AN IMPROVED APPARATUS FOR DRESSING OR PREPARING YARNS OR MATERIALS IN THE PROCESS OF COLOURING OR DYEING WOOL, COTTON, SILK, AND OTHER FIBROUS SUBSTANCE."
Year: 1877

page_text: PROVISIONAL SPECIFICATION left by Julien Paty at the Office of the
Commissioners of Patents on the 17th September 1877.
"
JULIEN PATY, of Boulevard de Strasbourg, No. 23, Manufacturer. AN IMPROVED
APPARATUS FOR DRESSING OR PREPARING YARNS OR MATERIALS IN THE PROCESS
OF COLOURING OR DYEING WOOL, COTTON, SILK, AND OTHER FIBROUS SUBSTANCE."
My Invention relates to an apparatus whereby hanks or skeins of yarn, thread,
or other filaments, while in a stretched condition, have portions of their length
covered at intervals apart with threads wound closely together upon the hank or
skein, so that when subjecting the hank while in this condition to a dye bath the
portions covered as above described are not acted upon by the dye, and thus the
hanks are rendered party-coloured.
For this purpose two brackets similar to the headstocks of a lathe are mounted on
a slotted frame so that they can slide thereon. Each headstock carries a spindle
terminating in a hook, the two hooks being made to face each other so as to receive
upon them the loops of the bank to be operated upon. The two headstocks having
been moved away from each other on the framing so as to hold the bank in a
stretched condition upon the hooks, are then fixed by screw bolts, and the hank is
then tightly stretched by drawing the one hook away from the other by means of a
screw spindle carried by the headstock and connected to the spindle of the hook
by means of a swivel joint so as to allow of the screw spindle being rotated while
the hook spindle is stationary, and vice versa. The said hook spindle passes through
a tubular spindle running in bearings in the headstock, the former having a longi-
tudinal groove, into which a feather in the latter fits, so that the hook spindle can
slide through the tubular spindle but must rotate with it. Upon the tubular spindle
and upon the hook spindle of the opposite headstock are spur wheels, in gear with
which are pinions fixed on a shaft extending along the framing, so that on rotating
this shaft by hand, or by any other suitable power, the two hooks, and with them
the stretched hank, have a revolving motion imparted to them. Parallel with the
hook spindles and driving shaft is mounted a screw spindle, extending from the one
headstock to the other, and having on it a series of slides at distances apart, capable
of being caused by the rotation of the screw spindle to travel along simultaneously in
guides, the screw spindle being geared to the driving spindle, so that it performs one
revolution for every revolution of the hooks and hank. On each slide is mounted a pair

page_text: of nipping jaws with caoutchouc nipping surfaces, holding between them a thread
proceeding from a bobbin or ball. The slides with their several threads being
adjusted at distances apart along the screw spindle, corresponding to the distances at
which it is desired to effect the before-described covering in of the hank. The ends
of the threads are attached to the latter, and rotary motion is then imparted to the
hooks, whereby, as the hank revolves, the several threads are wound tightly round
it at the desired distances apart, the pitch of the thread of the screw spindle being
made equal to the thickness of the thread wound on, so that at every revolution
the slides will be advanced a distance equal to the thickness of the thread, whereby
the latter will be wound closely on the hank. When a sufficient portion of the
latter has thus been covered the threads are severed from the bobbin and secured;
and the bank is removed to be treated in the dye bath, as described. The nip of
the holding jaws is so regulated as to impart to the threads the requisite tension
for winding them tightly on the.hank.
It will be evident that two or more sets of the before-described hooks, with their
spindles and gear, may be arranged side by side on one and the same framing, so
as to operate on two or more hanks at the same time.