Improvements relating to Take up, Stopping, and Brake Mechanism of Looms.
Year: 1888

page_text: Date of Application, 16th Aug., 1888
Complete Specification Left, 16th May, 1889-Accepted, 20th July, 1889
PROVISIONAL SPECIFICATION.
Improvements relating to Take up, Stopping, and Brake Mechanism
of Looms.
I, SEPTIMUS WHITAKER of Spring-Hill Shed, Burnley, in the County of Lancaster,
Manufacturer do hereby declare the nature of this invention to be as follows:
This invention is designed, that on the absence or breakage of the weft, both the
retaining and actuating catches will be automatically raised out of contact with the
ratchet wheel to apply the recoil; means being also provided that when it is desired
to suddenly stop the loom when the weft is unbroken, the spring handle may be
readily thrown out of its detent, and the weft break, applied without in any way
interfering with the taking-up apparatus. The retaining catch projects under the
actuating catch, so that when the finger lever is actuated by the weft fork lever,
on the absence or breakage of the weft, both the said catches will be simultaneously
raised out of contact with the the ratchet wheel, to allow the recoil and at the
same time apply the break. This arrangement, however, would by itself be
impracticable, as instances frequently occur when the weft is unbroken, when it is
desired to shift the spring-handle from its detent, and to apply the break without
in any way interfering with the recoil. For this purpose, a lever may be mounted
on the stud of the ordinary weft fork lever so as to project under the tricker lever,
and be so arranged, that when it is desired to throw the weft break into action, the
weaver has simply to draw the additional lever from beneath the lip or ledging of
the tricker lever, which now descends and applies the break in the ordinary manner;
the spring-handle being shifted from its detent at the same time by the additional
lever and the loom instantly brought to a state of rest.
Dated this 15th day of August 1888.
THOS. RICHMOND,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements relating to Take up, Stopping, and Brake Mechanism
of Looms.
I, SEPTIMUS WHITAKER of Spring-Hill Shed, Burnley, in the County of Lancaster,
Manufacturer, 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 of improvements is designed for a two-fold object viz. ;-The
automatic recoil of the taking-up motion, on the absence or breakage of the weft;
and to provide means, whereby the weft break may be applied, and the spring-
handle thrown from its detent, to bring the loom to a sudden state of rest, when so
required, without in any way interfering with the taking-up motion.
And in order that my invention may be properly understood, and readily carried
into practical effect, I have hereunto attached the accompanying sheets of drawings,
marked with figures and letters of reference. Sheet 1. Fig. 1 is a plan, and Fig. 2
an elevation, representing mechanism for producing an automatic recoil in the
taking-up motion, on the absence or breakage of the weft; and means by which
the weft break may be applied and the spring-handle shifted from its detent, when
so required, without affecting the recoil of the taking up motion.
Figs. 3. 4. 5 and 6 on the second sheet of drawings represent arrangements of
mechanism for effecting the same purpose.
Figs. 7, 8, and 9 on the third sheet of drawings represent varied forms of

page_text: mechanism, to regulate the amount of recoil in the taking up apparatus, on the
absence or breakage of the weft.
In Figs. 1 and 2, A is the ordinary weft fork lever mounted on stud B, on
which is also mounted lever C. This lever supports the tricker D by lip D', which
rests upon it. On the absence or breakage of the weft, both levers work together,
and are carried forward by the weft stop motion, so as to disengage or withdraw the
lever C from beneath the lip of the tricker D, which, falling, applies the weft break
in the ordinary manner. Simultaneously with this operation, the spring-handle E is
thrown from its detent, and the finger lever F moved, so as to raise both the
retaining and actuating catches out of contact with the ratchet wheel of the taking
up motion.
For this purpose, the retaining catch is made to project under the
actuating catch of the taking up motion, and is so adjusted, that as the finger
lever is actuated by the weft fork lever A, both the said catches will be raised
out of contact with the ratchet wheel, as described in the specification and illustrated
in the drawings of patent granted to me hearing date the 16th day of Novr.
1887 No. 15686, whereby the recoil in the taking up motion is automatically
effected.
When it is desired to stop the loom, when the weft or filling is unbroken, the
weaver has simply to pull forward the lever (by means of the lug C¹, to liberate
the tricker D, to apply the break, and at the same time, and by the same action, to
shift the spring handle E from its detent, bringing the loom to a sudden state of
rest. This operation is effected without affecting the recoil; a recess in the lever (>,
at C2, being formed, so that the said lever, in being drawn forward, cannot affect
the finger F, or the taking up motion.
In the arrangements represented in Figs. 3 and 4, the weft fork lever A is formed
with a recess, within which is mounted on a stud the lever G. When the lever A
is drawn forwards by the weft stop motion on the absence or breakage of the weft,
the tricker D is liberated, and the spring handle E is shifted from its detent, simul-
taneously with the forward movement of the finger lever F, to produce the recoil,
in a similar manner, as described in relation to Figs. 1 and 2.
When the weaver is desirous of stopping the loom suddenly by the weft break,
he depresses the lever G, by grasping in his hand at G' the two levers A and G, so
as to raise the opposite end of the lever G above the top of the finger F, as seen
in dotted lines in Fig. 4.
It will be evident that, as the weft fork lever A is drawn forward by the weaver,
the finger lever F will remain undisturbed, whilst the tricker D) is being liberated
and the spring-handle shifted from its detent, to bring the loom to a sudden state
of rest.
In the arrangement represented in Figs. 5 and 6, I fix to the ordinary weft fork
lever A, stud bracket I, on which is mounted lever J. This lever acts between fork
lever A and finger lever F as a filling piece, whilst the fork lever A is being
moved forwards by the weft stop motion on the absence or breakage of the weft.
With the forward movement of the fork lever, the finger lever is actuated to produce
the recoil, simultaneously with the disengagement of the spring-handle E, and the
liberation of the tricker lever.
To suddenly stop the loom when the weft is unbroken, the weaver disengages the
spring-handle E, which then bears against the end of the lever J, at J', as seen in
dotted line Fig. 6, raising the filling piece from between the finger lever F; and the
weft fork lever A, which may then be drawn forwards to liberate the tricker to
apply the break, and arrest the further movement of the loom, without affecting the
finger lever F, or the recoil.
I will now describe the arrangements of mechanism represented in Figs. 7, 8
and 9, by which the amount of recoil is regulated in the taking up apparatus; when
the retaining and actuating catches are simultaneously and automatically raised, on
the absence or breakage of the weft, by the forward movement of the finger lever.
In Fig. 7 the ratchet wheel M is secured to the change wheel stud, of which is
loosely mounted the lever L having two horizontal and one vertical arm. On the

page_text: vertical arm is pivoted catch N engaging with the teeth of the ratchet wheel M.
Lugs from the horizontal arms N' and N2 project under the loon frame. Before the
recoil, the projecting arm N¹ bears against the underside of the loom frame at O;
but during the recoil, the lever L and catch N are moved backward to the extent
of two teeth, by the ratchet wheel M to the position seen in dotted lines, the lug N'
now bearing against the underside of the framework at P. It will be obvious that
the amount of recoil will be more or less in accordance with the amount of play
allowed between the lugs N¹ and N and the underside of the loom frame.
In Fig. 8 the catch N is mounted on the stud S fixed to the loom frame.
During the recoil, the catch N is moved backwards by the ratchet wheel M, to
the position seen in dotted lines. After the recoil and with the forward movement
of the ratchet wheel M the catch N is caused to slide forward on stud S to the
position it assumed prior to the recoil, and for this purpose the end of the catch N
is sufficiently weighted as to bear upon and be drawn forward by wheel M with
which it is in frictional contact. In this arrangement, the amount of recoil may be
regulated, as desired, by set screw R.
Fig. 9 represents an arrangement in which the amount of recoil is determined by
the quadrant U, which mounted on stud U₁, and is capable of engaging with the
teeth of the ratchet wheel M. Whilst the recoil is inoperative, the quadrant U is in
the position seen in dotted lines, the forward tooth of the quadrant trailing on the
teeth of the ratchet wheel M. During the recoil, the quadrant U is drawn inwards
by the teeth of the ratchet wheel M, until it is arrested by the projecting end of the
quadrant at V engaging with a tooth of the ratchet wheel M.
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 :-
1. The devices hereinbefore described for producing an automatic recoil of the
taking-up motion on the absence or breakage of the weft; and so arranged, that the
weaver may apply the weft break to stop the loom suddenly, without interfering with
the recoil, substantially as described and illustrated.
2. In combination with the said devices, one or other of the arrangements
represented in Figs. 7, 8 and 9. for regulating or determining the amount of recoil.
Dated this 15th day of May 1889.
THOS. RICHMOND,
Agent for the Applicant.