US1272138A - Shuttle. - Google Patents

Description

L. P. SPENCER & W. H. WILSON.

SHUTTLE.

APPLICATION FILED DEC-28.1911.

1 ,272, 1 38.. Patented July 9, 1918.

UNITED STATES PATENT @FFIQE.

LEWIS P. SPENCER AND WILLIAM H. WILSON, OF BEDFORD, MASSACHUSETTS.

SHUTTLE.

Specification of Letters Patent.

Patented July o, 1918.

Application filed December 28, 1917. Serial No. 209,227.

To all whom it may concern:

Be it known that we, Lnwrs P. SPENCER and WILLIAM H. WILSON, citizens of theparticularly to a guide eye for the thread,

and it has for its principal object to improve the construction of the eye to afford easy threading thereof.

The invention consists in a guide eye cut away at its inner or rear end on one side of. the thread slot, the shuttle body being also cut away so as to leave a point extending upwardly into the thread slot at the outer end thereof.

In the drawings- Figure 1 is a fragmentary top plan view of a shuttle having the improved guide eye embodied. therein.

Fig. 2 is a side elevation thereof.

Fig. 3 is a transverse vertical section. on

' line 3-3 of Fig. 1, and

Fig. 4 is a perspective view of the guide eye per se.

Referring more in detail, the shuttle body 1 is provided with the usual threading slits 2 and 3, the horizontal slit 2 leading to the delivering passage in which the guide eye 4 is disposed.

This guide eye is preferably made of porcelain and is provided with an upwardly projecting longitudinal rib 5 in alinement with the fiat side 6 to coiiperate therewith in securely interlocking the eye in position in the grooved seats of the shuttle body. The opposite side Wall of the eye is cut away at its inner end, as at 7, so that its outer end is provided with a relatively-depending wall 8 that extends below the plane of the slit 3. Toprovide a communicatin passage between the slit 3 and the threa slot 9, the body of the shuttle is cut away or removed beneath the lower edge of wall 8, as indicated at 10. This construction provides a point or ridge 11 extending up into the thread slot ,9 to serve as a barrier or In practice, the thread is passed through the slits 2 and 3 and down beneath the deave invented a new and useful pending wall 8 through connecting passage 10 and then up into the thread slot 9 above the ridge 11 where it is securely retained against dislodgment. No obstruction is encountered to the thread entering the inner end of the slot by reason of the fact that the cut away wall 7 does not extend down across the slit 3. This start which the thread obtains by the unobstructed and easyentrance at the inner end of the slot facilitates the entering of the thread beneath wall 8.

A Vertical guide member 12 is. arranged in the cavity 13 of the shuttle body and is provided with a bend 14 in which the thread normally slides. This bend further tends to retain the thread well up in the slot-9,

and thereby minimize the possibility of the thread leaving the eye, by reason of the elevation at which said bend holds and guides the thread as it passes about the same into the eye slot 9. Thus, by referring to Fig. 3 it is quite obvious that a thread under tension and passing through the bend 14 and slot 9 would be well above the ridge 11.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is 1. In a. shuttle, a shuttle body having a vertical cavity, a lateral delivery eye passage, and vertical and horizontal connecting threading slits, a guide eye havingaflat side extending to form a rib and forming therewith a means for securing the eye in the passage, said guide eye formed with a thread slot communicating with the horizontal slit of the shuttle, onewall of the thread slot being cut away at its inner end above the horizontal slit to form an abrupt shoulder intermediate the lengthof the wall with the outer end depending across the same, a passage beneath the depending wall portion connecting the horizontal slit to the thread slot, and a ridge extending up into the latter.

2. In a shuttle having a horizontal threadin slit leadinoto a delivery eye passage, a su stantially ll-shaped delivery eye arranged in inverted position within the delivery eye passage, the shuttle body being cut away beneath the wall adjacent the threading slit and extending upwardly between the walls of said delivery eye.

3; In a shuttle, a shuttle body having a threading slit and a delivering eye passage, a guide eye arranged in the latter and provided with a thread slot having the outer nafnes to ihis specificatien in the presence end portion only of one side Wall extemied of two subscribing witnesses. below the slit, the shuttle body being cut LEWIS P. SPENCER. away beneath said extended Wall portion to WILLIAM H. WILSON. 6 provide a passage, saidshufitle body extend- Witnesses:

mg up into the thread sl'ot, I OLIVER PRESGOTI,

In testimony whereof We have signed our JOSEPH N. SPENCER.

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