US2534896A - Stop control mechanism - Google Patents

Description

Dec. 19, 1950 J. c. BODANSKY 9 STOP con'mox. MECHANISM Filed Aug. 25, 1947* 4 Sheets-Sheet 1 A T'J'ORNEYS.

Dec. 19, 1950 Filed Aug. 25, 1947 J. C. BODANSKY STOP CONTROL MECHANISM FIG. 2

4 Sheds-Sheet 2 INVENTOR: JO/ZIZ 630mg;

ATTORNEYS.

Dec. 19, 1950 J. c. BODANSKY STOP comer. mzcumsu 4 Sheets-Sheet 3 Filed Aug. 25, 1947 A TTORNEYS.

Dec. 19, 1950 J. C. BODANSKY STOP CONTROL MECHANISM Filed Aug. 25, 1947 4 Sheets-Sheet 4 ATTORNEYS.

Patented Dec. 19, 1950 UNITED STATES PATIENT" OFFICE/4 STOP CONTROL MECHANISM John C. Bodansky, Gastonia, N. 6., assignor to Cocker Machine & Foundry Company, Gastonia, N. 0., a corporation of North Carolina Application August 25, 1947,. Serial No. 770,491

6 Claims. 1

This invention has general reference to warping apparatus or machines serviceable to wind multiple yarns or threads from a, source of supply, or a creel, onto a spool or beam preparatory for subsequent weaving or processing; while it relates more particularly to the type or species of machine or apparatus including an accumulator means for the temporary unwinding of a portion of the yarns or threads, from the spool or beam in order to locate and repair a broken thread or yarn, whenever such a contingency takes place.

More particularly, the instant invention has reierence :to beam warpers of the kind wherein alternate of the accumulator rolls are sustained by a common support or carrier having capacity for gravitational descent and automatic elevation, .such as the species disclosed in my prior application for a patent, filed the 25th day of August, 1947, under Serial No. 770,490, new Patent No. 2,491,438.

Accordingly, the primary object of my invention is to provide a novel form of accumulator .device for beam warpers in which the movable carrier sustaining the drop-rolls is arranged for inclined descent in opposition to suitable restraining action and automatic elevation, whereas the drop-rolls are elevated by rewinding of the yarns or threads onto the spool or beam aided by counterbalancing means.

Another object of my invention is to provide an accumulator device of the species defined by the preceding paragraph, which includes novel means whereby the beam warper is automatically stopped whenever a yarn or thread breaks.

A further object of my invention is to provide a novel accumulator device and associated yarn or thread clamping means, both of which are electrically-controlled and automatically-acn vated as required.

Other objects, with ancillary advantages, will be apparent, or become self-evident, to those skilled in the art upon a full understanding of the construction, arrangement, and operation of 'the'typ-ical means hereinafter disclosed; but'itis to be understood that my invention is susceptible of other embodiment, or structurally modified Iorms, coming equally within the terms and scope of the claims.

In the accompanying drawings- Fig. 1, Sheet 1, is .a broken side elevation of that portion of a typical form of yarn or thread .beamer, including the accumulator means and clamping device and embodying the fundamentale of this invention, with parts broken-out or in section for a better disclosure of otherwise hidden features, and .also showing the :drop-roll carrier at maximum elevation, or inv an inoperative position.

.Fig, 2, Sheet 2, is a somewhat similar elevational view to the preceding figure but showing the drop-roll carrier as initially lowered to an intermediate position or beaming location ready for gravitational descent in opposition to the influence of its counterbalancing means Whenever a yarn or thread break occurs.

Fig. 3, sheet 3, is an end elevation taken. as indicated by the angled arrows 'IIIIII at the left-hand side of Fig. 1. I

Fig. 4, Sheet 1, is a diagram of an electrical wiring system suitable for controlling the mechanism illustrated by the three preceding figures or when the drop-roll carrieris in beaming location and about .to commence gravitational descent.

Fig. v5, Sheet 4, is a similar wiring diagram depicting the relative position of the electric system when the carrier is at its low level limit of movement.

Fig. 6 is a corresponding diagram showingthe electrical system during ascent of the carrier.

Fig. 7 is a diagram showing the relation of the electrically controlled items in the system when the carrier is at maximum elevation, or in the inoperative position; and,

Fig. 8, Sheet 3, is a detail hereinafter fully explained In describing the typical form of my invention shownby the accompanying sheets of illustrative drawings, specific termswill be employed for the sake of clarity, but it is to be expressly undenstood the scope of said invention is not thereby limited; each such term being intended to embrace all reasonable equivalents which perform .the same function for an analogous purpose.

Referring more in detail to the drawings, and first to Figs. 1 to 3 inclusive, the reference characters 8, 9, comprehensively designate fragmentary portions of the spaced side frames .of a known type of beam-warper, said frames having their for-ward edges inclined at I 0 and being connected together by a front wall ll, Fig. 3. In addition the side walls 8, 9, afiord rigid attachment, as by securing means 12, for forwardlydirected extension members !3, l3 that jointly afford rigid support for the eye-board 14., .as well as the yarn or thread clamping. device [5.

Fixedly mountedon the inclined front wall H :are spaced track-bars or rails l6, and progressive on said rails is is a carriage or carrier I], including spaced members l8, approximately main: tained in parallelism; while it is to be notedsaid members it embody upwardly-directed spaced extensions or arms 20, defining an intermediate gap 19, between the upper ends whereof are journaled on stationary axes 2|, the drop-rolls .22. On theother hand the relatively stationary accumulator-rolls 23 are similarly journaled .en fixed axes 24, rigidly secured transversely intermediate the side frame extension-members i3 aforesaid. The spaced members it also embody downwardly-directed portions or legs which are maintained in parallelism by a transverse tie or brace 26; while it is to be observed the said legs 25 are equipped with inwardly directed stub axes 21, affording rotatory bearing for grooved wheels 28 coactive with the rails l6 and whereby the drop-roll carrier I! is movably sustained, as hereinafter fully explained.

At this juncture it is to be noted that the carrier I1 is, preferably, elevated by means of a suitable-motor 29 conveniently although not essentially, attached by securing means 3 to a wall 3| intervening the side frames 8, 9, while the drive-shaft 32 thereof is provided with a sprocket-gear 33 about which is trained an endless chain. 34, which similarly coacts with a sprocket clutch 35 on a transverse shaft 36 journaled in drop-bearings 31 made fast to the frame extension members 13, i3 aforesaid. The sprocket clutch 35, it is to be understood, is adapted to drive the shaft 36 in one direction only under action of the chain 34 when the motor 29 is activated to elevate the carrier l1; whereas said sprocket clutch and chain 34 are stationary when the motor 29 is inoperative. It is also to be noted that the carrier I! is enabled to smoothly gravitate downwards for a portion of its travel by aid of counter-balancing weights 38 pendent from the relatively outer ends of suitable chains 39. These chains 39 are trained over gears 40 fast on and freely rotative with a shaft 36 journaled in drop-bearings 4|, and over similar gears 42 fast on the transverse shaft 36; while said chains 39 have their inner ends attached at 43 to the carrier l1.

Referring to the clamping-device l5, the same is of the type disclosed in another application filed by me on the 25th day of August, 19%, under Serial No. 770,492, now Patent No, 2, l9l,- 439; that is to say, said device includes an anvil 44 and a relatively movable clamping bar 45, the latter being raised relative to said anvil by toggle- ,levers 46, 41 at each side of the warper. The one or right hand lever 41, in Fig. 3, is conjointly made fast with an associated gear 59, as by a key 48,. to a transverse-shaft 49 appropriately journaled through the side-frame extension members I3, l3; while said gear 59 is in direct mesh with a complemental gear 5| attached on the drive-shaft 52 of a torque or other suitable electric motor 53, stationarily secured by attaching means 54 to a bearing bracket 55 conveniently projecting laterally from the adjoining extension member l3 aforesaid.

56 is a push button, and 51 a switch-box, both of which are hereinafter referred to in connection with the electric control system, which forms an important feature of the instant improvement; while 58 are the yarns or threads, and 59 are downward movement-limiting stops for the carrier H, as later on explained.

' In order to hold the carrier ll normally elevated or during the actual beamin operation, I conveniently attach to one of its side members .18 a trip device preferably in the form of a fiat rectangular element 60 embodying a planarlyrelated corner tooth 6| having a taper end 62, and

a laterally-directed projection or rib 63; said tooth 6| being adapted to seat on the upper face of a movable stop 64 under the projective influence of a spring 65. The stop 64 is mounted at the outer end portion of a pressure-influenced piston or the movable component 66 of a pneumatic-device 5?, for example, made fast to the adjoining beamer side-frame 9; while said stop 64 is depressible by a coactive trip lug 68 also secured to, ormounted on, the frame 9.

The pneumatic device component 66 is outwardly influenced by an encircling spring 69, while said component 55 also includes a holdertooth or lug Til having a taper-edge H for coaction with the complemental face 12 of a springinfiuenced solenoid-actuable stop 13. In addition to all of the foregoing, there is also rigidly secured to the side frame 5 a switch l4 having a projecting lug including a bearing pin 35' proximate its outer end, for a pivotal trigger 16. The trigger 5' 15 embodies a taper end if and an opposinglyrelated tooth 13, which does not coact with or depress the switch plunger 14' during downward movement of the carrier lateral rib 63; while 19 designates the movable element of a trip switch 89, that is only acted on incidental to elevation of the carrier ll to the maximum elevation of Fig. l; and all of which are later on hereinafter further referred to.

Having outlined the various structural items involved in my improved stop control mechanism for beam warpers, I will now describe the related actuation thereof with reference, more particularly, to the electrical diagrams shown by Figs. 4 to 7 inclusive. It is firstly to be noted that the current supply lines are comprehensively designated c, s, while the carrier ll is in its uppermost position ready for normal beaming of the yarns or threads 58, that is to say with the droprolls 22 in parallelism with respect to the accumulator rolls 23 and the clamping-device i5 inactive or open, as shown in Fig. 1. It will be readily understood that when the normal beaming operation is interrupted, such as whenever a yarn or thread 53 breaks that the machine will stop, in accordance with known procedure, whereupon the operator depresses the push-button switch 56 to bridge the associated contacts 8| which closes a circuit from the lower current conductor 82 across said contacts 8! through lines 83, 83 to coils B4 of switch 85 controlling the holder stop l3 and thereby retracts the latter, with return by way of line 86 to the middle current concluctor 81. Retraction of the holder stop 13 releases the carrier ll bearing the drop-rolls 22, for slow gravitational progression down the track rails l5 under the joint influence of the counterweights 38 and the movement restraining action of the pneumatic device Bl, which latter device tends to retard or hold-back said carrier I! by means of the movable spring loaded stop or catch :2 sustained by the component 66 of said device When the operator depresses the push-button switch 56 the following additional circuits are also completed, one circuit from the line 83 of switch 85 by line 88 to one end of the coil 89 of an auxiliary-switch 90, conveniently located in the box 5'! hereinbefore mentioned, througs said switch and by return line 85 to middle conductor 81. The other circuit first above referred is established as follows from the switch 85 to contact 9|, in line 88, and branch line 92 to the top contacts 93 of the normally-closed double-pole switch 14 by aid of the upper blade 95 thereof and, by line 96, Fig. 4 to the left-hand coil 9'! of a reversing switch 98likewise in box 5'land line 99 to middle conductor 81. When the circuit through the auxiliary switch 99 is completed, energizing of its coil 39 retracts the associated core with resultant bridging of the contacts I01, whereby "ply c, s.

normally-closed trip switch '80, and blade Ill-s of the now closed auxiliary switch 95, through the .coil 89 of the latter switch and line 86 to "the jmiddle current conductor 8i of the current sup- This last mentioned sub-circuit enables establishment of another circuit from the bottom supply conductor 82 through the switches 80, '98 and 14, and through the left-hand coil 91 of the reversing switch 98 to the middle conductor 8! or the current supply c, s, inasmuch as the switches 80 and 9t by-pass the push-button switch 56 the just mentioned circuit being maintained even when the operator releases the switch "When the circuit through the left hand coil 9 of the reversing switch 93 is established, it is'to'be observed that the blade Hit of said'switch,

'i'by bridging the lower contacts Hi5, Fig. 5, closes I f'ajfurther circuit as follows from the feed in "conductor 82 by branch line 1%, across the now elevated right-hand switch blade is! and line N38 to the yarn or thread clamping-device operatingrnotor 53, thence through said motor with return line N19 to upper current supply line lit, see 'Fig. 5. Operation of the motor 53 will, obviously,

e'fiect collapse of the toggle-levers 46, '4? and fthereby lower the clamping-bar into active gripping. engagement on lay of yarns or threads 58 againstthe anvil d4, see Incidental to initial release of the carrier H,

from being held up at its uppermost level, as '[SihOWIl in Fig. 1, by the holder-stop 13, said carrier will'des'cend a predetermined distance orunthe drop rolls 22 contact the lay of yarns or threads 58 at approximately the level designated fby the broken line circles C! in Fig. 1 where they are temporarily restrained incidental to coaction o! the .parts 64, 6] aided by support afforded by "the lay of yarns 01' threads 58 and the retardative action of the pneumatic device 5?.

However, when the carrier 11 is freed by impact of 'the spring-loaded stop 64, against the stationary [trip-lug 68, said stop 64 will be forced away from contact below the carrier-borne corner-tooth 6!.

Movement of the stop 54 as just stated releases the movable component '66 of the stationary pneumatic device 51 for projection above'the carrier corner tooth 6'! under the action of the essoci'ated spring 69, in an obvious manner; whereupon the carrier I1 is freed for gravitational tiescent down the inclined track rails 15 to its low ,level of movement, or into engagement with the limit stops 59, with the drop-rolls 22 in the position designated "by the broken line circles 72 in Figs. 1 and 2. Incidental to gravitation of the 5! are impacted by the carrier H, with concurrent formation of loops by the drop-rolls 22 for ready detection and repair of a broken yarn or thread 58, inaccordance with prevailing practice.

After the broken yarn or thread 58 has been "repaired and the warper re-started the lay of yarns or threads 58 will draw-up the carrier borne drop-rolls 22 aided by the now descending counter-weights 38 until said drop rolls 22 are approachin the level designated 0 in .Fig. '1,

whereupon the trip-device lateral rib "53 engages and rocks the pivotal trigger 16 clockwise to thereby depress the stem 14' of the switch 14,

95 of said switch 14 to move and break the circuit across the contacts 93 to and through the 'lefthand coil 91 of the reversing switch 98, and

establish another circuit from the feed-in conductor 82 by way of line 83, blade I82 of tripswitch to blade )3 of auxiliary switch 9E3, line 88 and branch I I l to and across middle contacts 94 of double-pole switch (4, and thence by 'line I [2 to right-hand coil H3 of the reversingswitch 98, with resultant transfer of left-hand switch blade Hi4 from the contacts I95 to'the super-spaced contacts H4, see Fig. 6, whereby a circuit is established as follows from the current conductor 82 by way of branch H16 across contacts H4 and line H5 to motor '53, thence by way of line N39 to current conductor I Ill. At the same time another circuit is closed by aid of switch blade Iii! engaging contacts I! from condoctor 81, line H9 across contacts H! and lines H6, N38 to motor 53 with return by line Hi9 to conductor H0, whereby said motor '53 is reversed to effect expansion of the toggle-levers G6, 41 with resultant elevation of the clamp-bar 45 from grippage on the lay of yarns 58 on the anvil 4 1. Simultaneously with the reversal of the motor .53 the bottom blade I 29 of thedouble-pole switch 14 eiiects closure of a circuit as follows, from the current supply conductor 82 by way of line 83 to andacross the lower contacts iZl of the doublepole double-throw switch M by aid of bottom blade I20 and on by-line 123 to the coil in of triple-pole single-throw switch E25, also in the 'box 51 hereinbefore referred to, that controls carrier I I is elevated, the trigger Hiwill be rocked clockwise by the taper end 53' of the carrier rib -63, see a: in said figure, until it passes from below the end 63", Figs. 1 and 2, of said rib whereupon it automatically swings into "the position of Fig. 7, or that designated y in Fig. 8, under the influence of an associated recoil spring 16. The switch M- is not affected, or operated, during the downward travel or movement oi the trip-device lateral rib 63 on the carrier H, as readily appreciable on an examination of the drawings; or. in other words, by counter-cloclnvise rocking oi the trigger Iii, as indicated by the dotted showing a: in Fig. 8, durin the first portion of descent of the carrier ll, such trigger simply rides freely under the rib ta without any depressive influence being exerted on the plunger is cf'the switch M.

Energizing of the coil 124 will, obviously, shift the movable component I26 from the open position of Figs. 4, 5 and 7, to the closed position of Fig. 6; or, with its blades !27. 828 and Q29, engagin the respectively associated contacts I39, 13! and 132, and, as a result, the carrier raisingmotor 29 is caused to automatically assume elecircuit through the coil of the auxiliary-switch 98 and thereby open said switch so, with simultaneous interruption of the circuit through the switch 85 that controls the solenoid-actuable I costs.

conversant with the related arts.

holder catch 13, and thus permits said catch to fly back into arrestlve position below the carrier corner tooth 6|. At the same time the circuit through the right-hand coil H3 of the reversing switch 98 is broken and thereby permits the movable components ltd, I35 thereof to return to the neutral position of Figs. 4 and 7 with resultant de-energizing of the clamping-motor 53, in an obvious manner.

Particular attention is also directed, at this juncture, to the fact that as the carrier ll travels upward by aid of the motor 29, the trip-device lateral rib 63 encounters and rocks the pivoted trigger 15 over clockwise which, as said parts 63 and 16 become later disengaged, permits the trigger 16 of the double-throw switch M to return to its normal position of Figs. 4 and 7, which breaks the circuit across the bottom contacts l2! of said switch to and through the coil I24 of the carrier raising motor 23, whereby the latter is stopped. I

As a result, the carrier i! now descends by gravity until engaged by the spring-loaded movable stop 64 which is projected into and below the corner tooth 6! of the trip-device 60 under the influence of the associated spring 65, whereupon said carrier is positively arrested and held stationary by the holder stop '53, in an obvious manner; when the beam warper is again in position ready to resume beaming.

From the foregoing description and an examination of the drawings it will be readily understood that by my present invention I have provided a simple and efficient stop-control mechanism for beam warpers or analogous machines which greatly increases the efficiency thereof, with an obvious reduction in overhead operating It is furthermore, felt that from the fore going disclosure, the merits and advantages of my improvements will be clearly appreciated by those Accordingly, while there has been shown and described one practical embodiment of my invention, it is to be understood that changes and variations in adapting said inventions to different types of beam warpers are hereb contemplated, and which may be fairly included within the terms and scope of the following claims.

Having thus described my invention, I claim:

1. In a beam warper of the type having a warp control means between a source of warp supply and a selectively driven warp beam, said warp control means comprising a first set of rolls having fixed axes, a, second set of rolls, a carrier for said second set of rolls, said carrier being mounted for movement between an upper position in which warp passing between the two sets of rolls is untensioned thereby and a lower position in which the warp is drawn into loops of substantial length and the movement from the upper to the lower position being solely caused by gravity, said carrier being normally releasably held in said upper position, means for releasing said carrier, means for checking the first portion only of the downward movement of the carrier, means for releasing said checking means whereby said carrier completes its downward movement unrestrained thereby, said carrier being thereafter raised to an intermediate position by the pull of the warp thereon, and power means for raising said carrier from only said intermediate position to said upper position.

2. In a beam warper of the type having a warp control means between a source of warp supply and a selectively driven warp beam, said warp control means comprising a first set of rolls having fixed axes, a second set of rolls, a carrier for said second set of rolls, said carrier being mounted for movement between an upper position in which warp passing between the two sets of rolls is untensioned thereby and a lower position in which the warp is drawn into loops of substantial length, and the movement from the upper to the lower position involving a gravity descent of the carrier, said carrier being normally releasably held in said upper position, means for releasing the carrier for initial descent to an intermediate position followed by gravity descent to the lower position, and means whereby said carrier may thereafter be automatically elevated to said intermediate position by the pull of the warp thereon.

3. In a beam warper having a warp control means between a source of warp supplyand a. selectively driven warp beam, said warp control means comprising a first set of rolls having fixed axes, a second set of rolls, a carrier for said second set of rolls, said carrier being mounted for movement between an upper position in which warp passing between the two sets of rolls is untensioned thereby and a lower position in which the warp is drawn onto loops of substantial length, and the movement from the upper to the lower position involving a gravity descent of the carrier, said carrier being normally releasably held in said upper position, means for releasing the carrier for initial descent to an intermediate position followed by gravity descent to the lower position, means for cushioning and counter-balancing the gravity descent of the carrier, and means whereby said carrier may thereafter be automatically elevated to .the vicinity of said intermediate position by the pull of the warp thereon.

4. In a beam warper, as defined in claim 2, an inclined track engaged by said carrier and guiding the same in its descent and elevation.

5. In a beam warper, as defined in claim 2, wherein the carrier for the movable set of rolls consists of spaced side members having roller elements thereon and having upwardly-directed spaced arms on which the movable rolls are mounted for free rotation, an inclined track engaged by the roller elements of said side members and guiding the carrier in its descent and elevation.

6. In a beam warper, as defined in claim 2, pressure-influenced means effective to hold the carrier at maximum elevation and to hold said carrier stationary during the normal beaming operation, and when released freeing the carrier for gravitational descent, additional pressure-infiuenced means engaged with the carrier for cushioned restraint of said carrier during a portion of such gravitational descent; and means eifective on release of the last mentioned means to counter-balance the farther gravitational descent of said carrier to its lowermost position.

JOHN C. BODANSKY.

REFERENCES CITED The following references are of record in the file 0. this patent:

UNITED STATES PATENTS Number Name Date 2,302,700 Lambach Nov. 24, 1942

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