US2012050A - Shuttle box construction for looms - Google Patents

Description

o. v. PAYNE SHUTTLE BOX CONSTRUCTION FOR LOOMS Filed Aug. 29, 1933 .IIIIIINIII l .t nl T, l 1....,... rz... ../../1. .2. .L .H r Pk. .10.5. \1 .INT/...Af

Snuenbor Oscar U. Pmj he f Qttov'negs SHUTTLE Box lOscar ,VQ Payne, K Leicesterpjlvll'as's.; `lassigner :to

Crompton& Knowles Loom Works, vWorcester," Mass., la 'c'orlgsoratiolir of Massachusetts Application August l. This invention relates to improvementsin loom` shuttle boxes and it is an object of theinvention to provide a construction wherein the shuttle mayA e be subjected to a variety of controls while entering 1' or leaving the shuttle box.' 'f f It is a further object of my invention to providea shuttle box with. amovable or travelling friction surface which maybe so controlled tore# sist movement of 'the shuttle into theV box .butl without resisting picking, or lallow the shuttle to' enter the box'wit-h little or no resistance andefeci tive-to resist picking. This result may be accomplished by the `use of a clutching vpart which can `'It is afurther object of my invention to femploy an endless belt to define one sideof the shuttle box and train ythis belt around a pair of pulleys one or both` o ffwhichmay be retarded as to motion in eitherdirection. This feature of-my invention contemplates a--clutching device which can be rendered effective to Lcheck the shuttle in either direction while lpermitting free movement.

in the opposite direction. yBy removing certain parts of the clutching Ydevice the shuttle can move freely both into and out ofthe box, and if desired a clamp friction can be used to offer equal resistance to shuttle motionin oppositefdirections.. All desirable combinations of controlsy for the'- shuttle are therefore available.

It vis y a further importantl object of yrriyi'ne.k vention to provide a travelling boxv forming ele-4 ment which may beA common to the various'arrangements already described and present afric-V tionsurface which imposes ,adrag on the shuttle and also acts to force the latter against the opy,

posite part of the shuttle box.`

, With these andother objectsin view which will Y appear as' the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth .in the claims. A,

` In the accompanying drawing, whereina convenient embodiment of my invention is setforth,

Fig. 1 Aisa topplan View Yof one end offthe'lay having my invention appliedthe'reto,

and respectively, of Fig. 1, 1 l

e n is a detail horizontal section' on line lll-4 ofFig.3,and Y A, f Figs. 5 and 6 are `diagrammatic figures shoW`v ing the clutching mechanism 'in different posirtions.l f l V Referringl to the drawing, the lay 'IU has a box front Ilslotted to receive a `binder l2.pivoted to the box front as at I3. A spring I4urges .the

Figs. 2 and 3 are vertical sections on linsg2p-2 29, 1933, semi No. k687320 `14 claims. (cijiaek-isei' binder rearwardly and a'4 protector finger l5v is positioned forl movement-by .the binder to non-protecting positionwhen the shuttle S enters the box :B. A'box `backguidelii aligns with reed il,

and a picker-i8 propelled by apickerstick iii and resting against a stop 2M maybe employed to pick the shuttle outof the box. The matter thusy thereof andmount rotatablyl in said stand a` vertical shaft 2 i `to the upperv end of which is keyed or otherwise secureda. pulley 22. The latter may be groovedto receive la V-belt 2,3 the straightsides of which extendparallel to the layor the path of movement of the shuttle.AL The shaft 2l may have a shoulder 24 to rest on stand 20and support thev pulley 4in correct position.

A second stand 25 also secured to the back of thelay has ,extending upwardly therethrough a stud `Zilvsecured infthejstandr by a set screw 2l and having` a shoulder 28to rest on the top of the stand..` Projected vupwardly from the shoulder is a cylindricalbeari-ng-ZQfterminating .in a ref duced threaded `end YSil.A A washer 3l may resten theshoulder 2,8 and afford support for a second f pulleyor guide wheel 32 the periphery of which is Vgroovedtoreceive the belt23. This second pulley has an internal cylindrical bore 33 into which fits aclutch 34Y having notches 35 therein to dene with `the bore 33 a plurality of wedge shaped rpockets 355.,k 'Ihe clutch has cylindrical surfaces 31located between the notches to providesui-r cient vguiding and bearing surfacesv for the bore of the pulley 32. 4Clutching pins or rollers 38 are located inthe pockets and have diameters slightly lessthanf the largeends of the pockets. These pins orrollersare held in position by the lower washer A3| and an upperwasher `39 held in placefbya nut MlA onthe threaded end 30. A key 4l between the bearing 29 and the clutch A3e provides means for holding the clutch against rotationwhen the set screw 2'! is clamped against the stud 26.

The, clutch is vprovided witha cylindrical bore 42 proportioned to receive the bearing 29 and Asaid clutch member is reversible withrespect to the ,bearing, this result beingfaccornplished by moving the .nut mand the washer 3S, after which the key can be removed and the clutch changed from the position shown in Fig. 5 tothat shownr are the relation shown in 55 its movement with the shuttle except for'such. slippage as may exist between the belt and the' pulleys, The shuttle therefore continuesto move in the box against the resistance offered vby the belt 'and finally cornes to rest in somesuch appositiony as indicated in Figjl. When the .picker operates the shuttle will move to the left, ythe firstk effect of which will be to move'the belt and there` fore pulley 32 Vin a clock-wise direction" with re-` sultant movement of the clutching pins 38 toward the large ends of the pockets; The pulley is therefore free to rotate Without restraint and the Vshuttlecan be pickedout of theboxvwithout being required toovercome any resistance offered by the frictional contact with the belt. Certain conditions of loom operations may render this mode of operation desirable, such for instance, as a. high' speed loom where it is necessary to check theV shuttle in order to absorb the excess energy due to its quick flighting, butfwhere as little'resistance as possible is oife'redlto thepicking of the shuttle .to save power. Y

if the opposite control conditions aredesired, the clutch canV be reversed as already set forthfso that it will assume the position shown in Fig. 6. Under these conditions the frictional-contact between the belt and shuttle viill cause the pulley 32 to rotate `in a counter clock-Wise direction and move the pins toward the large parts of the pockets, after which the belt will move freely without imposing appreciable resistance to the boxing of the shuttle. Upon the subsequent pick, however, movement of that part of thebejlt contact ing With the shuttle to the left will move the locking pins into the small ends o1' the pockets to Vwedge the clutch against the pulley 32, after which movement of the belt is'eiectively resistedY so that the shuttle is required to be picked against the frictional resistance of the belt. These 'conditions might be desirableon a slow running Wide -loom wherethe force ofI the shuttle is almost spent as it nears the end of its flight and little or no resistance should be offered as 4,it enters the box, but where the flight is so long that all ofthe connections of the picking mechanism not shown should be tightened'Y by imposing frictional resistance to movement ofthe shuttle as the same starts to leave the box. v .y

Should it bev desired to permit the shuttle to move both into and out of the shuttle box unresisted by the belt the'rollers 38 can be removed, or key di taken out. Under this latter condition the key :nay be placed in one of `the pockets for safe keeping. K Y

when the pulley S2 is unable to resist movement of the belt ineither direction it is possible to effect a still further control ofthe shuttle by offering resistance to the belt in both directions through the medium of some such a device as that Ashown in Fig. '3. The shaft 2l maybe extended downwardly and have a washer 50 supported by a pin i. A clamp device 52 resting on the washer 5B may be made' of sheet metal or other resilient inaterial and comprises a body 53 from whichproject ears 54. A bolt 55 extending through the ears may'have ahead bearing against one of said ears and be surrounded by a Washer 51 bearing against the other ear. A compression spring 58 around the bolt presses against the washer 51 to exert a variable pressure thereon determined by the position vof nut 59.

In order that the clamp may be held substantially stationary I extend downwardly from the stand 20a pair of fingers 60 having a space 6| therebetween into which anv arm 62 of the clamping element projects. A screw 63 may be employed `if desired to hold the arm tightly With respect to the stand 20.1.' f

By varying the setting of the nut 59 the pressure of the lining 65 of the clamp device against the shaft 2l can be altered so that any desired resistance to movement of the pulley 22 can be had. When the third condition, already described, is desired, namely that' the belt should move freely in bothdirections, this clamp can be released, but when resistance to belt movement in both directions is'desired the clamp is tightened andmay in effect. be caused to holdthe belt statione'try.`

provided a shuttle box construction including. a

friction surface the movement of Vwhich can be controlled" in any Way desired both as regards the `'boxing and picking of the shuttle. The belt set forth herein affords one means for presentinga travelling surface to engage the shuttleand either' resist orpermit free movement of the latter, according to the setting ofthe parts described. The'clutchl'isreversible when a difference in the resistance in the boxing and picking is desired, and can be disconnected Whenfu'niform Vconditions of boxing and picking are desired, either by having free 'or-v resisted movement of the belt. In certain forms of the invention the belt is given a stepbyfstep movement to carry it progressively around the pulleyso that new surfaces are con- Y tinually being presented to the 'shuttle with reduced wearing effect on the travelling surface. It willalso be seen that the clamp for the pulley 22 canbeused-When-the clutch 34 is operative, the

clamp permitting a Wide range of yielding resistance on the part of belt movement in the direction opposite tothe motion which is positively prevented by the clutch. While I have shown the space'bet'vveen they belt and the box front Il as adaptable for one width of shuttle, yet it is within the scope of my invention to vary this distance forthe accommodation vof shuttles of different Widths.

Having thus describedmyinvention it lwill beV seen that changes and modifications may be made therein by those skillediin the art Without departing `fromthe spirit and scope of the invention and I do notfwish to be limited to the details herein disclosed, but what AI vclaim is: i

1. In aloom, a shuttle box, means presenting al 3. In a loom operating with a shuttle, ajlay,a shuttle box, a belt forming one side of the shuttle box, a pair of pulleys carried by the lay and around which the belt moves, and means to resist movement of lone of said pulleys.

4. In a loom operating with a shuttle,-a shuttle box, a belt forming part vof the shuttle box, a pair of pulleys around which' thebelt is trained, and clutchmeans to cooperate with one of the pulleys to prevent movement thereof in one direction.

5. In a loom operating with a shuttle, a lay, a shuttle box, a belt mounted on the lay and forming part of the shuttle box, and a reversible controller for the belt effective to resist motion of the belt longitudinally of the lay in either of two directions depending upon the position of said reversible element. f

6. In a loom operating'with a shuttle, a lay, a

shuttle box, a belt mounted on the lay forming part of the shuttle box, and a detachable reversible pulley for the belt effective to resist motion of the belt in either of two directions depending upon the position of the reversible element, said reversible element when detached from the belt being incapable of offering resistancevto movement of the latter in either direction.

7. In a loom operating with a shuttle, a lay, a belt on the lay forming part of the shuttle box, a controller for the belt tending to prevent movementor the latter in one direction, and a yielding resistance additional to the controller tending to prevent movement of the element in the opposite l direction.

i 8. In a loom operating withfa shuttle, a lay, a belt mounted thereon to engage the shuttle, a reversible controller for the belt to prevent movement of the latter while in contact with the shut- "tle in either of two directions depending `upon the position of the reversible element, and a yielding resistance tending to resist motion of the belt in o either direction independently of the controller.

. 9. In a loom operating with a shuttle, a` lay, a shuttle box, a belt on the lay forming part ofthe shuttle box, a reversible detachable controller for the belt effective to prevent motion of the latter along the lay in either of tWo directions depending upon the position of the reversible element, the belt moving without resistance on the part of the controller when the latter is detached, andmeans independent of the controller to impose a s shuttle box.

yielding resistance to the belt tending to resist motion of the belt irrespectiveof the position of the controller or whether the latter is detached;

vl0. In al loom operatingwith a shuttle, a shuttle box, la travelling surface forming part of thev shuttle box, a shuttle to enter and leave the box, the travelling surface capable of resisting movement of the shuttle when entering or leaving the box, and a plurality of controls for said surface one of which prevents movement of 'the-.surface inA either of two directions while permitting unobstructed movement of the surface in the oppositedirection, another of said controls capable of disconnecting the rst control from the travelling surface, and the third Vcontrol effective to resist movement of the travelling surface in either direction independently of the rst control.

11. Ina loom operating with a shuttle, a shuttle box for the shuttle to enter and leave, a travelling surface forming part of the shuttle box and positioned for engagement with the shuttle when the latter is in the box, and a plurality of controls for the travelling surface effective to resist movement of the travelling surface when the shuttle is entering or leaving the box, or effective kto render said travelling surface free to move with the shuttle when the latter is moved into or leaving the box. Y

12. In a loom operating with a shuttle, a shuttle box for the shuttle to enter and leave, a travelling surface to engagethe surface and forming part of the box, and two separate controls for said travelling surface, one effective to resist movement'of the surface in one direction only, and the other to resist movement of the surface in the opposite direction.

13. In a loom operating with a shuttle, a shut- Ytle box, a travelling surface forming part of the `shuttle box, a pair of supports for the travelling surface ea'ch movable with the latter, one of said supports being movable freely in opposite directions, and means to prevent movement of the kother support-in one direction.

' OSCAR V. PAYNE.

Images