Improvements in Stamping Articles of Metal.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Stamping Articles of Metal.
I, Dr. CHARLES ALBERT TIMME, of 30 West 59th Street, New York, United
States of America, do hereby declare the nature of this invention to be as
follows:-
This invention relates to a method of stamping by means of shot or the like and
has for its object to dispense with the use of a punch, the said invention being
especially designed for stamping unsymmetrical and inturned articles of metal.
To enable my invention to be fully understood I will describe it in connection
with the manufacture of the plate or base of a set of artificial teeth and with the
repair of such plates provided with teeth, reference being had to the accompanying
drawing, in which
Figure 1 is a vertical section of a press containing shot in which the object
to be pressed with its mould or matrix is embedded:
Figure 2 is a plan of the same and shews the plate laid in the press but not
covered with shot:
Figures 3 and 4 are sections on the lines, and ', ' of Figures 4* respectively.
Figure 4 is a view of a plate in position on its mould:
Figures 5 to 7 illustrate a plate partly provided with teeth.
In order to stamp unsymmetrical and inturned objects of all kinds, without the
employment of a punch, according to the present invention, I employ a press A in
which is introduced shot a, or the like which totally surround the object b to be
stamped and its matrix or mould c.
When the object to be stamped is wholly embedded in the shot, a stamp-
hammer d is inserted in the press and the shaping of the object embedded in the
shot with its mould is effected by hammering the said stamp d.
In manufacturing plates by my invention, the metal is caused by the shot to take
a shape so as to fit exactly on, or into, the slightest elevations or depressions of
the mould or matrix c because the force of the blows is transmitted throughout
through the medium of the shot.
The strength of the blows on the stamp-hammer, the force of which is trans-
mitted by the shot to the object to be stamped, must be increased or diminished,
that is to say, regulated according to the shape and strength of the article to be
stamped.
My invention can also be advantageously applied to the repairing of plates pro-
vided with teeth which have got out of shape such for instance, as that shewn
in Figures 5 to 7. The repairing of such a plate accorung to my invention is
considerably cheaper and quicker than by the method as heretofore practised,
because the teeth need not be removed as has been necessary heretofore on account
of a punch being used in the operation.
As the shot or the like surround the teeth of the plate on all sides, and as the
said plate is supported on its mould or matrix, the force of the blows can only
take effect on those parts which are not of their original shape, that is to say, in

page_text: other words, only the plate itself is acted on, the teeth being unaffected as they are
supported by the shot surrounding them..
Dated this 2nd day of October. 1896.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
Improvements in Stamping Articles of Metal.
I, Dr. CHARLES ALBERT TIMME, late of 30 West 59th Street, New York, United
States of America, now of 62 and 63 Unter den Linden, Berlin, in the German
Empire, 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 a method of stamping by means of shot or the like and
has for its object to dispense with the use of a punch, the said invention being
especially designed for stamping unsymmetrical and inturned' articles of metal.
To enable my invention to be fully understood I will describe it in connection
with the manufacture of the plate or base of a set of artificial teeth and with the
repair of such plates provided with teeth, reference being had to the drawing filed
with my Provisional Specification, in which
Figure 1 is a vertical section of a press containing shot in which the object
to be pressed with its mould or matrix is embedded:
. Figure 2 is a plan of the same and shews the plate laid in the press but not
covered with shot:
-
Figures 3 and 4 are sections on the lines, and e, al of Figures 4* respectively.
Figure 4 is a view of a plate in position on its mould:
Figures 5 to 7 illustrate a plate partly provided with teeth.
. In order to stamp unsymmetrical and inturned objects of all kinds, without the
employment of a punch, according to the present invention, I employ a press A in
which is introduced shot a, or the like which wholly surround the object b to be
stamped and its matrix or mould c.
When the object to be stamped is wholly embedded in the shot, a stamp-
hammer d is inserted in the press and the shaping of the object embedded in the
shot with its mould is effected by hammering the said stamp d.
"In manufacturing plates by my invention, the metal is caused by the shot to take
a shape so as to fit exactly on, or into, the slightest elevations or depressions of
the mould or matrix because the force of the blows is transmitted throughout
through the medium of the shot.
The strength of the blows on the stamp-hammer, the force of which is trans
mitted by the shot to the object to be stamped, must be increased or diminished,
that is to say, regulated according to the shape and strength of the article to be
stamped.
My invention can also be advantageously applied to the repairing of plates pro-
vided with teeth which have got out of shape such for instance, as that shewn
in Figures 5 to 7. The repairing of such a plate according to my invention is
considerably cheaper and quicker than by the method as heretofore practised,
because the teeth need not be removed as has been necessary heretofore on account
of a punch being used in the operation.
As the shot or the like surround the teeth of the plate on all sides, and as the
said plate is supported on its mould or matrix, the force of the blows can only

page_text: take effect on those parts which are not of their original shape, that is to say, in
other words, only the plate itself is acted on, the teeth being unaffected as they are
supported by the shot surrounding them.
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 :-
1. The described improvements in stamping symmetrical, unsymmetrical and
inturned metal articles of all kinds, such improvements consisting in embedding
the article to be stamped and its mould in shot or the like in a suitable press,
the said shot or the like serving to transmit blows, communicated to it by a stamp-
haminer, to the article embedded in it so as to force it to take the shape of the
mould, substantially as described.
2. The apparatus for stamping metal articles of all kinds hereinbefore described
and illustrated in the accompanying drawing.
Dated the 2nd day of July 1897
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.