US283636A - Lebbeus baldwm millee and philip diehl - Google Patents

Description

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SHUTTLE HOLDER Patented Aug. 211, 1883.

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SHUTTLE-HOLQDR FR SEW'INGHIWACHINES.

SPECIFICATION `forming part of Letters :Patent 150.283,63@ dated August 21, 1883. Amolina-tion filed November 26, 1,881. (No model.l

To w55 whom, it may concern:

Be it known that we, LEBBnUs BALDWIN MILLER and PHILIP DIEHL, both of Elizabeth, in the county of'Union4 and State of New Jersey, have ,made an invention of, certain new and useful Improvements in Shuttle-Holders for Sewing-Machines; and we do hereby declare that, the following is a full, clear, and accurate description and specification of the same.

The principal object of this invention is to provide a holder for a sewing-machine shuttle, which will avoid the= friction heretofore encountered in running such a shuttle at high speed, either in a xed .race or upona relatively-fixed plate or support; and we attain this result by the use of a series of arms or levers which clasp andv support the shuttle, and are automatically and successively raised to permit the passage ofv the loop formed by the upper or needle thread.

This invention can vreadily be applied to any of the common forms oi' shuttle-machine' 1n use. v

In order to show more clearly the operation and effect of our inventioniu the best form in which we have embodied it at the presentdate, we have represented and-will proceed to describe it in connection with a shuttle having a body, beak, and beak-shank, and adapted to operate with an oscillating` movement in a machine similar in form and general operation l to that shown vand fully described in Letters Patent of the United States No. 208,838, granted to us of October 8, 1878.

In the drawings we Ahave shown only so much of such a machine as is necessary to illustrate the operation of our device.

Figure 1 gives a front view of a portion of such sewing-machine, showing the shuttle near the rst part of its forward movement and the shuttle-holder when the iirst of the series of arms is raised to let the loop of the needlethread pass, while the other arms sustain the shuttle. Fig. 2 is a similar view near the end of the forward movement of the shuttle and where the last of the series of arms is so raised. Fig. 3 is a sectional view of the whole shuttleholding device with part of the shuttle-oscil- Fig. 4 is a view of the shuttleholder only, and Fig. 5 is a face view of the cam which governs the successive movements of the shuttle-holding arms or levers.

A, `Figs. l, 2, and 3, is the front of the bedplate ofthe sewing-machine; B, its verticallyreciprocating needle-bar; and C, Fig. 3, the oscillating shaft, through which motion is communicated to the shuttle holding and actuating devices.

In this machine the series of arms or levers 6o E E E E are respectively secured by the fulcrum-pivots e e e e to a disk or plate, D, their outer ends being bent or curved, (and preferably notched,) as shown in Fig. 3, to enable them to grasp and hold the outer iiange or rim of the shuttle S, and their inner ends being provided with rollers or projections z' i t' .,which are received in the groove f of the cam F, said cam being stationary and secured to the bed-plate A. As the shaft C oscillates, carrying with it the disk D, the rollers i i z' are compelled to travelin the cam-groovcf of the stationary cam F, and when each roller i successively reaches the pointf in said groove its respective arm or lever E is compelled to turn on the fulcrum-pivot e, raising the end which clasps the rim of the shuttle. Of course the cani F should be so placed and the oscillation of the shaft so timed to correspond withthemovements oi' the needle-arm as to raise each arm when the loop ofthe needle-thread reaches it in its passage around the shuttle.

A number of variations can readily be made inthe fdrm of the shuttle-holding arms, of the piece which serves to support the fulcrum and connect the series ci' arms, and of the mechanism by which they are successively raised to permit the passage of the threadas, lfor instance, such arms may be bent at right angles over the edge of the fulcrum-support, and there secured by pivots running at right angles to the line of the oscillating shaft, and one end of each such arm may directly enter a cam-groove, thus dispensing with any roller or projection; or such arms may be jointed, or they may be formed as springs, proper changes being also made in the fulcrum-support and in the governing-cam or its equivalent; but an essential point of our invention is the employment of a series of successively-moving arms to clasp the shuttle, so that when driven at high speed it maybe as securely held and IOO e i l esame adapted to clasp the shuttle7 and a stationary 15 ealn adapted to govern the independent and successive movements of such arms, substan tially as and for the purpose set forth.

3. The combination, With the shuttle-driv ing shaft C, and the plate D, provided with 2o the pivoted supportingarms E E EE, of the Y governing-Cani F, as and for the purposes set forth.

LEBBEUS BALDWN MILLER. PHILIP DIEHL. Vtnesses:

G. S. DAvIs7 W. J. D. CHANDLER.

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