US1410516A - Cab truck - Google Patents

Description

A. SANDMAN.l

CAR TRUCK.

, APPLICATION FILED JULY 20| 1920.

Patented Mar. 21, 1922.

2 SHEETS-SHEET 2.'

i UNITED STATES AUGUST G. SANDMAN, OF BALTIMORE, MARYLAND.

CAR TRUCK.

i 1,41o,51e.

Specification of Letters Patent.

Patented Mar. 21, 1922.

Application yfiled July 20,1920. Serial No. 397,777.

To all whom t may concern Be it known that I, AUGUST G. SANDMAN, a citizen of the United States, residing at Baltimore, and State of Maryland, have invented certain new and` useful Improvements in Car Trucks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to Arailway cars and moreparticularly to car trucks therefor, and has for its principal object the prevention of destructive wear upon the car truck pedestal jaws and upon the journal boxes'associated therewith. The said parts are subject to rapid and destructive wear caused by the constant movement of the journal boxes and equalizer bars with respect to the said pedestal jaws. To this end the main feature of my invention, generally stated, Acomprises wear plates adapted to be applied to each pedestal jaw in a lsimple and, inexpensive manner, said wear plate being formedr so as to interpose a Wear resisting portion between the adjacent pedestal jaw and each moving part so asto protect the jaw from all wear. I also contemplate providing thejournal boxes with wear plates to aord additional protection to the same Iand at the same time provide a smoothk surface to cooperatewith the wear plates on the pedestal jaws. j

To these and other ends the invention comprises the various elements and combinations of elements hereinafter described the novel features whereof are set forth in the claims.

j -In the drawings,-. l

Figure l is .a View half in side elevation and halt` in vertical section, the section being taken on line 1-1 of Fig. 2, of a passenger truck pedestal with the associated parts. Fig. 2 is a transverse vertical section on line 2-2 of Fig. l. i. .Y

vFig. 3 is a View in front elevation .on a slightly smaller scale' of half of the truck pedestal with the coactingy parts .removed showing theimproved `form of wear plate in position. j

.Fig fi is a view partly 1n section of the construction shown in Fig. 8, the section be in taken on line 4F41 of Fig. 3.

Fig. 5 is a transverse horizontal sectional view taken on lineA 5-5 of Fig. 3.

Fig. 6 is a top plan view of half of .a j ournal box pedestal.

Fig. 7 is a transverse vertical sectional view taken on line -7-7 of Fig. 6.

Fig. 8 is a view in side elevation of the pedestal wear plate showing the same before the said plate is 'pressed into shape to fit the coacting jaw; and

Fig. 9 is a perspective view of the wear plate after the pressing operation is completed.

Throughout the specification and drawings like parts are designated by like reference characters.

|Ihe numeral 1 designates a portion of the truck side frame to which is connected the pedestal 2. Said pedestal comprises a pair of upright flanges 3 and 4 adapted to lit on opposite sides of the side frame l and to be bolted thereto in the ordinary or conventional manner. The inner and outer flanges 3 .and 4 of the pedestal are connected by webs 5 which abut the under face of the frame l, as clearly shown in Figs. l and 7, and extending downwardly from the said pedestal flanges and lying on opposite sides ofthe journal box 6, are the pedestal jaws 7. Each pedestal jaw preferably comprises spaced downwardly extending webs, 8, 8, which are connected adjacent their lower ends by the transversely extending web 9 and by the upright web l0 the outer face of which is parallel with the outer faces of the said iianges or webs 8. The opening in each pedestal jaw above the upper end of the upright web 10 is adapted to receive the end of the adj acent equalizer bar ll.

It might be here noted that in passenger car trucks and in some freight car trucks the spring members by which the truck body is resiliently supported on the car axles, is not immediately interposed between the top of each journal box and the adjacent portion of the side frame, but is interposed between the side frame or in some instances the body bolster and` the journal boxes, by means of equalizer bars, the spring members being located in such position with reference to the side frame as to permit `of greater capacity springs being employed than could be employed were the springs located immediately above the journal boxes. By employing equalizer bars the size of the cushioning units is not limited, and the character of the truck side frame is much impwvedf- Theseequalizer bars, which are designated in the drawing by the reference character 11, extend through the openings in each pedestal jaw and have their adjacent ends in substan tial contact and are adapted to bear against'y the upper portion of the said journal box.

It will be readily apparent that the journal boxes, such as 6, which are mounted on the car axles so as to partake of all the inovei' ments thereof, will be caused to move with force, and itwill be readily appreciated that a grinding action will take place underthese conditions upon a relative movement ofthe journal box withl reference to the pedestal jaws. This relative movement between the L journal boxes and the pedestal jaws causes rapid wear of the said pedestal and destructive wear upon the journal boxes. To overcome this wear I provide each' pedestaljaw with a wear plate 12 preferably formed of pressed steel. The said wear plate may conveniently be manufactured from a sheet steel plate which is first cut or shaped tothe form shown in Fig. 8 where it is seen that the plate is substantially rectangular and provided with a downwardly projecting lip or tongue 13, a pair of lateral y4 projecting wings 14, 14, and a centrally disposed longitudinally extending slot 15 which, at its lower end, terminates in a Y or fork-shaped cut 16. The blank so formed may'then be put into a suitable press, and the side members or wings 14 bent inwardlyas are the portions of the plate which lie on opposite sides of the slot 15. The dotted lines 17 in Fig. 8 indicate the lines on which the portions of the plate are bent so as to form the said plate as clearlyshown in Fig. 9. The

flanges formed by the wings 14 extend sub.

stantiallyI the full length ofthe said plate, while the fianges 18 formed'by bending the intermediate portions of the plate along the dotted lines 17 terminate at a suitable distance from the lower edge of the said plate. The projecting lip or tongue 13 at the lower end of the plate is'also bent or curved inwardly and upwardly as best shown in Figs. 1 and 9. The plate so formed "is now ready to be applied to the pedestal jaw. It will' be noted that the distance between the lowermost portion of the tongue 13 and the lower ends of the diagonal cuts 16 is substantially e ual to the height of the vertical web 10 w iich connects the lower portion ofi' the pedestal jaws. The transversely extending web9 of each pedestal jaw is provided with a downwardly projecting rounded' shoulder 19 which is adapted to fit within the lip formed by the .inward bending of the fiange 13.

To apply the pedestal liner or wear plate the Vjournal box is removed and the liner forced or driven into a position so that the upper edge of the lip 13 lies below the shoulder 19 on the fiangeifor web 9. In this position the vertical webs 8 of the pedestal jaw extend between theflanges 13 and 18 formed in part bythe wings 14. The late-is then driven upwardly and inward y until the lip 13 is in contact with the lower face of the shoulder 19 and the main weblor plateis in tight contact with the outer face of the web 10'andthe outer faces of the webs 8. To maintain the platev in this position the tongue 20 formed by the diagonal cuts 16 is bent inwardly over the upper edge of the flange or web v10 and then downwardly behind the same, as clearly sho'wn in Fig. 1, so as to closely embrace the upper extremity of the flange 10. By this'means theplate or liner is maintained in position without the use offrivets or otherfastenng means, and isreadily removable in case of necessity. It will be notedthat the inwardly extending' flanges 1-8 of the saidiplate 12 lie on opposite sides of the ualizer bar 11 and protect the inner'faces gi the flanges 8 from wear due to the movement of the equalizer bars.

Each journal box is preferably rovide'd with a wear plate* 21 against which inner ends of the equalizer bars 11 are adapted to bear, and eachj'equalizer bar may be provided at its inner endwith a wear plateV 22 which may be retained in position thereon by spot welding the same to the equalizer bar; Y v

The pedestal guidewayal 23 formed in the side walls of the journall box lmay likewise be protected from wear'by employing pressed steel wear plates 24, and these v'eearl plates may be retained in position byA forming either the upper or the lower portions thereof with an inwardly extending curved'A perv tion 25, and providing the opposite end of the' wear' plate with a bendable or duetile tongue 26, which may be bent over theslioulder 27formed on either the upper or the lower walls of the journal box to thereby maintain the journal boxv wear plates in po sition. In case the journal boxes' areprovided with offsets 28, such Vas areshownin Fig. 1, so as to clear the particularY form of equalizer bar 1 1 shown insaid figure', the intermediate portions of thejournal box wear plates may be cut away as at 29 to prevent contact of thesame with'the equalizer bars. n

Having now describedrnyinvention, although it is to be understood that the terms employed are to be "taken in their descriptive and not their limiting sense, what I claim is l. The combination with a car truck, of a pedestal mounted thereon, said pedestal be ing provided with a pair of spaced jaws, a liner plate adapted to be applied to each pedestal jaw, and means integral with said plates 'for connecting the same to the respective pedestal jaws, said means being adapted to extend within a recess in the adjacent jaw.

2. The combination with a car truck, of a pedestal connected thereto, said pedestal having a pair of spaced jaws, a journalbox slidably mounted between the said jaws, and

, means comprising a wear plate interposed between each jaw and the said journal box, said plates having portions adapted to interlockingly engage the adjacent jaw at a plu'- rality of points and connected to the former for preventing wear upon the said jaws, said plates being maintained in position independent of the means for supporting said journal boxes.

3. The combination with a car truck, of a pedestal connected thereto, said pedestal being provided with a pair of spaced jaws, equalizer' bars associated with sald pedestal and each adapted to extend through an opening in one of the said jaws, and means connected to the said pedestal jaws and interposed between the same and the adjacent e ualizer bar and adapted to protect the sai jaws from wear.

4. The combination with a car truck, of a pedestal connected thereto, said pedestal having a pair of spaced jaws, liner plates adapted to overlie the adjacent faces of the said jaws, and means integral with each liner plate and adapted to embrace a portion of the adjacent jaw to maintain said liner plates in assembled position, each l plate also having flanged edges engaging the lateral edges of the adjacent jaw.

5. The combination with a car truck, of a pedestal connected thereto and provided with spaced jaws, each of said -jaws having upright webs connected adjacent the lower portions thereof, wear plates adapted to overlie said pedestal jaws, each of said plates having channels therein to receive the said upright webs, and means integrally formed on each of said plates for connecting the same to the said adjacent pedestal jaw.

In testimony whereof I aiiix my signature.y

AUGUST G. SANDMAN.

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