US2625336A - Textile spindle - Google Patents

Description

1953 A. P. BROUILLARD 2,625,336

TEXTILE SPINDLE Filed July 6, 1950 INVENTOR. fl/b erf P B roa ZV/av'd A T TO RNGYS Patented Jan. 13, 1953 UNITED STATES PATENT OFFICE TEXTILE SPINDLE Albert P. Brouillard, Woonsocket, R. I. Application J 1115 6, 1950, Serial No. 172,205-

2 Claims.

This invention relates to improvements in a spindle for mules, twisters, winders and like textile machines.

Spindles for the above said machines are usually provided with a stop at the lower end thereof for the bobbin and this stop also provides frictional engagement with the inner surface of the bobbin to hold the bobbin in position and drive the same. This stop is usually of a frustoconical formation. Bobbins vary in diameter because of manufacturing tolerances and when positioned on said stops will vary in their distances from the lower end extremity thereof; consequently, the wind of the yarn or thread does not start at the same level on each bobbin with regard to the lower end thereof, nor will the wind extend to the same height on all the bobbins in a set thereof with regard to the upper end thereof. Therefore, there is a portion of the length of each bobbin free of yarn or threads which is available for winding yarn or thread thereon and this can be used if all the bobbins were seated at the same location on all of the spindles of a machine.

An object of the invention is to provide a spindle so constructed that the bobbins will be all seated at the same location on the spindles of a machine.

Another object of this invention is to provide a spindle so constructed that the bobbins will be resiliently held thereon.

Another object of this invention is to provide for reconstructing the existing spindles of a machine so that the bobbins will all be held at the same level on said spindles.

A more specific object of the invention is the provision of a bobbin holder which will firmly and resiliently hold a bobbin onto the spindle and which holder will be readily attached to or detached from the spindle.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is an elevational view of a portion of a spindle showing a core or bobbin in section held thereon;

Figure 2 is a sectional view taken substantially along line 2-2 of Figure 1;

Figure 3 is a central sectional view taken substantially along line 3-3 of Figure 2;

Figure 4 is a central sectional view of the body portion of the holder shown in Figure 3;

Figure 5 is a central sectional view of an end or closure member; and

Figure 6 is a sectional view forming part of the holder.

Referring to the drawings, I0 designates generally a portion of a textile spindle having a blade I I, the upper portion I2 of which is slightly tapered. A whorl I3 is fixed to the blade for rotating the same. The blade is positioned within a spindle base (not shown) and finds bearing therein in a usual manner. From the whorl I3 there extends upwardly a bobbin stop I4 which is of frustoconical formation so as to tightly receive thereon the lower portion of a core or bobbin I 5 on which yarn, thread, or similar material is wound to package the same. There are a plurality of these spindles on each machine and the construction thereof so far described is usual manufacture and well known in the textile art.

Bobbins, as previously stated, vary in inner diameters and one of larger diameter will seat further down on the stop I4 than a bobbin of smaller inner diameter. The builder mechanism of the machine is set to start the wind of the yarn at a level determined by the bobbin seating the least depth on the said stop, and the dolfing is made when the bobbin is filled to a height which is determined by the bobbin extending further down on the stop I4. Thus, the entire available length of the bobbin to package yarn thereon is not utilized on all of the bobbins. Further, this makes for non-uniformity of the yarn package.

In carrying out my invention, I provide an abutment or seat I6 at the lower end of the stop I4. The seat I6 may be formed of the same piece of material as the stop I4 but may be conveniently made in the form of a ring I 1, as shown in the drawing, and sweated or otherwise secured in position on the stop I I. The location of the upper edge of the ring I! is positioned sufficiently upwardly from the lower extremity of the stop I4 so that the diameter of the stop at the location of the upper edge of the ring ,I1 will be substantially equal to the bobbins of least diameter so as to permit all bobbins which are used to be easily positioned to engage the seat I! and the engagement of the inner surface of the bobbins with the stop I4 will be sufilcient .to center the bobbin on the spindle.

In order to firmly hold the bobbin on the spindle I0 to be rotated therewith, I provide a member or bobbin holder designated generally I8 which is mounted on the spindle at the upper portion of the blade I2. The member I8 or bobbin holder comprises a cylindrical body I9 (see Figure 4) having a central opening 20, the Walls of which are tapered to correspond to the taper of the blade I2. The body I9 is reduced.

of a bowed spring at each end as at 2|, providing shoulders 22 and is further reduced as at 23 providing second shoulders 24. The body 18 also has a plurality of longitudinally or axially extending grooves 25 in the outer surface thereof which are equally spaced from each other, as shown in Figure 2. An outwardly bowed spring 26 which is arcuate in cross section (see Figure 2) and is also longitudinally arcuate as in Figures 3 or 6 and has the opposite end portions 21 thereof extending straight and in the same plane with each other. One spring 26 is positioned in each of the said grooves 25. A cup member 28 having an outer diameter equal to the diameter of the body 19 is positioned at each end of the body to rest upon the shoulders 24 and has a central opening 29 through which extends the reduced portion 23, the portions 23 being thereafter upset in the fashion of a rivet to firmly fasten the members 28 at the ends of the body I9. The members 28 have a flange 3| to extend about the reduced portions 21 and have firm engagement therewith, and the free edge of said flange rests upon the shoulder 22, thus providing a pocket 30 at each end of the grooves 25 and extending in continuation thereof. The end portion 21 of the spring 25 extends into the pocket 30 to confine the spring within the grooves. The high point 26' of the springs normally extends beyond the outer surface of the body l9 and the springs 28 are of a length less than the length of the grooves so as to have free axial movement therein to permit the springs to contract.

The holder I8 is assembled with the spindle by inserting the upper portion of the blade into the central tapered opening 20 to frictionally grip said blade which will also position said holder to be concentric with the stop I4. The diameter of the body I9 is chosen to be slightly less than the inner diameter of the core or bobbin so that the same will be firmly held by the action of the spring 26 only.

When the core or bobbin is slid onto the spindle, the said bobbin will rest upon the seat [6 and be centered by the stop 14 and holder (8 and the springs in said holder l8 will also provide for firmly and resiliently holding the upper portion of the bobbin to provide a driving relationship between the said spindle and bobbin.

It will be apparent that I have disclosed a spindle construction wherein the bobbins of varying diameters will be seated at the same level on all of the spindles of a machine and that the upper portion of the bobbins will be additionally resiliently supported to provide a drive between the spindle proper and the bobbin.

I claim:

1. A holder for bobbins and the like comprising a cylindrical body having a central tapered bore and a plurality of equidistant longitudinal grooves formed in the outer surface thereof, a closure cup received at each end of said body having a flange extending over the end portions of said grooves to form pockets at each end of said grooves in continuation thereof and longitudinally bowed springs arcuate in lateral cross section and of a length greater than the distance between said pockets positioned in each of said grooves and with the end portions of said springs extending into said pockets to confine and hold portions of said springs within said grooves while the bowed portion extends outwardly thereby, and said pockets permitting longitudinal movement of at least one end of the springs as flexing occurs.

2. A holder for bobbins and the like as set forth in claim 1 wherein each cup is secured by a portion of the body being headed over the cup.

ALBERT P. BROUILLARD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,148,819 Killian Feb. 28, 1939 2,417,525 Smith Mar. 18, 1947 FOREIGN PATENTS Number Country Date 151,806 Great Britain Oct. 7, 1920 763,507 France Feb. 12, 1934

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