Year: 1888

page_text: Date of Application, 24th Jan., 1888
Complete Specification Left, 24th Jan., 1888
Complete Specification Accepted, 10th Aug., 1888
JACOB BIRRELL joiner 37 Acres Road Chorlton cum Hardy Manchester ALFRED
BLACKBURN Painter 8 Milton Terrace Barton Road Stretford do hereby declare the
nature of this invention to be as follows :-
Is two peices of Steel forming a clasp to be fixed to the ordinary horses shoe by a
wedge key, connecting the two parts of the clasp. The improved roughing can be
fixed without removing the shoe. One part of the clasp carries a roughing wedge.

page_text: COMPLETE SPECIFICATION.
An Improved Roughing Attachment for Horse Shoes.
We JACOB BIRRELL Joiner 37 Acres Road Chorlton cum Hardy near Manchester
and ALFRED BLACKBURN Painter 8 Milton Terrace Barton Road Stretford near
Manchester 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 consists of a Clasp formed of two pieces carrying suitable hooks to
fit on to or to grip the horse Shoe, the sole plates of the said pieces fitting into one
another in such a manner as to allow of a longitudinal sliding action, and being drawn
together by a suitable cottar or wedge. One of the pieces carries one or more
sharpened edges projecting downwards from the sole plate.
In order that our invention may be better understood we refer to the accompanying
drawings.
Fig. 1. is a side elevation.
Fig. 1I. a front elevation.
Fig. III a plan, and Fig. IV a cross section of one form of our invention.
Fig. V is a front elevation and
Fig. VI a cross section of a modification thereof.
In all the views the same letters of reference refer to the samo parts. A is one of the
pieces carrying a broad hook in front extending the full width of the attachment and
forming a sort of toe piece for the shoe which is shewn dotted in Figs. I and III. Its
sole plate is formed by the two horns a¹ a¹. B is the other piece carrying a hook b,
having a sole plate below which is formed the sharpened edge or edges 6", c is
an ordinary cottar so formed and fitted as to draw together the two pieces A and B
when it is driven in. A sufficient clearance space is left between the sole plate b¹
and the inside of piece A.
It will be seen that upon being applied to the toe of a horse Shoe as shewn in
Fig. I and the cottar c being driven in, the attachment or clasp will grip the Shoe
firmly.
Instead of one or more sharpened cross edges extending the full width as shewn
in Figs. I and II we sometimes make the edge or edges 61 of the same width only
as the sole plate 61 and in this case we can form short longitudinal edges projecting
downwards from the horns a¹ a¹ of the piece A. This modification is shewn in Figs. V
and VI where d d are the longitudinal edges referred to.
We propose to make the whole in steel and if requisite to harden the sharp edges.

page_text: The main advantages of our invention are its ready applicability in case of sudden
requirement and the longer life of the Shoes.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed we declare that what
we claim is :-
I. The attachment or Clasp for Horse Shoes formed in two pieces with hooks,
sole plates and sharpened edges the two pieces being drawn together by a cottar
substantially as herein before described and illustrated in the accompanying drawings
Dated this 27th day of Inly 1000
JACOB BIRRELL.
ALFRED BLACKBURN.