Improvements in and relating to Machines for Stamping, Marking, Indenting, Necking, and similarly Operating upon Cylindrical Cases.
Year: 1896

page_text: Date of Application, 11th Jan., 1896.
Complete Specification Left, 10th Oct:, 1896-Accepted, 21st Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in and relating to Machines for Stamping, Marking,
Indenting, Necking, and similarly Operating upon Cylindrical
Cases.
We, WALTER BERNARD CHALLEN, and TAYLOR AND CHALLEN LIMITED,
of Derwent Foundry, Constitution Hill in the City of Birmingham, Engineers, do
hereby declare the nature of this invention to be as follows:-
This invention relates to the manner in which we construct and arrange machines
whereby the indenting and necking of cylindrical metal cases and other like.
operations are more readily and conveniently effected than by the machines at
present in general use.
In carrying our invention into effect we mount transversely across a suitable
cast iron or other bed or framing, a crank shaft which is driven or revolved by
means of belting or in any other convenient manner. In a longitudinal direction.
upon the bed or framing we mount a ram or sliding bar which is reciprocated on
the revolution of the crank shaft. At each end of the ram we secure a punch or
punches, and at each end of the bed or framing we fix a suitable die or dies in line
with the punches.
.
We preferably provide adjustable holders for the punches or like tools with nuts
for securing them to the ram, a slot or aperture being formed near to each end of.
the ram to permit of a nut being screwed on to the inner end of each holder after
it is placed in position. By thus arranging the tools at each end of the ram and
of the bed or framing, we are enabled to effect the necking or other required
operation on each stroke of the machine or twice in every revolution.
When employing our improved machine for indenting the solid end of a metal.
case, and for stamping or marking the same, we use punches having their ends of a.
form to give the required indenture, and we also engrave upon the end of the
punches the letters or devices to be stamped or marked upon the cases.
The metal blanks or cases to be indented are placed into vertical troughs or
hoppers one of which is fixed at each end of the machine. Beneath the lower.
end of each hopper we mount a sliding plate or feeder which is reciprocated at
the proper times by a rod operated by cams fixed to or formed upon the crank
shaft. By means of these reciprocating feeders the cases are conveyed from the,
hoppers and placed in position to be indented and, marked by the tools attached
to ram.
After the indenting and marking operations, the cases are forced from the dies.
by means of extractors consisting of rods secured at one end to suitable holders,
the opposite or free end projecting into the die blocks attached to the bed or
framing. On the withdrawal of the punch at either end of the ram the extractor.
is pressed forward, against the resistance of a spring, by means of a projecting
arm from the ram. The case being thus forced out from the dic, it is discharged
clear of the mouth of the same by means of a knocking-off piece or discharge lever
pivotted upon the bed or framing. The lever is operated by means of a spring.
when a notch or groove formed upon the projecting arm hereinbefore described is
brought into the required position to permit of its movement.
When employing our improved machine for necking the open end of metal cases
or blanks or for other like purposes, we make the ends of the punches suitably, for

page_text: fitting upon the closed ends of the cases, and the dies of a bottle neck or other
like shape to which the cases are to be formed. The extractors are also shaped to
correspond with the interior of the completed case.
Dated this 10th day of January 1896.
MARKS & CLERK,
18 Southampton Buildings, London, W.C., and
13 Temple Street, Birmingham, Agents for the Applicants.
Improvements in and relating to Machines for Stamping, Marking,
Indenting, Necking, and similarly Operating upon Cylindrical
Cases.
We, WALTER BERNARD CHALLEN; and TAYLOR AND CHALLEN LIMITED,
of Derwent Foundry, Constitution Hill, in the City of Birmingham, Engineers, 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 the manner in which we construct and arrange
machines whereby the indenting and necking of cylindrical metal cases and other
like operations are more readily and conveniently effected than by the machines at
present in general use.
In the accompanying sheet of explanatory drawings to be hereinafter referred
to ;-
Figure 1 is a plan and Figure 2 a side elevation of a machine constructed in
accordance with our invention.
Figures 3 and 4 are sectional views to a larger scale, representing the indenting
and necking tools respectively.
The same reference letters in the different views indicate the same parts.
In carrying our invention into effect we mount transversely across a suitable
cast iron or other bed or framing, a crank shaft A, which is driven or revolved by
means of belting or in any other convenient manner. In a longitudinal direction
upon the bed or framing we mount a ram or sliding bar B which is reciprocated on
the revolution of the crank shaft A. At each end of the ram B we secure a punch
or punches and at each end of the bed or framing we fix a suitable die or dies D in
line with the punches C.
We preferably provide adjustable holders for the punches or like tools with nuts
for securing them to the ram, a slot or aperture B' being formed near to each
end of the ram to permit of a nut being screwed on to the inner end of each
holder after it is placed in position. By thus arranging the tools at each end of
the ram and of the bed or framing, we are enabled to effect the necking or other
required operation on each stroke of the machine or twice in every revolution.
When employing our improved machine for indenting the solid end of a metal
case E (Figure 3) and for stamping or marking the same, we use punches having.
their ends of a form to give the required indenture, and we also engrave upon
the end of the punches the letters or devices to be stamped or marked upon the
cases.
The metal blanks or cases to be indented are placed into troughs or hoppers F,
preferably arranged in an inclined position, one of which is fixed at each end of
the machine. Beneath the lower end of each hopper we mount a sliding plate or
feeder G such feeders being reciprocated at the proper times by the rods H
operated by cams J fixed to or formed upon the crank shaft A. By means of
these reciprocating feeders G the cases are conveyed from the hoppers F and

page_text: placed in position to be indented and marked by the tools attached to the ram B.
Such tools for one end of the ram are shown at Figure 3 and comprise the punch C
having its extremity formed to give the required shape to the solid end of the
case E, the die D formed to give the required external configuration to the case-
end, and the marking punch K having the required letters or device engraved
upon the extremity adjacent to the case E.
After the indenting and marking operations, the cases are forced from the dies.
by means of extractors consisting of rods secured at one end to suitable holders.
The arrangement of the extractor for one end of the machine is shown at Figure 3,
and comprises the rod L and spring M carried in the holder N. On the withdrawal
of the punch C at either end of the ram the extractor L is pressed forward, against.
the resistance of the spring M by means of a projecting arm O from the ram and
the case is thus forced out from the die.
When employing our improved machine for necking the open end of metal cases or
blanks or for other like purposes, we arrange tools as shown at Figure 4, comprising
the punch C suitable for fitting upon the closed end of the case E, and the die Di
of a bottle neck or other like shape to which the cases are to be formed. The
extractor punch K is shaped to correspond with the opposite end of the case.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we-
claim is ;-
1. A machine for indenting, marking, and necking cylindrical metal cases and
for other like operations, constructed and arranged substantially as described and
as illustrated.
2. In machines for indenting, marking, and necking cylindrical metal cases and
for other like operations, the combination of a reciprocating ram B having
punches or tools at each end, with the dies or tools mounted on the machine.
framing and the feeders and extractors, substantially as described and as.
illustrated.
3. The improved construction and arrangement of indenting and marking tools.
substantially as described and as illustrated at Figure 3 of the drawings.
4. The improved construction and arrangement of necking tools substantially as.
described and as illustrated at Figure 4 of the drawings.
Dated this 9th day of October 1896.
MARKS & CLERK,
18 Southampton Buildings, London, W.C., and
13 Temple Street, Birmingham, Agents for the Applicants..