US2299420A

US2299420A - Locomotive

Info

Publication number: US2299420A
Application number: US304417A
Authority: US
Inventors: Essl Max
Original assignee: Baldwin Locomotive Works
Current assignee: Baldwin Locomotive Works
Priority date: 1939-11-14
Filing date: 1939-11-14
Publication date: 1942-10-20
Anticipated expiration: 1959-10-20

Description

Oct. 20, 1942. M. ESSL' LOCOMOTIVE Filed Nov. 14, 1939 6 Sheets-Sheet l I l I J IIIIIIIIIIlIIIIIIIIIIIIIIIIIIIIIIII IIIIIlIIIIIIIIIIII/IIIIIIIIIIIVIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII,

IIIIIIIIIIIIIIIIIIIII" I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIJ H8) l lgll w llllll INVENTOR Plnx E551.

i: Li:

il v ATTORNE Oct. 20, 1942. 555] 2,299,420

LOCOMOTIVE Filed Nov. 14, 11939 6 Sheets-Sheet 2 -m|. m, ,111 VIIIIIIIIIIIIIIIIIIIIJTIIIIIIIIVII r1111) IIIIIIIIIIIIIIIIIIWIIIIIIIIIIIIIIIIIIIIIIIIIIII11114I ATORNEY Get. 20, 1942. ESSL 2,299,420

LOCOMOTIVE Filed Nov. 14-, 193's 5 Sheets-Shet s Oct. '20, 1942. M. ESSL I LOCOMOTIVE Filed NO\(. 14, 1939 6 Sheets-Sheet 6 Patented Oct. 20, 1942 UNITED STATES E ATENT QFFICE LOCOMOTIVE Application November 14, 1939, Serial No. 304,417

30 Claims.

This invention relates generally to locomotives and more particularly to Diesel electric locomotives of large horsepower for a relatively short length of locomotive.

A locomotive of the type herein disclosed employs a plurality of engine-generator units each disposed transversely of a main bed frame of a locomotive and extending a substantial distance across the width thereof, these units being disposed in relatively close side by side relation to each other and which, if desired, may be slightly spaced apart in a direction lengthwise of the bed frame. In such a type of locomotive the individual power units preferably include as a selfcontained part thereof an air cooled radiator for the engine cooling water, this radiator being placed preferably near an external surface of the locomotive super-structure. It is also preferable that the power units be individually removable in the event that major repairs are required on the power unit and in this event another unit may be substituted for the removed unit at any predetermined shop station along the railroad. However, it may not be desirable to require removal of a unit merely to make minor adjustments to or inspection of the power units and to this end I have provided an improved arrangement in such a compact locomotive whereby a man may pass from one end of the locomotive to the other end thereof and also preferably have access to the passenger cars through usual end Wall doors thereof.

It is one object of my invention to provide an improved combination of elements whereby a very effective walkway extends longitudinally of the locomotive, preferably substantially through the middle thereof, but without increasing the amount of space allotted to any given number of power units and at the same time insuring comfortable head room so that a man can walk conveniently through the locomotive as well as have ample room in which to inspect the power units or make minor adjustments thereof. The problem in connection with such a Walkway is especially troublesome in the type of locomotive hereof inasmuch as the power units and their auxiliary apparatus occupy substantially the entire width of the bed frame, while the vertical height of the super-structure is definitely limited by standardized clearances through tunnels and under bridges heretofore established on various railroads.

Another object is to provide an improved combination of the engine, radiator, air circulating fan and power unit so as to obtain not only a high degree of compactness together with efficient air circulation but also to insure a very desirable and improved relationship of this radiator and air circulating means to a structure for supporting the roof and side Walls of the locomotive super-structure.

A further object is to provide an improved form and arrangement of external wall supporting structural members correlated with respect to the power unit so as to insure utmost simplicity in arrangement together with maximum strength and rigidity, it being understood that maximum simplicity is of great value not only from the standpoint of reducing manufacturing and maintenance costs, but also of reducing complications in a space which already contains a highly concentrated amount of power apparatus.

Still another object is to provide an improved cabinet section for electrical equipment such as an auxiliary generator and other usual electrical accessories, it being particularly desirable to have these electrical elements not only readily accessible by a man standing on the Walkway but also to have said elements related in a simple and durable manner to the super-structure and in addition permit a simple and accessible driving connection from the power unit to the auxiliary generator.

An additional object is to provide an improved combination of elements for removably supporting the complete power unit and to provide improved means whereby the power unit and the external wall structure combined therewith may be bodily lifted as a unit from the locomotive frame in a simple and direct manner.

Other objects and advantages will be more apparent to those skilled in the art from the following description of the accompanying drawings in which:

Fig. l is a side elevation of a locomotive embodying my invention;

Fig. 2 is a section taken substantially on the line 2-2 of Fig. 1, but with the trucks omitted for the sake of clarity;

Fig, 3 is a fragmentary transverse section taken substantially on the line 33 of Fig. 10, parts of the power unit being omitted in order to show more clearly the structural elements for supporting the external surface walls of the super-structure,

Fig. 4 shows a modified arrangement for supporting the electrical auxiliary equipment whereby the accessories and its supporting member may be bodily removed as a self-contained unit;

Fig. 5 is an enlarged transverse section taken axially connected.

on the line 55 of Fig. 2, showing the means whereby the power units may be bodily lifted;

Fig. 6 is a perspective view of the super-structure frame work;

Fig. 7 is a longitudinal vertical section taken substantiallyon the line 1-1 of Fig. 2;

Fig. 8 is an enlarged fragmentary sectional view taken substantially on the line 8-8 of Fig. 2 showing an improved arrangement for supporting the power unit;

Fig. 9 is a longitudinal vertical section taken substantially on the line 99 of Fig. 2;

Fig. 10 is a horizontal section taken substantially on the line Il0 of Fig. 2;

Fig. 11 is an enlarged view, partly broken away, through one corner of a cylinder head to show the manner in which the lifting means is connected to the engine;

Fig. 12 is a sectional plan view taken substan: tially on the line l2|2 of Fig. 2;

Fig. 13 is an end elevation of the power units of Fig. 2 viewed from the engine end thereof;

Fig. '14 is a modified arrangement of the power units showing another form of walkway extending lengthwise of the locomotive;

Fig. 15 is a sectional plan view taken substantiallyon the line I l 5 of Fig. 14;

Fig. 16 is a side elevation of the power units taken substantially on the line l6l6 of Fig. 14; and

Fig. 17 is a fragmentary longitudinal vertical section of one of the upper corner connections between the super-structure frame and the radiator, taken substantially on the line Il-l! of Fig. 12.

A locomotive of the general type embodying my invention is diagrammatically shown in Fig. 1 as comprising a main bed frame I mounted upon preferably articulated driving wheel units 2 and 3 of any conventional or usual form in which the wheels are driven by a series of electric motors 4. Preferably each end of the locomotive is provided with a cab 5 which, if desired, may include compartments for usual locomotive accessories such as compressors, heating boilers, air circulating blowers for the driving motors or other usual apparatus. A series of preferably identical transversely disposed power units generally indicated at 8 extend preferably entirely between the two cabs 5,5 in relatively close side by side relation to each other and to the cabs.

Inasmuch as the various power units, and their respective superstructures, are preferably identical, it will suffice to describe only one unit in detail. As shown in Fig. 2, the power unit comprises an engine 9 generally of the vertical type such as a V-type engine or simple vertical type engine but both having their sets of cylinders in line and provided with a usual crankshaft to which a rotor of an electrical generator I0 is co- The stator casing of the generator is bolted preferably directly to the end of the usual engine frame so as to form a rigid integral part thereof. Supported at the end of the generator and driven from the shaft therein in anysuitable manner, as by gears, is a propeller type fan II, it being noted that the axis thereof is offset above the axis of the engine generator unit thereby allowing a fan of maximum diameter to be employed without any restriction from the bed frame I.

An engine water cooling radiator I2 is supported directly in front of the fan I by a pair of sheet metal combined air shields and supporting metal members are of arcuate form at their inner ends and are clamped to the end of the generator stator casing as by bolts l5, while the outer vertical edges of these members are connected preferably by flanges and bolts I6 to vertical water headers 11 and ll! of the radiator. As shown in Fig. 10, suitable lateral ribs or other reinforcing means l9 are secured along the sides of the brackets l3 and [4. The lower edges 20 of the bracket members, as shown in Fig. 2, extend to the lower end of the radiator headers and are spaced just above the upper supporting surface of the bed frame I while the upper straight edges 2! constitute supports for one side of my superstructure generally indicated at 22 to be described hereafter. The engine, generator, radiator, brackets therefor and blower all comprise preferably a self-contained unit which is supported upon bed frame I through any suitable preferably releasable connections which are specifically shown herein in Fig. 8 as comprising lugs 25 formed integrally with the generator stator casing and with the engine crank case on each side of the same. A suitable cushion preferably a piece of conical rubber 26 is received in a conical recess of lugs 25 and bears upon a suitable base 21 which is permanently secured in any suitable manner to the bed frame I. A stud 28 projects upwardly from base 2! to maintain lug 25 in its operative relation to the rubber cushion. The foregoing supports are placed preferably near the center of gravity of the engine and generator respectively thereby minimizing the number of supports required. This arrangement permits quick and easy disconnection of a power unit from the bed frame or reconnection thereto, while at the same time providing an extremely sturdy structural connection.

The foregoing engine-generator power units are duplicated in accordance with the total amount of power desired and these are placed in relatively close side by side relation to each other and, if desired, may be slightly spaced apart in a direction lengthwise of the bed frame thereby providing such degree of access between the units as may be required for inspection and minor repairs if necessary. It will be seen, however, from Fig. 12 that the space between the units represented by the distance 29 is of such extent that lengths of the engine-generator units thereby inbrackets I 3 and I4, Figs. 9 and 10. These sheet suring effective utilization of the floor space of the bed frame I. As is seen from Fig. 1, if all of the power units 8 were removed, the upper supporting surface of bed frame I would have a fiat car effect extending substantially without interruption between the two end cabs 5. However, when the power units are placed in position as shown and with all engines preferably on the same side, they form a longitudinally compact bank of transverse power units whose external super-structure roof and side walls are substantially contiguous with each other and with the external surface of the cab structures thereby providing a smooth continuous appearance of an integrated locomotive. Reference herein to transverse units means that the engines are positioned with their axes, i. e. crankshaft axes, extending transversely of the locomotive frame.

The super-structure for each unit comprises, as shown in Figs. 2 to 7, a pair of

angle irons

32 and 33 faced toward each other and each having an arched roof portion 34, a full height side portion 35 and. a short height side portion 36. The shape of these angle irons defines the contour of the external. super-structure wall and said irons are suitably connected by any number of

cross pieces

31, 38, 39 and 49 suitably spaced from each other and all welded together to form an integral unit, although it will of course be understood that any additional number of longitudinal bracing strips may be employed. To provide a suitable support for electrical accessories, Fig. '1, such as an auxiliary generator 4| and an electrical compartment box 42, a second longitudinal iron 43, Fig. 6, is supported from the main angle irons by vertical hanger strips 44 in transverse brackets 45. This structural unit is supported on and preferably forms an integral part of the power unit as clearly shown in Fig. 2. The angle iron brace 31 is supported upon and removably bolted to a longitudinal angle iron 46 secured along one end of the frame of engine 9 while angle iron member 40 is supported on top of the radiator headers I1 and I8 as shown particularly in Fig. 17, the brace 40 being secured to upper end closure plates 41 of the headers I1 and H! by studs and nuts 48. The transverse angle pieces 45 rest upon and are suitably removably bolted to upper straight edges 2|, Figs. 2 and 3, of the sheet metal brackets l3 and I4. A sheet metal sheathing 49, Fig. 2, may be suitably wrapped around and secured to the external contour of the

frame members

32 and 33 thereby forming the external wall of the super-structure for each individual unit. This external sheet metal wall 49 extends preferably for the full length of the long sides 35, Fig. 2, and for the full length of the short side 36, although, if desired, the sheet metal may continue down around over the radiator headers l1 and I8 with a suitable opening to allow air to flow through the series of radiator cores 50, Fig. 1'1. As is shown in Fig. 2, the external wall and frame structure therefor is slightly spaced from the upper supporting surface of bed frame I thereby permitting the supporting cushions 26, Fig. 8, to be freely operable. Regardless of the extent of the spacing 29 between the power units, the side and roof walls of each unit preferably overhang the same in a direction lengthwise of the locomotive with the result that the wall edges of adjacent units are in contiguous relation to each other.

The auxiliary generator 4| is preferably located, as shown in Fig. 7, at one end of the short side 22 of the super-structure frame and is driven preferably by belt and pulleys 5| from the air blower I. The compartment box 42 may contain any of the usual electrical devices and accessories such as switches, circuit breakers. etc. The blower may circulate air through suitable louvres 49 formed in the wall 49 on the long side 35, Fig. 2, and thence over engine 9 and through the space between fan shields l3 and I4 and outwardly over radiator cores The radiator cores are of usual construction removably bolted to the end water headers.

To facilitate removal of each individual power unit, together with its super-structure 49, I preferably provide, as shown in Fig. 2, a pair of

stanchions

56 and 51 on one side of the engine-generator unit and a corresponding pair of stanchions on the other side. The pair of stanchions 56 are suitably bolted as at 59 to the generator III while the upper ends of these stanchions are laterally supported in a suitable bracket 59 bolted as at 69 to the vertical leg of angle iron portions 34, 3.4. The upper ends of stanchions 56 bear against the horizontal leg of angle iron member 39 which has a suitable opening 5|, Figs. 5 and 6, inregister with a similar opening in the sheet metal wall sheathing 49. The other pair of stanchions 51 are connected as shown in Fig. 11 to a cylinder head bolt through the medium of a threaded union 62. The upper end of these stanchions 51 are connected to the other cross member 38, Fig. 6, in the same manner as previously described for stanchions 56 and hence corresponding parts wherever shown are. given the same reference numerals.

To remove a power unit the nuts 28, Fig. 8, are removed and eye-bolts 63, Fig. 5, are inserted into the threaded sockets in the upper ends of each of the four

stanchions

56, 51. A lifting crane is then connected into the series of four eye-bolts 63 and the whole power unit bodily lifted from the bed frame independently of all other power units. If for any reason it is desired to remove the covering from a power unit, the bolted connections of the frame structure 32 and 33- with the engine and radiator may be removed thereby allowing the entire wall structure to be removed as a unit. In the form of Fig. 2, the accessories would be removable with the super-structure frame, although in another form the accessories would remain with the power unit. The external wall structure as shown permits convenient and compact positioning of usual engine auxiliary devices such as a supercharger 65, anair filter 66 and exhaust mufllers 61 to be suitably connected to the en.- gine intake and exhaust manifolds and to be located immediately adjacent to the side walls and roof to one side of the longitudinal centerline of the locomotive. This is particularly useful in connection with the longitudinal exhaust mufllers 61, one being provided for each bank of cylinders of the V-type engine thereby allowing ample head room for a man as clearly shown in Fig. 2.

To provide a walkway through the locomotive so that a man may have access to the engines and to accomplish this walkway by a highly cooperative functional and structural relationship of the various elements involved soas to avoid the necessity of causing the power equipment or accessories thereof to be unduly restricted, cramped or in any way limited or interfered with, I have in the specific aspect of the invention effectively utilized the power unit structure, preferably the generator HJ, by mounting on each side thereof a pair of cantilever walkway treads 19 and 1|, Figs. 2 and '1, supported by vertical plates 12. The treads 10 and 1| are in alignment with corresponding treads on adjacent power units thereby providing a continuous walkway throughout the entire length of the locomotive. Inasmuch as the treads are high up on the casing of the generator l0, it is seen that a man can easily step over the generator casings and this ease is further facilitated in a very effective and cooperative manner by the curvature of the casing. The walkway thereby easily extends over portions of the power units between their axial ends. To permit the operator to step down conveniently into the relatively small space between the adjacent units, I provide steps 15, Fig. 2, on each side of the engine frame and support the steps thereon in a cantilever manner similarly to the treads 10 and 1|. The steps on adjacent sides of adjacent units are in horizontal alignment in the same manner as thewalkway'treads 'III' II there'- by providing a complete 'step of adequate area. All of the steps and walkway treads are slightly spaced apart at their adjacent edges to permit ease in removal or replacement of a power unit. Also as shown in Fig. 2, a man can if he desires easily lean over the engines while standing (Fig. 2) on the main longitudinal walkway and from this position he can also readily reach the electrical accessories on the opposite side of the super-structure.

Fig. '4 modification-Instead of having the electrical accessories such as auxiliary generator M and accessory box 42 supported directly by the legs 36, Fig. 6, of the super-structure frame, I have provided an intermediate frame 81 for supporting the auxiliary generator and accessory I box independently of the'mainsuper-structure. This intermediate frame comprisestwo longitudinal angle irons 16 and 'I'I connected at each end by transverse angle iron pieces 18. Vertical corner angle irons 19' are 'conected at each end by upper transverse angle irons '89 and by an outside longitudinal angle iron BI. This structure is preferably welded together to form an integral unit while a base plate'82 is welded to the underside of the members 18,"l1and 18. V The main super-structure frame has relatively short vertical portions 83 connected by a longitudinal angle iron 84. Shortened dependent strap hangers 85 are provided corresponding to'hangers 44 of Fig. 6. The intermediate unitary frame is suitably removably connected to the main' superstructure preferably by bolts extending through the abutting horizontal legs of angle irons BI and 84, While the strap hangers 85 are bolted as at 86 to the welded members 80 and T9 at the corner juncture thereof. The foregoing combined 'main super-structure frame and intermediate accessory frame is then secured to the brackets I3 and I4 in the same manner as previously described for Fig. 2. 7 V 7 e Modifications of Figs, 14-16.-In this arrangement the individual duplicat power units each have an engine 90 and generator 9 I mounted upona preferably integral base generally indicated at 92. The engine and generator are slightly axially spaced apart so that the generator and engine shafts 93 and 94 may be axially connected through a suitable bolted flange connection. 7 The auxiliarygenerator 95 is mounted upon a suitable bracket secured to the top of generator 9I." Belt and pulleys generally indicated at 96 are driven fromthe shaft of generator 9| and drive both the generator 9| and an air circulating fan 91. An engine water cooling radiator 98 provided with lower and upper water headers 99 and I are connected in any usual manner with the water jackets of the engine 0371-.- inders. Such a usual water connection is also employed in the preferred form of Fig. 2. VThe radiator 98 rests upon and is removably secured to a raised support I IJI extending upwardly from one end of base 92. Th engine isof the same general type as shown in the preferred form of Fig. 2, although in this modification the exhaust manifolds I83 for each set of V-cylinders is connected as shown in Fig. 15 by angled outlets I04 and I to vertical exhaust pipes or mufilers I06 and I91 which perform the additional function of constituting corner posts for the super-structure roof and side walls. The vertical exhaust pipes I96, I 01 discharge as shown in Fig. 14 through suitable openings I88 while transverse arched angle irons I89 connect the exhaust pipes to the upper radiator header I08. A suitable sheet metal wall covering extends vertically along each side of the super-structure and acro ss the arched top. Usual louvers are provided in the external wall III] on the right side of Fig. 14 thereby permitting air to be drawn across the engine by blower 91 and discharged across radiator 98 to the outside. The individual power units with their self-contained super-structure and external wall portions may b bodily removed or replaced in the manner shown in my copending application Serial No. 258,689, filed February 27, 1939. The detailed structure and mode of operation of this connecting and removal means need not be described in detail here as it is the same as disclosed in my said copending application. It will suflice to point out that certain of the operating mechanism of such removal means is diagrammatically indicated in Fig. 16 at II2. A

In this modification of Figs. 14-16, I am still able to effectively provide a longitudinal central walkway through the locomotive so that the walkway traverses the enginegenerator axis intermediately of the ends thereof, specifically at the inner end of the engine adjacent the generator in the same broad manner as is done in the preferred form of Fig. 2 As seenin Fig. 14, a pair of angle irons I I3 is connected to the generator and engine frames to support the walkway tread H4. The tread for each power unit extends as shown in Fig. 15 only for the width of each power unit, but by reason of being located down between the engineand generator it is possible to have the walkway extend uninterruptedly into alignment with the walkway of the adjacent units. If desired, vertical walls H5 and asmall horizontal wall IIB may be provided adjacent the generator to avoid any possibility of the operator being injured by the revolving generator armature. The various treadways and walls therefor may be welded or otherwise suitably removably bolted to the angle irons I I3 and to the generator casing. Each end of the unit walkway II4 may be provided with partial steps II! and. I I8 dependently supported by the longitudinal treads I I4. The adjacent steps II! and H8 of adjacent units together comprise a, complete step of adequate area.

From the disclosure herein it is seen that .I have provided an extremely compact locomotive capable of producing a large amount of power in a minimum length and this is accomplished while still permitting reasonable access to theengines as well as allowing convenient passageway throughout the length of the locomotive. This passageway and accessibility is in combination with a super-structure and accessory arrangement of great simplicity and durability having low cost of initial manufacture and maintenance but without in any way sacrificing any desirable cooperative relationship of the Various parts.

It will of course be understood that various changes in detailsof construction and arrangement of parts may be made by those skilled in the art without departing from the spirit of the invention as set forth in the appended claims.

I claim:

1. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving an electric generator disposed at one end of the engine, said power units being disposed with the engine crankshaft axes extending transversely of the frame and supported on top of said bed frame in side by side relation to each other so as to form a longitudinally compact bank of transverse power units, and means forming a walkway extending longitudinally through the locomotive over portions of the power units with the lengthwise axis of said walkway extending substantially at right angles to said crankshaft axes.

2. A locomotive comprising, in combination, a bed frame mounted up'on driving wheels, a plurality of individual power units each having an internal combustion engine provided With a crankshaft for driving an electric generator disposed at one end of the engine, said power units being disposed with the engine crankshaft axes extending transversely of the frame and supported on top of said bed frame in side by side relation to each other so as to form a longitudinally compact bank of transverse power units, and means forming a passageway extending longitudinally of the locomotive substantially centrally thereof and the lengthwise axis of said passageway traversing the power units between their axial ends.

3. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving an electric generator disposed at one end of the engine, said power units being disposed with the engine crankshaft axes extending transversely of the frame and supported on top of said bed frame in side by side relation to each other so as to form a longitudinally compact bank of transverse power units, and walkway treads supported by each power unit as an individual part thereof and arranged so that the walkway treads of the adjacent units are disposed with respect to each other so that an operator may walk through the locomotive longitudinally thereof with the lengthwise axis of said walkway extending substantially at right angles to said crankshaft axes.

4. The combination set forth in claim 3 further characterized in that said walkway treads are supported as cantilevers projecting outwardly from each side of the units.

5. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving an electric generator disposed at one end of the engine, said power units being disposed with the engine crankshaft axes extending transversely of the frame and supported on top of said bed frame in side by side relation to each other so as to form a longitudinally coinpact bank of transverse power units, and unit walkway sections individually supported by the respective generators and collectively constituting a walkway extending longitudinally through the locomotive with the lengthwise axis of said walkway extending substantially at right angles to said crankshaft axes. I

6. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving an electric generator disposed at one end of the engine, said power units being disposed with the engine crankshaft axes ex tending transversely of the frame and supported on top of said bed frame in side by side relation to each other so as to form a longitudinally compact bank of transverse power units, and means forming a walkway extending longitudinally through the locomotive and having unit walkway sections supported by and projecting laterally from each side of the generator below its uppermost portion, with the lengthwise axis of said walkway extending substantially at right angles to said crankshaft axes, said walkway sections of adjacent units being disposed in substantially the same horizontal plane to allow a man to walk through the locomotive by partially stepping over the upper portion of the generators.

'7. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units for supplying power to drive said wheels and each unit having an internal combustion engine provided with a crankshaft for driving an electric generator disposed at one end of the engine and an engine water cooling radiator, a combined blower shield and radiator support connected to one end of the power unit for supporting the radiator and directing air flow thereover, and a rotary blower for circulating air over said radiator, said power units with their individual radiators and supporting air shields being supported on top of said bed frame in side by side relation to each other with the crankshaft axes extending transversely of said frame so as to form a longitudinally compact bank of transverse power units each having its oWn stream of radiator cooling air.

8. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving an electric generator disposed at one end of the engine, engine cooling radiators, one for each unit, means for upporting said radiators respectively by the power units at the generator end thereof in laterally spaced relation thereto to provide a self-contained structure therewith, air circulating means including unit blowers disposed between the radiator and generator of each unit, and a super-structure extending over and forming a self-contained part of each unit by being supported at one side by the unit engine and at the other side by the radiator supporting structure, said self-contained units being disposed on top of said bed frame in side by side relation to each other with the crankshaft axes extending transversely of said frame.

9. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving an electric generator disposed at one end of the engine, said power units being supported on top of said bed frame in side by side relation to each other with the crankshaft axes extending transversely of said frame, each unit having a radiator located at one side of the locomotive near the bed thereof, means forming a walkway extending longitudinally through the locomotive near the central portion thereof, and means for supporting electrical accessories above the plane of said radiators and laterally of said walkway so as to be accessible from said walkway and provide headroom therefor.

10. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine and an electric generator disposed at one end of the engine, said power units being transversely supported on top of said bed frame in side by side relation to each other and with the engines of the respective units located on the same side of the locomotive, each unit having its own superstructure comprising structural side and roof members supported by the engine and by the generator, roof and side wall sheathing supported on said structural members so that the sheathing for adjacent units is in substantially contiguous relation with each other to form substantially longitudinally continuous external roof and side wall of the locomotive.

- 11. The combination set forth in claim 10 further. characterized in that said super-structure includes a frame for electrical accessories disposed along one side of the super-structure.

'12. Th combination set forth in claim 10 further characterized in that said super-structure includes a frame for electrical accessories disposed along one side of the super-structure and forming a downwardly extending continuation thereof and being separable therefrom.

13. The combination set forth in claim 10 further characterized by the provision of stanchions connected to the power unit and extending upwardly to the roof of said super-structure whereby each power unit may be bodily lifted.

14. The combination set forth in claim 10 further characterized by the provision of stanchions connected to the power unit and extending upwardly to the roof of said super-structure whereby each power unit may be bodily lifted together with the super-structure and its roof and side wall sheathing while the remaining units remain in position.

15. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine and an electric generator disposed at one end of the engine, said power units being transversely supported on top of said bed frame in side by side relation to each other, means for independently removably connecting said power units to the bed frame, and means for bodily lifting said units independently of each other including stanchions connected directly to the generator and to the engine for vertically lifting the same from the bed frame while the other power units remain in position.

16. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine and an electric generator disposed at one end of the engine and secured thereto to form a unitary structure therewith, said power units being disposed with the engine axes transversely of the frame and supported on top of said bed frame in side by side relation to each other, and means for supporting said unitary structure on said bed frame including releasable supporting means connected to the engine in a plane substantially containing the center of gravity of the engine and other releasable supporting means connected to the generator in a plane substantially containing the center of gravity of the generator.

17. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving a generator disposed at one end of said engine, said power units being disposed with the engine crankshaft axes transversely of the frame and supported on top of said bed frame in side by side relation to each other, means whereby each power unit has its own roof structure, means for independently removably connecting said power units to the bed frame, and vertical lifting members accessible from the top of said roof and connected to the generator and to the engine for bodily lifting said units and their respective roofs while the other power units remain in position.

18. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving a generator disposed at one end of said engine, said power units being disposed with the engine crankshaft axes transversely of the frame and supported on top of said bed frame in side by side relationv to each other, means whereby each power unit has its own roof structure, means for independently removably connecting said power units to the bed frame, and means for bodily lifting said units and their respective roofs including stanchions connected to the generator and to the engine and extending entirely to the respective unit roofs so as to be accessible from the top thereof whereby any one unit may be removed while the other power units remain in position.

19. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving a generator disposed at one end of the engine, said power units being disposed with the engine crankshaft axes transversely of the frame and supported on top of said frame in side by side relation to each other, and means including a conical support and recess one of which is connected to the unit and the other to the bed frame for supporting said unit thereon, the axis of said conical support and recess extending vertically whereby the unit may be bodily moved down on to said support and be centered thereon by the conical action.

20. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, 2. plurality of individual power unitsfor supplying power to drive said wheels and each unit having an internal combustion engine provided with a crankshaft for driving a generator disposed at one end of the engine, said power units being supported on said bed frame in side by side relation to each other with V the crankshaft axes extending transversely of said frame, engine cooling radiators one for each unit, each unit having crankshaft for driving a generator disposed at,

one end of the engine, said power units being supported on said bed frame in side by side relation to each other with the crankshaft axes extending transversely of said frame, engine cooling radiators one for each unit, each unit having means for circulating air over its individual radiator including a blower and walls form n an air duct through which the blower circulates the air, means for individually supporting said air ducts by their respective power units including duct supporting connections with the generators of said respective units, and means for supporting the power unit radiators by their respective ducts.

22. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving a generator disposed at one end of the engine, said power units being supported on said bed frame in side by side relation to each other with the crankshaft axes extending transversely of said frame, engine cooling radiators one for each unit, each unit having means for circulating air over its individual radiator including a blower and walls forming an air duct having a lateral inlet through which the blower circulates the air, means for individually supporting said air ducts by their respective power units including duct supporting connections with the generators of said respective units, and means for supporting the power unit radiators by their respective ducts.

23. The combination set forth in claim 20 further characterized in that each unit has its own roof section, means including said duct walls for supporting each roof section by its own power unit, and means whereby each power unit together with its duct, blower and roof section, all formed as a self-contained part of the power unit, may be bodily removed from the locomotive frame.

24. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving a generator disposed at one end of the engine, said power units being supported on said bed frame in side by side relation to each other with the crankshaft axes extending transversely of said frame, engine cooling radiators one for each unit, each unit having means for circulating air over its individual radiator including a blower and walls forming an air duct having a lateral inlet through which the blower circulates the air, means for individually supporting said air ducts by their respective power units including duct supporting connections with the generators of the respective units, means for supporting the power unit radiators by their respective ducts, and means whereby each power unit may be removed from the locomotive together with its blower, duct, roof section and lateral air opening which communicates with the duct, all formed as a selfcontained part of the power unit.

25. A locomotive comprising, in combination, a frame mounted upon driving wheels, a plurality of individual power units for supplying power to drive said wheels and each unit having an internal combustion engine provided with a crankshaft for driving a generator disposed at one end of the engine, said power units being supported on top of said frame in side by side relation to each other with the crankshaft axes extending transversely of said frame, means for independently removably connecting said power units to the frame, means whereby each power unit has its own roof structure, and vertical lifting members connected to each power unit and operative when a lifting force is applied from the top of the roof structure of an individual unit for bodily lifting the unit and its roof while the other power units remain in position.

26. A locomotive comprising, in combination, a frame mounted upon driving wheels, a plurality of individual power units for supplying power to drive said wheels and each unit having an internal combustion engine provided with a crankshaft for driving a generator disposed at one end of the engine, said power units being supported on top of said frame in side by side relation to each other with the crankshaft axes extending transversely of said frame, means for independently removably connecting said power units to the frame, means whereby each power unit has its own roof structure, and vertical lifting members permanently connected to each power unit and to the individual roof structures and operative when a lifting force is applied from the top of the roof structure of an individual unit for bodily lifting the unit and its roof while the other power units remain in position.

27. A locomotive comprising, in combination, a frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with cylinders and a crankshaft for driving an electric generator disposed at one end of the engine, said power units being transversely supported on top of said frame in side by side relation to each other with the crankshaft axes extending transversely of said frame, means for independently removably connecting said power units to the frame, and means for bodily lifting said power units independently of each other including stanchions connected directly to the power unit at axially spaced points thereof and at least certain of said stanchions having connection with the upper end of the engine cylinder.

28. A locomotive comprising, in combination, a bed frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine provided with a crankshaft for driving a generator disposed at one end of the engine, said power units being supported on top of said bed frame in side by side relation to each other with the crankshaft axes extending transversely of said frame, means for independently removably connecting said power units to the frame, means for bodily lifting said power units independently of each other including stanchions connected directly to the power unit, a roof structure operatively connected to said stanchions so as to be bodily removable as a unitary part of a power unit upon removal thereof, and a detachable lifting element adapted to be connected to said stanchions at a point adjacent said roof structure.

29. A locomotive comprising, in combination, a frame mounted upon driving wheels, a plurality of individual power units for supplying power to drive said wheels and each unit having an internal combustion engine provided with a crankshaft for driving a generator disposed at one end of the engine, said power units being supported on top of said frame in side by side relation to each other with crankshaft axes extending transversely of said frame and the engines of the respective units being offset to one side of the locomotive, each power unit having its own superstructure including a roof section supported by the power unit in substantially symmetrical relation to the centerline of the locomotive, and vertical lifting means connected to said offset power unit and to said symmetrically located roof section for bodily lifting the power unit and roof together as a unitary structure while the remaining units and their respective roof sections remain in position on the locomotive frame.

30. A locomotive comprising, in combination, a frame mounted upon driving wheels, a plurality of individual power units each having an internal combustion engine and a generator disposed at one end of the engine to be driven thereby, said power units being transversely supported on top of said frame in side by side relation to each other and the engines of the respective power units being offset to'one side of the locomotive whereby the frame is loaded eccentrically by the power units, each power unit having a second generator offset on the other side of the centerline of the locomotive thereby effecting a counterbalancing action to the offset engine unit, and each power unit having driving connections between its engine and the second generator.

MAX ESSL.