US2390018A - Traveler - Google Patents

Description

Nov. 27, 1945.

P. C. WENTWORTH TRAVELER Filed May 17, 1945 Patented Nov. 27, 1945 *UNITED STATES PATENT' OFFICE Applicatiosnchisr, ::35:10. 594,].94

In the spinning and twisting of yarns by the ring and traveler method the horns of the conventional traveler, whether regular circle or elliptic, are inturned at substantially right angles to a perpendicular passing through the center of the travelerbow. As a result, when the traveler is Operating on the ring. the pull of the yam sometimes causes the traveler to swivel relative to the ring and assume a position thereon, usually described as riding the ring lange."

When the traveler rides the ring flange, instead of the inner hom Contacting the inner ring flange' with a light guiding contact, the contact is transi'erred to that part of the traveler just above the bend which forms the hom. This soon causes a groove to be worn in the traveler above the bend which ;forms the horn. Also the traveler in its. swiveled position gradually wears away the ring fiange itself until a condition is reached where the ring flange has been worn so narrow that the traveler will no longer stay on the ring.

Moreover, under many spinning conditions the conventional traveler assumes a position on the ring, usually described as "back-tracking," in which the outer horn of the traveler contacts the outside web of the ring. When the traveler is "back-tracking," it has a double frictional contact with the ring. This greatly increases the frictional drag of the traveler, and causes a stronger pull and additional strain on the yarn and interferes with the evenness of the yarn being spun and the uniformity of twist. It also decreases the traveler life and is detrimental to the ring. i Accordingly, the main object oi my invention is to provide a traveler which will overcome these faults. A

Qther objects and advantages will appear as the description proceeds( I attain my objects b a radical re-design of the traveler whereby it will operate without substantial tendency to swivel on the ring and "ride the ring. flange" and will be largely prevented !rom "back-tracking" on the outside web of the ring. As a. consequence my traveler operates on the ring in a more nearly. balanced and in a gyroscopic position, thereby increasing the life of the traveler and ring, and producing yam ot uniorm evenness and twist.

In a traveler in accordance with my invention. the horns are turned inwardly and upwardly with respect to the bow at such an 'angle that in the operation of the traveler, the inner'horn thrusts upwardly !rom below, against the under surface of the inner ring flange at substantially its Juncture with the ring web. This not only reduces to the minimum the tendency of the traveler to swivel on the ring and "ride the ring flange" but 4 also largely prevents the outer hom of the traveler from contacting with-the outer surface of the ring web and back-tracking."

Another advantage resulting from my design of traveler is that in the Operating position of my traveler upon the ring more of its weight is distributed in the lower part of the traveler structure than is the case with the'conventional 'regular circle or elliptic traveler. As a consequ'ence, the traveler bow is lowered in relationship to the ring so that the center of gravity of the traveler more near-l coincides with the geometrical center or point of symmetry of the traveler.

In the accompanying drawing wherein I have shown a preferred embodiment of my invention.

Fig. 1 is a View showing my new traveler in Operating position upon a conventional ring', the ring being shown in cross section.

Fig. 2 is a perspective view of my traveler removed from the ring, and

Fig. 3 is an enlarged elevation of my traveler,

.particularly showing how its center of gravity has been lowered to substantially coincide with its geometrical center or point of symmetry.

My traveler comprises a bow III, inner and outer horns Il and 2 and curved portions !a and M connecting the bow and homs.

Preferably, although not necessarily, the bow is developed on the arc of a circle similar to that of a regular circle traveler. However, the bow might be lowered somewhat, as suggested in full lines in Fig. 8 of my Patent No. 1,990,358 or it might be elliptic, as 'suggested in my subsequent Patent No. 2,052,735, dated September 1, 1936.

The horns are turned inwardly and radial upwardly at an angle such that in the operation oi the traveler the inner hom ll contacts the inner flange !5 on the ring R at substantially its Juncture with the web IS of the ring, thereb largely preventing the outer hom |2 from "back-tracking" on the outside web of the ring.

This is illustrated in Fig. 1 from which it will be seen that my traveler operates on the ring in a gyroscopic position without substantial tendencyto swivel and "ride the ring flange" or "back track" on the outside web or the ring.

The horns of my traveler are preferably of the same length and are preferably inclined upwardly towards the bow at the same angle. Because o! such design. the traveler embodies more the geometrical center or point of symmetry S of the traveler, as indicated in Fig. 3.

My traveler is applied to the ring by a straight downward thrust over the' ring flange. In this action the horns yield outwardly slightly to pass the ring flange and then spring back to original position. x

Should it be desirable to further lower the center of gravity of the traveler, this may be accomplished by any of the methods disclosed in my aforesaid patents.

While I have shown and described a preferred embodiment of my invention I recogn ze that various minor modiflcations in design may be resorted to in order to adapt my traveler to particular conditions. All such changes are to be regarded as contemplated by my invention if within the spirit and scope of the appended claims.

I claim:

1. A traveler to operate on a. horizontal ring without substantial tendency to swivel and ride the ring flange or to back-track on the outside web of the ring, said traveler comprislng a bow, horns turned inwardly and radial upwardly at an angle to said bow, and curved portions connecting said bow and horns, the inner horn in the operation of the traveler thrustinz in an upward and outward direction against the under surface of the inner ring flange at substantlally its juncture with the ring web and thereby preventing the outer horn from contacting with the outside web of the ring.

2. The traveler of claim 1 in which the center of gravity and the point of symmetry of the traveler substantially coincide with each other.

3. The traveler ot claim l in which the horns are of substantially the same length and are upturned at substantlally the same angle to the circle structure.

4. A traveler to operate on a horizontal ring, comprising a curved bow and horns lowered and turned inwardly and radial upwardly at an angle to said bow and yieldable away from the ring flange when thrust downwardly thereover in the application of the traveler to the ring.

5. The traveler ot claim 4 wherein the horns are of equal length and are upturned at substantially the same angle to the circle structure.

PHILIP C. WENTWORTH.

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