US1928253A - Twisting cap - Google Patents

Description

Sept. 26, 1933. R. GoLLoNG TWISTING CAP Filed Aug. 20, 1932 UNITED STATES PATENT OFFICE 1,928,253 TWIsTING CAP'- My present invention Richard Gollong, Johnson City,

American Glanzstoff Corporation,

Tenn., assignor New York, N. Y., a corporation of Delaware Application August 20, 1932. Serial No. 629,690

3 Claims.

relates .to the provision of an improved cap adapted for use with a twisting machine.

In the handling of articial and kindred threads and filaments great difficulty has heretofore been encountered in retaining the cap on the spindle and against the thereon. Since the spi spool or bobbin mounted ndle and spool must be rotated at a high rate of speed, the caps have a tendency to y olf the spindle causing both damage to the caps and als ments wound on the spools.

o to the threads or fila- The caps which have heretofore been used are complicated in construction and, in use in operation.

Accordingly, it is an have been unsatisfactory object of my present invention to provide an improved cap having associated therewith means to is efficient in operation.

engage the spool which Another object of my present invention is to provide an improved cap having associated therewith a ring having a plurality of means which will engage a spool mounted dle which. will prevent the spindle when the same is on a suitable spincap from flying 01T rotated at the high the rate of speed necessary to impart the desired twist to the thread or filaments on the spool.

A further object of my to provide an improved cap machine spindle and having a ring carrying a pluralit-y present invention is for use on a twisting associated therewith of locking or holding means which, when the spindle is rotated at a high rate of speed, are moved by the centrifugal action of the rotating spindle into engagement with a spool mounted on said spindle.

These and other objects of my present invention will become more apparent from a study of the following description and the drawing in which Fig. 1 is a sectional View of my improved cap and locking means;

Fig. 2 is a top plan view of the same; and

Fig. 3 is a view of the locking ring showing in detail the construction holding members.

of the locking and Referring now more particularly to the drawing, I have shown in detail a preferred embodiin which the spindle 12 of a twisting machine (not shown) is adapted to t. The cap is circular in shape and is pr cumferential .wall 13. reversely bent as indicat ovided With an outer cir- The edge of the wall is ed at 14 providing a suitable seat 15 for the beaded edge of the spool 16. The wall 13 is provided at spaced intervals with a plurality of openings 17 for a purpose to be hereinafter described. These openings are preferably located at intervals of 90 around the cap.

The locking means, shown in detail in Fig. 3, comprises an annular ring 18 adapted to t around the hub of the cap as is clearly indicated in Fig. 1. This ring may be made of soft rubber, rubber composition, or any other suitable material of 6J resilient nature. The ring is provided at suitable intervals preferably at 90 intervals with resilient lugs or projections 19 adapted to t snugly in and project through the openings 17 formed in the cap. To position the ring firmly on the cap there is provided a plurality of lugs or projections 20 which, when the ring is in place on the cap with the lugs 19 projecting through the openings formed therein, bear against the inner side of the wan 13.

In operation the ring is secured in place in the cap and the cap is then placed on the spindle, the beaded edge of the spool fitting in the seat formed in the cap. It will be noted that the lugs or projections 20 projecting through the open- 80 ings provided therefor frictionally engage the inner wall of the spool. Upon rotation of the spindle the centrifugal force generated by such rotation forces the ring more rmly against the inner Wall of the cap and consequently the lugs or projectons are moved outwardly and are pressed more rmly against the inner surface of the spool. Thus with the increase in rotation of the spindle the more positively will the locking means function.

From the above description it will readily be appreciated that I have devised a cap having a simple and efficient locking means which will not loosen when rotated at a high rate of speed but, on the contrary, will be held more rmly against the spool.

While a preferred embodiment of the apparatus to be used in carrying out my invention has been described, it is to be understood that many changes may be made in the construction of the device without departing from the spirit of my invention or the scope of the appended claims.

What is claimed as new is:

l. A spool holder comprising a cap having an upstanding marginal rim provided with a plurality of openings formed therein and having ,a hub portion adapted to receive a spindle, an annular ring positioned on said cap provided with a plurality of projections, alternate projections bearing against said rim, the remaining prollo jections projecting through said openings and adapted to engage a spool.

2. In a twisting machine, a spindle, a spool mounted thereon, a cap for holding said spool on said spindle comprising a body portion having an upstanding marginal rim provided with a plurality of spaced openings, a ring positioned on said body portion and provided with means projecting through said openings and locking said cap to said spool upon rotation of said spindle, said ring also being provided with a` plurality of projections engaging said marginal rim between said openings.

3. A spool holder comprising a cap having an RICHARD GOLLONG.

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