Improvements in or relating to the Manufacture of Pasteboard and similar Boxes, and Apparatus employed therefor.
Year: 1889

page_text: Date of Application, 26th Nov., 1889
Complete Specification Left, 7th Aug., 1890-Accepted, 18th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Manufacture of Pasteboard
and similar Boxes, and Apparatus employed therefor.
A communication from E. SALTZKORN and LUDWIG J. F. NICOLAI, of Dresden, in the
Empire of Germany.
1. ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex, M.I.M.E.,
do hereby declare the nature of this invention to be as follows:-
This invention relates to apparatus for bevelling or mitreing the edges of pieces of
pasteboard, cardboard or the like in order to enable boxes and the like to be made
therefrom, and effect the even combination of their slanting edges to form the
corners.
In carrying this invention into practice two knives or cutters rectangularly placed
to each other are employed and both are so arranged that they move at an angle of
approximately 45°. The table of the machine is capable of being raised and lowered
by means of a suitable treadle or lever arrangement the legs for this purpose being
formed telescopic. Over this table are carried two stationary cylinders each having
on its base an inclined hollow and guide of preferably square section. In each of the
cylinders is a piston to which is connected a piston rod attached to a lever which is
pivoted to a standard so that as one piston is moved downwards the other will be
moved upwards. Each of the pistons is connected by a second piston rod to a block
or plunger working in one of the inclined guides, the said second piston rod being
connected to the plunger by means of a suitable sliding joint. To each of the sliding
blocks or plungers is fixed a knife or cutter the edge of which is slightly curved or
inclined. While the operating lever moves the pistons, the knives ascend and descend
alternately and while doing so cross each other and cut out the corner in a complete
and even manner. When the table is lowered the pasteboard or like material to be
operated upon is pushed in and fits against or between guides secured on the table
after which the table is raised by means of the treadle and the paste-board is thereby
fixed in position.
The path of the operating lever can be regulated by bolts or pins adjustable in a
curved rail or quadrant. When the said lever is operated one knife will first cut one
side or edge and then the other knife another side or edge. Parts of the hollow guides
are detachable so that the knives or cutters can be removed and the sliding blocks or
plungers can also be detached from the piston rods connecting them to the pistons.
Dated this 26th day of November 1889.
W. P. THOMPSON & BOULT,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to the Manufacture of Pasteboard
and similar Boxes, and Apparatus employed therefor.
A communication from EMIL SALTZKORN, Consul, and LUDWIG J. F. NICOLAI,
Manufacturer, both of Dresden, in the Empire of Germany.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex, M.I.M.E.,
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 apparatus for bevelling or mitreing the edges of pieces of
paste-board card-board or the like in order to enable boxes and the like to be made

page_text: therefrom and effect the even combination of their slanting edges to form the corners.
In carrying this invention into practice two knives or cutters rectangularly placed to
each other are employed and both are so arranged that they move at an angle of
approximately 45°.*
In the accompanying drawings
Fig. 1 represents a side view partly in vertical section and
Fig. 2 a plan of the apparatus.
The table a of the machine is capable of being raised and lowered by means of a
suitable treadle or lever arrangement 6 the legs e for this purpose being formed
telescopic. Over the table a are carried two stationary cylinders d each having on its
base an inclined hollow guide e of preferably square section. In each of the cylinders d
is a piston k to which is connected a piston rod h attached to a lever g which is pivoted
to a standard f so that as one piston k is moved downwards the other will be moved
upwards. Each of the pistons k is connected by a second piston rod to a block or
plunger m working in one of the inclined guides e, the said second piston rod / being
connected to the plunger m by means of a suitable sliding joint such as the dovetail i
which works in the correspondingly shaped groove n in the block m. To each of the
sliding blocks or plungers m is fixed a knife or cutter p the edge o of which is
slightly curved or inclined. While the operating lever g moves the pistons the
knives ascend and descend alternately and while doing so cross each other and cut
out the corner in a complete and even manner. When the table is lowered the paste
board or like material to be operated upon is pushed in and fits against or between
guides secured on the table a after which the table is raised by means of the
treadle and the pasteboard is thereby fixed in position.
The path of the operating lever g can be regulated by bolts or pins r adjustable in
the curved rail or quadrant s. When the said lever g is operated one knife
will first cut one side or edge and then the other knife another side or edge.
Parts of the hollow guides e are detachable so that the knives or cutters p can be
removed and the sliding blocks or plungers m can also be detached from the piston
rods connecting them to the pistons k.
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 bevelling or mitreing apparatus characterized by the arrangement of two
inclined knives or cutters such as p alternately rising and sinking at an angle of
about 45° to each other they being for this purpose fixed each to a piston or
plunger such as m connected with cylinder attachments or guides such as e in
which the plungers m are caused to reciprocate up and down by the pistons or
plungers movable within the cylinders d and through the medium of a lever
such as g substantially as described and illustrated in the accompanying drawings.
2. The combination and arrangement of parts constituting the complete apparatus
substantially as herein described and illustrated in the accompanying drawings.
Dated this 7th day of August 1890
W. P. THOMPSON & BOULT,
Agents for the Applicant.