Improvements in Single Lift Open Shed Loom Jaequards.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Single Lift Open Shed Loom Jaequards.
We, GEORGE HERBERT HODGSON, Loom Maker, and WALTER TETLEY, Over-
looker, both of Frizinghall Loom Works, Bradford, in the County of York, do
hereby declare the nature of this invention to be as follows:―
This invention relates to and comprises improved apparatus of simple and inex-
pensive order whereby an open shed is secured in a single lift jacquard.
For purpose aforesaid and according to this invention there is employed near
to and parallel with the ordinary face board a rectangular gráte or frame through
the outer longitudinal bars of which and across the frame are pins or wires
and these are between the ordinary "uprights or needles.
"
By means of levers a slight to and fro motion is imparted to the grate and
its cross pins or wires, the return movement of the said grate being effected
through the agency of a spiral spring or weight.
The object of the to and fro movement of the grate is to bring its cross
pins in and out of contact with bends formed on the uprights, there being two
such bends on each upright one for the lifting grate and one for the standing
grate. The cross pins and bends serving to hold the uprights down when the
pins of the frame are brought into position with the bends and when the cylinder
has gone back. The movements of the grates are controlled from an extra upright
worked by lifting bars.
The crank sweep should be down when the cylinder is pressing
BRIERLEY & HOWARD,
Penny Bank Chambers, Halifax,
Agents for the Applicants.
Improvements in Single Lift Open Shed Loom Jacquards.
We, GEORGE HERBERT HODGSON, Loom Maker, and WALTER TETLEY, Over-
looker, both of Frizinghall Loom Works, Bradford, in the County of York, do
hereby declare the nature of this invention and in what manner the same is to
Price 871

page_text: be performed, to be particularly described and ascertained in and by the follow-
ing statement:
-
This invention relates to improvements in single lift open shed jacquards of
looms for weaving, the object being by simple and inexpensive mechanism applied
to and combined with the ordinary single lift jacquard to secure an open shed.
The invention consists of the use in combination with the ordinary face board
of a grate having a to and fro motion imparted to it in such a manner that the
'bars of the grate are brought opposite or lineable with projections on the needles
which control the uprights.
Such being the nature and object of our said invention, the following is a
complete description of same, reference being had to the annexed drawings, in
which:-
Fig. 1 is a front elevation of a single lift jacquard having the improvements
applied thereto.
.....
Fig. 2 is a sectional plan view of the face board and rectangular frame or
grate shewing, the cylinder and card pressed to the face board and the positions
assumed by the needles when opposite holes and blanks in the card.
Fig. 3 is a side view of four hooks and needles with the lifting grate at the
top of its movement.
Fig. 4 is a similar view to Fig. 3 but with the lifting grate at the bottom of
its movement and the cylinder out, i.e., away from the face board, the hook being
held by the needles and bars until the lifting grate again moves to the top of
its lift.
According to this invention the jacquard is made in the ordinary manner and
there is employed near to and parallel with the ordinary face board 1 a rectan
gular grate or frame 2 the bars 3, 3 of which are preferably vertical. The
needles 4, 4 pass between the bars 3, 3 of the. grate 2 and each needle 4 has a
slight bend in it forming a projection 5 which constitute holding notches with
which the bars 3, 3 engage, and the needles 4, 4 are thereby held in the position
to which they were last moved by the cards, and are so locked until the lifting
grate 13 returns to the top centre or top of its movement. The ordinary up-
rights 6, 6 are employed in connection with the needles 4, 4 and these are operated
and operate in the usual manner by cylinder 15 and cards 16.
In order to allow of the needles 4, 4 being operated as indicated by the cards, a
slight to and fro motion is imparted to the grate 2 which is by link 7 connected
to one arm of the bell-crank lever 8, the other arm of such lever being by link 9
connected to the lever 10 pivoted on the stud 11 in the frame 12 of the jacquard.
Each time the lifting grate 13 is raised it comes in contact with, the end of the
lever 10, slightly raises the latter, and through the links 7-9 and bell-crank 8,
a slight endwise motion is given to the grate 2, and when the grate 13 falls,
the spring 4 pulls back the grate 2 to its position so that just before the cylinder
15 and cards 16 press the needles 4, 4 the bars 3, have released or unlocked the
needles 4, 4, but before the cylinders 15 and cards 16 leave the needles 4, 4 the
latter are locked in the position to which they have been moved by the bars 3, 3
engaging the projections 5, 5.
The jacquard is operated in the ordinary manner except that the cylinder 15
and cards 16 press the needles 4, 4 when the lifting grate is at the "top centre or
top of its movement instead of the bottom as heretofore.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
:-
(1) The improved single lift jacquard as and for the purpose herein described
and substantially as illustrated by the annexed drawings.
(2) The rectangular grate or frame and bars 3, 3 to which a to and fro motion
is imparted and the needles 4, 4 having the projections 5 all in combination as

page_text: and for the purpose herein described and substantially as illustrated by the
annexed drawings.
(3) The rectangular grate or frame 2 and bars 3, 3 link 7 bell-crank lever 8
link 9 and lever 10 operated and operating as and for the purpose herein described
and substantially as illustrated by Fig. 1 of the annexed drawings.
Doted this 20th day of ML 1000
GEORGE HERBERT HODGSON.
WALTER TETLEY,
By their Agents,
Brierley & Howard,
Penny Bank Chambers, Halifax.
GEORGE HERBERT HODGSON.
WALTER TETLEY,
By their Agents,
Brierley & Howard,
Penny Bank Chambers, Halifax.