An Improved Compound or Mixture for Freezing or Chilling.
Year: 1894

page_text: Date of Application, 31st Mar., 1894
Complete Specification Left, 17th Dec., 1894-Accepted, 19th Jan., 1895
PROVISIONAL SPECIFICATION.
An Improved Compound or Mixture for Freezing or Chilling.
I KING CHARLES EDMUNDS late of 12 Creek Row, Calcutta in the Indian
Empire now of Brooks' Hotel 33 and 34 Surrey Street, Strand in the County
of London, Merchant do hereby declare the nature of my invention to be as
follows:-
The object of my invention is to provide a freezing or chilling compound or
mixture by the action of the ingredients of which intense cold can be rapidly
produced economically and without injury to the vessels in which it is used.
The compound or mixture consists of sulphate of soda, nitrate of ammonia,
phosphate of soda, sulphate of ammonia and diluted nitric acid. I do not limit
myself to precise proportions but the following give good results. Sulphate of
soda 4 lbs., nitrate of ammonia 3 lbs., phosphate of soda 1 lb., sulphate of ammonia
1 lb. and two ounces of nitric acid diluted with 4 lbs. of water.
The mixture or compound is well suited for use in an apparatus such as is
described in the Specification of Letters Patent No. 16782 granted to me and
dated 6th September 1893 but it can be used in other apparatus in which it is
required to produce freezing or chilling.
Dated this 31st day of March 1894.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SPECIFICATION.
An Improved Compound or Mixture for Freezing or Chilling.
I, KING CHARLES EDMUNDS, late of 12 Creek Row, Calcutta, in the Indian
Empire and of Brook's Hotel, 33 and 34 Surrey Street, Strand, in the County of
London, Merchant, do hereby declare the nature of my invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
The object of my invention is to provide a freezing or chilling compound or
mixture by the action of which intense cold can be rapidly produced, economically
and without injury to the vessels in which it is used.
The compound, or mixture, according to my invention, consists of the following
ingredients, or matters viz. :-Sulphate of soda; nitrate of ammonia; phosphate of
soda sulphate of ammonia; and diluted nitric acid. I do not limit myself to
precise proportions but the following give good results viz:-Sulphate of soda, 4 lbs.;
nitrate of ammonia, 3 lbs.; phosphate of soda, 1 lb.; sulphate of ammonia 1 lb.
and two ounces of nitric acid, diluted with 4 lbs. of water.
The mixture, or compound, is well suited for use in an apparatus such as is
described in the Specification of Letters Patent No. 16782, granted to me and
dated the 6th day of September 1893 but it can be used in any other apparatus in
which it is required to produce freezing, or chilling.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is.-
1st. A compound, or mixture, for freezing or chilling, consisting of, or containing,
sulphate of soda; nitrate of ammonia; phosphate of soda; sulphate of ammonia
and dilute nitric acid.
2nd. A. compound, or mixture, for freezing or chilling, consisting of or containing
the ingredients, or materials, hereinbefore stated, in, or about the proportions
specified.
Dated this 17th day of December 1894.
JOHNSONS & WILLCOX,
Agents.