US1279383A - Friction device for shuttles. - Google Patents

Description

W. J. D. LONG.

FRICTION DEVICE FOR SHUTTLES. APPLICATION FILED SEPTJZ. 1917.

1 ,27 9, 38 3 Patented Sept. 17, 1918.

WILLIAM J. D. LONG, OFGREENVILLE, SOUTH CAROLINA.

FRICTION DEVICE FOR SI-IUTTLES.

' Specification of Letters Patent.

Patented Sept. 17, 1918.

Application filed September 12, 1917. Serial No. 190,985.

To all whom it may concern:

Be it known that 1, WILLIAM J. D. LONG, a citizen of the United States, residing at Greenville, in the county of Greenville and State of South Carolina, have invented certain new and useful Improvements in Friction Devices for Shuttles, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to shuttles, and particularly to the means for guiding the yarn through the end of the shuttle.

The general object of my invention is to provide a friction and eye for the yarn, so constructed that the yarn may be readily inserted in the shuttle through the friction device and the eye, butcannot come out of the slot in the shuttle, nor become unthreaded from the eye and the friction device.

, A further object of the invention is to provida a device of this kind which will readily guide the yarn or thread into the shuttle.

A further object is to provide a construction of this kind in which the friction device and the eye may be readily removed from the shuttle.

Other objects will appear in the course of the following description.

My invention is illustrated in the accom panying drawings, wherein Figure 1 is a plan View of a portion of a shuttle embodying the improvements of my invention;

Fig. 2 is a side elevation of the construction illustrated in Fig. 1;

Fig. 3 is a transverse section on the line 3-3 of Fig. 1; v

Fig. 4 is also a broken longitudinal sectional view on the line H of Fig. 1;

Figs. 5 and 6 are detailed views of the friction device detached; and

Fig. 7 is a similar view of an eye employed in the device.

Referring to the drawings, it will be seen that 10 designates a shuttle of any ordinary or usual form and formed withthe seat 11 for the friction device 12. Extendin from the seat 11 transversely of the shutt e is a bore 13, this bore extending entirely through the shuttle and terminating on one side in a countersink 14:. Extending from about the middle of the seat 11 forward and toward one side of the shuttle is the kerf or vertically disposed slot 15 and extending horizontally from this slot to the bore 13 is the h rm nal e191; k f The 5 d? of the shuttle is formed with a groove 17, which intersects the bore 13 and the slot 16.

Disposed within the seat 11 is the friction device, which comprises a metallic member formed with a straight vertical inner face 18, with an outwardly projecting flange 19 at its lower end through which a screw 20 passes holding thefriction device to' its seat. Through the member 18 extends a bore 21 and intersecting this bore is a diagonal slot or kerf 22, the inner end of this kerf intersecting the bore at one side of the bore and extending tangentially thereto, while the other end of the kerf intersects the bore at theother side of the bore. The member 18 is transversely slotted as at 23 and disposed 1n this slot and passing across the opening 21 is a strip of felt 2 1 filling this slot, this felt having a small split 21 through it coinciding with the bore 21, so that the thread or yarn passes through this opening on the felt, the felt actingrto put a tension or restriction upon the outward movement of the yarn.

Disposed in the bore 13 and extending transversely across the shuttle is the eye 25. This eye is cylindrical in form and tubular and at one end it is formed with a screwthreaded head 26, the opposite end of the eye having its corners rounded off as at 2.7. One side of this cylindrical eye is cutaway as at 28, this cut-away portion extending inward nearly through the central bore of the eye and the lower face of the eye is longitudinally slotted as at 29, this slot extending inward and intersecting the cuthead 26 has screw-threaded engagement in the countersink 14 and the eye extends nearly through the shuttle. The slot 29 opens upon the bottom wall of the bore 13 and this bottom wall is slightly cut away as at 30, so as to leave a space between this face ofthe eye and the floor of the bore, so that thethread or yarn may be passed through the slot 16 beneath the under face of the eye and up through the slot 29.

In practical use, this device permits the ready threading of the shuttle, but the ar rangement of the eye and friction device absolutely prevents the unthreading ofthe shuttle, which is a mor or less common occurrence, under ordinary circumstances, and is extremely vexatious. It will be seen that e a thre in order be asthma the shuttle, must be brought down so as to pass through the slot 29, and this is impossible for the reason that the thread passes over the rear inner wall of the cutaway portion 28 and then passes down through the bore at inclinatiqn to the bore so that it is impossible to get the thread or yarn back through the slot in the barrel forming the eye and hence back through the kerfs 16 and 15. At thesame time the friction 'de vice is readily removed from the shuttle Whenever necessary, in order to remove the felt, and the eye is also readily removed at any time if for any reason it is desired to unthread the shuttle. So long as the triotion device is in place, however, and solong as the eye is in place, there is no possible chance to unthread the shuttle.

Having thus described my invention, What I claim is:

r l. A friction device for shuttles comprising a body having an apertured base adapted to receive an attaching screw and a normally vertical portion extending therefrom and having a thickness less than the thick ness of the base and provided with a horizontally extending bore and With a slot extending from the upper end of the body and tangentially intersecting the bore, the body being transversely slotted and said slot intersecting the bore, and a piece of textile ztabric disposed in said last named slot "finale; o t s p ent ay sa i n r extending across the bore, the fabric having a slit extending .from the lower end of the sore tithe body having a thickness lesstha'n the diameter of the base and having a 40 rounded outer face, the body having a bore extending longitudinally through it parallel to the under -faceof the base and having a vertically extending slot obliquely disposed to the bore, the inner end of this slot interseeting the bore tangentially at one side thereof and the outer end of the slot interseating the bore tangentially at the other end thereof, said :body being formed with a transverse slot extending upward from the base and intersecting the bore, and a strip of fabric disposed in said last named slot and extending across the bore in the body, the fabric having a slit extending to the middle vof the bore, the outer end oi the slit coinciding with the inner end of the first named slot in the body.

In testimony whereof I hereunto aiiix my signature in the presence of two Witnesses.

J. D. LONG.

Witnesses:

N. H. KNIGHT, ADAM ,C. WELBOBN.

the tents sash by manning the fiqnnmi aeee 91' same, Waghjngton, D. G.

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