Year: 1886

page_text: I, RICHARD M DOUGALL of 82 Union Street in the City of Glasgow, Commission
Agent, 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 has for object to effect the shoeing of horses without the use of
nails entering the hoofs, and to that end it consists in so forming a horse-shoe that
when fastened in place it may firmly grip the hoof and be thereby securely
retained while being readily unlocked, removed and replaced.
The improved horse shoe constituting my invention is represented under several
modifications in the accompanying drawings in which figure 1 is a side elevation
and figure 2 a plan, of one form of the shoe consisting of a permanent shoe piece
provided with removable wearing surfaces, figure 3 is an inverted plan of a
modified form thereof, and figures 4 and 5 are respectively an elevation and
inverted plan of a shoe jointed at the toe and provided with means of attachment
to the hoof. The improved horse shoe under one modification comprises a
permanent shoe piece A, which may be formed in two or more parts jointed
together at a, on each side as shown in figures 1 and 2, or at one side only as
shown in figure 3 or at the toe. To the permanent shoe A, calks or wearing
pieces B, are attached preferably by means of dovetailed grooves formed at
intervals apart in the underside of the shoe whereinto the calks are inserted and
are there retained by means of screws or pins b, passing through the shoe and into
the calks or by forming thin flange pieces upon the calks B, and bending them over
upon the inner or outer or both sides of the shoe when the calks are in place, or
both means of attaching the calks to the permanent shoe may be used together to
afford greater security.
The calks or wearing surfaces may be removed by withdrawing the screws or
pins and shearing off the bent over flanges and fresh calks substituted for them.
Upon the upper side of the shoe A, are fixed at intervals apart a number of
upwardly projecting ribs C which are suitably inclined and shaped to fit closely
against the wall of the hoof. The lower part of each of these ribs is bent inwards
at an angle and is made in the form of a dovetailed sole piece C¹ which enters a
correspondingly dovetailed groove or recess formed in the permanent shoe. The
dovetailed soles of the ribs C are adapted to enter the grooves or recesses from the
inner side of the shoe and screws or pins may be provided to retain them in place.
Or instead of fitting the clamping ribs and calks in separate pieces as shown, they

page_text: may be welded on or formed in a piece with the shoe. The shoe is fitted upon the
hoof by opening up the rear end or heel upon the joint or joints a, and it is secured
upon the hoof by closing the heel part so that all the ribs C, bear on the hoof, and
then tightly clamping the hoof between them by means of a screw bolt D, which
is fitted to pass through projecting horns A¹ upon the heel of the shoe. The
bolt D, is T-headed and in fitting it through the horns A¹, the head d is passed
through an oblong slot in one of the horns, and is turned at right angles to fit in a
recess in the horn which prevents it slipping round, the screwed end of the bolt
being enlarged at the point to prevent the nut coming off, while permitting of
its being unscrewed to disengage the bolt. Any other form of coupling or locking
piece may be used in lieu of the bolt D. In some cases a leather or metallic strap
or band E, or a chain of curb or other form fitted to rest on the hoof at the upper
ends of the ribs, and to which the ribs are rivetted or otherwise attached,
provided to give additional strength and holding power, said strap or band when
of metal being jointed over the shoe joint or joints and carried back on each side
to the heel of the shoe. In shoes for horses employed for heavy work a strap or
band F, of metal, leather or other suitable material may be fitted across the upper
heel part of the hoof under the fetlock and be secured on each side to the rear
clamping ribs C, by screws as shown, or the ends of the strap may be held by studs
or hooks or other contrivances on said ribs and a buckle or other suitable device
used for tightening up and securing it.
The joint a, in the shoe whether on both sides or on one side only must be
formed at such a point that when the jointed part is opened up, the shoe may be
slipped over the hoof from toe to heel while the lower face or sole of the hoof bears
on the upper face of the permanent shoe.
The shoe in its several modifications may be made plain or with moulded or
welded calk pieces or with removable calks or wearing surfaces.
The employment of clamping ribs in conjunction with a jointed shoe as set forth
has the advantage over the use of a flange around the upper face of the shoe and
similar devices which have been used with binding straps for securing the shoe to
the hoof, that a shoe of the requisite size may be adapted to fit any shape of hoof,
as the clamping ribs whether formed on the shoe or made separable therefrom inay
be heated and hammered to the shape desired, and when made of steel they may be
tempered in order to obtain additional strength and elasticity.
The clamping ribs may moreover be made of highly ornate forms instead of being
formed of plain strips as shown.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
(1.) The combination of parts constituting the improved horse shoe under its
several modifications as herein described and with reference to the drawings
annexed.
(2.) The combination of a jointed shoe, having clamping ribs upon its upper fore
and hind parts adapted to embrace the hoof, and means such as a locking bolt
for grasping and bringing together the heel parts to bind the shoe to the hoof,
substantially as herein described and with reference to the drawings annexed.
Dated this twenty-seventh day of February 1886.