Improvements in Tulle Frames.
Year: 1887

page_text: Date of Application, 27th Jan, 1887
Complete Left, 17th Sept, 1887
Complete Accepted, 18th Oct., 1887
Improvements in Tulle Frames.
We, EMILE DAVENIÈRE, of Paris, France, Manufacturer, and JAMES ROBINSON
HANCOCK, of Nottingham, England, Manufacturer, do hereby declare the nature of
this invention to be as follows:-
This invention has for its object to enable "stop," "one," "two" to be made in
one and the same motion by the action of fine bars and of stump bars combined,
this being effected by additional mechanism which we will proceed to describe.
We combine with the stump bar a
<< picker bar that regulates the position of the
threads in the holes of the stump bar, and a "pusher bar" that operates on the
"picker bar so as either to allow it to lie against the stump bar, or to be moved away
therefrom.
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22
The jacquard of the fine bars has two distinct motions; the first takes place at the
moment when the pusher bar moves the picker bar away from the stump bar; the
second, when the pusher bar allows the picker bar to close on to the stump bar
again.
The stump bar, pusher bar, and picker bar are placed closely side by side, the
pusher bar being situated between the stump and picker bars; the stump bar is
formed with a projecting guide at back in which the pusher and picker bars are
carried.
The stump bar is perforated so as to have two full gates and two empty gates, and
the pusher and picker bars are pressed against it by means of a spring so as to form
practically one therewith.
The pusher bar which forms an essential feature of our invention, has projections
or inclines at distances apart on its face next the picker bar, and is actuated by a cam
or by the coarse-thread Jacquard so as by means of the inclines to push the picker
bar backwards away from the stump bar, and thus to allow of the passage of the thread
between them to the right or left of the hole of the stump bar.
The picker bar has a series of hooked projections on its upper edge that curve over
the pusher bar and bear against the stump bar when in the closed up position. The
inclines on the pusher bar are so arranged that when this does not operate as above
described, they are situated in the spaces existing between the hooks of the picker
bar. When by the action of the pusher bar, the picker bar is pushed away from the
stump bar the opening of two gates of the stump bar are free (as they are not
ΓΟ
1177

page_text: obstructed by the hooks of the picker bar) and the thread can be made at will to pass
to the right or to the left of the hole of the stump bar in following the inclination
imparted to it by the fine bar.
When not so actuated, the hooks of the picker bar are situated in the middle of
the holes of the stump bar, preventing the thread from passing to the right of the
hole, and thus forming " one." In this case, the thread being passed through the
stump bar and fine bar, the latter is only actuated by the second movement of the fine
bar Jacquard (which movement only takes place when the picker bar has closed up
against the stump bar), in which position, the obstructing hook of the former causes
the thread to take up its position to the right of the space existing between it and
the contiguous hooks, and to bear against the right side thereof in following the
inclination to the right imparted to it by the fine bar, thus forming "one" in an
absolutely mechanical manner.
For making "two," the thread being passed through the stump bar and the fine
bar, the latter is actuated by the movement of the fine bar Jacquard, which takes
place when the pusher bar effects the before described action on the picker bar,
removing its hooks from the stump bar, and thus leaving a space in which the thread
can slide between the stump bar and picker bar, and assume a position to the right
of the hole of the stump bar in following the inclination to the right imparted to it
by the fine bar, in which position the thread makes "two."
For making stop," the thread being passed through the stump bar and fine bar as
before, and the fine bar having moved to the left, the thread will assume a position to
the left of the hole of the stump bar, in following the inclination to the left imparted
to it by the fine bar.
Unted this 27th day of Ion 1887
ABEL & IMRAY,
Agents for the Applicants.

page_text: Improvements in Tulle Frames.
We, EMILE DAVENIERE of Paris, France, Manufacturer and JAMES ROBINSON
HANCOCK of Nottingham, England, 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 enable "stop," "one," "two" to be made in one
movement by the action of the fine bars and the stump bars of a tulle frame combined
with mechanical additions as we will describe referring to the accompanying drawings,
shewing the stump bar, the pusher bar, the picker bar and the different positions of
the threads effecting "stop"
one or 'two." The fine bar Jacquard has two
distinct movements; the first takes place at the moment when the pusher bar moves
the picker bar from the stump har; the second takes place as soon as the pusher bar
lets the picker bar close upon the stump bar.
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Fig. 1 is a front view and Fig. 2 is a back view shewing the three bars combined,
a being the stump bar, b the pusher bar, and c the picker bar. In Fig. 1 the picker
bar c is closed before the action of the pusher bar 6. Fig. 3 shews in front and back
views the picker bar c opened after the action of the pusher bar b. Figs. 4, 5 and 6
shew respectively the stump bar a the pusher bar 6 and the picker bar c separately.
The stump bar a is perforated so as to have two full and two empty gates, on its lower
side there is a projection in order to give room for the pusher bar b, and a spring
presses the bars b and c against a so as to form one with it. The pusher bar 6 which
is placed between the stump bar and the picker bar, has on it at intervals inclined
projections m, which when acted on by a cam or the large thread Jacquard push the
picker bar c away from the stump bar a to let the thread pass right or left from the
hole of the stump bar. The projections m are so situated that, when the pusher bar b
does not move, they lodge in the openings between hooks of the picker bar c, but
when it moves they bear on the hooks pushing the picker bar away from the stump
bar, thus leaving free the two gate hole of the stump bar, and as the hook of the
picker bar then offers no obstruction, the thread can be directed right or left from
the hole of the stump bar as it may be inclined by the fine bar. The picker bar c is
placed in the middle of the stump bar hole and acts above as a hook which prevents
the thread from passing to the right of the hole, forming the "one," Fig. 7 is a front
view and Fig. 8 a back view shewing the combination of the "stop,"
one and
"two" after the action of the fine bars. Fig. 9 shews in perspective the picker bar
closed, and Fig. 10 shews it open.
"
"
For forming the " one," referring to Fig. 7 the thread being passed through the
stump bar and the fine bar, obeys only the second movement of the fine bar Jacquard
which takes place only once when the picker bar is closed against the stump bar as
shewn in Fig. 9. The thread goes to the right and bears against a hook in conse-
quence of the inclination given to it by the fine bar, and thus the
mechanically formed.
«one
73 is

page_text: For forming the "two," the thread 2 being passed through the stump bar and the
fine bar, the fine bar obeys the first action of the fine har Jacquard which takes place
at the moment when the pusher bar moves the picker bar away from the stump bar
as shewn in Fig. 10 leaving passage for thread to slide between the stump bar and the
picker bar to the right of the stump bar hole as determined by the inclination given
to it by the fine bar, the thread thus forming "two."
For forming the "stop," the thread 0 being passed through the stump bar and the
fine bar, when the fine bar moves to the left the thread is by the inclination drawn to
the left side of the stump bar hole, forming "stop."
"
As the stump bar, pusher bar, and picker bar can be shifted together to right or
left, a number of different combinations can be formed, " one," "two," three,"
"four" &c. by giving the fine bars movements such as give the required inclinations
to the threads.
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. In combination with the Jacquard bars of a tulle frame the stump bar, pusher
bar and picker bar constructed and operating substantially as herein described.
2. The herein described method of producing "stop," "one" and "two" on a tulle
frame by the combined action of the fine Jacquard with the stump, pusher and picker
bars referred to in the preceding claim.