US2413930A - Ring and traveler - Google Patents

Description

Jan. 7, 1947. I. ,l H, J. SMITH Y 2,413,930

:une AND TRAvBIR Filed Feb. I, 1945 2 Sheets-Sheet 1 Jan. 7, 1947. H. J. sMrrH 4196930 RING AND, TRAVELER Filed Feb. l, 1945 2 Sheets-Sheet 2 forms of the traveler, and

Patented Jan. 7, 19.47

UNITED RING AND TRAVELER Herbert J. smith, west Warwick, n. 1.,*ass1gnor to `U. S. Ring Traveler Company, Providence, R. I.,

a corporation of Rhode Island Application February 1, 1945, seriaiNo. 515,612

' 4 Claims. e l

This invention relates to improvements in ring and traveler structures and more specifically to the construction and arrangement of such parts so as to permit maximum size yarn packages and at the same time prevent unnecessary chattering of the traveler.

One of the main objects of this invention is to provide a three-point bearingfor a traveler and at the same time provide a cooperation ring providing clearances enabling maximum diameter of the yarn spool.

Another object of this invention is to maintain the traveler in a constant and unvariable circuit whereby thread tension is eliminated.`

Another object is to uniformly distribute vthe wear on the traveler regardless of the critical relative movements between the parts, this being accomplished by the provision of an intermediate bearing between the usual free end bearings, this intermediate bearing also substantially dampening vibrations present in such structure.

Other objects reside in results obtained by the specic contour of the ring and traveler and the relationship between these parts.

Reference will be had to the accompanying drawings, forming a part of this specification, and wherein like characters of reference designate corresponding parts throughout the several views,

in which:

Fig. 1 is an enlarged vertical section through the improved ring, with a traveler in position.

Fig. 2 is an enlarged fragmentary sectional view showing the conventional ring structure in dotted line with the outer spool diameters indicated.

Fig. 3 is a side view of one form of my traveler'. Fig-s. 4, 5, 6 and '7 are side views of modified Fig. 8 is a fragmentary vertical section showing a modified form of travelervand ring.

With'particular reference now to Fig. 1, there is illustrated the ring support I having the horizontal ring supporting shoulder 2, upon which rests the downwardly extending flange 3 of the ring 4, illustrated as of the cone type, such as shown in British Patent No. 9,166 of April 23. 1903. Generally this type of inwardly flaring or cone ring is well known in the art, the present improvements residing in details of construction and in the provision of Iclearances -that not only permit greater yarn spool diameters, but also facilitate the bearing contact to the end that vibration or chattering ofthe ring is eliminated and the ring life is greatly extended. In addition the thread tension is maintained substantially con- 2 stantregardless of speed -oi. travel or diameter of the spool. In Fig. 2 there is illustrated at A the contour-of the inner portion of the conventional cone ring. This portion of the ring'is essentially a restriction defining the maximum yarn spool diameter as` at B. Inasmuoh as the larger diameter of the spool permits the accumulation of a relatively large mass of yarn, any improvement permitting a larger spool diameter is of substantial importance. To this end the Apresent ring includes the outer flange 3, heretofore mentioned, the annular downwardly facing channel 4', the upwardly and inwardly tapering conical face 5, the vertical intermediate bearing face 6, and the relatively narrow top bearing face .1 reduced as at 8 to define the shoulder 9. The

top bearing face 1 and the vertical bearing face 6 are connected by the outwardly and upwardly inclined annular wall portion II), this structure providing suitable and desirable clearance for the yarn and permitting an increase in the yarn diameter to a point indicated by reference character B. Thus not only is a greater yarn spool possible but three bearing surfaces are provided for the traveler, namely the relatively narrow an'nular substantially flat upper surface 1, the vertical inner wall surface 6 and the conical wall surface 5, the vertical wall 6 and conical wall-5 merging at the annular edge Il while the wall 'I is spaced from the vertical wall 6 by the inclined annular wail surface portion I0.

The traveler includes the elongated inclined leg I5 which terminates its free lower end in the' hook-shaped horn IB, while its upper end is bent to provide the vertical intermediate portion Il. The upper end of the vertical intermediate portion I'I is curved `slightly to form the loop on eye I8, the latter being illustrated as off-set inwardly, with its thread bearing face I9 spaced slightly inward of the inner face I1 of the vertical intermediate portion I1. The traveler element after defining the loop I8 is bent in a horizpntal plane to provide bar 20 and terminates in the downwardly `inclined horn 2|. The horn 2| is spaced inward of the horn I6 and the leg 22 depending from the bar 22 to form the horn is at an angle substantially more acute than the angle of the inclined leg I5. The yarn is indi-A cated at b and passes through the loop or eye I8 as shown.

In Fig. 4 a. slightly modified structure is shown, i. e., the loop for the yarn is eliminated, the yarn travelling in the curve of the elbow C. The elongated leg l5, vertical intermediate portion I1 and arm bar 20 forming the three bearing attacco points contacting with the three bearing faces l. 8 and 1 of the ring illustrated in Figs. 1 and 2.

In Fig. the loop D for the yarn is provided, similar to the structure of Figs. l and 2, however, the horizontal bearing bar 2li is substantially elongated so that the horn 2| extends beyond the horn I8. Fig. 6 corresponds to the structure of Fig. 5 with the yarn loop D'ellminated. In Fig. 'l the loop E corresponding to the' yarn loop D is again provided. however, in this development straight horns I6' and 22 are illustrated. In all of these forms of the invention the traveler provides a three-point bearing. and the bearing faces of the arm and intermediate bearing may be slightly flattened as shown.

It will be obvious to one skilled in the art that the present. traveler in all of its modifications comprehends the use ofthe yarn drag and centrifugal force to secure an equally balanced travel on the ring, the latter being modied medially to provide for a substantially enlarged spool and at the same time to properly distribute the frictionall bearing forces corresponding to the inherent characteristics of the assembly. It will be noted by reference to Figs. 1 and 2 that the centrifugal force which primarily is active in the plane of the conical surface 5 and between this surface and the arm I5, is restricted by the verticalbearing surface 0 and the frictional engagement between this surface and the upright medial portion il of the traveler. In fact the i bearing faces 5, 6 and 1 of the ring and I5. il

pull of the yarn. the available centrifugal force. I

and the three relative frictional areas.- are so proportioned that the ring traveler is found to substantially float in its normal vertical position, thus greatly relieving the lubricating problems normally present in such assemblies. Further the tension of the yarn can be safely calculated and provision made for this tension by a. proper selection of traveler. In the prior art it was found to be objectionable to provide only two bearing faces as the great centrifugal force present was inclined to cause a wedging action between the inclined arm and horizontal bar as these parts are urged against the adjacent bearing faces of the ring. .In the present assembly any such tendency is eliminated by the use of the vertical medial traveler area acting upon the vertical ring face. Thus a three-point contact traveler is provided which utilizes all of the forces present in the most economical manner to permit heretofore unknown speed in travel without any defective results to the yarn.

It will be noted in the present assembly that the inclined or conical area "5 of the ring 4 is substantially greater than either the vertical medial bearing area i or the. top bearing area l on which the bar 2li of the traveler races. The

and 20 of thetraveler move substantially in engagement at alltimes. for the reasons heretofore set forth. Y

What I claim is:

1. In a spinning ring having a relatively wide conical area,'an upright portion, an outwardly inclined annular face and an upper `surface mergingwith said angular face at its inner marginal edge, a traveler for said ring having a leg portion for engagement with said conical area, a -A medial portion engaging said upright ring portion and a top bar for engaging said upper surface, said conical area. and leg being so constructed and arranged that centrifugal force will maintain the medial portion and top bar of said traveler in frictional contact substantially equivaient to the frictional contact between said leg and conical area.

2. In a spinning ring having a relatively wide conical area, an inwardly facing medial portion and an outwardly inclined annular upper face, atraveler for said ring having a leg portion for engaging said conical area, a medial portion engaging the medial portion of said spinning ring and a top bar for engaging the outwardly inclined portion of said ring, said ring and traveller being so constructed and arranged that centrifugal force will maintain the medial portion and top bar of the traveller in direct contact and with the frictional resistance substantially equivaient to the frictional resistance between said leg and conical area.

3. A traveler for use with a spinning ring comprising a medial vertical bearing portion for resisting lateral movement, a lower bearing area formed by an outwardly inclined leg, said leg terminating in a hook portion, and a top bearing area formed by a horizontal bar extending laterally of the medial vertical portion, said bearing portions being so constructed and arranged as to uniformly distribute the resultant friction and wear present during operative association of the traveler with its ring.

4. The substance of claim 3 characterized in that the outwardly inclined leg and horizontal bar are connected by an inwardly oiset strand loop.

HERBERT J. SMITH.

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