Improvements in the Manufacture of Cardboard and other Boxes, and Apparatus therefor.
Year: 1894

page_text: Date of Application, 1st Mar., 1894
Complete Specification Left, 29th Nv., 1894-Accepted, 5th Jan., 1895
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Cardboard and other Boxes,
and Apparatus therefor.
A communication from CARL DAVID & SON, of Lajos-uteza 4, Buda-Pesth, in the
Empire of Austro-Hungary.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
Chartered Patent Agent, do hereby declare the nature of this invention to be as
follows:
Boxes and caskets made of cardboard and the like have hitherto been exclusively
constructed in the following manner;-i.e. for forming and fixing the cover or lid
to the body or box properly so-called (that is to say for the formation of the neck
of the box etc.) the latter is lined internally at the side, all round, with a special
fillet or strip secured by means of paste, glue or other adhesive material. Further
it has been customary to form the joints, at least where sheet-metal clamps or
corner-plates have not been used, by means of a special angle-piece or strip stuck
on outside the two side walls at the joint.
By means of the present invention the usual methods of which mention has just
been made are very materially simplified and thereby consequently the prime cost
of the articles reduced; inasmuch as by mechanical means employed in the treat-
ment of the material the guide-strips i.e. the neck of the box etc., as well as the
overlapping corners with the side walls adjacent, are formed in one piece.
In the former case the use of adhesive material is hereby entirely done away
with; in the latter case, it is materially circumscribed, and the construction
facilitated, while in both cases, the box acquires a more pleasing appearance. The
plain scarf or halving is made under this new process mechanically by paring away
the wall of the box &c. by means of a suitable tool.
For the carrying out of this process in so far as that is dependent on the
mechanical treatment of the material new apparatus is employed which will
hereinafter be described.
These devices comprise the combination of a disc-shaped blade or scoring
knife attached to a pressing roller, with a paring knife formed like a plane, the
combined action of which may be further supplemented by a stripper.
The several parts above named are compactly mounted on a common support
arranged to slide to and fro horizontally in a dovetailed slideway in a cross-beam
or in any other suitable manner, according to requirement and are also adjustable
vertically by means of a screw working in a slot in the support in the manner
customarily adopted for similar tools for the working of cardboard. The lever-
shaped paring knife can also for its more effective use be made adjustable in the
direction of its axial line by suitable means as by a binding screw and further also
in a vertical direction by another screw in order that it may be specially set to the
gauge, i.e. to the required depth of penetration into the material to be pared away,
in relation to the scoring knife.
Similarly the stripper is provided with means of adjustment conveniently by
screws passing through diagonal guide-slots.
The material to be wrought is supplied to the apparatus by means of a table and
feed-roller, between say angle-iron guide-bars. The pressing roller securely holds

page_text: the material while the paring takes place, and the scoring knife limits by its
simultaneous incision, the breadth of the scales or parings; these latter by reason
of the oblique position of the paring knife in relation to the surface of the material
to be pared are continuously cut away in say wedge-shaped slices which pass away
over the knife and under the stripper.
The principal office of the stripper is to prevent the material under treatment
from buckling up so as to cause defective work in the preliminary cutting of the
scarf.
By a suitable adaptation or adjustment of the paring-knife or its cutting edge
the slice may be pared off to any form so that the remaining strip may have a
tapering, conical or sharply pointed surface as may be required according to
circumstances for the formation of the corners or joints. In all other respects the
working would be unchanged.
The construction of the apparatus is capable of being modified without departing
from the spirit of the invention the essential features of which are the pressing
roller and scoring-knife, the paring-knife, and the stripper.
Dated this 1st day of March 1894.
W. P. THOMPSON & BOULT,
Agents for the Applicant.
improvements in the manufacture of Cardboard and other Boxes,
and Apparatus therefor.
A communication from CARI. DAVID & SON, of Lajos-utcza 4, Buda-Pesth, in the
Empire of Austro-Hungary.
I ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
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 :-
Boxes and caskets made of cardboard and the like have hitherto been exclusively
constructed in the following manner; i.e. for forming the cover or lid a (see Fig. I of
the accompanying drawings) and fixing it to the body or box b properly so-called
(that is to say for the formation of the neck of the box, etc.) the latter (b) is lined
internally at the side, all round, with a special fillet or strip c, secured by means of
paste, glue, or other adhesive material. Further it has been customary to form the
joints, at least where sheet-metal clamps or corner-plates have not been used, by
means of a special angle-piece or strip d, stuck on outside the two side walls, at the
joint, as shown in Fig. 2.
By means of the present invention the usual methods of which mention has just
been made are very materially simplified and thereby consequently the prime cost
of the articles reduced; inasmuch as, by mechanical means employed in the treat-
ment of the material, the guide-strips c, i.e. the neck of the box, etc., as well as the
overlapping corners d, with the side walls adjacent, are formed in one piece as
shown by similar letters in Figs. 3 and 4; the figures of the drawings are given
merely by way of example and not as representations of precise forms to which the
invention is confined.
In the former case, the use of adhesive material is hereby entirely done away
with; in the latter case, it is materially circumscribed, and the construction
facilitated; while in both cases, the box acquires a more pleasing appearance.
The plain scarf or halving e (shown by the contrary hatching in Fig. 5) is made,
under this new process, mechanically by paring away the wall of the box, &c., by
means of a suitable tool.

page_text: For the carrying out of this process, in so far as that is dependent on the
mechanical treatment of the material, new apparatus is employed, which will
bereinafter be described.
These devices comprise the combination of a disc shaped blade or scoring knife
attached to a pressing roller f, with a paring knife h formed like a plane, the
combined action of which may be further supplemented by a stripper i. The
apparatus and its mode of operation are shown in Figs. 6 and 7, which represent
respectively a side and a front elevation thereof.
The several parts above named are compactly mounted on a common support k,
arranged to slide to and fro horizontally in a dovetailed slideway / in a cross-beam,
or in any other suitable manner, according to requirements, and are also adjustable
vertically by means of a screw m, working in a slot in the support k, in the manner
customarily adopted for similar tools for the working of cardboard.
The paring-knife h can also, for its more effective use, be made adjustable in the
direction of its axial line by suitable means as by a binding screw n, and further.
also in a vertical direction by another screw device o (Figs. 6 and 7), in order that'
it may be specially set to the gauge, i.e. to the required depth of penetration into
the material to be pared away, in relation to the scoring-knife g.
Similarly the stripper i is provided with means of adjustment conveniently by
screws passing through the diagonal guide-slots s.
The material to be wrought is supplied to the apparatus by means of a table q
and feed-roller p, between say angle-iron guide-bars as shown in Fig. 7. The
pressing roller securely holds the material, while the paring takes place; and the
scoring-knife g limits, by its simultaneous incision, the breadth of the scales or
parings; these latter, by reason of the oblique position of the paring-knife in
relation to the surface of the material to be pared, are continuously cut away in say
wedge shaped slices which pass away over the knife h and under the stripper i as
shown by the arrow in Fig. 6.
The principal office of the stripper i is to prevent the material under treatment
from buckling or rising so as to cause defective work in the preliminary cutting of
the scarf.
By a suitable adaptation or adjustment of the paring-knife or its cutting edge the
slice c may be pared off to any form, so that the remaining strip d (Fig. 8) may
have a tapering, conical or sharply pointed surface, as may be required according
to circumstances for the formation of the corners or joints. In all other respects
the working would be unchanged.
For the purpose of obtaining a finer cut surface, as shown in Figs. 9 and 10,
there may be inserted just behind the paring-knife h, which is then bent to one side,
a vertical adjustable pressing-roller which smoothly presses down the somewhat
roughened cut. If this roller is provided with groovings or flutes, as shown partially
in Fig. 9, corresponding flutes will be formed on the cut surface, whereby the same
will be stiffened.
A modification of the stripper i, which differs from that shown in Figs. 6 and 7,
is also shown in Figs. 9 and 10. The stripper is here provided with several small
circular knives wo which separate the strip to be pared off into several longitudinal
strips, as a preliminary, and thereby greatly facilitate the work, especially if the
strip is broad.
The construction of the apparatus is not limited to the particular forms shown in
the drawings as the same is capable of being modified without departing from the
spirit of the invention.
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. Process guide-strips and overlaps for the formation of the angle-joints of boxes
and caskets of pasteboard leather and the like without the use of adhesive substances
in such manner that the strips of material card-board etc. e are pared away by
+

page_text: mechanical means in the particular places required to form the scarf joints leaving
the material correspondingly thinned or weakened (Figures 3 to 5 and 8).
2. In apparatus such as described a device for paring away the strips of material e
consisting in the combination of a scoring-knife such as g formed on or screwed to a
pressing roller f with a paring-knife such as set obliquely to the surface to be
pared and with a wedge shaped working surface substantially as described and
illustrated in Figures 6 and 7 of the accompanying drawings.
3. In apparatus such as described in Claim 2 the arrangement of a stripper such
as i above the paring-knife as a guide to the slice pared off and to prevent the
material from buckling or rising substantially as described and illustrated in the
accompanying drawings.
4. The combination with apparatus such as described in Claims 2 and 3 of a
smooth or grooved roller such as v for the purpose of smoothing or stiffening the
weakened material substantially as described and illustrated in Figures 9 and 10 of
the accompanying drawings.
5. The combination with apparatus such as described in Claims 2 to 4 of a
stripper having one or more cutting discs in order that the material detached by
the paring knife may come away in two or more separate strips substantially as and
for the purpose described and illustrated in Figures 9 and 10 of the accompanying
drawings.
Dated this 29th day of November 1894.
W. P. THOMPSON & BOULT,
Agents for the Applicant.