US1075461A - Spinning-spindle. - Google Patents

Description

C. H. CHAPMANl SPINNING SPINDLE.

APPLICATION FILED JAN.5, 1910,

i., v Patented 0@t.14,1913.

' To all whom t may concern MAN, a. citizen of the United States,

l bobbinoff the spindle.

'EEE n g PATEN CHRLES H. CHAPMAN, or wrNcHEsrnn,

MASSACHUSETTS, ASSIGNOR TO CHAPVIPN j or MAINE Application le. January 5, 1910.

H. Gnarresiding at Winchester, in the,l county of Middlesex and State of Massachusetts, have invented a certain new and useful Improvement in Spinning-spindles, of which the following is a full, clear, and exact description.

The object of this invention is to provide a bobbin-holder and a whirl-base and whirl for spinning spindles, of such character that in applying them to the spindle, and in use, the spindle will not be sprung out of equilibrium and perfect alinement.

In spinning spindles now in general use, an upwardly and outwardly haring cup, forming a part of the whirl or whirl-base, is made to receive and hold by frictional contact the lower and externally tapered endof the bobbing and inasmuch as the bobbins are not perfectly true, and are subject to change incident to use and barometric andthermometric variations, and it is impossible in practice to prevent them from getting out of true, it follows that when such an imperfect bobbin is forced on to the spindle, the spindle is sprung out of erfect Aalinement, thereby causing .the spindle to take on a vibratory motion, which vBef it known that 1, CHARLES tends to lower the .speed of the spindle and produce slack yarn, even though the bobb-in is forced down and into the frictional tapered cupi with suflicient force to prevent it from working loose, and when so forced onto the spindle it makes it very hard to pull the The cup-shaped construction tends to' cramp the spindle out. of perfect alinement, resulting, as before stated, in causing the spindle to take on a vibratory motion, detrimental to the life of the spindle and the quality of the yarn spun.

One important feature of the present inhollow whirl-base, havvention consists 1n a ing a cylindrical extension internally coun-v terbored so as to have only a small or short direct contact with the spindle, Aand a .whirl fitted in said whirl-base, with a disk interposed and Aforcibly fitted to the spindle some distance below the plane of'contact of the cylindrical extension of the whirl-base with the spindle, sothat, in connection withthe bobbin-holder, all possibility of the spindle Specification of Letters Patent.

tical plane SPINNING-SPINDLE.

Patented Cet. 14, 1913.

serial No. 536,565.

v blade being sprung ont of perfect alinement is overcome.

n the accompanying drawings, illustrating the invention, in the several figures of which like partsare similarly designated, Figure l is a llongitudinal sect-ion, the spindle being in elevation, and the spindle and bobbin broken out. Fig. 2 isa plan view of the disk. Fig. 8 is an elevation of Athe bobbin-holder. Fig. a is a bottom plan view of the bobbin-holder.

The spindle l, may be of any desired co-nstruct-ion, and in any of the well-known spindle supports. The bobbin Q, is constructed wardly tapered4 hole at its upper end to fit the cylindrical portion 3 of the spindle l, with an easy slip fit, and said bobbin has no other direct contact with the' spindle. T he lower end of the bobbin 2 is counterbored at a on an arc of a circle described in a verto lit the bobbin-holder 5. One form of bobbin-holder which may be used in connection with the present invention, is composed of the cylindrical portion G, and spring portions 7, which terminate in a hollow spherical segment 8, coiniiilemental to and forming a seat for the arcual portion l of the bolil'; he spring portions 7 are shown as four number, although any desired number may be pro-vided, and they are formed by slitting the body 0f the bobbinholder longitudinally, as shown at 9. rlfhis segmental portion 8 of the bobbin-holder and the arcual portion t of a sort of ball or universal joint for indirectly connecting the bobbin at that point with the spindle. The bobbin-holder approximates a bell in shape, and the spring port-ions 7 partake of the curvature of the body so as to insure the necessary rigidity or resistance. The cylindrical portion 6 is of Sutlicient length to' hold the segmental portion concentric with the spindle, and its wall is thin so as to prevent any possibility ofI springing the spindle blade when said cylindrical portion is forced down uponthe spindle. The` cylindrical portion is the only part of the bobbinholder that comes into contact with the spindle. x

The whirl-base 10 is hollow, and provided with a cylindrical extension 11, counterbored from the bottom lupwardly so as to leave with an upthe bobbin forni .65 is adapted to fit and rotate into the whirl-base.

It is to be noted that the bobbin-holder and whirl-base are out of contact with one another; and that'the extent of contact of the whirl-base cwith the spindle by means of its portion 12 and disk 13 is so short longitudinally, and these two planes of contact are so spaced apart, that the whirl-base and Whirl are held firmly on the spindle and concentrically with it and there is overcome any possibility 'of springing the spindle blade out of perfect alinement, thereby obviating they necessity of straightening the spindle blade after pressing on the whirlbase. With the ordinary whirl-base, the walls of the shank are much thicker than the walls of the shank of my whirl-base, and they take a longitudinal bearing on the spindleblade of. much greater length than mine. With a whirl-base constructed with the walls of its shank thick and taking, a bearing of greater length on the spindle blade, any imperfections in the hole of the shank of the whirl-base, or of that part of the spindle blade taking bearing contact in the hole of the shank, tend to and will throw the spindle blade out of perfect alinement, necessitating the straightening of thelspindle blade after the whirlfbase is forced on to the spindle; and it is tobe remembered that the term straightening, as herein applied, simply means equalizing and balancing what is and still remains an imperfect spindle blade.

The segmentalseat 8 of the bobbin-holder yields to the downward pressure of the bobbin and readily enters the lower end of the bobbin and lsprings out into' contact with the walls of the arcual portion 4; thereof. The tension of the spring portions 7 is such as to permit the bobbin to be readily pulled oli' of the spindle, and yet it is suliicient to portion 12, whereby it` yany direction, to

to rotate with the spindle, while preventing it from rising from its seat by' reason of any vibratory motion of the spindle. It will be readily seen that with this spring bobbin-holder engaging the lower of a ybobbin which has at its upper end a loose slip lit with the spindle, the upper end of the bobbin could be moved laterally in a limited extent without cramping the spindle blade, and this lateral cause the bobbin freedom of the. bobbin prevents the possibility of the'spindle blade being sprung out of its perfect equilibrium.

The disk may be dispensed lwith and the hole through the whirl-base counterbored to it the spindle at each end of thehole, sub-v stantially the same as when but as a matter of economy, of the disk.

lVhat I claim is 1. A spindle, a whirl-base having its shank. or upper portion counterbored and a vchamber in its lower end, and a disk and whirl arranged in said chamber, said whirlbase adapted to be securely attached to the spindle by the upper end of its shank and the disk.

2. A spindle, a whirl-base having its shank counterbored and a disk at the lower end of said counterbore, said .whirl-base securely attached to the spindle by the upper end of its shank and the said disk, combined with a bobbin-holder, securely' attached to the spindle above the whirl-base and sleeving the counterbored shank of the Whirl-base and adapted to engage the lower end of a bobbin.

3. A spindle, a whirl-base constructed with two spindle-engaging elements to fit the spindle at two points, one of which is above and the other below the bottom rest for the bobbin and out of Contact with the spindle between said points.

In testimony whereof I have hereunto set my hand this 28th day of December, A. D. 1909.

the disk is used; I prefer the use CHARLES I-I. CHAPMAN.

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