Improvements in Adapting Double-lift Jacquard Apparatus to the Weaving of Lenos.
Year: 1892

page_text: Date of Application, 26th Mar., 1892
Complete Specification Left, 24th Dec., 1892-4ccepted, 28th Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in Adapting Double-lift Jacquard Apparatus to the
Weaving of Lenos.
I, JAMES WILDING, of the firm of Wilding Brothers, Alexandra Mill, Preston,
in the County of Lancaster, Cotton Manufacturer, do hereby declare the nature
of this invention to he as follows :-
My invention has for its object to adapt ordinary double-lift jacquard apparatus
to the weaving of lenos that is to say to so arrange such apparatus that certain
of the warp threads from the lower portion of the shed may be raised or lifted at
each pick of the loom half way up between the upper and the lower sheds into
proper position for crossing or "leno "-ing in the manner usual in double-lift
shedding.
To this end I employ a horizontal bar or bars hanging at each end from the
lower extremities of helical or elastic springs and to the said bar or bars are con-
nected or looped the neck bands from which are suspended such of the harness
(carrying the crossed ends) of the lower shed as are to be lifted or raised in the
manuer hereinbefore mentioned. I attach a wire or string to the bar or bars the
said wire or string being carried downwardly and attached to one end of a swing
or see-saw lever below and the other end of the said lever is connected with the
jacquard hooks above in the ordinary way. Those hooks which are connected with
the lever as just mentioned may be fastened to the jacquard knives (to prevent the
liability of their "missing" or being pushed off the knives) and when the said
knives through the ordinary action of the jacquard mechanism descend from top
to centre the springs through the medium of the see-saw lever below are at liberty
to pull up the horizontal bar or bars and so to lift the portion of the harness
depending therefrom from bottom to centre of shed thus bringing the crossed ends
or threads into the required position with the doup threads.
::
In lieu of a see-saw lever a pulley may be employed under which a string or cord
may be passed.
But I prefer to so arrange the horizontal bar or bars springs see-saw lever and
other parts above described in such manner that the operating of the harness shall
be in the reverse way to that just referred to that is to say so that the harness
carrying the crossing ends (instead of the crossed ends) are lifted by the horizontal
bar or bars and springs from the bottom to the centre of the shed the crossed
ends being operated by the jacquard mechanism in the ordinary manner. By
this last described arrangement the doups by being arranged above the warp
instead of below it as is usual are more readily visible and more easy of access
for repairs.
Dated this 26th day of March 1892.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant..
COMPLETE SPECIFICATION.
Improvements in Adapting Double-lift Jacquard Apparatus to the
Weaving of Lenos.
I, JAMES WILDING, of the firm of Wilding Brothers Alexandra Mill, Preston,
in the County of Lancaster, Cotton 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 :--
My invention has for its object to adapt ordinary double lift jacquard apparatus

page_text: to the weaving of lenos that is to say to so arrange such apparatus that certain
of the warp threads from the lower portion of the shed may be raised or lifted at
each pick of the loom half-way up. between the upper and lower sheds into
proper position for crossing or "leno"-ing in the manner usual in double-lift
shedding
To this end I employ a horizontal bar or bars hanging at each end from the
lower extremities of helical or elastic springs and to the said bar or bars are con-
nected or looped the neck bands from which are suspended such of the harness
(carrying the crossed ends) of the lower shed as are to be lifted or raised in the
manner hereinbefore mentioned. I attach a wire or string to the bar or bars the
said wire or string being carried downwardly and attached to one end of a swing
or see-saw lever below and the other end of the said lever is connected with the
jacquard hooks above in the ordinary way. Those hooks which are connected with
the lever as just mentioned may be fastened to the jacquard knives (to prevent the
liability of their "missing" or being pushed off the knives) and when the said
knives through the ordinary action of the jacquard mechanism descend from top to
centre the springs through the medium of the see-saw lever below are at liberty
to pull up the horizontal bar or bars and so to lift the portion of the harness
depending therefrom from bottom to centre of the shed thus bringing the crossed
ends or threads into the required position with the doup threads.
"
.In lieu of a see-saw lever a pulley may be employed under which a string or cord
may be passed.
But I prefer to so arrange the horizontal bar or bars springs see-saw lever and
other parts above described in such manner that the operating of the harness shall
be in the reverse way to that just referred to that is to say that the harness
carrying the crossing ends (instead of the crossed ends) are lifted by the horizontal
bar or bars and springs from the bottom to the centre of the shed the crossed ends
being operated by the jacquard mechanism in the ordinary manner.
By this last
described arrangement the doups are arranged above the warp instead of below it.
The accompanying drawing illustrates a single row of hooks and attendant parts
hereinabove mentioned arranged according to my said invention.
In the said drawing a is the jacquard knife, jacquard hooks, and ce neck
bands hanging from the links or wire loops ff. d is a horizontal bar passed
through the said loops ff and ee are spiral or elastic springs attached at their
lower extremities to the horizontal bar d and at their upper extremities to the
framework g of the jacquard machine. are pulleys carried on the lower ends
of brackets or depending arms which may be attached to timber cross pieces jj.
kare leather belts attached at each end to wire links or hooks the said links
being attached at their other ends one to the bar and the other to the jacquard
knife a the said belts & passing under the pulleys has shewn. mm indicate
grates or guides for the bar d.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
Adapting double-lift jacquard apparatus to the weaving of lenos in manner sub-
stantially as described and shewn in the drawings.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.