Improvements IN ANNEALING AND REMOVING OF OXIDE OR SCALE FROM IRON & STEEL WIRE AND OTHER ARTICLES OF IRON AND STEEL
Year: 1872

page_text: LETTERS PATENT to Wilhelm Rath, of Plettenberg, in the Province
of Westphalia, for the Invention of “Improvements IN ANNEALING AND
REMOVING OF OXIDE OR SCALE FROM IRON & STEEL WIRE AND OTHER
ARTICLES OF IRON AND STEEL."
Sealed the 4th February 1873, and dated the 23rd September 1872.
PROVISIONAL SPECIFICATION left by the said Wilhelm Rath at the
Office of the Commissioners of Patents, with his Petition, on the
· 23rd September 1872.
I, WILHELM RATE, of Plettenberg, in the Province of Westphalia, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
ANNEALING AND REMOVING OF OXIDE OR SCALE FROM IRON & STEEL WIRE AND
OTHER ARTICLES OF IRON AND STEEL," to be as follows:
-
This Invention has for its object improvements in annealing and
removing of oxide or scale from iron and steel wire, and other articles
of iron and steel. For this purpose I dissolve chloride of calcium in
water, and boil the solution down to the consistency of molasses. Then
I immerse the wire or other article of iron or steel to be cleaned from

page_text: scale for a moment in the solution, taking care that every part is well
covered. This being accomplished I put the wire or article in a furnace
or annealing muffle and heat it up to a red heat for about a quarter of
an hour. I take it from the furnace or annealing muffle and let it cool;
then I immerse it and rinse it thoroughly in pure water, just the same
as in the old process with acids and lime.
The difference between wire so cleaned compared with the old acid
process is that the wire is made much tougher, so that it can be drawn
from 6 to 2 without annealing, and being then operated upon
again in the same way can be brought down to ¼””.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said Wilhelm Rath in the Great Seal Patent Office on
the 22nd March 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILHELM
RATH, of Plettenberg, in the Province of Westphalia, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-third day of September, in the
year of our Lord One thousand eight hundred and seventy-two, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Wilhelm Rath, Her special license that
I, the said Wilhelm Rath, executors, administrators, and assigns,
or such others as I, the said Wilhelm Rath, my executors, adminis-
trators, and assigns, should at any time agree with, and no others, from
time to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN ANNEALING AND
REMOVING OF OXIDE OR SCALE FROM IRON AND STEEL WIRE AND OTHER ARTICLES
OF IRON AND STEEL," upon the condition (amongst others) that I, the
said Wilhelm Rath, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the
same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.

page_text: NOW KNOW YE, that I, the said Wilhelm Rath, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement thereof, that is to
say: :-
This Invention has for its object improvements in annealing and
removing of oxide or scale from iron and steel wire and other articles of
iron and steel. For this purpose I dissolve chloride of calcium in water,
and boil the solution down to the consistency of molasses; then I
immerse the wire or other article of iron or steel to be cleaned from scale
for a moment in the solution, taking care that every part is well covered;
this being accomplished I put the wire or article in a furnace or
annealing muffle and heat it up to a red heat for about a quarter of an
hour; I take it from the furnace or annealing muffle and let it cool;
then I immerse it and rinse it thoroughly in pure water just the same
as in the old process with acids and limes.
The difference between wires so cleaned compared with the old acid
process is that the wire is made much tougher, so that it can be drawn
from 6 to 2 without annealing, and being then operated upon again
in the same way can be brought down to ¼".
What I claim is, the annealing and removing oxide and scale from
iron and steel wire and other articles of iron and steel by means of
chloride of calcium and heat, substantially described.
In witness whereof, I, the said Wilhelm Rath, have hereunto set
my hand and seal, this Nineteenth day of March, in the year of
our Lord One thousand eight hundred and seventy-three.
HTT TOTY DAM