An Improved Process and Apparatus for Closing Cracks in the Hoofs of Horses.
Year: 1899

page_text: An Improved Process and Apparatus for Closing Cracks in the Hoofs
of Horses.
A communication to me from NIK. BRUNS, of Bojanowo, Posen, in the Empire
of Germany, Veterinary Surgeon.
I, EDMUND EDWARDS, of the Firm of Edwards and Co., Chartered Patent
Agents and Engineers, of 65 & 66, Chancery Lane, London, in the County of
Middlesex, do hereby declare the nature of this invention to be as follows:-
This invention has for its object an improved process and apparatus for draw-
ing together the edges of cracks, which are likely to occur in the horny covering
of the hoofs of horses, rendering the horse unfit for work, the process rendering
the animal again fit for work.
The process consists in drawing together the sides of the crack by means of a
suitable screw and corresponding nut.
In order to put the invention in operation, a screw or bolt which is passed
through the sides of the crack in the hoof, is-together with its head at one end
and a nut screwed upon its other end-so inserted and contained in recesses
made in the hoof, that the horse is not liable to be injured.
In cases where the position can be so fixed that no such injury is possible, the
device may be fitted, without further trouble, on the outer side of the hoof.
The body of the screw or bolt is fitted in a hole bored to receive it, the nut
having been introduced into a recess or enlargement of the hole, so formed that
the sides of the hole do not injure or alter the shape of the bolt when the edges
of the crack are drawn together by screwing up the nut.
For the same object, that its to say, to prevent the shape of the bolt being
affected, and also to enable the same tightening screw to be used for different
holes and sents, the washer under the nut is so formed that it can take a firm
position upon a support or ring suitably shaped to receive it on one side, the
other side fitting against the inclined face of the notch cut in the hoof to
receive it.
The bead of the bolt and the back of the support just described, by which
the pressure of the nut is transmitted to the hoof. are bevelled to fit the inclined
faces of the recesses cut in the hoof, so that by screwing up the nut a pressure
is produced perpendicular. or nearly so, to the edges or sides of the crack in
the hoof, and also a slight stretching outward of the horny surface is produced,
and a better closing of the crack effected.
The apparatus may be modified to suit different circumstances. Thus, for
very small cracks, the flat bottom of the nut may rest directly upon the support
in the notch. Or, where the horny mass is very thin, the bolt may lie in a
simple recess made in the hoof from outside, and the head and the support for
the nut may be in the opposite position or angle to that already described, so
D

page_text: that the corresponding surfaces on the hoof form an angle wider on the outer
side.
Doted this 2nd dow of Ver 1800
Dated this 2nd day of Mor 1800
EDWARDS AND Co..
Chartered Patent Agents, 65 and 66, Chancery Lane, London,
Agents for the Applicant.
An Improved Process and Apparatus for Closing Cracks in the Hoofs
of Horses.
A communication to me from Nik. BRUNS, of Bojanowo, Posen, in the Empire
of Germany, Veterinary Surgeon.
I, EDMUND EDWARDS, of the Firm of Edwards and Co.. Chartered Patent
Agents & Engineers, of 65 & 66, Chancery Lane, in the County of Middle-
sex, 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, and accompanying drawing, that is to say:-
For
This invention has for its object an improved process and apparatus for draw-
ing together the edges of cracks which occur in the horny covering of the hoofs
of horses, rendering the horse unfit for work.-the improved process rendering
the animal again fit for work. The process consists in drawing together the
sides of the crack by means of a suitable screw and corresponding nut.
this purpose a screw is used which is passed through the sides of the crack in
such manner that they can be drawn together without the screw becoming bent,
and thereby becoming fixed, or held so that it cannot afterwards be removed
from the horny hoof.
The bending of the screw is prevented, by making it so that either at the end
at which a nut is screwed upon it, or at the other end, at which a head is
formed, or at both ends, the pressure is exerted upon inclined edges on corre-
sponding abutments or washers fitted against the hoof.
In the accompanying drawing, which is in illustration of the invention:-
Figure 1 shows the inner side of the hoof with the screw attachment.
Figure 2 is a horizontal section through the hoof, showing the inclined edges
both under the head of the screw and under the nut.
Figure 3 is a similar view, with the inclined edge under the nut only.
Figure 4 is a separate view showing the head of the screw in Figure 2, the
body of the screw or bolt being shown in section.
Figure 5 is a separate view, showing a front view of the abutment or washer
against which the inclined edge or washer under the nut, passes.
A. screw or bolt a, which passes through the sides of the crack . has its head a
and nut d so fitted in recesses c, e, made in the hoof, that they are protected from
any injury.
In case the abutment which takes the pressure can be formed in a position in
which it is not exposed to injury, it may evidently be simply arranged upon
the outer surface of the hoof.
The bolt or body a of the screw is inserted in a straight hole g large enough
for the screw to pass through. In order that the sides of this hole. when the
edges of the crack are drawn together, many not bend or distort the bolt, which

page_text: would make any subsequent withdrawal of the latter difficult, the outer side of
the middle of the bolt is thinned down.
For the same reason to prevent any bending or distortion of the bolt-and also
to be able to use the same size of screw for different holes and abutting surfaces, the
washer under the nut d is formed with a transverse edge, which presses against,
and can adjust itself in, the abutment . The head c of the bolt can also be
formed and adjusted in the same way (Figure 2), a projecting edge el being
formed at each side of it (Figure 4), and pressing against the abutment i.
The head c of the bolt a, the abutment i for the head, and the other abut-
ment i by which the pressure of the nut is transmitted to the hoof, have their
inner surfaces roughened, and lie at an angle corresponding with that of the
similar surfaces in the hoof, against which they are pressed, and at the tighten-
ing of the nut a pressure is produced perpendicular or nearly so to the sides of
the crack, and also a slight stretching of the horny substance of the hoof, and
thereby a better closing of the crack under uniform pressure is effected.
The devices used may be modified to suit different circumstances. Thus, for
very small cracks the washer with the edge below it may be omitted, and the
flat bottom of the nut may rest directly upon the abutment i (as the head of the
screw does in Figure 3). Or, where the horny part of the hoof is very thin.
the bolt itself may lie in a simple recess made in the hoof from outside. and the
supports or abutments can have an opposite direction or inclination to that
shown in Figures 2 and 3, so that the corresponding surfaces on the hoof form
an angle wider at the outer side.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what.
I claim is:-
For closing cracks in hoofs, a bolt, inserted in a hole or notch passing through
the sides of the crack, and thinned down outside in its middle, a head at one
end of the bolt, and a nut at the other end, being arranged so that when the
sides of the crack in the hoof are drawn together, their inner surfaces can adjusi.
themselves to the proper position against the surfaces or abutments on which
they press. as they draw together the edges of the crack, substantially as
described and illustrated.
L
1
1000