US2084861A - Locomotive construction - Google Patents

Description

June 22, 1937.

L. P. MICHAEL ET AL LOCOMOTIVE CONSTRUCTION 4 Sheets-Sheet 1 Original Filed Nov. 10, 1934 .Z'nven/ors Loren R Mic/me! MOW/am 0. Aisha.

June 22, 1937. L. P. MICHAEL ET AL LQCOMOTIVE CONSTRUCTION Original Filed Nov. 10, 1934 4 Sheets-Sheet 2 Invenfors Aoren P. M/c/me/ /'///Z?m, 0. flake.

i. wwmi mu June 22, 1937. L. P. MICHAEL ET AL LOCOMQTIVE CONSTRUCTION Original Filed Nov. 10, 1934 4 Sheets-Sheet s June 22, 1937.v

| P. MICHAEL ET AL 2,084,861

LOCOMOTIVE CONSTRUCTION Original Filed Nov. 10, 1954 4 Sheets-Sheet 4 101 J0 yen fans 100 Lore/7 F? M/k-bae/ W/V/fzrm 0. fiis/ie Patented June 22, 1337 J ATE OFFICE LOCOMOTIVE CONSTRUCTION Original application November 10, 1934, Serial No. 752,426. Divided and this application August 12, 1935, Serial No. 35,712

8 Claims.

This invention relates to railway rolling stock and consists particularly in novel locomotive underframe construction.

A recent development in railroad locomotive construction has involved the use of a framing resembling the usual car structure, including spaced bolsters and trucks, with one or more engines intermediate the bolsters and having direct driving connections with the truck axles.

Thev power plant may be high pressure condensing steam engines with the cylinders arranged vertically and requiring relatively small boilers provided with condensers, allmounted onthe one locomotive frame, or the power plant may comprise steam turbines, preferably disposed longitudinally of the locomotive, and it is within they scope of the invention to utilize internal combustion engines or motors similarly arranged.

This application is directed to various novel features of the underframe construction, and is a division of an application Serial No. 752,426, filed November 10, 1934.

An object of the present invention is to provide means for satisfactorily supporting the power plant in a locomotive of the above type.

Another object is to construct the underframe so as to accommodate the drive shaft between the power plant and truck axle gears.

Another object is to construct the underframe so as to provide reservoirs for an ample supply of fuel.

These objects and other more detailed objects hereafter appearing are attained by the structure illustrated in the accompanying drawings in which Figure l is a top view of the left longitudinal half of a locomotive underframe embodying the invention.

Figure 2 is a side view of the structure in Figure 1 and showing one of the trucks.

' Figure 3 is a vertical longitudinal section taken on the line 3-3 of Figure 1, the engine being shown in elevation.

Figure 4 is an end view of the underframe and truck and shows a portion of the pilot.

Figures 5, 6, and '7 are vertical transverse sections taken on the corresponding section lines of Figure 1.

Figure 8 is a vertical longitudinal section'taken on the line 8-8 of Figure 1.

Figure 9 is a partial top view of an underframe and truck embodying a modification of the invention, the upper half showing the underframe, the lower half showing the truck.

Figure 10 is a side view of the same.

Figure 11 is a vertical transverse section taken on the line ll-ll of Figure 10.

Figure 12 is a vertical longitudinal section taken on the line |2|2 of Figure 10.

Figures 1 to 8, inclusive, illustrate an underframe formed as an integral cast metal unit and including side sills I, bolsters 2, center sills 3 and 4, transverse members 5 and 6, and arcuate end sills 1. The portions 3 of the center sills extend parallel between the bolsters and are of Z-section with their bottom flanges projecting inwardly. The portions 4 of the center sills at each end between bolster 2 and transverse member 5 extend diagonally inwardly and then extend longitudinally from member 5 to member B and end sill l. Bolsters 2 have center plate elements 8. The end portions of the underframes between the bolsters and end sills are arranged for mounting the boilers, 'cabs, and.- auxiliary equipment (not shown).

Mounted on the inwardly projecting bottom flanges 9 of center sills 3 by means of the bolts I 0 are a pair of engines, generally indicated at A and B, and each including the blocks and bases I I and heads I2, each engine having eight cylinders. Imperforate webs I3 connect the lower edges of the vertical web portions of each center sill and the adjacent side sill between the bolsters, and the spaces formed thereby are closed at their tops by plates l4 welded to the top edges of the center sill, side sill, and bolster vertical webs and the intermediate flanged ribs Ma to form storage reservoirs i5 for fuel or other fluids. A transverse tie l6a connects the center sills 3 between the engines A and B.

The underframe is supported on a pair of fourwheel trucks, as shown in Figures 2 and 4. Each truck comprises framing wheel pieces l6, transverse end structures and IS, an intermediate transom 20, and wheeled axles 31 received at their ends in roller bearing journal boxes 39. Each truck carries the underframe through a three-point support comprising the pivot 3| on truck end member I! and the rollers 32 resting on the truck wheel pieces. Underframe bolster 2 has a. center bearing structure 8 engaging the truck pivot 3| and diagonal lateral motion seats 36 resting on and cooperating-with the rollers 32. The outer end structure IQ of the truck carries the pilot 22 and the drawbar and coupler mechanism 29.

The power plants are connected to the respective truck axles by means of flexible shafts 54 through suitable gearing, not shown. The truck is more fully described and claimed specifically in the above mentioned copending application Serial No. 752,426.

In Figures 9 to 12 is shown a modified! form of pivotal connection of the truck with the body underframe. The truck includes wheel pieces 99 and a transverse end member I having a depending middle part including the pivotal center bearing attachment ltll. The underframe bolster I02, corresponding to the bolster 2 in Figure 1, has a bracket I03, braced by ribs I04, depending from its central portion into the recess formed in the upper surface of the truck end member I00 and has the body center bearing I05 for cooperating with the truck pivot llll. Bracket 103 also includes an'aperture N06 for receiving-the drive shaft III! which passes above 1 the center bearings in this form.

The described underframe is rigid, strong, and durable throughout and properly reinforced and shaped in its various parts for supporting the locomotive body and equipment without embodying excessive metal and restricted areas of metal concentration which are incidental in built-up underframes.

The invention is not limited to theforms shown, but may be modified in various respects as will occur to those skilled in the art, and the exclusive use of all such modifications coming within the scope of the appended claims is contemplated.

We claim:

1. In a railway vehicle underframe, a relatively shallow forward portion for overlying a vehicle truck, and a relatively deep portion extending inwardly from said shallow portion and including a center sill member, a side member, a bolstermember, a transverse member spaced from said bolster member, and vertically spaced webs connecting said members and forming a fluid storage reservoir therewith said structure comprising an integral unit arranged to support an engine inwardly of and below the level of said shallow forward portion.

- 2. In "a railway vehicle underframe, spaced center sills arranged for mounting vehicle driving engines between them, bolsters, side sills, and pairs 'of vertically spaced webs, each pair connecting one each of .said side and center sills and said bolsters, said webs and members forming fuel reservoirs at the'sides of said center sills and extending below the level of the bot-.

zontal drive shaft from the engine, and center bearing structure .on thegrecessed part of said bolster.

4. In a railway vehicle underframe, structure for mounting anengine beyond the end of a supporting truck with its crank shaft below the level of the top of said'truck, and a bolster having a center bearing'element on itsunder surface, there being a recess in said bolster above said element for receiving a substantially horizontal drive shaft from the engine.

5. In a railway vehicle underframe, center sills having shallow forward portions arranged to overlie a supporting truck and having relatively deep portions extending a substantial distance below the level of the top of such a truck, side sills spaced from said center sills, webs extending from the lower parts of the deeper portions of said center sills upwardly and outwardly to said side sills, and transverse members cooperating with said sills and webs to form liquid reservoirs.

6. In a railway vehicle underframe, a portion for overlying a supporting truck, a portion for supporting an engine with its main crank shaft adjacent the level of the axles of said truck, said underframe including a bolster provided with an opening adjacent said level to permit the passage of said crank shaft therethrough.

7. In a railway vehicle underframe, spaced bolster and transom upright elements, spaced center sills and side sills extending from bolster to bolster and being of substantially increased depth throughout their middle portions, an engine carried by said center sills and located in part below the tops thereof, and projecting upwardly above thesame and webs between the t'ops of said side sills and the tops of the adjacent center sills and webs between the bottoms of said side sills and the bottoms of the adjacent center sills, said Webs forming the top and bottom walls and said sills and elements forming the end and side walls of reservoirs located at opposite sides of said engine.

8. In a railway vehicle, an underframe including a relatively shallow portion for overlying a supporting truck and also including a bolster having structure arranged for pivotal support on an end portion 'of the truck, an engine mounted on said underframe on the side of said bolster opposite said shallow portion, and a drive shaft for connecting said engine and the axlesof said truck and extending beneath said structure and said shallow portion.

LOREN P. MICHAEL. WILLIAM O. ASHE.

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