An Improved Stop Motion for Looms.
Year: 1889

page_text: Date of Application, 10th Aug., 1889
Complete Specification Left, 9th May, 1890-Accepted, 14th June. 1890
PROVISIONAL SPECIFICATION.
An Improved Stop Motion for Looms.
I WILLIAM WARRINGTON of Fairfield Mills, Droylsden in the County of Lancaster,
Manager, do hereby declare the nature of this invention to be as follows:-
"
The object of this invention is to enable the weaver to put in
a different weft at certain measured intervals such for instance as the "cross-headings
cross headings" of
or borders at the end of each length in weaving towels, shawls, handkerchiefs and the
like, and the action of the apparatus is first to indicate the length and then to stop the
loom if the weaver does not change the shuttle at the time when the proper length is
indicated.
It has hitherto been customary to attach a cord of the required length to the cloth,
this cord being carried along with the cloth and as soon as the weaving has arrived at
the end of this cord it is known that the proper length has been woven and the weaver
then changed the shuttle and removed and re-attached the cord, but for obvious
reasons this method has proved uncertain in its action and required very close atten-
tion on the weavers part.
According to my invention I fix upon the emery roller shaft a bevil pinion gearing
with a bevil wheel of suitable diameter revolving upon a stud fixed to the frame of the
loom beneath the stop handle.
This bevil gear is so proportioned to the circumference of the emery roller that each
tooth will indicate that (say) one inch of cloth has been taken up.
For example a pinion with sixteen teeth is employed if the emery roller is sixteen
inches in circumference.
At the back (or on the face) of the bevil wheel above named are marks or divisions
corresponding with each tooth and numbered from 0 upwards and opposite to tho
mark 0 on the said wheel I fix or form a projection or incline.
Immediately above this wheel I fix a lever on a short rod or bar which is provided
at its other end with a crank or arm projecting over the "weft fork."
The wheel is capable of being slidden on its stud out of gear with the bevil pinion
and when the first heading or cross border has been woven the wheel being out of gear
is then turned round until the division or mark corresponding with the number of
inches desired to be woven before the next heading or cross border becomes vertical
over the stud and it is then slidden into gear with the pinion.
As the weaving proceeds the bevil wheel revolves bringing up the "zero" point
gradually and just before the mark 0 arrives at the vertical position the weaver
should change the shuttle and moving the wheel out of gear set it back again;
whilst the heading is being woven and then put it in gear and change the shuttle
gain.
If the weaver neglects to do this at the proper moment the projection or incline on
he wheel lifts the lever above named which presses down the weft fork catch into
position to be caught by the vibrating hammer" which immediately stops the
bom so that no more than the proper length can be woven between the two
eadings.
It will be evident that the lever above named may act against the spring handle or
ther stop motion, but I prefer to apply it to the weft fork because when the
vibrating hammer" comes into action the shuttle is always "boxed" and in a proper
osition for changing.

page_text: COMPLETE SPECIFICATION.
An Improved Stop Motion for Looms.
I WILLIAM WARRINGTON of Fairfield Mills Droylsden in the County of Lancaster
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 :-
cross headings of
The object of this invention is to enable the weaver to put in "
a different weft at certain measured intervals such for instance as the "cross headings"
or borders at the end of each length in weaving towels, shawls, handkerchiefs and the
like, and the action of the apparatus is first to indicate the length and then to stop
the loom if the weaver does not change the shuttle at the time when the proper longth
is indicated.
It has hitherto been customary to attach a cord of the required length to the cloth
this cord being carried along with the cloth and as soon as the weaving has arrived at
the end of this cord it is known that the proper length has been woven, and the
weaver then changed the shuttle and removed and re-attached the cord, but for
obvious reasons this method has proved uncertain in its action and required very close
attention on the weaver's part.
My invention will be readily understood on reference to the accompanying sheet of
drawings, and the following description thereof.
Fig. 1. is an elevation of so much of a loom as is necessary to illustrate the appli-
cation of my invention, and Fig. 2 is a plan view of the same, a being part of the
framework, b the emery roller, and c the shaft thereof.
I fix upon the emery roller shaft c a bevil pinion d gearing with a bevil wheel e
of suitable diameter revolving upon a stud ƒ fixed to the frame of the loom beneath
the stop handle g. It will generally be preferable to incline the wheel e as shown at
Fig. 2.
This bevil gear is so proportioned to the circumference of the emery roller & that
each tooth will indicate that (say) one inch of cloth has boon taken up.
For example a pinion d with sixteen teeth is employed if the emery roller b is
sixteen inches in circumference.
At the back (or on the face) of the bevil wheel e above named are marks or
divisions (see Fig. 1.) corresponding with each tooth and numbered from 0
upwards, and opposite to the mark 0 on the said wheel I fix or form a projection
or incline e*.
Immediately above this wheel e I fix a lever on a short rod or bar i which is
provided at its other end with a crank i' or arm projecting over the "weft fork" k.
The wheel e is capable of being slidden on its stud fout of gear with the bevil
pinion and when the first beading or cross border has been woven, the wheel, being
out of gear, is then turned round until the division or mark corresponding with the
number of inches desired to be woven, before the next heading or cross border
becomes vertical or nearly so over the stud and immediately beneath the end of the
lover h and it is then slidden into gear with the pinion d.
The wheel c is locked in gear with the pinion d by a slotted key (see Fig. 1) fitting
into notches or necks in the stud for by other equivalent means.
As the weaving proceeds the bevil wheel e revolves bringing up the "zero" point
gradually and just before the mark 0 arrives at the vertical position or beneath the
end of the lever the weaver should change the shuttle and moving the wheel e ou
of gear set it back again, whilst the heading is being woven and then put in gear and
change the shuttle again."
If the weaver neglects to do this at the proper moment the projection or incline e
of the wheel e lifts the lever h above named which presses down the weft fork catch
into a position to be caught by the vibrating hammer n which immediately stops th
loom in the usual manner so that no more than the proper length can be wove
between the two headings.

page_text: It will be evident that the lever h above named may act against the spring handle
or other stop motion, but I prefer to apply it to the weft fork because when the
vibrating hammer" comes into action the shuttle is always "boxed" and in a proper
position for changing.
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 improved stop-motion substantially as hereinbefore described and illustrated by
the annexed drawings, for automatically stopping the loom when any desired length
of cloth has been woven.
GEORGE DAVIES,
4, St. Ann's Square, Manchester, Agent for the Applicant.