US2394238A

US2394238A - Railway car truck

Info

Publication number: US2394238A
Application number: US483621A
Authority: US
Inventors: George S Goodwin
Original assignee: Individual
Current assignee: Individual
Priority date: 1943-04-19
Filing date: 1943-04-19
Publication date: 1946-02-05
Anticipated expiration: 1963-02-05

Description

Feb. 5, 1946. G s. GOODWIN RA IL AY CAR TRUCK Filed April 19, 1943 3 Sheets-Sheet 1 V gwuc/wbo'b 680/196 Gama Wm,

RAILWAY CAR TRUCK Filed April 19, 1943 s Sheets-Sheet 2 Geo/ 6'. @OdW/b,

Patented Feb. 5, 1946 RAILWAY CAR George S. Goodwim, Chicago, Ill.

Application Aprif I9, 1943;, Serial No. 483.621 a Claims; (01. 105-495):

This invention relates to railway car trucks and more particularly to six-wheel trucks of the equalizer type.

In recent years equalizers of such trucks. have been equipped with roller bearings. and the central axle roller bearing housings have been.

formed integrally with the equalizer members. With this type of equalizer it is the practice of railroads to stock extra pairs. of wheels and, axles.

having roller bearing equalizers in place, to facilitate maintenance. an extra pair having roller bearing. boxes is also stocked, so that pairs of wheels having bothroller bearing equalizers and roller bearing boxes in.

place, must be provided at maintenance points for these trucks.

The primary object of the present invention is to eliminate this disadvantage and to. reduce by fifty per cent the kinds of equipment to bev carried in stock.

Another object of the invention is to provide.

equalizers capable of receiving the journal boxes.

of end wheels and this without weakening the equalizer or adding materially to its weight.

The invention will be more fully understood when taken in connection with the accompanying drawings. and the novelfeatures thereof will be pointed. out and clearly defined in. the claims at the close of this specification.

In the drawings:

Fig. i is a side elevation of a truck. provided with my improvements.

Fig. 2 is anv enlarged elevation of the. central portion of the truck.

Fig. 31s a. horizontal sectionalview taken on the. line 3.3 of Fig. 2.

' Fig. 4 is a vertical sectional view on the linev 4--4 of Fig. 2.

Fig. 5 is a vertical sectional view of a modification of a detail.

Before proceeding with the detailed description, it will be noted that I propose to'form' a pedestal opening in the equalizer member whereby the same journal bearing housing, as used on the end axles, may also be used on the central axle. This arrangement has the advantage that special central pairs of wheels with equalizers in place are unnecessary at maintenance points.

Referring to the drawings:

l0 and II designate the end members, and [2 the equalizer of one of the side frames of a sixwheel truck; these members being pivotally connected at l3 in the conventional way. In the usual manner the end members are provided with pedestal openings M for the reception of an anti- For changing end wheels.

friction bearing housing l5, v secured to the and member by a removable clip It.

In accordance with the invention, the. equal izer member l2 (Fig; 2) is provided with a similar:

pedestal opening 1'1 which receives a journal bearing housing. It identical with. each of the. end housings 15. After the housing and equalizer are assembled, the bottom of the pedestal opening IT is closed. by a bar t9, secured. in posi tion byany suitable means such as bolts 23. The stress inmember l9is' compressive and. close contact between an upwardly projecting portion ii of the bar and the sides 22 ofthe pedestal opening is assured .by arranging cooperating upwardly converging surfaces 23 formed on both member I9 and the sidesof the equalizer pedestal. These surfaces are drawn into close contact by tightening the" bolts 20 which causes the bar it to become an essential and primary structural member of the equalizer.

The top portion 24 above the equalizer pedestal opening is subject. to' direct: tension and bending stressesand I, therefore, prefer to make it in box section (Fig. 4) as indicated at 25. It may; however, be made in solid section as indicated at 216' (Fig. 5) and provided with reinforcing ribbing 21, depending on the loads. to be carried.

The particular application. for which this equalizer was developed required that the end and center pedestals be designed to receive. roller bearing journal housings, used in. another make. of truck which were adapted to support a leaf spring on the top of the journal bearing housing. Accordingly, a loading pad 28. (Fig. 4) .is formed on. the bottom of the top portion i' lof the. equalizer so as to. enter the spring band recess 29 at the top of the housing, [8. Lateral forces between the housing and the equalizer are transmitted through the side walls of the recess 29 and edges of they loading pad 28 and also through. lugs 30' (Fig. 3). on the housing which cooperate. with the. vertical, walls 3 l on the inner side. of the equalizer pedestal.

From the ioregoing. it isbelieved that the construction and advantages of the improvements may be readily understood and it is apparent that changes may be made in the details disclosed without departing from the spirit of the invention as expressed in the appended claims. Although the drawings and description are directed to a particular type of roller bearing, it is manifest that the invention can be adapted for use with any type of bearing of the friction or anti-friction type. It will also be clear that each opening and detachably connected to the jaws of the member having that opening, a bar detachably connecting the jaws of the equalizer member and securing the journal box of that member in position, said bar having approximately the same cross sectional size as the por tion of the equalizer member above the last-mentioned journal box, and means at the top of the last-mentioned journal box interlocking it with the top portion of the equalizer member, said means including a pad projecting downwardly from the top portion of the equalizer member, and a recess in the top of thebox. 'i'

2. An equalizer for a railway car truck having pedestal jaws arranged at l opposite sides of a journal box opening, a journal box arranged in said opening and detachably connected to said jaws, a bar detachably connecting the jaws of the equalifier and securing the journal box in position, said bar having approximately the same cross sectional size as the portion of the equalizer above said journal box, and means at the top'of the journal box interlocking it with 'the't'op portion of the equalizer, said means including a pad projecting downwardly from the top portion of the equalizer into a recess in the top of the box.

3. In a railway car truck equalizer of the type having oppositely extendingarms, said equalizer being provided with a centrally disposed pedestal opening, a journal box arranged in said opening, a bar securing the journal box in the opening and projecting upwardly into said opening; said bar below the journal box having approximately the same cross sectional size as the portion of the equalizer above the journal box, means detachably connecting the ends' of the bar to the equalizer at opposite sides of the opening, and a second means at the top of the box interlocking it with the top portion of the equalizer, the second means including a pad projecting downwardly from the top portion of the equalizer and a recess in the top of the box. v

4. In a railway car truck equalizer of thetype having oppositely extending arms, said'equalizer being provided with a centrally disposed pedestal opening, a journal box arranged'in said opening, a bar securing the journal box in the opening, said bar having approximately the same cross sectional size as the portion of the equalizer above said journal box and means 'detachablyconnecting the ends of the bar to the equalizer at opposite sides of the opening, said' bar extending upwardly into the opening, the end portions of the bar and the equalizer having oppositely disposed upwardly converging contacting surfaces.

5. An equalizer for a railway car truck provided with a pedestal opening, the portion of the equalizer above said opening being of box section, a journal box removably arranged in said opening, means at the top of thebox interlocking it with the top portion of the equalizer, said means including a pad projecting downwardly from the top portion of the equalizer and a recess in the top of the box and a bar holding the journal box in place and having its ends detachably secured to the equalizer at opposite sides of the pedestal opening, said bar having approximately the same cross sectional size as the portion of the equalizer above said box.

6. An equalizer for a railway car truck provided with a pedestal opening adapted to detachably receive a journal box, a pad projecting downwardly from the top of the equalizer into said opening. and adapted to extend into a recess in the. top of a journal box and a bar extending across the bottom of said opening and having its ends detachably secured to the equalizer, said bar having approximately the same cross sectional size as the portion of the equalizer above said box.

7. An equalizer for a railway car truck provided with oppositely extending arms and a pedestal opening, the portion of the equalizer above said opening and between said arms being of box section, a pad projecting downwardly from the top portion of the equalizer into said opening and adapted to extend into a recess of a journal box and a bar extending across the bottom of the opening and having its ends detachably secured to the equalizer at opposite sides of said opening,

top of the box interlocking it with the top portion of the equalizer, said means comprising a pad and a recess into which the pad extends.

9. In combination, a railway car truck equalizer member provided with a pedestal opening, a journal box removably arranged in the opening,

a bar arranged below the box and detachably securing it to the equalizer member, said bar having approximately the same cross sectional size as the portion of the equalizer member above said journal box and means at the top of the box interlocking it with the top portion. of the equalizer member, said means including. a pad projecting downwardly from the top portion of the equalizer member and a recess in the top of the box.

GEORGE S. GOODWIN.