Improvements in Producing Designs upon Metal Plates and like Surfaces.
Year: 1888

page_text: Date of Application, 6th Feb., 1888
Complete Specification Left, 6th Nov., 1888
Complete Specification Accepted, 14th Dec., 188
Improvements in Producing Designs upon Metal Plates and like
Surfaces.
I, FREDERICK HALL of 43 Suffolk Road, Sheffield in the County of York
Manufacturer, do hereby declare the nature of this invention to be as follows :-
This invention relates to an improved process of producing designs_apon plates of
any kind of metal suitable for the purpose, in an expeditious and effective manner,
and with several advantages over the processes at present in use.
It consists in making a die upon which the desired design is produced in relief
that is, the design is made to project, or stand prominent from the face of the said
die, which is in most cases a flat slab of steel, or other hard metal.
The design is finished so that no part of it can become attached to the softer metil
which is to receive the impression from the projecting design upon the die.
The plate of softer metal is then laid upon, or otherwise placed in juxta position
with the face of the die, and the two are passed through a suitable pair of rolls, or like
pressing machine; the result being that the projecting design is forced into the
softer metal, and produces an accurate counterpart, but sunk into the metal instead
of projecting from its face.
The design being sunk below the surface, it offers no obstruction to the spinning
tool, or burnisher, used in the process of manufacture, and other advantages also
arise from this novel method of producing designs in intaglio, or such as are sunk
below the face of the metal.
ROBT. F. DRURY,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Producing Designs upon Metal Plates and like
Surfaces.
I, FREDERICK HALL of 43 Suffolk Road, Sheffield in the County of York Manufac-
turer do hereby declare the nature of this invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention relates to an improved process for producing designs upon plates of
any kind of metal suitable for the purpose, in an expeditious and effective manner,
such improved process having several advantages over the processes at present in use
for the same purpose.
It consists in the first place in making the desired design by the ordinary method
of diesinking (or by other process) in relief upon a die, that is the design is made to
project or stand prominent from the face of the said die, which generally would be a
flat slab of steel, or of other hard metal.
The design is carefully finished so that no part of it can become attached to the
softer metal which is intended to receive the impression from the projecting design
formed upon the die.
The plate of softer metal upon which it is desired to reproduce the design, is then
laid upon or otherwise placed in juxta position with the face of the die, and the two
are then passed through a pair of suitable rolls or other like pressing machine, the
result being that the projecting design is forced into the softer metal, producing an
exact counterpart but sunk into the metal instead of projecting from its face.
The design so produced being sunk below the surface of the metal plate, offers no
obstruction, (when the said plate is being made into a tempot for example) to the
operation of the spinning tool or burnisher used in the process of manufacturo; other
advantages also arise from this novel method for producing designs in intaglio, or
sunk below the face of the metal.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what
I claim is
The improved method or process for producing intaglio designs upon plates of
metal used in the manufacture of Teapots and other like articles, substantially as
hereinbefore described.
דר .
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1000