AN IMPROVEMENT FOR MANUFACTURING A SOAP FOR CLEANSING, BLEACHING, AND PURIFYING PURPOSES
Year: 1858

page_text: COMPLETE SPECIFICATION filed by the said Richard Williams at the
Office of the Commissioners of Patents, with his Petition and De-
claration, on the 27th March 1858, pursuant to the 9th Section of the
Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
WILLIAMS, of No. 8, Bishop's Road, Victoria Park, in the County of Middlesex,
England, Soap Boiler, send greeting.
WHEREAS I am in possession of an Invention for "AN IMPROVEMENT FOR
MANUFACTURING A SOAP FOR CLEANSING, BLEACHING, AND PURIFYING PURPOSES,"
and have petitioned Her Majesty to grant unto me, my executors, adminis-
trators, and assigns, Her Royal Letters Patent for the same, and have made
solemn declaration that I verily believe myself to be the true and first Inventor
thereof.
NOW KNOW YE, that I, the said Richard Williams, do hereby declare
that the following Complete Specification, under my hand and seal, fully
describes and ascertains the nature of my said Invention, and the manner in
which the same is to be performed, to be as follows:-
Ingredients for manufacturing one ton of soap:-
Soda.
Nitrate potass
Caustic potass
Tallow
Fuller's earth
Rock salt
Stone lime
Bichromate potass
Water
1
1
1
Cwt. qrs.
Tbs.
3
1
0
1
10
1
10
1
3
0
1
3
0
1 0
20
9 20
0
0
8

page_text: To manufacture the above-named soap, first prepare 1 cwt. 3 qrs. O of fuller's
earth, by baking it over a slow fire, and be very cautious not to calcine it so as
to destroy the fatty matter which it contains; wheu thoroughly baked add to
it 30 gallons of water to be well stirred until it becomes a thick liquid, and
the first part of the process is now complete.
Secondly, take 2 cwt. 0 qr. 0 lb. of stone lime, place it in a leech and slake it
by adding 25 gallons of water, when slaked add 3 cwt. 1 qr. O lb. of soda,
1 qr. 10 lbs. of caustic potass and 180 gallons of water. Filter the whole through
the lime into a receiver from a tap at the bottom of the leech. This filtration is
to render the carbonate caustic; when you have 40 gallons filtered, put it into a
pan with 1 cwt. 3 qrs. 0 lb. of tallow over a hot and strong fire, continually
stirring until it arrives at 250°, still keep up the fire for 6 hours, then add 50
gallons more, from the leech, stir it well, and boil as before, adding from time
to time more liquor from the receiver; as the former evaporates, and when at
the highest point of heat required, add gradually 1 cwt. O qrs. 0 lb. of rock
salt, boil well for one hour, and let it rest in the pan for 24 hours, draw off the
spent lye which will be at the bottom of the pan, and add 50 gallons more
liquor from the receiver with 1 qr.. 10 lbs. of nitrate potass and 8 lb. of
bichromate potass; boil again for 4 hours, then add your prepared liquid
fuller's earth previously filtered, stir it for one hour, and then it will be ready
to be drawn off, and as soon as cold will be fit for use.
In witness whereof, I, the said Richard Williams, have hereunto set my
hand and seal, this 27th day of March, in the year of our Lord
One thousand eight hundred and fifty-eight.
RICHARD WILLIAMS. (L.S.)