Improvements connected with Take Up Motions for Looms.
Year: 1894

page_text: Date of Application, 29th Nov., 1894
Complete Specification Left, 23rd July, 1895-Accepted, 2nd Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements connected with Take Up Motions for Looms.
RICHARD WILBY Exchange Buildings Marsh Hudder-field Warp Let-off
Motion Maker do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide an improved form of negative or
balance take up motion for that class of looms known as the Hollingworth and
Knowle's which looms are manufactured by the firm of Hutchinson Hollingworth
& Co. Ltd. of Dobcross near Oldham and this invention is for the purpose of
causing the cloth as it is being woven to be wound on to the cloth roller at a more
equable and regular rate than heretofore.
In the construction of apparatus for purposes aforesaid I pivot one end of a lever
in front of and concentric with the ratchet take up wheel so as to be capable of
oscillating thereon, I prefer the said lever being pivoted on an extension of the
boss of said ratchet wheel so that when the lever is actuating the wheel as will be
hereafter described there will be no friction on the axis of this lever. The other
end of this said lever carries a sund on which stud works a pawl capable of
engaging with the teeth of the said ratchet wheel.
As this taking up lever (as I hereafter prefer to call it) is approximately in a
horizontal position and operates the ratchet wheel during its downward stroke,
I employ either a small spring or otherwise a counterweight to keep the pawl in
gear with the teeth of the ratchet wheel. When this lever is lifted the pawl
glides over the teeth of the ratchet wheel, but when said lever is depressed the
pawl engages with the teeth of the ratchet wheel and turns the wheel.
I will now describe the means and methods I employ for giving oscillating
motion to this take up lever. Near to the oscillating end of said lever is pivoted
a hanging lever which latter lever is caused to oscillate on its pivot by a projection
from the slay sword which projection may be integral with the sword or merely
fixed to it. This projection comes against the hanging lever each time the sword
moves backward and thus causes the said lever to oscillate through a given arc at
each pick of the loom.
I cause this motion to be communicated to the take up lever by a short
connecting rod, said rod being coupled to each lever at points below and a little to
the right of their respective axes.
I prefer having a round stud or pap cast or fixed on each lever at these
respective points and a connecting rod with ends to fit on these studs, only I
prefer that that end of the connecting rod which works on the stud on take up
lever shall have a slot in order to cause the take up lever to be practically free
from the hanging lever and connecting rod at all times when the take up lever is
actuating the ratchet wheel.
In front of and near to the oscillating end of the take up lever is cast integral
with the lever or fixed upon it a flat projection or lug provided with a somewhat
oblong hole through which hole a small screw threaded rod passes. This screwed
rod is provided with a small hook or hole at its lower end which is in connection
with the upper end of an ordinary tension spring, the lower end of said spring
A
being securely fastened near to the floor underneath to anything convenient.
wing nut is provided for the screwed rod which nut rests on the lug above described
and through which the screwed rod passes and it will be seen that by turning
the wing nut one way or the other the said spring is tightened or slackened.

page_text: If weights are used instead of a spring for the motive force they can be
suspended from this rod but I prefer the use of a spring because the inertia of
weights retards their motion at the begining of each stroke and their momentum
towards the finish of the stroke lengthens the said stroke.
To serve two purposes 1st of causing the wing nut with its screwed rod and
spring to rock upon its seat and so cause them to preserve the same angle while
the take up lever is oscillating and 2nd of causing the wing nut to be automatically
locked so as to prevent it from screwing or unscrewing by vibration. I provide
the lug on which the wing nut is seated with a small triangular protuberance on a
line along the middle of its upper surface at right angles to the length of the lever
while the bottom surface of the winged nut is provided with a triangular shaped
recess along one of its diameters but about only half the depth as the protuberance
is high. As the screwed rod might partially rotate with the wing nut when the
weaver was turning said nut for the purpose of tightening or slackening the spring
and so cause the weaver to be deceived as to the real amount the spring had been
tightened or slackened I make the screw threaded rod flat on two opposite sides
and I cause the hole in the lng on which the winged nut rests to be of a similar
shape as the section of the rod so that the rod will be prevented from 1otating when
the nut is being turned.
To enable the weaver to lift the actuating pawl and the retaining pawls simul-
taneously with one hand, I fix or cast a small lig on the lower retaining pawl in
which a small hole is bored and in the centre of the end of the ratchet wheel stud
I fix another lug provided with a hole. Also the actuating pawl is provided with
a small lug at the opposite end from its point which lug is provided with a small
hole. Through this hole a suitable cord is passed and a knot is tied at the back of
the lug, the cord is then passed through the lug in stud of take up wheel and
through the lug in retaining pawl where another knot is tied behind the lug so as to
leave about ths of an inch of slack.
By this arrangement the actuating pawl is lifted when the retaining pawl is
lifted and as the middle lug is in the line of centre of the oscillations of the take
up lever no matter how wide the oscillations may be the cord always preserves the
same amount of slackness.
The modus operandi of this take up motion is as follows. When the loom is in
action the projection on the slay sword comes against the arm of the hanging lever
as the sword is moving backward and moves said lever, this motion is communicated
to the take up lever by means of the connecting rod before described thus causing
the take up lever to be lifted and as the slay sword retreats or moves forward the
hanging lever by its own gravity follows the motion of the sword because the slot in
take up lever end of connecting rod allows it to do so at the same time the pawl on
take up lever engages with the teeth of the ratchet wheel and the take up lever
with its spring force is left perfectly free to balance the tension of the cloth
through the intermediate train of take up wheels at the instant of each beat up of
the weft and any slight preponderance in the spring force at the instant of the
beat up causes the ratchet wheel to be turned by the spring while on the other
hand should the spring force not preponderate at the instant of the beat up the
ratchet wheel is not turned at that pick of the loom.
In order to make this take up motion more certain and equable in its action
I cause the spring force to be greatest at the commencement of its active stroke
the time when the inertia of the parts to be moved have to be overcome and least
at the termination of the stroke when the momentum of the moving parts are being
given out. This I accomplish by causing the seat on which the wing nut oscillates
to be on a radius struck from the centre of motion of take up lever which radius
forms an obtuse angle with a line passing through the centre of the spring.
Dated this 29th day of November 1894.

page_text: RICHARD WILBY Exchange Buildings Marsh Huddersfield Warp Let-off
Motion Maker 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 :-
The object of this invention is to provide an improved form or arrangement of
negative take up motion for that class of looms known as the Hollingworth and
Knowle's, and which in a modified form shall also be applicable to other makes and
builds of loom and this improved take up motion is for the purpose of winding the
cloth on to the cloth roller (as it is being woven) at a more equable and regular
rate than heretofore in order that the cloth produced may be more evenly and
uniformly wefted.
In order to assist in the complete understanding of my invention by those
skilled in the art to which it relates, I have annexed hereto a sheet of explanatory
drawings, Figs. 1 and 2, being respectively a front and side elevation of my
improved take up motion.
In the construction of my improved take up motion I pivot a lever 1 Fig. 1 in
front of and on the axial stud 2 of the take up ratchet wheel 3, so as to be capable
of oscillating thereon, the ratchet wheel 3 being in communication with the cloth
roller by the ordinary train of wheel as usual. The lever 1 carries a stud 4 on
which stud works a pawl 5 capable of engaging with the teeth of the ratchet
wheel 3.
As this taking up lever 1 (as I hereafter prefer to call it) is approxi-
mately in a horizontal position and operates the ratchet wheel 3 during its downward
stroke, I employ a small tension spring 6 attached as shewn to keep the pawl 5 in
gear with the teeth of the ratchet wheel 3. I will now describe the means, and
method employ for giving an up and down motion to this lever 1 when the
loom is in action. Near to the oscillating end of said lever 1 I pivot an upright
lever 7, of the shape shewn in Figs. 1, and 2, which lever 7 is caused to oscillate on
its axis 7 by a projection 8 from the slay sword, which projection is preferably
fixed to the sword so as to be capable of being raised, or lowered in the ordinary
manner for the purpose of lengthening, or shortening the stroke. This projection 8
comes against the upright lever 7 each time the sword moves backward, and
On
causes said lever to oscillate through a given arc at each pick of the loom.
the upper arm of this lever 7 are cast or fixed a couple of studs 7' 7" as shewn
in Fig. 1, and on the upright arm 1' of the taking up lever 1 is cast a similar
stud 9. A short connecting rod 10 working on these studs communicates the
motion of the hanging lever 7 to the take up lever 1. I employ two studs on the
lever 7 in order that the stroke of the take up lever I may be long or sho.t to
suit the fabrics being woven. The connecting rod 10 is provided with a slot 11
at one end instead of a bole. This is for the purpose of causing the take up
lever to be practically free from, and untrammelled by the lever 7, and con-
necting rod 10, at that time of each pick of the loom when the said take up lever 1
is actuating the ratchet wheel 3. In front of the take up lever 1 are cast integral
with it, or fixed upon it a couple of flat projections or lugs 12, 12, that are
provided each with a slot, through one of which slots a small screw threaded
rod 13 passes. This screwed rod 13 is provided with a small hole or hook at its
lower end which is in connection with the upper end of an ordinary tension
spring 14, the lower end of said spring can be connected to anything convenient
near to the floor, but I prefer the said spring being coupled to a bracket 15,
provided with three or four holes, into one of which the spring 14 hooks, said
bracket 15 being fixed by set screw, or other means on to the projecting axis 16

page_text: of the slay sword, which fixture gives a downward motion to the free end of the
bracket 15 as the slay moves towards the fell of the cloth causing the spring 14
to be at its greatest tension at the instant of the beat up of the weft, which has
the effect of causing the ratchet wheel 3 to be operated at the instant of the beat
up when weaving medium, and light fabrics, thus ensuring the beating in of the
weft having a share in the taking up of the cloth. The spring 14 being tightest
at the beat up, also has the good effect of causing the cloth not to be taken up
and so produce a thin place when the weaver happens to move the siay backward
and forward while finding, and piecing broken warp threads. A wing nut 17 is
provided for the screwed rod 13, which nut rests on one of the lugs 12, and
through which lug the screwed rod passes as shewn in Figs. 1 and 2. By turning
this nut 17 one way or the other, the spring 14 is slackened or tightened so as to
give more or less picks to the fabricks woven. To serve two purposes 1st of
causing the wing nut 17 with its screwed rod 13 and spring 14 to be capable of
ocking freely upon the seat 12 as the take up lever 1 oscillates in its circular are
and 2nd of causing the wing nut 17 to be always automatically locked for the
purpose of preventing it from screwing or unscrewing by the vibrations of the
loom I provide the lugs 12 with small triangular shaped grooves 18 and I make
the lower part of the wing nut triangular in shape. Or I might have the groove
in the bottom of the nut, and make the triangular ridge along the top of the
lugs 12, which would serve the same purposes, but I prefer the former method
shewn in Fig. 1.
As the screwed rod 13 might partially rotate with the wing nut 17 when the
weaver was turning said nut for the purpose of tightening or slackening the
spring 14, and so deceive the weaver as to the exact amount the spring had been
tightened or slackened, I make the screw threaded rod 13 flat on two opposite
sides as shewn in Fig. 1, and I make slot holes in the lugs 12 narrow enough to
prevent the screwed rod 13 from rotating, and long enough to allow for the
angular movement of rod in hole which is caused by the motion of the lever 1
being a radial motion. The flattening of the rod 13 also prevents injury to its
thread in working.
To enable the weaver to lift the actuating pawl 5, and the detaining pawls 19
out of gear simultaneously with one hand, so as to leave the other hand free to
operate the ratchet wheel 3 when he or she has occasion to let slack, I fix or cast a
small lug 20 on one of the detaining pawls 19, which lug 20 is provided with a small
hole, and in the centre of the end of the ratchet wheel stud 21 fix another lug 22
provided with a hole. Also the actuating pawl 5 is provided with a small lug 51 at
the opposite end from its point which is provided with a hole. The lug 5' 18
connected with the lug 20 by a thin cord 21 which is made to pass through the
lug 22.
When the detaining pawls 19 are lifted the cord acts upon the actuating
pawl and pulls it out of gear als, and as the middle lug 22 is purposely fixed in
the line of centre of motion of take up lever 1, the motion of pawl 5 does not
slacken and tighten the cord and so cause the cord to interfere with the proper
working of pawl 5.
The modus operands of this improved form of take up motion is as follows:-
When the loom is in action the projection 8 on the slay sword comes against
the aim of lever 7, and carries it with it as the sword is moving backward, this
motion is communicated to the take up lever 1 by means of the connecting rod 10,
thus causing the take up lever I with its paul 5 to be lifted, and as the slay
sword moves forward, the hanging lever 7 by its own gravity follows the return
motion of the sword, the slot 11 in connecting rod 10 allowing it to do so, which
leaves the take up lever with its spring force acting on the ratchet wheel 3 by
the pawl 5 perfectly free to balance the tension of the cloth through the intel-
mediate train of wheels, and any slight preponderance in the spring force over the
tension on the cloth at the instant of the beat up of the weft, causes the ratchet
wheel 3 to be turned more or less at that pick of the loom, while on the other
band, should the spring force not preponderate over the tension on the cloth at

page_text: the instant of the beat up, the ratchet wheel 3 will not be actuated at that pick of
the loom.
In order to ensure that this take up motion shall act equably, and uniformly in
the taking up of the cloth, I cause the leverage with which the spring 14 acts
upon the take up lever 1 to be greatest at the commencement of its turning
troke, (which is the instant when the inertia of the parts to be moved by the
spring have to be overcome) and the said spring leverage to be least at the
termination of its turning stroke (which is the time when the momenta of
the moving parts are being given out). This diminishing leverage of the spring 14
I accomplish by causing the position of the lugs 12 12 to be on a radius struck
from the centre of take up lever 1, which radius forms an obtuse angle with the
spring rod 13 and spring 14. The more the ratchet wheel turns at one stroke,
the more obtuse this angle becomes, and the less becomes the effective leverage of
the spring 14 to turn the ratchet wheel 3, which has a tendency to cause uniformity
in the lengths of the strokes of take up lever. This diminution of the spring
leverage on take up lever as the stroke lengthens, has also the good effect of
requiring the spring 14 to tightened less frequently, while the cloth roller is filling.
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 :-
:-
1st. In a take up motion for looms the use in combination therewith of the
slot 11 in counecting rod 10 Fig. 1 said slot being used for the purpose of causing
the taking up lever 1 to be practically free from and untrammelled by the hanging
lever 7 and connecting rod 10 when take up lever 1 is actuating ratchet wheel 3
substantially as herein described and shewn."
2nd. In a take up motion for looms the use in combination therewith of a lug
or lugs 12 Fig. 1 provided with a slot and groove which are at right angles to each
other said slot and groove being respectively used for purposes substantially as
herein described and shewn.
3rd. In a take up motion for looms the use in combination therewith of a
tightening arrangement for the taking up spring 14 consisting of a screw threaded
red 13 flattened on two opposite sides for purposes herein described, and provided
with a wing nut or thumb screw whose bottom part is V shaped as shewn for
purposes as herein described and shewn.
4th. In a take up motion for looms the use in combination therewith of the
guide lug 22 Figs. 1 & 2 said guide lug being purposely placed in or near the line
of centre of motion of take up lever 1 for purposes substantially as herein described
and shewn.
5th. In a take up motion the general arrangement construction and combination
of parts as herein set forth and illustrated by the drawings in Figs. 1 & 2.
Dated this 22nd day of July 1895
RICHARD WILBY.