US1777579A - Locomotive driving box - Google Patents

Description

Oct. 7, 1930. M. H. RoBER'i's 'LOCOKOTIVE DRIVING BOX Filed Sept. 9, 192"! 2 Sheets-Sheet 1 I I. III

W A121\%NTOR I BY WQ YMW TTORNEYS M. H. ROBERTS LOCOBOTIVE DRIVING BOX Filed Sept. 9. 1927 2 Sheets-Sheet 2 Patented Oct. 7, 1930 UNITED. STATES PATENT OFFICE MONTAGUE n. ROBERTS, or nnennwoon, Na'wmm, assienonmo FRANKLIN nArL- WAY SUPPLY. com any, or NEW'Y0RK,Q1\T. Y., A COBBORA'IION or DELAWARE LOCOMOTIVE mm Box Y 1 Application filedseptember 9, 1927. Serial no. 218,427.

This invention relates to'locomotive driving boxes, particularly to a wear compensating wedgelconstruction therefor. V

Among the more important objects of the 5 invention are the elimination ofthe necessity for lubrication by periodic application of oil or grease on the relatively moving surfaces at the boxsides; the reduction of wear; the provision of a constructionwhereinsuch .10 little wear'as does occur will accumulate on areadily and inexpensively replaced part; the elimination of. abnormal Idownward thrusts on the wedge such, forexample, as are caused at times by a downwardmovement ,15 of the box inthe pedestal jaws combined with a starting thrust on the box from the driving rod and, a construction which is simple and rugged and which may be positively and effectively adjusted to compensate for wear; a 7

How theforegoing objects and advantages, together with others which will occur to those skilled in this art, are obtained will be clear from the following description considered in connection with drawings, in WhlCh-.. Fig. 1 is an end view of a locomotive driving box andsurrounding structure With my improvements appliedthereto, in "their preferredv form,

the figure being partly in section and partly in elevation and certain of the parts being omitted and broken away for the sakeof clarity;

construction taken substantially the same as the view of Fig. l, and liig. 3 is a sectional view taken as indicated by the line 33 in Fig. 1.

Referring now to Figs. 1 and 3, the referside frame of a locomotive, and B indicates movement between downwardly extending pedestal jaws 3 and 4. A pedestal binder 5 secures the jaws 3 and 4 together and retains the box between the jaws.

Shoe members 6 and 7 are provided for the j aws'8 and 4, respectively, and these members are provided with flanges 8 and 9, re

spectively, which embrace the jaws. The jaw the accompanying ence character A indicates a portion of the 3 and the member 6 are provided with coop- .erating surfaces which are oppositely inclined or angled-with respect to the vertical plane of th'ebox; The member'ti servesias the wear-compensating wedge element. A11

adjusting bolt 10 is threaded in the pedestal binder 5 and extends upwardly below, the wedge member 6. Its head 11 is seated in a recess 12 in the member 6 and is free to rotate' therein; 1 The bolt is provided with "a 'locknut 13. i v

A fioating plate 14 is interposed between the wedge and the box andis made slightly. shorter than-the vertical distance between the ,pedestal'binder 5 and the frame member-A in 1 order to provide the clearance indicated at generally, the provision of 15 The face of the plate 14 adjacent box ple, asBabbitt metalor the lubricating material known to the trade as Lubrite. This material may be spunor veneered o'nto these surfaces, 'or,as shown in the drawings, these and the material may be pressed thereintoto form the inserts 16. Y

The box" side of the shoe 7 and thesides of the flanges, 8 and 9 whichareadjacentthe, embracing boxflange's17 are also provided b with theanti-friction materialinserts.

v In service, when the boxmoves vertically Fig. 2 is a view of a modification of the between-the pedestal jaws, smallparticles of the" anti-friction material from the inserts;

will be spread all over' the relatively movthose surfaces. willalways have a relatively low coeflicient of friction.

j-Thisside ofthe wedge, therefore, has a relatively high coeflicient of friction" and will-resistany-tendency to move the wedge down wardly;

As the plate 14: is onlypermitted avery ,smallvertical movement practically allfof the rubbing incidentto vertical movement of thebox will take place between the side of "surfaces maybe provided with small recesses This towb e noted that the surface ofthel wedge 6 adjacent the pedestal jaw 3 a driving box which is mounted for vertical 7 1.; As an article of manufacture,

cumulate on this plate 14 which is an in-' expensively and easily renewed part of the structure. v

The modification of Fig. 2 is identical in construction with the form of Fig. 1, except that the floating plate 14 has been omitted and; the box-structure has been arranged so thatthe face of the wedge itself contacts with the box. In this case the rubbing will occur. between the wedge and the box and anywea'r which may occur will accumulate on the wedge.

Attention i'sfldirected to the factthatucertain of thesubject matter disclosed in the present caseis also disclosed in applicants earlier filed copending application Serial No. 202,419, filed June 29, 1927, which earlier application contains broad claims to this subject lriatter.

a wedge for locomotive driving boxes having its box side impregnated with anti-friction material. 2. As an article of manufacture, a'wedge m mber for locomotive driving-boxes, the box ,sideof-said wedge member havinga coefiicient of friction su-fliciently lowtoeliminate the necessity for periodic applications of oil or grease, and the other side of said wedge memher having a relatively high coefficient of friction; 7 I v V 3. As an article ofmanu-facture, a wear compensating wedge for locomotive driving boxes, said wedge hav ng inserts of" antifriction material in its box-side. I 4.- A driving box construction including a pedestal jaw, a wedge having flanges embrac-' ing the jaw, a dIIVHI bOX having flanges embracingthe wedge anges and anti-friction material carried by the box side of the wedge and by the side of the wedge flanges adjacent the box flanges. 5., A driving box construction including,

in combination, a pair of pedestal-jaws, a box .tion material on their box sides. 7 j v 6. -A driving box constructlon including, in

between the jaws, a shoe member between each side-of the boxjand; its respective jaw, said members carrying inserts of anti-fric- 1 eombinatiom'a pair of pedestal jaws, a box between the jaws, a shoe member between and one jaw and a floating between the wedge and the box and one jaw and a floating "anti-friction material on their bracing its respective jaw, a box having flanges embracing the flanges of the shoe members and anti-friction material carried by the box side of said shoe members and by the surfaces of the flanges of the shoe members adjacent the box flanges.

8. A driving box construction comprising, in combination, a pair of pedestal jaws, a box between the jaws, a wedgebetween the box and one and afloating plate interposed between the wedge and the box, said wedge carrying antirfriction material on its box side.

91' A driving box construction comprising,

incombination, a pair of pedestal jaws, a box between the jaws, a wedge between the box plate interposed box, said wedge and plate carrying anti-friction material on their sides toward the box. 10. A driving box construction comoris ing, in combination, a pair of pedestal jaws, a box betweenthe jaws, a wedge between the plate interposed between the wedge and the box, said wedge" and plate being impregnated with sides toward the box, together with means for adjusting said wedge.

11. A driving box construction comprising, in combination, a pair-"of pedestal jaws, a box mounted between the jaws for vertical movement, a wear compensating wedge between the box and one jaw and a floating plate interposed between the box and the wedge, said wedge carrying anti-friction material on its box side, together with meansfor adjusting said wedge.

12. As an article of manufacture, a wear compensating wedge for locomotive driving boxes, said wedge carrying on its box side lubricating material for reducing the coeflicient of friction to a point sufliciently low to eliminate. the necessity for periodic applica --tions of oil or grease.

whereof I have hereunto each side of the boxand its respective jaw,

said members carrying inserts of anti-friction material on their box sides, and one of saidmembers and its surfaces angled with jaw having cooperating lane of the box, together with means for adusting said last mentioned member to compensate for the wear.

7 7'. Adri'ving box construction including,

in combination, a pair of, pedestal jaws, ashoemember for each'jaw having flanges einrespect to the vertical

Images