A New or Improved Manufacture of Compound Metallic Plates, Sheets, and Strips for various purposes.
Year: 1895

page_text: Date of Application, 16th Aug., 1895
Complete Specification Left, 4th May, 1896-Accepted, 4th July, 1896
PROVISIONAL SPECIFICATION.
A New or Improved Manufacture of Compound Metallic Plates,
Sheets, and Strips for various purposes.
1, SAMUEL TAYLOR, of Nos. 72 and 73 Lionel Street, Birmingham, in the
County of Warwick, Manufacturer of Plated and other Metals do hereby
declare the nature of this invention to be as follows:-
My invention consists in manufacturing by the process or combination of
processes hereinafter described compound metallic plates, sheets and strips to be
used in the manufacture of ornamental sheet metal articles, jewellery, coins and for
other purposes.
The said plates, sheets and strips which I manufacture according to my invention
are composed of two, or more, differently coloured metals, say copper and silver or:
silver and gold, arranged alternately or in other desired order, when more than two
metals are employed, so as to produce a compound or variegated sheet, plate or
strip.
In carrying my invention into effect for the production of a compound sheet or
plate, say, of copper and silver, I take a series of plates of copper and silver the.
silver plates being preferably thinner than the copper plates and I pile the said
plates upon each other alternately, the top and bottom plates being preferably of
copper and by the process of sweating, that is, raising the piled plates, to incipient
fusion in the ordinary way, the surfaces of the several plates are soldered or
alloyed together, thereby forming a compound metallic slab of alternating layers:
of copper and silver. By cutting this slab transversely I form a series of flat bars.
or thick plates which by rolling are reduced in thickness and the respective metals
spread out, the surfaces of the plate. having the appearance of a plate of copper
striped with parallel stripes of silver. From the sheet metal thus produced various
articles may be made by the processes of spinning, stamping or the other processes
by which ductile metals are worked or fashioned.
Although I have only described my invention with respect to two metals yet
I do not limit myself thereto as more than two metals may be employed; for
example, copper, silver and gold may be used in the production by sweating of the
slab hereinbefore referred to.
The plates of different metals from which the pile or slab is made may have the
same or different thicknesses according to the character of the plates sheets or
strips to be made.
In applying my invention to the manufacture of strips from which coins are to be
made I prefer to employ two plates of the less costly metal, say, copper and insert
between them a plate of the more.costly metal, say, silver or gold. By making
coins from these compound strips, coins of a given nominal value may be made of
much less bulk than coins of an equal value made from the less costly metal.
Compound plates of silver and gold for the manufacture of coins may be made in
the way I have described with respect to compound plates of copper and silver or
copper and gold.
Dated this Sixteenth day of August 1895
I
W. T WHITEMAN,
Agent for the Applicant.

page_text: A New or Improved Manufacture of Compound Metallic Plates,
Sheets, and Strips for various purposes.
I, SAMUEL TAYLOR of Nos. 72 and 73 Lionel Street, Birmingham, in the
County of Warwick, Manufacturer of Plated and other Metals, do hereby
declare the nature of my invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
My invention consists in manufacturing by the process or combination of
processes hereinafter described; compound metallic plates, sheets and strips to be
used in the manufacture of ornamental sheet metal articles, jewellery coins and for
other purposes.
The said plates, sheets and strips which I manufacture according to my invention
are composed of two or more differently coloured metals, Bay copper and silver or
silver and gold, arranged alternately or in other desired order, when more than two
metals are employed, so as to produce a compound or variegated sheet, plate or
strip.
In carrying my invention into effect for the production of a compound sheet or
plate, say of copper and silver, I take a series of plates of copper and silver the
silver plates being preferably thinner than the copper plates, and I pile the said
plates, made of any desired thickness, upon each other alternately, the top and
bottom plates being preferably of copper, and by the process of sweating, that is,
raising the piled plates to incipient fusion in the ordinary way, the surfaces of the
several plates are soldered or alloyed together and made homogeneous thereby
forming a compound metallic slab of alternating layers of copper and silver. By
cutting this slab transversely or at right angles to the direction of its layers,
I form a series of flat bars or thick plates which by rolling are reduced in thickness
and the respective metals spread out, the surfaces of the plate having the appearance
of copper striped with parallel stripes of silver.
Figure 1 represents in perspective a pile or slab of alternating plates or layers of
copper and silver made by sweating in the manner described, a representing the
copper plates and the thinner silver plates, the top and bottom plates of the pile
being of copper.
By cutting the compound pile or slab at the vertical dotted lines c, c, that is,
transversely, or at right angles to the direction of the layers of the pile, a series of
flat bars or thick plates of the kind represented in Figure 2 is produced.
Figure 3. represents a striped or compound plate or sheet which has been
produced by rolling a flat bar or thick plate of the kind represented in Figure 2,
that is to say, by rolling the compound bar or plate Figure 2. longitudinally as
indicated by the arrows it is reduced in thickness and the respective metals spread
out, the surfaces of the plate having the appearance of copper striped with parallel
stripes of silver, the silver stripes.passing from one face to the opposite face of the
rolled compound sheet. In the striped plate or sheet Figure 3. the silver stripes
embedded in the copper a are marked.b.
From the sheet metal thus produced various articles may be made by the
processes of spinning, stamping or the other processes by which ductile metals are
worked or fashioned. By cutting the striped sheet diagonally the striped sheets
of the compound metal may have the appearance represented in Figure 4, that is,
the silver parallel stripes b are inclined to the sides of the sheet instead of being
parallel thereto..
The striped or compound sheets made according to my invention may be used
for plating in the ordinary way one or both sides of a plain sheet of conner: for

page_text: example, a plate of copper may be sweated on one side of the striped sheet and
afterwards rolled so as to produce a copper sheet striped with silver on one side
only as represented in edge view in Figure 5, where the silver stripes on the copper
sheet are marked b; or a sheet of the striped or compound metal is placed on
opposite sides of the plain sheet of copper and the whole sweated and rolled together
so as to produce a copper sheet plated on both sides with striped metal as
represented in Figure 6, where the silver stripes are marked b, b.
Although I have only described and represented my invention with respect to
two metals yet I do not limit myself thereto as more than two metals may be
employed; for example, copper, silver and gold may be used in the production by
sweating of the slab herein before referred to.
The plates of different metals from which the pile or slab is made may have the
same or different thicknesses according to the character of the plates, sheets or
strips to be made.
When the different metals to form the pile or slab cannot be joined or alloyed
together by sweating they may be heated and soldered together. For example,
plates of copper, German silver and brass may be soldered together to form the
compound pile or slab from which the thick plates are cut and afterwards rolled
into sheets, plates or strips.
In applying my invention to the manufacture of strips from which coins are to
be made I prefer to employ two plates of less costly metal, say, copper and insert
between them a plate of the more costly metal, say, silver or gold. By making
coins from these compound strips, coins of a given nominal value may be made of
much less bulk than coins of an equal value made from the less costly metal.
Figures 7, 8, 9 and 10 represent coin blanks made from compound plates of
copper and silver or copper and gold. In Figure 7 the copper body of the coin is
provided with a thin stripe of silver or gold marked band in Figure 8 with a
broader stripe of silver or gold marked d. In Figure 9 the copper body of the
coin blank is provided with two parallel stripes of silver or gold marked e, e and in
Figure 10 with three parallel stripes of silver or gold marked f, f.
Compound plates of silver and gold for the manufacture of coins may be made in
the way I have described with respect to compound plates of copper and silver or
copper and gold.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed 1 declare that I claim
as my invention:-
:-
The new or improved manufacture of compound metallic plates, sheets and strips
for various purposes hereinbefore described and illustrated in the accompanying
drawing that is to say, manufacturing compound or striped or variegated sheets,
plates or strips by piling plates of two or more differently coloured metals upon
each other alternately or in any other desired order, when more than two metals
are used, and by the process of sweating or by soldering produce a compound
metallic pile or slab of alternating or other arranged layers of the metals; cutting
the compound pile or slab at right angles to the direction of its layers into flat bars or
thick plates and rolling them so as to produce plates sheets or strips having parallel
stripes of one or more differently coloured metals substantially as herein before
described and illustrated; also the use of the said striped or compound plates
sheets or strips for plating one or both sides of a plain metallic sheet or metallic
backing substantially as described and illustrated.
Dated the Second day of May 1896.
SAMUEL TAYLOR.