US2427828A - Fabricated crosshead shoe - Google Patents

Description

p 3, 1947. A. H. WUNSCH 2,427,828

FABRICATED CROSSHEAD SHOE Filed May 12, 1944 2 Sheets-Sheet l INVE NTOR ALECK H. WUNSCH ATTORNEY Patented Sept. 23, 1947 FABRICATED CROSSHEAD SHOE Aleck H. Wunsch, Galesburg, 111., assignor to The Oxweld Railroad Service Company, a corporation of Delaware Application May 12, 1944, Serial No. 535,386

Claims.

This invention relates to crosshead assemblies for locomotives, and more particularly to a crosshead shoe of fabricated light-weight construction.

Crosshead shoes are generally of cast metal construction and because of the size of the crossheads varying with the different locomotives it is necessary that a complete stock of crosshead shoes of the different sizes be maintained in the locomotive repair shops. Also, cast shoes of steel are of considerable weight and often a steel crosshead shoe of light weight is desired.

It is an object of the present invention to provide a replacement crosshead shoe for locomotives which may be made from standard steel plate and round steel stock and which may replace a regular cast-metal crosshead shoe.

t is another object of the invention to pro vide a crosshead shoe which is very strong yet of light weight.

According to the present invention there is provided a crosshead shoe of fabricated construction which can readily replace a standard cast iron or steel crosshead shoe. This crosshead shoe is made from standard steel plate and round steel stock and includes a pair of laterally spaced sills or bearer plates having notches in their upper edges into which are fitted at longitudinally spaced locations therealong, transverse ri=bs of C-shape containing a bearing-material containing gib or plate. All of these parts are welded together so as to provide a rigid shoe. To give further rigidity to the construction, bracing plates are welded to several of the ribs and to the sills. Extending between and through the sills are inserts having openings therethrough to receive bolts which attach the shoe to the crosshead barrel. The inserts are preferably made of solid round stock and later drilled since the at.- taching bolts are not always of uniform size or spacing.

For er O jects and for a better understanding of the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, which, Fig. l is a side elevational View of a crosshead exemplifying the invention, portions of the rod end assembly being broken away to show one of the crosshead shoes in full elevation. Fig. 2 is an enlarged fragmentary crosssectional View taken on line 2-2 of Fig. 1. Fig. 3 is a top plan view of the erosshead shoe. Fig. 4 is a cross-sectional View, in elevation, of the crosshead shoe taken along the line 44 of Fig. 3. Fig. 5 is a bottom view of the crosshead shoe.

Referring to the drawings, there is shown a pair of crosshead shoes it detachably connected to a rod end assembly or barrel I I coupled to an engine rod 52. The rod end assembly II includes laterally spaced portions I3 having spaced holes l4 therethrough to receive crosshead shoe attaching bolts l5.

The erosshead shoe it includes a surface layer it composed of bearing metal carried in a bearing-material containing plate I! and adapted to slide over a guide it. The plate i! has bearingmaterial retaining lugs 25, between which molten bearing material is spread. The plate I! is supported by a plurality of longitudinally spaced ribs l9 and a pair of laterally spaced sills 2|. tending between and through the sills 2!, are inserts 22 of round stock each having an opening 23 adapted to receive an attaching bolt IS.

The sills 2i preferably have notches 25 for receiving the ribs so that the ribs lie in the sills with their upper edges 25 flush with upper edges 26 of the sills 28. The ribs are preferably of C-shape and include two leg portions 21 and an intermediate portion 28 which has the upper edge 25.

The plate I! containing the bearing metal layer It is fitted into the C-shaped ribs so that its bottom portion 3! bears upon and is secured to both the upper edge 25 of the ribs l9 and the upper edges 2% of the sills 2 I. Welds 32 extending throughout the length of each sill, unite the bottom portion of the plate I! to the sills and welds 33 secure the bottom portion 3! to each of the ribs. Welds 34 also extend upwardly along the 7 sides of the plate H, to secure side portions 35 of plate H to leg portions 2? of the ribs l9.

To give further rigidity to the construction, bracing plates 36 are disposed along bottom edges 31 of the ribs, one plate 38 at each side of the structure and coextensive with outer faces 38 of the sills 2|. These bracing plates 36 are welded at 39 to the included ribs and to an adjacent sill, as indicated at 4!. The plates 36 may bear upon the portions I3 of the rod end assembly II when the crosshead shoes H] are assembled therewith.

The inserts 22 are preferably composed of solid metal and later drilled to provide an opening 23 of the proper size and position to contain an attaching bolt 15. In each of the sills and in order to receive the ends of inserts 22, there is provided a tapered opening 12 through which the end of the insert piece is extended and welded by finally filling the tapered opening 42 with welding material 43.

such changes shall be within the spirit and scope of the present invention as defined by the appended claims.

I claim:

1. A crosshead shoe of fabricated light-weight construction comprising a pair of sills, a plurality of ribs welded to the sills in longitudinally spaced locations along the length thereof, a, bearingmaterial containing plate welded to the ribs, and a plurality of inserts extending between and welded to the sills, each of said inserts having an opening to receive a bolt which serves to attach the crosshead shoe to an engine rod end assembly.

2. A crosshead shoe of fabricated light-weight construction comprising a pair of laterally spaced sills, a plurality of ribs respectively secured to the sill pieces at longitudinally spaced locations therealong, a shoe plate secured to the ribs, bracing plates coextensive with and respectively adjacent the sills secured to several of the ribs, and means associated with the sills adapted for ready attachment of the crosshead shoe to an engine rod end assembly.

3. A crosshead shoe of fabricated light-weight construction comprising a pair of laterally spaced sills having spaced openings, a plurality of ribs secured to the sills at longitudinally spaced locations therealong, a shoe plate for containing bearthrough the openings of the sill pieces and each of which has a hole running axially therethrough to receive an attaching bolt of an engine rod end assembly.

4. A crosshead shoe of fabricated construction comprising laterally spaced sills, a plurality of ribs of C-shape, each of which has leg and intermediate portions, said ribs being disposed with their intermediate portions on said sills with leg portions of the ribs extending upwardly, and a bearing-material containing shoe plate having a cross section of C-shape cradled in the C-shaped ribs and bearing upon and secured to both the ribs and the sills.

5. In combination, an engine rod, a rod end assembly provided on the engine rod and having laterally spaced portions, a crosshead shoe detachably coupled to the rod end assembly, said spaced portions of the rod end assembly having aligned openings, said crosshead shoe being of fabricated construction and including depending and laterally spaced sills, and inserts extending between and through the sills, each of said inserts having an opening therethrough, and bolts extending through the openings of both the rod end assembly spaced portions and the inserts for readily attaching the crosshead shoe to the engine rod assembly.

ALECK H. WUNSCI-L REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 530,320 Begtrup Dec. 4, 1894 1,202,866 Markel Oct. 31, 1916 1,658,019 Luscombe Jan. 31, 1928 2,215,504 Hoke Sept. 24, 1940 2,270,205 Ellis Jan. 13, 1942

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