US1437865A - Clock for warping machines - Google Patents

Description

A SAULNIER. CLOCK FOR WARPING MACHINES. APPLICAHON FILED JAN-25,

Patented Dec. 5, 1922.

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A. SAULNIER.

CLOCK FOR WARPING MACHINES. APPLICATION FILED JAN.25, 1921.

l ,48'7,865 Patented Dec. 5, 1922.

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Patented Dec. 5, v 1922.

ABSENE saun'mnn, or wamnm, massacnusm'rs.

CLOCK FOB WARPING MACHINES.

Applloation flled January 25, 1921. Serial No. 439,777.

To all whom it may concern:

Be it known that I, ARSENE SAULNmma citizen of the United States, residin Waltham, in the county of Middlesex, tate of Massachusetts, have invented a certain new and useful Improvement in Clocks for Warping Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention has relation to the so-called clocks which are employed in warping and other machines for the purpose of registering the length of assembled threads which passes through a machine, and of bringing about the stopping of the machine when a which indicates the passage of the total predetermined len h.

Trouble and oss are experienced often in practice in consequence of accidental displacement of the follower of a clock relatlve to the turns of the spiral of the clockscroll. Such displacement results in false registration by the clock, and in inaccurate measurement, involving for instance either too many or an insufficient number of yards ,of threads being passed through the mapredetermined measuredlength has passed.

It further has relation to clocks on the order of what are termined lease-clocks, these being contrived to cause stoppage of the machine-at intermediate points during the assage of the total predetermined len th 0 assembled threads, for the purpose 0 enabing lease-threads or cords to be introduced at predetermined intervals among the assembled threads. a

The invention consists in novel locking means for the follower of a warper clock,

, and embodies the same general principles as the locking means ofthe same class that is -more broadly claimed in my application for U. S. Letters Patent for improvement in clocks for warping machines'filed January 22,1921, Serial No.- 439,128.

In usual practice, the clock of a warping machine comprises a spirally-grooved barrel, called a scroll, and a follower engaging in the spiral groove of the scroll. The scroll is geared with a measuring roll which is rotated through the contact of thetraveling arns with its periphery, and the'follower is'traversed to act in connection with other parts with which it is associated to indicate duction of lease-threads or cords, and

1nto action at the required time or times the stop. motion mechanism of the machine. In the case of some warping machines the clock brings about the stoppa of the machine only on the completion o the required total length of assembled threads. In the operation of a lease-warper the clock causes arrest of the machine after a certain numberof yards has passed through, whereupon the attendant'introduces lease-threads or cords and'restarts the machine, the stoppage, in-

restarting being repeated at intervals until the final automatic stoppage of the machine chine. Displacement is not detected readily, and usually passed unobserved so that the error is not discovered until later on in the handling or use of the assembled threads.

What has just beenstated will be more clearly apparent after reference to the practice in connection with beam warpers. A beam warper is employed to wind threads on a beam, from spools mounted in a creel, until the required length of threads has been thus wound. The number .of threads thereby wound upon the beam is a fractional part of the entlre number of threads required to make the contemplated warp, and constitutes one so-called section of the warp. In like manner as many sections are wound upon other beams as are necessary to make up the required total of-the threads for the said warp. All of the sections are combined at the slasher, and after passing all together through the later are wound u on a single beam, in readiness to be place in a loom. Obviously all the sections of a warp 10llll be of the same length. If one or more sections, through error in the winding thereof upon the corresponding section beam or beams, should be either shorter or longer than the others, loss or trouble would result. The excess of length in the case of the longer section or sectionsof a warp would become waste.

The purpose of-the subject-matter of the present lnvention is to prevent displacement of the follower.

An illustrative embodiment of the inve! tion is shown in the accompanying drawings, in which,-

s Fig. 1 is an elevation of a warper-clock n of a form in general use at the present time, together with a portion of a warper-frame in vertical section, and a portion of the measuring roll of such machine.

Fig. 2 is a side elevation of the are shown in Fig. 1.

Fig. 3 is a plan view of the said parts.

parts that Having reference to the drawings,-

One side-frame of a warping machine is shown at 1 (partly). The measuring and registering devices shown in the drawings include the measuring roll 2, which, as usual, is rotated through the contact of the traveling yarns with its periphery, the. spirally-grooved scroll l0, and motion-trans-.

mitting connections by which the rotation of the measuring roll 2 serves tocause the scroll. to rotate The said connections comrise in this instance the worm 4 on one ournal, 3, of the measuring roll, the wormwheel 5 engaged by the said worm, the worm 6 on the shaft 7 of the said wormwheel 5, and the worm-wheel 8 fast with the scroll 10. The. shaft 7' and the scroll 10 are suitably r'fidunted in connection with the upright ortion 11 of the clock-frame, the latter being attached to the side-frame 1 of the warper. The particular form of warper-clock that is shown in the drawings is what is termed a lease-clock, the scroll 10 being provided with a series-of longitudinal lease-grooves 10 10 in addition to the final stopping notch 1O at the end of the scroll. The lease-grooves extend longitudinally of the body of-the scroll and intersect the otherwise continuous spiral groove of the scroll, as usual. The follower-arm 11 is provided with a projection 11*, Flg. 2, working in the spiral groove of the scroll 10 and adapted to drop into the longitudinal.

lease- grooves 10, 10, and into' the final, stopping notch 10. as the respect1ve leasegrooves and the said-stopping .notch successively are presented to the said projectionv The said I follower-arm is hung upon the shaft an exll by the rotation of the scroll.

tendingfrom the side-frame 1 parallel with the scroll-axis and is adapted to slide along the said shaft inbeing traversed by the ac-' The tion of the scroll .as the latter ,turns. projection 11 of the follower is kept down against the bottom of the spiral groove of the scroll by the weight df themain arm of the follower. tains the follower so as to kee tripping-finger 11 is c ear of the co-acting stop-motion devices (not shown) so as not to interferewith the running of the machine. Each time during the rotation ,of the scroll a lease-groove 10 (each of which is deeper than the scroll-groove) is presented in position to receive the projection 11", the follower drops as in-Fig. 2, so as to cause the trip-arm or finger 11 to be moved into position to bring about unshippingof the driv-. ing power and the stopping of the machine for the insertion of lease-threads or cords. So,also, when the follower has been traversed out to the outer end of the scroll and the final stopping notch 10 is presented in position to receive the projection 11 of the The groove-bottom sus the latter normally turned into a osition in which the,

follower, the followerdrops and, the tripfinger becomes operative to bring about the stoppage at the conclusion of the required total number of yards of threads passed through the machine.

In the case of warper-clocks not equipped with follower-locks it happens often that 'the follower is disengaged from the scrollsometimes are due to casual meddling by personspassing by or observing the operaresult through absent minded or tion of the mechanism. If, while the machine is in operation, with yarns passing therethrough,- the follower is disengaged from the scroll and not instantly restored to engagement with the same turn of groove or thread, at the identical point of such turn from which it was taken, the registering function of the clock will'be interfered with and the final stoppage will not correspond with the: passage of-the' correct number of yards of threads. Even though the follower is restored with comparative promptness to engagement with the same turn, the total,

length that will have passed through the machlne up to the .time of final stoppage through the entrance of the follower into the notch 1O will exceed the correct length by the number of yards that p'asbetween the instant of withdrawal of the follower and the instant of its reengagement. An excess of inconvenient amount occurs in cases in which the follower, after beingdisengaged, lands upon the rib between the turn last occupied by it and one of the adjoining turns, and remains .supported upon such rib fora while beforedropping back into the former turn; The exact length that has passedthrough the machine is not obvious upon inspection of the wound mass of threads, and can only be approximated by weighing such mass. Consequently, errors in length frequently pass unobserved for the time being; when suspected or known, the

extent thereof is not easy of ascertainment ed upon the intermediate rib, the total length passed through the machine up to the final stoppage may be greatly in excess or greatly below the required len 11. Just how much, can be ascertained on y by weighing what has passed through; the extent of the error cannot b determined merely from looking at the scroll and follower.

Referring now more particularly to the features of the illustrative embodiment of the invention:

The precise constructional form of the said features adopted in practice, and the precise arrangement, etc., of the parts, may vary more or less according to requirements, and will be governed by the construction and specific mode of operation, etc., of the warper-clock or of the warper itself, and by the views and requirements of build- I ers and users of the mechanism.

In the case of warper-clocks as usually constructed, the place of the shaft a in the said illustrative embodiment is taken by a simple stud projecting from the side-frame of-the warper, on which stud the hub 11 of the follower is adapted to turn independently in addition to sliding lengthwise of the stud. As a feature of the present invention I. connect or engage the'said hub with shaft 0: in a manner which While leaving the follower free to be moved along the shaft connects 0r engages the follower and shaft with each other in such manner as to cause them'to turn in unison. In this instance a longitudinal groove a is formed in the shaft (1, andthe inner end of a screw 11 applied to the hub 11 enters the said groove. Thereby in effect the follower is splined to the shaft. The latter is mounted in a bearing at a? in connection with sideframe 1 so as to be capable of turning around its longitudinal axis. The locking means by which the follower is locked from being rocked in the manner that is required in order to permit it to be disengaged from the scroll-groove is arranged for direct cooperation with the shaft 0.. In this instance it comprises essentially two members arranged and constructed for interengagemerit, one of them being a fixed member in.

connectionwith the machine-frame, and the other being attached to the shaft a. Here in the fixed mem'ber is a pin 7) rojecting from the bearing a in an outwar direction parallel with the shaft on, and the second member is a collar 0 fast upon the shaft a and formed with a peripheral notch a into which the said stud enters. So long as the notch c is occupied by the stud or pin 7) the shaft and consequently the follower are locked from turning so as to prevent thereby the follower from being raised far enough to disengage its projection 11 from the scroll-groove. In order to enable the follower to be unlocked by the attendant whenever necessary, I provide for disengaging the locking members b and c from out-ward for the purpose of effecting the una and collar 0 being suflicient tocarry the endwise movement from being unlocked 'in.the direction of its length. To this end the shaft a is mounted in the bearing a? with capacity for endwise movement, so that the attendant by taking hold of the same by hand may move it outward lengthwise and thereby effect the disengagement, the subsequent lengthwise movement of the shaft inward having the effect of caus'mg the locking members I) and c to become reengaged with each other. For the purpose of holding the members I) and a normally in interlocking engagement I combine a spring d with the shaft on in such manner that the said spring tends to move the shaft 80 lengthwise in an inward direction. Thus,

in this instance, the said spring is mounted upon a portion of the shaft which projects inwardly beyond the bearing the spring being confined between the end of the hearing a? and a washer e that is held in place upon the inner extremity of the shaft by means of a cotter-pin f. The spring yields to permit the shaft to be pulled lengthwise locking, and when the shaft is released the spring acts to pull the shaft lengthwise inward again to bring about the relocking. By wa of further precaution I provide means for locking the shaft a against endwise movement such as effects unlocking, until the parts have been positioned so as expressly to provide for the endwise movement of the shaft. In this instance, the outer end of the pin or stud b is formed with a book by being bent as at b, Fig. 3, so as to project back alongside the outer face of the collar 0 behind the rear wall of the notch 0. Through the engagement of this hook with the collar, at the outer side 1 of the latter, the required locking of the shaft against endwise movement outward is effected. The length of the hook is sufficient to allow the follower-projection 11 to enter into a lease-groove 10 and drop therein un- 1 til it rests upon the bottom of the roove without the turning movement of the shaft back wall of the notch into a position clear of the end of the hook I). Thereby I prevent the means for locking the shaft from through the dropping of the follower-projection into the lease-grooves from time to time prior to the final stoppage of the machine. When, however, the follower drops into the final stopping notch 10 at the outer end of the scroll, the turning movement of the shaft and collar are sufficient to carry the back wall of the notch into a position clear of the end of hook I). Thereby, the shaft is unlocked and rendered free to be moved endwise by taking hold of its enlar ed outer end an.

11 case for any reason, it should be de I in collar 0, thereby rendering the'shaft a as a result of the free to be moved endwise to disengage the collar from the pin, to render the shaft. free to turn, as required for the raising of the follower from the scroll-groove.

The drawings show the follower equipped with an'aliner 72. corresponding with that of the application aforesaid, forthe purpose of keeping the follower in correct working relations with the proper turn of the scrollspiral, and for preventing entry of the follower into the wrong turn of the scroll spiral in passing from a lease-groove in the scroll. Such aliner is a blade that is pivoted at i, at one end thereof, to the followerarm so that the aliner swings toward periphery of the scroll and under its edge enters the scroll-groove at a short distancefrom the follower-projection 11. By reason of the movable connection of the aliner with the follower, the aliner remains in the scrollgroove even though the followerbe lifted sufliciently to withdraw the rojection "11 from the groove. Consequent y, the return of the said projection to the particular turn of the scroll-groove from which it was lifted is ensured. The aliner prevents the follower from passing into the wrong turn of the groove in leavin a lease-groove, either follower being pushed sidewise through carelessness on the part of the attendant 1n inserting the stick by which the follower-projection is .held upraised in the lease-groove in first restarting after insertion of lease-threads or cords, or of the follower being jarred or shaken out of register with the turn, which it should enter. As will be understood, unlocking of the shaft or b longitudinal movement of the same, ren ering the said shaft andthe follower free to be turned around the axis of the said shaft, as for the purpose of lifting the follower projection 11*- clear of the scroll, provides for any resetting of the follower at the points in the direction of the length of the scroll that may b'enecessary in operation. That is to say, in particular, provision isthereby made for enablin the follower, after the passage of the preetermined length of threads through the machine and the stoppage due to the dropping of the projection 11 into the final stopping notch to be unlocked and moved back to the starting end of the scroll or to, any proper point in the direction of the length of the scroll, in order there to be reengaged in the scrollroove. 7

What is c aimed as the invention -is:--

1.' In a warper-clock or the like, in combination, a splrally-grooved rotating scroll,

a follower engaging with the groove or thread thereof, a shaft on which the follower is mounted with capacity to slide lengthwise thereof and with which it is engaged so that the 'two must turn in unison, and means for preventing the shaft and follower from turning so as to disengage the follower from the scroll, adapted to be locked and unlocked 10 relative movement of the interengaging e ements in the direction of the length of said shaft.

2. In a warper-clock or the like, incombination, a spirally-grooved rotating scroll, a v

follower engaging with the groove or thread thereof, an endwise movable shaft on which the follower is mounted with capacity to slide lengthwise thereof and with which it is engaged so that the two must turn in unison, and means for locking the shaft and follower to prevent disengagement of the follower from the scroll, adapted to be locked and unlocked by endwise movement of the shaft.

3. In a warper-clock or the like, in com bination, a spirally-grooved rotating scroll, a follower engaging with the groove or thread thereof, an endwise movable shaft on which the follower is mounted with capacity to slide lengthwise thereof and with which it is engaged so, that the two must turn in unison, a fixed'locking member, and

a locking member carried by the shaft, the latter member adapted to be placed by endwise movement of the shaft in and out of locking engagement with the fixedmember, and the locking engagement of said members serving to lock the shaft and follower to prevent disengagement of the follower from the scroll.

4. In a warper-clock or the like, in combination, a spirally-grooved rotating scroll, a follower engaglng with the groove or thread thereof an endwise movablevshaft on which the follower'is mounted with ca pacity to slide lengthwise thereof and with which it is engaged so that the two must turn in unison, means for locking the shaft and follower to prevent disengagement of the follower from the scroll, adapted to be locked and unlocked by endwise movement of the shaft, and means for normally keeping the shaft in the position endwise in 5. In, a warper-clock or the like, in combination, a spirally-grooved rotating scroll, a follower engaging with the groove or thread thereof, an endwise movable shafton which the follower is mounted with capacity toslide lenghwise thereof and with which it is engaged so that the two must turn in unison, means for locking the shaft and follower to prevent disengagement of the follower from the scroll, adapted to be locked and unlocked'by endwise movement of the shaft, and a spring normally keeping the i which it is locked from turning.

shaft in the position endwise, thereof in which the locklng means is operative.

6. In a warper-clock or the like, in combination, a spirally-grooved rotating scroll having a depression for indicating stoppage, a follower engaging with the groove or thread thereof and adapted to enter said depression, an endwise movable shaft on which the follower is mounted with capacity to slide lengthwise thereof and with which it is engaged so that the two must turn in unison, means for locking the shaft and follower to prevent disengagement of the follower from the scroll, adapted to be locked and unlocked by endwise movement of the shaft, and means for normally locking the shaft in looking position endwise, adapted to be unlocked by entry of the follower into the said depression of the scroll.

7 In a warper-clock or the like, in combination, a spirally-grooved rotating scroll, a follower engaging with the groove or thread thereof, an endwise movable shaft on which the follower is mounted with capacity to slide lengthwise thereof and with which it is engaged so that the two must turn in unison, and means for locking the shaft to prevent the follower from being disengaged from the scroll, comprising a fixed locking member and an interengaging locking member carried by the shaft.

8. In a warper-clock or the like, in combination, a spirally-grooved rotating scroll, a follower engaging with the groove or thread thereof, an endwise movable shaft on which the follower .is mounted with capacity to slide lengthwise thereof and with which it is engaged so that the two must turn in unison, and means for lockin the shaft to prevent the follower from ing disengaged from the scroll, comprising a fixed locking stud or pin, and a member on said shaft having a notch that is entered by the stud or pin.

a fixed stud or pin normally occupying thenotch of said collar and thereby locking the 1 shaft and followerto prevent disengagement of the follower from the scroll but permitting the followerto enter the depression, and means in connection with said stud or pin for normally locking the shaft from endwise movement arranged to unlock it for such movement 'upon entry of the follower into the depression.

10. In awarper-clock or the like, in combination, a spirally-grooved rotating scroll, a follower engaging with the groove or thread thereof, an endwise movable shaft on which the follower is mounted with capacit to slide lengthwise thereof, and with whic it is engagedso that the two must turn in unison, a notched collar and a co'acting stud or pin adapted to enter the notch of said collar, one of said elements fixed and the other attached to the shaft, adapted to coact to lock the shaft and follower against turning so as thereby to prevent disengage-- ment of the follower from the scroll, and a spring acting to keep the shaft in its normal position endwise with the collar and the stud or pin in locking engagement with each other. 7

In testimony whereof I aflixmy in presence of two witnesses.

ARSENE SAULNIER.

signature WitrgsseszF R ms. ANDALL, EILEN 0. Same.

v (bruncue m uorrectlon. It ishereb certified that in Letters Patent No. -1,437,8h5firanted December-5,

1922, upon 0 application of Arsene Saulnier, VValtham,

assachusetts, for an improvement in Clocks for lVarpi'ng Machines, errors appear in the prime specification w word termi I luring correction as follows:

Page 1,- line 18, for the misspelle read termed "line 22 for .enabing.read enabh' lines 53 and 54, for-c induction read intr otluctimi, and n9,

line 88, for the'word later read latter; and that the said Letters Patent should be read' with these corrections therein that ,thefsame may conform to the record of the case in the Patent Olfice. Slgriadand" sealed this 6th day of February, A. 1)., 1923,

KARL rename, 4am of Patents.

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