Improvements in or connected with Paper-cutting Machines.
Year: 1895

page_text: Date of Application, 24th Dec., 1895-Accepted, 1st Feb., 1896
CUMPLEIE CHCIFICATION.
Improvements in or connected with Paper-cutting Machines.
I, THOMAS BOULTON KENDELL, of Norfolk Iron Works, Norfolk Place,
Shoreditch, in the County of London, 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 improvements in or connected with paper-cutting
machines of the kind known as guillotine paper-cutting machines and has for its
object an improvement in the stick on which the knife blade comes to rest after
cutting through the paper.
In such machines as hitherto constructed the stick is formed of a rectangular
strip of wood or soft metal inserted into a correspondingly shaped recess in the bed
of the machine. Each time the knife blade descends it cuts through the paper-
and strikes the wood or metal strip or stick in the same place, whereby only a small
central portion of the exposed face of the stick is used up. When one face is.
used the stick is turned so as to expose another face. It is thus obvious that
only a very small part of the surface of the four faces of the stick is cut or
used up.
Now the object of my invention is to provide a stick the whole surface of which
can be exposed to the action of the knife blade, and to this end I make the stick
of such a shape that it can be iurned as required, for instance, of a cylindrical or
approximately cylindrical shape in transverse section. To fix the improved stick
in position in the recess in the bed of the machine I provide a clamp which fits into.
the said recess.
To enable my invention to be fully understood I will describe it by reference to
the accompanying drawing, in which :-
Figure 1 is a plan of my improved stick and clamp:
Figure 2 is an end view of the same.
a is the stick which is circular in cross section and of any suitable material..
b, bare the two parts of the clamp, of such a shape that they enclose and grip-
the stick but leave a free portion c at the top on which the knife blade descends.
The clamp b, b is made to form with the enclosed stick a rectangular strip adapted
to fit into the recess in the bed of a machine of ordinary construction.
When the exposed surface of the stick has become used up, the clamp and stick
are removed from the recess in the bed of the machine, the stick is turned slightly
in the clamp so as to expose an uncut surface to the blows of the knife blade and
the clamp and stick are then replaced in the recess. It will therefore be obvious.
that with this form of stick the whole of the surface of the same can be exposed to.
the action of the descending knife blade.
I sometimes cause the end of the stick to project from the bed of the machine so
that it can be rotated by a spanner or other suitable means, thereby avoiding
the necessity of removing the clamp and stick from the recess in the bed for the
purpose of exposing a fresh portion of the surface.
In machines so constructed as to allow of the insertion of the stick from the side
of the bed, it will be obvious that the said stick can be employed without the clamp,.
the recess in the bed being in this case made circular so as to correspond with the
shape of the stick and so as to expose a part of the upper surface of the latter as in.
the case in which the clamp is used.

page_text: 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. In guillotine paper-cutting machines a stick so arranged that the whole of
its surface can be exposed to the action of the knife blade substantially as, and for
the purpose, described.
2. In guillotine paper-cutting machines the combination with a stick of the
kind described of a separate clamping device substantially as, and for the purpose,
described.
3. The manufacture and use of the improved stick and clamp, for use with
guillotine paper-cutting machines, substantially as herein before described and
illustrated in the accompanying drawing.
Dated this 24th day of December 1895.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.