US1390362A

US1390362A - Railway-car-truck arrangement

Info

Publication number: US1390362A
Application number: US464112A
Authority: US
Inventors: John A Lamont
Original assignee: American Steel Foundries
Current assignee: American Steel Foundries
Priority date: 1921-04-25
Filing date: 1921-04-25
Publication date: 1921-09-13
Anticipated expiration: 1938-09-13

Description

J- A. LAMONT.`

RAILWAY CAR TRUCK ARRANGEMENT.

APP'ucATloN FILED APR.25.1921.

UNITED STATES JOHN A. LAMONT, or CHICAGO, iLLINOIs, Assieivon To AMERICANSTEEI. roUNDnIE-s,

OF CHICAGO, ILLINOIS, A CORPORATION vorfivnw Innsn.

RAILWAY-oAR-TRUCK AR-RANGEMENT.

. Patented Sept.' 13, 19211 Application filed April 25V, 1921. Serial No. 464,112.

1 To all y'zc/lam it may concern.'

Be it known that I. JOHN A. LaiIoN'r, a citizenof the Unit-ed States, residing at Chicago, in the county of Cool( and State of Illinois,l have invented certain new and` useful Improvements in Railway Car- Truck Arrangements, of which the following` is a specification.

This invention relates to a railway 'ai' truck arrangement and more particularly to six-wheel equalizing trucks and is an improvement on the arrangement disclosed in my copending application Serial Xo. 33,416 filed December 2. 1920.

@ne object of the invention is to further simplify and improve equalizing arrange ments for railway car trucks and especially those of the sixwheel type. l

Another object is to simplify the arrangement whereby Vthe loads are transmitted from equalizing levers to the associated joui'- nal box in a manner to provide increased clearance at the intermediate journal box to accommodate longitudinal movement of the equalizing mechanism including the equalizing' levers.

These and other objects are accomplished by means of the arrangement disclosed on the accompanying sheet ofY drawings in which- Figure 1 is a fragmentary vertical longitudinal sectional view through the side frame and associated parts of a six-wheel truck embodying my invention;

Fig. 2 is a fragmentary horizontal longitudinal sectional view taken in the plane of ,line 2 2 of Fig. l; and

Fig. 3 is a transverse vertical sectional view taken in the planes of the irregular line 3-3 of Fig. l. Y

rThe various novel features of niy invention will be apparent from the followingl description and dra-wings and will be pai'- ticularly pointed outin the appended claims.

Referring to the figures of the drawings, it will be noted that I have disclosed my invention in connection with a railway car truck of the six-wheel type and including a truck side frame 10 having end pockets (not shown) for the reception of end journal boxes and an intermedia-te pocket 11 for the reception of a middle journal box l2. This journal box has a main box portion for the reception of a journal 13 and outwardly cxtending: openended hollow wingsfat. each side thereof and each incliuling side 'walls ld, whichvat theirouter ends are connected bv end walls 15 which engage either the side" walls 16 which cooperate to form the inter-v mediate journal box pocket 1l or engage the steel wear plates -17 secured thereto for guiding the journal box 12 in Vits relative vertical movements.

Y The main Vcentral body portion of the journal box l 12 is provided with an inte- `rally fol-ined top or cover 18 upon which are directly mounted coil springsl and 22 'which are concentrically arranged with respect to each other. the coil springs 21 being within the coil springs 22 and heilig mounted over integrally formed upstanding .projections 23 on the top 18 of the joui'i'ial box for the purpose of holdingthe springs in place.l `Cooperating to perform this function'. the toplS of the journalbox 12 is provided also with a central rib 2st`whicli has alcurved contour conforming' fto the curve of the `coil springs '.,h/iounted .on top of these springs and bridging the sets of same is favspiing cap25 in which arervertically slidably mounted two yplungers 'or auxiliary spring caps 26, the `lower portions of which bear directlyup'on the inner relatively light coil sprinGs 2l and the stems of which are engagediby the lower surface of an equalizing beam 27, having a pivotal rocker projection 2S which is received within a pivot pocket 29 formed in the middle' in the equalizing beam 27. and clamping plate 30 and therefore the upper part of the cable 31 take a sinuous path for the purpose of preventing the cable from slipping. Preferably the clamping bolts 32 are located at the crimped portions of the cable and over the middle of the springs. The depending portions of the cable 31 terminate in members 322L which receive the inner ends of equalizing levers 33, which receive their llO loads from transverse bolster members, as disclosed in my copending application, ,Serial No. 133,417 iled December 27, 1920. rllhe loads which are transmitted through the equalizing levers 33 are further transmitted through the cable 31, equalizing beam 27, main spring cap 25, auxiliary spring caps 26,

springs

21 and 22, directly to the top 18 of the journal box 12. As a result of the auxiliary spring caps or plungers 26 engaging the inner relatively light coil springs 21 and also engaging the equalizing beam 27, equalizing levers 33 are maintained in a horizontalk or given position with respect to the journal box and when the car is loaded, the inner coil springs are compressed and thus serve as auxiliary springs. It is apparent from Fig. 1 of the drawings that if the equalizing beam 25 rotates in a counterclockwise direction, the auxiliary spring 21 on the lei''t hand side will be compressed an increased amount, thereby increasing the tendency of said spring to return the associated equalizing lever 27 to a horizontal position it it has moved from such position.

rlChe equalizing beam has downwardly extending side langes 34, which embrace the side of the main spring cap 25 for holding said parts in their proper relative positions. The vertical passageways 35 formed between the

journal box walls

14 and 15 are wide open at each end to give a considerable clearance for relatively wide range of longitudinal movement for the equalizing le vers 33 which is occasioned during starting and stopping actions of the car.

It is my intention to cover all modifications of the invention falling within the spirit and scope of the following claims.

I claim:

1. In a railway car truck, the combination of a journal box, springs mounted drectly on top of said journal box, a spring cap bridging Vsaid springs, an equalizing beam, said cap yand beam having a connection whereby one may be rotated' onthe other, and means operatively connected to said equalizing beam whereby loads may be transmitted to the latter and equalized with respect to said journal box.

2. In a railway car truck, the combination of a journal box, resilient means mounted directly on top of same, a member supported on said resilient means, an equalizing beam, said member and beam having a connection whereby one may be rotated on thel other, and means operatively associated with said beam whereby loads may be transmitted to the latter and equalized with respect to said journal box.

3. In a railway car truck, the combination olf a journal box having a main body portion and outwardly extending` hollow wings, load carrying springs mounted directly on top of said journal box, and equalizing mechanism operatively associated with said springs and including parts extending through said hollow wings.

1. In a railway car truck, the combination olf a journal box, equalizing mechanism operatively connected thereto and including an equalii/Jing beam mounted over said'box, and a load transmitting cable secured to said equalizing beam in a sinuous path to prevent slipping of said cable.

Signed at Chicago, Illinois, this 18 day of April, 1921. .j i

JOHN n. LAMoNT.