Improvements relating to the Annealing of Steel or Iron.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements relating to the Annealing of Steel or Iron.
We, DONALD CAMERON DALZELL, of 23 Station Road, Handsworth, in the
County of Stafford, Brassfounder, and ALFRED FAIRLEY, of 10 Shadwell Street,
in the City of Birmingham, Steel Manufacturer, do hereby declare the nature of
this invention to be as follows:-
This Invention consists of an improved process whereby we are enabled to more
efficiently and expeditiously anneal bars or other articles of steel or iron than by
the ordinary processes of annealing.
In the annealing of bars or other articles of steel or iron in accordance with our
invention we dispense with the use of powdered red hematite or other substance
for covering the articles within the furnace, but submit the same to a pre-
liminary treatment before subjecting them to the annealing temperature. Such
preliminary treatment consists in coating the bars or other articles to be annealed
with red hematite ore, clay, lime, or other suitable substance, preferably by
immersing them in a solution or plastic form of the substance or by applying the
same to the articles by brushes or in other convenient manner by which they will
receive a complete coating or covering..
After the coating or covering material has become sufficiently dried or set upon the
articles; they are placed within the annealing furnace and subjected to the
required temperature.
By thus treating the bars or other articles before inserting them in the anneal-
ing furnace, we are enabled to more expeditiously and efficiently anneal the same
than by the ordinary method of placing the articles direct into the furnace
without such preliminary treatment.
Improvements relating to the Annealing
лгон.
We, DONALD CAMERON DALZELL, of 23 Station Road, Handsworth, in the
County of Stafford, Brassfounder, and ALFRED FAIRLEY, of 10 Shadwell Street,
in the City of Birmingham, Steel Manufacturer, do hereby declare the nature of
Price 8d1

page_text: this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This Invention consists of an improved process whereby we are enabled to more
efficiently and expeditiously anneal bars or other articles of steel or iron than by
the ordinary processes of annealing.
In the annealing of bars or other articles of steel or iron in accordance with our
invention we dispense with the use of powdered red hematite or other substance
for covering the articles within the furnace, but submit the same to a pre-
liminary treatment before subjecting them to the annealing temperature. Such
preliminary treatment consists in coating the bars or other articles to be annealed
with red hematite ore, or with clay, lime, or other suitable substance, preferably
by immersing them in a plastic form of the substance, or by applying the
same to the articles by brushes or in any other convenient manner by which they
will receive a complete coating or covering.
After the coating or covering material has become sufliciently dried or set upon the
articles they are placed within the retort or annealing furnace and subjected to
the required temperature.
By thus treating the bars or other articles before inserting them in the anneal-
ing furnace, we are enabled to more expeditiously and efficiently anneal the same
than by the ordinary method of placing the articles direct into the furnace
without such preliminary treatment.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:
In the annealing of bars or other articles of steel or iron, the subjection of the
articles to a preliminary treatment before placing them in the retort or furnace,
substantially as described.
MARKS & CLERK,
18 Southampton Buildings, London, W.C., and
13 Temple Street, Birmingham, Agents for the Applicants.