Improvements in or relating to Apparatus for Outting Cardboard or the like.
Year: 1892

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Apparatus for Outting Cardboard
or the like.
A communication from EMIL SALTZKORN, Consul, and LUDWIG NICOLAI,
Manufacturer, both of Lobtauerstrasse 20, Dresden, Saxony, in the Empire
of Germany.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
Member of the Institution of Mechanical 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:
The object of this invention is to produce a machine for cutting cardboard or
the like, capable of performing a greater amount of work in a given time than
similar machines hitherto employed, while at the same time the cut produced by it
is much neater and smoother than has been obtainable up to the present time.
These results may be obtained by imparting motion either to the knife itself or to
the supporting plate or table, while the knife-holder is operated, so that a
"drawn
cut is produced. For this purpose, as the knife-holder is pressed down upon the
cardboard a suitably arranged lever causes the knife to slide to a certain extent
within the slots provided in the knife-holder, or the table is moved in guides or
ways, during the cutting operation, by being drawn in the opposite direction (to
the direction of the cut) by means of a suitable lever and link arrangement; or
sliding motion may be imparted both to the knife and table.
The invention will be best understood by reference to the accompanying drawings
in which
Fig. 1 is a side elevation with the kuife-holder in the depressed position.
Fig. 2 is a similar view with the knife-holder in the raised position.
Fig. 3 is a plan.
Fig. is a section of the knife-holder and
Fig. 5 a modification of the machine.
Upon a bed-plate or table A is arranged as usual a bearing B supporting a
pivot on which is adapted to swing the knife-holder E in the longitudinal slots
of which the knife M itself is guided, while it is at the saine time adapted to turn
on a pivot H through the medium of the link F, whenever the holder is operated.
A weight attached to the extended arm of the knife-holder serves to keep the parts
properly balanced.
As the knife-holder rises or sinks, the link F turning on the pivot H causes the
knife to slide within the slots of the knife-holder.
Figure 5 illustrates a modification which may be used in cases where it is not
desirable that the knife should be movable. In such cases therefore it will be
convenient to have a movable table instead, while the knife and knife-holder
remain stationary, which also permits of a drawn cut being obtained as in the
first case.
In this arrangement the table or bed-plate T rests loosely upon the frame-work
which also carries the stationary knife-holder E. With the knife-holder is
connected an arm F pivotted at b a pivotted link z is arranged between this arm
and the table T. It will be understood that by raising the knife the arm F is
caused, through the medium of the link z to move the table towards the left
i.e., away from the knife. When however the knife is lowered it draws the table
towards the knife so that the cardboard or the like resting thereon receives the
desired "drawn cut.
"

page_text: Having now particularly described and ascertained the nature of the said inven-
tion as communicated to me by my foreign correspondents, and in what manner the
same is to be performed, I declare that what I claim is,―
A machine for cutting cardboard or the like the object of which is to produce
"drawn cuts by the arrangement of
"
1. A pivotted knife-holder such as E and a knife such as M adapted to. slide
upon the said holder under the action of a link or radius arm such as F' substantially
as described and illustrated in the accompanying drawings..
2. The combination with the knife-holder E of an arm adapted, to reciprocate
the bed-plate or table T on which the material to be cut is placed as the knife is
alternately raised and lowered substantially as described and illustrated, in the
accompanying drawings.
Dated this Ninth day of August 1892.
ALFRED J. BOULT,
Chartered Patent Agent.