IMPROVEMENTS APPLICABLE TO THE TAKING UP MOTION OF LOOMS FOR WEAVING
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
"
I GEORGE WOOD RHODES of Mersey Mills Hadfield in the County of Derby
Cotton Spinner and Manufacturer do hereby declare the nature of my invention
for IMPROVEMENTS APPLICABLE TO THE TAKING UP MOTION OF LOOMS FOR
WEAVING to be as follows:-
This invention relates to that part of the loom known as the "taking up"
motion.
When weaving with the ordinary loom if the weft breaks or the shuttle becomes
empty, the weft "fork motion" throws the driving strap of the loom onto the loose
pulley, but the loom runs on for a few picks without weft, before the weft fork
motion comes into action, and as the taking up motion works with the rest of the
mechanism when the weft begins to be thrown in again a "crack" or space is left
across the cloth which is moved by the said taking up motion beyond the reach of
the "beat up" of the reed.
This may however be obviated by the weaver if
of the trigger from the taking up ratchet wheel.
form a too closely woven bar across the cloth if he
many picks before replacing the catch.
he lifts the top catch by means
But in so doing he is liable to
allows the loom to put in too
"
The object of my invention is to prevent the formation of these "cracks" or
"bars" by simple and automatic mechanism which is constructed and operates in
the following manner.
At the side of the loom opposite to the side of the taking up motion I mount in
place of the trigger a lever fastened on to the end of a rod, passing across the loom
and on the other end of this rod the ordinary retaining catch of the taking up
motion, but dispense with the trigger altogether. The above lever is provided at
its end with a projection which is acted upon by an inclined plane formed in or on
a ratchet quadrant or a sliding rack. This quadrant or rack is made plain at one
end and is so weighted that it has always a tendency to move or slide in one
direction, but is prevented from so doing by a catch forming part of a lever pivotted
in a convenient bracket on the loom side. This catch lever is prolonged and
provided with a projection which passes immediately beneath a catch upon a lever
similar to the "pusher" and "monkey tail" of a taking up motion on the other
side of the loom, and actuated by a projection from the adjacent lathe sword in a
similar manner.

page_text: When the loom is weaving this catch which for the sake of illustration I will
call the "second" pusher works upon the plain part of the quadrant or rack but
when the loom is stopped by the weft breaking and causing the weft fork lever to
stop the loom in the usual way, it is lifted by the projection on the catch lever
before named which allows the quadrant or rack to be moved back for a certain
distance (which distance is regulated by an adjustable stop) as the quadrant or
rack moves.
The inclined plane before mentioned lifts the lever on the rod which carries the
catch of the taking up motion and thus instantly stops the taking up of the
cloth.
The catch lever and the second pusher are replaced when the loom is started
again by their own weight on being released by the lifting up of the break rod and
returns the quadrant or rack to its original position tooth by tooth, and as the
inclined plane forms part of the latter the catch of the taking up motion is allowed
to fall into position again after a certain number of picks have been made, this
number varying according to the number of teeth allowed to pass beneath the
second pusher or in other words according to the position of the adjustable stop
above named. The lifting of the catch lever and second pusher may be effected by
a collar or projection on the break rod which is weighted for this purpose and
when released by the weft fork lever pushes down the other end of the said catch
lever. In looms where it is desirable to have the break independent of this
improved taking up apparatus I dispense with the break rod and the collar or
projection thereon and simply hang a weight on the ordinary bell crank lever
which worked it, and the falling of this weight will lift the catch lever.
The break lever I connect by a chain passing over a pulley to the ordinary
setting on rod which is cranked for that purpose.
'
Or the said catch lever may be in the form of a bell crank and its other end may
be pushed back by a projection from the weft fork lover itself, the break lever in
this case being worked as usual.
A modification of my invention without departing from the essential features
thereof 'may be constructed by dispensing with the catch lever and mounting the
sliding rack upon a lever which rests on the collar or projection of the break rod
and can be lowered until the rack is out of reach of the catches and can slide back
as before.
The retaining catch is then a simple one pivotted to the loom side instend of
being a lever and it as well as the second pusher will be prevented by stops from
following the rack as it is lowered,

page_text: OFECIFICATION.
I GEORGE WOOD RHODES of Mersey Mills Hadfield in the County of Derby
Cotton Spinnor and Manufacturer do hereby declare the nature of my invention
for "IMPROVEMENTS APPLICABLE TO THE TAKING UP MOTION OF LOOMS FOR
WEAVING and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
נן
This invention relates to that part of a loom known as the taking up motion.
When weaving with the ordinary loom if the weft breaks or the shuttle becomes
empty the weft fork motion throws the driving strap of the loom onto the loose
pulley, but the loom runs on for a few picks without weft, before the weft fork
motion, actually stops the loom, and as the "taking up motion" works with the
rest of the mechanism when the weft begins to be thrown in again, a "Crack" or
space is left across the cloth which is moved by the said taking up motion beyond
the reach of the "beat up " of the reed.
This may however be obviated by the weaver if he lifts the top catch by means
of the trigger from the taking up ratchot wheel. But in so doing he is liable to
form a too closely woven bar across the cloth if he allows the loom to put in too
many picks before replacing the catch.
EE
The object of my invention is to prevent the formation of these "cracks" or
bars" by simple and automatic mechanism which will be readily understood on
reference to the accompanying two sheets of drawings and the following explanation
thereof.
Fig 1 Sheet 1 is a side elevation of so much of a power loom as is necessary to
illustrate my invention, and Figs 2 and 3 are modifications thereof heroinafter
referred to.
Figs 4 and 5 Sheet 2 are side views of further modifications.
a, a is part of the framing of the loom b, b the crank shaft and c, c one of the,
fly wheels.
At the side of the loom opposite to the side of the taking up motion I mount in
place of the trigger a lever d, d fastened on to the end of the rod e, e passing across
the loom and on the other end of this rod is the ordinary retaining catch of tho
taking up motion but I dispense with the trigger altogether.
The above lever d, d is provided at its end with a projection f which is acted
upon by an inclined plane formned in or on a ratchet quadrant g, g or a sliding
rack,
This quadrant g, g (or rack) is made plain at one end and is so weighted that
it has always a tendency to move or slide in one direction, but is prevented from
so doing by a catch h, h forming part of or attached to a lever i, i pivotted in a
convenient bracket on the loom side.
This catch lever i, i is prolonged and provided with a projection which passes
immediately beneath a catch k, k upon a lever l, similar to the "pusher" and
"monkey tail" of the taking up motion on the other side of the loom, and actuated
by a projection from the adjacent lathe sword in a similar manner.
When the loom is weaving this catch k,k (which for the sake of illustration I
will call the second pusher ") works upon the plain part of the quadrant or rack g, g
but when the loom is stopped by the weft breaking and causing the weft fork lever
to stop the loom in the usual way, it is lifted by the projection on the catch lever ¿, i

page_text: before named which allows the quadrant or rack g g to be moved back for a certain
distance (which distance is regulated by an adjustable stop *) as the quadrant or
rack moves.
The inclined plane before mentioned lifts the lever d, d on the rod, e, e which
carries the catch of the taking up motion and thus instantly stops the taking up of
the cloth.
Instead of the inclined plane above referred to I sometimes fix a pin or stud_m
on the side of the quadrant or rack g, g (as shown at Fig 2) which will produce the
same effect.
The catch lever i, i and the second pusher, k, k are replaced when the loom is
started again by their own weight on being released by the lifting up of the break
rod n, n and return the quadrant or rack g g to its original position, tooth by tooth
and as the inclined plane forms part of the latter the catch of the taking up motion
is allowed to fall into position again after a certain number of picks have been
made, this number varying according to the number of teeth allowed to pass
beneath the second pusher k, kc or in other words according to the position of the
adjustable stop * above named.
"
The lifting of the catch lever i, i and second pusher k, k may be effected by a
projection or weight'o, o on the break rod n, n which when released by the weft
fork lever p, puanes down the other end of the said catch lever i, i.
In looms where it is desirable to have the break independent of this improved
taking up apparatus I dispense with the break rod n, n and the projection thereon
and simply hang a weight o¹, o' on the ordinary bell crank lever to which the said
rod was attached and the falling of this weight will lift the catch lever i, i (seo
Fig. 3).
"In this case I connect the break lever by a chain q, q passing over a pulley to
the ordinary setting on rod r, r which is cranked for that purpose.
Or the said catch lever may be in the form of a bell crank i¹ i' (see Fig. 4) and
its other end may be pushed back by a projection 8, s from the weft fork lever p, p
itself, the break lever in this case being worked as usual.
A modification of my invention without departing from the essential features
thereof (see Fig. 5) may be constructed by dispensing with the catch lever i, i and
mounting the sliding rack g', g' upon a lever t, t which rests on the collar or
projection o, o of the break rod n, n and can be lowered until the rack g', g² is out
of reach of the catches and can slide back as before.
The retaining catch h¹, h¹ is then a simple one pivotted to the loom side instead
of being a lever and it, as well as the second pusher k, k will be prevented by the
stops from following the rack as it is lowered.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed I declare that what
I claim is
The combination with the taking-up motion of a loom for weaving of an
oscillating quadrant or a sliding rack (partly toothed and partly plain) provided
with an inclined plane or projection for automatically actuating a lever, which is
used in place of the ordinary trigger for lifting the taking up catch when the weft
thread breaks or is otherwise absent from the shed of the warp, substantially as
hereinbefore more particularly described and illustrated by the drawing annexed.