Improvements in Machines for Cutting Paper, Tobacco, Leather, Fabrics, and the like.
Year: 1894

page_text: Date of Application, 25th Jan., 1894-Accepted, 9th June, 1894
COMPLETE SPECIFICATION.
Improvements in Machines for Cutting Paper, Tobacco, Leather,
Fabrics, and the like.
We, THOMAS HOWARTH, of 50, Murray Street, Higher Broughton, Cashier,
and JOSEPH WHITELEY, of Clowes Street, Chapel Street, Salford, Pattern-
maker, both in the County of Lancaster, 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 principally to that class of paper cutting machines, which
are used for cutting "paper shavings," but is equally applicable for cutting other
materials in layers, say, tobacco, leather, felt or woven fabric or the like.
Hitherto the class of machines employed for the said purposes have been of the
'guillotine type." Such machines are very slow in action and cause the strips cut
off to adhere together and necessitate separating which is a considerable amount of
trouble in case of paper shavings particularly.
The object of our invention is to overcome the said defects.
And in order that our invention may be more fully understood we have caused to
be appended hereunto one sheet of drawings marked with letters of reference.
indicating like parts in the various figures.
Fig. 1 is a front view, Fig. 2 a plan, and Fig. 3 a cross section, on line A-B of
Fig. 1, of our improved paper, etc., cutting machine.
In carrying out our invention and referring to the figures generally we employ
upon a suitable frame a, a stationary knife blade b, preferably in a horizontal
position, in conjunction with a knife or cutter c secured adjustably to a block d
arranged to slide upon a bed e secured to the frame a. To the block d is imparted
a reciprocal horizontal motion which causes the movable knife or cutter c to
operate in contact with the said stationary knife blade b. The sliding block d is
operated preferably by means of an arm pivoted thereto at 9 and to a crank pin h
carried by a disc or wheel i fixed upon a shaft k mounted in bearings / forming part
of the frame a. The disc or wheel i is rotated by means of the pinion m in gear
therewith and fixed upon the driving shaft n which carries also a fly wheel n', a
fast and loose pulley o & o' and is mounted in bearing a' forming a part of the
frame a.
The knife or cutter c we preferably form as shown in the drawing, see Fig. 1,
with two cutting edges so as to cut each way on its traverse, or the same may be
circular in shape and have rotary motion imparted by such as a pinion and rack, or
pulley and strap as will be readily understood, in addition to its horizontal
reciprocal motion.
The paper p or other material to be cut is placed upon the table g supported by
the frame a and is pressed down upon the same during the cutting operation by
means of a presser-block r guided at each end in grooves s formed in brackets t
secured upon the table 4: The presser block is alternately lifted and depressed
to allow of feeding and cutting the paper p or other material respectively by
means of a rocking lever u jointed thereto by a link u' and operated upon by a
cam e forming part of or fixed upon the boss of the disc or wheel i.
The paper or other material to be cut is automatically fed between the
stationary knife and movable knife or cutter c by means of a plate or other
suitable part e guided in the brackets t and adapted to push against the back edges
of the layers of paper or other material on the table . The plate or other part
is moved preferably by means of a screwed spindle y positioned below the table q
and engaging a nut a fixed to the feed plate or part a. Upon the back end of the

page_text: screwed spindle y is fixed a pinion y¹ gearing into a spur wheel y² having attached
a ratchet wheel y both of which are loosely mounted upon a spindle mounted in a
bearing a formed underneath the table q. Upon one end of the spindle z is fixed
a lever ¹ carrying a pawl in gear with the ratchet wheel y³ and upon the other
end another lever 23 which by means of a rod is connected to one end of a
rocking lever the other end of which is operated upon by a cam v¹ fixed upon the
. shaft k.
The lower end of the lever 2 is formed with holes 2" to allow of radially
adjusting the respective end of the rod 2* and thus impart more or less motion to
the pawl lever ¹ according to the distance to which it is required to feed the
paper p or other material. The screwed spindle y is also furnished with a handle y
by means of which the feed plate or part a can be returned after having disengaged
the pawl 2².
In order to prevent the paper p or other material to be cut from lifting off the
table q a frame q' rendered vertically adjustable is caused to rest thereon.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we,
claim, is-
"In machines for cutting paper and other material."
1st. The general construction and combination of parts constituting our improve-
ments operating substantially as and for the purpose set forth.
2nd. The combination of a stationary knife blade 6 with a knife or cutter c
moving reciprocally in contact with the stationary knife blade b, substantially as
set forth.
3rd. In combination with the table q, a movable block adapted to alternately
depress the paper p or other material when being cut and-release it when being fed
between the cutting device, substantially as set forth.
4th. The combination with the table g of a feed plate or part adapted to push
against the back edges of the paper or other material to be cut and feed the same
automatically between a cutting device, substantially as set forth.
Dated this 24th day of January 1894.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicants.