Improvements in Horse Shoes.
Year: 1892

page_text: Date of Application, 18th Oct., 1892-Accepted, 4th Feb., 1893
COMPLETE SPECIFICATION.
Improvements in Horse Shoes.
I, CHARLES BONEL HULBERT, of Ironia, Morris Co., New Jersey, United
States of America, Blacksmith, 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 that class of horse shoes which have
removable calks, and the object of my invention is to produce a cheap, strong
and durable shoe of this class, in which means are provided for quickly changing
the calks, so
as to provide the shoe with a calk of any desired style, and to
provide a perfectly secure means of fastening the calks, and also to provide a
simple and secure method of holding the toe-piece of the shoe in place.
To this end my invention consists in the horse-shoe, the construction of which
will be hereinafter described and claimed.
Reference is to be had to the accompanying drawings forming a part of this
Specification, in which similar figures of reference indicate corresponding parts in
all the views.
Figure 1 is a longitudinal section of a horse-shoe embodying my invention, the
section being taken centrally through the toe calk and through one of the heel
calks;
Figure 2 is an inverted plan of the shoe, with a portion of the toe calk and one
of the heel calks broken away;
Figure 3 is a broken front elevation, partly in section, showing in detail the toe
piece and the means of fastening the toe piece and toe calk;
Figure 4 is a detail perspective view, partly in section, of the heel of the shoe
with the calk removed;
and
Figure 5 is a detail view of a peculiar form of nail used to fasten the toe calk;
Figure 6 is a perspective view of a special tool used in fastening and unfastening
the calks.
The shoe 10, is in general like an ordinary horse-shoe and may be made in any
desired style, it having the usual nail-holes 11, on opposite sides thereof, and the
toe of the shoe is thickened on the underside, as shown at 12, and in this thickened
portion is a transverse dovetail groove 13, extending from one end of the thickened
portion to nearly the opposite end, the groove being open on the under side and
having its upper wall slightly convex, as shown at 14 in Figure 1.
This groove or recess 13 is adapted to receive a tongue 15, shaped to fit the
groove, and formed on the upper side of the toe calk 16, which calk may be of
any desired shape, so long as it has a flat upper shoulder to rest against the
thickened portion of the shoe, and the tongue 15 is prolonged at one end, so as to
extend a little beyond the calk, as shown at 17, and lie flat against the body portion
of the shoe 10, as best shown in Figures 2 and 3, this prolonged end of the tongue
having at its outer end, a notch 18, and adapted to receive a nail 19, which nail
may be also driven through one end of the nail holes 11, and will thus bind the
toe calk securely in place.
It will be seen that there will be no particular strain on the nail 19, it serving
merely to prevent the calk from slipping out. The nail 19 has a perforated
head 20, and when the calk is removed, the special tool 21, shown in Figure 6, is
used, this tool having one bent and pointed end 22 and having another bent chisel
end 23. When the nail 19 is to be removed, the point 22 of the tool is inserted in
the perforation of the nail head, and the nail may be pried out so as to be grasped
by ordinary pincers. In the front of the shoe 10 is a dovetail vertical recess 24

page_text: which tapers upward and which is adapted to receive a common form of toe
piece 25, and the toe piece is prevented from dropping into the groove by the toe
chalk 16, the front upper portion of which extends beneath the toe piece. If, for
any reason, the toe calk should not be wide enough to extend beneath the toe
piece it may, while hot, be flattened slightly with a hammer, so as to extend
beneath the toe piece and properly support the same.
The heels 26 of the shoe are thickened slightly and each heel has in its front
side, a rearwardly-extending recess or pocket 27, which is adapted to receive a
rearwardly-extending lug 28 on the heel calk 26. The heel calk 29 may be of any
approved style and has a shoulder 30 adapted to extend opposite the front portion
of the heel 26, and the tongue 28 extends horizontally rearwardly from the
shoulder, as best shown in Figure 1.
The heel calk 29 has a forwardly extending tapering portion 31, which is flat
on the upper side so as to rest firmly against the body of the shoe 10, and near
the front end of this prolongation is an upwardly-extending stud 32 adapted to
enter the recess 33 in the under side of the shoe, and thus prevent the calk from
slipping out of place. The heel calk is also provided near the front end of the
prolongation 31, with a nail hole 34 adapted to register with one of the nail
holes 11, and when the shoe is applied to the foot of the horse a nail may be
driven through the hole 34, and through the horse's hoof, thus fastening the calk
in place. Instead of using a long nail, a short nail may be used, as shown in dotted
lines in Figure 1, and after the nail has been driven through the prolonged end 31
and through the body of the shoe it may be clinched on the upper side of the shoe
by means of the tool 21, the chisel point 23 being placed against the upper portion
of the nail and then by striking upon the tool with a hammer, the nail may be
clinched.
At the extreme front ends of the prolongations 31 are notches 35 which are
made to come adjacent to the holes 11 of the shoe and when the nails are driven
through the shoe, they will engage the notches and serve as an extra precaution
against the slipping of the heel calks. The studs 32 cause the heel calks to
hang to the shoe body, and when the calks are removed the chisel point 23 may
be driven between the prolonged ends 31 of the heel calks and the body of the
shoe, thus loosening the calks and enabling the tongue 28 to be withdrawn from
the recess of pocket 27.
From the foregoing description, it will be seen that the calks may be made of
any desired shape, that is they may be either sharp, or flat, and they may be
easily and securely fastened to the shoe while it is upon the horse's foot, and as
easily removed, and as the calks usually wear out sooner than the shoe, it will be
seen that
may be found necessary to shift the calks without shifting the shoe.
Having thus fully described my invention, I claim as new, and desire to secure
by Letters-Patent :
1. As an improved article of manufacture, a horse shoe having a recessed toe
and recessed heels, detachable calks having tongues to fit the recesses of the toe
and heels, and having prolonged ends with notches and holes therein adapted to
register with the nail holes of the shoe, substantially as described.
2. The combination with the shoe having a, thickened toe, with a dovetail
groove or recess therein, of a toe calk having a tongue adapted to slide into the
recess and having a notch in the outer end of the tongue which notch is adapted
to register with the nail hole of the shoe, substantially as described.
3. As an improved article of manufacture a horse shoe having dovetail and
vertically-tapering recesses in its toe, a detachable toe piece adapted to fit in the
said recesses, and a removable toe calk adapted to overlap the underside of the
recesses and toe piece, substantially as described.
4. The combination with a horse shoe having thickened heels with forwardly-
opening recesses therein, of the detachable heel calks having rearwardly-extending
tongues to enter the heel recesses, and having forwardly extending ends with studs

page_text: thereon adapted to enter the recesses in the body of the shoe, said forwardly
extending ends having nail holes therein to register with the shoe nail holes, sub-
stantially as described.
5. The combination with a shoe having thickened heels with forwardly opening
recesses therein and recesses in its underside and in front of the heels, of the
detachable calks having rearwardly-extending tongues to enter the heel recesses
and forwardly extending portions adapted to fit against the bottom of the shoe,
said forwardly-extending portions having studs thereon to enter the shoe recesses,
holes therein to register with the nail holes of the shoe, and notched front ends
arranged adjacent to the nail holes, of the shoe, substantially as described.
Dated this 17th day of October 1892.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.