US1103329A

US1103329A - Roving-stop for spinning-frames.

Info

Publication number: US1103329A
Application number: US80463313A
Authority: US
Inventors: Edward J Vales
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-12-04
Filing date: 1913-12-04
Publication date: 1914-07-14
Anticipated expiration: 1931-07-14

Description

E. J. VALES.

ROVING STOP PoR SPINNING FRAMES.

Patented July 14,1914,

j STATES EDWARD J. VALES, O AUGUSTA, GEORGIA.

BOVING-STOP FOR incassa.

Specification of Letters Patent.

SPINNING-FRAMES.

Patented July 14, 1914.

Application led December i913. Serial No. 804,633.

To @ZZ whom it may concern.'

Be it known that ll, EDWARD J.' VALns, a citizen of the United States, and a'reisident of the city of Augusta, in the county of Richmond, State of Georgia, have invented cert-ain new and useful lmprovements in Roving-Stops for Spinning-Frames, of which the following is a specification.

This invention relates broadly to the spinning branch of the textile arts and more particularly to roving stops for spinning frames.

The principal object of this invention is to provide a mechanism for stopping the roving from feeding to the feed rolls when the thread is broken.

A further object of this invention is to provide a stop for the roving prior t-o its reaching the feeding rolls, which stop is automatically carried into position by the movement of the roving when the thread is broken between the front feeding roll and the bobbin.

A still further object of this invention is` Figure l is a detail elevational view of a part of a roll stand showing the roving stop in normal position. Fig. 2 is an enlarged view of the plunger head holding the roving stop in the trumpet guide. llig. 3 is a detail view of the support for the roving stop device. i

The entire spinning-machine is not illustrated for the reason that this device is intended for use on the ordinary well known type of spinning frame and only such parts as directly coperate with the operation of this device have been illust-rated, and these parts are only illustrated diagrammatically.

ln the operation of a spinning frame or machine, the thread frequently breaks between the front feed rolls and the spindle or bobbin. Heretofore it has been t-he practice to provide a scavenging, or waste, roll beneath the front feed roll to catch the loose end of the roving, in case the thread breaks, and Wind it upon the scavenging roll to prevent the loose end from catching in other portions of the machinery. This type of y`mechanism is wasteful of the stock and requires considerable .attention in that the scavenging roll must be frequently cleared yor'cleanedl To obviate the difficulties attendant upon this type of mechanism, a :number of. roving stop devices have been devised to prevent the feeding of the roving "to, or through, the feed rolls when the thread is broken. 'Many complicated clamps, special guides, and special types of feed mechanism have been devised. Most of these devices ar'e intricate and are delicate in adjustment and operation, and it is well recognized that delicate mechanisms are usually unsatisifactory in a textile mill, because they soon fbecome clogged in their action by loose pieces of yarn, waste, etc. i j The inventionlwhich will hereinafter be described in detail, comprises simply a grcughened or knurled plunger stop which drops against the moving roving when the thread is broken, and the movement of the roving `itself wedges thisy plunger head against the trumpet guide `so tightly that the resistance of the roving passing through the trumpet guide is greater than the feeding friction of the feed rolls, consequently the roving is held stationary between the f feed rolls and does not feed. yThis mechanism is simple' in construction, positive in its operation and obviates the delicate parts of special clampsand complicated stops.

`Referring now to the drawings and particularly to Fig. l, the' roll stand is shown as including a main frame` l,` which carries a front feed roll 2, and also carries roll slides t, upon which a middle roll5 anda back roll 6 are mounted. TheV top'rolls 7 coperatewith the feed rolls and are maintained in position by cap bars 8. Saddles 9 and 10 rest against the upper portion of the-bearings of the top rollsand distribute the pressure ofthe weight (not shown) which hangs on thev weight lever l11 thatk is koperatively connected by a link l2 to the saddle y9. A roving rod, or bar 14, carries trumpet guides 15 (only one beingillustrated) and is constructed to have a slight traverse movement. Thek parts hereinbefore described in detail by reference' to the drawings, are all common in the art and are merely referred to as illusitrativeiof generaltypes of mechanismsof the character' new used in spinning machines. trative, and any other type of such mechanism may beus'ed in co-nnection lwith appl-istop comprising a U-shaped support .16,

17, or other convenient type of securing device. This `Ilvl-:shaped .support 'carries a hubl 18', which is pivotally :mounted upon :a `screw bolt 19 which passes ythrough one of the og' enings :20V fin the ilil-shaped `support and tfereby pivots the hub 18 between the' side plates fof the support 16. The hub .18 carries a feeler linger 21 which is preferably tapered from the Vhub outwardly toward `the :point which iisformedinto a hookerk guide r22fthat is adaptedv to':gen-tl` rest upon the thread 24 afterat Aleaves the firent rotl 2 and before it reaches the pig tail thread guide l(not shown). The reason, or preference, for

' tapering the feeler :finger is to permit it to rest ii-ghtly upon .thethfread 24 land to distribute most 1of the weigh-t near the hub 18.

n This hub. 18 also. carries .an upwardly projectingrod 25,011 the iupper end `of which is mounted .a rougi-i-leI-red, or` knurled, roving stop plunger 26.y This plunger 'may be formed of hardened steel and is preferably coneesh'aped, :and is provided with fsmall points, V'or knurls, vor spines 27. The U- shaped support 1&6 is provided with ra plurality of yopenings 20., previously referred to,`

(or itmay be provided with a slot) to permit the vertical' adjustment of the screw bolt 19 in order to admit of the device to be adjusted in such mannerthat the point of the plunger 'stop v26 will striire directly inlto the trumpet guide Whent'he hub 18 is rotated in a forward directionas the feeier finger 21 is x,drop ed by thebreaking of the thread. Since itt e `slrpport 16 carrying Athe roving stop device, is mounted on the roving rod `or ba-r 141, the roving-stop mechanism is traversed bythe roving rod 14 and lthe trumpets 15, therebymaintai'ning the correct position for loperation at all times.

in 'operation of the device the i thread 211 passes under 'hooker-'guide v22 :on Athe fee'ler finger 21 `and normally holds this fingern an elevated i-pos'iti/en.r When the threadV bre-airs the feeiler finger drops to dotted .line position shown in Fig. 1, and the lsnurled Yf'hiead ."216 fairs-against the moving' rofvtnigzs that is beinfgdrawn through the trumpet .guide 115 by the feed rolls; 'The lcontinue-d movement of the Aroving causes the spines 27,1011- roughened portions `of the -plunger i265', to eng-age 'with the roving, thus carrying the vplunger with the roving until the plunger iis 'drawn so tightly in the openingfof the trumpetiglu'ide 'that the rovingcan no longer be drawn forward by 'the feed rolls, 'thereby preventing the -lloose end of the broken thread from being'fed forward by This mechanism is merely illus-` the feed rolls. Immediately as the operator ties the ends o'f 'the "thread together, starts K the sp-inning, opera-tion, and raises thehook Cants invention, which consists of a roving or guide 22 to place it in position over the Y thread, Hthe knurled plunger 26 is Withdrawn preferably formed of sheet metal, and at' tached to the roving bar 14: by a stub screw =y 'from within the trumpet ,guide 15 and immediately'the roving 28 will again be drawn forward by the feed rolls and the lspinning frame will operate normally. Y y

Having thus described my invention, what I desire to claim iszl1. A roving stop for spinning machines roving bar, .a hub, a Isupport wherein saidV hub is pivotally mounted, said support v being vattac'hedto the 'roving :fb-ar, a feeler ingercarried 'by said hub, a hoolr on said feeler (finger `adaptedto engage vthe thread and support the feeler finger thereon, an upwardly extending rod also carried by said hub, fand va plunger stop carried by said rod, `said plunger stop being Icone-shaped,

`the axis of said vcone being substantiallytan-` gential to la circle passing through said trumpet gui-de whose center is a pivotal point` for said hub, the vconical portion of said plunger lstop being lToughened kto provide a frictional surface adapted to engage and stop the rovingwhen the feeler finger is dropped by Jche breaking of thethread.

roving stop for spinning mac'l'iines` and the like, comprising in combination, a

roll stand, feed rolls carried by said roll standfvrand adapted 'to feed a strand of rov-v ing, 4a roving bar, a trumpet guide mounted on said roving bar, feeler finger, a hook en the 'end :of said feeler finger 'in engage-- ment with the thread vas" it leaves thev feed ll() l vided with la roughened surface land-operrolls, a conically shaped plunger vhead proatively connected with said feeler finger, the par-ts being constructed andfarranged to drop the conical plunger into the trumpet guide when the thread is broken. Y

3. A roving stop for spinning machines and the like, comprising in combination,

feed vrolls adapted to draw roving from al y suitable supply and feed the roving forward as required, a funnel shaped yguide through which the strand of roving passes prior to reaching' :the feed rolls, a feeler finger in engagement with the strand after it leaves the feed reills, and a conical shaped plunger operatively connectedvwith the feeler finger to drop the -point yof said conical shaped plunger into the funnel shaped guide when the `strand lin lengagement with the feeler y finger is broken, said conical shaped plunger being provided with a roughened su-r-` face to engage the roving when dropped as aforesaid.

4. A roving stop for spinning machines and the like, comprising in combination, a funnel shaped roving guide for guiding a strand of roving, a eeler iinger adapted to engage said strand, and a conical shaped plunger operatively connected with said feeler finger and adapted to be dropped into said funnel shaped guide when the strand is broken, said plunger being provided with a roughened surface to engage said roving and clamp the same within said guide.

5. A roving stop for spinning machines and the like, comprising in combination, a roving guide having an opening, a feeler iinger adapted to engage the strand of roving, a conical shaped plunger having a roughened surface, and means for drawing the roving through said guide, the said parts being constructed and arranged to dropthe point of the conical plunger into the opening in the roving guide when the strand is broken and to draw the plunger tightly against the guide to stop the roving by the ytension on Jthe roving.

6. In combination, a funnel shaped rovingguide, a conical shaped plunger roving stop, said plunger stop being provided with a roughened surface, means for drawing a strand of roving through said funnel shaped guide, and means for dropping the conical plunger stop against the moving roving within said guide to engage the roving and draw the plunger forward to wedge the roving between said conical plunger stop and the walls of said guide to stop the feed of the roving.

EDWARD J. VALES. Witnesses:

EARLE L. PARMELEE, M. B. NICHOLS.

Copies of this patent :nay be obtained for five cents each, by addressing the Commissioner of Tatents, Washington, D. C.