US1364038A - Shuttle-guard device - Google Patents

Description

J. F. CUMBERLAND.

SHUTTLE GUARD DEVICE.

APPLICATION men JUNE 26. 1920.

1,364,038 Patented Dec. 28,1920;

2 SHEETS-SHEET i.

J. F. CUMBERLAND, SHUTTLE GUARD DEVICE.

APPLICATION FILEDJUNE 26. I920.

Patented Dec. 28,1920.

2 SHEETS-SHEET 2.

Jf o aw/ wd UNITED STATES PATENT ()FFICE.

SHUTTLE-GUARD DEVICE.

Specification of Letters Patent; 7 Patented Dec, 28, 1920,

Application filed June 26, 1920. Serial No. 391,947.

T 0 all whom it may concern:

Be it known that I, J OSEPI-I F. CUMBER- LAND, a citizen of the United States, residing at Clifton Heights, in the county of 5 Delaware and State of Pennsylvania, have invented certain new and useful Improvements in Shuttle-Guard Devices, of which the following is a specification.

One object of my invention is to provide an improved shuttle guard device of the type where a portion of the guard proper is movable during the operation of a loom into and out of position relatively to the shuttle race and warp; the arrangement being such that when the loom knocks off the guard device will bemoved into such position as not to interfere with the weaver if it is necessary to repair or tie in ends or to manually insert or withdraw the shuttle within or out of the warp shed.

Another object is to so construct the device of my present invention that it is readily adjustable to suit various conditions and changes of the warp and warp shed as is necessary from time to time in the use of a loom due to the weaving of cloth of various characters.

A still further object is to so constructthe device of my present invention that it can be used with equal facility on looms of various widths and will be positive in its action so as to efficiently prevent the shuttle from flying out of its proper course during the progress of the shuttle across the race from boxes on one sideof theloom to the boxes on the other side.

These objects, and other advantageous Fig. 4 is an enlarged fragmentary front view, partly in section, and showing the position of the device into which the parts are automatically moved when the loom knocks off, I

Fig. 5 is an enlarged fragmentary section taken on the line 5-5 of Fig. 4,

Fig. 6 is a fragmentary section taken on the line 6-6 of Fig. 5,

Fig. 7 is a fragmentary view, partly in section, showing certain of the adjusting fea tures of my invention, and

Fig. 8 is a fragmentary side elevation. showing certain of the parts in the position illustrated in Fig. 4.

Referring to the drawings, 9 represents the frame of a loom and 10 the lay having the usual reed 11 which provides the shuttle race 12. The overhead frame 13 of the lay which provides the reed 1] has blocks 14 recess by bolts 22; the heads 16 and plates 21 having registering'cavities which provide a rocking bearing for journal or axle portions 23 of a yoked guard 24; said guard 24 including a bar portion 25 which extends substantially parallel with the axle portions 23 as clearly shown in Fig. 8. The bar portion 25 is integrally connected with the axle portions 23 by bent or angular legs26 and terminal arms 27 extend'substantially parallel with the axle portions 23 and are connected therewith by leg portions 28 so that the terminal arms 27 are substantially diametrically opposite the bar "portion25 and form T heads providing projections 29 and 80 extending in opposite directions beyond the legs 28. i j Torsion springs 31 surround the axle portions 23 of the yoked guard 24 within the cavities forming the journal bearings of the bearing heads 16; said springs having their ends respectively connected to theaxle portions and to the bearing heads and ithe springs 31 are normally operative toswing the bar portion 25 ofthe yokedguard 24 into the position shown in Figs. 4 and 8 so as to contact with a flexible strip 92 which is secured under the top rail 33 of the reed frame 13. The strip 32 is preferably made of raw hide, leather or the like and has a portion projecting over the shuttle race 12; the outer end of said strip 32 being free to flex upwardly when the bar portion 25 engages the under surface of said strip 32; said position being shown in Figs. 4 and 8 :in full lines. The extension 30 on one side of the yoked guard 24 is connected by a flexible device such for example as a chain 34; said chain passing over pulleys 35 and 36 on the top of the lay and then downwardly in the back of the lay to the side of the splits in the reed. The lower end of the chain 34 is connected to a link 37 which is swiveled on the top of a bolt 38; said boltfltting .a screw threaded hole 39 which extends clownwardly within a rod 40. The rod 40 is slidably mounted in bearings 41 on one side of the lay andhas a collar 42 secured thereto by a set screw 43 at a position between the bearings 41 as clearly shown in Figs. 1, 2 and 4. A coil spring 44 surrounds the rod 40 and is interposed between the collar 42 and the lower bearing 41. This spring normally tends to raise the rod 40 andthereby slack the chain 34 to permit the torsion springs 31 tomove the .bar portion 25.of the yoked guard 24 up into engagement with the strip 32 as above mentioned. Under normal operating conditions of the loom howeverthe spring 44 is held under compressionby a chain or other flexible device 45 which connects the bottom of the rod 40 with the usual belt shifting fork 46; said chain 45 passing downwardly around pulleys 47 and 48 which arepreferably secured. to the floor 49 upon which the loom rests, and then upwardly over a pulley 50 and thence outwardly to the belt shifting arm .46. This belt shifting arm is adapted to keep-the belt (not illustrated) in running engagement with the tight or operatingpulleyfil and is held in place by the usual knock off lever 52; it being noted that the knockoff lever, which is present on practically all looms, is flexibly connected to the frame 9 and when the loom knocks off the knock .offlever serves to automatically move the. belt shifting arm 46 to shift thebelt onto theloose pulley 53,; thereby stopping the loom. It will thus be noted that while thebeltshifting arm 46 is'in a position holding the belton the driving pulley 51 that the spring 44.will be .under tension and thebar portion25 of the yoked arm will-be held in a lower position over the front edge-portion of the shuttle race 12 as shown in dot-and-dash line position in Fig. 8 and in full line positions in Figs. 1 and 2 and the torsion springs 31 willbe under tension. When the loom knocks off however the chain 45 will be slackened and the spring 44 willrraise the rod 40 to slacken the chain 34. The torsion springs 41 will then operate to partially rotate the axle portions 23 of the guard 24 and the bar portion 25 of said guard will be swung upwardlyinto engagement with the bottom of the flexible strip 32 and clearance is then provided over the shuttle race to permit the weaver either to fix or tie the ends of the warp threads or as previously stated to manipulate the shuttle within 01 out of the shed. "The extensions 29 of the terminal arms 27 are arranged to abut the front surfaces of the bealingheads 16 and thereby limit the forward movement of the bar portion 25 of the guard24.

taking .a particular form, it will be understood that the various parts of my invention may be changed without departing from the spirit thereof, andhence Ido not limit myself to the precise construction set forth, but consider that I am. at liberty to make such changes and alterations as fairly comewith in the scope of'the appended claims.

Having thus described my invention," What I claim as new and desire'to secure by Letters Patent is-:

1. A shuttle guard device for. looms comprising a guard member having ax-le portions and a bar portion substantially parallel with said axle portions; resilient means connected to said'member and to the frame of the .reed .forautomatically turning said axle portions tomove .said .bar portion of the guard member rearwar'dly and upwardly withrespect tothe shuttlerace; and means having flexible port-ions connecting said guardmember with the knock .ofl' mecha nism .of .the loom whereby whenr-the loom knocks ofi, said flexible means is. slackened to. permit. said resilient means .to movesaid bar portion of the guard member in said direction substantially as. described.

2. IA. shuttle guarlddevice for looms comprising a guard :memberihavingaxle portions and a bar portion vsubstantially parallel-with saidnax le portions; springs for said axle portion secured to the frame of the reed; means for automatically turningrsaid axle portions to move said bar portion of: the guard member .rearwardly .and upwardly with respect to. the race ;..and means having flexible portions connectingsaid; guard mem' ber with the :knockoff .mechanism of the loom whereby when the .loom knocks off said flexible means is slackened to permit the automatic means to move said bar portion of the guard member in said direction, said knock off-connected means including a slidably mounted bar, bearings on the lay in which said bar slides, a collar on said bar, and a spring operatively connected between the collar and one of said bearings; substantially as described. c 3. A shuttle guard device for looms comprising a guard member having axle portions and a bar portion substantially parallel with said axle portions; blocks projecting forwardly from the reed frame of the lay of the loom, said blocks having outer forwardly slanting surfaces; bearing heads adjustably secured against said slanting surfaces and providing a bearing for said axle portions of the guard member; means for automatically rocking said axle portions whereby said bar portion of the yoke is moved upwardly and rearwardly; and means having flexible portions connecting said guard member with the knock off mechanism of the loom whereby when the loom knocks off said flexible means is slackened to permit the automatic means to move said bar portion of the guard member in said direction; substantially as described.

4. A shuttle guard device for looms including a guard member having a bar por tion adapted to be swung into and out of positions relatively to the shuttle race; means operatively connecting said guard member with the knock off mechanism of the loom whereby when the 100m knocks off, said bar portion of the guard member will be moved into a position upwardly and rearwardly from the front edge portion of the shuttle race; and a strip of flexible material extending over said shuttle race and under which said bar portion of the guard member moves when the loom knocks off; substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH F. CUMBERLAND.

Witnesses:

ELIZABETH GARBE, CHAS. E. Porrs.

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