AN IMPROVED ROTATING DRUM FOR TOBACCO CUTTING MACHINES
Year: 1882

page_text: LETTERS PATENT to Thomas Cope of Liverpool in the County of Lancaster
Tobacco Manufacturer and Walter Brewer of the same place Engineer for
an invention of "AN IMPROVED ROTATING DRUM FOR TOBACCO CUTTING
MACHINES"
PROVISIONAL SPECIFICATION left by the said Thomas Cope and Walter
Brewer at the Office of the Commissioners of Patents on the 15th March
1882.
THOMAS COPE of Liverpool in the County of Lancaster, Tobacco Manufacturer
and WALTER BREWER of the same place, Engineer, "AN IMPROVED ROTATING
DRUM FOR TOBACCO CUTTING MACHINES
"
The main object of our invention is to provide a drum with a smooth yielding
and durable surface easily renewable and adapted to preserve the keen cutting
edge of the knife, to largely reduce noise in working, and to prevent chipping and
uneven cutting away.
In carrying our said invention into practice we construct or make the base or
body of the drum of metal or any sufficiently strong and rigid material or materials,
of the desired size and there is secured to or caused to adhere to the periphery of
the said drum a ring or covering of caoutchouc or other gum or elastic yielding
material.
In working the vibrating knife comes in contact with the elastic or yielding
covering but it does not cut into nor destroy the smooth surface

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Cope and Walter Brewer in the Great Seal Patent
Office on the 15th September 1882.
THOMAS COPE of Liverpool in the County of Lancaster, Tobacco Manufacturer
and WALTER BREWER of the same place, Engineer. "AN IMPROVED ROTATING
DRUM FOR TOBACCO CUTTING MACHINES
"
The main object of our invention is to provide a drum with a smooth yielding
and durable surface easily renewable and adapted to preserve the keen cutting edge
of the knife, to largely reduce noise in working, and to prevent chipping and
uneven cutting away.
In carrying our said invention into practice we construct or make the base or
body of the drum of metal or any sufficiently strong and rigid material or materials
of the desired size and there is secured to or caused to adhere to the periphery of
the said drum a ring or covering of caoutchouc or other gum or elastic yielding
material.
In working the vibrating knife comes in contact with the elastic or yielding
covering but it does not cut into nor destroy the smooth surface.
DESCRIPTION OF THE DRAWING.
8
The accompanying drawing is a view in transverse section of so much of
tobacco cutting machine as is necessary for illustration of a working modification
of our invention. a. framework, b table for uncut tobacco. c pressing rollers,
d knife, e driving gear. These parts may be variously arranged and form no part
of our invention taken by themselves. f drum. The said drum as here represented
consists of a cast iron cylinder g with closed ends fitting round the shaft h.
i covering or ring of caoutchouc or other gum surrounding and adhering to the
cast iron cylinder g. The caoutchouc or gum covering is secured to the cylinder in
any well known or convenient manner. When the machine is in operation
'the drum is caused to revolve slowly by means of ratchet or other usual feed
mechanism.
It will be obvious that the cylinder to be covered by caoutchouc or gum may
be cast in steel or other metal or a timber or other sufficiently rigid base may be
employed.
Having now described and illustrated our said invention in such manner that
others will be enabled to carry our improvements into effect we claim :-
The improved compound rotating druin substantially as herein described for and a
in combination with machines for cutting tobacco.
In Witness Whereof I the said Thomas Cope have hereunto set my hand
and seal this Twelfth day of September in the year of Our Lord, one
thousand eight hundred and eighty two.