Improvements in the Making of Dies for Stamping Purposes.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Making of Dies for Stamping Purposes.
ARTHUR HENRY BAILEY, 83, Bevington Road, Aston Park, Warwickshire,
Manufacturer's Manager, do hereby declare the nature of this invention to be as
follows:
The old and usual process of making such dies, is to cut by hand the form or
pattern required into a solid steel block. This is of necessity a very long and
expensive process and where a die is required in the manufacture of articles of
fashion it is often on account of the short sale of the article and the length of
time the die takes in cutting that it does not pay a manufacturer to cut a
steel die, and cast iron dies have been proved to be quite useless where fine
work is required.
Now my idea to overcome these defects is by a process of casting the dies from
a special mixture of metals which I have proved stands the test of stamping to
my satisfaction, The way I purpose making the dies is as follows, I take a cast
in plaster of Paris of the article for which I require a die I build up this said
cast into the usual form and shape of an ordinary steel die, and of sufficient
strength to stand the stamping according to the depth of the article, and depth
of the work in the die. The said plaster model is then moulded in casting sand
in the usual manner and the special mixture of metals, which is as follows,
copper nine parts, tin one part, spelter one part, is cast into it in just the same
way as iron or brass casting. It will be readily seen and understood that the
great saving of time and expense is in the casting of the identical die with the
work in, for if cast properly from the said mixture of metals it will come out
very clear and will only require to be cleared and sharpened up. This of course
can be done in one twentieth part the time it would take to cut the same die
from solid steel, and for many purposes will answer just as well. Of course it will
be understood that if a die is required from any given drawing or design it would
first have to be modelled, embossed or chased up by hand in order to get the
plaster cast or model for the die.
D
1
17th day of October 1897
Improvements in the Making of Dies for Stamping Purposes.
I, ARTHUR HENRY BAILEY, late of 83, Bevington Road, Aston, but now of The
Glen, City Road, Birmingham, in the County of Warwick, Manager, do hereby
CQ77

page_text: declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement;-
The old and usual process of making such dies, is to cut by hand, the form or
pattern required into a solid steel die, this is of necessity a very long and
expensive process, and where a die is required in the manufacture of articles of
fashion it is often on account of the short sale of the article, and the length of
time the die takes in cutting that it does not pay a manufacturer to cut a
steel die, and cast iron dies have been proved to be quite useless, where fine
work is required, now my idea to overcome these defects is by a process of casting
the dies, from a special mixture of metal, which I have proved, stands the test
of stamping to my perfect satisfaction.
The way I propose making the die is as follows; I take a cast in plaster of
Paris of the article for which I require a die; I build up this said cast into the
usual form and shape of an ordinary steel die and of sufficient strength to stand
the stamping, according to the depth of the article and the depth of the work
required in the die, a mold is then made from the said plaster model in casting
sand and it is cast in the usual manner from my special admixture of metal
which is as follows viz.;-Copper 9 parts tin, one part, spelter, one part.
It will be readily seen and understood that the great saving of time and
expense is in the casting of the identical die required for if cast properly from
the said mixture of metal it will come out very clear, and will only require to be
cleared and sharpened up when it is finished ready for use; which of course.can
be done in very much less time than by cutting the die from the solid metal,
and then again a die made by this principle is much more perfect and true to
model and the stampings from such a die, much more like hand made or chased
articles, than if the die had been cut by hand, of course it will be understood,
that if a die is required from any given drawing or design it would first have to
be modelled, embossed or chased up by hand, in order to get the plaster cast or
model for die.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:
1. The method of making dies for stamping by the process, method or manu-
facture, as herein before described and set forth in this specification, as and for
the purpose specified.