Improvements in the Manufacture and Production of Dry Soap or Soap Powder.
Year: 1896

page_text: Date of Application, 7th Dec., 1896
Complete Specification Left 7th Sent 1807 Accented 23rd Oct 1007
Date of Application, 7th Dec., 1896
Complete Specification Left, 7th Sept, 1807 Accepted, 23rd Oct., 1807
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture and Production of Dry Soap or
Soap Powder.
We FREDERICK WILLIAM WRIGHT Chemist and THE UNITED ALKALI
COMPANY LIMITED both of G Exchange Buildings Liverpool in the County of
Lancaster do hereby declare the nature of this Invention to be as follows:-
When the precipitate of crude bicarbonate of soda, as obtained by the ammonia
soda process is heated to recover therefrom the ammonia, a material is obtained
technically known as "Roaster ash" which has approximately the composition
of sesqui-carbonate of soda.
According to this Invention by grinding together this "Roaster ash," soap,
and water, an excellent "dry soap" is produced having no causticity, giving a
good lather, and capable of being easily reduced to a very fine powder by ordinary
grinding and "dressing." The grinding can be done in a mortar mill or other
suitable mill.
By this means "dry soap" or soap powder is produced in a very economical
manner without the necessity for using any of the more expensive forms of soda
such as bicarbonate of soda or soda crystals which are commonly employed in the
manufacture of dry soap or soap powder.
The soap, a portion of the "Roaster ash" and sufficient water to produce a thin
pasty mass, can be first mixed together in the mill, the remainder of the "Roaster
ash" being afterwards added gradually.
We do not limit ourselves to the proportions of the ingredients used but we find
that a good "dry soap" or soap powder is produced by employing for every
20 parts (by weight) of soap from 60 to 65 parts in all of "Roaster ash" and
from 10 to 15 parts of water.
Dated this 7th day of December 1896
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in the Manufacture and Production of Dry Soap or
Soap Powder.
We, FREDERICK WILLIAM WRIGHT, Chemist, and THE UNITED ALKALI
COMPANY LIMITED, both of G Exchange Buildings Liverpool, in the County of
Lancaster, do hereby declare the nature of this invention and in what manner
Price 8d1

page_text: the same is to be performed to be particularly described and ascertained in and
by the following statement:-
When the precipitate of crude bicarbonate of soda, as obtained by the ammonia-
soda process, is heated to recover therefrom the ammonia, a material is obtained,
technically known as "roaster ash," which has approximately the composition of
sesqui-carbonate of soda.
According to this invention, by grinding together this "roaster ash," soap,
and water, an excellent "dry soap" is produced having no causticity, giving a
good lather, and capable of being easily reduced to a very fine powder by ordinary
grinding and "dressing." The grinding can be done in a mortar mill, or other
suitable mill.
By this means "dry soap," or soap powder, is produced in a very economical
manner, and without the necessity for using any of the more expensive forms of
soda, such as commercial bicarbonate of soda, or soda crystals, which are at present
commonly employed in the manufacture of dry soap, or soap powder.
We prefer in carrying out this invention to mix together in a mill the soap
and a portion of the "roaster ash" (say about one third of the whole amount),
with sufficient water to produce a thin pasty mass, and then to gradually add the
remainder of the "roaster ash" so as to dry the soap powder.
We do not limit ourselves to the proportions of the ingredients used, but we
find that a good "dry soap," or soap powder, is produced by employing, for every
20 parts (by weight) of soap, say, from 60 to 65 parts, in all, of ""roaster ash,"
and from 10 to 15 parts of water.
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The mixture thus prepared is then finely ground when it is ready for the
market.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, 'we declare that what we
claim is:-
1. The manufacture and production of dry soap, or soap powder, from roaster
ash, soap and water.
2. The manufacture and production of dry soap, or soap powder, by first mixing
ordinary soap, "roaster ash," and water, and then drying the mixture by the
addition of a further quantity of "roaster ash," substantially as hereinbefore
described.
j Dated this 7th day of September 1897.
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents.