US2399519A

US2399519A - Truck

Info

Publication number: US2399519A
Application number: US511884A
Authority: US
Inventors: Carl E Tack
Original assignee: American Steel Foundries
Current assignee: American Steel Foundries
Priority date: 1941-05-26
Filing date: 1943-11-26
Publication date: 1946-04-30
Anticipated expiration: 1963-04-30

Description

C. E. TACK A ril so, 1946.

TRUCK Original Filed May 26, 1941 2 Sheets-Sheet l INVENTOR.

April 30, 1946. c. E. TACK TRUCK 1941 2 Sheets-Sheet 2 Original Filed May 26 IN V EN TOR.

Patented Apr. 30, 1946 3 UNITED STATES PATENT OFFICE TRUCK Carl E. Tack, Chicago, Ill., asslgnor to American Steel Foundries, Chicago, Ill., a corporation of New Jersey Original application May 26, 1941, Serial No.

395,131. Divided and this application November 26, 1943, Serial No. 511,884

8 Claims.

My invention relates to railway car trucks and more particularly to a novel passenger car truck in which the upper frame member is spring-supported from equalizers or lower frame members mounted on the truck'journal boxes. The present application is divided out of my co-pendlng application, Serial No. 395,131, filed May 26, 1941, in the United States Patent Oflice, for Brake arrangement.

The principal object of the present invention is to design a novel spring suspension wherein the upper frame member is supported from springs mounted on theequalizers inwardly, as well as outwardly of the journal box engaging portionsthereof.

In my novel truck, each end portion of the equalizer is provided with spaced pedestals defining an opening for the reception of the associated journal box, springsbeing housed in respective pedestals for the support of the upper frame member which comprises adjacent each end thereof a. depending leg housed in the adjacent pedestal and cooperating therewith to limit relative movement between the upper frame member and the equalizer longitudinally as well as laterally of the truck.

In the drawings, a

Figure 1 is a half top plan view of a railwa car truck embodying my invention, only one-half of the truck being illustrated inasmuch as it is symmetrical about its longitudinal center line,

verse web 23 extending between the inboardly and outboardly flared

continuations

24 and 26 respectively of the side walls 6 and 8, and the pedestal. l6 comprises the transverse web 28 extending between the

walls

24 and 28, said

webs

23 and 28 merging with the top wall 30 seated a at 32 upon the adjacent journal box 20.

Formed within the pedestal I4 is a spring seat '33 afforded by the widened extremity of the top chord ill, and within the pedestal I6 is a spring seat 34 formed on the horizontal web 36 extending between the

walls

24 and 26, said

seats

33 and 34 being substantially coplanar and afiording support for spring groups diagrammatically indicated at 38, 38.

A tie bar 40 extends between the pedestals Hi and i6, said bar being securedat 42, 42 to the soms being formed and arranged to support thereone end of the upper frame member being broken away. in order more clearly to illustrate the equalizer therebeneath. I

Figure 2 is aside elevation ofthe structure shown in Figure 1. I

Figure '3 is an end view takenfrom the left es seen in Figures 1 and 2, and Figure 4*is a sectionalview taken in the transverse vertical plane indicated by the line 4'-4 of Figure 2.

r Describing m invention in -detail,-- the equalizer 7 or lower frame member 2 comprises a central H portion 4- of box-section with the inboard and outboard side walls 6 and 8 and the topand bot-l tom chords Ill and l2 -as best seen in the sectional view of Figure 4.; At each end thereofthe equalizer member 2 comprises an end portion formed with spaced'inner and outer pedestals or jaws l4 and and theintermediate pedestal opening i8 ner with the adjacent end of the wheel and axle assembly 22.

Each inner pedestal l4 comprises the trans between-a bolster (not shown) .in conventional manner.

The side rail 46 is of box-section (Figure 4) and at' each end thereof is formed with a depending leg or pedestal 52 received between the

walls

24 and 26 of the adjacent pedestal jaw M for cooperation withthe transverse web 23 thereof to limiturelative movement between the

members

2 and 44 longitudinally of the truck, said leg 52 cooperating with the inboard and outboard lugs -54 and 56 (Figure 1) formed on the walls 24 and 28' respectively for limiting relative movement betwee'nthe

members

2 and 44 transversely of thetruck. It may be noted that the leg 52 and "thefcooperating surfaces ofthe pedestal jaw I4 are preferably provided with liners or wear plates a formed and arranged for the reception of the journal-box associated in the customary mam The sidezrail 46 isformed adjacent each end thereof with a spring seat on the bottom chord thereof and inwardly of the leg 52, said side rail 46 also being provided on the bottom chord there- .of'with the spring seat 62 disposed outwardly of theadjacent leg 52. The seatstll and 62 are 7 substantially coplanar and ailord support for the member 44 on the associated

springs

38, 38. 7 .-It may be noted-that the equalizer member 2 ments. Adjacent each bracket 68 the central.

portion 4 of the equallzer'is formed with a transverse slot 61 for the reception of an associated brake lever, and approximately midway intermediate its ends the equalizer is formed with the upstanding brake cylinder support bracket 88.

The brake mechanism associated with the various support structures illustrated is particularly shown and described in my above-mentioned co-pending application, and the brake rigging is 3. In a railway car truck, spaced wheel and axle assemblies comprising journal boxes, an equalizer at each side of the truck comprising a central portion of box-section having top and bottom chords and inboard and outboard walls, an end portion at each end of said equalizer comprising spaced pedestals, each having a transbeing eliminated in the present application in order to clarify the illustration of the truck which embodies the present invention. It is to be understood that I, do not wish to be limited by the'exact embodiment of the device shown which is merely by way of illustration: and not limitation as various and other forms of the device will, of course, be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

I claim:

1. In a railway car truck, spaced wheel and axle assemblies comprising journal boxes, an equalizer at each side of the truck comprising a central portion of box-section having top and bottom chords and inboard and outboard walls, an end portion at each end of said equalizer comprising spaced pedestals, each having a transverse web extending between continuations of said between said transverse webs and seatedon the adjacent box, spring seats within respective pedestals, one of said seats being afforded by the adjacent extremity of said top chord, and the other of said seats being afforded by a' transverse web extending between said continuations, springs on said seats, and an upper frame member comprising legs housed in the inner of said pedestals, said upper member having spring seats inwardly and outwardly of said legs and bearing upon the associated springs, each leg cooperating with the adjacent transverse web. to limit relative longitudinal movement between said equalizer and said upper member, and each leg cooperating with means on the adjacent portions of said continuations for limiting relative transverse movement between said upper member and said equalizer.

2. In a railway car truck, spaced wheel and axle assemblies comprising journal boxes, an equalizer at each side of the truck comprising a central porinboard and outboard walls, a top web extending tion of box-section having top and bottom chords and inboard and outboard walls, an end portion at each end of said equalizer comprising spaced pedestals, each having a transverse web extending between continuations of said inboard and outboard walls, a top web extending between said verse web extending between continuations of said inboard and outboard walls, a top web extending between said transverse webs and seated on the adjacent box, spring seats within respective pedestals, one of said seats being aflorded by the adjacent extremity of said top chord, and the other of said seats being afforded by a transverse web extending between'said continuations, springs on said seats, and an upper frame member comprising legs housed in the irmer of said pedestals,

said upper-member having spring seats inwardly and outwardly of saidlegs and bearing upon the associated springs.

4. In an equalizer for a railway car truck, a member having a central portion of box-section with inboard and outboard side walls and top and bottom chords, said member having end portions each comprising spaced pedestals, each of said pedestals having a transverse web extending between continuations of said side walls and merging with a top wall extending between said webs, spring seats on said top chord at opposite extremities thereof, said seats being disposed within the inner pedestals, and other spring seats formed on transverse webs in the outer pedestals extending between said continuations.

5. In a railway car truck, spaced wheel and axle assemblies comprising journal means, an equalizer having aportion at each end thereof supported by the associated journal means and comprising spaced vertical walls embracing the same, resilient means mounted on said equalizer inwardly and outwardly of each assembly. a frame member supported by said resilient means, and spaced depending legs on said frame member adjacent opposite extremities thereof recessed within adjacent portions of said equalizer and cooperating with abutment means therein to limit relative movement between said frame member and said equalizer laterally of the truck, each of said legs being engageable with the associated wall to limit relative movement between said frame member and said equalizer longitudinally of the truck.

6. In a railway car truck, spaced wheel and axle assemblies comprising journal means, an equalizer carried at each end thereof by the associated journal means and comprising a transverse substan-' tially vertical wall inwardly thereof, resilient means on said equalizer inwardly and outwardly of each assembly, a truck frame supported by said resilient means, and spaced depending legs on said frame adjacent opposite ends thereof and cooperating with inboard and outboard walls of said equalizer to limit relative lateral movement between said frame and said equalizer, each of said legs being engageable with the adjacent vertical wall to limit relative longitudinal movement between said frame and said equalizer.

7. In a railway car truck, spaced wheel and axle assemblies comprising journal boxes, an equalizer carried at each end thereof by the associated box and comprising spaced walls embracing the same, springs mounted on said equalizer inwardly and outwardly of each box, a frame member supported by said springs, and spaced depending elements rigidly connected to said frame member and depending therefrom adjacent opposite extremities thereof, said elements box, a frame member supported by said springs, 15

and spaced depending elements rigidly connected to said frame member and depending therefrom adjacent opposite extremities thereof, said elements being received within portions of said equalizer for cooperation with abutment means therein to limit relative lateral movement between said frame member and said equalizer, each of said elements being spaced at all times from the adjacent box by the adjacent wall and being l0.engageable therewith and vertically movable 'thereagainst, whereby relative longitudinal movement between said frame member and said equalizer is limited.

CARL E. TACK.