US1503517A

US1503517A - Six-wheel-truck bolster

Info

Publication number: US1503517A
Application number: US655828A
Authority: US
Inventors: Richardson Lawrence
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-08-06
Filing date: 1923-08-06
Publication date: 1924-08-05
Anticipated expiration: 1941-08-05

Description

Aug. 5 1924.

- RICHARDSON SIX-WHEEL TRUCK BOLSTER Filed Aug. 6. 1923 2 Sheets-Sham l Aug. 5 1.924.

. 1,503,517 L. RICHARDSON SIX-WHEEL waucx BOLSTER Filed Au 6, 192; 2 Sheets-Sheet 2 Patented Aug. 5, 1924 a ri a'ii rt eee ety fi son an at K n y ah mre edwe ta new and useful n5 ovements Sixlilbeellese 1 dates: a irl ih the t wn asres ieetion-v sf r vhih'isi te re y the dist bution. of the E l e p A a re p trueksadapted to irements under servlce me et the varlous requ ggndjtjons v s a These and other objects are accomplished by means of the arrangement disclosed on the." accompanying sheet of drawings, in whichp e a Figure 1 is a fragmentary top plan view of a railway car truck embodying my invention; V

Figure 2 is side elevation of the same car truck;

Figure 3 is a top plan view of my improved bolster;

s Figure 4 is a front elevation of the same; and i J i F igure 5. is a side elevation of said bolster.

"The various novel features of 'the'invention will beapparent from the following description and drawings, and will be par-r ticularly pointed out in the appended claims. j

7 Referring' to the figures of the drawings, it will be noted that-myinvention is illus trated in connection with .a six-wheel truck having side frames 10 (only one of which is sliow:n):,-having end, journal box openings 11 for the reception of end journal boxes 12, and 0penings'13 through which V transverse bolster members 14 extend. The

-- izing levers 15 having pedestal jaws for the reception of an intermediate journal box 17 and the other equalizing lever cooperating with its associated equalizing lever for assesses asca apsss, 01s

" *i srx-wrinnn-rngnc on 'filed August 6, 163

st ait atss ri glo s re ease itt menswear nsm t ns loads- 05 1 n ermediat 3' alo i Q 6 e dsv 1t a mit e -fr m the ansver e;bel t nmem erssl; a h 1 1 h-ifiQeds e ssi b te lrthe semeste s ib ie 2. free the t th -su mmiiiteg i ally formed. The tlnrd lag'lstejljt iuiit comprises the-main bolster member 19 which recast;

is separate from theotherbolster members and is supported 'by the longitudinal bolster members 18, preferably by having its outer ends extend through openings 20 in longitudinal bolster members-18 and resting upon the floor of said openings. The main bolit,

ster member 19 carr'ies the center plate and transmits the loads to the longitudinal bolster members 18'which, in turn, transmit theloads totransverse bolster members 14 from which the loads are through the equalizing levers to the various journal boxes, as above described. g

a 'Each, longitudinal bolster member is integrally formed with its associated trans verse bolster member 14 at a point on said transverse bolster member about one-quarter of its lengthfrom one end thereof The free end of each longitudinal bolster mem ber 18 has 21 which'fitover reduced portions 22 of the other transverse bolster member 14 in a manner to formv a flexible connection between such bolster members for giving the required fiexure tothe bolster construction for equalizing-the CllSU'llOUblOIl of distributed a theloads. At'thesame time the releasable or v slidable joint connections between the free end of each longitudinal bolstermemberand the opposite transverse bolster member is the free ends of the longitudinal bolster members 18 are loosely joined with the op- V posite transverse bolster members 14. These joints or points of contact are comparatively far apart and in view thereof any playin these joints will. have but little effect on the amount the four le s or bolster members 1e and 18 can get out of square with respect to each other. This also reduces the rolling resistance of the truck as well as the wear of the wheel flanges. If desired, in order to simplify the foundry operation, the transverse bolster members 14 may be cast separately from their associated longitudinal bolster members 18 and then securely connected to form the two separate units, each unit consisting of onetransverse bolster member I l and a longitudinal bolster mem ber 18. In each case, however, a longitudinal bolster member 18 will have a sliding joint connection with the opposite transverse bolster member for giving the required amount of fiexure for load equalizing and at the same time minimize the extent to which the truckcan get out of square.

The side bearings may be carried by either the main bolster 19 or by the interlocking bolster members, but preferably the side bearings are located on the main bolster 19 outside the longitudinally extending bolster members 18.

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 bolster for six-wheel trucks,the combination of a. unitary transverse bolster member and longitudinal bolster member, and a second unitary transverse bolster member and longitudinal bolster member, said units being separate and interlocked for giving the required flexure for load equalizing and at the same time minimize the extent to which the truck can get out of square.

2. In a bolster for six-wheel trucks, the combination of a unitary transverse bolster member and longitudinal bolster member, and a second unitary transverse bolster member and longitudinal bolster member, said units being separate and interlocked for giving the required flexure for load equalizing and at the same time minimize the extent to which the truck can get out of square, and a main bolster member for transmitting loads to said bolster units.

3. In a bolster for six-wheel trucks, the combination of two integrally formed bolster units, each bolster unit includin a transverse bolster member and a longltudinal bolster member, said units being flexibly connected for load equalizing and at the same time connected in a manner minimizing the extent to which the truck can get out of square.

4. In a bolster for six-wheel trucks, the combination of two separate units, each unit including a transverse bolster member integrally formed with a longitudinal bolster member, each of said units having a jaw for releasably slidably fitting a portion of the other unit for giving the required flexure for load equalizing and at the same time minimizing the extent to which the truck can get out of square.

5. In a bolster for six-wheel trucks, the combination of two separate units, each unit including a transverse bolster member integrally formed with a longitudinal bolster member, each of said units having a aw for releasably slidably fitting a portion of the other unit for giving the required flexure for load equalizing and at the same time minimizing the extent to which the truck can get out of square, and a main bolster member connecting the longitudinal bolster members.

6. A bolster for six-wheel trucks comprising three units, two of said units each comprising a transverse bolster member integrally formed with a longitudinal bolster member, each longitudinal bolster member being flexibly connected to the opposite transverse bolster member to form a line of fiexure diagonally across the bolster for equalizing the distribution of the load and at the same time minimize the extent to which the truck can get out of square,.the third bolster unit connecting the longitudinal bolster members.

7. In a bolster for six-wheel trucks, the combination of a unitary bolster member having a. transversely extending portion and a longitudinally extending portion, a second unitary bolster member having a transversely extending bolster portion and a longitudinally extending bolster portion, said units being separate and interlocked for giving the re quired fiexure for load equalizing, said longitudinally extending bolster portions having seats, and a main bolster member carried by said longitudinally extending portions and having bearings outside of said seats. Signed at Chicago, Illinois, this 3rd day of August, 1923.

LAWRENCE RICHARDSON.