Festoon Mechanism for Shuttle Embroidery Machines.
Year: 1898

page_text: Date of Application, 3rd Nov., 1898
Complete Specification Left, 25th July, 1899-Accepted, 21st Oct., 1899
PROVISIONAL SPECIFICATION.
Festoon Mechanism for Shuttle Embroidery Machines.
I, THOMAS RICHARD SHILLITO, of 15, Tooks Court, London, E.C., Engineer, do
hereby declare the nature of this invention, a communication to me from abroad
by the Chemnitzer Wirkwaaren Maschinenfabrik (vormals Schubert & Salzer),
of Chemnitz, Saxony, to be as follows:-
-
In this invention double thread catchers are fixed, in a position corresponding
to that of the embroidery needles, to a horizontal bar attached to arms carried on
an upper spindle of the machine. Intermediate of this spindle and the main
driving spindle is the festoon spindle which through a lever, connecting rod,
roller, and excentric communicates periodical oscillations to the upper spindle to
which a longitudinal movement is also communicated from the festoon spindle
through an excentric or cam mechanism and a vertical intermediate spindle. The
festoon spindle is driven from the main spindle through gearing in the propor-
tion of one revolution of the former to two of the latter.
The embroidery needles being driven from the main spindle in the usual way,
the festoon mechanism is also operated, and in the manner that at the state of
rest time of the needles the double thread catchers are moved by the said excen-
trics on the festoon spindle from their highest position downwards and to the
right hand whereupon the needle threads pass to the right and into a slot in the
thread catchers. The needles perform the outer stitch, the fabric is raised for
forming the loop, the needles at once passing into it, the thread catchers then
passing from their loops back into their commencing position. The needles finish
the commenced stitch and by tightening the thread the festoon is produced.
Instead of toothed gearing for driving the festoon spindle chain wheels and a
chain may be employed according to the relative positions of the main and fes-
toon spindles.
Dated this 3rd day of November 1898.
THOMAS R. SHILLITO,
15, Tooks Court, London, E.C.
Festoon Mechanism for Shuttle Embroidery Machines.
I, THOMAS RICHARD SHILLITO, of 15, Tooks Court, London, E.C., Engineer, do
hereby declare the nature of this invention, a communication to me from abroad
by the Chemnitzer Wirkwaaren Maschinenfabrik (vormals Schubert & Salzer),
of Chemnitz, Saxony, and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement: -
This invention has for object to provide means by which, in shuttle em-
broidery machines, the festoon loops are formed more easily and surely than is the
case by hitherto known arrangements for this purpose in like machines.
077

page_text: The greater ease and sureness of action is obtained by reason of the peculiar
formation of the thread catchers which are double in the sense that in front they
are finger and at back rib shaped with a slot or recess between the finger and the
rib for receiving the embroidery needle thread requisite for forming the loop, the
length of the thread for this purpose being as short as practicable.
In the accompanying drawing Fig. 1 is a side view of a portion of an em-
broidery machine with the invention applied thereto; Fig. 2 a vertical cross sec-
tion of the same; Fig. 3 a thread catcher in three views; and Figs. 4, 5, 6, each
shewing in two views a thread catcher in different working positions relatively
to its needle.
a are the thread catchers fixed, in a position corresponding to that of the em-
broidery needles n, to a horizontal bar b attached to arms h, fixed on spindles w.
These spindles are actuated from the main spindle A through toothed wheels i¹, 23,
spindle B, eccentric E, roller r, connecting rod z and levers h¹ so that said arms
make periodical up and down oscillations, whilst on the other hand a reciprocating
longitudinal movement is given to said spindles w with the arms h through an
eccentric or cam P, roller i, lever h², vertical spindle w and, levers h³.
The thread catchers a in their downward oscillating movement (Fig. 4) seize
with the finger the needle thread and draw it to the right (Fig. 5) whereupon
it engages in the slot f of the thread catcher and the first stitch of the needle n
can be made above the finger a (Fig. 5).
In the movement, thereupon following, of the fabric upwards, the thread
catcher a (Fig. 6) remains in the position it has just taken and therefore holds
the thread formed to a loop m until the needle n (Fig. 6) has pierced between
the loop for the second time into the fabric. It then moves laterally to the right
out of the loop into its commencing position (Fig. 4), after which movement the
festoon is, with the completion of the stitch, completed, (Fig. 6).
Having now particularly described and ascertained the nature of said invention
and in what manner the same is to be performed, as communicated to me by my
foreign correspondents, I declare that what I claim is: ; —
Festoon mechanism for shuttle embroidery machines, in which a precise and
sure taking up of the necessary thread, fed by the embroidery needle n for the
formation of the festoon loop m is attained by means of a thread catcher a pro-
vided with a finger x and a slot or groove f, substantially as described and shewn.
Dated this 25th day of July 1899.
THOMAS R. SHILLITO,
15, Tooks Court, London, E.C.