Improvements in Band Cutting and Sawing Machines for Cloth and other Materials.
Year: 1891

page_text: Date of Application, 21st Feb., 1891
Complete Specification Left, 21st Nov., 1891-Accepted, 24th Dec.,
1891
PROVISIONAL SPECIFICATION.
Improvements in Band Cutting and Sawing Machines for Cloth and
other Materials.
We, DAVID BROWN and JAMES PALIN COOP, of the firm of Messrs. Brown and
Coop, of Wood Street Mill, Wigan, in the County of Lancaster, Wholesale
Clothing Manufacturers, and FREDERIC HURST, in the employ of the said
firm, Mechanic, do hereby declare the nature of this invention to be as
follows:-
:-
Our invention relates to the band cutting machines employed in cutting out
cloth and fabrics for garments and it is also applicable to band saw machines
for cutting wood and metal and the object of our invention is to relieve the
band or saw from the torsion or side strain to which it is constantly subjected
especially when cutting irregular shapes or turning corners.
In the band cutting and band sawing machines of the ordinary construction
the knife is passed between roller guides either above or below the material to
be cut or both above and below. The band knife or saw also passes through a
slit formed in the machine table top, this slit being rigid does not give way to the
knife or saw when turning round irregular shapes and corners the consequence
being that the slit gets cut and enlarged and at the same time it takes off the edge
of the knife, it also subjects the knife to considerable strain and twist which is the
cause of the knives breaking so frequently.
To overcome this difficulty we have a stud with a slit for the knife or saw to
pass through mounted and free to swivel in a recess cut in the machine table by
which means the stud acts as a movable guide for the knife or saw thus relieving
the strain in whatever position it occupies and preventing the frequent liability to
breakage.
H. B. BARLOW,
Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in Band Cutting and Sawing Machines for Cloth and
other Materials.
We, DAVID BROWN and JAMES PALIN COOP, of the firm of Messrs. Brown
and Coop, of Wood Street Mill, Wigan, in the County of Lancaster, Wholesale
Clothing Manufacturers, and FREDERIC HURST, in the employ of the said firm,
Mechanic, 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 the band cutting machines employed in cutting out
cloth and fabrics for garments and it is also applicable to band saw machines
for cutting wood and metal and the object of our invention is to relieve the
band or saw from the torsion or side strain to which it is constantly subjected
especially when cutting irregular shapes or turning corners.
In the band cutting and band sawing machines of the ordinary construction
the knife is passed between roller guides either above or below the material to
be cut or both above and below. The band knife or saw also passes through a slit
formed in the machine table top, this slit being rigid does not give way to the
knife or
saw when turning round irregular shapes and corners the consequence
being that the slit gets cut and enlarged and at the same time it takes off the edge
D 1

page_text: of the knife, it also subjects the knife to considerable strain and twist which is the
cause of the knives breaking so frequently.
To overcome this difficulty we have a stud with a slit for the knife or saw to
pass through mounted and free to swivel in a recess cut in the machine table by
which means the stud acts as a movable guide for the knife or saw thus relieving
the strain in whatever position it occupies and preventing the frequent liability to
breakage.
And in order that our invention may be fully understood and readily carried into
effect we will describe the accompanying sheet of drawings reference being had to
the figures and letters marked thereon.
Fig. 1 represents a side elevation partly in section of a band knife machine for
cutting cloth etc., to which our improvements are applied,
Fig. 2 is a plan of part of the same and
Figs. 3 and 4 are two views on an enlarged scale of our improved guide for the
band knife.
In the drawings, is the frame of a band cutting machine, the table in which
is fitted the plate c, a slit el is made in this plate c through which the band knife f
is passed and by which it is guided when the machine is cutting straight or
irregular forms. We fit so as to swivel freely a stud or disc near the inner edge
of the plate c, see Figs. 3 and 4, a slit g' is cut through this disc which is brought
opposite the slit o' in the plate c before pushing the plate c up to its working position
as seen in Fig. 2. The knife is shown in Fig. 1 supported by guide rollers h
and placed above and below the table as customary in many band knife and
band saw machines.
Our improved swivel guide while allowing the band knife to move freely in
cutting irregular forms still holds it to its work as effectually as with a fixed guide
slit while at the same time it relieves the band knife of much friction caused by
rubbing on the guide surfaces and in consequence the knife will last much longer
and cut better as its edge is not forced against the edges of a fixed guide slit.
Although we have described our improvements as applied to a band knife
machine for cutting cloth and materials employed in making clothing the same
can be applied to band saw machines for cutting wood and other substances.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:-
In machines for cutting and sawing cloth and other materials the combination
with the band knife or saw, of a swivel guide supported in or on the machine table
substantially as and for the purposes herein set forth.
Dated this 20th day of November 1891.
.H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicants.