IMPROVEMENTS IN THE MANU- FACTURE OF CEMENTED LEATHER FOR INSOLES AND OTHER PURPOSES
Year: 1876

page_text: LETTERS PATENT to Thomas Walker and James Walker, both of Bolton, in the
County of Lancaster, for the Invention of "IMPROVEMENTS IN THE MANU-
FACTURE OF CEMENTED LEATHER FOR INSOLES AND OTHER PURPOSES."
Sealed the 30th May 1876, and dated the 25th March 1876.
PROVISIONAL SPECIFICATION left by the said Thomas Walker and James
Walker at the Office of the Commissioners of Patents on the 25th March
1876.
THOMAS WALKER and JAMES WALKER, both of Bolton, in the County of Lancaster.
"IMPROVEMENTS IN THE MANUFACTURE OF CEMENTED LEATHER FOR INSOLES' AND
OTHER PURPOSES."
This Invention has for its object the uniting or cementing of two tanned "split
hide fleshes," thus making one solid waterproof substance suitable for "insoles" and
for other purposes.
These "split hide fleshes" are as large as possible, and are nearly of the full size
of the "butts," and are made by machines employed to split tanned hides, being an
improvement upon the old method of hand shaving. The thickest of these "split
hide fleshes" are curried, and are used for boot and shoe upper purposes, and are of
considerable value.
The thin ones, to which this Invention more especially refers, are increased in
value by two being cemented together in the manner as herein-after mentioned,
forming a solid waterproof substance, and are used for the inner sole in the manu-
facture of boots and shoes, and while they are not of an uniform thickness still they
are rendered more valuable to users than the single "flesh splits" for the purpose
already named; the lighter portions of the "fleshers" being suitable for ladies' work,
and the stronger for men's.
There are other flesh pieces, shavings, roundings, and waste pieces; these are not
intended to be utilized by this Invention.
In manufacturing our improved cemented leather we proceed as follows:-
"
The tanned "split hide fleshers are taken from the splitting machine in a damp
state, and set out with a sleaker, stone, or other tool, after which the cement is
laid upon the surface of each separate "hide flesh " with a brush; two of these are
laid together, glassed over upon a table, and when partially dry are heavily rolled
by steam roller or rollers, and when dry are ready for use.
The cement used in this Invention, in the uniting together of the two hide split
fleshes, comprises the following ingredients in about the following proportions:-
[Price 2d.]

page_text: Animal glue or gelatine, one and a half pounds; oil, half a pint; soaps, half a
pound; barytes, China clay or French chalk, one pound; india-rubber. or gutta
percha one ounce; white, brown, or black pitch, two ounces; and glucose, a quarter
of a pound.
Though we have only named the light "split hide fleshes" as being cemented,
we would remark that in this Invention we reserve the right to use our cement in
the uniting together of two hide flesh pieces of any thickness.
"
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Thomas Walker and James Walker in the Great Seal Patent Office on
the 23rd September 1876.
THOMAS WALKER and JAMES WALKER, both of Bolton, in the County of Lancaster.
IMPROVEMENTS IN THE MANUFACTURE OF CEMENTED LEATHER FOR INSOLES AND
OTHER PURPOSES."
This Invention has for its object the uniting or cementing of two or more tanned
split hide fleshes, thus making one solid waterproof substance.
These split hide fleshes are made by machines employed to split tanned hides,
being an improvement upon the old method of hand shaving.
These split hide fleshes are increased in value by two or more being cemented
together, in the manner as herein-after explained, forming a solid waterproof
substance, which is used for an inner sole and other purposes in the manufacture
of boots and shoes, and while they are not of a uniform thickness still they are
rendered more valuable to users than the single flesh split for the purposes already
named. The lighter portions of these cemented fleshes are suitable for ladies' work,
and the stronger for men's.
There are other flesh pieces, shavings, roundings, and waste pieces; these are
not intended to be utilized in this Invention.
In manufacturing our improved cemented leather, we proceed as follows:-
The tanned split hide fleshes are taken from the splitting machine in a damp
state, and set out with a sleaker, stone, or other tool, after which the cement is
laid upon the surface of each separate hide flesh with a brush, two of these are laid
together glassed over upon a table, and when partially dry are heavily rolled by a
steam roller, and when dry are ready for use.
The cement used in this Invention in the uniting together of the hide split fleshes
may comprise the following ingredients, and in about the following proportions:-
Animal glue or gelatine, one and a half pounds; oil, half a pint; soaps, half a pound;
barytes, China clay, or French chalk, one pound; india-rubber or gutta percha, one
ounce; white, brown, or black pitch, two ounces; glucose, quarter of a pound, and
six quarts of water.
Or, if preferred, the following cement may be used for this purpose:-Glue, one
pound; soap, one pound; india-rubber, one and a half ounces; pitch, one ounce;
water, six quarts.
Having now described the nature and object of our said Invention, together with
the manner in which the same is to be or may be performed or carried into practical
effect, we wish it to be understood that we claim as our Invention the manufacture
of cemented leather (suitable for insoles and other purposes) from split hide fleshes,
substantially as herein-before explained.
In witness whereof, I, the said Thomas Walker (on behalf of myself and the
said James Walker), have hereunto set my hand and scal, this Nineteenth
day of September, in the year of our Lord One thousand eight hundred
and seventy-six.
THOMAS WALKER. (L.S.)