Improvements in or appertaining to Double Lift Jacquard Apparatus of Weaving Looms.
Year: 1892

page_text: Date of Application, 12th Mar., 1892
Complete Specification Left, 11th Jan., 1893-Accepted, 11th Feb., 1893
PROVISIONAL SPECIFICATION.
.
Improvements in or appertaining to Double Lift Jacquard
Apparatus of Weaving Looms.
I, PAUL DRACUP, of Richmond Road, Bradford in the County of York,
Jacquard Machine Maker, do hereby declare the nature of this invention to be as
follows:-
From time to time since the introduction of the double lift principle to Jacquard
apparatus for weaving looms attempts have been made to obviate the necessity of
employing a separate neck cord for each of the uprights. One of the most recent
of which and perhaps as well one of the most successful consists. in coupling each
pair of uprights together by a link and connecting the neck cord to this link so
that only one neck cord is required for each pair of hooks. A serious defect
however in this arrangement is that the neck cord swings or oscillates from beneath
one upright to the other as it is alternately lifted by them. And the object of this
invention is to prevent this, that is to say, to keep the neck cord approximately
midway between the two uprights and so avoid this objectionable oscillation.
For this purpose I. employ a link or its equivalent for connecting each pair of
uprights constructed in such a manner that it is perfectly free to slide longitudinally
upon such uprights as heretofore but such link is not free to move or swing so as to
alter its angle therewith or move laterally in relation thereto.
To carry out my invention I preferably employ sheet-metal-links so formed that
they have a broad bearing or hold upon each. of the uprights and are thus held
approximately at right angles thereto.
Dated this 11th day of March 1892.
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
Improvements in or appertaining to Double Lift Jacquard
Apparatus of Weaving Looms.
I, PAUL DRACUP of Richmond Road, Bradford in the County of York
Jacquard Machine Maker, 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 :-
This invention consists of an improved link for connecting each pair of uprights,
said link being constructed in such a manner that it is perfectly free to slide
longitudinally upon the uprights, but such link is not free to move laterally in
relation thereto.
To carry out my invention I employ links preferably made from sheet metal,
and so formed that they have a broad bearing around each of the uprights and
are thus held approximately at right angles thereto.
Reference is to be made to the accompanying sheet of drawings forming a part of
this Specification in which similar letters of reference indicate corresponding parts
in each of the figures.
Fig. 1 illustrates a blank preferably punched from sheet metal and afterwards
folded so as to form the "link" for connecting the uprights.
Fig. 2 is an elevation of the lower end of a pair of uprights fitted with my improved
link, in which view the two uprights are represented at the same height and both
supporting the said link,

page_text: Fig. 3 is also a view of the two uprights but one is lifted.
Fig. 4 is a side view of the link shewn separately.
Fig. 5 is a plan view of the link.
Fig. 6 is a back view of the same.
The link 1 is stamped from sheet metal and-folded as shewn in the drawings
and so that an opening 2 is left through which the inner wires 3.4 of the uprights 5
are passed. The link 1 is made somewhat shorter or narrower at the top than the
bottom so that the sides 6. 6 are not quite parallel one to the other and when the
lower edge of either side is resting in the bend 7 at the bottom of the upright 5
(as shewn by Fig. 3) the upper edge of the side of the link bears against the
inner wire 4 of the upright 5. The knotted end of the neck cord 8 is secured to
the part 9 as shewn in the several figures of the drawings.
The prolongations 10. 10 formed at the bottom of the sides of the opening 2 are
provided to prevent the link slipping off the uprights when in operation.
Having now particularly described and ascertained the nature and object of the
said invention, and in what manner the same is to be performed I declare that what
I claim is
The improved link for purpose set forth and constructed substantially as
illustrated by the drawings annexed.
Dthis 10th
1
PAUL DRACUP,
By his Agent, Walter Brierley,
Penny Bank Chambers, Halifax.