US660625A - Yarn spinning or twisting apparatus. - Google Patents

Description

No. 660,625. Patented Oct. 30. I900. G. 0. DRAPEB.

YARN SPINNING 0R TWISTING APPARATUS;-

(Application filed Kay 11, 1900.)

(No Model.)

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@NrrED STATES GEORGE O. DRAPER, OF HOPEDALE,

MASSACHUSETTS, ASSIGNOR TO THE DRAPER COMPANY, OF SAME PLACE AND PORTLAND, MAINE.

YARN SPINNING OR TWISTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 660,62 5, dated October 30. 1 900- ipplication filed May 11. 1900.

0 all whom, it may concern.-

Be it known that I, GEORGE O. DRAPER, a citizen of the United States,residing at Hope dale, in the county of Worcester and State of Massachusetts, have invented an Improvement in Yarn Spinning or Twisting Apparatus,ot' which the followingdescription, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

In other applications I have shown various forms of duplex traveler-supports comprising fixed and rotatable annular members, with both of which the traveler cooperates, such devices being int-ended for use in rotary-ring spinning or twisting apparatus, which has for its object the production of a traveler-support which will rotate with the traveler when the frame is running at high speed.

It is well known to those skilled in spinning or twisting apparatus that .when the frame is started up the traveler pulls with considerable force against both flanges of the well-known double-flanged ring, while after high speed is attained the action of centrifugal force on the traveler causes its outer hearing portion to run upon the upright external surface of the web of the ring. In my present invention I have utilized this action of the traveler in connection with a rotary-ring apparatus, the traveler being provided with a fixed and a rotatable race, initial operation of the frame causing the traveler to run on one race, and thereafter centrifugal force operates to effect engagement of the traveler with the other race.

My novel apparatus hereinafter to be described in one particular embodiment there of is constructed and arranged to be readily substituted for the ordinary rings now in very general use.

Figure 1 is an enlarged diametral section of one embodiment of my present invention applied to a spinningor twisting frame, only a portion of the ring-rail and spindle being shown, the traveler being shown in the position assumed when spinning is begun; and Fig. 2 is a similar view omitting the spindle Serial No. 16.288. (No model.)

and bobbin, but showing the position of the traveler relai ive to its so pport when the frame is running at speed.

The ring-rail R, spindle S, only a part of which is shown and which is of any wellknownhiglrspeed type, and the sheet-metal holder h, having resilient holding clips or lugs h, may be and are of any usual or wellknown construction, the yarn being lead from the usual deliveryrolls through a pigtail (not shown) through the traveler t to the bobbin B on the spindle. The traveler-support is herein shown as duplex and comprising concentric annular members (6 b, the former, which is herein shown as fixed, being held in place and prevented from rotation by the usual holderh, said memberahavingits top beveled at its interior, as at a", and with asubstantially upright annular external face a, which latter forms a traveler-race. The body I) of the movable member has at its upright end two oppositely-extended lateral flanges b b ,forming its head and constituting a traveler-race, the body having an external inverted frustoconical face b adjacent the beveled face a of the fixed member, said faces being in engagement when the member Z) is quiescent, as in Fig. 1. The member I) isrotatableand axially and radially movable within certain limits, and to prevent undue axial movement, due to the stress of the yarn and the action of the traveler, I have provided pins or studs a which are mountedin the fixed member and extend loosely into an annulargroove b in the foot of the rotatable member.

The traveler t is of wellknown form, having a substantially semicircular body with inturned ends t R, which embrace the flanged head of the member I).

When the frame is started, the parts being in the position shown, the traveler will engage both flanges b b of the movable mem her and will travel thereupon. As the speed increases, however, the friction of the traveler and the stress of the yarn will act to gradually rotate the member b, and at the same time said member is lifted, so that when high speed is attained the traveler and said member will apparently rotate in unison, the

clearance c, Fig. 2, between the adjacent faces of the fixed and movable members permitting slight radial movement of the latter, and the member I) Will seem to float out of contact with the fixed member. In the meantime the traveler will, by or through centrifugal action, assume the position shown in Fig. 2, one end, as 29, remaining in engagement with the flange 19 of the rotating ring I), while the portion t has moved away from the flange 19' into engagement with the fixed race a of the member a. This change in the position of the traveler from engagement with the rotating race to joint engagement with the fixed and rotating races serves to steady the operation and to largely counteract slight changes in the stress of the yarn, the cooperation with the fixed race appearing to act as a governor. When power is shut off, the parts will gradually and in reverse order assume the relative positions shown in Fig. 1.

My invention is not restricted to the arrangement and construction herein shown, for I have illustrated one practical embodiment of my invention Without attempting to .shoW the various changes or modifications thereof which could be made by one skilled in the art Without departing from the spirit and scope of my invention.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a spinning or twisting frame, a rotatable ring having a traveler-race, a traveler, and means to exert automatically a drag on the traveler when the frame is running at speed.

2. In a spinning or twisting frame, a rotatable ring having a traveler-race, a traveler, and a fixed race, the traveler being moved by centrifugal force into engagement with the fixed race when the frame is running at speed.

3. In a spinning or twisting frame, a rot-atable ring capable of radial and axial movement under the stress of the yarn, and provided with a traveler-race, means to limit radial movement of the ring, said means also having a traveler-race, and a traveler, the action of centrifugal force "effecting engagement of the traveler with the latter race when the frame is running at speed.

4:. The combination with a rotatable ring having outer and inner races for the traveler, of a surrounding fixed ring having a travelerrace adjacent the outer movable race.

5. The combination with a rotatable ring having a double flange for the traveler, of a fixed ring having a traveler-race, and the traveler, the latter being caused to engage the fixed race by or through centrifugal force.

. 6. The combination with concentric and relatively-movable annular members having inverted frusto-conical adjacent faces, each member having a traveler-race, of a traveler, said races being so located that the traveler is made to engage the race of one of the members by or through centrifugal action.

7. The combination with a rotatable ring capable of radial and axial movement, and a traveler in engagement with the ring, of fixed means for limiting radial and axial movement and provided with a bearing-surface onto' which the traveler is moved by centrif- 11 gal action.

8. The combination with a rotatable ring having a double-flanged head, and a traveler revoluble upon said head, of a fixed travelerrace located below and adjacent one of said flanges, to at times be engaged by the traveler.

9. In a spinning or twisting frame, a traveler-support provided with fixed and rotatable traveler-races, and a traveler, the latter cooperating with one of the races when running at low.speed and movable by or through centrifugal action into engagement also with the other race when running at high speed.

10. 'In a spinning or twisting frame, a rotatable ring capable of radial and axial move ment under the stress of the yarn, and provided with a traveler-race, a traveler revoluble thereon, and fixed means for limiting radial and axial movement of the said ring, upward movement of the latter when running at high speed increasing the clearance between it and the said means, the traveler at such time being brought by centrifugal action into engagement with said means.

11. The combination with a rotatable ring having oppositely-extended, lateral flanges to form a traveler-race, of a concentric fixed ring having a substantially vertical travelerrace adjacent and below one of the flanges, and a traveler adapted to travel initially in engagement with the flanges and thereafter to also engage the fixed race.

12. The combination with a rotatable ring, and a traveler cooperating therewith, of a fixed race intermittingly cooperating with the traveler.

In testimony whereof I have signed my name to this specificaton in the presence of two subscribing witnesses.

GEORGE O. DRAPER.

Witnesses:

E. D. BANGROFT, ERNEST W. W001).

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