US2968908A - Traveler with facing shell of wear resistant material - Google Patents

Description

Jan. 24, 1961 L. H. MORIN 2,968,908

TRAVELER wrm FACING SHELL OF WEAR RESISTANT MATERIAL Filed July 25, 1959 a z 1 E V 24 \A A? 25 5 25 25 /a ,1 INVENTOR. Lou/s H. Mam

United States atent TRAVELER WITH FACING SHELL OF WEAR RESISTANT MATERIAL Louis H. Morin, Bronx, N.Y., assignor to Coats & Clark Inc., New York, N.Y., a corporation of Delaware Filed July 23, 1959, Ser. No. 828,990

10 Claims. (Cl. 57-125) This invention relates to travelers formed from molded plastic material employing on the undersurface of the large hook end portion of the traveler a facing shell of wear resistant material. More particularly, the invention deals with a structure of the character described, wherein the traveler is formed with a recess of predetermined cross-sectional contour on the undersurface of the large hook end of the traveler, into which recess the wear shell, element or member is snugly arranged.

Still further, the invention deals with a structure of the character described, wherein means is provided for retaining the shell against displacement from the recessed portion of the traveler.

The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed and, in which, the separate parts are designated by suitable reference characters in each of the views and, in which:

Fig. l is a side view of a part of the large hook end portion of a traveler on an enlarged scale and illustrating one of my improved wear resistant shells thereon, with part of the construction broken away and in section.

Fig. 2 is an enlarged section on the line 2-2 of Fig. 1.

Fig. 3 is a diagrammatic perspective view of one end portion of a wear resistant shell detached.

Fig. 4 is a view, similar to Fig. 2, showing a modification; and

Fig. 5 is an outside view of the upper end portion of one wall of the shell shown in Fig. 4, detached.

In view of the fact that travelers are generally known in the art, to simplify the illustration in the accompanying drawing, the large hook end portion only of the traveler is shown. The traveler is molded from suitable plastic material such, for example, as nylon and, in the molding operation, a recess is formed on the inner surface 11 and side surfaces 12, as clearly shown at 13 in Fig. 2 of the drawing. The recess 13, arranged in the side walls 12, terminates at upper ends in inwardly extending grooves or indentures 14, having surfaces 15 arranged at right angles to the sides 12 and surfaces 16 arranged at an angle thereto, thus fashioning the grooves 14 to substantially triangular cross-sectional contour.

At 17 is illustrated one of my improved wear resistant members or elements in the form of a substantially U-shaped shell, the thickness of which corresponds to the depth of the recess 13, so that, when the shell 17 is in operative position, as shown in Fig. 2 of the drawing, outer surfaces of the shell will be flush with the surface 11, as well as the side surfaces 12.

The ends of the side walls 18 of the shell 17 terminate in inwardly extending flanges 19 which are adapted to enter the grooves 14, as clearly noted in Fig. 2 of the drawing. it will also appear, from a consideration of Fig. l of the drawing, that the ends of the shell 17 fit snugly within the walls 26 of the recess 13, thus definitely positioning the shell 37 on the hook end portion.

Patented Jan. 24, 1961 The member, element or shell 17 can be composed of any suitable wear resistant metal and, with the structure shown in Figs. 1 to 3, inclusive, it is preferred that the metal will have spring properties, so as to enable the side walls 18 to be flexed apart in mounting the shell in the recess 13. The shell will be so tensioned as to urge the walls 18 firmly upon the walls of the recess 13, with the flanges 19 fitting freely, but snugly, in the grooves 14. When assembled, it will appear that the shell is fixedly retained against movement and/ or displacement from the hook end 10. However, if desired, the shell can be forcibly removed for replacement.

In Figs. 4 and 5 of the drawing, I have shown a modilied form of construction, wherein the shell 17 or the side walls 18' thereof, instead of terminating in the flanges 19, include, adjacent their free ends and at corner portions thereof, indentures, countersunk sections or areas Zl, note Fig. 5 of the drawing. With this construction, it will be apparent that the recess 13 formed in the hook end 10', instead of terminating in the grooves 14, will have two apertures formed therein, one of which is indicated at 22 in Fig. 4 of the drawing, and each of these apertures will terminate at the recessed sides of the traveler in bevelled wall portions 23 to accommodate the countersunk portions 21 of the shell 17, as clearly illustrated in Fig. 4 of the drawing.

With this construction, after the shell 17 is positioned on the traveler in the recess 13', rivet pins are arranged in the apertures 22, one of these pins being shown at 24 in Fig. 4 of the drawing, and the ends of the pins are headed-over, as seen at 25, into the countersunk portions 21, so as to maintain the heads flush with the outer surfaces of the walls 18.

With the structure shown in Figs. 4 and 5 of the drawing, the wear resistant member, element or shell 1! can be formed of materials which do not necessarily have spring properties and are otherwise secured in position by the rivets employed, the shells being shaped to snugly fit in the recess 13'.

With both forms of construction shown, it will be apparent that a minimum amount of the material of the traveler is removed for reception of the wear resistant element, thereby maintaining the desired strength in the hook end portion of the traveler.

It will also be apparent that the U-shaped casing aids in reinforcing the traveler and this is particularly true with the structure shown in Fig. 4 of the drawing, where the side walls of the shell are securely bound and held upon the sides of the traveler by the rivet pins employed.

It will be understood that the angular surfaces is of the grooves 14 aid in positioning the flanges 19 in the grooves 14 in assemblage of the shell 17 with the traveler.

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

1. A molded plastic traveler having a large hook end portion and a recess on the inner surface and side walls of said large hook end portion, a U-shaped resilient element of wear resistant material fitting snugly within said recess, and interengaging means between said element and traveler for retaining the element against displacement from said traveler.

2. A molded plastic traveler having a large hook end portion and a recess on the inner surface and side walls of said large hook end portion, a metal U-shaped element of wear resistant material fitting snugly within said recess, interengaging means between said element and traveler for retaining the element against displacement from said traveler, and the thickness of said element throughout the major portion thereof being equal to the depth of the recess in the traveler to maintain outer surfaces of the element and traveler in common alinernent.

3. A molded plastic traveler having a large hook end portion and a recess on the inner surface and side walls of said large hook end portion, a U-shaped element of wear resistant material fitting snugly within said recess, interengaging means between said element and traveler for retaining the element against displacement from said traveler, and the interengaging means of said element comprising inwardly extending flanges at ends of side walls of the element extending into grooves in said traveler.

4. A molded plastic traveler having a large hook end portion and a recess on the inner surface and side walls of said large hook end portion, a metal U-shaped resilient element of wear resistant material fitting snugly within said recess, interengaging means between said element and traveler for retaining the element against displacement from said traveler, and interengaging means of said element comprising indentures on side walls of the element engaging correspondingly formed portions in the traveler.

5. A molded plastic traveler having a large hook end portion and a recess on the inner surface and side walls of said large hook end portion, a U-shaped element of wear resistant material fitting snugly within said recess, interengaging means between said element and traveler for retaining the element against displacement from said traveler, interengaging means of said element comprising indentures on side walls of the element engaging correspondingly formed portions in the traveler, and rivets mounted in the traveler and having headed ends seating in the indentures of the side walls of said element.

6. A molded plastic traveler having a large hook end portion, said large hook end portion of which includes on the inner rounded surface of said hook end portion a recess extending onto side walls of the traveler, the walls of the recess including indentures, a thin walled Wear resistant element fitting snugly in the recess of the traveler, and said element including inwardly extending portions arranged in said indentures in retaining the element against displacement from the traveler.

7. A molded plastic traveler having a large hook end portion, said large hook end portion of which includes on the inner rounded surface of said hook end portion a recess extending onto side walls of the traveler, the Walls of the recess including indentures, a thin walled wear resistant element of metal fitting snugly in the recess of the traveler, said element including inwardly extending portions arranged in said indentures in retaining the element against displacement from the traveler, said indentures being in the form of grooves substantially triangular in cross-sectional form, and the portions of said element comprising flanges arranged in said grooves.

8. A molded plastic traveler having a large hook end portion, said large hook end portion of which includes on the inner rounded surface of said hook end portion a recess extending onto side Walls of the traveler, the walls of the recess including indentures, a thin walled wear resistant element fitting snugly in the recess of the traveler, said element including inwardly extending portions arranged in said indentures in retaining the element against displacement from the traveler, and the portions of said element comprising countersinks extending into said indentures.

9. A molded plastic traveler having a large hook end portion, said large hook end portion of Which includes on the inner rounded surface of said hook end portion a recess extending onto side walls of the traveler, the walls of the recess including indentures, a thin walled wear resistant element fitting snugly in the recess of the traveler, said element including inwardly extending portions arranged in said indentures in retaining the element against displacement from the traveler, the portions of said element comprising countersinks extending into said indentures, and rivets mounted in the traveler and including headed ends arranged in said countersinks.

10. A molded plastic traveler having a large hook end portion, said large hook end portion of which includes on the inner rounded surface of said hook end portion a recess extending onto side walls of the traveler, the walls of the recess including indentures, a thin walled Wear resistant element of met-a1 fitting snugly in the recess of the traveler, said element including inwardly extending portions arranged in said indentures in retaining the element against displacement from the traveler, said recess extending longitudinally of the inner curved surface of the traveler, and the terminal end of the recess on side walls of the traveler substantially conforming to the contour of said inner curved surface of the traveler.

References Cited in the file of this patent UNITED STATES PATENTS 2,683,346 Pieper July 13, 1954

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