US702564A

US702564A - Car-truck.

Info

Publication number: US702564A
Application number: US9047002A
Authority: US
Inventors: Herbert R Keithley
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-01-20
Filing date: 1902-01-20
Publication date: 1902-06-17
Anticipated expiration: 1919-06-17

Description

"0.7112564, Patented lune l7, I902.

H. n. KEITHLEY.

CAR TRUCK.

(Application filed Jan. 20,1902.

3 sheets-sham L' (No Model.)

"llllllll frame/fir,

v No. 702,564. .Patented'lunb l7, I902.

H. n. KEITHLEY',

' GAR TRUCK.

(A lication filed 1m 20, 1902. 1 (No' Model.) 3 Shanty-Shut 2.'

No. -702,564.- 'Patented lune-l7, |902.

H. n. K-EITHLEY;

GAB TRUCK.

(Application filed Jan. 20, 1902.) I (No-Model.) 3 Sham -Sheet 3.

THE NORRIS PEIERS cu, PHOTD-LITHO.. WASHINGTON, D, 0,

UNITED STATES I'PATENT O EIcE.

HERBERT R. KEITHLEY, OF BUFFALO, NEW YORK.

CAR-TRUCK.

sPEcIFrcAtrIoN-romin part of Letters Patent No. 702,564, dated. June 17, 1902. Application filed January 20.1902. Serial No. 90,470. (No model.)

To all whom itmay-concei-m Be it known that I, HERBERT R KElTflLEY, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Gar-Trucks, of which the following is a specification.

This invention relates to a truck for railway-cars in which the side frames are built up of commercial shapes and plates riveted or bolted together.

One of the chief advantages of the wellknown diamond truck is the truss construction of the side frames, in which practically all of the metal is in the upper and lower arch-bars, which form the compression and tension members of the'trussed frame; but these side frames are usually rigidly connected to the journal-boxes and are therefore subjected to severe strains and jars. This type of truck, furthermore, has not the requisite strength for the heavy loads placed upon the same in the use of the modern large steel cars. In the pressed-steel pedestaltruck, in which springs are interposed between the journal-boxes and the side frames of the truck, the frame is largely relieved of the strains and jars to which the diamondtruck-frame is subjected; butthese pressedsteel frames are very heavy and are made up of specially-shaped parts requiring expensive and specially-designed machinery for their production.

The object of this invention is to produce a built-up truck-frame constructed of the minimum number of parts, which will have the maximum strength and rigidity for a givenweight of metal and which will embody the essential and distinctive features of both the diamond and pedestal types of trucks.

In the accompanying drawings, consisting of three sheets, Figure l is a side elevation of a railway-car truck embodying the invention; Fig. 2, an end view of the same, showing one half of the truck-frame in elevation and the other half in section, the plane of the sectional portion being in line 2 2, Fig. 1. Fig. 3 is a perspective view of the truckframe. Fig. 4: is aside elevation of the truck, showing the use of a bolster therewith. Fig.

' 5 is an end view thereof, showing one half of the truck-framein elevation and the other half in section, the plane of the sectional por tionbeing in line 5 5,:Fig. 4.

Like letters of reference refer to like parts in the several figures.

The truck-frame comprises two side frames connected by a transversetransom, each of the side frames being composed of pedestals at or near the ends and connecting-frame members.

A A represent the pedestals, which are preferably, as shown in the drawings, of invertedr U shapeand formed of angle-bars arranged with one flange a standing vertically and the other flange a projecting outwardly from the inner edge of theyertical flange. The pedestalsstraddle the journal-boxes. B, as usual, and areguided by the journal-boxes in the up-and-down movements of the truck-frame.

O and D represent, respectively, lower and upper or'tension and compression members of the trussed side frames. The tension member is bent to provide horizontal end portions which extend over and rest upon the upper horizontal portions of the outwardly-projecting flanges a of the pedestals, downwardlyconverging inclined portions 0, and a central horizontal portion connecting the lower ends of theinclined portions. The upper or compression member, as shown in the drawings, is similarly bent to provide the end horizontal portions (1, inclined portions '01, and a central horizontal connection portion 61 but theinclination of the inclined portions 01 of the compression member is much less than that of the tension member, so that the tension and compression members are separated at their middle portions by an intervening space. The tension and compression members are preferably formed of Z-bars arranged with the end portions of their webs standing vertically side by side and outside of and parallel with the verticalflanges of the pod estals A. The lower flanges d of the tension and compression members at their ends are superposed andproject outwardly above the flange a of the pedestals, and the upper flanges d of said members are superposedand project inwardlyover the tops of the ver tical webs of the pedestals. The tension and compression members are secured to each other at their ends and to the adjacent portions of the vertical flanges of the pedestals by rivets or the like (1 truss members may be reversed, so that the lateral flanges of the pedestals extend inwardly and the upper flanges of the tension and compression members extend outwardly over the tops of the vertical pedestal-flanges without altering the relative arrangement of the several parts.

E represents a horizontal frame member, which connects the lower ends of the two pedestals. Thismemberispreferablyin theform of an angle bar or plate with a lower inwardly-projecting flange e, and its ends,which lie flat against the inner faces of the vertical flanges of the pedestals, are secured thereto by rivets or the like 6 passing through the pedestal-flanges and the bar or plate. The vertical web of this frame memberlies against the inner face-of the lower horizontal portion 0 of the tension member beneath the inwardly-projecting flange thereof.

F represents tie-bolts connecting the legs of the pedestals beneath the journal-boxes. The bolts pass through the lateral flanges of the pedestals and through spacing-sleeves f. A tie of any other desired form may be employed.

The side frames are supported from the journal-boxes, as usual, by springs G, arranged between the tops of thejournal-boxes and the horizontal portions of the pedestals. Spring-caps g, of any desired form, are preferably interposed between the tops of the springs and the pedestals. The transom which connects the side frames is shown as composed of two 2 plates or bars II, the u pper flanges h of which project outwardly or away from each other and the lower flanges h of which project inwardly or toward each other. Each plate or bar has at its opposite ends vertical flanges 712, which are continuations of the top flanges hand extend outward or away from each other and are continued around under the ends of the lower flanges h of the plates or bars, as indicated at h These transom plates or bars can be readily made by forming a continuous flange on one longitudinal side and the two ends of a plate and then bending the unflanged side of the plate at right angles to the body of the plate to form the lower flange h of the transom member. The lower flanges 72 of the transom members rest at their ends on the horizontal central portions of the tension members of the side frames, and the end flanges 7L2 lie against the outer faces of the webs of the ten sion members, to which they are secured by rivets or the like 71. The upper portions of the ends of the transom members are arranged inside of the webs of the compression members, and vertical plates I are interposed between the webs of the compression members and the end flanges of the transom members. The parts are rigidly connected by rivets or the like 2', which pass through the plate I and the end flanges of the transom members, through the compression member and The pedestals and plate, and through the compression-member plate and end flanges of the transom members.

The truck-frame constructed as thus far described and as shown in Figs. 1, 2, and 3 can be used without a truck-bolster, the car being supported directly from the transom. The construction also permits of the employment of a bolster which is supported, as usual, at its ends by springs arranged in the end portions of the transom.

In Figs. 4: and 5 a bolster J is shown, which at its ends rests on springsj, which are supported on plates 3', secured to the bottom flanges h of the transom members. The bolster may be of any suitable construction. With the truck constructedas thus described two sets of springs are interposed between the journal-boxes and the car-body, one set being arranged between the journal-boxes and the truck-frame and the other set between the truck-frame and the car-body, thereby doubling the spring movement. The truck-frame is thus cushioned between two sets of springs and becomes a much more effective and efficient means for transmitting the load from the moving car to the rails and enables the carrying of a much heavier load without damage to the truck-frame or to the track.

The Z-bar construction gives greater stifliness and transverse strength at the ends of the side frames, which form its pedestal-supports, and great lateral strength and stiffness to resist the side thrusts to which the truckframe is subjected in rounding curves. The truck-frame is built of very few parts, and the joints between these parts are so arranged that large riveting areas are secured.

I claim as my invention- 1. In a trussed side frame for railway-car trucks the combination of two pedestals, a tension member formed with a vertical web and oppositely-projecting lateral flanges, a compression member formed with a vertical web and oppositely-projecting lateral flanges,

- the end portions of the webs of said tension and compression members being arranged vertically and secured to said pedestals, and the end portions of the lateral flanges of one of said members being arranged directly above the end portions of the lateral flanges of the other member, substantially as set forth.

2. In a trussed side frame for railway-car trucks,the combination of pedestals each having a vertical web and a laterally-projecting flange, a tension member formed with a vertical web and a horizontal flange, and a compression member formed with a vertical web auda horizontal flange,the end portions of the webs of said tension and compression members being arranged vertically side by side and riveted to each other and to the vertical webs of said pedestals, and the end portions of the horizontal flange of one of said members being arranged directly above the end tension and compression members being superposed, and connecting-rivets or the'like passing through the vertical webs of said tension and compression members and the vertical webs of said pedestals, substantially as set forth.

4. In a trussed side frame for railway-car trucks, the combination of two pedestals each having a vertical web and a lateral flange, a,

tension member formed with a vertical web and oppositely-projecting upper and lower flanges, a compression member formed with avertical web and a horizontal flange, the end portions of the webs ofthe tension and compression members being arranged side by side and parallel with the vertical webs of the pedestals, and the end portions of the upper flanges of said tensionand compression members being superposed and extending over the vertical webs of the pedestals and connectingrivets or the like passing through the vertical webs of said tension and compression members and the vertical flanges of said pedestals, substantially as set forth.

5. In a trussed side frame for railway-car trucks, the combination of two pedestals each having a vertical web and a lateral flange, a tension member formed with a vertical web and oppositely-projecting upper and lower flanges, a compression member formed with a vertical web and oppositely-projecting upper and lowerflanges, the end portions of the webs of the tension and compression members being arranged side by side and parallel with the vertical webs of the pedestals and the end portions of the upper flanges or said tension and compression members being superposed and extending overthe vertical webs of the pedestals and end portions of the lower flanges of said tension and compression members being superposed and being arranged over the lateral flanges of .the'pedestals, and connecting-rivets or the like passing through the vertical webs of said tension and compression members and the vertical flanges of said pedestals, substantially as set forth.

- 6. In a railway-car truck, the combination of two side frames, each composed of two pedestals having vertical webs,atension member formed with a verticalweb and a horizontal flange,a compression member formed with a vertical web and a horizontal flange,

the end portions'of the webs of said tension and compression members being arranged side by side and parallel with the vertical webs of the pedestals and theendportions of the horizontal flanges of said members being superposed and extending over the vertical webs of the pedestals, rivets or the like connecting the webs of said tension and compression members to the vertical webs of said pedestals, a transomhaving vertical end flanges, the lowerportions of'which are secured to the vertical webs of thetension members, and the upper portions of which are secured to the verticalwebs of said compression members, substantially as set forth.-

' 7. In a railway-car truck, the combination of two side frames, each composed of pedestals having vertical webs and laterally-projecting flanges, a tension member formed with a verticalweb and a horizontal flange, a compression member formed withavertical web anda horizontal flange, the end portions of the webs of said tension and compression members being arranged side by side and parallel with the vertical webs of the pedestals, and the end portions of their horizontal flanges being superposed and extending-over the vertical webs 'of said pedestals, rivets or the like connecting the end portions of the webs of the tension and compression members together and to said pedestals, atransom arranged between said side frames and composed of two Z members each having vertical end flanges, rivets or the like securing the lower portionsof the end flanges of the tranv som membersto said tension members, a plate arranged between the upper portionsofthe end flanges of said transom, members and'the' vertical websofthe compression members, and rivets or the like connecting said-plates tosaid compression members andto theend flanges of saidtransom members, substan-- tially as set forth. i 8. The combination oftwo side frameseach composed of pedestals, a tension member formed with a vertical web .and oppositelyprojecting lateral flanges,a compression member formed with a vertical web and oppositelyprojecting lateral flanges, the end portions of the webs ofsaid tension and. compression members being arranged vertically and-se-- cured tothe pedestals,,and, the.end portions of their flanges-being superposed, a transom connecting said side, frames, a-bolster,-.and-

springs arranged between the end-portionsof the transom and the bolster, substantially-as set forth. I y Y Witness my hand this 9th dayof January, 1902, e

HERBERT R, KEITHL'EY, Witnesses: I I .GHA's. W. PARKER,

CLAUDIA M. BENTLEY. I