Improvements in or relating to Jacquards of Looms for Weaving.
Year: 1896

page_text: Date of Application, 2nd Jan., 1896
Complete Specification Left, 23rd Sept., 1896-Accepted, 7th Nov., 1395
PROVISIONAL SPECIFICATION.
Improvements in or relating to Jacquards of Looms for Weaving.
I THOMAS ALLEN of Edenderry Factory, Banbridge in the County of Down
Ireland, Foreman Mechanic, do hereby declare the nature of this invention to be
as follows:-
This invention relates to double jacquards and consists of an improved
construction, combination and arrangement of parts whereby the jacquard and
swings have the requisite motion imparted thereto by aid of simplified connections
and one eccentric as prime mover.
According to this my said invention au eccentric is applied to the tappet shaft
of the loom, so as to operate a rocking lever one end of which is carried by a stud
fixed in the end frame of the loom the other end of said lever being attached to a
connecting rod, the upper end of the latter being attached to the end of a lever
arm fixed on a shaft mounted above and across the jacquard and on which shaft
is a sector wheel, the straps or chains of which are connected with the cross bars
so as to raise and lower the griff spindles. Fixed to the cross shaft above
referred to is an arm the outer end of which carries one end of a vertical bar, the
lower end or foot of said bar works in a guide so that as the cross shaft is by the
eccentric and connections caused to oscillate or make part revolution in first
one direction then the other the vertical bar will by means of a pin acting on a
swan neck or cam groove, impart the requisite motion to the slides or swings
which carry the card or pattern cylinders. The vertical rod may be guided by
two stays so as to ensure a true vertical lift and in this case the
attached to a slot in the arm on the cross shaft.
Dated this 1st day of January 1896.
d will be
BRIERLEY & HOWARD,
Penny Bank Chambers, Halifax, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Jacquards of Looms for Weaving.
I, THOMAS ALLEN, of Edenderry Factory, Banbridge, in the County of Down,
Ireland, Foreman Mechanic, 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 relates to double action jacquards, and consists of an improved
construction, combination, and arrangement of parts whereby the jacquard and
swings have the requisite motion imparted thereto by aid of simplified connections
and one eccentric as prime mover.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had to the accompanying drawings,
in which:-
Fig. 1 is an end elevation of part of a double action jacquard constructed
according to my invention.

page_text: Figs. 3, 4, and 5 are details.
According to this my said invention, an eccentric 1 is applied to the tappet
shaft 2 of the loom, so as to operate a rocking lever 3, one end of which is carried
by a stud 4 fixed in the end frame 5 of the loom. The other end of said lever 3
is attached to a connecting rod 6, the upper end of the latter being connected to
the end of a lever or arm 7 fixed on a shaft 8 mounted above and across the
jacquard, and on which shaft 8 is a sector wheel 9, the straps or chains 10 of which
are connected with the cross bars 11 so as to raise and lower the usual griff spindles
in the ordinary manner. Fixed to each end of the cross shaft 8 above referred to,
is an arm 12, 12; the outer end of each arm 12 carries one end of a vertical
bar 13; the upper and lower ends of said bars 13 work in guides 14, so that as the
cross shaft 8 is by the eccentric 1 and connections, caused to oscillate or make a
part revolution in first one direction, then the other, the vertical bars 13 will be
caused to rise and full, or move up and down; or the lower end of each rod 13
may be prolonged (see Fig. 5) and the prolonged end work in a hole or guide in
the frame of the jacquard. The arms 12 are connected with the bars 13 by means
of studs or pins which are received in slots 22 so as to allow a little play at these
points.
To each vertical lever 13 is fixed by adjustable stud or bolt 15 in the slot 16
(see Fig. 4) a bracket 17, in which is a swan neck or cam groove 18, and in this
groove is received a pin 19 fixed in the slides or swings 20, which carry the card
or pattern cylinders 21.
As the vertical bars 13, 13 and cam grooves 18 are caused to move up and down,
the latter, acting on the pin 19, move the slides or swings 20 to and fro, and thus
give the requisite motion to the pattern cylinders 21.
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 :-
(1.) The general construction, arrangement, and combination of parts con-
stituting the improvements herein referred to, and as and for the purpose described,
and substantially as illustrated by Fig. 1 of the annexed drawings.
(2.) The cross shaft 8, arms 12, vertical bars 13, cam grooves 18, pins 19,
slides or swings 20, and pattern cylinders 21, all in combination, as and for the
purpose herein described, and substantially as illustrated by the annexed
drawings.
Dated this 21st day of September 1896.
THOMAS ALLEN,
By his Agents, Brierley & Howard,
Penny Bank Chambers, Halifax.