Improvements in Roughing Screws for Shoes for Horses and other Animals and in Apparatus for Fitting and Unfitting the same.
Year: 1889

page_text: Date of Application, 14th Dec., 1889-Accepted, 18th Jan., 1890
COMPLETE SPECIFICATION.
Improvements in Roughing Screws for Shoes for Horses and other
Animals and in Apparatus for Fitting and Unfitting the same.
We EDWARD ROCHESTER of 20 Stainsby Road Poplar and EMILE DEJEAN of
82 Jubilee Street Mile End Master Farriers 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 :-
Our invention has for its object: Firstly To enable a horse or other animal to
obtain a sure foothold thus preventing accident and obviating strain and injury both
to the animal and vehicle-Secondly. To provide a ready means for fitting borse shoes
and other similar shoes with our improved roughing screw.
Such improved roughing screw consists of a metal stud or peg having a conical or
taper head furnished with a conveniently shaped collar terminating in a threaded
hollow shank. This shank takes into a taper hole which is made in the shoe and
tapped to allow such shank to be screwed therein. Ordinarily we fit the shoe with
two of our improved roughing screws placed one in each end of the heel but if desired
one or more such screws may be fitted to the toe and sides of the shoe so as to give
the hoof a firmer grip on the road. This will be found advantageous in the case of
very rugged or slippery roads.
The object of forming the collar round the head of the roughing screw is to
allow the same to be readily fitted to the shoe by means of our improved apparatus
next hereinafter described. Such apparatus consists of a flat bar of iron or steel
(hereafter termed the "cross bar") having its edges rounded and terminating at one
end in a point which forms a pick wherewith to extract stone grit or dirt from the
shoe or hoof, while its opposite end is made somewhat thicker and heavier and forms a
convenient hammer head which will be found very useful in fitting or unfitting our
improved roughing screw. Such hammer head has an eye made therein which
corresponds in shape with and fits over the collar formed round the head of the
roughing screw so that when fitted thereon the cross bar can be used as a lever either
In the centre of such cross bar is a
to tighten up or start the roughing screw.
perforated boss forming a socket wherein either a reamer or a bit is fitted as required.
The reamer and bit are each made of a short length of iron or steel terminating at
the top in a nut that fits into the perforated boss and so converts the bar into a cross
head whereby to operate either the reamer or bit. The lower end of the reamer
terminates in a threaded cone that fits into each of the taper threaded holes formed in
the shoe as already described so that when the screw thread in either of such holes
becomes worn it can be readily sharpened by inserting the reamer therein and working
it to and fro by means of the cross bar. The lower end of the bit terminates in a toe
which fits into the hollow shank of the roughing screw so that when the latter has
become fast in the shoe either through corrosion or otherwise by inserting such toe
therein and turning the bit with the cross head, the shank can be readily started and
taken out-The cross bar reamer and bit together form a simple portable and effective
combination tool which will be found extremely useful for fitting and unfitting our
improved roughing screw to horse shoes and other similar shoes.

page_text: a plan of the cross bar d and Figs. 8 and 9 elevations of the reamer and bit
herein before described-d¹ is the point or pick of the cross bar-e the hammer head
formed thereon with eye e and the perforated central boss thereof-g is the reamer
with, nut g at one end and threaded cone 9 at the other end. is a bit with nut h¹
and toe 2. Fig. 10 is a view partly in section and partly in elevation shewing the
reamer fitted, in the cross bar and applied to one of the taper threaded holes i in the
shoe for the purpose of sharpening the thread therein as previously described.
Fig. 11 is a similar view shewing the bit fitted to the cross bar and having the toe
thereof applied to the shank of the roughing screw for starting the same in the manner
hereinbefore described. Fig. 12 is a plan of a horse shoe shewing the taper threaded
holes formed therein for receiving the roughing screws-Fig. 13 is a back-and
Fig. 14 a side elevation of the shoe shewing the roughing screws fitted thereto.
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
1. In combination with a horse shoe or other similar shoe one two or more
roughing screws each consisting of a taper stud or conical peg furnished with a
hexagonal or other suitably shaped collar and having a threaded hollow shank all
respectively as hereinbefore described and shewn.
2. Forming one two or more taper threaded holes in a horse shoe or other similar
shoe to receive the threaded shank or threaded shanks of such roughing screw or
roughing screws as herein before described and shewn.
3. In combination with such improved roughing screw the apparatus for fitting
and unfitting the same consisting of a cross bar reamer and bit all respectively
made combined and fitted as hereinbefore described and shewn.
4. Fitting a horse shoe or other similar shoe with one two or more roughing
screws each respectively made and fitted as herein before described and shewn.
Th
en
1000
ELT & Co.
33, Southampton Buildings, Holborn, London, Agents for the Applicants.