US970745A - Bobbin-holder for spinning-spindles. - Google Patents

Description

P. OSKRIT. BOBBIN HOLDER FOR SPINNING SPINDLES.

APPLICATION FILED JAN. 28, 1909.

Patented Sept. '20, 1910.

WITNESSESJI I ATTORNEY.

FRANK OSKRI'I, 0F PITTSFIELD, MASSACHUSETTS.

BQBBIN-HOLZDER- FOR SPINNING-SPINDLES.

Specification of Letters Patent.

Patented Sept. 20, 1910.

Application filed January 28, 1909. Serial No. 474.685.

To all whom it may concem:

Be it known that I, FRANK Osnnrr, a citizen of the United States, residing at Pittsfield, in the county of Berkshire and State of Massachusetts, have invented certain new and useful Improvements in Bobbin-Holders for Spinning-Spindles, of which the following is a specification.

, This invention relates to an improved holder for securing the bobbin on the spindle of spinning machines, and comprises a detachable, adjustable spring sleeve frictionally secured to the spindle at a point near the lower end of the bobbin, and is so constructed and arranged as to effectually support the bobbin without projecting below the bottom of the same.

The rapid accumulation of threads around the spindle below the bobbin due to the process of dotting necessitates their removal from time to time, usually by the aid of a sharp knife, and this manner of removal is considerably interfered with in all cases where a bobbin-holder is employed which has any portion, particularly of metal, extending below the bottom of the bobbin and liable to contact with the blade of the knife. The present device is designed, therefore, to obviate this practical objection, and has, for further objects, the provision of two separate planes of yielding engagement with the bobbin, each of which is independent of the other, and, also, in a holder wholly inclosed by the bobbin, of auxiliary means for preventing threads or otherextraneous substances from working up within the same.

The invention consists in the construction, combination, and arrangement of parts, as hereinafter described and claimed, reference being had to the drawings, forming a part of this specification, in which like characters of reference indicate like parts in each of the views, and in which- Figure 1 is a longitudinal sectional view of a spinning spindle with a bobbin-holder thereon constructed in accordance with my invention, the bobbin being indicated in dotted lines; Fig. 2 is a detail perspective side view of the holder; Fig. 3 is a similar view of the clamping collar; and Fig. 4 is a detail developed view of the body-portion of the holder.

The specific form of embodiment of my invention herein shown comprises a flat, relatively thin, metal stam ing which is bent into a tubular shape or s eeve and consists of a plurality of longitudinally extended, vertical strips or springs 6 havin their corresponding ends united by preferably integral cross strips or bands 7 and 9, the band 7 being provided with an integral outwardly turned flange 8. When the stamping assumes a tubular form the ends of the bands 7 and 9 are respectively brought into approximate free relation with sufficient space intervening to allow room for a sh ht, expansion or contraction when the hol er is adjusted to the spindle 10. The springs 6 are then curved longitudinally outward and a collar 11 is drawn down over the sleeve to a point somewhat above the middle thereof, the collar being of a predetermined size adapted to draw the springs 6 inward at this point, while those portions of the springs above and below the collar are each provided with crowned centers adapted to separately engage the bobbin 5 when inserted upon the holder.

When the holder is placed over the spindle 10 it is drawn down to a point where it firmly engages the spindle under the collar 11, the latterbeing made of such a diameter with reference to the tapering form of the spindle that the bottom of the holder, when in operative position, is freely above the bottom of the bobbin. The ends of the holder at bands 7 and 9 are made somewhat larger in diameter than the spindle at corresponding points so as to allow a free adjustment thereof when the springs 6 are extended by the compression of the bobbin. The flange 8 at the bottom of the holder is designed to substantially close the opening intervening the spindle and the inner walls of the bobbin for the purpose of preventing threads and other foreign substances from working up therebetween as before mentioned. Thus it will be seen that in operation the collar 11 effectually supports the holder on the spindle and by its clamping engagement with the several springs at or near their centers separates them into two independent portions, either of which contributes support to the bobbin without the cooperation of the other. As the hole in the bobbin is graduated upward the up er portion of the holder is made shorter, and consequently of less diameter at the crowned center than the lower portion, to correspond with the difference in the sizes of the hole in the bobbin at these points.

I am aware that bobbin-holders of sheetmetal construction have heretofore been devised. I do not, therefore, claim such construction broadly, but

l/Vhat I do claim, and desire to secure by Letters Patent, is I 1. As an article of manufacture, a bobbinholder adapted to be set over a spindle and comprising a metal sleeve formed with a plurality of longitudinally-arranged resilient elements, and 'a clamping device arranged centrally about the sleeve to secure the sleeve on the spindle whereby the portions of said resilient elements above and below the clamping device constitute independent spring sections for the support of the bobbin.

2; A bobbin-holder adapted to be set over a spindle and wholly inclosed by the bobbin, comprising a spring sleeve having each of its ends movable relatively to the spindle and adapted to be adjusted with relation thereto when the bobbin is set over the sleeve,

and clamping means provided centrally on the sleeve for securing the sleeve in position on the spindle, the portions of the sleeve above and below the clamping means form I ing independent sections adapted to sepa'-. I rately engage the bobbin.

the sleeve for adjustably securing the sleeve ii in position on the spindle and adapted to form independent. spring sectionsof said resilient elements above and below the collar.

In testimony whereof I hereunto afliX my signature in presence of twowltnesses.

Witnesses: V

EDWARD T. SOULLY, J No. J. WHITTLESEY.

FRANK osKRIT.; i

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