Improvements in Warp Stop Motions for Looms for Weaving.
Year: 1897

page_text: Date of Application, 8th Sept., 1897
Complete Specification Left, 8th July, 1898-Accepted, 3rd Sept., 1898
PROVISIONAL SPECIFICATION.
Improvements in Warp Stop Motions for Looms for Weaving.
We, RICHARD LONGDEN HATTERSLEY, of North Brook Works, Keighley, in the
County of York, Machine Maker, and SIMEON JACKSON, of the same address,
Manager, do hereby declare the nature of this invention to be as follows:-
This invention relates to looms for weaving, and consists of an arrangement,
whereby the loom is automatically stopped, when one, or more, warp threads
break.
Briefly, our invention consists of an arrangement, whereby the warp threads
are operated upon by a current of air, and in case that a warp thread is broken, it
is disengaged from the other warp threads, and raised or lowered, so that it engages
with a roller, which is placed transversely, and in close proximity to, the warp
threads. This roller or, if necessary, we may employ two or more, receives motion
from any convenient motor part of the loom, and is so arranged, that when a warp
thread engages with the same, it immédiately indicates, by means of lightly con-
structed mechanism, for the stoppage of the loom.
Instead of the before-described arrangement, we have an alternative method,
that is, we mount parallel with the said roller a wire, which, when a warp thread
engages, by means of the before-mentioned current of air with the roller, indicates
in like manner for the stoppage of the loom.
The current of air may be generated as follows:-Parallel with the before-
mentioned roller, we place an air-tube, into which we inject, at determined intervals,
a current of air by means of fans, bellows, pump or other like mechanism. The
tube is perforated along its surface, and thus when a warp thread breaks, it is
operated upon by the current of air. Instead of injecting the current into the tube,
we can mount loosely inside the said air-tube a roller, from which we project, at
any angle, one or more pieces of cloth, or of other like fabric; this roller is rotated
and thus produces the current required. Or the said roller may be mounted to
repiace the air-tube instead of being mounted inside same.
DAL 1. of Contrba 1907
RICHD. L. HATTERSLEY;
SIMEON JACKSON,
Applicants.
Improvements in Warp-stop Motions for Looms for Weaving.
We, RICHARD LONGDEN HATTERSLEY, of North Brook Works, Keighley, in the
County of York, Machine Maker, and SIMEON JACKSON, of the same address,
[Price 8d.]

page_text: Manager, 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 looms for weaving, and consists of an arrangement
whereby the loom is automatically stopped, when one, or more, warp threads
break.
Briefly, our invention consists of an arrangement, whereby the warp threads
are operated upon by a current of air, and in case that a warp thread is broken, it
is disengaged from the other warp threads, and raised or lowered so that it engages
with a roller, which is placed transversely and in close proximity to the warp
threads. This roller, or if necessary we may employ two or more, receives motion
from any convenient motor part of the loom, and is so arranged that when a warp
thread engages with the same, it immediately indicates by means of lightly con-
structed mechanism for the stoppage of the loom.
The current of air may be generated as follows:-Parallel with the before-
mentioned roller, we place an air-tube into which we force, at determined intervals,
a current of air by means of fans, bellows, pump or other like mechanism. The tube
Is perforated along its surface, and thus when a warp-thread breaks, it is operated
upon by a current of air.
Instead of foroing a current into the tube, we can mount loosely inside the
said air-tube a roller, from which we project at any angle, one or more pieces of
cloth or of other like fabric, this roller is rotated and thus produces the current
required. Or the said roller may be mounted to replace the air-tube instead of
being mounted inside same.
In order to explain more clearly our invention, we append hereto sheets of
drawings marked with figures of reference, in which like figures denote like parts.
Fig. 1 is a front view.
Figs. 2 & 3 are end views.
Figs. 4, 5 and 6 are views hereinafter referred to.
In this, our invention, the warp-threads pass over the bearer 2 and into the loom
in the ordinary manner. On the underside of the warp-threads, we mount a tube 3
into which we force a current of air at the point 4 by the aid of bellows, pump or
other like mechanism.
The tube 3 is perforated along its upper surface, and thus when a warp-thread
breaks, it is operated upon by the current of air, and engages with the revolving
roller 5, and the latter is arranged as hereinafter explained, so that when this
engagement takes place, it indicates for the stoppage of the loom.
The construction and arrangement of the roller 5 and mechanism connected
with same, to which we make no claim, is as follows:-
The roller 5 is covered with wire cloth, and is supported at one end by its
gudgeon 6 resting in the stand 7, and at the other end it is mounted loosely on the
shaft 8. The shaft 8 is connected with the incline or snail 9, and the latter is
designed so that when the roller 5 is free, it revolves with same, the anti-friction
bowi 10 which is connected to the said roller 5 resting at the bottom of the incline 9,
but when the roller is held by a warp thread, it is moved longitudinally by the
incline 9. The incline 9 receives its motion from any motor part of the loom, by
the wheels 11 & 12 and shaft 13.
When the roller is moved longitudinally it engages with a catch 14, the latter
assists to prevent the roller from rotating and at the same time receives a backward
motion, it is mounted on the stud 15 as also the piece 16, which thus also receives
the backward movement and transfers the same to the ordinary knocking-off, or
stopping motion, of the loom, by its arm 17. On the piece 16 is pivoted a stud 18
on which is loosely mounted, the drop-piece 19, which, when the catch 14 is pushed
back, drops behind the spring 20, and thus keeps steady the longitudinal movement
of the roller 5.
To the piece 16 is also attached another arm 21, to which is attached the weight 22
for the purpose of bringing back to their normal positions the catch 14 and piece 16.

page_text: It will be seen that the position of the catch 14 is regulated by the screw 23, also
that when the piece 16 is pushed, the spring 20 is also pushed back by means of the
pin 24 attached to the piece 16.
Thus at the
When the roller 5 is in its normal position the drop-piece 19 held clear of the
spring 20 by the pin 28, attached to the stand 7 which is in contact with
the indent 29 of the drop-piece 19 & raises the projection 30 of same.
moment when a broken warp-thread comes in contact with the roller 5 there is
only the pressure of the spring 20 on the roller but when the roller comes in con-
tact with the catch 14 the drop-piece 19 is released from the pin 28 & holds the
spring rigid for the remainder of the longitudinal movement of the roller & also
in like manner assists the said spring 20 when after the motion has been imparted
it returns the roller 5 to its normal position.
Instead of forcing the air into the tube, we may prefer to use the arrangement
shown in Figure 6: this is a roller 25 mounted in a tube 26 with strips of cloth 27,
or like fabric, attached, which is revolved from any motor part of the loom, and
thus generates a current of air. Or the current may be generated by the said
roller 25 with strips attached without the tube 26.
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 stopping of the loom when a warp thread breaks by the use of a current of
air generated as above described, or in any other well known manner.
COL
чить
DAIRCE
RICHD. L. HATTERSLEY,
SIMEON JACKSON,
Applicants.
RICHD. L. HATTERSLEY,
SIMEON JACKSON,
Applicants.