An Improvement in Rollers used in Machines for Cutting Velvets and other Piled Fabrics.
Year: 1890

page_text: Date of Application, 9th July, 1890
Complete Specification Left, 9th Apr. 1891-Accepted, 9th May, 1891
PROVISIONAL SPECIFICATION.
An Improvement in Rollers used in Machines for Cutting Velvets
and other Piled Fabrics.
We JOHN JAMES MANN of Ordsall Lane Mills Salford and JAMES HOYLE
SMITH of 8 Abbey Street Eccles both in the County of Lancaster Fustian Cutters,
do hereby declare the nature of this invention to be as follows:-
:-
This invention relates to the rollers employed in machines for cutting velvets
and other piled fabrics.
A. great difficulty has been experienced in such machines in keeping the piece of
velvet, or other piled fabrics, evenly stretched from selvage to selvage during the
operation of cutting, as if the rollers are made perfectly cylindrical the velvet or
fabric is liable to become creased, and if they are made slightly convex or barrel
shaped the edges or selvages of the cloth are liable to approach each other, and in
either case the mechanical cutting is seriously interfered with.
Our invention consists in forming the surface of such rollers slightly concave
from end to end which form we have discovered will obviate the above defects and
keep the velvet or other piled fabric flat whilst being cut and in a state of equal
and perfect tension from selvage to selvage.
Dated this 8th day of July 1890.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants.
COMPLETE SPECIFICATION.
An Improvement in Rollers used in Machines for Cutting Velvets
and other Piled Fabrics.
.
We JOHN JAMES MANN of Ordsall Lane Mills Salford and JAMES HOYLE
SMITH of 8 Abbey Grove Eccles both in the County of Lancaster Fustian Cutters,
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 to the rollers employed in machines for cutting velvets
and other piled fabrics, wherein the cloth runs upon or is drawn over rollers, at a
quick speed whilst being cut.
A great difficulty has been experienced in such machines in keeping the piece of
velvet or other piled fabrics evenly stretched from selvage to selvage during the
operation of cutting, as if the rollers are made perfectly cylindrical the velvet or
fabric is liable to become creased, and if they are made slightly convex or barrel
shaped the edges or selvages of the cloth are liable to approach each other, and in
either case the mechanical cutting is seriously interfered with.
Our invention consists in forming the surface of such rollers slightly concave
from end to end, which form we have discovered will obviate the above defects
and keep the velvet or other piled fabric flat, whilst being drawn or moved over the
said rollers and in a state of equal and perfect tension from selvage to selvage
during the cutting operation.
This divergence from the true cylindrical form may be very slight; for example,
in a roller of about seven inches diameter and thirty three inches long the
diminution in diameter at the centre need not be more than one sixteenth of
an inch.

page_text: 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 :-
The use in pile cutting machinery of the class above referred to of rollers made
of decreased diameter at the centre to keep the fabric under operation central, and
flat, whilst being drawn or moved over the said rollers in the machine during the
cutting of the pile.
Dated this 8th day of April 1891.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants.