Improvements in Machines for Scoring, Grooving, and Cutting Card- board and Similar Materials employed in the Manufacture of Boxes and the like.
Year: 1897

page_text: Date of Application, 9th Oct., 1897-Accepted, 13th Nov., 1897
COMPLETE SPECIFICATION.
Improvements in Machines for Scoring, Grooving, and Cutting Card-
board and Similar Materials employed in the Manufacture of
Boxes and the like.
We, ARTHUR WILLIAM STEVENSON, of Bridge Street, Ardwick, Manchester, in
the County of Lancaster, Fancy Box Manufacturer, and NATHANIEL BOTT
CHADWICK, of 211 Bramhall Lane, Stockport, in the County of Chester, Engineer,
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:--
Our Invention relates to improvements in machines for scoring grooving and
cutting cardboard and similar materials employed in the manufacture of boxes
and the like, and our improvements consist chiefly in arranging the saw shaft
in such a manner that the boards to be scored run over the saws instead of
beneath them as heretofore and in arranging a separate adjustable pressure roller
or disc over each saw instead of employing one roller for all the saws.
And in order that our Invention may be fully understood and readily carried
into effect we will describe the same with reference to the acccompanying
two sheets of drawings in which
Figure 1 is a front sectional elevation Figure 2 a transverse vertical section,
and Figure 3 part of an end view of a machine embodying our improvements.
In these views a designates the table and frame of the machine, 6 the driving
shaft to which motion is given by a belt not shown and a pair of fast and loose
pulleys c. The cardboard is laid on the table a and is fed through a pair of
rotating feed rollers e over the saws f of which any convenient number are secured
adjustably on a single shaft g which is driven by a pulley g' and belt g from a
pulley 6 fixed on the driving shaft b. In slideways on a cross beam h are
secured adjustably a number of holders i each of which carries a pressure roller
or disc j. There are as many discs j employed as there are saws f and each
disc j is brought exactly over its corresponding saw by sliding it along the beam h
and then fixing it in position by means of a thumb screw k; each disc j can also
be adjusted vertically to or from its saw by means of a milled nut and screw
according to the thickness of the cardboard and the depth of the cut required.
After passing over the rotating saws f the cardboard is carried forward by a second
pair of rotating feed rollers m to a pair of revolving cutters n by which the
board is cut up and divided into pieces of the required size.
The revolving
cutters n are driven from a pulley 62 on the driving shaft b by a belt n2 and a
pulley fixed on the shaft of the lower cutter n the upper cutter being driven
from the lower by a pair of spur wheels o; and the two pairs of feed rollers e m
are driven from the lower spur wheel o by a train of gears p. The cross beam h
is hinged at a¹ to the frame and when the machine is at work, it is secured in
position by a screw 9 but when access is required to the saws f for sharpening or
other purposes the screw q is released and the cross beam can then by means
of a handle h be turned back into the position indicated by dotted lines in Fig. 2.

page_text: with the
The saw shaft g is journalled in slide blocks r adjustable vertically by means of
two screws s each of which passes through a tapped plate t fitted in a horizontal
slideway in the frame so that when the cross beam h with the holders i and discs j
is turned back into the position indicated in Fig. 2 the saw shaft
journal blocks r can be lifted out of the machine after the screws s have been
turned to unscrew them from the blocks and the plates t with the screws have
been withdrawn from their horizontal slideways.
By our improvements in mounting the saws beneath instead of above the
cardboaru it will be obvious that the saw dust will fall freely down instead of
remaining on the cardboard or having to be brushed off or otherwise removed.
To catch the saw dust we employ a trough a preferably connected by a pipe u¹ with
an exhaust fan or other suitable appliance, not shown, by which the saw..
dust is
rapidly carried away.
It is obvious that by our improvements the sheets of board can be fed with the
printed or face side upward which is a great advantage.
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. The combination with a series of saws mounted beneath the cardboard on
a single driven shaft, of a corresponding series of pressure rollers or discs
supported preferably in a hinged frame and each adjustable relatively to its saw
substantially as and for the purposes herein set forth.
2. The combination with a series of saws mounted beneath the cardboard and
a corresponding series of adjustable pressure rollers or dises, of the trough in
connection with an exhaust fan or its equivalent substantially as and for the
purposes herein set forth.
3. The general construction combination and arrangement of parts embodying
our improvements substantially as herein set forth.
Dated this 7th day of October 1897.
H. B. BARLOW & GILLETT,
17 St. Ann's Square Manchester, Agents for Applicants.