AN IMPROVED CLOG FOR ROUGHING HORSES
Year: 1870

page_text: LETTERS PATENT to William Nicholson, of No. 143, Holborn Hill,
in the City of London, Engineer, and Daniel Hopkin, of No. 4,
Phoenix Place, in the County of Middlesex, Farrier, for the Invention
+
T
PROVISIONAL SPECIFICATION left by the said William Nicholson
and Daniel Hopkin at the Office of the Commissioners of Patents,
with their Petition, on the 12th March 1870.
We, WILLIAM NICHOLSON, of No. 143, Holborn Hill, in the City of
London, Engineer, and DANIEL HOPKIN, of No. 4, Phoenix Place, in
the County of Middlesex, Farrier, do hereby declare the nature of the
said Invention for "AN IMPROVED CLOG FOR ROUGHING HORSES," to be as
follows, that is to say :-
This Invention consists in the construction of an improved clog to
be applied to horses' shoes when required for the purpose of roughing
them. This improved clog is constructed of two pieces of sheet steel cut
on their outer edge to the contour of the horse shoe, the two pieces
forming when together an ellipse; on the inner side of each of these

page_text: half elliptical pieces is cut a slot, inclining inwards towards the front of
the shoe, and at the front and back of each piece a place is formed by
stamping for receiving a peg or spike; these four pegs or spikes, which
are for obtaining a hold for the horse's feet on icy or slippery ground,
have their shanks at right angles and slotted for the purpose of fixing
them securely; a projection is left at the front and back of each semi-
elliptical piece which is turned up and inclined inwards, thus forming
four clips; the two front clips are the longest and serve to clip the
front of the horse's hoof and the other two serve to clip the sides of the
shoe at the back. The two parts of the clog are jointed together at the
front so that they may be moved towards or from each other. The two
parts are also connected together at the back by a small cross bar with
a pin at each end working in the herein-before described inclined slots;
this cross bar has a tapped hole in the centre for receiving a screw by
which the clog is securely tightened on to the shoe, the cross bar also
having at each end a small catch for taking on to the inside face of the
shoe for greater security.
As the pegs or spikes wear out they are removed and replaced by
SPECIFICATION in pursuance of the conditions of the Letters Patent 2
filed by the said William Nicholson and Daniel Hopkin in the
Great Seal Patent Office on the 12th September 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
NICHOLSON, of No. 143, Holborn Hill, in the City of London, Engineer,
and DANIEL HOPKIN, of No. 4, Phoenix Place, in the County of 2
Middlesex, Farrier, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of March, in the year of
our Lord One thousand eight hundred and seventy, in the thirty-third
year of Her reign did, for Herself, Her heirs and successors, give and a
grant unto us, the said William Nicholson and Daniel Hopkin, Her special
licence that we, the said William Nicholson and Daniel Hopkin, our
executors, administrators, and assigns; or such others as we, the said
William Nicholson and Daniel Hopkin, our executors, administrators, and
assigns, should at any time agree with, and no others, from time to time 3
and at all times thereafter during the term therein expressed, should

page_text: and lawfully might make, use, excrcise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle of
Man, an Invention for "AN IMPROVED CLOG FOR ROUGHING HORSES," upou
the condition (amongst others) that we, the said William Nicholson and
Daniel Hopkin, our executors or administrators, by an instrument
in writing under our, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that wo, the said William Nicholson and Daniel
Hopkin, do hereby declare the nature of our said Invention, and in
what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement, reference being had
to the Drawing hereto annexed, and to the figures and letters marked
thereon, that is to say :-
This Invention consists in the construction of an improved clog to be
applied to horses' shoes when required for the purpose of roughing
them. This improved clog is constructed of two pieces of sheet steel
cut on their outer edge to the contour of the horse shoe, the two pieces
forming when together an ellipse. On the inner side of cach of these
half-elliptical pieces is cut a slot inclining inwards towards the front of
the shoe; and at the front and back of each piece a place is formed by
stamping for receiving a peg or spike; these four pegs or spikes which
are for obtaining a hold for the horses' feet on icy or slippery ground
have their shanks at right angles, and slotted for the purpose of fixing
them securely. A projection is left at the front and back of each semi-
elliptical piece which is turned up and inclined inwards, thus forming
four clips. The two front clips are the longest, and serve to clip the
front of the horse's hoof, and the other two serve to clip the sides of the
shoe at the back. The two parts of the clog are jointed together at the
front, so that they may be moved towards or from each other. The
two parts are also connected together at the back by a small cross bar
with a pin at each end working in the herein-before described inclined
slots. This cross bar has a tapped hole in the centre for receiving a
screw by which the clog is securely tightened on to the shoe, the cross
bar also having at each end a small catch for taking on to the inside

page_text: face of the shoe for greater security. As the pegs or spikes wear out
they are removed and replaced by others.
To make our Invention better understood we will now proceed to
describe the same by reference to the accompanying Drawing, in which
Figure 1 is a side elevation of our improved clog for roughing horses;
Figure 2, plan of under side of same; and Figure 3, plan of upper
side. Similar letters are used in all the Figures to represent similar
parts.
a, a, are two pieces of sheet steel cut on their outer edge to the
contour of the horse shoe, and forming together an ellipse; b, b, are
slots inclined inwards towards the front of the shoe; c, c, c, c, are four
sockets or places formed by stamping; in each of these sockets is
placed a peg or spike d, the point of which is at right angles to the
shank, which is slotted to allow when passed through the socket of its
being opened out to securely fix the spike. When worn or broken it
may be easily removed and replaced by another. These four pegs or
spikes enable the horse to obtain a firm footing on icy or slippery ground,
Each of the pieces a, a, is formed with a projection at front and back,
which projections are turned up and inclined inwards so as to form
clips; e, e, are the front clips, and f, f, the back clips; the front clips
are the longest, and are intended for clipping the front of the horse's
hoof; the other two clips f,f, serve to clip the sides of the shoe at the
back. The two parts of the clog are jointed together to permit of their
being moved towards or from each other by means of the pin or rivet g
and piece h, and are also connected by the link or bar i, having a pin j
at each end working in the slots b, b; the bar i has a tapped hole in its
centre for receiving the screw k with lock nut k', the front end of which
screw abuts against the end of the piece h, turned up at right angles for
that purpose. 1, 1, are catches fixed on the pins j of the cross bar i;
the lower ends m of the pins j are made square and of the same size as
the square end n of the screw k, so that one key will fit them all. In
someca ses the catches are not required.
To apply the clog thus constructed to a horse's foot it must be placed
under the shoe, so that the clips e, e, shall grip the front of the hoof;
then by turning the screw k by means of a key the cross bar i will be
moved towards the back part of the clog, and as the parts a, a, move at the
joint g they will be drawn nearer together until the back clips f,f, firmly
clip the sides of the horse shoc; the catches 1, 1, are then turned so as

page_text: to take on to the inside face of the shoe, and the clog will be firmly
fixed. To remove the clog the screw and catches 1, 1, must be turned in
the opposite direction, and the clips f, f, will be moved outwards from
the shoe when the clog may be removed.
Instead of the front clips e, e, which are formed as herein-before
described out of one piece with the parts a, a, we sometimes employ one
clip only, similar to that shewn in side elevation at Figure 4, and in
plan at Figure 5; this clip is formed by making the piece h longer, and
turning it up at the front. By employing this separate clip so largo
a sheet of steel is not required to form the parts a, a, of the clog.
Having now described our said Invention, and the manner of per-
forming the same, we wish it to be understood that we do not confine
ourselves to the precise details herein laid down and shewn in the
Drawing; but what we claim is, the improved clog for roughing horses
constructed substantially as herein before described and represented in
the accompanying Drawing,
-
In witness whereof, we, the said William Nicholson and Daniel
Hopkin, have hereto set our hands and scals, this Twelfth day of
September, in the year of our Lord One thousand eight hundred
and seventy,
Witness,
W. A. GILBEe,
Patent Agent,
4, South St.,
Finsbury,
WM. NICHOLSON. (L.S.)
DANIEL HOPKIN, (L.S.)