Year: 1898

page_text: Date of Application, 1st Mar., 1898-Accepted, 2nd Apr., 1898
и потвевноев.
I, WILLIAM RAYMOND KINNEAR, of Columbus, in the County of Franklin, and
State of Ohio, United States of America, 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 :-
The object of my invention is to provide a shoe of simple and economical form,
adapted to receive calks that may, when worn, be easily and quickly replaced by
new ones, thereby obviating the now common expense of frequently shoeing the
horse.
My invention consists, first, of the improved construction of the shoe, and secondly,
in the improved form of calk hereinafter described and claimed.
I have illustrated my improvements in the annexed drawings in which :-
Fig. 1 is a plan view of the under side of the shoe with one of the heel calks
removed.
Fig. 2 is a sectional view taken on the lines x-x of Fig. 1.
Fig. 3 is a vertical central sectional view of a modified form of calk.
Fig. 4 is a side view of another modification and
Fig. 5 is a side elevation of an instrument that may be employed to remove and
insert the calks.
In the several views like characters of reference designate corresponding parts.
1 designates the shoe proper, the body of which is generally flat and thin and made
with screw-threaded bosses or projections 2, for the reception of calks 3.
The screw-
threaded bosses may be of any number, but two at the toe and one at each of the
parts of the heel, as shown, will ordinarily suffice. I make the calk hollow in the
form of a short tube, with the edge of its treading part 3ª, rather sharp so as
the better to take into the road or ice upon the road, and with a threaded shank 3b,
to enter the threaded boss 2 on the shoe proper. Formed upon the under side of the
shoe proper and lying parallel to the sides of the shoe between the toe and heel
bosses are two ribs or beads 4 and 5, the inner rib 4 being of about the same altitude
as the bosses, and the outer rib 5 being of less height, as shown. The nail holes 6
are made in the shoe between these ribs 4 and 5, as indicated.
If desired, the calk may be made with a shoulder 7, as indicated in Fig. 3, at the
base of the threaded part, so that when the calk is turned into the shoe said shoulder
may be in firm contact with the end of the boss and so relieve the strain on the
thread, but when the thread is made large this will not be necessary. The inner wall
of the calk is made with a square or other non-circular opening or socket. 3° located
below the outer edge or tread portion of the calk to receive a fitting key by which
the calk may be turned into or out of the shoe.
In placing the socket 3 below the tread portion of the calk the socket is protected
against wear and disfiguration. Such a key is shown in Fig. 5, where the end 8 is
indicated as made so as to fit a square hole or socket. The other end of the instru-
ment may be pointed as shown at 9, and therefore conveniently used to pick out a
stone or dirt that may happen to lodge in the cavity of the calk. The socket 3° is
also made to extend beyond or above the tread face of the shoe when in position so
J

page_text: that should the calk be worn entirely down or even with the shoe a part of the socket
will remain to be engaged by the wrench.
In Fig. 4 I have illustrated a hollow calk according to my invention, having a
portion of its tread removed or omitted, so that in its contact with icy pavements the
ice shall be penetrated but not entirely broken, and therefore, a firmer and surer hold
of the shoe upon the pavement afforded.
The ribs 4 and 5 between the calks strengthen the shoe, and by making the inner
bead or rib of greater altitude than the outer one the nails are more easily driven into
place and their heads protected.
With the shoe hereindescribed, the shoe proper is nailed to the hoof to remain an
indefinite period, and the calks are renewed as fast as they are worn down. To renew
the calks does not require the skill of a professional shoer; it may be done as well
and as quickly by the hostler or driver of the horse; thus a large saving of expense
and time to owners is effected.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed declare that what I
claim is :-
1. A horseshoe formed of the body portion 1, hollow "internally-threaded bosses or
projections 2, rib 4, extending between the bosses, and hollow externally-threaded
calks to fit the bosses, the said calks having an internal socket located below the
outer edge or tread portion of the calk to receive a wrench, substantially as shown
and described.
2. A horseshoe having bosses or projections 2 threaded to receive a calk, and a
hollow externally threaded calk to removably enter said bosses having a sharp tread
and its inner end solid or closed and also having an internal polygonal wrench-
socket the walls of which are below or beyond the outer edge or tread portion
of the calk and extend beyond or above the tread face of the shoe when in position,
whereby said polygonal socket is protected against injury from contact with the
pavement, substantially as shown and described.
Dated this 1st day of March 1898.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.