An Improved Press for Stamping Metal Seals, Medals, and the like.
Year: 1886

page_text: Date of Application, 23rd July, 1886.
Complete Left, 19th Apr., 1887.
Complete Accepted, 3rd June, 1887.
and HEINRICH ZWANZIGER, all of Vienna, Austria, atanuracturers.]
An Improved Press for Stamping Metal Seals, Medals, and the like.
I, HERBERT JOHN HADDAN of 67 Strand, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has for its object to construct an improved press for stamping seals
of lead or other metal used in securing cords on parcels etc. or for stamping medals,
tokens and the like. The press is of simple and durable construction. The dies are
guided perpendicular and no springs are used either for ejecting the stamped seal or
for actuating any of the parts of the press. The press is formed as follows:-
A bar or lever provided at one end with a handle, carries at its other extremity a
casing arranged substantially at right angles to the axis of the bar. This casing is
preferably of cylindrical form and contains, a sliding block provided at one extremity
with a transverse pin projecting laterally through slots in the opposite sides of the
casing, so that by connection with this pin the block may be moved back and forth
within the casing.
This block is hollowed out cylindrically and serves as a sleeve for a rod the front
end of which forms one of the dies-this rod is adapted to slide longitudinally therein
within certain limits, determined by a pin fixed in the block and engaging in a slot in
the side of the rod. Another pin passing through slots in the sliding block and in
the die-rod is fixed firmly at each end in the outer casing and serves to disengage the
stamped seal in the manner hereinafter described. In the end of the casing opposite
to the above mentioned die and parallel thereto is arranged the corresponding die for
the reverse of the seal.
Outside, at this end of the casing is pivoted at its extremity a second hand lever
extending in a direction parallel to the first, and adapted to swing approximately to
right angles therefrom. This lever_carries near its pivot a shoulder projecting in a
direction away from the casing. To this shoulder a pair of connecting links are

page_text: pivoted one each side by a pin passing through an eye in said shoulder. These links
are connected at their further extremities to the opposite ends of the bolt at the outer
end of the sliding block.
When the hand levers are separated at right angles, the said links cause the block
to slide to its lowest position in the casing. When the levers are approached, the
links cause the block to travel upward in the casing.
The action of the machine is as follows:
The levers are held apart and a blank disc of lead with the ends of the cord passed
through it, is introduced through a slit in the casing between the two dies where
it is centred by resting on a cylindrically hollowed portion of the sliding block
which projects below the die. The levers are now brought together, and the
sliding block drawn by the connecting links ascends in the casing and covers the
slot (with the exception of two recesses through which the cords pass) and holds in
the disc during this movement the lower die on which the disc rests, commences
to move upward with the sliding block, until the disc is pressed lightly between
the two dies, the lower die then gives to the motion of the sliding block until it
reaches its lowest relative position to the said block, the pressure is then exerted on
the dies and the seal stamped. The handles are again separated and the sliding block
moves downward in the casing and carries with it the die until the cross pin fixed in
the casing arrives at the upper end of the slot in the rod of the die, when the latter is
arrested and the block travels down without the same and leaves the seal free to be
taken out of the slot.
The centreing piece for the seal may be arranged either on the casing, sliding block,
or die as found most convenient.
If preferred a screw spindle may be arranged in place of the hand lever for lifting
and depressing the sliding block.
As will be seen from the description the movable die approaches most rapidly at
the commencement of the stroke, its velocity continually decreasing as it moves nearer
the seal, its power howover increasing.
Dated this 23rd day of July 1886.
HERBERT & Co.,
67, Strand,
Agents.

page_text: COMPLETE SPECIFICATION.
An Improved Press for Stamping Metal Seals, Medals, and the like.
I, HERBERT JOHN HADDAN, of 67, Strand, London, in the County of Middlesex,
Civil Engineer, do hereby declare the nature of this invention, a communication to
me from abroad by August Rast, Johann Gasser, Michael Gasser and Heinrich
Zwanziger, all of Vienna, Austria, Manufacturers, 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 press for stamping metal seals &c., used in sccuring cords
or parcels and for other purposes, the said press having the characteristic peculiarity
that the movable die is guided in a straight line vertically upon the corresponding
face or die and that no springs are used, either for ejecting the pressed seal or for
stopping or actuating any part of the press.
In the annexed drawings Fig. 1 represents a side view of the press, the handle-
lever partly broken, Fig. 2 a plan. Fig. 3 represents a longitudinal section of the
press when opened, Fig. 4 when closed. Fig. 5 is a front view (closed position) and
Fig. 6 the same in an open position. Figs. 7, 8 and 9 represent the sliding block in
different views.
Figs. 10 and 11 represent the lower movable die and Fig. 12 represents the upper
stationary die.
Similar letters of reference indicate corresponding parts.
The one lever-handle of the press has on one end a casing a to which the second
lever handle is movably connected by means of a bolt or trunnion f. On both
sides of the casing are arranged links c, which are movably connected on the one
side by means of bolts d, to the sliding-block g carring the movable die h and
arranged in the casing a) and on the other side by means of the bolt e to the
lever as shown. The block g sliding with the or studs oo in slots of the
casing (which lugs prevent it from turning) is centrally perforated and carries
the movable die h opposite to which the stationary die i is arranged in the casing. The
operation is as follows: Having placed the object to be pressed (seal, medal &c.) into
the opening of the casing, at 9, between the dies h and i, (the centering of the
seal &c. being effected by the rest-support m, which may be applied either on the
sliding-block g as shown in the drawing, or on the stationary die :) first the sliding-
block g is moved from the position shown in Fig. 3, into that of Fig. 4 by means of
the lever handle b and links cc, so that the upper cylindrical part of the sliding-block
embraces the object to be pressed (seal medal etc). When the sliding-piece q has
moved so far that its inner shoulder arrives against the enlarged part of the die h, the
latter is carried along during the continued motion and pressed into the seal &c.
By the arrangement of the links cc laterally on the casing a and in the longitudinal
direction of the latter, the advantage is attained, that the links act almost in the
direction of motion of the sliding block g. On the other hand as the connecting line
of the centres of e and f is nearly horizontal the point d (being rigidly connected

page_text: with e) moves faster at the beginning of stroke than afterwards; the more the point e
approaches the position shown in Fig. 5 the more the upward motion is retarded and
the power correspondingly increased.
This is absolutely necessary, as the object to be pressed presents an increasing
.resistance. After pressing that is to say on the retrograde movement of the lever b
the sliding-piece together with the die and the pressed object are moved apart.
When the key or bolt k (which is secured on both the ends in the casing a and
extends through the slots n of the sliding block g and die h) arrives against the upper
end of the slot of the die h, the continued movement of the latter is stopped.
The sliding-piece g, the slot n of which is longer than that of the die / continues to
fall so that the die h appears to ascend and pushes out the finished seal.
pin of the sliding piece 7, guided in a slot p of the die h limits the motion of the
latter in regard to the sliding-piece g, so that the former can never project over the
upper edge of the latter.
A screw or
The two recesses g¹ in the upper edge of the sliding block (Fig. 9) are arranged for
the passage of the threads or cords on which the seal is attached.
Having now particularly described and ascertained the nature of said invention,
and in what manner the same is to be performed, I declare that what I claim is :-
1. In a press for stamping metal seals and the like the combination of two handle
levers, with a casing a, sliding-block g, movable dio h, provided with slots n and P,
stationary diei, bolts d, e and fand links c, key k and screw 1, all substantially as set
forth for the purpose specified.
2. In a press for stamping metal seals and the like the combination of the sliding
block g, movable die h, provided with slots n and p key k and screw 7, substantially as
described, for the purpose specified.
3. In a press for stamping metal seals and the like a rest-support m for centering
the seal.
Dated this 19th day of April 1887.