Means for Disconnecting the Taking-up Motion of Power Looms when the Weft Breaks.
Year: 1892

page_text: Date of Application, 12th Nov., 1892
Complete Specification Left, 14th Aug., 1893-Accepted, 16th Sept., 1893
PROVISIONAL SPECIFICATION.
Means for Disconnecting the Taking-up Motion of Power Looms
when the Weft Breaks.
I, ALBERT EDWARD WALKER, of Norwood Green Mill, near Halifax, in the
County of York, Manufacturer, do hereby declare the nature of this invention to
be as follows:-
:-
The object of my invention is to prevent weaving thin or uneven places when
finding the pick, and this I accomplish by temporarily holding the setting-up catch
clear of the teeth of the taking-up wheel. To effect this purpose I attach a
retaining catch onto the mechanism connected with the lifting-up catch, so that
when the knocking-off arm is operated by the weft fork on the loom stopping, it
causes the retaining catch to be caught in a slot formed in the shuttle stand, the
effect of which is, that every time the loom is stopped the setting-up catch is
released from the taking-up wheel, but when the lost pick has been found the
weaver removes the retaining catch from the slot and allows the setting-up catch to
drop into the setting-up wheel.
By this means the setting motion is disconnected when finding a pick.
Dated this 11th day of Novembar 1802
COMPLETE SPECIFICATION.
Means for Disconnecting the Taking-up Motion of Power Looms
when the Weft Breaks.
I, ALBERT EDWARD WALKER, of Norwood Green Mill, near Halifax, in the
County of York, 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 :-
The object of my invention is to prevent weaving thin or uneven places when
finding the pick, and this I accomplish by temporarily holding the setting-up catch
clear of the teeth of the taking-up wheel. To effect this purpose I attach a
retaining catch to the mechanism connected with the lifting-up catch, so that when
the knocking-off arm is operated by the weft fork on the loom stopping, it causes
the retaining catch to be caught in a slot formed in the shuttle stand, the effect of
which is, that every time the loom is stopped the setting-up catch is released from
the taking-up wheel, but when the lost pick has been found, the weaver removes
the retaining catch from the slot and allows the setting-up catch to drop into the
setting or taking-up wheel.
In order that my invention may be more fully understood, reference is herein-
after made to the accompanying drawings, wherein :-
Fig. 1 is side elevation of a portion of the front end of a loom shewing my
improvements applied to the mechanism for disconnecting the taking-up motion.
Fig. 2 is similar elevation, partly in section, shewing the taking-up motion
disconnected and the parts locked by the retaining catch.
Fig. 3 is plan view of the shuttle stand and parts; and
Fig. 4 is an enlarged perspective view of my improved retaining catch and
connections.
In the drawings letter a represents the framing of the loom, 6 the shuttle stand,
c the knocking-off arm pivotted at c' on said stand and carrying the weft fork d;

page_text: e is the setting-on handle and f the finger or lever by which the lifting-up catch
is actuated, said finger or lever being mounted on one end of the setting-on rod h,
which extends across the front of the loom, and the catch g secured on the opposite
end of said rod. At the other side of the loom is the setting-up catch i pivotted
at to the lever k which is oscillated by the motion of the "slay or "going part"
and causes the catch i to give a step by step movement to the taking up wheel / as
is well understood.
A portion of the near side frame is broken off to shew the taking up wheel and
catches and i
g
more clearly.
The parts above set forth are those in ordinary use in this class of loom for
disconnecting the taking-up motion, my improvements being confined to means for
holding the setting-up catch i clear of the teeth of the ratchet wheel until the
pick has been found.
The finger f, when forced forward by the actuation of the weft fork d and
knocking-off arm c through the absence or failure of the weft, oscillates or turns
the setting-on rod partly around and causes the lifting-up catch or lever g to
raise the catch i clear of the teeth of the taking-up wheel 1, but as soon as the
knocking-off arm is released, the finger has heretofore moved back to its original
position and therefore allowed the catch i to drop into gear with the taking-up
wheel and operate said wheel whilst the loom was being turned back to find the
pick, hence thin and uneven places were formed in the fabric being woven.
The means I adopt for keeping the taking-up motion disconnected until the pick
has been found, consist of a catch or device m hinged at n to the upper end of the
finger and provided with a foot or projection m³.
When the loom is weaving the foot m rests upon the shuttle stand as shewn at
Figs. 1 and 4, but on the finger being forced forward in the slot by the
knocking-off arm c, the said foot m¹ drops into and engages with the end of a
slot P formed in the shuttle stand as shewn at Fig. 2, thereby retaining the finger f
in the position to which it has been moved by the actuation of the weft fork
through the breakage or failure of weft, and keeping the catch i clear of the teeth
of the taking-up wheel 7 until the pick has been found.
The weaver afterwards takes hold of the knob or button m² and raises the catch
or device m out of the slot p so as to release the finger f, which is thereupon
drawn back to its original position by the weight of the parts and weaving
re-commences.
By the means described the setting-up catch is disconnected and remains so
until the pick has been found, whereby the formation of thin and uneven places in
the fabric through the cause above referred to is avoided.
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 :-
Firstly. The combination, with mechanism for disconnecting the taking-up
motion on the failure, or absence of weft through breakage, of a retaining catch
connected therewith adapted to automatically lock and keep the parts disconnected
until the loom is re-started substantially as set forth.
Secondly. In mechanism for disconnecting the taking-up mechanism of looms,
the combination with the finger or lever, of the catch or device m hinged thereto
and provided with a foot m' adapted to enter and engage with the slot p formed in
the shuttle stand in manner and for purposes substantially as herein shewn and
described.
Dated this 11th day of August 1893.
TASKER & CROSSLEY,
Halifax, Agents.