Improvements in or relating to Machinery or Apparatus for Scoring or Grooving Cardboard, Strawboard, and the like.
Year: 1894

page_text: Date of Application. 29th Oct., 1894
Complete Specification Left, 24th July, 1895-Accepted, 24th Aug., 1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to Machinery or Apparatus for Scoring
or Grooving Cardboard, Strawboard, and the like.
We, THOMAS SOWERSBY of 33 Darley Street, Leicester, Manager and
WILLIAM ALLEN of Norton Street, Leicester, Cardboard Box Manufacturer, do
hereby declare the nature of this invention to be as follows:-
This invention has reference to machinery or apparatus for scoring or grooving
cardboard, strawboard and the like to permit of one or more parts thereof being
more readily bent at a right angle to other parts as in the formation of cardboard
boxes and the like articles.
According to this invention the scoring or grooving is effected by means of one
or more revolving cutters of suitable construction.
The sheets of cardboard and the like to be scored or grooved are placed upon a
suitable bed plate, then passed between feed rollers and while under the control of
the latter are submitted to the action of the revolving cutter or cutters, afterwards
leaving the machine through delivery rollers.
The shape of the groove, which by preference is V shaped, is determined by the
shape of the cutter, and the depth of the groove may be varied by adjusting the
cutter for that purpose.
The said cutter is very rapidly driven by a belt and may be adjusted in either
a horizontal or a vertical direction or in both of such directions.
A suitable guide plate or plates may be employed to ensure the cardboard or
like material being uniformly scored or grooved and such guide plates may be
adjustable for varying thicknesses and sizes of boards.
The whole of the mechanism may be carried or supported by suitable side
standards or framing.
Dated this 29th day of October 1894.
W. P. THOMPSON & BOULT,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in or relating to Machinery or Apparatus for Scoring
or Grooving Cardboard, Strawboard, and the like.
We, THOMAS SOWERSBY of 33 Darley Street, Leicester, Manager and
WILLIAM ALLEN of Norton Street, Leicester, Cardboard Box Manufacturer, 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 aud by the following
statement :-
This invention has reference to machinery or apparatus for scoring or grooving
cardboard, strawboard and the like to permit of one or more parts thereof being
more readily bent at a right angle to other parts us in the formation of cardboard
boxes and the like articles.
1

page_text: According to this invention the scoring or grooving is effected by means of one
or more revolving cutters of suitable construction.
The sheets of cardboard and the like to be scored or grooved are placed upon a
suitable bed plate then passed between feed rollers and while under the control of
the latter are submitted to the action of the revolving cutter or cutters afterwards
leaving the machine through delivery rollers.
The shape of the groove which by preference is ✓ shaped is determined by the
shape of the cutter and the depth of the groove may be varied by adjusting the
cutter for that purpose.
The said cutter is very rapidly driven by a belt and may be adjusted in either a
horizontal or a vertical direction or in both of such directions.
A suitable guide plate or plates may be employed to ensure the cardboard or
like material being uniformly scored or grooved and such guide plates may be
adjustable for varying sizes of boards.
The whole of the mechanism may be carried or supported by suitable side
standards or framing.
The invention will be fully understood from the following further description in
reference to the accompanying drawings in which
Figure 1 is a plan of so much of the central part of a cardboard scoring or
grooving machine embodying our improvements as is necessary to illustrate the
invention.
Figure 2 is a transverse section through the upper part of the machine.
Figure 3 is an end view of the machine, and
Figure 4 a detail view of the rotary cutter, its driving pulley and bearings for same.
Figure 3 is drawn to a smaller scale than the other figures.
A represents the bed plate which supported on side, standards A
B B are two guide plates carried on right and left handed screws B B³
respectively which by a hand wheel B Fig. 3 on the end thereof can be rotated to
traverse the said guide plates to or fro to adjust them relatively to each other for
varying widths or sizes of boards.
The movement of each of the said guide plates is effected through the medium
of an internally threaded block such as B³ Fig. 2 on the said screw, the said block
having a vertical threaded stalk B passing through a longitudinal slot in the bed
plate A, through an opening in the said guide plate and through a wheel nut B'
the tightening of which draws the said stalk.upwardly and presses the said block B
firmly against the upper part of the passage in the bed plate in which the said
block is located and thus fixes the guide plates in position as is indicated most
clearly in Figure 2.
The distance between the two guide plates B B¹ represents the width of the
cardboard to be scored or grooved.
CC represent the feed rollers and D D' the delivery rollers.
The rollers C and D are driven by the same belt E passing over a pulley Fon
the driving shaft F1 and also over an intermediate adjustable belt tightening
pulley F, Figure 3.
The upper rollers C and D are mounted in spring bearings C' D' and are driven
by frictional contact with the cardboard when the latter is passed between the said
rollers.
The machine so far described is of ordinary construction.
According to this invention the cardboard to be grooved or scored is passed
under and in contact with one or more rapidly revolving cutters.
The cardboard to be scored is first of all placed flat upon the bed plate A and
between the guide bars B B₁ the latter being previously fixed the same distance
apart as the width of the cardboard so that the latter just fits in between.
The cardboard is then pushed forward by the operator between the feed-
rollers C C¹ and is thereby conducted to the revolving cutter or cutters G which
scores or grooves it, after which the delivery rollers DD' shoot it out at the back
of the machine.

page_text: Each revolving cutter is carried on the end of a pulley H. being pushed close
up against a shoulder H thereon Fig. 4 and fastened in position by a nut H' on
the screwed end of the said pulley, the latter being revoluble on a spindle J the
head J' of which is located flush within the end thereof as shown most clearly in
Figure 3, while the opposite end of the said spindle passes through a tubular
bearing K' forming the integral lower part of a plate K and is secured therein by
a nut K on the threaded end of the spindle.
The cutter driving pulley H has a very rapid motion imparted to it by a belt L'
passing over a pulley L on the shaft L.
To adjust the rotary cutter for varying thicknesses of cardboard and also to
increase or decrease the depth of the groove to be formed in the latter, the said
cutter is movable in a vertical direction.
For this purpose the plate K is furnished with a slot K therein so that уроп
releasing the screw Kit can be either lowered or raised to the desired extent by
turning the screw K which passes through the upper angular end of the said plate
and into a slidable bracket M.
When only a single groove is to be formed in the cardboard the guide plates BB'
may be adjusted relatively to the cutter G or the latter adjusted (as hereinafter
described) to the guide plates.
When however two parallel scores or grooves are to be formed in the cardboard,
as at the points where the cardboard is to be bent at an angle to form either the
sides or ends of a cardboard box or its lid, two rotary cutters are employed, as in
Figure 1, in which case it is preferable to first adjust the said cutters relatively to
each other the distance between being equivalent to the width of the box or the
lid thereof. The said guide plates may then be adjusted in relation to the cutters
and placed such a distance apart as is equivalent to the width of the cardboard to
be grooved.
When more than one cutter is employed the parts for supporting and driving
same are duplicated as will be readily understood upon reference to Figure 1, and
to permit of the said cutters being adjusted with relation to each other they are
mounted upon a right and a left handed screw respectively which screw is rotated
by a hand wheel on the end thereof as hereinafter described.
Each cutter carrying bracket M, has its base, hereinafter referred to as a slide
block M', Fig. 2 formed with inclined sides so as to dovetail into a similarly
shaped guideway or passage in a guide bar M' forming the upper part of the
framing and be slidable therein.
A removable bar N secured in position by screw bolts N' N' is employed to
obviate lateral movement on the part of the bracket M.
To move the cutter in a horizontal or longitudinal direction for the purpose of
adjusting it relatively to the guide plates B B', the slide block M' of the cutter
carrying bracket is mounted upon a screw O¹ and to adjust one cutter relatively to
the other, when two cutters are employed, their respective slide blocks are carried
upon right and left handed screws 0 0¹, Fig. 1, respectively, the said screw being
provided on the end with a hand wheel P, Fig. 4, for actuating it upon the latter
being rotated, the screws 002 cause the slide blocks and connected brackets M
of the rotary cutters to travel to or from each other within the passage formed in
the guide bar M*.
Each pulley L for driving each rotary cutter is keyed on the shaft L' which has
bearings in pillars R Fig. 2, forming part of the bracket M M', the said shaft
being driven by a pulley S on the end of the same and a belt S' passing round it
and also round a further pulley T on the driving shaft F', Fig. 3.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
1. In machinery for scoring or grooving cardboard or the like the use or
employment of one or more rotary cutters substantially as described.

page_text: 2. In machinery for scoring or grooving cardboard or the like the use or
employment of two or more rotary cutters adjustable both relatively to each other
and also for varying the depth of the groove to be formed substantially as described.
3. In machinery for scoring or grooving cardboard or the like the combination
with feed and delivery rollers of one or more rotary cutters and means for adjusting
the said cutters to vary the distance between the grooves and also to increase or
decrease the depth of the groove substantially as described.
4. In machinery for scoring or grooving cardboard and the like the combination
of a rotary cutter, a slotted plate to permit of the vertical adjustment of the said
cutter and a screw and means for rotating it to effect the horizontal adjustment of
the said cutter substantially as described.
5. In machinery for scoring or grooving cardboard or the like the combination
of two vertically adjustable rotary cutters and right and left handed screws and
means for actuating the latter to adjust the said cutters relatively to each other to
vary the distance between the grooves substantially as described.
6. In a machine for scoring or grooving cardboard or the like the combination
of horizontally adjustable guide plates, feed and delivery rollers, one or more rotary
cutters adjustable for varying depths and distances of grooves and means for
actuating the said cutters substantially as described.
7. In a machine for scoring or grooving cardboard or the like the combination
of one or more rotary cutters and means for driving same, one or more sliding
brackets, and means for actuating the latter to adjust the said cutter or cutters in a
horizontal direction substantially as and for the purpose described.
8. In a machine for scoring or grooving cardboard or the like one or more
rotary cutters and means for adjusting and actuating same, constructed, arranged
operating substantially in the manner described and illustrated in the accompanying
drawings.
9. The improved machine for scoring or grooving cardboard or the like
substantially as described and illustrated in the accompanying drawings.
Dated this 23rd day of July 1895.
Witness:
E. N. LEWIS,
Berridge Street Chambers, Leicester.
THOMAS SOWERSBY.
W. P. Thompson & Boult,
Agents for the Applicants.