Improved Manufacture of Disinfecting Powder.
Year: 1891

page_text: Date of Application, 4th June, 1891
Complete Specification Laft, 3rd Mar 1892-Accepted. 9th Apr., 1892
PROVISIONAL SPECIFICATION.
Improved Manufacture of Disinfecting Powder.
I, THOMAS HOWELL WILLIAMS Ockbrook, near Derby, Secretary of a Public
Company, do hereby declare the nature of this invention to be as follows:-
I take hops, after being used for brewing purposes, sometimes called spent hops,
dried by exposure to the atmosphere or by artificial means.
The dried hops may be ground in a edge runner mill or other suitable grinding
apparatus and sifted.
The powder produced is mixed by the aid of the same edge runner mill or other
suitable mixing apparatus with 10, 15 or 20 per cent. of carbolic acid thus producing
carbolised hops or disinfecting powder which may be used for all purposes that an
ordinary disinfecting powder is used for.
Other antiseptic substances can be used instead of carbolic acid, such as, sanitas,
creosote.
If the color of the ground hops is objectionable, red ochre or other suitable
pigment may be ground with it in suitable quantities to give it desired shade
or tint.
1 Juno 1901
COMPLETE SPECIFICATION.
Improved Manufacture of Disinfecting Powder.
I THOMAS HOWELL WILLIAMS of Ockbrook near Derby Secretary of a
Public Company 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 :-
I take hops which have been used for brewing purposes sometimes called " "spent
The dried hops
hops" dried by exposure to the atmosphere or by artificial means.
may be ground in an edge runner mill or other suitable grinding apparatus and
sifted to secure an even size.
The grinding is done in a dry state and continued until the material will pass
through the sieve of the required size say a mesh of 16 to 12 per inch.
The dry powder thus produced is mixed by the aid of the same edge runner mill
or other suitable apparatus with ten fifteen or twenty per cent. or other suitable
quantity of carbolic acid until the carbolic acid is entirely absorbed, the product
being a practically dry powder. Thus producing carbolised or disinfecting hop
powder which may be used for all purposes that an ordinary disinfecting powder
may be used for.
I do not confine myself to the use of carbolic acid. Other
disinfecting and antiseptic substances such as sanitas, creasote, and eucalyptus can
be used instead of or together with carbolic acid.
If the colour of the ground hops is objectionable red ochre or other pigment may
be ground or mixed with the powder in suitable quantities to give any desired shade
) or colour.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is performed I declare that what I
claim is :-
1. The use of hops as a base or vehicle for disinfecting or antiseptic powders.
5 In the manufacture of disinfecting and antiseptic powder the combination with

page_text: hops of disinfecting or antiseptic substances such as carbolic acid, sanitas, creasote,
eucalyptus, or the like substantially as specified.
3. The manufacture of disinfecting or antiseptic powder substantially as
specified.
Dated this 2nd day of March 1892
THOMAS HOWELL WILLIAMS.