US1953323A - Traveler - Google Patents

Description

April 3, 1934. p WENTWORTH 1,953,323

TRAVELER Filed March l2, 1952 Patented pr. 3, V1934 UNITED STATES PATENT GFFICE Application March 12,

2 Claims.

My present invention relates to certain improvements on some of the types of travelers as developed in commercial use under my previous Letters Patent. For example, my previous Patent No. 1,415,069, dated May 9, 1922, necessitated the slotting of a narrow strip of stock. In mill usage, such a traveler following in use one of the old type, under certain conditions developed a practical problem as to friction. The characteristic problem was that of the broader square point of my new travelers which when put on in substitution for an old style traveler took a certain length of time to adjust itself. This was due to the bearing of the outer corner on an unpolished part of the ring.

I have overcome these difculties as is explained in the following specification and as illustrated in the accompanying drawing, and have developed certain new advantages as will therein appear. In the drawing I have shown in Fig. l a view of the horns of a traveler in accordance with my invention on a fragment of ring with its web in section.

Fig. 2 an edge View of such a traveler.

Fig. 3 a side View of the same.

Figure 4 a central section on the line 4 4, Fig. 3.

Fig. 5 a diagrammatic study of the horn points of my traveler.

Referring to the drawing, I have shown at Figs. 2 to 4 an improved form of the traveler shown in my prior Patent No. 1,415,069, above referred to as illustrative of travelers of that type. These, on account of the slot Z in the bow B,

, necessitate a broader or more flattened wire.

Originally as shown in said patent, the horns were of the same width as the bows. This was satisfactory where my travelers were in original use, but as they necessarily in mill usage fre- 0 quently follow an old style traveler, i. e. are substituted for it on the ring, I found with square point travelers that the broader points of my original travelers swept with their corners a slightly different path than that of the old square d point.

, horn taper to bring the ultimate square point as at I-I to equal the old width of the old style traveler which it is supposed to parallel in the matter of weight.

In doing this I also attain a new relief at the bow base so that the friction on the fiange at any 1932, Serial No. 598,412

angle is negligible. My new travelers may, there-` fore, be substituted without adjustment and run following any old style traveler previously in` operation.

In producing a line of travelers of such parallel weights, it is only necessary to calculate the stock for the greater width so that deducting for the slot S in the bow (as in my previous patent) I also deduct for the horn taper h. I thus attain net weights of such travelers parallel with or equivalent to those of old uniform stock unmodified travelers of standard weights. It also gives a square point horn of the same sweep of its circle of traverse about the ring as in the old style horn. Thus, if a ring has been run in or polished by an old style traveler, my new traveler may follow without adjustment.

But apart from substitution, my present concept provides a novel horn of high efficiency. Its cut back is predicated on the tilt effect of the traveler on the flange F of the ring R as well as its frictional factor of arcuate sweep about the lower flange face and web.

Considered geometrically, the horns present theoretically elements of opposed isoceles triangles centered at the mid ange of the ring (Fig. 1). While this is not actually carried out in practice, the principle is effective.

The taper h is preferably slightly concaved or cut on a slight arc. While this is difficult to illustrate accurately, it will be understood that the concaving of the tapered facet h, from the corner of the horn back approximately to the base of the bow," gives a sweeping surface. This preferably is carried to or slightly over the region of the bow base which is an area of contact with the edge of the flange F of the ring.

The type or style of traveler may vary as indicated in my several prior patents and the treatment o-f the bows may vary to get parallel weights and points, as will be understood by those familiar with the production of travelers of various thousands of shapes, numbers, weights and sizes as commonly demanded and supplied to the trade.

What I therefore claim and desire to secure by Letters Patent isz- 1. A ring traveler comprising a bow having square point horns at the bow ends of less width than the bow, each horn merging into the bow at the bow base in an inclined surface disposed at an angle to the horn end.

2. A ring traveler comprising a bow having square point horns at the bow ends of less width than the bow, each horn merging into the bow at the bow base in a concaved surface disposed at an angle to the horn end.

PHILIP C. W'ENTWORTH.

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