Improvements in Apparatus for Bevelling or otherwise Cutting the Edges of Cardboard or the like.
Year: 1892

page_text: D te of Application, 23rd Nov., 1892-Accepted, 31s! Dec., 1892
COMPLETE SPECIFICATION.
Improvements in Apparatus for Bevelling or otherwise Cutting the
Edges of Cardboard or the like.
A communication from EMIL SALTZKORN, Consul, and LUDWIG NICOLAI,
Manufacturer, both of 21, Löbtauerstrasse, Dresden, 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, Chartered Patent Agent,
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 provide a tool or device for cutting cardboard
or other similar material obliquely, so as to provide it with bevel edges as is some-
times required in the book-binding and similar trades. The angle of the incline
or bevel may of course vary according to circumstances, the shape of the piece of
cardboard in section varying accordingly, and the tool hereinafter described may
be adjusted so as to suit such variations of shape or angle.
In the accompanying drawings,
Fig. 1 is a side elevation, Fig. 2 a front view, and Fig. 3 a plan of the improved
cutting-tool.
Upon a presser bar or rail a, which is partly broken away in the drawing, and
which is intended to come down upon and hold the cardboard c to be cut, placed
upon the table b, there is arranged in dove-tailed guides d a sliding or adjustable
plate e, provided with a handle or knob g for convenience of adjustment. This
plate e is at each end provided with segment-shaped slotted guides in which the
cutter-head or knife-holder being a plate provided with angular projections h, is
adjustably retained by means of set-screws i.
Upon this cutter-head or holder & the cutter or knife is secured in a vertically
adjustable position by means of set-screws m. The knife or cutter somewhat
resembles the share of a plough in shape while its cutting edge may present any
suitable bevel or shape in section, as exemplified by Figure 4, it, however will in
all cases form an obtuse angle to the main body of the knife. To strengthen the
finely sharpened cutting-edge, so that it has a sufficient rigidness to resist occasional
strains, it is provided with an upturned flange, as shown at 12.
In use, after the paste-board c has been placed upon the table, so that the edges
of the sheet to be cut and of the table are flush (Fig. 1), the knife or cutter / with
its holder k is so adjusted in the segment shaped guides f as to secure a cut at the
desired angle. The whole device is then by means of the handle moved along
the presser-bar a from one end to the other of the sheet of cardboard to be cut the
depth of the cut being properly adjusted and due pressure being applied to the
tool in sliding it across the cardboard, off which a thin strip, not unlike a planing
chip is cut.
The shape of the knife or cutter and the length of the segment shaped guides
may be so adjusted that the angle at which the cardboard is thus cut or trimmed
may vary very extensively, say from 18 to 85°.
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,-
'
1. A tool for cutting or trimming the edges of cardboard or the like at any desired
angle of inclination consisting of a knife or cutter such as mounted upon a

page_text: cutter-head or holder such as attached to a plate such as e which is adjustable in
segmental guides substantially as described and illustrated in the accompanying
drawings.
2. The combination and arrangement of parts constituting the complete tool for
cutting cardboard or the like substantially as described and illustrated in the
accompanying drawings.
Dated this 23rd day of November 1892.
W. P. THOMPSON & BOULT,
Agents for the Applicant.