An Improvement in Paper Cutting Machines...
Year: 1898

page_text: "Complete Specification Left, 8th Aug., 1899-Accepted, 4th Nov. 1899
27 150 .
PROVISIONAL SPECIFICATION.
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An Improvement in Paper Cutting Machines...
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LEO CROSLAND, Stockport Road, Bredbury, Machinist, and WILLIAM CROSLAND
LIMITED, Engineers, Bank Foundry, Stockport Road, Bredbury, in the County of
Chester, do hereby declare the nature of this invention to be as follows:-.
'
The object of this invention is to prevent the knife from passing too far through
the paper, and making a deep nick or groove in stick, lead, or other material
used for cutting upon. To attain this object we fix a spring in such a position
that the knife beam will come in contact with it before the knife gets through
the paper, thus taking the whole weight of beam and knife and prevent them
dropping farther than is required, the same thing can be effected by the use of
a lever and weight which we also claim as part of our invention.
Datal th
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An Improvement in Paper Cutting Machines.
LEO CROSLAND, Stockport Road, Bredbury, Machinist, and WILLIAM CROSLAND
LIMITED, Engineers, Bank Foundry, Stockport Road, Bredbury, in the County of
Chester, 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;
4
The object of this invention is to prevent the knife from passing too far through
the paper and making a deep nick or groove in stick, lead or other material used
for cutting upon. To attain this object we fix a spring in such a position that
the knife beam will come in contact with it before the knife gets through the
paper thus taking the whole weight of beam and knife and prevent them dropping
farther than is required, the same thing can be effected by the use of a lever and
weight, which we also claim as part of our invention.
In order that our invention may be better understood, we supply drawings and
references to letters and figures marked thereon. Fig. 1 shows the back view of
a paper cutting machine.
Fig. 2 is a detatched view of the springs G G with plate F resting on them.

page_text: Fig. 3 is an end view of same A A are the 2 frames or sides of the machine,
BB is the beam that carries the knife, CC is the knife, DD are 2 small rollers
running on studs projecting from the knife beam, F is a flat plate restings on
springs G G at each end, E is a stay which connects the 2 frames or sides having
two projections H H see Fig. 3 on which the springs G G rest.
KK shows the presser which holds the paper.
The mode of operation is as follows, when the knife beam B B decends, and
bas cut the paper nearly through the rollers D D come in contact with the plate F
which is supported by springs G G which take the entire weight of the knife
beam, and prevent any tendency from dropping when it has passed through the
paper.
The same object can be attained by weight and lever as shown on Fig. 4, 5
and 6.
i
Fig. 4 shows the front view of the same machine as Fig. 1. Fig. 5 shows a
detatched view of the lever N and weight 0. Fig. 6 is the end view of same.
M is a flat connecting rod with head S, as shown on Fig. 6. L is a small bracket
bolted to knife beam B B and carrying connecting rod M. N is a long lever with
a weight O at one end and a slot at the other end in which the connecting rod M
slides, this lever works on stud P which is fixed on stay E.
The mode of operation is as follows when the knife beam B B decends and has
cut the paper nearly through the head S on the end of connecting rod M comes
in contact with the end of lever N and lifts the weight O which is regulated so as
to balance the weight of knife stock B B and prevent any tendancy from drop-
ping when it has passed through the paper.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed, we declare that what
we claim is:
1
The use of springs or weights to prevent the knife from dropping when it has
cut through the work and the power is expended.
Dated this 4th day of August 1899.
LEO CROSLAND,
For William Crosland Limited,
MILNER CROSLAND, Secretary pro tem.,
Chairman,
WILLM. CROSLAND,
GEO. CROSSLAND
GEOS CROSSLAND} Directors.