US1507482A - Thread-guiding device for cotton knitting machines - Google Patents

Description

sept. z, 1924. 1,507,482 l C. HILSCHER THREAD GUIDING DEVICE FOR COTTON KNITTING MACHINES.

Filed Ault. 26 1921 .vll/ffl 1...... 11....

Patented Senn-2, 1924.

CURT. HILSC'HER, OF CHEMNITZ, GERMANY.

THREAD-GUIDING DEVICE FOR COTTON KNITTING .Application led August 26, 1921. Serial No. 495,811.

To all whom t may come/m.'-

Be it known that I, CUnT HTLSCHER, aciti. y

zen of the German Republic, residing at Chemnitz, Germany, have invented certain new and useful Improvements in a Thread- Guiding Device for Cotton Knitting Machines, of which the followingis a specification. f l.

This invention has for itsl object to bring automatically into the required working position, when stockings are to be produced upon the Cotton knitting machine, that thread guiding device which is required for the knitting of the rows of loops between the heel parts and to limit their course at the knitting of these rows in both working dir cotions. The invention has for its object to do away with the manual labour which had to be done hitherto for this special kind of work so that it is no longer necessary to stop the machine whereby the efficiency is increased considerably.

In order that the invention may be clearly understood I shall proceed to describe the same with reference to the accompanying drawing, wherein Figs. 1 and 2 are front elevations of the thread guiding device',

Fig. 3 is a' plan view of the same and Fig. 4 is a side elevation.

Fig. 5 illustrates diagrammatically the part of the lstocking which has to be provided with the rows mentioned.

The intermediate rows o (Fig. 5) are to be knitted at the beginning of the knitting of the heel parts b when the leg of the stocking has been knit already and these rows serve tov facilitate the subsequent running on of this part upon the needles when the foot of the stocking has to be knit. The thread-guide rail 6, designed for the knitting of these rows of loops carries one thread guide e for each row of needles (set). This thread-guide rail adopts, before it is operated, the position shown on Fig. 1 in which -the thread guide c is situated at the end of its greatest course. The adjustment and operation of this rail has to be effected in such a manner that the .thread guide e travels between the heel parts b (Fig. 5) in order to producethe rows c. With this object in view the well known counting device of the Cotton knitting `machine (not shown on the drawing) shifts first, when the last row of loops d of the leg is worked from left vto right, the well known slide la with driver-Z ofthe so-called change-head m, with the aidof a rod f (Fig. 4) and lever g, h with connecting member z', so that the driver which stands over the thread guide rail I5 gets over the thread guide rail 6 and engages with the forkl of the same which is formed by the'angle iron fn.. The next following odd row produced at the sinking of the loops in opposite direction for adjusting the thread guide for the knitting of the loop parts b (Fig. 5) is utilized to bring the thread guide e into the position required for the working of the rows 0, as the driver Z draws the rail 6 along inthe direction of the sinking (from rightL to left) until a stop r of said rail has reached the stop p in a fixed arm 0 (Fig. 2). The travel in the left hand direction is thus limited. kstop g of the thread-guide rail 6 serves for limiting the travel in the right hand direction, said stop having previously, during the movement of thread guide rail 6 in the left hand side direction, the spring controlled stop p', which, immediately after having been released by stop' is lowered again by the action of its spring so that this stop is now situated between the two lixed stops q and 1 whose mutual distance corresponds to the width of the rows o (Fig- 5) which have to be worked now simultaneously with the heel parts b. After the rows c have been knitted the thread guide rail 6 is thrown out of gear simply by the return fof the slide c and of its driver Z over the lthread guide rail 5 caused by the above mentioned counting device. The rail 6 will thus be stopped when the knitting of the heel parts b is being continued and the thread guide e will no longer feed the thread to the needles, the part c of the fabric being detached from the needles. After the heel parts have been finished, the thread guide rail 6 is released by hand to the initial position in similar manner as with the rails carrying the guides for the heel threads.

The stop o p serves for both stops g and v' as an abutment. As it is however originally not situated between these stops QJ' but in the position shown in Fig. 1, the stop p must be put out of operation when the stop g passes below the same. For this reason the stop is movably arranged on the arm o so that 1t can be raised by the' stop g.

I claim 1. An improved thread-guiding devicel for Cotton knitting machines for the produc- Y lixed on Said rail for determining the length of travel of said rail and a Stop on the machine within the range of travel of said rail, said stops on the auxiliary rail working together with said stop of the machine for determining the working travel of Said auxiliary thread guide rail.

2. An improved thread-guiding device for Cotton knitting machines for the production of stockings with two heel parts comprising in combination with the thread guide rails for the knitting of the legs, an auxiliary thread guide rail for the knitting of the rows of loops between the heel parts, stops for the ends of said thread guide rails, a stop iixed upon said auxiliary rail and havto be raised by said stop with the inclined surface when said rail is moving into the working position and a spring for controlling said `movable stop so that it descends an abutment for the second mentioned stop of the auxiliary rail.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

CURT HILSCHER. Witnesses:

KTE WEND, PAUL LEIGNER.

` at once after having been raised to serve as

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