The Manufacture of an Improved Liquid for Preventing and Removing Incrustation in Steam Boilers and Treating the Residue Resulting from such Manufacture for the Purpose of Making Blacking and the like.
Year: 1886

page_text: Date of Application, 27th Oct., 1886.
Complete Left, 1st July, 1887.
Complete Accepted, 2nd Aug., 1887.
The Manufacture of an Improved Liquid for Preventing and
Removing Incrustation in Steam Boilers and Treating the
Residue Resulting from such Manufacture for the Purpose of
Making Blacking and the like.
I WILLIAM GOSTWYCK GARD of 5 Icknield Street, Dunstable, in the county of
Bedford, Manufacturer do hereby declare the nature of this invention to be as
follows
This invention mainly consists in the manufacture of an improved liquid for
preventing incrustation in steam boilers such liquid also serving to remove incrustation
from boilers.
In manufacturing my improved liquid I boil waste leather (known as leather scrap)
in a soda solution.
In practice I have found that good results are obtained by taking say one ton of
waste leather and boiling the same in about one thousand gallons of water to which
about one hundred weight to one hundred weight and a half of soda ash or carbonate
of soda is added. The boiling operation is continued until the leather waste becomes
soft and elastic and the process is then complete and the liquid drawn off (a tannate of
soda and gelatinous matter) is suitable for the purposes of my invention.
The charge remaining can then be further treated by adding a sufficient quantity of
water to cover it, to which I then add a greater or less quantity of soda and boil until
the mass is decomposed, when I add sulphate of iron in sufficient quantity to produce
a black product which is suitable to be used in the manufacture of blacking and for
other purposes.
Dated the 27th day of October 1886.
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.

page_text: The Manufacture of an Improved Liquid for Preventing and
Removing Incrustation in Steam Boilers and Treating the
Residue Resulting from such Manufacture for the Purpose
of Making Blacking and the like.
I WILLIAM GOSTWYCK GARD, of 5, Ichnield Street, Dunstable, in the county of
Bedford, Manufacturer, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
and by the following statement :-
in
This invention mainly consists in the manufacture of an improved liquid for
preventing incrustation in steam boilers such liquid also serving to remove incrustation
from boilers.
In manufacturing my improved liquid I boil waste leather (known as leather scrap)
in a soda solution.
In practice I have found that good results are obtained by taking say one ton of
waste leather and boiling the same in about one thousand gallons of water to which
about one hundred weight to one hundred weight and a half of soda ash or a
proportionate quantity of carbonate of soda is added. The boiling operation is
continued until the leather waste becomes soft and elastic and the process is then
complete and the liquid drawn off (a tannate of soda and gelatinous matter) is suitable
for the
of invention.
purposes my
The charge remaining can then be further treated by adding a sufficient quantity of
water to cover it, to which I then add a greater or less quantity of soda ash (say about
30 pounds by weight) or a proportionate quantity of carbonate of soda and boil until
the mass is decomposed to the state of a fine pulp when I add sulphate of iron in
sufficient quantity (say about one hundred weight and a half) to produce a black
product which is suitable to be used as a base in the manufacture of blacking, the
usual ingredients being added for this purpose; or the said product can be used for
other purposes such as for making paint.
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 :
1. The manufacture and use of an improved liquid for preventing and removing
incrustation in steam boilers by treating waste. leather by the process hereinbefore
described.
2. Treating the residue resulting from the above claimed process, for obtaining a
black product suitable to be used in the manufacture of blacking, paint and for other
purposes by the process substantially as hereinbefore described.
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.
Dated the way of T
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.