Improved Elastic Horse-shoe Screw-calks.
Year: 1896

page_text: Date of Application, 17th Jan., 1896-Accepted, 4th Apr., 1896
COMPLETE SPECIFICATION.
Improved Elastic Horse-shoe Screw-calks.
We, CARL RICHTER, of the Royal Constabulary, and ERNST HAERTEL,.
Master Mason, both of Mauritiusstrasse 16, Breslau, in the Empire of Germany,
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:
With the sharp screw-calks hitherto used for horse-shoes it is impossible to-
prevent horses, especially saddle horses, from injuring themselves by kicking. This
inconvenience is especially observable in military training during the winter, and.
in the riding school.
To avoid this great inconvenience we have invented the calk which is shown in.
the annexed drawing and which we have already proved to be efficient.
In the annexed drawing
Fig. 1 is a view of the new elastic screw-calk c with the hexagonal collar g for
fastening.
Fig. 2 is a section of the new elastic screw-calk c, the centre stud
in elevation.
Fig. 3 upper view of the screw-calk without the elastic filling a.
Fig. 4 an elevation of the centre stud.
being shown,
This new elastic calk consists of an iron socket c provided with a screw in which-
socket the elastic material a is placed. This latter is of rubber, leather, or
equivalent material and is punched out in the centre for passage of the stud b,.
which is of steel.
The one half d of the stud 6 is conically formed, the other half forms in section
a cross. The walls of the socket c are enlarged a little towards the inside in order
that when the stud b is pushed in, the elastic filling a will be pressed outwards in.
the enlarged part of the socket thus preventing its falling out.
The screw-threaded part of the socket c is perforated and this hole serves to
receive the conical part d of the stud b, it being also conical the stud 6 will thus
tend to fix itself always more securely by the treading of the horse.
The calk preferably is formed with the hexagonal flange g (Fig. 1) for screwing
it in.
The length of the stud is so measured that it does not project beyond the elastic
filling a. Thus the iron does not touch the ground, that is to say, when the horse
treads lightly; therefore the horse generally will walk elastically.
When
however on slippery places or smooth ground, or when pulling heavy loads, the
horse is forced to make greater efforts, its weight comes more fully into play and
thereby the elastic filling a is more compressed and the stud 6 will surpass the
elastic filling. The cross e of the stud thus engages, the ground over which the
borse is moving and gives sufficient resistance.
The elastic calk above described has at other times no sharpness as it is provided
with an elastic filling which on the kicking, etc., of the horse, cannot cause injury.
The new elastic calk can be used. on any horse, especially on horses with sore or
tender feet. The jar on treading is not transferred by the elastic filling to the
hoof of the horse and to this extent sparing all horses.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is-
An elastic screw-calk for horse-shoes, having an elastic filling a and a central
stud which secures the filling and which is provided with a cross-like portion,
generally not projecting beyond the said filling in order that this stud b may
operate only on the sliding or greater efforts of the horse as described.
Dated this 17th day of January 1896.
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C., Agents to Applicants.