US206375A - Joseph - Google Patents

Description

J. C. WHITE.y Bobbin-Wnder for SeWmg-Maohnes.

No. 206,375. 'Patented-July 23,1878.

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JOSEPH O. 'IlITE, OF NIHV YORK, N. Y.

IMPROVEMENT IN BOBBlN-WINDERSVFOR SEWING-MACHINES.

Specification orniing part of Letters Patent No. 206,375, dated July 23,1878; application filed v `November 21,1877.

To all whom it may concern: t

Be it known that I, J osnrn C. WHITE, of the city, county, and State of New York, have invented a new and useful Improvement iu Bobbin-XVinders for Sewing-Machines; and I do declare that the following is a clea-r and exa-ct description of the same, reference being had to the accompanying drawings, forming a part of this specification.

The object ot' my invention is to produce a winder that shall wind any grade of cotton thread upon the bobbins of sewing-machines in the same uniform manner as it is now wound upon spools.

The machine is so constructed that it can be attached to any of the principal sewingmachines now in use.

Referring to the drawings. Figure I is a front view of my invention. Fig. II is aplan view of the same. Fig. III is a sectional view taken on line as ar, Fig. I.

Letter A represents the bed-plate, having the lug a and the two upright-s or standards A1 A2, all of which are made of metal. The lug a is provided with a hole, through which a bolt passes to secure the winder to the bed of the sewing-machine. (Not shown.) The tops of the standards A1 Al are provided with the journal-bearings a2 a3. In the bearing a2 revolves the axle B, having on its inner end a hub or collar, b, which serves a twofold purpose: first, to assist in holding said axle in its place; second, to hold one end of the bobbin. I), for which purpose it is provided with a cavity, b', as shown in Fig. I. To. the other end of axle B is keyed a pulley, C, which has a groove, c, in which is placed the rubber friction-ring O.

When it is desired to give motion to the winder, this pulley C is placed against the ily-wheel of a sewing-machine, the rubber ring affcrdin g sufficient friction to cause said pulley to rotate.

The other bearing, a3, on standard A2, car ries the stem E, which is forced inward by the spring c. The inner end of this stem is provided with a cavity, c', in which is placed and permitted freely to rotate the axle or pivot d of the bobbin l). The other end of the stem E has a knob, c2, by the aid of which the said stem can be drawn out ard, so as to place a bobbin in the winder.

By this arrangement the bobbiu is easily attached and detached, and firmly held in the winder while it is being lled.

F is a slidin g frame or block, supported and sliding upon the rods Gr Gr', which are held in the standards A1 A2. The lower part of this sliding block is provided with an opening, 1", in which is placed the reversible follower or mover II, provided with arms h1 and 71.2, extended out from the block F. This follower is supported upon the rod G, a-nd also allowed to slide and oscillate upon the same.

rIlhe outer and under sides of the arms h1 h2 are semicircular in shape, (see Fig. IIL) and are provided with screwthreads h", which correspond with the threads ion the worm-shafts I I', which have their journals t" in the standards A1 A2. The object of these worm-shafts is to give motion to the sliding block F, which is accomplished by bringing either of the arms h1 h2 of the follower down upon either ot' the shafts I I'.

To hold either of the arms h1 h2 down upon the said shafts, I form on the under side of the follower H a lug, h6, which is intended to slide on either side of a guide-piece, a, formed upon the top of the bed-plate A.l The length of this guide-piece is or must be according to the length of the bobbin.

It is obvious that when arm h1 is on sha-ft l the lug h6 is on side a of guide-piece a, and in consequence thereof the rm is held firmly down upon the shaft. The same is true when arm h2 is on shaft I', with the difference that lug h6 is on side a9 of the guide-piece.

To the top of the sliding block F is fastened the bent arm f1, which is intended to carry the threadguide f2 and spring-presser f. The object of this presser is to hold the thread firmly upon the bobbin while being wound upon the same, so as to prevent displacement, and also to give uniformity of thickness tothe different layers of thread.

J is an arm, fastened to one of the standards, for holding the spool of cotton or thread K, which is to be held on said arm in the same manner as it is usually held on the sewingmachine. y

To the outer end of the worin-shaft I is keyed a conical pulley, L, which receives its motion from the conical hub or pulley C, on shaft or axle B, through the intermediary of a beit, N.

As there are different grades of cotton, it is necessary, therefore, that the speed of the worm-shafts I I', and consequently the movement of the sliding block F, should vary accordingly; and to accomplish this, I make the hub C' and pulley L conical in shape, (see Figs. I and IL) and cut around the circumference of said hub and pulley a number of grooves, ci and Z'. The number of these grooves will be governed according to the different grades of cotton to be used.

Motion is given to worm-shaft I' from shaft I through the cog-wheels W WV, placed, respectively, on shafts I I. The operation of my machine is as follows: First place the bobbin D between the hub or shoulder I) and stem E, as shown in Figs. I and II.V Then place the sliding block F in the position shown in 'Fig'. I. Passthe thread of cotton from spool K through the hole j in arm J, also over the guide f2, and then fasten it to the bobbin by passing it through the slot d5 in the head d". The machine is now ready to move.

As motion is com nuinicated to the wheel C, as before stated, the bobbin is caused to rotate, and also the worm-shafts I I'. Motion is likewise given to the sliding block F by the shaft I, acting upon the arm h1 of the follower II. The movement of this block is j ust enough to permit the thread of cotton to be wound uniformly upon the bobbin.

I/Vhen the sliding block has traveled the length of the bobbin, the arm h1 is lifted from the shaft I by the pin or lug i* on said shaft,

which movement causes the lug h6 (which, during the movement of the sliding block, has been on side a8 of guide-piece a6) tov be shifted to side a, and the arm h2 to be thrown over to and held down upon the shaft I', which, rotating in an opposite direction, will cause the sliding block to move in an opposite direction across the bobbin.

IV hen the sliding block has again traveled across the bobbin, the arm h2 is lifted from shaft I' by pin i9, and the lug h6 again shifted to side a, and the arm h1 again brought down upon shaft I, where it was when the machine was set in motion.

By this arrangement the thread of cotton is automatically wound in uniform layers upon the bobbin. Y

Having thus described my invention, I dcsire to claim- 1. The sliding block F, provided with the arm f1, sprin g-presser f3, guidej'z, and opening f, substantially as and for the purpose set forth.

2. The follower I-I, provided with the arms h1 h2 and lug It, in combination with the wormshafts I I', with pins i* i9, guide-piece c6, and sliding block F, substantially as and for the purpose set forth.

3. The worm-shafts I I', provided with pins i* 'i9 and cog-wheels W W, in combination with the follower H, having the arms h1 h2 and the sliding block F, substantially as and for the purpose set forth.

This specication signed this November, 187 7.

13th day of JOSEPH C. \VIHTE.

W i tnesses FREDK. B. SWIFT, (in. RI'EGELMA N.

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