Improvements in Scoring and Grooving Machines for Paper Board and like Material.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Scoring and Grooving Machines for Paper Board
and like Material.
We, OTTO SCHUBERT, Engineer, and MAX SCHUBERT, Manufacturer, of
64 Reinickendorfer Strasse, Berlin, in the Empire of Germany, do hereby declare
the nature of this invention to be as follows:-
The accompanying drawing illustrates a grooving machine which in its essential
features constitutes an improvenient on the machines or apparatus of this kind.
.heretofore known.
In such machines the arrangement for enabling the grooving apparatus to operate
easily and with certainty and reliability, was heretofore such that the scored portion
was peeled out or removed by the chip-lifter or chip-ejector only after leaving the
scoring knives.
For this purpose it was necessary to find means for pressing the paper-board
materia! against the surface of the feed roller until the chip-lifter (which was
capable of being accurately adjusted as to its depth) has seized the chip or shaving
and had forced it out laterally either towards one or towards both sides.
To enable this invention to be more readily understood reference is made to the
accompanying drawings in which
Figure 1 is a side elevation shewing the whole, machine for grooving.
Figures 2 to 10 illustrate details.
A pair of rollers m m 1 are mounted loose on an axle u that is held firmly in
position by means of springs p p 1. The springs are fixed to the holders a by means
of screws y g in such a manner that a continual spring pressure is exerted upon the
.scored, but still to be grooved, article or works at the place where the chip-ejector
or chip-lifter r (Fig. I) is about to engage in the scored part.
cc are two side
knives and d is a middle knife in case three knives are used as shown in Fig. 8.
The tongues e e1 for guiding the chip are arranged in a very suitable position,
being slipped on to the axle u, (which does not rotate) and soldered thereon, so that
jamming of these tongues with paper-board chips &c. is obviated.
Figures 4, 5, 6, and 7 illustrate in elevation and Fig. 10 in plan a plough-share-
shaped chip-lifter which forces out the chip, not towards the two sides, but only
towards one side. The arrangement is also such that the plough-share-shaped
chip-knife r, as shown in Figs. 5 and 7, is let sideways into the shank h in dovetail
fashion in such a manner that the said chip-knite can be shifted forwards therein
according to the wear. The shank h can be adjusted by the screw k and fixed by
the screw i. (Fig. 1).
By reason of the lateral position or fixing and the plough-share shape of the
knives r choking of the same by chips, and a falling out of the same is prevented.
Figure 8 illustrates two cases, namely, the manner in which the chip is forced
out towards both sides by a wedge shaped chip-lifter, rl shown in sectional plan in
Fig. 9, and also the manner in which the chip is forced out towards one side by a
plough-share-shaped chip-lifter r. In the first case a middle knife d is used. The
chip ejector begins its work in the middle and divides the chip in two parts and w.

page_text: In the other case the chip w¹ is forced out towards one side by means of an injector
provided at its top with an oblique cutting edge.
Dated this 20th day of June 1896.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.
COMPLETE SPECIFICATION.
Improvements in Scoring and Grooving Machines for Paper Board
and like Material.
We, OTTO SCHUBERT, Engineer, and MAX SCHUBERT, Manufacturer, both
of 64 Reinickendorfer Strasse, Berlin, in the Empire of Germany, 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 a grooving machine which in its essential features
constitutes an improvement on the machines or apparatus of this kind heretofore
known.
In such machines the arrangement for enabling the grooving apparatus to operate
easily and with certainty and reliability, was heretofore such that the scored portion
was peeled out or removed by the chip-lifter or chip-ejector only after leaving the
scoring knives.
For this purpose it was necessary to find means for pressing the paper-board
material against the surface of the feed roller until the chip-lifter (which was
capable of being accurately adjusted as to its depth had seized the chip or shaving
and had forced it out laterally either towards one or towards both sides.
To enable this invention to be more readily understood reference is made to the
drawings which accompanied the Provisional Specification wherein;-
Figure 1 is a side elevation showing the whole machine for grooving.
Figures 2 to 10 illustrate details.
A pair of rollers mm² are mounted loose on an axle u that is held firmly in
position by means of springs ppl. The springs are fixed to the holders a by meaus
of screws g g in such a manner that a continual spring pressure is exerted upon the
scored, but still to be grooved, article or work s at the place where the chip-ejector
or chip-lifter Figure 1 is about to engage in the scored part. cc' are two side
knives and d is a middle knife in case three knives are used as shown in Figure 8.
The tongues e e' are situated above the material and between the knives c c¹ but
slightly behind, the vertical centre lines thereof and they guide the cut material
(which is to form the chip) as it leaves the knives on towards the chip ejector.
They are slipped on to the axle u (which does not rotate) and soldered thereon, so
that jamming of these tongues with paper-board, chips, &c., is obviated.
Figures 4, 5, 6 and 7 illustrate in elevation and Figure 10 in plan a plough-share-
shaped chip-lifter which forces out the chip, not towards the two sides, but only
towards one side. The arrangement is also such that the plough-share-shaped
chip-knife r, as shown in Figures 5 and 7, is let sideways into the shank / in dovetail
fashion in such a manner that the said chip-knife can be shifted forwards therein
according to the wear. The shank h can be adjusted by the screw k and fixed by
the screw i (Figure 1).
By reason of the lateral position or fixing and the plough-share shape of the
.knives r choking of the same by chips, and falling out of the same is prevented.
Figure 8 illustrates two cases, namely the manner in which the chip is forced
out towards both sides by a wedge-shaped chip-lifter r, shown in sectional plan in

page_text: Figure 9 and also the manner in which the chip is forced out towards one side by a
plough-share-shaped chip-lifter r. In the first case a middle knife d is used. The
chip ejector begins its work in the middle and divides the chip in two parts and w.
In the other cases the chip w¹ is forced out towards one side by means of an ejector
provided at its top with an oblique cutting edge.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is ;-
(1.) Improvements in scoring and grooving machines provided with a number of
circular knives characterized by the arrangement of springs with one or more
guiding rollers, pressing the surface of the material to be grooved to the feed
rollers in those places where the edges of the chip ejector enters the preliminary
scored part of the material to be treated, so as to always produce an equal chip,
corresponding to the adjustment of the chip ejector as herein described and set
forth.
(2.) In the grooving apparatus mentioned in Claim 1 the formation of a plough-
share-shaped chip ejector r chamfered on one side for the purpose of forcing out
the chips on one side only as herein described with reference to Figures 4, 5, 6, 7, 8.
and 10 of the drawings.
(3.) In the grooving apparatus claimed in Claim 1, the peculiar arrangement of
the tongues ee fastened to the springy pressure roller u, lifted or lowered according
to the thickness of the material to be grooved.
(4.) In the grooving apparatus mentioned in Claim 1 the formation of a wedge--
shaped chip ejector for the purpose of forcing out the chip on two sides as-
herein described with reference to Figures 8 and 9 of the drawings.
C
1007
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and.
13, Temple Street, Birmingham, Agents.