An Improved Method of Making Frost Cogs in Order to Rough Horse Shoes.
Year: 1888

page_text: Date of Application, 4th July, 1855
Complete Specification Left, 15th Sept., 1888
Complete Specification Accepted, 19th Oct., 1888
PROVISIONAL SPECIFICATION.
An Improved Method of Making Frost Cogs in Order to Rough
Horse Shoes.
I, HENRY WOOLDRIDGE of Bromley Road, Lye, Stourbridge in the county of
Worcester, Horse-nail and Horse-shoe manufacturer do hereby declare the nature of
this invention to be as follows:-
It consists of self fitting removable cogs or spikes with shanks
square, or in diameter, or other sizes as may be required.
for in.
The shanks may be square round or triangular in shape and are slightly tapered,-
they are ganged to fit into corresponding holes which are punched through the whole
thickness of the shoe.-The boles may be made in the heels or the toes and heels, and
are not tapered, being of the same diameter all through, they are gauged to receive
the cogs or spikes of Steel or Iron slightly tapered-which are securely fastened by a
light blow or two.
In the side of the cog a niche depression or slot is made-the end of which
towards the point of the cog being at a right angle or an acute angle to the side of
the shank of the cog.
The worn cogs are easily extracted by inserting a lever into the depression in the
side of the cog and prizing or lifting the cog out of the shoe, the end of the lever
catching the angular end of the depression or niche and the shoe itself forming the
fulcrum.
Worn cogs may thus be easily removed from shoes and sharp ones substituted in
time of frost.

page_text: COMPLETE SPECIFICATION.
An Improved Method of Making Frost Cogs in Order to Rough
Horse Shoes.
I, HENRY WOOLDRIDGE of Bromley Road, Lye, Stourbridge in the county of
Worcester, Horse nail and Horse shoe Manufacturer, do hereby declare the nature of
my invention for AN IMPROVED METHOD OF MAKING FROST COGS IN ORDER TO ROUGH
HORSE SHOES and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
It consists of self-fitting removable cogs or spikes with shanks in., in., ĝin.,
7 in., or in. square, or in diameter, or other sizes as may be required.
The shanks may be square, round, or triangular in shape and are slightly tapered,―
they are gauged to fit into corresponding holes which are punched through the whole
thickness of the shoe.
The holes may be made in the heels, or in the toes and heels, and are not tapered,
being of the same diameter all through, they are gauged to receive the cogs or
spikes of steel or iron slightly tapered, which are securely fastened by a light blow
or two.
In the side of the cog, a niche, depression, or slot A is made, the end of which B,
towards the point of the cog being at a right angle or an acute angle to the side of
the shank of the cog.
The cogs are easily extracted by inserting a lever into the depression in the side
of the cog, and prizing or lifting the cog out of the shoe, the end of the lever
catching the angular end of the depression or niche, and the shoe itself forming the
fulcrum.
The niche or depression may vary in depth as required by size of cog or other
circumstances and may even entirely perforate the cog so as to allow the lever to act
on either side.
Worn cogs may thus be easily removed from shoes in time of frost, and sharp
ones substituted.
Having now particularly described and ascertained the nature of my said Inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The novelty of the niche, depression, or slot, into which the lever is inserted for the
purpose of extraction.
Dated this 14th day of September 1888.