US1747991A - Feeler mechanism for looms - Google Patents

Description

Feb. 18, 1930. J. w. slMPsoN 1,747,991

l FEHLER MECHANISM FOR LOOMS Filed Sept. 13. 1928 A T -roR/VEY Patented Feb. is, 193e .,{UNITED STATES PATENT oi-Fics l JESSE SIMPSON, ANDERSON, SOUTH CAROLINA, ASSIGNOR TO DRAPER CORPORA- TION, 0F HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE FEELER MECHANSM FOR LOOMS Application' filed September lf3, 1928. Serial No. 305,635.

' Thisinvention relatesto feeler mechanisms for looms. whereby `the Aoperative condition of lthe loom is changed from time to time as the kf`ll'lii: '1g becomes substantially exhausted. The

change the operative condition of the loom is usually rone't'hat effects filling replenishment.7 andthe vpresent invention will be described in this connection.

f I Several types of feeler mechanisms have been suggested heretofore in an attemptto minimize waste of filling upon replenishment of filling in the shutte and among such feeler mechanisms is that commonly known kafs the Side slipping7 feeler, wherein the feeler moves longitudinally of vthe shuttle wheny the filling is substantially exhausted onadetecting beat'. Su'chside slipping move ment of the feelerv is imparted either` by the frontward pressure of a surface within the shuttle or by means such as a spring which v,acts upon the feeler independently to cause itsmside vslipping movement. The present invention is more particularly directed to a feeler mechanism of the side slipping type wherein .the feeler is spring stressed to effect its indicating or side slipping movement.

Waste filling, of course, depen'dsupon the amount of yarn left upon the filling carrier when ity-is ejected from the shuttle on replenishment of filling and the problem presented to a feeler mechanism to minimize such Ywaste isa delicate one and depends largely /upo'ii Athe accuracy and delicacy of the feeler operation. One of the objects of the present invention'is to provide a feeler mechanism of the side slipping type which shall be under .the influence of a kspring so constructed and related to the feeler itself that it will` act both having a laterally extending arm and a fulcrum'stop against which the feeler is held 'by a spring acting in an inclined direction and exerting its stress on aline rearward of the fulcrum stop when the yfeeler is in feeling position, and frontward of the fulcrum stop when the feeler is ymoved frontwardly, the result being that the single spring acts both to position the feeler for its feeling function and then acts when the feeler is moved frontwardly to impart a tendency to its side slipping movement.

The invention and novel features 'thereof will best loe made clear from the following description and the accompanying drawings of one good form of the invention.

In the drawings:

kFig. 1 is a perspective view with -parts broken away showing sufficient of the loom and feeler mechanism to make clear the operative condition of the latter;

Fig. 2 is a plan view showing the action of ,the feeler mechanism on ak detecting beat when 4a working supply ofviilling is present in the shuttle;

Fig. 3 is a plan view showing by full lines the position of partson a detecting beat when the filling is substantially exhausted, and by dotted lines the relation of parts when the feeler is in its rearward feeling position; and

Fig. 4 is a section on the line 4 4 of Fig; 3.

As hereinbefore indicated, feeler mechanisms are now generally employed in looms toefiect replenishment of filling when that in the active shuttle has become substantially exhausted, but since the replenishing mechanism and its manner of operation are both now well understood yin the art such mechanism is not here shown as its details form no part of the present invention.

The shuttle box l may be of usual construction and the front wall thereof may have an openingfor the entrance of the feeler as is now the ordinary practice. The shuttle 2 contains the lilling carrier 3, the head portion l ot which is provided with rings 5 for engagement with the usual bobbin holding j aws of the shuttle, and the front wall of the shuttle is provided with an opening Gt-hrough which the eeler may pass and detect the condition of the lilling, vall as usual.

Mounted upon the loom frame or shipper stand is a bracket 7 upon which is secured the iteeler stand 8 by means of a bolt 9 which is passed through an opening 10 in the eeler stand. The 'eeler 11 is mounted directly on the ieeler stand for movement towards and from the front of the loom and longitudinally of the shuttle; The rear end portion of the floating teeler 11 is provided with one or moreV teeth 12 which are adapted to engagethe Atilling in the shuttle and prevent side slipping movement or the feeler when a working supply is present on a detecting beat.

The feeler 11 extendsthrongh an opening 13 formed in an upstanding flange or rib 14 at the rearof the teeler stand and Nhas liberty of movement towards and from the front of the looman'd longitudinally 'of the shuttle.Y

The front portionofthe `feeler 11 is provided with a laterally extending arm 15 which as shown comprises a bent portion of the front. end oi"- the feelerritseliralthough it may be otherwise formed. The terminal portion oi thelaterally extending arm 15 as shown is provided with a hook 16 to which is secured one end. 17 of a pull spring 18,

. the rear end portion ofthe spring being secured to an upstanding portion 19 ot the arm 20, the construct-ion being such that the stress of the spring 18 relativeto the feeler is in a rearward and lateral direction.

' Mounted upon the feeler stand 8 is a pin or screw 21 which constitutes atulerum stop lagainst which themain body portion of the l'eeler 11 rests during the loom operation and which constitutes a fulcruin about which the theelei: may be turned when itis moved :trontwaidly on a detecting beat with iilling. substantially exhausted.. The fulcruin stop 21 may be constitute-d as a .boltyas indicated in Fig, 4l, whiclnin the present instance ot the invention, is passed through the innerend 22 ofthe arm 2() and clainped'thereto by a nut 1.55, theconstruction being such V'that by ina- Vnipiilation'eic the'nut/23 the arm 20'may be y moved into diterent 'positionsfto change the direction spring ystress upon the eeler. i

The fulcrunistop 21 may beprovi'ded .with

a washer 24 andA an enlargedhead portion 25 to maintain proper Contact and'posit'ionV of the i'eeler 11.. 4 v' Hf The laterally eirtending arm 15 at the'tront portion oi the eeler projects beyond the fulcruni stop, as indicated more clearly iii Figs. 2 and 3, and is preferably bentrearwardly, with the result that the yloop in the arm 15 embraces the feeler stop when the eeler is in its rearward feeling position.

As indicated in the present instance of the invention, the backwardly turned end portion of the arm 15 isof a length such that when the feeler l1 is in its rearward feeling posit-ion, the stress of the spring 18 willact upon the feeler along a line a back of the fulcrum stop, so Athat when the feeler is in its rearward feeling position under the action of the yspring 18, the latter willexert Vstress upon the eeler to place itin a directly extending backward position, as indicated by the dotted feeler in a direction longitudinally of the shuttle, as indicated by full lines in F ig. 3. f

F rom the construct-ion described it will be noted that the single spring acts upon .the laterally extending arm 15 of the feeler at a point beyond the, ulcrum stop, and when the feeler is in its rearwardffeeling position the line of stress exerted bythe spring 18 will be back of the fulcrum stop andteiid to move theV feeler laterally into its proper feeling position, but when the feeler is moved frontwardly on a detecting beat the line of Vstress of the spring willbeexertedata point in front of the fulcrum stop,V as indicated lin l Fig. 3, thereby imparting to the feeler atendency to move longitudinally of the shuttle. The ulcrum stop 21, therefore,.constantly acts upon the teeler to guide it in its frontward movement-'when a workingsupply of lilling is present- Vin the shuttle onfa detecting beat, and acts as a ulcrum about which the eeler swings under the stress of the spring 18 when filling is substantiallyexhausted on a detecting beat. y Y

It may be desirable at times toy change' the direction of the spring stress by shifting the f position ofthe arm 20, which' .may readily be done by loosening the nut 23,positioning the arm 2O and then tightening the nut.

' Mounted ontlie `eeler stand8 is a. lug 26 through which extends agtransmitter 27v the end portion 28 of whichis in the path of movement of the, teeler 11 as .the latter slides along the filling`l` carrier longitudinally e of .the

27 is a train of mechanism for eiecting replenishment'of filling. p i. in Vihat is claimed is:

1. Infafeeler mechanism `for looms, the combination"of a teeleij.stand, a floating side slipping feelery mounted' directly on therfeeler shuttle, and associated withthe transmitter Y i stand, a fulcrum vstop onthe feeler stand, an arm'extending laterally fromthe feeler and having a rearwardly extending end embracing the fulcrum stop, and a spring connect` ed to the end of the arm at a point beyond and rearward of the fulcrum stop when the feeler is in rearward feeling position and frontward of the vfulcrum stop when the feeler is moved frontwardly that the feeler may be given its side slipping movement by the spring when n ythe lling is substantially exhausted on a de tecting beat,

2. In a feeler mechanism for looms, 'the combination of a feeler stand, a floating side slipping feeler mounted on the feeler stand, a fulcrum stop on the feeler stand at one side of the feeler, an arm extending laterally from the feeler and having its end portion turned rearwardly to form a loop between the feeler and the rearwardly turned portion of the arm for embracing the fulcrum stop and a spring acti-ng on the rearwardly extended portion of Ythe arm in a diagonal direction at the rear of the fulcrum stop when the feeler is in rearward feeling position and in a diagonal direction at the front of the fulcrum stop when the feeler is moved frontwardly that the spring may then act with a tendency to move the feeler longitudinally of the shuttle.

3. In a feeler mechanism for looms, ther combination of a feeler stand, a floating side slipping feeler mounted on the feeler stand,

ka fulcrum stop Von the feeler stand at one side of the feeler, an arm rigid with and extending laterally from the feeler and having y its end portion turned rearwardly about the fulcrum stop and a pull spring acting on the rearwardly extended portion of the arm in a diagonal direction at the rear of the fulcrum stop when` the feeler is in rearward feeling position and in a diagonal direction at the yfront of the fulcrum stop when the feeler is moved frontwardly thatthe spring may then act with a tendency to move the feeler longitudinally of the shuttle. Y

4. In a feeler mechanism for looms, the

'y combination of a feeler stand, a floating side l slipping feeler mounted directly on the feeler stand, a fulcrum stop on the feeler stand at one side of the feeler, an arm extending from .A thefeeler and having a looped portion embracing the fulcrum stop, a spring connected to the looped portion of the arm and acting in Aa rearward diagonal direction back of the fulcrum lstop when the feeler is in rearward position and in front of ythe fulcrum stop when the feeler is moved frontwardly that the spring may thentend to move the feeler longitudinally of the shuttle.

5. In a feeler mechanism for looms, the combination of a. feeler stand, a floating side slipping feeler mounted onthe feeler stand,

- a fulcrum stop on the feeler stand, an arm extending laterally from the feeler and having its end turned rearwardly forming a loop about the fulcrum stop, a ypull spring connected to the rearwardly turned end portion of the arm at a point beyond the fulcrum stop and lacting laterally and rearwardly in anlinclined ,direction to move the -feeler to feeling position and exerting a stress upon the feeler when itis moved'frontwardly tending to yswing the feeler longitudinally of the shuttle about the fulcrum stop.

6. In a feeler mechanismfor looms, the combination of a feeler stand, a floating side slipping feeler mounted on the feeler stand, a fulcrum stop on the feeler stand, an arm extending laterally from the feeler towards and beyond the fulcrum stop and having its free end portion beyond the fulcrum stop projected rearwardly about the fulcrum stop, a pull spring connected to the rearwardly extending end of the arm at a point beyond rthe fulcrum stop and acting rearwardly in an inclined direction to ypull thefeeler to feeling position and exerting a stress upon the feeler when it is moved frontwardly tendin to swingthe feeler longitudinally of the shuttle about the fulcrum stop, and means for changing the rearwardly inclined direction of the spring pull.

7. In a feeler mechanism for looms, the combination of a feeler stand, a floating side slipping feeler mounted directly on the feeler stand, a fulcrum stop on the feeler stand at one side of the feeler, an arm extending laterally from the feeler beyond the fulcrum stop and having the end portion turned rearwardly to form a loop about the fulcrum stop,

and a spring connected to the end portion of the arm beyond the fulcrum stop and acting to move the fe'eler to feeling position and to exert stress upon the feeler tending to move it longitudinally of the shuttle about the fulcrum stop when the feeler is moved frontwardly.

8. In a feeler mechanism for looms, the combination of a feeler stand, a fulcrum stop mounted on the feelcr stand, a floating side slipping feeler mounted on the feeler stand and having its front portion extended laterally past the fulcrum stop and there turned rearwardly, an arm secured to the feeler stand, a spring having its rear end connected to the arm and its opposite end secured to the rearwardly turned end of the front portion of the feeler at a point beyond the fulcrum stop and acting in a rearwardly inclined direction back of the fulcrum stop when the feeler is in L rearward feeling position and in front of the fulcrum stop when the feeler is moved frontwardly on a detecting beat.

9. In a feeler mechanism for looms, the

combination of a feeler stand, a feeler to feel which the feeler swings when it moves longid tudinally ofthe shuttle and a'pull spring for moving the eeler to its rearward feeling position and pulling laterallyofn'the feeler rear- Ward of the ulerum pivot When the feeler is in! rearward feeling position and frontward `of the fuloruln pivot when the VV:eeler isV moved rontwardly on a detecting beat to impart a tendency for the eeler to side slip'. In testimony whereof, I have signed my l 3l name to this speeilication.l l

JESSE W.L SIMPKsoN.

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