Improved Automatic Stop Motion for Fancy Weaving.
Year: 1894

page_text: Date of Application, 29th Mar., 1894
Complete Specification Left, 2nd Nov., 1894-Accepted, 8th Dec., 1894
PROVISIONAL SPECIFICATION.
Improved Automatic Stop Motion for Fancy Weaving.
I FREDERICK GRENAN MCCORMACK of Nesbit Road, Mazagon, Bombay,
India, Weaver, do hereby declare the nature of this invention to be as follows:-
My said invention has for its object to provide means for automatically stopping
a loom at certain points in the progress of the weaving.
In a loom for weaving fancy goods with the aid of a Jacquard machine or a
shaft machine or dobby but without a changing shuttlebox it is necessary when a
limited number of picks or threads of weft of a particular colour or quality have
to be inserted for the weaver to count such special threads and to stop the loom
when the required number is reached and to change the shuttle.
By the use of my said invention the loom stops automatically.
Where a Jacquard machine is used I attach one end of a chain cord or other
like connecting medium to the weft fork lever and secure the other end to a special
platine or needle in the Jacquard machine. Suitable guide pulleys or rollers are
provided to guide the cord. As there would be as many cards provided in the
Jacquard harness as the limited number of picks required in the case hereinbefore
mentioned the last card of this particular series is provided with a special hole
which shall lift the said special platine or needle and cause it to operate the weft
fork lever and thus to stop the loom automatically. Such special holes are
provided in the last card of each series or sequence of weft threads of a particular
kind.
Where shaft machines or dobbies are used I provide a special peg and lever in
lieu of the specially punched card and platine or needle of the Jacquard machine.
In this case the cord from the weft fork lever is connected to the special lever of
the dobby which is lifted by the said special peg and pulling at the weft fork lever
the loom is stopped as herein before described.
Dated 28th day of March 1894.
E. T. WHITELOW, A.M. Inst. C.E.,
70, Deansgate, Manchester, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improved Automatic Stop Motion for Fancy Weaving.
1 FREDERICK GRENAN MCCORMACK of Nesbit Road, Mazagon, Bombay,
India. Weaver, 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 :-
My said invention has for its object to provide means for automatically stopping
a loom at certain points in the progress of the weaving.
In a loom for weaving fancy goods with the aid of a Jacquard machine or a
shaft machine or dobby but without a changing shuttle box it is necessary when a
limited number of picks or threads of weft of a particular colour or quality have
to be inserted for the weaver to count such special threads and to stop the loom
when the required number is reached and to change the shuttle.
By the use of my said invention herein described with reference to the accom-
panying drawings the loom stops automatically.

page_text: :
the drawings
Figure 1 is a perspective view of so much of a loom and a Jacquard machine as
is necessary to illustrate my said invention.
Figure 2 is a diagram showing a side elevation.
Figure 3 is an enlarged view of one of the guide pulleys b c.
Where a Jacquard machine as d is used I attach one end of a chain cord or
other like connecting medium e to the weft fork lever a and secure the other end.
to a special platine or needle in the Jacquard machine d. Suitable guide pulleys"
or rollers b c are provided to guide the cord e. As there would be as many cards
provided in the Jacquard harness as the limited number of picks required in the
case herein before mentioned the last card of this particular series is provided with
a special hole which shall lift the said special platine or needle and cause it to
operate the weft fork lever a and thus to stop the loom automatically. Such
special holes are provided in the last card of each series or sequence of weft threads
of a particular kind.
Where shaft machines or dobbies are used 1 provide a special peg and lever in
lieu of the specially punched card and platine or needle of the Jacquard machine.
In this case the cord from the weft fork lever is connected to the special lever of
the dobby which is lifted by the said special peg and pulling at the weft fork
lever the loom is stopped as herein before descrihed.
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.―
The combination and arrangement of a specially punched card and needle of a
Jacquard machine (or a special peg and lever of a shaft machine or dobby) and a
flexible connection passing over guide rollers with the weft fork lever of a loom
substantially as and for the purpose set forth.
Dated 1st day of November 1894.
E. T. WHITELOW, A.M. Inst. C.E.,
70, Deansgate, Manchester, Agent for the Applicant.