A Novel and Quick Process in Preparing Skins and Hides, and Making them into Buff or Oil Leather in less than 24 Hours.
Year: 1895

page_text: Date of Application, 10th Sept., 1895
Complete Specification Left, 10th June, 1896-Accepted, 10th Nov., 1896
PROVISIONAL SPECIFICATION.
A Novel and Quick Process in Preparing Skins and Hides, and
Making them into Buff or Oil Leather in less than 24 Hours.
We HENRY RICHES Cooper North Street Farncombe Godalming Surrey, and
WALTER GEORGE RICHES Grounder Meadrow Farncombe Godalming do hereby
declare the nature of this invention to be as follows:-
1st. Bate or drench skins after they have been prepared in usual way in a
bath composed of following minerals 1% solution of sulphide of ammonia, or
byposulphate of sodium for 1 or more hours according to thickness of skins or
hides, then press or dry in usual way.
2nd. Mill with fallers or pushers with following oils or grease, cod, sod, or neat's
foot oils, or with various white fats thereby obtaining an ordinary yellow chamois
or a perfectly white leather that shall require no bleaching.
Time taken from 1st process to finishing including washing not more than 24
(twenty-four) hours either washed in usual way or with carbonate of ammonia.
Dated this 9th day of September 1895.
HENRY RICHES.
WALTER RICHES.
A Novel and Quick Process in Preparing Skins and Hides, and
Making them into Buff or Oil Leather in less than 24 Hours.
We, HENRY RICHES formerly of North Street, Farncombe, Godalming in the
County of Surrey but now of 189, Grange Road, Bermondsey, London S.E.
Cooper, and WALTER GEORGE RICHES of Meadrow, Farncombe, Godalming in
the County of Surrey, Grounder, 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 relates to an improved process for the preparation and dressing of
skins whereby the duration of treatment is materially reduced and the finished
leather rendered supple and pliable.
In carrying our invention into effect we take the skins that have been previously
steeped in lime pits, or have been otherwise suitably treated to effect depilation
and fleshing, and we effect the bating or drenching thereof in a bath containing a
solution of sulphide of ammonium or hyposulphite of sodium, the solution being of
about one per cent. of either of such imineral compounds. We allow the skins
deposited in the bath to remain therein for the period of one or more hours
according to the thickness of skins and the strength of solution. The skins are,
by the action of the solution, deprived of the lime and "plumped" rendered hard
and in a suitable condition for further treatment. They are then pressed or dried
in the usual way.
We thereupon mill the skins with "fallers or "pushers" using
cod, "sod," or neat's foot oil or white fats or greases, and afterwards wash in the
usual way or with carbonate of ammonium.
"

page_text: By the treatment of skins in this way we are enabled to produce an ordinary
yellow chamois or a perfectly white leather that shall require no bleaching, while
the appearance, texture, and pliability of the finished leather render such equal to
that produced by the usual processes of long duration by which the best leathers
are dressed.
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;―
(1.) In a process for dressing skins the bating or drenching thereof in a bath
composed of a solution of sulphide of ammonium or hyposulphite of sodium
substantially as described.
(2.) In a process for dressing skins the bating or drenching thereof in a bath
composed of a solution of sulphide of ammonium or hyposulphite of sodium and
the subsequent milling with suitable oils or fats substantially as described.
Dated this Tenth day of June 1896.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.