Improvements in Appliances for Preventing the Twisting of Coloured Yarn in Sizing Machines.
Year: 1894

page_text: Date of Application, 12th July, 1894
Complete Specification Left, 8th Jan., 1895-Accepted, 9th Feb., 1895
PROVISIONAL SPECIFICATION.
Improvements in Appliances for Preventing the Twisting of Coloured
Yarn in Sizing Machines.
We DAVID SMITH of 254 Wensley Street Wensley Fold Blackburn in the
County of Lancaster and JESSE SMITH of 47 Garden Street, Wensley Fold,
Blackburn aforesaid Tape Sizers, do hereby declare the nature of this invention
to be as follows:-
The object of this invention is by a new arrangement of parts to prevent the
twisting of coloured yarns between the squeezing roller (on a sizing machine)
and the split rods. The twisting referred to is caused by the heat of the
cylinders during the time the machine is stopped or running slowly or when
the front beam is being changed.
According to this invention we place or suspend between the squeezing roller
and the large cylinder a rising or falling roller in such a manner that we can
at any time (when required) raise or lower the said roller on to the colored yarns
so as to maintain an equable tension on the yarn.
Dated this 10th day of July 1894.
DAVID
SMITH.
JESSE SMITH.
Improvements in Appliances for Preventing the Twisting of Coloured
Yarn in Sizing Machines.
We DAVID SMITH of 254 Wensley Street, Wensley Fold, Blackburn in the
County of Lancaster and JESSE SMITH of 47 Garden Street, Wensley Fold,
Blackburn aforesaid, Tape Sizers, 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 improvements in tape sizing machines, the object being
by a new arrangement and combination of mechanism, to prevent the twisting of
the coloured yarns, at a point between the squeezing rollers and the split rods, or
between the guide rollers and the big cylinder. The twisting of the coloured
yarns is caused by the heat of the cylinders acting on such yarns, and causing them
to snarl at the time, such yarns are exposed for a longer period to the heat of the
cylinders, as when the machine is stopped, or running slowly, or when the front
beam is being changed.
The invention consists of an arrangement and combination of parts whereby at
such times as the coloured yarns are detremently effected by the heat of the
cylinders, a rising and falling roller is caused to maintain a tension on the coloured
yarn, which effectually prevents twisting or snarling.

page_text: -
Such being the nature and object of our said invention, the following is a
complete description of same, reference being had to the accompanying drawings, in
which
Fig. 1 is a side elevation of part of a tape sizing machine having our improve-
ments applied thereto.
Fig. 2 is an end sectional elevation of Fig. 1.
According to this invention we fix vertical slides or brackets 1, 1 to each side
frame 2 of the machine. In the slides of brackets 1, 1 is carried a rising and
falling roller 3, mounted in brasses or blocks 4, 4. Through each block or brass 4
is a hole 5, and in each hole 5 is received the upper end of a vertical rod 6, 6, on
each of which rods is a collary immediately below the block or brass 4. The lower
ends of the vertical rods 6, 6, are connected to the ends of two levers 8, 8, mounted
on a cross shaft 94 extending from side to side of the machine, and the other ends
of the said levers 8, 8 are provided with counter-balance weights 9, 9. On one
lever 8 is mounted a small pulley or runner 10, resting on the cam surface 11 of a
lever 12, mounted on the stud 13.
The lever 12 is by link 14 connected to the ordinary "stop" or "knocking on
rod 15, by which the machine is started or stopped.
"
The rising and falling roller 3 is placed between the big drying cylinder 16 and-
the squeezing rollers 17. The plain yarns pass in the ordinary manner over the
guide roller 18, under the immersion roller 19, between the squeezing rollers 17,17,
to and over the big cylinder 16. The coloured yarns after leaving the squeezing
rollers pass over the guide rollers 20, 20, under the rising and falling roller 3, to
and over the big cylinder 16.
The machine runs as ordinary, but if it is stopped or caused to run slower by
reason of moving the stop rod 15, the latter by link 14 operates on the levers 12,
the cam surfaces 11 of which acting on the runners 10, raise the weighted ends of
the lever 8, cousequently depressing the opposite ends, and the vertical rods 6
.and their collars 7, so that the roller 3 falls by gravity and puts a greater
tension on the coloured yarns, and prevents their snarling or twisting. When
the machine resumes its normal speed, the stop rod 15 and levers 12 being.
moved in an opposite direction, the weighted levers. 8 raise the roller 3 and
lessen the tension on the coloured yarns.
It will be obvious that the roller can be caused to increase the tension on the
coloured yarns, when ascending, instead of descending as herein described.
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 :-
(1.) In a tape sizing machine, the use and employment of a roller caused to rise
and fall, so as to put greater tension on the coloured threads, when the machine
is stopped or running slower than its nominal speed, for the purpose herein
described, and substantially as illustrated by the annexed drawings.
(2.) The rising and falling roller 3, vertical rods 6, 6, weighted levers 8, 8, cam
levers 12, and stop rod 15, all in combination as and for the purpose herein
described and substantially as illustrated by the annexed drawings.
Dated this 7th day of January 1905.
DAVID SMITH,
JESSE SMITH,
By their Agents, Brierley & Howard,
Penny Bank Chambers, Halifax.