US1138243A - Carrier for braiding-machines. - Google Patents

Description

A. PAQUETTEJ CARRIER FOR BRAIDING MACHINES.

APPLICATION FILED SEPTRQI 1914.

1, 1 38,243. Patentd May 4, 1915.

THE NORRIS PETERS 60.. FHOTG-LITHOH WASHINGTON. D. C

" ran STATES PATENT OF ALFRED PAQUETTE, OF EAST BOSTON, MASSACHUSETTS, ASSIGNOR TO NEW ENGLAND BUTT COMPANY, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF RHODE ISLAND.

Specification of Letters Patent.

CARRIER FOR BRAIDING-MACHINES.

Patented May 4, 1915.

Application filed September 9, 1914. SeriaI No. 860,938.

braiding machines and has for its object to provide means in such a carrier for eliminating the usual top weight and to provide a lift wire adapted to be operated by the bottom weight, to lift the spool teeth from engagement with the stop rib in the base to release the thread wound upon the bobbin, the lift wire being arranged to eX- tend across from the standard beneath and clear of the spool, with its end portion turned up to engage the spool approximately at its center portion, to reduce the rotating friction of the spool to the minimum.

A further object of the invention is to providetwo coils in the spool engaging end of the lift wire, one to engage the spool, and the other to engage the flange beneath the spool when raised to limit the amount of lifting motion.

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 a side elevation partly in section showing my improved carrier with the bobbin spool in down position on the spindle with its teeth engaging the stop rib to prevent rotation. Fig. 2- is a view showing the bobbin moved to its raised position through the lift wire by means of the upward movement of the tension weight. Fig. 8- is a section on line 3 of Fig. 2 showing the manner in which the bobbin spool teeth engage the stop rib. Fig. 1- is a perspective view of reduced size of one form of the lift wire. Fig. 5 is a side elevation showing a modification, in which the end of the lift wire is provided with two coils, one extending around the spindle and engaging the under side of the spool, and the other coil extending around the support and adapted to engagethe flange when moved upward to limit its lifting stroke, the spool being shown in partly raised position. Fig. 6- is a perspective view of the modified form of lift wire showing the spool engaging end thereof.

Referring to the drawings, 10 designates the base portion on which the standard 11 is supported, and also in which a bobbin carrying spindle 12 is mounted on the support 13, and which support is provided with a flange 14:. A thin stop rib 15 extends between said support and standard. On this spindle 12 is rotatably mounted a bobbin 16, the lower end of'its spool being provided with ratchet teeth 17 which are adapted to I engage the stop rib 15 to prevent rotation of the bobbin except when raised clear of this rib. The weight 18 is mounted to slide vertically on the standard 11 and is ar-. ranged to serve a double purpose, which is that of providing a tension on the yarn and also to control the rotation of the bobbin to release the yarn by means presently described.' In order to lift the bobbin and permit it to rotate when the proper tension is on the yarn, I have provided a lift wire, 19, the upper end of which is coiled at 20 about the standard above the tension weight, the body of the wire then extends down the standard and a portion 21 extends across from the standard beneath and entirely clear of the spool, the end portion is then turned upward, as shown in Figs. 1 and 2, and passes through the guiding aperture 23 in the flange 14: and its extremity engages the underside of the annular washer 25 beneath the spool and as near the: absolute middle as possible, the object of which is to lift the bobbin squarely on its spindle without cocking or tipping the same, by which construction the turning friction of the spool is reduced to the minimum, which is quite essential in the practical operation of a carrier of this construction. By my im proved construction when the lift wire is raised the bend'at 26 engages the flange 141 and serves as a stop to limit its upward or lifting motion.

In my modified form of lift wire I have provided two coils 27 and 28 see Figs. 5 and 6, the upper coil 27 is formed about the center spindle 12 and serves as a bearing about the middle portion at the bottom of the spool for lifting the same. coil 28 is connected to the upper coil by the bridge portion 29, this lower coil is formed about the support 13, below the flange 14:

The lower and is smaller than the flange. By this construction when the wire is lifted by the takeup weight the lower coil brings up against the flange 14 and limits the upward movement.

My improved carrier is so constructed that its operating mechanism may be readily applied to a standard form of carrier, and may therefore, be readily applied to carriers already in operation, for instance in applying my attachment to a carrier of the double weight type, I simply remove the top weight, reverse the bobbin spool end for end, which causes its ratchet teeth to engage the rib 15, then drill a hole 23 in the flange 24: and connect my lift wire to the standard,

the carrier is then threaded up in the usual way, and by this construction the operating speed of the carrier may be increased nearly one-third. This increase of speed is produced first by the fact that a doubie take-up action is obtained, one by the dropping of the weight 18 and the other by the downward motion of the spool after having been released by action of the lift wire. Second the removing of the top weight reduces the tipping or cramping action due to the centrifugal force upon the carriers when travel ing at a high rate of speed.

The device is extremely simple and inexpensive in construction, may be readily applied to carriers already in use and is prac tical and efficient in its operation.

I claim:

1. A carrier for braiding machine comprising a standard and a spindle support having a flange at its upper end, a spindle on said support on which a bobbin spool is rotatably mounted, a transverse rib between said support and standard, said rib being adapted to normally engage the downwardly projecting teeth on the bobbin spool, a weight slidably mounted on said standard,

a lift wire having a horizontal portion extending across from the standard beneath and clear of the spool, and its end portion turned upward and extending through the flange on said support to engage the spool approximately at its middle portion the opposite end of said wire extending upwardly parallel with said standard and bent to en gage said weight when raised to lift the spool teeth from engagement with said rib w ien more yarn is required to be unwound from the spool, the flange on said support acting as a stop for the horizontal portion of said wire to limit the upward movement of said spool. V

2. A carrier for braiding machine comprising a base having a standard and a flanged spindle support, a spindle on said support on which a bobbin spool is rotatably mounted, a transverse stop rib between said support and standard, said rib being adapted to normally engage the downwardly pro jecting teeth on the bobbin spool, a weight slidably mounted on said standard, and a lift wire having a portion extending across from the standard beneath and clear of the spool, and having a portion extending above the spindle support flange to engage the bottom of the spool about the spindle, and portion to engage said flange whereby the raising motion of said wire is limited, the opposite end of said wire extending upward parallel with said standard and bent to engage said weight when raised to lift the spool teeth from engagement with said rib when more yarn is required to be unwound from the spool.

In testimony whereof I a'lflx my signature in presence of two witnesses.

ALFRED PAQUETTE. lVitnesses THOMAS FAUL NER, JOHN A. CRosBY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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