US1820401A - Warping machine - Google Patents

Description

Aug.25,1931. G, su 1,820,401

WARPING MACHINE Aug. 25, 1931. G slpp WARPING MACHINE Filed Nv.

6, 1928 2 Sheets-Sheet 2 A TTOHNEY Y Patented Aug. .2*5, 1931 f UNITED STATES- I l 1,820,401.V ,y

, GRANT srrr, or rA'rEnsoN, NEWJERSEY,-ASSIGN0B To srrrnns'rwoon conr'oRATiIo'n, ory PATERsoN, NEW. JERSEY, lA CORPORATION origNEw rnasinry f [Q cipal objects the following, to"wit,(1)-to WARPING MACHINE" "AppucauQn-'mea Nqvembes, 192s. Seria; No. 217,650. f

This invention relates to warping ma clnnes and in vparticularv to the means for controlling the reel of such machines. The present improvements have for their prin,v

have the reel' entirely free yof any' braking action while the power to rotate. thel same is on and subject it tol such braking action when -thepower is cnt'of, and have such v10,l braking action when `appliedbringthe reel smoothly orin eased'ashion to a stop, thus to insure on such,stoppingthatV the 4warp threads'bel kept taut between the reel andthe spools on the creel from V'which they are drawn, and in this connection `also to provide for adjustment of the braking vpressure f to suit diiiierent speeds at which the'reel may be drivenor permit the reel when' ro-k tated at a given speed toA continue rotating a more'orgless distance, as the operator may wish, after the inception of eachbrake-application; (2)` to providefor locking inthe working position the means for applying will continue running alone, or vwithout effort on'the part of the operator; (3) to provide `:tor locking the braking means in idle positionv so that the reel is free for l manuall rotation as the operator may yat times require; and (14)' to accomplishthese various objects by mechanism which is simmachine embodying the present improve-l ments Fig. 2 is av left-hand end elevation oi? the Y machine, the reel and certain other'convelr 40, e

tional parts being omitted; i Fig. 3 is a fragmentary si volved in the invention; v

Fig. 4 is a plan, partly in section, of a detail of Fig. 3; y

Figs. 5 and 6 are elevations lof certain parts inFig. 3 as seen from the rightand left, respectively;

Fig.V 5w is a 'plan of parts appearing in Fig. 5. f i

` ley) to the'reel so that-the `machine i dev elevation. i partly 1n section, ofthe parts directly iin- Figs. and 8 are sections on'lines 714-7; i

and: 8 8, respectively, of Fig. y2; and

insection. -In a framel of the supporting. structure is journaled thereel 2 having afconcentrie rim 3. Meansv tofapp'ly drivingipower. to the reel is yaiforded by the rotary driver'li` (here driven by `beit 5 from any going pulvuv movable into or ontof peripheral contact with thei'wheel rim by lever Gxfulcrumed at 7between its ends kand connected with av treadle lever 8V` by a link 9, lever' Sbein'g held normally elevated (so that the driver.

is clear of the rim). by afspring-ltl, an arm Fig. 9 riS afront elV vationof Fig.:8, partlyi f 1l on said lever then abutting the yframe as.

a stop. So'- much` is usual-fand well known.v 13 1s a brake-band extending around' rim yand'snpported by the means'lt and l5 (carriedby the frame and forming parts ofthe e Supporting structure as a whole) so as to be.

capable of being tightened or slackened sub V stantially as in my Patent No. 11,657 ,044 g itincl'udes a stiff metal strip having a leathery lining-13a. f. l l

i When beaming is-being done the brake1 rband is tightened to impose a drag on the reel so that the warp will be wound tightly onfthe beam. Heretofore for the warping operation the brake-band was for the time beingv usuallysla'ckened but sov that it still aiforded Ythe resistance required fi'or stop.

e ping, remaining, however, active as well when the power was onas when it 'was cut 0E, sothat wasteof power/and wearoi` the brake-band and wheelrim'were consequent results and it was furtherV difficult in setting the strap to adjnstit so as vto complete the stopping action, regardless of the speed of the reel," in a predetermined interval after. inception of the stoppingfor braking, action. By the present invention I avoid these consequences and attain the .other advantages hereinbefore pointed out.

An elongatedfbracket lprojects from the frame 1 in radial `relation tothereel, preterably' horizontally, being provided with a block 16a V(Figs. 3 and 4) which issecured to the'bracket by a bolt V166 and-coacts with.;

- an offset'l'co the bracket to forma clamp.,

- gripping a flange 1a of the frame. In the ree end of the bracket is a fulerum pin 18 for a lever 1'7 (bifurcated in plan, Fig. 5a) having upwardly and downwardly extending arms 17a and 176 and a presser| arm 17 c which is bent toward the outer face of the brake-band andk preferably has its terminus convex, the fulc-rum 18 of said lever being parallel with the axis of the reel. To reinforce bracket 16 there may be a brace 15a connecting parts 15 and 1S as shown. Arm

17a is connected by a spiral spring 19 with a threaded stem 20 penetrating freely an upstanding arm 16d on the bracket and having a nut 20a and also a lock-nut 206 screwed thereon. Arm 176 has an extension 176 adjustable around the pivot at 176 by virtue of the slot-and-bolt clamping means at 176 A staff-like crank 21 upstands rigidly from the fulcrum portion of the treadle-lever. PivotallyA connected at its rearward end to extension 176l and supported at its forward end as hereinafter stated is a link 22 having abutment 22a forward of and adapted to be engaged by crank 21 when the treadle lever is depressed. For warping the brake-band is adjusted so that of itself it would oppose no appreciable resistance to the rotation of the reel, but the level' 17 is normally held by spring 19 with its arm 17 c pressing the brake-band against the reel-rim so that in a limited region, only, of itself the brake-band is made normally to apply localized braking pressure to the reel. When, however, the treadle lever is depressed to drive the reel, its crank, acting on the link at 22a, retracts the lever 17 against the tension of the spring, freeing the reel. Thus, with the treadle lever depressed to apply the power the brake is released, and with the treadle lever elevated, cutting off the power, the brake is set. braking pressure is determinable at will by adjusting the tension of the spring at 20w, 206. An important feature of this part of my invention is the application of the braking pressure to a localized part of a brakeband as distinct from exerting a pull on the band to constrict it to the braking surface afforded by some appropriate peripheral surface of the reel, as rim 3, or utilizing a brake having its braking face concave and fitting such surface, either of which is in practice entirely unsuitable because it invariably produces an intermittent binding and hence hesitating stopping which causes the warp threads to be left more or ess loose between the reel and creel when the stopping is completed. Since the arm 170 presents a pressure surface of limited area to the brake-band the effect is to Abend the latter inward from its normal state against the reel rim so that only a limited region of the band is in fact active to exert pressure on the rim, and this gives an eased or grad- They ual and non-intermittent` stopping not otherwise possible.

A revoluble shaft or bar 23 is journaled in the ends of the sides of the frame structure and has aflixed thereto at the far end in Fig. 1 a crank-24 and at the near end a crank 25, the whole forming what I term herein a shifter. Crank 24 forms one element of a'toggle-connection between shaft 23 and the treadle lever the other element of which is a link 26 which is pivoted to the crank at 24a and has a longitudinal slot 26a receiving a stud or pivot 8a on the treadle lever, the upper end of the link projecting upwardly beyond pivot 2&1@ and forming a bunter to impinge against the shaft 23 when the crank has been turned anti-clockwise in Figs. 1, et or 7 until the pivot 24a has passed a plane coinciding with the axis of the shaft and pivot Se. lVhen the shifter is so turned it acts through 24--26 'to depress the treadle against the tension of spring 10 and becomes toggle-locked in the new position (dotted lines, Fig. 7 and in this position of the part the power is applied and the braking pressure removed so that the machine will continue running unattended until the toggle-lock is disestablished, which may be effected by turning the shifter clockwise either by hand or pressing suddenly on and then releasing the treadle so that pivot 24a returns past the mentioned plane.

The crank 25 has two arms 25a and 256 which in the idle `position of the mentioned shifter depend vertically. One of these, 25a, is forked and receives the forward end of link 22, having a pin or bolt 27 penetrating a longitudinal slot 226 of the link. rlhe other, 256, has a latch 28 which is springpressed against a boss 29 at the inside of the adjoining side of the frame structure 1 and has its acting end (the one engaging the boss) tapered and adapted to enter a tapered notch 29a in the periphery of the boss when said shifter has been moved from its said idle position clockwise so that said crank stands in the dotted position of Fig. 3. The beveling incident to tapering the latch and notch permits theV lock thus established to be forcibly disestablished by turning the shifter back or anti-clockwise by hand.

Vhen the shifter is locked in the position last described its pin 27, acting against the outer end of slot 226, acts to hold link 22 shifted to the left in Fig. 3, so that the brake is released; the reel is thus free to be rotated directly by hand.

Slot 26a is present in link 26 to permit the shifter to move' clockwise to latched position (to act, through link 22, to hold the brake released.) independently of the treadle lever, then fully elevated.

To recapitulate: The shifter may assume either of the three positions I, II and III designated in Fig. 3. In position I the l the treadle lever.

shifter is idle and whenever'the operatorr depresses thetreadle lever the reel will be rotated and whenever the treadle lever is al-" lowed to rise the reel will be stopped.r In

position II thetreadle will be locked' down,

acting through 21--22 to holdy the brake released and through 9-6 to apply the'f'power.

In position IIIthe brakeis held releasedV by the shifter, so that the reel is free to be rotated by hand or by power through the treadle. In lother words, the shifter and link 26 constitute movable grip-controller-movable to one position to lock the power-applying means in the posit tion for 'applying the power and retracting the braking means and to the other position to lock the braking means in retracted position; and, further, in an intermediate vposition in its range of movement said controlling means lis inactive to perform eitherl of rthese functions, so that both the braking and p,ower-applying-means remain operative and cooperative inthe manner described subjectr v What I claim is:

V1. A warping machine comprising, with a supporting structure and sa reel journaled therein and having around its axis a braking surface, means to apply braking resistance to said surface including a brake-band supported by said structure with a portion thereof in face to facerelation to said surface, and means to press said portion against said surface having its pressure surface of relatively limited area. 'l f 2. A warping machine comprising, with a supporting. structure and areel journaledl therein and having around its axis la brak-r ing surface, means to apply braking lresistance to said surface including a brake-band supported by said structure with a portion thereof in face to face relation to saidsurface, and means to press said portion against said surface having its pressure surface of relatively limited area and convex.

3. A warping machine comprising, with a supporting structure and a reel journaled therein and having around its axis a brak- Aing surface, means toV apply braking resistance to said surface including a brake-band supported by said structure withza portion thereof in face toface relation tov said surface, a pressure member movable to pressY controlling y means-offwhich shaft 23 forms a hand-y said portion fagainstsaidcsurface .and lian-1 ing its pressure surface offrelatively limited area, `means ato. :supply driving power ,to ,the reel and means 1 common;` to said pressure miem/ber and the .lastanamed-means .for controlling them; "f @4. A? warpingmachifne `comprising, with-lsuppontin-g structure and; a: reel journaled therein, Vmeans",zi'novable to apply driving powerto :the reelA nincluding.ra zftie'adle :for effecting such movement: of said means, and a @toggle-flock connection-@extending upward ly efrom the tiieadle to said structure-and having one, member I'revoluble in? the latter and comprising 4a horizontal A axialev hand-.grip controller.`

155 A; rwarping .machine comprising, .with

- pgporting:structnreand yias-reeljiournaled therein ,and having i.,around its A:airis a braking-surface,-

raking means mo'vablej; to and from and 'lioi'rmially urged against ksaid Sub face to applywbraking resistance" tot thereel', meansinovableizto apply drivin-g power awk vthe reel a-ngcl simultaneously :retract the liist: means, and means lniov'able findependentlyof Y the' second @inea-ns against vkand thereupon rst means zin `retractedf i n kj; 6.' 4A Warpingfmachine comprising, with'ga supporting structurefand,` a -.reel :journaled therein and shaving- :arouiid its axis a brak* ingy surface, braking means movable fto and l from l and normally urged Aagainstv said surfaceto apply braking resistance to theiieeL means movable 5to apply vdriving :power lIto 1 thef'relellandsimultaneously retract the rst means, and means movable independently of the second means .against and thereupon adapted tol lock the first means in retracted- Vpositionincluding a lcontroller revoluble in said structure. n

' 7. A warping machine comprising, with*` a supporting structure and a reelv journaled therein and having around its axis a braking surface, braking means` movable to and from and normally urged against said surface to apply braking resistance to the reel,

means movable to apply driving power to the' reel and simultaneously retract the rst' means,y and Ymeans movable against and thereupon adapted to lock the vfirst means in retracted positionv including a horizontal hand-grip controller shaft revoluble in saidl structure. `8. A warping machine comprising, with a supporting structuresand a reel journaled i thereinand having around rits axis a braking surface,braking means movable to and` l from and normally urged against vsaid surfaceto apply braking resistance to the reel, means movable to apply driving power to the reel and simult'aneouslyretract the first means and controllingmeans movable to one position to cause the second means to undergo such movement and to another position iscr to cause the braking means to undergo retracting movement.

9. A warping machine comprising, with a supporting structure and a reel journaled therein and having around its axis a braking surface, braking means movable to and from and normally urged against said surface to apply braking resistance to the reel, means movable to apply driving power to the reelfand simultaneously retract the first means and back-and-forth movable con trolling means movable in one direction to cause the second means to undergo such movement and in the other direction to cause the braking means to undergo retracting movement.

10. A warping machine comprising, with a supporting structure and a reel journaled therein and having around its axis a braking surface, braking means movable to and from and normally urged against said surface to apply braking resistance to the reel, means vmovable to apply driving power to the reel and simultaneously retract the first means and back-and-forth movable control-.

ling means normally occupying a position where it is inactive on either the braking or second-named means but movable therefrom in one direction to cause the second-named means to undergo movement to apply driv ing power to the reel and retract the irst means and in the other direction to cause the braking means to undergo retracting movement.

In testimony whereof I aix my signature.

GRANT SIPP.

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