Improvements in Machinery for Cutting or Slitting and Winding or Reeling Paper and the like.
Year: 1893

page_text: Date of Application, 19th Sept., 1893
Complete Specification Left, 13th Jan., 1894-Accepted, 17th Feb., 1894
.
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Cutting or Slitting and Winding or
Reeling Paper and the like.
I, JAMES ROBERT BERTRAM, of Leith Walk Foundry, Leith, in the County of
Mid Lothian, North Britain, Engineer, do hereby declare the nature of this
invention to be as follows, that is to say :-
My said invention has for its object to simplify and improve the construction and
operation of machinery for cutting or slitting and winding or reeling paper or
the like.
In a machine as made with the improvements the paper is as usual, drawn off a
roller to which tension or drag is applied by means of an adjustable frictional
brake, and is passed between a pair of rollers and has its extreme edges trimmed
by suitable cutters in an ordinary way, such trimming of the edges being effected
separately from, and prior to the slitting of the web into two or more widths. The
edge-trimmed paper passes onwards to a drum or roller driven by means of suitable
gearing and having resting on it the reel or large spool on which the paper is to be
wound and which the drum drives by frictional action, the paper passing in contact
with a part of the drum and between it and the reel as it is being wound on the
latter. The journals or spindle ends of the reel are fitted into bearing blocks
capable of moving up on vertical guides as the reel with the paper on it increases
in diameter. The slitting is effected by a cutter roller, which, during the slitting
operation, rests on the top of the paper on the reel, being held in end bearing blocks
fitted to slide on the vertical guides.
The cutter roller is made up of the required number of thin steel cutting disks
strung on a shaft, on which are also strung slabs or short cylinders at the ends and
between the cutting disks, to hold the cutting disks in the required positions, and
also to press with their weight upon the paper. The edges of the cutting disks
project just as much beyond the surfaces of the slabs as to cut into the paper to the
desired depth. The cutter roller is driven by the frictional action of the paper
itself; and it serves the double purpose of slitting the paper and at the same time
hardening and condensing it whilst it is being wound. Means are provided for
raising and suspending the cutter roller clear of the reel of paper to facilitate the
removal of a filled reel.
Dated this Eighteenth day of September 1892.
•
EDMUND HUNT,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Machinery for Cutting or Slitting and Winding or
Reeling Paper and the like.
I, JAMES ROBERT BERTRAM, of Leith Walk Foundry, Leith, in the County of
Mid Lothian, North Britain, 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, that is to say :—
My said invention has for its object to simplify and improve the construction and
TD 11

page_text: operation of machinery for cutting or slitting and winding or reeling paper or
the like.
In carrying out my invention I arrange a cutter roller to rest on the top of the
paper on the reel and to work in and bearing blocks fitted to slide on vertical
guides. This cutter roller is made up of the required number of thin steel cutting
disks to slit the web of paper into the required separate widths, and these disks are
strung on a shaft on which are also strung slabs or short cylinders at the ends and
between the cutting disks to hold the cutting disks in the required positions, and
also to press with their weight on the paper. The edges of the disks project just
as much beyond the surfaces of the slabs as to cut into the paper to the desired
depth and the cutter roller is driven by the frictional action of the reel of paper
itself.
And in order that my said invention and the manner of performing the same may
be properly understood I hereunto append two sheets of explanatory drawings, to be
hereinafter referred to, and showing a machine for cutting or slitting and winding or
reeling paper, as made with my improvements.
Figure, 1, on Sheet, 1, of the drawings is a shortened front elevation of the
machine.
Figure, 2, is a shortened longitudinal vertical section of the cutter roller.
Figure, 3, on Sheet, 2, is a side elevation of the machine, a part of the main
driving shaft being broken away for the sake of clearness.
In these drawings the same reference letters and numerals are used to mark the
same or like parts wherever they are repeated.
In a machine as made with the improvements the paper, A, is, as usual, drawn off
a roller, B, to which tension or drag is applied by means of an adjustable brake, C,
and is passed between a pair of rollers, D, and has its extreme edges trimmed by
suitable cutters, on one of these rollers in an ordinary way such trimming of the
edges being effected separately from and prior to the siitting of the web into two
or more widths. The edge-trimmed paper, A, passes onwards round guide rollers
to a drum or roller, E, driven by means of a pulley, F, and having resting on it
the recl or large spool, G, on which the paper is to be wound, and which the drum
drives by frictional action, the paper passing in contact with a part of the drum,
and between it and the reel as it is being wound on the latter. The journals or
spindle ends, H, of the reel, G, are fitted into bearing blocks, J, capable of moving
up on vertical guides, K, as the reel with the paper, A, on it increases in
diameter. The slitting is effected by a cutter roller, L, which during the slitting
operation rests on the top of the paper, A, on the reel, G, being held in end
bearing blocks, M, fitted to slide on the vertical guides, K, at the sides of the
machine.
The cutter roller, L, is made up of the required number of thin steel cutting
disks, N, strung on a shaft, P, on which are also strung slabs or short cylinders, Q
at the ends and between the cutting disks, to hold the cutting disks in their
required positions, and also to press with their weight on the paper, A. The
slabs, Q, and cutting disks, N, are held on the shaft, P, by nuts, P 1, screwed on
each end of the shaft. The edges of the cutting disks, N, project just as much
beyond the surfaces of the slabs, Q, as to cut into the paper, A, to the required
depth. The cutter roller, L, is driven by the frictional action of the paper, A,
itself; and it serves the double purpose of slitting the paper and at the same time
hardening and condensing it whilst it is being wound. For raising and suspending
the cutter roller, L, clear of the reel of paper, A, to facilitate the removal of a
filled recl, there is arranged in bearings, R, in the upper part of the framing, S, of
the machine, a transverse shaft, T, fitted with pulleys, U, at each end which are
_connected by ropes, V, to the bearing blocks, M, of the cutter roller. The shaft, T,
has on it a worm wheel, W, which can be actuated by a worm on a spindle, X, having
also on it a handwheel, Y, and suitably arranged in a bearing, Z, in the upper part
of the framing, S.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :
In machinery for cutting or slitting and winding or reeling paper and the like, a
cutter roller made of thin steel cutting disks, which are strung on a shaft between
slabs or short cylinders, the said roller being arranged to rest on and be frictionally
driven by the reel of paper and held in bearings movable on vertical guides
substantially as herein before described.
Dated this Twelfth day of January 1894.
EDMUND HUNT,
Applicant's Agent.