. It consists of two steel cores A, A,
and two rolled iron bars B, B, each of the latter being rolled with two channels,
which receive half of the two cores. Thus the cores are entirely enclosed by iron
which prevents the blistering of the steel. Figure 2 is a transverse section of the
grooved bar which is rolled down from this pile. It has the two steel cores A, A
extending through it side by side, and either appearing on its opposite faces or
being covered above and below by a thin coating of iron. Between the steel cores
is an iron centre B', and outside of them and forming the edges of the bar, are iron
Hanks B, B. In the side of the bar which is destined to formn the under side of
the shoes, two grooves C, C, are formed, the purpose of which will be explained
presently.
Figures 3, 4, and 6 show the prepared bar as it is formed by the final pass
through the rolls. Figure 3 is a transverse section, Figure 4 a plan of the under-
side of the bar, Figure 5 a plan of the upper side of the bar and Figure 6 an edge
view thereof. This bar has a succession of projections on its under side to form
the calks of the shoes. Across its middle portion are toe-calk projections a, a, and
close to its opposite edges are heel calk projections b, b. The projections a, a,
are no longer than the space between the grooves C, C, in Figure 2, and the
projections b, b are outside of the grooves C, C, so that where these grooves were
in the plain bar, there are in the prepared bar no projections, and only the thin
reduced portion of the plate, as will be seen by following the dotted lines x - - - - x
through Figures 2, 3 and 4. The toe calk projection a for one shoe comes nearly
between the heel-calk projections b, b for the next shoe, but instead of being in
line therewith they are set further back, as shown in Figure 4, to facilitate the
punching out of the shoes, as will be presently explained.
"
On the upper side of the prepared bar are a series of “ concaves" D, D shown
in Figure 5, being depressed spaces with beveled margins c, c, as best shown in
the transverse section, Figure 3. These are in the position to form the usual
concaves on the upper side of the shoe when the latter is punched out. The
upper side of the prepared bar is also formed with gradually-thickened portions.
extending from about opposite the centre of the concaves, and terminating over
the heel-calk projections 6, b to make the heels of the shoes thicker than their
toe-portions.
The shoes are punched from this prepared bar of U-shape, as shown by the
dotted outlines in Figure 4. This operation is performed by laying the bar
with its calk projections downward on the flat face of a female die having this
U-shaped opening through it, and having also recesses into which certain of the
calk-projections enter, and which serve as guides to hold the bar in the proper
position during the punching. The three calk-projections a, b, b belonging to one
shoe enter the U-shaped opening and when the male die descends, this shoe is cut
out and forced down through this opening, dropping out beneath. The operator
then lifts the bar and moves it ahead the length of one shoe, whereupon the next
shoe is struck out. The arrangement of the calk-projections a, b, b on the prepared
bar is such that no one of them is cut through in punching, the margin of the
pening in the female die being on an uninterrupted 'plane surface,

page_text: The U-shaped blanks as they fall from the punching press are already con-
caved and provided with solid calks. They require only to be shaped, creased,
clipped and punched with nail-holes. The first three of these manipulations can
be performed in succession at one operation in the novel-machine shown in
Figures 12 and 13, which will be presently described. The nail-holes should be
punched one at a time by a suitable punching-press.
Figures 7, 8 and 9 show the finished shoe, Figure 7 being a bottom plan,
Figure 8 a side elevation, and Figure 9 a front elevation. The shaded or tinted
portions indicate the iron and the white portions the steel. It will be observed
that the inner portions of the heel calks are of steel, and that the outer portions
or ends of the toe-calk are of steel, the middle portion of the latter being of iron.
The steel portions will resist the wear on the calks longer than the iron, so that
the calks will be preserved with sharp corners or edges, instead of wearing into
rocker form. The dotted line z in Figure 9 shows the effect of wear on the toe-
calk. The toe clip d is struck up from the front of the toe-portion of the shoe,
which is of iron to admit of this operation. The flanks of the shoe, being of iron,
furnish a soft medium in which to form the nail head creases e, e, and through
which to punch the nail holes.
Figure 10 is a front elevation of the rolls for rolling the bar, and Figure 11 is a
transverse section through the line 11-11 in Figure 10. The pile is first
passed through the groove f, then through one or more successively smaller grooves,
89 9, h and i, by which it is reduced to the desired thickness. The last reducing
groove i forms the bar with the two grooves C, C, which are cut by ribs k, k on
one of the rolls. The bar is then turned over and passed through the final groove j,
which rolls it with the calk projections and concaves, delivering the prepared bar
shown in Figures 3 to 6. The upper roll M is formed with projections to form the
concaves D, D and with depressions to form the thickened heel-portions. The lower
roll N is formed with notches or recesses to form the calk projections. The bar is
reduced at one pass through this groove j from the thick grooved bar shown in
Figure 2, to the thin plate with high calk projections shown in Figures 3 to 6.
The grooves C, C render this possible, by providing a space for the displaced metal
to flow into. The continuations of these grooves indicated by the lines --- * in
Figures 3 and 4 also serve an important purpose. The bar tends to adhere to the
lower roll by the calk-projections which are formed in the depressions therein
clinging thereto and requiring to be pulled out. Two lifting bars or guides F, F
(Figures 10 and 11) are arranged in line with the grooves C, C so that the bar as
it emerges from the rolls rides over these guides, which prevent its being pulled
down by the lower roll. These guides enter the longitudinal spaces between the
calk-projections a and b, b.
Figure 12 is a front elevation of the shoe-creasing and finishing machine herein-
before referred to. Figure 18 is a vertical transverse section thereof, in the plane
of the line 13 - - 13 in Figure 12; and Figure 14 is a fragmentary transverse
section showing the parts in a different position. Referring to these figures, G is
the main shaft of the machine, and H, H are two creaser shafts, arranged at an
angle, as shewn, and geared to the shaft G by mitre gears m, m, to revolve at the
same speed therewith. The shaft B is enlarged between the bearing frames, and
extended on one side to form a flat table I, which carries the jaws J, J for gripping
the shoe, and a central anvil or former K against which the shoe is pressed. The
centre of this anvil is raised, forming a die for shaping the inside of the shoe.
The jaws J, J are each conformed to one side of the finished shoe, and each jaw is
borne by a slide L which slides in longitudinal ways in the table I, both slides
being pressed toward the centre by cam tracks O, O engaging rollers o, o on the
slides, and pressed outward by springs. The shoe-blank is placed against the
anvil K when the table is in the position shown in Figures 12 and 13, and as
the table turns and carries the shoe upward, the jaws J, J approach and press the
shoe laterally against the anvil This is completed before the shoe reaches the top
position, where it is creased by creasing dies P, P carried by the shafts H, H. The

page_text: inclined position of these shafts enables thèse creasers to cut under-cut creases in
the shoe, as is desired. The creasing dies have each a pressure-face p, which faces
press the shoe flat-wise against the anvil.
Behind the shaft G is a clipper-shaft Q bearing on arms a clipper-roll R for
striking up the toe-clip on the shoe. This shaft Q is geared to the shaft G, and
revolves at three times the speed of the latter. As the table I carries the shoe over
backward, the roll R strikes it at the proper instant and wipes across its toe, in the
manner. illustrated in Figure 14, thus forming the toe-clip. The shoe is then
released by the jaws and drops out beneath the machine, a new shoe-blank being
placed on the table as the latter again passes up the front of the machine. One
shoe is thus finished to each revolution of the shaft G. The creasing dies P, P are
formed with four faces only one of which is used at a time. When one face wears
out the die is turned a quarter round bringing a new face into action.
This improved process makes the shoe with but few manipulations, and forms it
with iron combined with steel in such manner that each metal acts to the best
effect both during the process of manufacture and in the finished shoe. It will be
observed that in this shoe the grain of the metal extends longitudinally, or from
toe to heel, the only portion of the shoe where it crosses its outline transversely
being the toe portion, where it is thickened and strengthened by the presence of
the toe-calk.

page_text: .
Improvements in the Manufacture of Horse-shoes and in
Horse-shoe Machinery.
I, JOHN CLAYTON MEWBURN, of 169 Fleet Street, in the City of London,
Fellow of the Institute of Patent Agents, do hereby declare the nature of the
said invention for "IMPROVEMENTS IN THE MANUFACTURE OF HORSE-SHOES AND
IN HORSE-SHOE MACHINERY," (a communication from abroad by Albert Sibley;
Publisher, Jacob Russell, Manufacturer of Horse-shoes, and George Byron
Stoutenburg, Builder, all of Jefferson Street, Brooklyn, State of New York,
United States of America) 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 the manufacture of horseshoes by the method of
stamping or punching out the ready-bent shoe from a prepared bar or plate, in
contradistinction to the method of bending a straight bar to form the shoe. It also
relates to the formation of the shoe from such bar or plate with solid calks formed
on the bar or plate before the shoe is punched out. It also relates to forming the
shoe with such solid calks from a bar of combined iron and steel, in such manner
that the steel shall form the wearing surfaces for the calks, and the iron shall
afford a softer medium for the punching of the nail-holes and the formation of the
toe-clip.
"
The first step in the manufacture is the building up of a pile with an iron
envelope and two parallel cores of steel extending through it, separated from each
other by a partition of iron. This pile is then heated and passed through the rolls
until it is reduced to a thick flat bar, having iron flanks, an iron centre, and two
steel cores extending through it on each side of the centre. Another pass through
the rolls forms a shallow groove or depression along the middle portion of this bar
on both sides, leaving its opposite edges of greater thickness than its middle. It
is then given the final pass through the rolls, by which it is reduced between the
calks to a plate of the thickness desired for the sides of the shoe, with the calks
left standing on its under side in the same relative positions as in the finished
shoes. At the same pass the upper side of the bar or plate is formed with recessed
portions or "concaves," in the proper position relatively to the calks on the under
Bide to form the "
concaves on the finished shoes. From this prepared plate the
shoes are then punched out successively, heel to toe, so that the grain in the shoe
blanks extends longitudinally. The shoes are punched out of U-shape, the heels
being spread apart somewhat wider than they should be in the finished shoe. Each
shoe is then placed in a finishing machine by which it is grasped between lateral
jaws, and the legs of the shoe pressed toward each other against a die or former.
Then the shoe is carried under inclined rotary creasing dies which cut or indent in
the iron flanks of the shoe the under-cut creases which when the shoe is in use
receive the heads of the nails. After being thus creased, the shoe is carried further
in the same machine and comes in contact with a swaging die or, roller, called the
clipping-roll, which wipes across its front and turns up therefrom a lip of metal
called the toe-clip. The shoe is then dropped out of the machine. Subsequently
the nail-holes are punched, the shoe being then completed, ready for the market,

page_text: Referring now to the accompanying drawings, the operations will be more fully
described.
Figure 1 is a transverse section of the pile. It consists of two steel cores A A,
and two rolled iron bars B B, each of the latter being rolled with two channels,
which receive half of the two cores. Thus the cores are entirely enclosed by iron,
which prevents the blistering of the steel. Figure 2 is a transverse section of the
grooved bar which is rolled down from this pile. It has the two steel cores A A
extending through it side by side, and either appearing on its opposite faces, or
being covered above and below by a thin coating of iron. Between the steel cores
is an iron centre B¹ and outside of them, and forming the edges of the bar, are iron
flanks B B. In each side of the bar a shallow depression C is formed in the
middle portion, leaving the edges of greater thickness than the middle, the purpose
of which will be explained presently.
(I may here observe that the construction with two deep grooves on one side,
shown in Fig. 2 of the drawing accompanying the provisional specification, has
been abandoned by the communicants, as practical trial has proved it to be
inoperative, or but imperfectly operative, and the construction here shown has been
adopted in its place, with satisfactory results.)
Figures 3, 4, 5, and 6, show the prepared plate or bar as it is formed by the final
pass through the rolls. Fig. 3 is a transverse section. Fig. 4 a plan of the
underside of the plate, Fig. 5 a plan of the upper side of the plate, and Fig. 6 an
edge view thereof. This plate has a succession of projections on its underside to
form the calks of the shoes. Across its middle portion are toe-calk projections a a,
The toe-calk
and close to its opposite edges are heel-calk projections b b.
projection a for one shoe comes nearly between the heel-calk projections b b for the
next shoe, but instead of being in line therewith, they are set further back, as shown
in Fig. 4, to facilitate the punching out of the shoes, as will be presently explained.
On the upper side of the prepared plate are a series of "concaves " D D, shown
in Fig. 5, being depressed spaces with beveled margins, as best shown in the
transverse section, Fig. 3. These are in the position to form the usual
on the upper side of the shoe when the latter is punched out. The upper side of
the prepared plate is also formed with gradually-thickened portions extending
from about opposite the centre of the concaves, and terminating at c cover the
heel-calk projections b b, to make the heels of the shoes thicker than their
toe-portions.
" concaves
"
The shoes are punched from this prepared plate of U-shape, as shown by the
dotted outlines in Fig. 4. This operation is performed by laying the plate with
its calk-projections downward on the flat face of a female die having this U-shaped
opening through it, and having also recesses into which certain of the calk-projections
enter, and which serve as guides to hold the plate in the proper position during
the punching. The three calk-projections a bb belonging to one shoe enter the
U-shaped opening, and when the male die descends, this shoe is cut out and forced
down through this opening, dropping out beneath. The operator then lifts the
plate and moves it ahead the length of one shoe, whereupon the next shoe is struck
out. The described arrangement of the calk-projections a bb on the prepared
plate is in order that no one of them is cut through in punching, the margin of the
opening in the female die being on an uninterrupted plane surface.
The U-shaped blanks as they fall from the punching-press are already concaved
and provided with solid calks. They require only to be shaped, creased, clipped
and punched with nail-holes. The first three of these operations can be performed
in succession at one operation in the novel machine shown in Figs. 12 to 17,
which will be presently described. The nail-holes should be punched one at a time,
by a suitable punching press.
Figures 7, 8 and 9 show the finished shoe, Fig. 7 being a bottom plan, Fig. 8
a side elevation and Fig. 9 a front elevation. The shaded or tinted portions in
these figures, as well as in Figs. 4 and 5, indicate the iron, and the white portions
the steel. It will be observed that the inner portions of the heel-calks are of steel,

page_text: and that the outer portions or ends of the toe-calk are of steel, the middle portion
of the latter being of iron. The steel portions will resist the wear on the calks
longer than the iron, so that the calks will be preserved with sharp corners or
edges, instead of wearing into rocker form. The dotted line in Fig. 9 shows the
effect of wear on the toe-calk. The toe-clip d is struck up from the front of the
toe-portion of the shoe, which is of iron to admit of this operation. The flanks of
the shoe, being of iron, furnish a soft medium in which to form the nail-head
creases e e and through which to punch the nail holes.
Fig. 10 is a front elevation of the rolls for rolling the bar, and Fig. 11 is a
transverse section through the line 11-11 in Fig. 10. The pile is first passed
through the groove f, then through one or more successively smaller grooves,
as g, h and i, by which it is reduced to the desired thickness. The last reducing
groove i forms the bar with the two opposite shallow grooves or depressions C C,
which are formed by ribs k k on the opposite rolls. The bar is then passed through
the final groovej, which rolls it with the calk-projections and concaves, delivering
the prepared plate shown in Figs. 3 to 6. The upper roll M is formed with
projections D D¹ to form the concaves D D, and with depressions c¹¹ to form
the thickened heel-portions o c. The lower roll N is formed with notches or
recesses a¹ 61 61 to form the calk-projections a b b. The bar is reduced at one pass
through this groovej from the thick bar shown in Fig. 2, to the thin plate with
high calk-projections shown in Figs. 3 to 6. The depressions C C render this
possible, by rendering the bar thinner in the middle, where the prepared plate has
to be made the thinnest, on account of the concaves D D, as will be evident from an
examination of Fig. 3. It is desirable to make the plate in the middle of the
concaves D D as thin as possible, in order to reduce the waste of metal to the
minimum, as this middle portion is all punched out and converted into scrap.
The bar on passing through the groove j tends to adhere to the lower. roll N,
by the calk-projections a b b which are formed in the depressions a¹ b¹ b¹ in said
roll clinging thereto and requiring to be pulled out. Two lifting bars or guides F F
(Figs. 10 and 11) are arranged in line with the emerging bar, so that the plate as
it emerges from the rolls rides over these guides, which prevent its being pulled
down by the lower roll. These guides enter longitudinal spaces between the calk-
projections a and b b, as will be best understood by examining Fig. 4, where the
dotted lines xx show the path occupied by the guides F F as the plate passes over
them. It will be observed that the calk-projections a a are entirely between these
paths, and that the projections bb are entirely outside of them, so that the
paths traverse the level and uninterrupted surface of the plate. This feature
is of great importance, since in no other way, so far as I am aware, can the
prepared plate be separated from the lower roll without distorting it.
The rolling of the bar with depressions C C, or some equivalent formation for the
same purpose, is of great importance to the successful operation of the manufacture.
The precise shape shown in Fig. 2 is not essential, but any other formation which
will produce substantially the same results may be adopted instead. For instance,
the depression or groove C may be formed in only one side of the bar, or two or
more parallel depressions may be formed in one or both sides. Any formation
whereby the mass of metal is reduced through, or near, or on both sides of, the
middle portion of the bar, and a full thickness retained at the edges, or close to
the edges, will comply with the essential requirements of this feature of the
invention.
Fig. 12 is a front elevation of the shoe-creasing and finishing machine herein-
before referred to; Fig. 13 is a vertical transverse section thereof, in the plane of
the line 13-13 in Figs. 12 and 14; Fig. 14 is a plan, partly in horizontal section
on the line 14-14 in Figs. 12 and 13, showing the machine after it has advanced
a quarter-revolution; Fig. 15 is a fragmentary elevation, on a larger scale, partly in
section on the line 15-15 in Fig. 14; and Fig. 16 is a cross-section of the working
parts, in the same plane as Fig. 13, and showing the operation of striking up the
toe-clip.
"

page_text: Referring to these figures, G is the main-shaft of the machine, and H H are two
creaser shafts arranged, at an angle as shown, and geared to shaft G by mitre
gears m m to revolve at the same speed therewith. The shaft G is enlarged
between the bearing frames, and extended on one side to form a flat table I, which
carries the jaws J J for gripping the shoe, and a central anvil or former K against
which the shoe is pressed. The center of this anvil is raised, forming a die for
shaping the inside of the shoe. The jaws J J are each conformed to one side of
the finished shoe, and each jaw is borne by a slide L which slides in longitudinal
ways in the table I, both slides being pressed toward the centre by cam-tracks O0
engaging rollers o o on the slides, and pressed outward by springs 8 8.
The shoe-
blank is placed against the anvil K when the table is in the position shown in
Figs. 12 and 13, and as the table turns and carries the shoe upward, the jaws J J
approach and press the shoe laterally against the anvil as shown in Fig. 14. This
is completed before the shoe reaches the top-position, where it is creased by
creasing-dies P P carried by the shafts H H. The inclined position of these shafts
enables these creasers to cut undercut creases in the shoe, as clearly shown in
Fig. 15. Fig. 17 is a cross-section of one-half of the shoe, showing the undercut
crease, and showing the nail being driven, in dotted lines. The purpose of the
undercutting of the crease, in directing the nail at the proper angle while it is
being driven, is thus made apparent. The creasing dies also have each a pressure-
face p which faces press the shoe flatwise against the anvil.
Behind the shaft G is a clipper-shaft bearing on arms a clipping-roll R for
striking up the toe-clip on the shoe. This shaft Q is geared to the shaft G by
gears qq, Fig. 14, and revolves at three times the speed of the latter. As the
table I carries the shoe over backward, the roll R strikes it at the proper instant
and wipes across its toe, in the manner illustrated in Fig. 16, thus forming the
toe-clip. The shoe is then released by the jaws J J and drops out beneath the
machine, into an inclined trough T, Fig. 13. A new shoe-blank is then placed on
the table as the latter again passes up the front of the machine. One shoe is thus
finished to each revolution of the shaft G. The creasing-dies P P are formed with
four faces, only one of which is used at a time. When one face wears out, the die
is turned a quarter round, bringing a new face into action. For this purpose, the
dies have four key-ways, as shown in Figs. 13 and 16.
This improved process makes the shoe with but few manipulations, and forms it
of iron combined with steel in such manner that each metal acts to the best effect
both during the process of manufacture and in the finished shoe. It will be
observed that in this shoe the grain of the metal extends longitudinally, or from
toe to heel, the only portion of the shoe where it crosses its outline transversely
being the toe-portion, where it is thickened and strengthened by the presence of
the toe-calk.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated to
me, I declare that what I claim is :-
1. The improvement in the manufacture of horse-shoes of combined iron and
steel, which consists in forming a pile with two steel cores separated and enveloped
by iron, rolling the same down into a plate with calk-projections thereon, and
punching out the curved horseshoes from said plate in such positions that Baid
projections become the calks on the shoes, substantially in the manner herein before
described.
2. The improvement in the manufacture of horseshoes which consists in rolling
down iron or steel, or combined iron and steel, into a bar having one or more
longitudinal grooves or depressions in one or both sides, then at one pass reducing
such bar to a plate, with calk-projections left standing thereon, and punching out
the curved horseshoes from said plate in such positions that the said calk-projections
become the calks on the shoes, substantially as set forth.

page_text: 3. The improvement in the manufacture of horseshoes which consists in forming
a pile with two steel cores separated and enveloped by iron, rolling down said pile
into a bar of alternate strips of steel and iron, with its middle portion reduced by
one or more grooves or depressions in one or both sides, rolling said bar at one pass
into a plate having calk-projections standing in or partly in the steel portions
thereof, and punching curved horseshoes from said plate, in such positions that said
projections become the calks on the shoes, substantially as set forth.
4. The improved horseshoe hereinabove described consisting of alternate strips of
iron and steel, with the grain extending longitudinally of the shoe, and integral
calks each formed in or partly in the steel portions, and the centre and flanks of
iron to facilitate the formation of the toe-clip, creases and nail-holes, substantially
as set forth,
5. A horseshoe of combined iron and steel having an integral toe-calk with its
ends of steel and its middle of iron, as described, whereby the middle wears away
faster than the ends.
6. The rolls for forming the bar for the manufacture of horseshoes by the method
described, consisting of upper and lower rolls with reducing grooves, with rib k for
grooving the bar in the next to the last pass, and groovej for converting the bar
at the final pass into a plate with calk-projections and concaves, substantially as
set forth.
7. The rolls for forming the bar for the manufacture of horseshoes by the method
described, consisting of upper and lower rolls M and N, the roll N having
recesses a¹ a¹ for forming the toe-calk projections, and b¹ 6¹ for forming the heel-
calk projections, and guiding-bars F F for stripping the finished plate from said
roll, arranged longitudinally in the plane of the longitudinal spaces outside of the
toe-calks and inside of the heel-calks, substantially as and for the purpose herein-
before set forth.
8. A machine for creasing bent horseshoes, consisting essentially of a table for
carrying the shoe, combined with rotary creasers arranged at an angle to the plane
of the shoe, substantially in the manner set forth, whereby they are adapted to
form undercut creases in the shoe.
9. A machine for creasing bent horseshoes, consisting of the combination of a
table for carrying the shoe, two creasing-dies arranged at opposite angles, as
described, the inclined shafts bearing said dies, and the gearing for driving the dies
and table synchronously, substantially as described.
10. The combination of table I, creasing-dies P P, shaft and clipping-roll R
carried thereby, connected and operating substantially as described, whereby at
one operation the shoe is creased and its toe-clip is struck up.