improvements in Jacquard Apparatus for Looms.
Year: 1898

page_text: improvements in Jacquard Apparatus for Looms.
I, LOUIS ANTOINE, GARCHEY, of La Demi-Lune, near Lyons, France, Operative,
do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved construction of jacquard apparatus for
looms with intermittently acting pushing device, which enables jacquard
patterns prepared on continuous paper to be substituted for the ordinary card-
board patterns.
The construction and action of the jacquard apparatus is as follows:-
A vertically reciprocating frame carries the horizontal jacquard needles which
act on the lifting hooks in the usual way; suspended from the upper end of the
fixed framing is a rocking batten on which is a sliding frame carrying at its
lower end the ordinary jacquard barrel over which the perforated continuous
paper pattern passes, and which moves up and down with the needle frame, the
batten with its barrel being rocked forward at each pick of the loom by means
to be presently described, so as to actuate the needles by means of the paper
pattern for selecting the lifting hooks in the usual manner. Facing the other
ends of the needles is the pusher, carried in horizontal guides of the vertically
reciprocating frame, for bringing the needles back into the position for engaging
the lifting hooks after being acted upon by the paper pattern. This pusher
consists of a horizontal bearer of trough section, in the flanges of which are
mounted closely side by side a series of vertical bars, each of which corresponds
to a vertical row of the jacquard needles, and which, by the forward motion
of the pusher, effected as will be presently described, consequently move the
needles back to the engaging position. These tappet bars are so arranged that
any one or more of them can be readily removed from the bearer carrying them,
so that the corresponding row or rows of the needles is or are entirely thrown
out of action, as may be required by the pattern in use for the time being.
Within the vertically reciprocating frame but attached to the fixed framing
are arranged horizontally moveable slides pivotally connected at one end by a
screw rod to the said pusher and having at its other end a pivotted horizontal rod
that projects slightly beyond the ends of the jacquard needles that face the pattern
barrel, so that when this is moved forward it has first to push these rods slightly
backward before it can act on the needles. The said rods being attached to the
slides, which are attached by the other rods to the pusher, it follows that by
such first forward motion of the pattern barrel the pusher is moved backward,
away from the needles, so that on the continued forward motion of the barrel
the needles are perfectly free to be moved back by the pattern paper, which can
consequently effect this motion with only a slight pressure. When the needles
have been thus moved back they are slightly held in that position by spring
catches, until, by the forward motion of the slides and pusher, they are brought
back into the engaging position.
This motion of the slides and pusher is effected as follows. On the slides are
mounted pivotted and weighted latches with cam shaped ends on which act

page_text: rollers on the lower ends of slides that rise and fall with the needle frame;
these rollers in rising press in a lateral direction the latches and thereby effect
the above described forward motion of the slides and pusher.
The motion of the pattern barrel to and from the needles is effected as follows.
To the rocking batten which carries the sliding frame of the pattern barrel are
fixed looped metal guides sloping at a certain angle to the vertical, and in
these loops are situated rollers carried by a bar projecting from the vertically
reciprocating needle frame. To each side of the loop are pivotted cam shaped
weighted latches that project into the loop, so that on the commencement of the
rising motion of the needle frame the said roller in rising first comes in contact
with the lower latch and is thereby caused to press the loop and with it the rock-
ing batten and pattern barrel forward so that the barrel thereby effects the before
described operations of first moving the pusher backward and then acting on
the jacquard needles.
On the farther upward motion of the frame, the roller, in coming in contact
with the second latch and also with the inclined side of the loop, presses this
and the batten and pattern barrel backward away from the needles, while at
the same time the pusher effects the forward motion of the needles in the above
described manner. The pattern barrel has a guide plate for guiding the paper
pattern in position.
The lifting hooks and their knives may be arranged in the well known
manner, but by preference the hooks are formed with their upper ends slightly
cranked for facilitating their proper engagement with the knives.
Dated this 14th day of October 1898.
ABEL & IMRAY,
Agents for the Applicant.
Improvements in Jacquard Apparatus for Looms.
I, LOUIS ANTOINE GARCHEY, of La Demi-Lune, near Lyons, France, Operative,
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 an improved construction of jacquard apparatus for
looms with intermittently acting pushing device, which enables jacquard
patterns prepared on continuous paper to be substituted for the ordinary card-
board patterns.
I will describe the apparatus with reference to the accompanying drawings
in which Fig. 1 shews a front view and Fig. 2 a cross section, Figs. 3 to 11
shew various details. Fig. 12 is a plan of parts of two of the needles shewing
one in the forward and one in the backward position.
The apparatus consists as usual of a framing A carrying the blades that
raise the hooks; the slides of this frame each carry a roller B which actuate a
moveable cam C fixed to a transmitter H sliding in grooves O.
Each transmitter, of which one is shewn separately at Figs. 3 and 4 carries
on the one side a rod I which connects it to the intermittent pusher J carry-
ing the removable tappets a of which those that correspond with the vertical
row of needles which are not in action can be withdrawn. For this purpose
these tappets are constructed as shewn separately in Figs. 5, 6 and 7; they.
have a rectangular section except at the base b which is formed with a cylin-
drical part engaging with the cheek c of the pusher J.

page_text: When it is desired to withdraw one or more rows of tappets the nut which
connects the pusher to the rod I is unscrewed for detaching it from its guides;
the tappets to be removed are then raised vertically by causing them to slide
in the upper cheek c¹, and disconnect their bases 6 from the cheek c, which
allows them to be removed readily from the piece J.
Each transmitter H carries in addition a rod G which meets the ordinary
barrel F carrying the perforated pattern paper, and mounted as ordinarily on
the batten S.
The framing A. carries metal presser rods P each carrying a roller D in the
slot of the angular piece K. On one of the sides of the piece K is pivotted a
moveable cam E provided with a counterweight N and on the other side are
pivotted two lever arms L M jointed together with certain play. The cam E
and the arms L M are moveable in grooves ef formed in the piece K, the
slot of which is closed at the top in order to strengthen it.
Above the barrel F is suspended a metal plate Q turned up at the edges.for
giving passage to the perforated paper.
Figs. 1 and 2 of the drawings shew the mechanism at the moment when the
frame A is at rest, from which point the action will be followed in the subse-
quent description.
In rising the framing A determines simultaneously and almost immediately
the several following movements:
1. The roller B at the lower end of the slide raises the moveable cam C car-
ried by the transmitter H, this cam being already held up by its counterweight T.
2. The roller D situated at the end of the presser rod P raises the moveable
cam E the counterweight N of which is bearing against the side of K: this
pushes towards the left, the batten or rocker S Fig. 8 and consequently the
barrel F, against the rods G which projects slightly beyond the needles.
The rods G, plates H which slide in the grooves O, the rods I and the
pusher J form a rigid whole which, yielding to the push of the barrel F, recedes
leaving free all the needles and also causing the cam C to be acted upon by the
roller B which raises it in continuing its upward motion.
At this time the barrel F, provided with a paper pattern, has met the free
needles which are consequently actuated thereby or left standing, according to
the perforations of the pattern.
After leaving the cam E, the roller I) meets the piece K which guides it
and then it meets the moveable cam L M shewn at rest in Fig. 2; it raises
the limb L which allows D to pass, by moving into a recess. f formed in the
piece K, and abuts against a stop h, after which it falls back by gravity into its
original position.
Under the action of the roller D on the piece K, the rocker S is moved
backward together with the barrel F which is partly turned so as to bring
another part of the pattern into action, and the framing A then descends again.
In the descent the roller D meets the limb L and moves it to the vertical
position Fig. 9 and at the same time it bears against the cam E and moves it
out of the way raising its counterweight.
The roller bearing against L prevents the rocker S and the barrel F from
being free and from coming in contact with the needles.
At the moment when the roller 1 bears against the cam L the roller B
bears against the incline of the cam C, and so moves forward the plate H and
the rods G and I and pusher J, which latter brings the needles back to their
engaging position.
The roller 1 then leaves the cams E, N and L M which resume by gravity
their original positions; the rocker S and the barrel F then become free but
the latter cannot come in contact with the needles, because it is prevented by
the projection of the rods G, which the roller B, being at the end of its stroke,
keeps in their position after it has left the cam C in completing its descent.
The mechanism described placed in the ordinary part of the apparatus, does

page_text: 100
..
not in any way impede the action of the "hooks, which is exactly the same as
usual i As shewn in Fig. 12, the horizontal rows of needles are separated by
rods and pins act as stops in the slots of the needles..
:
Having now particularly described and ascertained the nature of this inven
tion, and in, what manner the same is to be performed, I declare that what "1
claim: is:
1. In a jacquard apparatus with intermittently acting pusher, a transmitter H
with its cain C'serving by means of the pusher J to bring the needles displaced
by the pattern barrel and to maintain them in position until the rising. of. the
framing A, substantially as described.
$
2. In a jacquard apparatus the combination of a pusher J with removable
tappets, the partial removal of which enables corresponding rows of needles
to remain stationary according to the nature of the work, substantially as
described:
:
. 1
3. In a jacquard apparatus the mechanism for producing the thrust of the
barrel Fagainst the needles when the framing A rises, and consisting of the
moveable cam E N mounted on the angular piece K and operating substan-
tially as described.
.
4. In a jacquard apparatus, the angular piece Kclosed at its upper part
which strengthens it during the passage of the roller D), substantially as
:described.
5. In a jacquard apparatus the construction of the pivoted cam L M mounted
upon the angular piece K which prevents all loose motion of the rocker while
the rods G of the transmitter H are interposed for preventing the barrel from
beating against the needles before the ascending action of the roller D, sub-
stantially as described.
: