Year: 1895

page_text: Date claimed for Patent under Sect. 103 of Act,
}
being date of first Foreign Application (in 20th Mar., 1895
United States of America),
Date of Application (in United Kingdom), 29th July, 1895
Complete Specification Left, 29th July, 1895-Accepted, 31st Aug., 1895
I, JOHN WALLACE MILLER, of Frymire, in the County of Berks, and State
of Pennsylvania, United States of America, Gentleman, 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 :--
This invention relates to an improvement in horseshoe calks, and the object
thereof is to simplify and improve the construction of such devices, and to provide
one which shall be capable of being applied to or removed from a horse shoe
without detaching said shoe from the hoof; which may be quickly and easily
renewed when worn out or unfit for further use, and which shall be thoroughly
efficient in preventing the animal from injuring himself on slippery or icy
pavements.
The present invention consists in a device comprising a centrally perforated
internally shouldered and threaded nut, a shouldered and pointed calk seated
therein, and a double ended screw adapted to lock said calk in place and also
engage a threaded perforation or socket in the shoe.
It further consists in certain features and details of construction and arrangement
of parts hereinafter fully described, illustrated in the drawings and pointed out in
the claims.
In the accompanying drawings
Figure 1 is a perspective view of a horseshoe provided with my improved calks.
Fig. 2 is a detail perspective view of a complete calk constructed in accordance
with my improvements.
Fig. 3 is a similar view of the double-ended screw.
Fig. 4 is a similar view of the nut.
Fig. 5 a similar view of the pointed and shouldered calk.
Fig. 6 is a vertical section through a portion of a horseshoe showing also the nut,
calk, and double-ended screw in section and applied to the shoe.
Fig. 7 is a detail perspective view of a rounded or blunt calk for use in dry
weather.
Similar numerals of reference indicate corresponding parts in the several figures
of the drawings.
Referring to the drawings 1 designates a nut provided with a polygonal outer
face adapting it to receive and be tightened by a wrench and preferably rounded
or convex on its lower face, as shown at 2, the upper face of said nut being flat
.
Q

page_text: adapting the same to be screwed snugly against the lower face of a horse shoe.
Indicated at 3. The nut 1, is provided with a central perforation extending
vertically through it, the upper portion of said perforation being screw threaded,
as shown at 4, and the lower portion of said perforation being reduced in diameter
at 5 to form a shoulder 6 which is preferably inclined.
The calk proper designated by the numeral 7 is cylindrical in cross section and
pointed at its lower end 8 for adapting it to engage and obtain a firm hold upon
slippery or icy pavements, although the lower end may be blunt or rounded off
as shown in Fig. 7 in any preferred manner for use upon dry pavements and roads.
The upper end of the calk 7 is shouldered or provided with an annular flange 9
having an inclined base 10 corresponding to and adapted to fit snugly against and
be held in place by the internal shoulder 6 of the nut 1.
11 designates a double ended screw or a threaded 'shank of the same diameter
throughout formed with a screw thread extending from end to end. The screw 11
is provided at either end with "an eye or slit 12 by means of which said screw may
be engaged with or withdrawn from either the nut 1 or the horse shoe 3.
In operation the shouldered calk 7 is inserted in the central perforation of the
nut 1 until its shoulder 10 rests upon the corresponding internal shoulder 6 of the
nut. The double-ended screw 11 'is' then "threaded into the upper screw threaded
portion 4 of said nut until it meets with the upper end of the calk 7. By means of
the eye or slit 12 in the upper end of the screw the latter with the aid of a screw
driver may be tightened against the head of the calk thus securely locking the
latter in place.
The upper portion of the screw 11 is now inserted into a threaded perforation or
socket 13 in the horse shoe and by means of a wrench' applied to the nut 1, the
device as a whole is firmly secured to the lower face of the shoc. By means of the
double-ended screw' and the eye or slit in either end thereof when the nut 1 is
removed for the purpose of sharpening or renewing the calk 7 said screw may be
removed either from the nut or the shoe according to which part it remains in,
which constitutes a great advantage and improvement over devices of a similar
nature heretofore constructed.
By having two sets of calks, one set pointed or sharpened as in Fig. 5, and the
other blunt or rounded off as in Fig. 7, the shoes may be equipped with either. and
adapted for use on either dry or wet and slippery pavements, as desired.
Various changes in the form, proportion and the minor details of construction
may be resorted to without departing from the principle or sacrificing any of the
advantages of this invention.
Having thus described the invention what is claimed and desired to be secured
by Letters Patent is
1. In a horse shoe calk, an internally threaded nut, in combination with a
shouldered calk fitting therein, and a double-ended screw for locking, said calk in
place within the nut and connecting the device as a whole with a horse shoe,
substantially as described.
2. In a horse shoe calk, an internally threaded nut, in combination with a
shouldered calk fitting therein, and a screw provided with a thread extending from
end to end thereof, and having an eye or slit in either end whereby the same is
adapted to be applied to or removed from either the nut or the horse shoe or both,
substantially as specified.
3. In a horse shoe calk, an internally threaded and shouldered nut, a shouldered
calk fitting therein, and a double ended screw adapted to lock said calk within the
nut and to unite the device as a whole to a horse shoe, in combination with a horse
shoe having a screw threaded perforation or socket for the reception of the upper
portion of said double ended screw, substantially as described.
4. A horse shoe calk comprising a centrally perforated internally threaded and
shouldered nut, a pointed and shouldered calk seated within said nut, and a double

page_text: ended screw threaded from end to end and provided with an eye or slit in each end
whereby the latter may be united to or removed from either the nut or the shoe,
substantially as and for the purpose described.
Dated this 20th dow of Tul 100%
BOULT & WADE,
Agents for the Applicant.