A NEW OR IM- PROVED DOUBLE SHEET METAL FOR THE MANUFACTURE OF CARTRIDGE SHELLS AND OTHER USEFUL ARTICLES
Year: 1877

page_text: LETTERS PATENT to William Morgan-Brown, of the Firm of Brandon and
Morgan-Brown, Engineers and Patent Agents, of 38, Southampton Buildings,
London, and 1, Rue Laffitte, Paris, for the Invention of "A NEW OR IM-
PROVED DOUBLE SHEET METAL FOR THE MANUFACTURE OF CARTRIDGE SHELLS
AND OTHER USEFUL ARTICLES." A communication from abroad by Charles
D. Leet and Henry A. Chapin, of Springfield, Massachusetts, United States of
America.
Sealed the 6th October 1877, and dated the 18th April 1877.
PROVISIONAL SPECIFICATION left by the said William Morgan-Brown at
the Office of the Commissioners of Patents on the 18th April 1877.
WILLIAM MORGAN-BROWN, of the Firm of Brandon and Morgan-Brown, Engineers
and Patent Agents, of 38, Southampton Buildings, London, and 1, Rue Laffitte,
Paris. "A NEW OR IMPROVED DOUBLE SHEET METAL FOR THE MANUFACTURE OF
CARTRIDGE SHELLS AND OTHER USEFUL ARTICLES." A communication from abroad
by Charles D. Leet and Henry A. Chapin, of Springfield, Massachusetts, United
States of America.
The object of this Invention is to produce for manufacturing purposes a double
sheet metal, one side of which shall be brass and the other side copper, said metals
being permanently united together before rolling.
For many purposes neither brass nor copper alone answers satisfactorily the
requirements of certain objects of manufacture, for instance, cartridge shells made
of either metal before mentioned possess grave faults, which appear to be entirely
obviated by making them from sheets of metal composed of the two metals united
into one sheet, as herein-before described.
The lack of any considerable elasticity in copper has occasioned its rejection by
manufacturers of certain goods, although its durable qualities made it the most
desirable metal for use; consequently recourse has been had to brass to obtain
elasticity and stiffness, but at the expense of durability if exposed to any corrosive
action.
In this Invention the double metal is produced, as described, by uniting together
by soldering, fusion, sweating, or casting ingots, bars or thick sheets of copper and

page_text: brass, and afterwards rolling them to any desired thickness, so as to combine in a
sheet of it the desirable qualities of both metals, and to avoid the objections arising
from the use of either metal separately in certain articles of manufacture.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Morgan-Brown in the Great Seal Patent Office on the 18th
October 1877.
WILLIAM MORGAN-BROWN, of the Firm of Brandon and Morgan-Brown, Engineers
and Patent Agents, of 38, Southampton Buildings, London, and 1, Rue Laffitte,
Paris. "A NEW OR IMPROVED DOUBLE SHEET METAL FOR THE MANUFACTURE OF
CARTRIDGE SHELLS AND OTHER USEFUL ARTICLES." A communication from abroad
by Charles D. Leet and Henry A. Chapin, of Springfield, Massachusetts, United
States of America.
The object of this Invention is to produce for manufacturing purposes a double
sheet metal, one side of which shall be brass and the other side copper, said metals
being permanently united together before rolling.
For many purposes neither brass nor copper alone answers satisfactorily the
requirements for certain objects of manufacture; for instance, cartridge shells made
of either metal before mentioned possess grave faults, which appear to be entirely
obviated by making them from sheets of metal composed of the two metals united
into one sheet, as herein-before described.
The lack of any considerable elasticity in copper has occaisoned its rejection by
manufacturers of certain goods, although its durable qualities made it the most
desirable metal for use; consequently recourse has been had to brass to obtain
elasticity and stiffness, but at the expense of durability if exposed to any corrosive
action.
In this Invention the double metal is produced, as described, by uniting together
by soldering, fusion, sweating, or casting ingots, bars, or thick sheets of copper and
brass, and afterwards rolling them to any desired thickness, so as to combine in a
sheet of it the desirable qualities of both metals, and to avoid the objections arising
from the use of either metal separately in certain articles of manufacture.
Having now described and particularly set forth the nature of the said Invention,
and the manner of carrying the same into effect, I would have it understood that
what I claim is, a new article of manufacture, a sheet metal made from pieces of
copper and brass united together in ingots, bars, or thick sheets and rolled to any
desired thickness, substantially as set forth.
In witness whereof, I, the said William Morgan-Brown, have hereunto set my
hand and seal, this Seventeenth day of October, in the year of our Lord
One thousand eight hundred and seventy-seven.