Improvements in Jacquard Weaving Looms.
Year: 1890

page_text: Date of Application, 22nd Jec., 1890-Accepted, 13th June, 1891
COMPLETE SPECIFICATION.
· Improvements in Jacquard Weaving Looms.
I, WILHELM HOLTHAUS of the City of Elberfeld in the German Empire,
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 :-
This invention has for its object to reduce the number of cards necessary for
pattern goods, and the end is attained by using the pattern cards as ground weft
cards as well, and by arranging a secondary batten cylinder on the shaft of the
main cylinder, which secondary cylinder can rotate independently of the main
cylinder.
The manner in which I prefer to carry my invention into effect is shewn in the
accompanying drawings and the letters of reference in this Specification refer to
similar letters in the drawings.
Fig. 1 is a cross section of a loom according to my invention, in which sinkers (a)
are shewn in their two positions that is to say some in their normal position (those
on the left) ready for lifting knives (b) and some pushed away from the knives
(those on the right).
Figs. 2, 4, 6, 9 and 10-are side views.
Figs. 3, 4, 5 and 8 are longitudinal sections.
Figs. 7 and 11 are ground plans.
B
Figs. 12ª and are details.
(d) (Figs. 2, 4, 8 and 9) is a metal plate which can be pushed in front of the
needle row, or the needle box (f) (Fig. 1) whereby all the needles, with the
exception of those forming the ground weft, are pushed away from the knives,
that is to say they are made inactive, and in this manner the same effect is produced
as when special ground weft cards are used.
The raising of said metal plate (d) is effected in the following manner:
Two levers (h) and (1) which are attached to the frame work of the loom are
provided with hinge bolts (i) and (i 1) (Figs. 2, 6, 7, 9) on which turn two
levers (k) and (k 1) which are connected with each other by means of bar (1) fixed
on metal plate (d) Figs. 2, 4, 5, 6, 7, 8 and 9.
The movement of levers (k) and (1) is effected by the periodical turning of
lifters (n) and (n 1), attached to shaft (m) (Figs. 2, 5, 6, 7 and 9) and provided
with rollers (o) and (o 1) (Fig. 5) which bear under levers (k) and (k 1).
The bearing p and of shaft m are fixed on frame of loom (Figs. 5 and 7).
Lifters n and n 1 are caused to turn periodically by the battens and turning
on pins g & g1 (Figs. 1, 2, 3, 5, 6, 7, 9 and 10) having a bolts provided with hinge
joint s 1 attached to them and to such bolt is hinged hook t which catches in pin 1
of disk t 2 fixed on shaft m thus turning the latter (Figs. 2, 5 & 6).
In order to bring disc t2 at rest suddenly springs t 3 are arranged on pins 4
and press shoulder t 5 against pins t 1 and as soon as one of said pins has arrived
at its highest point, it is forced rapidly downwards (Figs. 2 and 7).
In Figs. 2 and 6 the batten is shewn as at rest, in Fig. 10 r 1 is shewn at
stroke.
In Fig. 2 levers (k) and (k 1) are shewn at rest while in Fig. 6 they are shewn
raised by lifters n, n 1. In Fig. 4. the metal plate (d) is shewn at rest in Fig. 8 it
is shewn raised.
As guides for said plate (d) serve two rods d 1 and d 2 which are attached to the
frame above in two bearings d3 and d4 and below in two bushes d5 and d 6
provided with springs which serve to withdraw plate d from the needles and bring
it back to the position of rest (Figs. 4, 4^ and 8).
In plated there are two openings d 9 and d 10 and two corresponding shoulders d 11

page_text: and d 12 (Fig. 8). The latter cover when at rest a certain number of needles,
which when the metal plate is raised come out through openings 9 and d 10 and
serve to perform the functions formerly done by the ground weft cards.
On the pattern cards are also struck the holes serving for the ground weft and
therefore when the main cylinder is at rest and metal plate d is in front of the
needles so that the greater part of the needles are pressed back, those needles
actuating the ground weft sinkers, pass through openings d9 and d 10, thus causing
the griffe bar c1 with knives c to raise such sinkers (Figs. 4, 7,-8 and 11)..
The griffe bar is raised in the usual way by means of angle lever c3. swinging
on pivot 2 and connected by means of frame c 4 with griffe bar c.
In Fig. 4 the griffe bar and sinkers a are shewn at rest but in Fig. 8 they are
shewn raised.
The cylinder is rotated in the usual way at each stroke of batten 1 (Fig. 9
and 10) by the action of hooks u and u 1. In some cases however it is intended
by this new arrangement not to let the cylinder rotate, and especially when plate.d
is in front of the row of needles, that is when the pattern cards are required to
remain inactive. In order to effect this a contrivance is provided for raising the
hooks so that they do not catch the pins of the cylinder.
This contrivance consists of a special hook which is attached by means of
hinge joint 1 to a pivot v2 attached to hatten 1. Said hook turns periodically.
disc 4 sitting on pivot 3 and thereby lifter 6 sitting on roller v5 which lifter
raises hook u 1 at the right moment (Figs. 5, 9 and 10) v7 and 8 are pins with
springs which act in the same way upon disc v4 as t 3 and 4 do on disc t2
explained above.
In Figs. 9 & 10 the disc is provided with three pins so that three strokes of
batten 1 are necessary to turn it and as a lifter is placed between two pins, it
follows that at every third stroke the hook 1 is raised, whereby the cylinder is
caused not to rotate.
At the same time plate is raised because disc t 2 is likewise provided with a
lifter between two pins so that in-one full turn plate-d-is-raised once and. this is
made to just correspond with the time when the cylinder does not rotate.=
The disengagement of hooks u-1-and-the raising-of-plated connected therewith
can naturally be also brought about by increasing the number of pins and relatively
the number of lifters. In Figs. 12A and B is shown a disc w with four pins say
four pins w 1 two lifters w 2 and rollers w3.
If this were made to replace v4 then hooks u 1 would be raised at every
alternate stroke. If four pins were employed and only one lifter-then-the-same-
action would take place at every fourth stroke and so on.
In order to raise-the-leash-and produce-a-list- there is arranged on shaft gla
secondary cylinder 2 (Figs. 3, 6 and 7) which is turned in usual manner by
hooks g 3, g4 disc g 5 with pins g 6 and springs 97 at every stroke of battens rrl
the turning being interrupted and independently of the turning of main cylinder.
For this secondary cylinder a separate small card chain is provided.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what I
claim is :-
In Jacquard and similar looms the arrangement for using one card both for
ground weft and pattern production-consisting essentially-in-a-plate-d.which.can.be
pushed in front of the needles (the batten cylinder being at the same time pre-
vented from turning) or removed therefrom, in order to prevent one portion or
another of the needles either those forming the ground weft or those forming the
pattern from acting substantially in the manner as and for the purpose described.
2) The contrivance for bringing about the idea claimed above consisting of shaft m
lifters n and n 1, rollers o and o1 levers k and k 1 turning on fixed pins i and i 1
with connection rod 1, guide rods d 1 and d 2 in spring bearings all substantially
in the manner as and for the purposes described and as shewn in the drawings.

page_text: 3) The arrangement for preventing the cylinder to turn when a change of card
must not take place consisting essentially in disc v4 with corresponding lifters v5
substantially in the manner as and for the purpose described and as shewn in the
drawing.
4) The arrangement for lifting the leash and forming the list consisting in a
secondary cylinder g 2 fixed on the shaft g1 of the main cylinder with necessary
hooks and pins for turning it, substantially in the manner as and for the purpose
described.
Dated this 19th day of December 1890
C. R. BONNE & Co.,
Authorised Patent and Trade Mark Agents, 41, Eastcheap, E.C.