PROVIDIUNAL DIBUITICATION Improvements in Horse-shoes.
Year: 1888

page_text: Date of Application, 23rd Oct., 1888
Complete Specification Left, 16th July, 1889-Accepted, 7th Sept., 1889
PROVIDIUNAL DIBUITICATION
Improvements in Horse-shoes.
We ROBERT WILLIS BRYDON, of 7 South Crescent, Hartlepool, Accountant, and
THOMAS PYBOURNE, the Younger, of Angate Street, Wolsingham, Blacksmith, both in
the County of Durham, do hereby declare the nature of our invention to be as
follows:-
This Invention has reference to improvements in horse-shoes, and comprises a new
or improved mode and means of forming or constructing and portably attaching or
securing flat, roughened or sharpened heel and toe projecting bearing pieces or
" calks to the shoes for winter use, for being easily removed for the insertion of new
ones when the old ones get worn, either with or without removing the shoes from the
horses' feet.
According to this invention, the horse-shoes are made of an ordinary shape, of cast
steel, wrought-iron, or other metal, with the usual grooves and holes formed on the
upper outer surface for the securing nails to pass through when shoeing the horses.
According to these improvements, narrow shallow sunk grooves would be formed with
dovetail recessed ends at the heel and toe parts, for the insertion and securing of
portable or removable "calks." These flat roughened or sharpened bearing pieces or
calks would be formed on flange or sole pieces the same size and depth as the recess
in the shoe; and both ends of these sole pieces would be formed of an angled or dove-
tail shape to fit into the dovetail ends of the grooves in the horse-shoe. These flanged
or securing pieces would be curved or bent up before being inserted and laid into the
grooves in the shoe; and when straightened down by a hammer to their horizontal
position within the groove, they would completely fill the groove and cause the dove-
tail ends to secure the whole irremovable except by re-bending the flanged or sole
part so securing them in the groove. A narrow angled recess would be formed at
one side of the groove in the shoe for getting in the end of a chisel to remove the
calks when worn out. The calks may be formed or punched out of mild steel, or
made or cast of malleable cast iron, in which case the projecting bearing or calked
parts might be tempered or case-hardened, while leaving the flanged bending securing
parts quite malleable for either being beat down or secured cold or hot into their end
dovetail securing grooves as stated; or otherwise, these bearing parts might be made
with the projections or calks of steel welded to malleable iron flanges below, so that
the bearing parts and calks may be tempered, while leaving the lower thin securing
parts malleable for being forced into their securing grooves. The projections on the
heel pieces would he formed at the rear end of the securing flanged part, left long
enough for being bent and secured in their grooves in front; but the toe-pieces would
have the narrow bending securing flange formed in the centre by punching a slot in
it, and cutting the bearing part in two by a saw or otherwise, so as to have the solid
calks at each side forming a straight rib across the toe when beat down into its
groove; in both cases a bearing shoulder would preferably be formed over the
dovetailed solid ends of the bearing parts or calks.
Dated this 22nd day of October 1888.

page_text: COMPLETE SPECIFICATION. ·
Improvements in Horse-shoes.
We, ROBERT WILLIS BRYDON, of 7 South Crescent, Hartlepool, Accountant, and
THOMAS PYBOURNE, the Younger of Angate Street, Wolsingham, Blacksmith, both in the
county of Durham, 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 in writing, reference being had to the accompanying
sheet of Drawings and to the letters and figures marked thereon, that is to say :-
This Invention has reference to improvements in horse-shoes, and comprises a new
or improved mode and means of forming or constructing and portably attaching or
securing to said shoes the flat projecting bearing heel and toe pieces and the roughened
or sharpened "calks" suitable for frosty weather, for being easily removed for the
insertion of new ones when the old ones get worm, without removing the shoes
from the horses' feet or by removing these for inserting the new
"calks."
And in order that our said invention and the manner of performing or carrying
the same into effect or practice may be properly understood, we have hereunto
appended an explanatory sheet of Drawings, in which the same reference letters
are used to indicate corresponding parts in all the figures where shown. Figure 1
is a plan view of the under surface of a horse-shoe A A', as formed according to
our improvements with narrow sunk grooves a, a, having under cut or dovetailed
ends a³, at the heel and toe parts A, A, respectively, for the insertion and securing
of portable or removable "calks "bb², and b², which are not shown fitted therein,
in this Figure. Figure 2 is a transverse elevation partly in section, as taken on the
line 11 of Figure 1. Figure 3 is an edge and transverse sectional elevation as
taken on the lines 22 and 3 - 3 respectively of Figure 1. While Figures 4,
5, and 6, are views corresponding to Figures 1, 2, and 3 respectively, but having
the toe and heel portable calks and 662, which are here shown with flat bearing
and gripping surfaces b, b', as secured in the recessed grooves a, a', in the shoe A A
Figure 7 is a plan view corresponding to Figure 1, of a horse hind shoe as formed
with recessed heel and toe grooves a, a¹, for the insertion of portable or removable
"calks," but showing the shoe of a different shape or configuration from that shown
in Figures 1 to 6. Figures 8 and 9 show each edge and side views of flat and sharp
forms respectively of calks", b, as formed ready for insertion into the recessed
heel parts a A, of the shoes according to our improvements. Figures 10 and 11
show each front and edge elevations and a plan of flat and sharp forms respectively of
"calks", b, as formed for insertion into the recessed toe parts a' A' of the 'shoes
according to our improvements. Figure 12 shows an elevation of a small bearing
"drift" tool as suitable for use in inserting the gripping parts of the "calks" b*,
into the toe and heel recessed parts a', a, of the shoe; and Figure 13 is an elevation
of a tool as suitable for removing the "calks" 6 6², and 62 62, from the recessed toe
and heel parts of the shoes.
or
b
Referring to these Drawings, according to this invention, the horse shoes A, A¹,
are made of an ordinary parallel thickness shape, of cast-steel, wrought-iron, or other
metal, with the usual grooves and holes z' formed round the front side quarters on
the outer or under surface, for the securing nails to pass through when shoeing the
horses. According to these improvements, new narrow parallel sunk grooves a, a,
are formed preferably more than half the thickness of the shoe, with dovetail recessed
ends a, a, at the heel and toe parts A, A', respectively for the insertion and securing
of portable or removable bearing pieces or "calks" b, b, respectively. These flat,
roughened or sharpened bearing pieces or "calks" b bare formed with or on securing
flange or sole pieces 62 the same size and depth as the recesses a, a¹, in the shoe ; and
both ends of these sole pieces 2 of the calks 6, 6, are formed of an angled or dovetail
shape to fit into the dovetail ends a² of the grooves a, a¹, when properly inserted in
the horse shoe as hereinafter described. These flanges or securing pieces 6* of the
calks b, b¹, are curved or bent up before being inserted and laid into the grooves a, a¹,

page_text: in the shoe as shown in the detail views Figures 8 to 11; and when inserted and
straightened down by a hammer or drift tool Z, such as shown in Figure 12 held in
the left hand and struck by a hammer at Z held in the right hand over the centre or
grooved part 6 and straightened to their horizontal position within the grooves a, a¹,
they completely fill these grooves and cause the dovetail ends a³ to secure the whole
irremovably, except by rebending the flanged or sole part 62 so securing them in the
grooves a a³, a¹ a², all as seen in this flattened and secured position in Figures 4 to 6
A narrow recess all is formed laterally through the outside of the shoe, at one side
and at the centre of the grooves a a¹ in the heel and toe parts at A A' for getting in
the angled end Z" of a chisel or tool, such as that shown in Figure 13 into the recess
at 6 left for it in the centre of the part 62 to remove the "calks" b, b, when worn out
the hammer being made to strike on the other end Z. The calks b, b', may be cast,
formed or punched out of mild steel, or made or cast of malleable cast iron, in which
case the projecting bearing or calked parts b, b, might be tempered or case hardened,
while leaving the flanged bending securing parts quite malleable for either being
beat down or secured cold or hot into their end dovetail securing grooves a a², a¹ a²,
or otherwise, these securing parts 63, might be made with the projections
or calks b, b, of steel welded to these malleable iron flanges 6* below, so that the
bearing parts and calks b, b', may be tempered, while leaving the lower thin
securing parts 63 malleable for being forced into their securing grooves a a², a¹ a².
The bearing projections 6 of the heel pieces are formed at the rear end of the
securing flanged part 2 and left long enough for being bent at their centre part 611
and secured in their grooves a a², in the shoe in front; but the toe-pieces 61 have
the narrow bending securing flange & formed in the centre by punching a slot 6111
over it, and cutting the bearing part b in two above this by a saw or otherwise,
so as to have the solid outer bearing parts 61, 61, of the "calks" at each side
forming a straight line across the toc when heaten down into its groove a¹ a²; in
both cases a bearing shoulder 63, would preferably be formed over the dovetailed
solid end or ends of the bearing parts or calks 6 6, and of the shoe at a³.
as stated
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
First. The herein described mode and means of forming or constructing and portably
attaching or securing flat, roughened, or sharpened heel and toe projecting bearing
pieces or calks in horse shoes, substantially as and shown in the accompanying
Drawings.
Second. The construction of horse shoes with narrow sunk grooves having recessed
or dovetail ends formed at the heel and toe parts for the insertion and securing of
portable or removable calks, substantially as and in the manner herein described, in
reference to and shown in the accompanying Drawings.
Third. The construction of portable bearing parts or calks with flanged or bent inner
parts for being secured in dovetail recesses or grooves in the heel and toe parts of
horse-shoes, substantially as and in the manner herein described, in reference to and
shown in the accompanying Drawings.
10 fl 1000
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.