Improvements in Machinery for Cutting, Chopping, or Tearing Rags and other Fibrous Material.
Year: 1889

page_text: Date of Application, 23th Nov., 1889
Complete Specification Left, 27th Sept., 1890-Accepted, 22nd Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Cutting, Chopping, or Tearing Rags
and other Fibrous Material.
ERNEST VICTOR ALBERT MITCHELL Croyden Terrace, Manchester Road Bury
Lancashire Engineer do hereby declare the nature of this invention to be as
follows:-
My object is to effect the cutting, chopping, or tearing of rags and other fibrous
material both lengthwise and transversely by one operation and by the same machine.
To effect this result I employ a series of metal blocks, such blocks may be of square
or more or less angled design. The said blocks I fix on square or angled or round
shafts at suitable intervals, the blocks upon one shaft to revolve in between the blocks
held on the opposite shaft, the two said shafts being parallel with each other. The
angles of said blocks I arrange to come within practicable proximity of the surface
or circumference of the opposite shaft to form cutting, chopping or tearing points
and vice-versa in regard to the opposite series of blocks, and so effect the transverse
desideratum.
The lengthwise cutting chopping or tearing is effected by the edges of the "he" &
"she" blocks revolving to each other-that is, in opposite directions--and acting more
or less as a pair of scissors, thus accomplishing what has hitherto required two separate
operations by one operation alone.
The blocks I may arrange upon their shafts so as to be able to move or adjust the
angles of blocks to meet each other or otherwise as preferred.
Dated this 97th day of November 1889
ERNEST VICTOR ALBERT MITCHELL.
COMPLETE SPECIFICATION.
Improvements in Machinery for Cutting, Chopping, or Tearing Rags
and other Fibrous Material.
İ, ERNEST VICTOR ALBERT MITCHELL, of Croyden Terrace, Manchester Road,
Bury, in the County of Lancaster, Draughtsman, 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:-
-
The object of my invention is to effect the cutting, chopping, or tearing of rags
and other fibrous materials, both lengthwise and transversely by one operation and by
the same machine, in a rapid and effective manner.
And in order that my invention may be more fully understood I 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 side elevation, Fig. 2 a plan, Fig. 3 an end elevation and Figs. 4 & 5,
are details of elevation and plan of cutting blocks, constructed and arranged according
to my invention.
the
In carrying out my invention and referring to the figures generally,
rags or
other materials to be cut are placed upon the feeding table or trough a in which is
placed rn endless apron a' driven by a roller b, which conveys the rags and other
materials to the hopper c into which they fall from the travelling apron a¹ over a
small roller d and then into the nip of the series of cutting blocks e, f, which are
arranged in two parallel lines and secured to shafts e¹, & f¹. The blocks e, f, run in
between each other as shown in Fig. 4, and can be placed at any relative position to
one another, that is to say, one line of blocks e can be turned to any position to the

page_text: other line of blocks f by taking out of gear either of the two wheels h or i or the
blocks e, can be placed individually to any relative position in which the keybed
is put in the block e, f. The edges of the blocks e, f may also be serrated or plain
as I may determine and may be made of any polygoned angled design as may be
deemed preferable.
When the rags and other materials fall into the nip of the block e, f as herein-
before stated, they are operated upon in the first place more or less like a pair of
scissors, see Fig. 5, by the edges j & k of the blocks e, f revolving towards each
other, or in different direction, thus accomplishing the lengthwise cut.
The transverse desideratum is performed and accomplished by the corner cutting
edges l, m, n, o of the blocks e, f, placed on the shaft e passing within practical
proximity to the circumferential surface of the opposite shaft f1 and vice-versâ, with
regard to opposite series of blocks which are secured on the shaft . The surface
of the shafts where the cutting edges of the blocks pass may be serrated, longitudinally,
spirally, or be made plain, and the cutting corner edges of the blocks e, f may
be made oblique if desired. The corner cutting edges of the blocks e, f are
adjusted by means of a hand wheel and screw 7'. The rags and other
fibrous materials after passing through the cutting blocks e, f, fall upon
the travelling aprons and are delivered as desired. The blocks e, f may be incased
by sheet iron plates, so that the materials cannot fly about. To keep the cutting
blocks e, f clear of the refuse that may accumulate thereon doctor blocks may be
employed between their sides and against the periphery of the same. These doctor
blocks are fastened to a cross rail fitted between the frame of the machine, the
surfaces of the doctor blocks in contact with the sides of the cutting blocks e, f being
serrated. The corner cutting edges of the blocks e, f may be made to form part
thereof, as shown in Fig. 5, or they may be furnished with removable knives. The
two lines of the blocks e, f are driven by spur wheels h & i, which are geared into
pinions t and u, the pinion u being geared also into pinion which is secured upon
the cross shaft e¹, to which is also secured the pinion t. The driving pinion u is
geared into pinion and secured upon the driving shaft w and the whole machine
driven by fast and loose pulleys.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim, is :-
:-
"In machinery for cutting, chopping, or tearing rags and other fibrous material."
1st. The combination of a series of square or polygon angled blocks e, f secured
at intervals on parallel shafts e, f, which blocks e, f, are rotated between and in
opposite direction to each other and cut the material under treatment longitudinally
as well as transversely, in one operation, substantially as set forth.
2nd. The combination of the blocks e, f, specified in the preceding claim, with
a travelling apron al adapted to feed the material to be treated, between the same,
substantially as set forth.
Dated this 26th day of September 1890.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.