Method of and Apparatus for Treating and Annealing Sheet Metal
Year: 1897

page_text: Date of Application, 3rd June, 1897-Accepted, 11th Sept., 1897
I, WILLIAM EDWIN HARRIS, Rolling Mill Superintendent, of Niles, Trumbull
County, State of Ohio, one of the United States of North America, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following
statement:
My invention relates to an improved method of treating and annealing metallic
sheets whereby there is imparted to the sheets, without mechanical treatment,
the appearance of Russia or hammered sheets or plates.
This invention is an improvement on the method set forth in Letters Patent
of the United Kingdom of Great Britain, No. 9552, granted to me and bearing
date the fifth day of May, 1896, for Method of and Apparatus for Treating and
Annealing Sheet Metal.
In carrying out my improved method, I first roll the metal into sheets while
in a heated form then anneal the sheets, then cold roll the sheets, then stack
the sheets again in the annealing box with a mineral medium interposed between
the different sheets, and then anneal the sheets for a second time. The interposed
medium that I prefer, and have found to be practicable is mineral, such as a
mixture of copper filings, soapstone, pulverized iron ore and plumbago or black lead
or an analogous substance, but I do not desire to be limited to these particular
mineral matters, nor do I desire to be limited to any particular medium for keeping
the sheets apart.
In making the different grades of iron, I use more or less of the different
ingredients to make the different shades. A specimen composition is as follows:-

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:-
1. The improved method of treating and annealing metallic sheets, which con-
sists in annealing the sheets, then cold rolling the sheets, then stacking the sheets
with a separating medium of copper filings, pulverized soapstone, plumbag: or
black lead or analogous substance interposed between the respective sheets, and
then annealing the sheets a second time, substantially as set forth.
2. The improved method of treating and annealing metallic sheets, which con-
sists in first annealing the sheets, then cold rolling the sheets, then stacking the
sheets with interposed layers of copper filings, pulverized soapstone, plumbago or
black lead or analogous substance between the respective sheets, and then annealing
the sheets a second time, substantially as set forth.
3. The improved method of annealing metallic sheets herein described, which
consists in placing upon the sheets a coating of copper filings, pulverized soap-
stone, plumbago or black lead or analogous substance, and then annealing the
sheets, substantially as described.
4. The improved method of annealing metallic sheets herein 'described, which
consists in placing upon the sheets a coating of copper filings, pulverized soap-
stone, iron ore, plumbago or black lead or analogous substance, and then annealing
the sheets, substantially as described.
Dated this Jist day OL May
JOHNSONS,
115 St. Vincent Street, Glasgow, Applicant's Agents.