A New Process for Staining or Colouring Metals and other Materials.
Year: 1897

page_text: Date of Application, 5th Apr., 1897
Complete Specification Left, 3rd Jan., 1898-Accepted, 5th Feb.,
1898
PROVISIONAL SPECIFICATION.
A New Process for Staining or Colouring Metals and other Materials.
We, FRANK Moss, of 60, Gough Road, Edgbaston, in the County of Warwick,
Watch Manufacturer, and SAMUEL JOHN DAVIS; of 263, Hagley Road, Edgbaston,
aforesaid, Jeweller, do hereby declare the nature of this invention to be as
follows:-
This invention relates chiefly to a process for staining or colouring metals
of all descriptions or may be used for other suitable purposes such as for staining
wood, stone plaster or any composition and it consists in reducing steel or
iron, etc., to a partial liquid state by means of acids and then purifying same
which with the addition of water forms the staining mixture.
The article required to be stained or coloured (when of metal) is immersed in
or coated with the solution of mixture and subjected to different processes of
damp and dry heat at varying degrees of temperature and for certain periods
of time.
After the completion of the first process viz., the immersing and heating we
may if necessary subject the article to further applications of the solution, we can
also when required in addition to the effect produced under the above treatment,
change the colour of the stain by adding the necessary colour.
In order to polish the stained metal a scratch brush or other suitable means
may be employed.
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Dated
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3rd day of April 1907.
EDWD. J. PAYNE & SON,
Warwick Chambers, 104, Colmore Row, Birmingham,
Patent Agents for the Applicants.
A New Process for Staining or Colouring Metals and other Materials.
We, FRANK Moss, of 60, Gough Road, Edgbaston, in the County of Warwick,
Watch Manufacturer, and SAMUEL JOHN DAVIS, of 263, Hagley Road, Edgbaston,
aforesaid, Jeweller, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
Our invention relates chiefly to a process for staining or colouring steel iron
and other metals and may also be used for staining other substances such as
wood stone or any composition. For this purpose we use as staining media
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page_text: solutions of salts of one or more metals. In order that our invention may be
clearly understood we will describe our process in detail as applied to iron or
steel. For this purpose a good stain may be prepared as follows in or about the
following proportions.
To equal parts of hydrochloric acid and nitric acid for example 1 pint of each,
half the quantity of perchloride of iron is added with say about one ounce of
powdered cupric sulphate. To these ingredients are added about 3 ounces of
steel or iron and 22 pints of water. After these ingredients have been thoroughly
mixed the mixture is filtered and the solution which comes through the filter
forms the staining solution.
The article required to be stained or coloured is first of all thoroughly cleansed
and is then coated with or dipped into the solution and placed in a dry heat
chamber at about 100° Fahrenheit for a period of say 20 or 30 minutes after
which the article is exposed to steam for about the same period of time. It is
then placed in the dry heat chamber again for other 20 or 30 minutes and is
then placed in boiling water and boiled for about the same time.
After this treatment it is immersed in cold water and may then be scratch
brushed. This treatment may be repeated as often as desired.
We may also when required in addition to the effect produced under the
above named treatment modify the colour of the staining solution by the addition
of any particular colouring matter.
For other purposes than metal staining we may proceed in a similar manner
as regards the immersion or coating of the article with the solution or mixture.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what
we claim is:-
:-
1st. The method of staining or colouring metals and other substances by
dipping them into or coating them with a solution of the salts of one or more
metals and afterwards subjecting them to dry heat and damp heat treatment
substantially as described.
2nd. Staining solutions for metal and other substances consisting of a solution
of salts of one or more metals substantially as described.
3rd. Fixing stains in metal or other substances by exposing them alternately
to the action of dry heat and damp heat substantially as described.
Dated this 1st day of January 1898.
EDWD. J. PAYNE & SON,
Warwick Chambers, 104, Colmore Row, Birmingham,
Patent Agents for the Applicants.