US1867114A - Freight car truck - Google Patents

Description

July 12, 1932. Y J. J. TATUM 1,867,114

FREIGHT CAR TRUCK Filed Aug. 28, 1929 4 Sheets-Sheet l gnvcnfoz July 12, 1932. J TATUM FREIGHT CAR TRUCK Filed Aug. 28, 1929 4 Shee-tsSheet 2 July 12, 1932. J J TATUM 1,867,114

FREIGHT CAR TRUCK Filed Aug. 28, 1929 4 Sheets-Sheet 4 lllllllfiilllllllillliliillllllliiiiiiiilfliiliiiimliiiiiififi munmliliiiiiiifiww 7 III/III/ so as to provide against binding of the truck the same. v

Patented July 12, .1932

UNITED STATES JOHN J. TATUM, OF. BALTIMORE, MARYLAND FREIGHT CAR TRUCK Application filed August 28, 1929, Serial 1T0. 388,991.

From service experience it has been established that it is desirable to use trucks under freight cars of flexible structure of the type shown in my application, Serial No. 285,899,

in curves, thus insuring free movement of the trucks through curves which results in greater tonnage being drawn by the locomotive than is possible to be had with rigidly constructed trucks.

On account of this flexibility, there are,

necessarily, loose connections of one part of the truck to another part, allowing for free movements of the parts. These conditions result in more or less wear where one part of the structure chafes against another, and it is one of the objects of my invention to provide for the correction of these conditions by using assembled parts that can be readily and cheaply renewed, thus eliminating the scrapping of the main structures, which results in longer life of the expensive parts of the truck.

A further object of my invention is to provide a removable wear plate assembled on the I wearing face of the column post of the truck.

A further object is to provide removable wear plates for the bolsters.

A further object is to provide a wear plate forthe rear end of the journal box.

A further object of my invention is to provide automatic lubrication in the journal box and with these and other objects in view, my invention consists of the parts and combination of parts hereinafter pointed out.

In the drawings:

Figure 1 is a vertical sectional view through the side frame of a truck with integral journal box, including the wheel and journal.

Figure 2 is a detail top plan View of the side frame of a truck and journal box with the bolster in position.

Figure 3 is a side elevation of a side frame and journal box embodying my invention, associated parts of the truck being shown.

Figure 4 is a vertical sectional view of the truck side frame through the journal box.

Figure 5 is an end elevation of the rear splash pan.

Figure 9.

, Figure 6 is a transverse sectional yiewof the same. i a

Figure 7 is an end elevation of'the front splash pan. 1 i Figure-8 is a transversesectional view of Figure 9 is a top plan view 'ofthe'journal bearing showing the oil distributing grooves. Figure 10 is a transverse sectional view of Figure 11 is a detail sectional view.

The reference numeral 9 designates the sideframe ofa car truck, preferably of'cast steel, having a journal box'lO cast integrally therewith. On the rear end of the journal box-I provide a removable back plate 11 by'means of-the bolts '12, the heads of which are positioned in the annular groove "13 formed in said plate-11. -Between the plate 11 and the journal box I secure agasket 14. The plate '7 11 is, as shown, dish shape or'pan'shape, the flanges 15 offsetting it-fromthe face of the box to provide a packing spaceor chamber and in this space or chamber' I- place a felt washer 16 which functions to prevent the oil from getting out of the journal box while the gasket 14: prevents leakage of oil'at the joint'between'the plate 11 and the journal box. I provide a' flat spring steel ring 17 around the felt washer 16 to retain the washer in proper position tight against the axle; The journal box is provided at its front end with a front plate 18, having a filling spout 19 closed by a plug 20, there being a gasket "21 between the plate 18 and the journa lbox to prevent oil leakage.

lhe purpose of the removable back 11"o-f the journal box is to provide for" the renewal of the'back when it is worn from coming in contact with the wheel'hub 22, which renewal cost is much less than the cost would be of scrapping the entire journal box or the entire side frame of'the truck should thejOurnal box be cast integral with the side frame.

- On the back of the journal 23, at the journal box pit, there is a pan shaped oil distributor 24; having corrugated sides 25. This distributoris placed on the journal box pit of the axle 26 by'pressure so that as the axle rotates the oil distributor 24 rotates and oil" connection with distributor 24a, carries'the oil up in the same way.

The ring on the axle 23 is used only when this portion of the axle is. smaller than standard A. R. A. dimensions enabling me to make the rear end oil distributor 24e-for a standard axle,the ring, serving to take up whatever difference that may be existing;

This ring. has a groove in which the inner edge of the disc 24 is sprung, whereby the disc issecured thereto. 7

The reference numeral 31 designates an overhangiw edge orlip of the dust guard opening near the bottom of the box, the pur poseof which is-to prevent oil from swishing up to the dustguard. The lower dust guard wall. is bevelled as, at 32 so that when oil swishes against the dust guard it will freely run backinto the bottom of the box. This vmethod. of lubrication eliminates the use of saturated waste inthe bottom of the journal 'box'and provides for the lubrication of the journal tree oil,

. The side frame column post 33 is provided with a removablewear plate 34 riveted to the column. post, and can be readily removed ind renewed. by the removal and replacement ofthe rivets. The bolster 35 is provided with rsremevable wear plate 36 which is riveted to side of the bolster that chates against'the plate 34-011: the column post.

At the bottom o-fthe side frame; I provide melongated slot 37 in which is placed the rod 38-which extends fromside frame to side imme onthe truck.v This rod eliminates the use oi'the conventional spring plank former- 11y used 8P0$ the truck, and reduces the weightvand' cost of the truck This is accomplished by arrangingthe floorspace on the top of the lower section of the truck side from between the two column posts of sufficient size to provide for the sealingof the helical springs placed under the ends of the truck bolster which carry the; load of the car.

The tie rod 38 provides for flexibility in the ttuck bein'g positioned in the elongated slot 37, and. eliminates the rigidity formerly present in. the use of the conventional spring The inner portion of the top edge of the bearing flangeistapered as at 33' providingan intake for the oil fromlthe oil distributor on the axle to the top of the journal, a

- In Figure 11' I have shown the spring seat 5001 34 surrounded by an upward projecting lange'35, fromits rear andforward edges to prevent displacement of the springs from the bolster between the column force caused'by the lateral movement of the post. What I claim is:

1. In combination, in a car truck, a journal box, a journal in said box, a disc secured to said journal having a bodily crimped annular flange, said crimps of the flange forming corrugations to pick up oil in the bottom of the box and convey it to the top of the box and means to convey the oil to the top of the journal, V

2. In combination, in a car truck, a ournal box, a journal in said box, a sheet metal disc secured at the rear of the journal within said box and flanged toward the'front of the box,

' and a sheet metal disc secured to the front end of the journal and flanged towardthe rear of the box, saiddiscs rotating through oil in the bottom of the box and having their flanges'bodily crimped to provide undulating 7 surfaces forming pockets to pick up oil and convey it to the top of the box. 7

3. In a' bearing, a journal box, a journal arranged therein, a journal bearinglocated on the top of the journal and provided with its top and sides, and rotating discs carried oil distributing channels extending through by the" journal and having crimped flanges forming. corrugations for raising oil from the bottom of the box to said channels. 1

4. In a car journal, a journal box having an oil reservoir at its base, a journal extending into the box, 7 anannular oil elevating member surrounding the journal and having an edge portion spaced from an adjacent part i of the journal, andv a grooved distance-take" up ring surrounding the; journal and disposed between the same and said edge portion of the oil elevating member, said edge portion of the oil elevating member being secured in said groove. 7

5. In a car journal,a journal boxhaving an oil reservoir at its base, a journal extending into the journal box, a journal hearing at the top of thebox having oil receiving channels at the ends thereof and oil feed ports extending from said channels to supply oil to thejournal, and discs at the ends of the journal having annular flanges overhanging the ends of the bearing and dipping into the oil in the reservoir and crimped to provide undulating pockets therein to convey oil from the reservoir to the said oil receiving channels in the bearing.

In testimony whereof I afiix my signature.

JOHN J, TATUM.

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