Improvements in Fault-stopping Apparatus connected with Jacquards.
Year: 1894

page_text: COMPLETE SPECIFICATION.
Improvements in Fault-stopping Apparatus connected with
Jacquards.
1, WILLIAM JOHN RILEY, of Holker Street Mill, Colne, Lancashire, Manu-
facturer, 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 :-
The improvements relate to fault stopping apparatus connected with double-
cylinder jacquards, employed in looms for weaving, and have for object the more
effectual automatic stopping of the loom, when the cards of the jacquard work out
of proper sequence, and form an improvement upon inventions described in
Specifications Numbers 15,582 of 1886, and 7618 of 1893.
In the accompanying drawings, Fig. 1 shews a side view of part of a jacquard
with apparatus arranged according to my improvements, and Fig. 2. part of a
front view thereof, while Figs. 3, 4 and 5 shew front, side and plan views
respectively, of certain details of the special apparatus to be hereinafter described.
The same letters indicate corresponding parts wherever they occur.
The ordinary upright wires of the jacquard, as well as other details not essential
to the present invention are omitted from the drawing for the sake of clearness.
To accomplish the object of the invention, and to effect my improvements, I
mount upon the frame a. a. of the jacquard, suitable brackets c. c. which carry a
rod or bar d. d. such rod or bar being capable of sliding freely to and fro within
the brackets, in the plane of motion of the card cylinders b. b.
The ends of this rod or bar d. are turned down, or up, or both, at right angles, or
thereabouts, beyond the brackets, and attached to the rod or bar d, at a convenient
point, is an arm e, formed at its upper end with a loop or hook e', which engages
with a spare or extra upright wire f, connected, by any well-known means, to the
weft-fork lever, or other stopping apparatus of the loom.
The upright wire f. when pushed by the arm e into the position shewn in full
lines, in Fig. 1, is in position to be raised at the next movement of the grife, and
so, unless the wire f. is moved back, will actuate the stopping apparatus, as is well
understood.
Upon one of the supporting arms b', of each of the card cylinders b, I mount a
bracket or arm g-or it may be an extension of the arm which carries a
projection formed, at g', with a grid, which, at every beat-up of the cylinder,
comes towards one of the bent-over ends of the rod or bar d, and, when nothing
intervenes, receives the same within the grid-space, without actuating the rod or
bar d.
In a chain of jacquard cards, as ordinarily employed, rods or wires, as shewn at h,
are attached at intervals, for the purpose of suspending the said cards in festoons
from supporting rails, during such time as they are not in use upon or about the
cylinders. These suspender rods or wires project for some distance beyond the
cards, at each side, and are, according to my improvements, employed, in addition,
for the purpose of intervening between the moving grid g' and the rod or bar d. as
shewn in Figs. 3, 4 and 5; so that the rod or bar d, is actuated, and thereby,
through the arm e, the upright wire f. is placed in position to be lifted at the next
movement of the grife. But according to my improvements, the corresponding
movement of the opposite card cylinder will, if the cards are in proper sequence,
bring a suspender rod or wire into position, on the opposite side of the jacquard,
and the rod or bar d will, in like manner, be pushed into its former position, and
the upright wire f, will be removed from the action of the grife before it can be

page_text: raised. Thus, it will be seen that, until the proper sequence of the cards is
disturbed from any cause, the action of the rod or bar d, caused by the intervention
of a suspender wire at one side of the jacquard, will be counteracted by a reverse
action through a suspender wire on the other side, and the loom will not be
stopped.
In Fig. 1, the rod or bar d. is shewn pressed out of its normal position, and the
wire f. is pushed, by the arm e, into position to receive the grife.
dis a projection on the underside of the rod or bar d. to act as a stop to abut
against the bracket, when in the normal position, and offers sufficient resistance to
prevent accidental displacement of such rod d, but a spring or other means may be
employed for this purpose.
The brackets c may be formed with suitable projections, as c¹, to prevent the
suspender wires from falling upon, instead of in front of the rod d, and variations
in the details of the apparatus, such as the method of mounting the sliding rod or
bar d. and of actuating the wire f. thereby, as well as in the design and material of
the various parts, may be made. Likewise the ends of such rod or bar d. may be
formed with caps, discs, or other abutments, in lieu of bending over the ends; or,
as a reverse arrangement, the grids g¹ may be formed upon the rod or bar d, and
the moving brackets g. made capable of passing within such grids, all without
departing from the peculiar character of the invention.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, declare that what I
claim is:-
In connection with double-lift jacquards, the combination of apparatus, consisting
of a sliding rod provided with an arm which actuates a wire capable of operating
the weft fork lever or other stopping mechanism of the loom, and an arm or
projection forming part of, or mounted upon, and moving with one of the supporting
bars of each of the card cylinders, which arm or projection, on the intervention of
a card suspender wire between the same and an end of the sliding rod, causes such
sliding rod to move, for the purpose and in manner substantially as herein shewn
and described.
Dated this 4th day of May 1894.
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester, Agent.