An Improvement in Tanning.
Year: 1886

page_text: Date of Application, 9th June, 1886
Complete Left, 8th Mar., 1887.
Complete Accepted, 7th Apr., 1887
PROVISIONAL SPECIFICATION.
An Improvement in Tanning.
I, EDWARD PLANTA NESBIT, of No. 26 Priory Road, Wandsworth Road in the
County of Surrey, Gentleman, do hereby declare the nature of this invention to be as
follows:-
In tanning processes as they are usually carried on, the preliminary operation of
removing the hair from the hides or skins is effected by treating them with lime.
The presence of lime interferes seriously with the action of the tanning materials
afterwards applied, and involves great delay and expense.
The object of my invention is to effect comparatively rapid removal of the lime and
thus render the hides or skins at once susceptible of the tanning action. For this
purpose, I place a number of the limed hides or skins, after removal of the hair, in a
vessel that can be tightly closed, along with water, and into this I force carbonic acid
gas while the hides and skins are kept agitated. The excess of carbonic acid dissolves
the lime which is thus eliminated, so that the hides or skins after removal from the
vessel can be rapidly tanned. The process may be carried on in open vessels but not
so effectively or economically as much of the carbonic acid escapes."
1000
ABEL & IMRAY,
28, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: 1 EDWARD PLANTA NESBIT of No. 26 Priory Road, Wandsworth Road, in the
County of Surrey, Gentleman 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 :-
In tanning processes as they are usually carried on, the preliminary operation of
removing the hair from the hides or skins is effected by treating them with lime. The
presence of the line interferes seriously with the action of the tanning materials
afterwards applied, and involves great delay and expense. The object of my inven-
tion is to effect a comparatively rapid and economical removal of the lime and thus to
render the hides or skins at once susceptible of the tanning action. For this purpose,
I place a number of the limed hides or skins after removal of the hair in a vessel that
can be tightly closed, along with water and into this I force carbonic acid gas while
the hides and skins are kept more or less agitated. The excess of carbonic acid
dissolves the lime which is thus eliminated, so that the hides or skins after removal
from the vessel can be washed and rapidly tanned. The process may be carried on in
open vessels but not so effectually or economically, as in closed vessels because much
of the carbonic acid gas may escape without acting on the lime. By treating hides or
skins for removal of the line in the manner described a quantity of the grease or fat
and other impurities are also separated from them. The hides or skins thus cleared
from the lime and other matters are in condition suited not only for tanning but also
for other treatment such as glue making, to which scraps of them are frequently
applied.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is :-
The herein described method of removing lime from hides and skins by subjecting
them while agitated in water to the action of carbonic acid gas.
Datad this 8th day of March 1887
ABEL & IMRAY,
Agents for the Applicant.

page_text: Date of Application, 9th June, 1886
Complete Left, 8th Mar., 1887.
Complete Accepted, 7th Apr., 1887
An Improvement in Tanning.
I, EDWARD PLANTA NESBIT, of No. 26 Priory Road, Wandsworth Road in the
County of Surrey, Gentleman, do hereby declare the nature of this invention to be as
follows:-
In tanning processes as they are usually carried on, the preliminary operation of
removing the hair from the hides or skins is effected by treating them with lime.
The presence of lime interferes seriously with the action of the tanning materials
afterwards applied, and involves great delay and expense.
The object of my invention is to effect comparatively rapid removal of the lime and
thus render the hides or skins at once susceptible of the tanning action. For this
purpose, I place a number of the limed hides or skins, after removal of the hair, in a
vessel that can be tightly closed, along with water, and into this I force carbonic acid
gas while the hides and skins are kept agitated. The excess of carbonic acid dissolves
the lime which is thus climinated, so that the hides or skins after removal from the
vessel can be rapidly tanned. The process may be carried on in open vessels but not
so effectively or economically as much of the carbonic acid escapes.
Dated this 9th day of June 1886.
ABEL & IMRAY,
28, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: I EDWARD PLANTA NESBIT of No. 26 Priory Road, Wandsworth Road, in the
County of Surrey, Gentleman 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 :-
In tanning processes as they are usually carried on, the preliminary operation of
removing the hair from the hides or skins is effected by treating them with lime. The
presence of the lime interferes seriously with the action of the tanning materials
afterwards applied, and involves great delay and expense. The object of my inven-
tion is to effect a comparatively rapid and economical removal of the lime and thus to
render the hides or skins at once susceptible of the tanning action. For this purpose,
I place a number of the limed hides or skins after removal of the hair in a vessel that
can be tightly closed, along with water and into this I force carbonic acid gas while
the hides and skins are kept more or less agitated. The excess of carbonic acid
dissolves the lime which is thus eliminated, so that the hides or skins after removal
from the vessel can be washed and rapidly tanned. The process may be carried on in
open vessels but not so effectually or economically, as in closed vessels because much
of the carbonic acid gas may escape without acting on the lime. By treating hides or
skins for removal of the lime in the manner described a quantity of the grease or fat
and other impurities are also separated from them. The hides or skins thus cleared
from the lime and other matters are in condition suited not only for tanning but also
for other treatment such as glue making, to which scraps of them are frequently
applied.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is :-
The herein described method of removing lime from hides and skins by subjecting
them while agitated in water to the action of carbonic acid gas.
ABEL & IMRAY,
Agents for the Applicant.