US1857649A - Warper treadle - Google Patents

Description

May 10, 1932; H. A. LEONARD WARPER TREADLE Filed June 24, 1951 2 Sheets-Sheet l lnvenTor.-- HurryA. Leonard by kW An'ys.

May 10, 1932. H. A, LEONARD 1,857,649

- WARPER TREADLE Filed June 24, 1931 2 Sheets-Sheet 2 lnvenToT.

Harry A. Leonard byimdw im ATTys.

3215 board and depressing the treadle.

Patented May 1 0, 1932 BAYTIQNQQF HOPEDALE,MASSACHUSETTS,A:COBYOR-ATIONOF I WARPER Tenant-r:

application filed. June '24,

{Lhisunyention,relates to the starting treavd-le rnec n lsm ofga beam warpen -The;;bea-m warp'er of. the type to which this .inventionrelates is provided with automatic 7 ,5 #nechanism for stopping the warper upon the happeningpf various occurrences such as the :bteakin;g of;a "warp or the completion of-the mindingofaflpredetermined length of warp. fllhe mechanism for startingthe warper com- :tlle starting treadle having atre adle iboard extending-transversely of thewarper fat; the frontvnear thefloor so th-atthe operator maywstartithe ,warper at any position at the .frontpof theloom bystepping-on the treadle The high 'speedwarperswhichhave come intoruse handle beamsofilarge diameterand great difi- :culty :has ;been experienced in .providinga starting-treadle which extensible and contractible and so arranged ithatathestreadle board is always ZlILPOSltlOIl readilyzaccessibletothe foot of the operator and atithe same time, when contracted, posi- .tionfthertreadle board so thatthere will beno vinterference with the beam as .it is being dotted. or removedfrom and replaced in the -warper. V

=[lhese andother objects and features: of the )inventionwill appearmore fully from'the accompanying description and drawings and will: be particularly pointed out in the claims. 'A 'type-ofhighspeed beam warper in which .a preferred. form of the present invention is ,embodied is disclosed in the. patent to 'Trev'ett and Davis, :No. 1,794,345, granted iEebruary I 24,:1931, and in View of the disclosureiof this patent, it -is only necessary F445 'hereato illustrate and. describe those features :of La :beam warper with which the present iinventionis particularly concerned, together with: a preferred: form. of the invention.

50 tIn thadrawings:

will always be readily: zmaeeessible for operation by the foot of the operator even when the beam is full andsufficient to illustrate that at one-side.

@Fig, 1=is a; sidevelevation partially broken .1931. Serial .No."546;476.

away of the war-per with some-of the parts omitted.

Fig. 2 .isa-detailin vertical crosssection showing 1 the starting treadle contracted and in dotted lines extended. 4

Fig; 3 is a detailin plan and partially in horizontal cross section showing a portion of the treadle mechanism contracted and in dotted-lines extended. 7 1 1 "The beam warper shown comprises side frames l and 2; V Beaml supporting arms, the

left-hand one of which 3 is shown, are pivoted at 4 ingthe end frames. These armssuppor't gudgeon blocks 5 which slideron the arcuate tracks .6 -of the forwardly projectingtpob ti s o ithe a s 5111 these gudgeon-b are journalled-the-}trunnions 7 of the warp .beam 'having the cylindrical barrel-8 and the disk-like heads9, and 10. The warp beam is drivenby thefrictional engagementof a ro- .tated drumill engaging the sheet of warp 1-2 as it is wound onthebarrel8. Consequjently as the mass of warp increases the TiqNT I 4 many a. LE NA nfo H r-Em ts,.mAssAeHUsErrs, assmimjnfro .iiRAPEi 601 1 10- beamgudgeonst are forcedupwardly and forwardly on; the tracks 6,:the beam heads moving from; aposition suchas shown inyfull lines to a position such as shown in dotted ,lines 13. i f i When the beam is wound full and-is to be dofi'ed or removed fromthe warper, the forward ends of the arms 31 are j rnoved 1 down.- ward to a position such as shown in dotted lines at 14. This is done 'by'swinging the arms on the pivots .4 in the usual imanner. This'brings the full beam intoa position such as indicated in dottedlines at 15. V

i The starting treadle in which the inventlon is embodied comprises a pair; of similar extensible and contractible arms with the forward endsofthe frontsections of these arms connected by the treadle .boarol. "Since the .construction isthe same atboth sides,'it is A shaft 16 extends transversely between .the side frames 1 and'Q atthe bottomnear'the rear and forms the pivotfor the treadle, A mechanism connected-to and operated by .thisshaft,including the arm 17,actuates the :starting mech'anism 0f the warper when the shaft v16-is? rocked, clockwise, as viewed in Figs. 1 and 2, all in a familiar manner, and as shown, for example, in the above-mentioned patent. Each treadle arm rear section 18 is secured as by a set screw 19 to the pivotal shaft 16 and extends forwardly therefrom. These rear sections are connected at their forward ends by a rod 20 and each is also provided with an inwardly projecting stud 21 extending parallel to the rod 20 and well to the rear thereof.. Eachrear section is also arched at 22 to avoid interference with the tie rod 23. Each treadle arm front section 24'is longitudinally slotted at 25 sub stantially throughout its; length andv this slot fits over the rod 20 and the stud 21. At the forward ends the front sections 24 are connected by the treadle board 26. The treadle arms extend forward from thepivotal shaft l6 beneath the beam and just inside of the beam heads. 2

' The length of the treadle arm sections is such that when the arms are extended, the treadle board, as shown in full lines in Fig. 1, stands well at the front of the beam andin a position where the operator may readily placethe foot upon the treadle board and depress the treadle even when the beam is wound full. Thus at all times with the treadle arms extended the treadle board is readily accessible to the foot of the operator. But in this position it would be impossible to dofi' the beam because when the arms 3 are swung downward and the beam brought into position shown at 15, it would engage and interfere with the treadle. With this invention, when the beam is'to be dolfed, the treadle armsar-e contracted and brought into the position shown in dotted lines in Fig. 1 and in full lines inFigs. 2 and 3.- The treadle board and the front arm sections are then in a position where there is no interference with the beam during the doflin'g operation.

Each front arm section is preferably pro.- vided with a recess 27,- see Fig. 2, at the rear end ofthe slot 25 adapted to engage'b-eneath the stud 21 when the arm is extended and thus prevent unintentional contraction of the arm and a small leaf spring 28 secured at 29 to the rear end of this arm section cooperates with the'recess 27 to insure engagement of the recess 27 and the stud 21. A ledge or inward projection 30 on each'rear arm section is also preferably provided to support the rear end of the corresponding front section when the fl arms are contracted, as shown in Figs. .2 and 3.

v The treadle arms are readily extended and contracted. When in the extended operative position shown in Fig. 1, the operator raises the treadle board slightly with the foot to release the recesses 27 from the studs 21 and then shoves the treadle board rearward, contracting the arms and bringing the rear ends of the forward arm sections into engagement with the ledges 30. When the treadle arms are .to be extended from the contracted posiinounted at their rear ends,-

vided with a recess at therear There is thus presented a very simple and effective construction by means of which the starting treadle of the beam warper, when its arms are extended, is always readily accessible to the operators foot even when the beam is full and in which, when the arms are contracted, there is no dangerv of interference or damage to the machine during the dofling operation.

Having thus described the invention, what is claimed as. new,;and desired to be secured by Letters Patent, is: m V 7 1. A warper for winding a' headed beam comprising beam supporting arms 1 having their forward endsmovable downward for dofiing the beam, anda starting treadle having a pair of arms pivoted at their rear ends and extending forward beneath the beam and between the heads thereof and a treadle board connecting the forward ends of the arms in which each of said arms is extensible and contractible to enable the'operator when 5 the arms are extended and the beam is full readily to operate the treadle and to enable the beam to be doffed without'interfering with the treadle when the arms are 'contracted. I

2. A'starting treadle for abeam warper comprising two similar extensible and contractible arms pivotally mounted attheir rear ends and each composed of two relatively slidable sections and a treadle board connecting the forward endsof the front sections, the said arms when extended permitting ready access of the operators'foot to the treadle board even when the beam is full and when contracted permitting dofi'ing of the beam without; interference with the treadle. t

3. A starting treadle for a'beam warper comprising two similar arms pivotally each arm composed of a rear section anda front section,

a rod connecting the forward ends of the rear sections, a stud projecting from each rear section parallel with the rod, each front section longitudinally slotted to fit over the rod and adjacent stud and slide longitudinally of the rear section, and a treadle board connecting theforward ends of the front sections.

' at. A starting treadle fora beam warper having the construction defined in claim 3, in which each of said front sections isproend of its slot to engage the stud and prevent unintentional contraction of the arms when extended.

5. A starting treadle for a beam warper having the construction defined in claim 3, in

which each of said front sections is provided I with a recess at the rear end of. itsslot to enspring on the said section cooperating with the. recess to insure engagement of the recess and stud. V

6. A starting treadle for a beam warper comprising the construction defined in-claim 3, together with a projection on each rear section to support the rear end of the corresponding front section when the arms are contracted.

In'testimony whereof, I have signed my name to this specification.

HARRY A. LEONARD.

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