IMPROVEMENTS IN THE MANUFACTURE OF HARDWARE FOR DOMESTIC AND INDUSTRIAL PURPOSES
Year: 1881

page_text: LETTERS PATENT“ to Friedrich Carl Glaser, of Berlin, in the Kingdom of
Prussia, and Empire of Germany, Engineer and Patent Solicitor, for an
Invention of IMPROVEMENTS IN THE MANUFACTURE OF HARDWARE FOR
DOMESTIC AND INDUSTRIAL PURPOSES." A communication from Carl Haegele,
of Geislingen, in the Empire of Germany, and Manager of the Wurtemburg
Hardware Manufactory.
PROVISIONAL SPECIFICATION left by the said Friedrich Carl Glaser at the
Office of the Commissioners of Patents on the 28th April 1881.
FRIEDRICH CARL GLASER, of Berlin, in the Kingdom of Prussia and Empire of
IMPROVEMENTS IN THE MANUFACTURE
Germany, Engineer and Patent. Solicitor.
OF HARDWARE FOR DOMESTIC AND INDUSTRIAL PURPOSES." (A. communication
from Carl Haegele, of Geislingen, in the Empire of Germany, and Manager of the
Wurtemburg Hardware Manufactory.)
According to this Invention in the production of hardware, copper plated sheet
iron is used in lieu of copper or its alloys. To this end on one surface of the iron,
which must have been previously cleaned and freed from surface impurities, a
copper plate also carefully cleaned is laid. At the edges this copper plate is turned
over, and between its bent edge and the iron a composition such as glue and chalk
is placed in order that no welding action may take place at that part.
In conducting this operation it is of great importance to get both metals. to bear
or hed against each other with exactitude, so that in the subsequent heating
and rolling processes the entrance between them of hol gases or air may be
prevented.
The presence of any flux or welding medium between the two plates is un-
necessary: The materials prepared as hereinabove described are placed in a
furnace, preferably formed as a segmental shaped retort, and are there brought to
nearly a white heat. In this state the plates are conducted to a rolling apparatus,
and are passed through the rolls until the desired thickness is attained,

page_text: The subsequent manufacture of the copper plated iron plates so produced into
coppered ware is effected as in the case of pure copper. For the production of
certain kinds of goods, for instance, bronzed copper ware, the process is considerably
simplified by the use of coppered plates according to this Invention.
In order to produce nickeled, silvered, gilt, or otherwise plated ware from this
copper plated sheet iron, it is cut into such sized or shaped pieces as after the
subsequent rolling operations will produce pieces of a size corresponding to the
dimensions and form of the object to be made. These cut pieces are nickeled,
silvered, gilt, or otherwise plated by the galvanic method, and are afterwards
rolled to the required sizes and thicknesses. By this combination of mechanical
and electro plating a greater density and solidity of the nickel silver, gilt, or other
covering, and also a finer polish is obtained than it is possible to produce by electro-
plating alone.
The same process, namely, rolling after electro plating, may also be employed for
articles produced from pure copper or from its alloys.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed by
the said Friedrich Car! Glaser in the Great Seal Patent Office ou the
30th August 1881.
FRIEDRICH CARL GLASER, of Berlin, in the Kingdom of Prussia and Empire of
Germany, Engineer and Patent Solicitor. "IMPROVEMENTS IN THE MANUFACTURE
OF HARDWARE FOR DOMESTIC AND INDUSTRIAL PURPOSES." (A communication
from Carl Haegele, of Geislingen, in the Empire of Germany, and Manager of the
Wurtemburg Hardware Manufactory.)
According to this Invention in the production of hardware copper plated sheet
iron is used in lieu of copper or its alloys. To this end on one surface of the iron
which must have been previously cleaned and freed from surface impurities a copper
plate also carefully cleaned is laid. At the edges this copper plate is turned over,
and between its bent edge and the iron a composition, such as glue and chalk, is
placed in order that no welding action may take place at that part.
In conducting this operation it is of great importance to get both metals to
bear or bed against each other with exactitude, so that in the subsequent
heating and rolling processes the entrance between them of hot gases or air may be
prevented..
The presence of any flux or welding medium between the two plates is
unnecessary. The materials prepared as herein beforedescribedare placed in a furnace
preferably formed as a segmental shaped retort, and are there brought to nearly a
white heat. In this state the plates are conducted to a rolling apparatus, and are
passed through the rolls until the desired thickness is attained. The subsequent
manufacture of the copper plated iron plates so produced into coppered ware is
effected as in the case of pure copper. For the production of certain kinds of goods,
for instance, bronzed copper ware, the process is considerably simplified by the use
of coppered plates according to this Invention.
Articles of hardware may be constructed wholly or partly of wire, in which case
copper plated iron wire produced in the manner herein above described for copper
plated sheet iron may be employed. An iron rod is surrounded with sheet copper
under the conditions and with the precautions already explained with reference to
the manufacture of copper plated sheet iron, and the whole is raised to welding
heat when it is passed quickly through wire rolling machinery and is afterwards
wire drawn.
In the Provisional Specification there is described a method of producing nickled,
silvered, gilt, or otherwise plated ware from this copper plated sheet iron and also
from pure copper and its alloys by cutting the material into pieces of suitable form
and electro-plating and rolling such pieces, but importance is no longer attached to
this part of the Invention and no claim is laid to it.
Having now described the nature of the said Invention, and the manner in which
it is to be or may be performed or carried into practical effect (as communicated to
me as aforesaid), I would have it understood that what is claimed is,-
The use in the manufacture of hardware of material consisting of copper com-
bined or united with iron by heating and rolling or hammering without addition of
a welding medium, substantially as hereinbefore described and set forth.
In witness whereof, I, the said Friedrich Carl Glaser, have hereunto set my
hand and seal, this Twentieth day of August, in the year of our Lord
One thousand eight hundred and eighty one.
F. C. GLASER. (L.S.)