Improvements in the Chains of Tentering, Printing, Stretching, and other Machines.
Year: 1892

page_text: Date of Application, 19th Nov., 1892
Complete Specification Left, 2nd Aug., 1893-Accepted, 2nd Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Chains of Tentering, Printing, Stretching, and
other Machines.
I, WILLIAM WESTWELL of 8 Norfolk Street, Accrington, in the County of
Lancaster, Calico Machine Printer, do hereby declare the nature of this invention
to be as follows:-
:-
This invention relates to improvements in the chains of tentering, printing,
stretching, and other carrying or guiding machines or frames, whereby the edges
of the cloth, woollen, or other piece goods or paper are to be held whilst passing
through machines or frames as aforesaid, the object being to automatically lay hold
of, and nip the edges or selvage of the material under operation, and to auto-
matically release same when desired.
According to this invention each link of the chains comprises two nipping jaws,
one of which is fixed, the other being hinged. The hinged jaw has a curved or
straight finger or projection cast to it and by passing the chains under or over a
fixed projection or runner applied to the machine or frame at the point required,
the jaws are opened or closed. If the links of the chain pass under the fixed
projection or runner the jaw is turned on its hinge and moves away from the fixed
jaw. And if over the fixed projection or runner the moveable jaw is brought into
contact with the fixed jaw and the cloth or other material is securely held between
said jaws.
The fixed jaw is made with an inclined nipping surface which allows the hinged.
jaw only a limited amount of movement or the fixed jaw may be straight or
slightly curved and the face of the hinged jaw made preferably curved so as to
hold the material between the jaws but not to prevent the hinged jaw swinging to
either side of its centre.
The pull on the material held by the two chains tends to tighten the hold of
each link, the moveable jaw being the more closely wedged against the inclined
fixed jaw.
Each link is hinged either at its upper or lower edge to the next succeeding
links.
WALTER BRIERLEY,
Penny Bank Chambers, Halifax, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Chains of Tentering, Printing, Stretching, and
other Machines.
I, WILLIAM WESTWELL of 8 Norfolk Street, Accrington, in the County of
Lancaster, Calico Machine Printer, 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 the chains of tentering, printing,
stretching, and other carrying or guiding machines or frames, whereby the edges
of the cloth, woollen, or other piece goods or paper, are to be held whilst passing
through machines or frames as aforesaid, the object being to automatically lay
hold of, and nip the edges or selvage of the material under operation, and to
automatically release same when desired.

page_text: According to this invention, each link of the chains comprises two nipping jaws,
one of which is fixed, the other being hinged. The hinged jaw has a curved or
straight finger or projection cast to it, and by passing chains under or over a fixed
projection or runner applied to the machine or frame at the point required, the
jaws are opened or closed. If the links of the chain pass under the fixed projection
or runner, the jaw is turned on its hinge and moves away from the fixed jaw; and
if over the fixed projection or runner, the moveable jaw is brought into contact
with the fixed jaw and the cloth or other material is securely held between
said jaws.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had to the accompanying drawings,
in which :-
Fig. 1 is a plan view of two links of the improved chain for purpose aforesaid.
Fig. 2 is a side or front elevation of Fig. 1.
Fig. 3 is an end elevation of one of the links shewn closed and nipping and
holding the edge of a piece.
Fig. 4 is a similar view to Fig. 3 but shewn open, the moveable jaw being
turned on its hinge by the finger passing over the fixed projection or runner.
Fig. 5 is an end elevation of part of a link shewing the moveable jaw made
curved and the finger or projection straight.
According to this invention, each link 1 of the chains comprises two nipping
jaws, one jaw 2 of which is fixed, the other jaw 3 being hinged and free to turn on
the pin 4. The hinged jaw 3 has a curved or straight finger or projection 5 cast
to it, and by passing chains composed of such links 1 under or over a fixed pro-
jection or runner 6 (see Fig. 4) applied to the machine or frame at the point
required, the jaws 2. 3 are opened or closed. If the links of the chain pass under
the fixed projection or runner 6, the jaw 3 is turned on its hinge or pin 4 and
moves away from the fixed jaw 2 (see Fig. 4); and if over the fixed projection or
runner 6, the moveable jaw 2 is brought into contact with the fixed jaw 3 and the
cloth or other material 7 is securely held between said jaws 2. 3 (see Fig. 3).
The fixed jaw 2 is made with a slightly inclined nipping surface (see Figs. 3
and 4) which allows the hinged jaw 3 only a limited amount of movement, or the
fixed jaw 2 may be straight or slightly curved, and the face of the hinged jaw 3
made preferably curved (see Fig. 5) so as to hold the material 7 between the
jaws 2. 3, but not to prevent the hinged jaw 3 swinging to either side of its
centre.
The pull on the material 7 held by the chains tends to tighten the hold of each
link 1, the moveable jaw 3 being the more closely wedged against the inclined fixed
jaw 2.
Each link is hinged either at its upper or lower edge to the next succeeding links
by such pin as 8.
Having now particularly described and ascertained the nature and object of my
said invention, and in what manner the same is to be performed, I declare that
what I claim is :-
The fixed and moveable jaws 2. 3, the moveable jaw 3 having a straight or
curved finger or projection 5, all in combination, and operated and operating in the
manner herein described, and as illustrated by the annexed drawings.
Duted this 18th day of July 1902
WILLIAM WESTWELL,
By his Agent, Walter Brierley,
Penny Bank Chambers, Waterhouse Street, Halifax.