Improvements in Relief and Colour Stamping Presses.
Year: 1892

page_text: Date of Application, 26th Oct.. 1892
Complete Specification Left, 22nd July, 1593-Accepted, 26th Aug., 1893
PROVISIONAL SPECIFICATION.
Improvements in Relief and Colour Stamping Presses.
I, ROBERT BROWN, of No. 45 Webber Row, Waterloo Road, in the County of
Surrey, Engineer, do hereby declare the nature of this invention to be as
follows:-
a
This invention relates to a construction and arrangement of a screw press for,
stamping paper or like material in relief and colour, the arrangement being such
that the press, instead of being worked by hand, is worked mechanically from
convenient motor. For this purpose, on the screw spindle above its horizontal
flywheel I fix a flanged drum to which I attach the one end of a band of leather
or other suitable somewhat clastic material. This band, after passing partly round
the drum is turned partly round and led over a guide pulley to a crank pin, to an
eye on which its other end is attached. The crank being on a continuously
revolving shaft; during part of each revolution tightens and draws the band, and
during the rest of the revolution gives it slack. The pull of the band com-
municated to the drum and fly-wheel causes the screw to make a stamping stroke,
and, when the band is slack, the stamp is raised by springs. The band, instead of
being attached to the drum, may be passed partly round the drum and have its ends
attached to two opposite cranks.
On the same shaft with the crank is a cam which acts on a lever causing it to
oscillate; this lever is connected to suitable gear which acting on a rack moves to
and fro a slide carrying an inking roller.
Thus for each stamping operation, the roller is made to pass under an inking web
from which it receives ink or pigment, and then under the stamp which it serves
with ink or colour, retreating before the stamp descends.
Dated this 26th day of October 1892.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Relief and Colour Stamping Presses.
1, ROBERT BROWN, of No. 45 Webber Row, Waterloo Road, in the County of
Surrey, Engineer, 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 construction and arrangement of a screw press for
stamping paper or like material in relief and colour, the press instead of being
worked by hand, being worked mechanically from a convenient motor. For this
purpose I construct the press as shewn in front view by Fig. 1 and in side view
by Fig. 2 of the accompanying drawings. On the screw spindle S above its
horizontal flywheel W 1 fix a flanged drum D to which I attach the one end of a
band B of leather or other suitable somewhat elastic material. This band, after
passing partly round the drum is turned partly round and led over a guide pulley G
to a crank pin C to an eye on which its other end is attached. The crank, being on
a continuously revolving shaft A, during part of each revolution tightens and draws
the band B and during the rest of the revolution gives it slack. The pull of the
band communicated to the drum and flywheel causes the screw to make a stamping
stroke, and, when the band is slack, the stamp may be raised by springs. The
band, instead of being merely attached to the drum, may be extended beyond the
TU077

page_text: attachment and passed partly round the drum as shewn by B' and have its other
end attached to a crank opposite to C, in which case the springs for effecting the
return stroke may be dispensed with.
On, the same shaft with the crank C is a cam K which acts on a roller on a
lever I causing it to oscillate; this lever acting through suitable rack and pinion
gear M moves to and fro a slide-N carrying the inking roller and die.
Thus for each stamping operation effected by one revolution of the crank C, the
die is inked, is passed under the punch, and withdrawn.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
In a stamping press having its screw spindle reciprocated by a drum on it
connected by a belt to a continuously revolving shaft, a cam on the said shaft and
a lever with rack and pinion gear giving reciprocation to the slide carrying the
inking roller and die, substantially as described.
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1000.
ABEL & IMRAY,
Agents for the Applicant..
ABEL & IMRAY,
Agents for the Applicant..