An Improvement in Apparatus for Cutting Piled Fabrics.
Year: 1890

page_text: Date of Application, 15th July, 1890
Complete Specification Left, 15th Apr.. 1891-Accepted, 16th May, 1391
PROVISIONAL SPECIFICATION.
An Improvement in Apparatus for Cutting Piled Fabrics.
I JOHN JAMES MANN of Ordsall Lane Mills Salford in the County of Lan-
caster Fustian Cutter, do hereby declare the nature of this invention to be as
follows:-
This invention relates to that class of apparatus for cutting piled fabrics wherein
the fabric is held at both ends of the machine in tightening rollers and is carried
past the knife or knives (which is or are held either automatically or by hand) by
means of a travelling carriage fitted with rollers.
It is found by experience that the rapid reversal of the motion of the travelling
carriage at each end of its stroke has a tendency to put too sudden a strain upon
the fabric which is hence liable to be torn at or near the tightening rollers and it is
to obviate this defect that the present invention is designed.
For this purpose instead of mounting the axes of these rollers in bearings which
are rigidly fixed to the frame I mount the same in plummer blocks which are so
fitted as to be capable of sliding a short distance horizontally thereon and I provide
such plummer blocks with strong springs so that when the strain is suddenly brought
onto the fabric and upon the tightening rollers by the reversal of the motion of the
carriage, the plummer blocks can give way slightly so as to prevent the tearing of
the fabric but will immediately be brought back to their original position by the
action of the springs, so that the tension of the cloth is only slightly and momen-
tarily relaxed just at the time of the sudden reversal of the movement of the
carriage and undue strain upon the cloth or the rollers is thus prevented.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improvement in Apparatus for Cutting Piled Fabrics.
1 JOHN JAMES MANN of Ordsall Lane Mills Salford in the County of Lan-
caster Fustian Cutter 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 that class of apparatus for cutting piled fabrics wherein
the fabric is held at both ends of the machine in tightening rollers, that is rollers
provided with narrow longitudinal slits or slots through which the fabric passes
and is carried past the knife or knives (which is or are held either automatically or
by hand) by means of a travelling carriage fitted with rollers, and my invention is
especially applicable to the machines forming the subject of Letters Patent
No. 16996 dated the 10th day of December 1887 and granted to James Hoyle
Smith, Andrew Goddard, Lloyd Higginbottom and Thomas Mannock, and
No. 16509 dated the 19th day of October 1889 granted to myself.
It is found by experience that the rapid reversal of the motion of the travelling
carriage at each end of its stroke has a tendency to put too sudden and severe a
strain upon the fabric which is hence liable to be torn at or near the tightening
rollers and it is to obviate this defect that the present invention is designed and in
order that the same may be clearly understood I have annexed hereunto a sheet of
illustrative drawings marked with figures and letters of reference corresponding
with those in the following description thereof.

page_text: My invention being applied without alteration to the tightening rollers marked B
and B on the drawings accompanying the Specification of the Letters Patent
No. 1699687 above referred to I have merely shown on the present drawings
detached views of the end of the said tightening roller and its bearings.
Fig. 1 is a front view and Fig. 2 a side elevation (partly in section) showing part
of one of the tightening rollers B and one end of its bearings. Fig. 3 is an eleva-
tion of the bearing the tightening roller being removed and indicated by dotted
lines, and Fig. 4 is an elevation of a modification of my invention.
Instead of mounting the axes of the tightening roller B in bearings which are
rigidly fixed to the frame A I mount the same in plummer blocks or bearings c
which are so fitted as to be capable of sliding a short distance and I provide such
plummer blocks or bearings c with strong springs d so that when the strain is
suddenly brought onto the fabric and upon the tightening roller B by the reversal
of the motion of the carriage the plummer blocks or bearings c can give way slightly
so as to prevent, the tearing of the fabric but will immediately be brought back
into their original position by the action of the springs d so that the tension of the
cloth is only slightly and momentarily relaxed just at the time of the sudden
reversal of the movement of the carriage and undue strain upon the cloth or the
rollers is prevented.
In the arrangement shown on Figs. 1. 2. and 3 the bearing c is mounted on
two vertical pivots e and e' in order to allow a slight amount of play to the
tightening roller B if one edge of the fabric should be stretched more tightly than
the other.
These pivots e and e' are attached to a tubular slide f working on a smaller tube g
which is affixed by its flange g' to the frame A.
In the modification shown at Fig. 4 the bearing c slides in a slot / formed in a
bracket also fixed to the frame; and I would here remark that various other
modifications of the details may be made without departing from the distinctive
feature of my invention.
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 apparatus of the class herein before referred to for cutting piled fabrics the
combination with the axes of the tightening rollers of spring bearings constructed
and arranged substantially in the manner and for the purpose hereinbefore set forth
and described.
Dated thi 141 1
Ր A
$1100
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.