US870769A - Locomotive. - Google Patents

Description

PATENTED NOV. 12, 1907.

J. E. FRIERMOOD.

LOGOMOTIVE.

APPLIOATION FILED JULY 12, 1906.

3 SHEETS-SHEET 1.

erm/00d guna/wko@ No. 870,769. PATENTBD NOV. l2, 1907.

J. E. FRIERMOOD.

. LOCOMTIVB.

PPLIOATION FILED JULY 12, 1906.

; 3 SHEETS-SHEET 2. Z0

MM x t No. 870,769. PATENTED NOV. l2, 1907.

J. E. FRIERMOOD LOGOMOTIVB.

APPLICATION FILED JULY 12, 1906.

8 SHEETS-SHEET 3.

@1.44 awww JOHN EARL FRIERMOOD, OF EVERETT, WASHINGTON.

LOCOMOTIVE Specification of Letters Patent.

Patented Nov. 12, 1907.

Apolicatiou filed July 12.1906- Sril N- 325.913.

. in which motion is transmitted from the engine piston- Ito the driving axles through-the medium of interposed gearing. Locomotives of this type are ordinarily emi ployed for heavy hauling, as for instance, in logging' and'mining operations, and while capable of exerting great tractiveforce, are inefficient for several reasons.

`1n the first-place, being primarily work engines, they are geared for low speed, and are incapable of high speed', even when running light, as for instance, when returning with empty cars to the point of loading. `Furthermore, the gears are subjected to excessive wear both by reason of the character oi the gear mountings and also by reason of the fact that the gearing is in action evenwhen the locomotive is running down grade with the kthrottle closed. In addition to these inefficiencies, geared locomotives of some makes employ fiexible line shafts, the strains on which are excessive,

f particularly in rounding curves.

Having in mind these commonly recognized deficiencies, the object of my invention is to produce a geared locomotive', including provision for reorganizing the gearing and for totally disconnecting the same, in order `that the locomotive may be geared low for a .heavyload or steep grades, geared high for making quick return runs with fempties, or thrown entirely out 'of gear to save the wear and tear on the parts when `running down grades.

Another object or' the invention is to provide. valvecontrolled, fluid-operated gear controlling mechanism whereby the changing of the gearing, as well as its connection and disconnection, will be under the control oi the engineer, but accomplished by fluid pressure.

A still further object oi the invention is to reduce the i wear and strains and to avoid any tendency of the Vtrucks toV climb the rails, by mounting the driving gmrs ori the engine frame and the driven gears on the driving i axles, and by providing intermediate gearing including tional elevation of a locomotive constructed in accordance with my invention. Fig. 2 is a side elevation of one of the trucks, the adjacent portion of the engine frame and certain elements of the gearing. Fig. 3 is a vertical section designed more particularly to show the mounting for the shaft of the shiftable gear Wheel. Fig. 4 is a sectional elevation designed to show the relation of the engine frame, the front truck, and the associated gearing. Fig. 5 is a vertical section of the front truck and associated parts, and showing more particularly the arrangement of the gearing and the gear controlling mechanism, the gearing being shown disconnected. Fig. 6 is a sectional elevation with the parts geared for high speed, and Figs. 7 and 8 are detail sectional views of the gear controlling valve.

Y Each part is designated by the same reference character in all of the views.

The locomotive is of the double-ended'type, and includes a boiler 1 and a cab 2, of usual or preferred construction, and an engine frame 3 preferably including 'upper and lower I- beams 4 and 5 located at each side of the locomotive. The engine frame is carried by V:front vand rear trucks 6 and 7, in any suitable manner,

brackets 8 being secured to the front ends of the upper I-beams 3 and resting upop springs 9 interposed between the brackets and the upper side bars 10 of the trucks to absorb the vibration of the latter, see Figs, 4 and 5.

The side framesll and 12 of each truck are provided, as usual, with vertical guides 13 in which are slidably mounted the journal boxes 14 o the front and rear driving axles 15 and 16. At the outer ends of the axles are carried the track wheels 17, the wheels at each side of the truck being connected by a coupling rod 18. Keyed or otherwise secured on the axles l5 and 16 are spur gear Wheels 18 and 19 of different diameters, either of which is designed to be engaged and driven by a shiftably mointed intermediate gear 20. For convenience of description the gears 18 and 19 will be referredqtdas the high and low speed axle gears and the gear 20 as the shitable intermediate gear. Since the gear l20-is designed to mesh with and drive the gears 18 and 19.

rigid with the axles, it is necessary to vmount the gear- 20 on asupport which will move` With the axles asthe positions of the latter vary with respect to the engine .1.00 Iframe, particularly in passing over a poor road bed or For this reason the mounting for the" plemental boxes 23 carried. by-the driving axles at the inner side of the gears, see Figs. 4, 5 and 6.

Above the beams, and spaced therefrom, are a pair of horizontal plates 24 and 25 likewise supported from 4 the boxes 1.4 and 23. The I-beams and plates are provided with longitudinal guides 26 between which reciprocate a pair of sliding boxes 27 and 28 in which is journaled a shiftable shaft section 29 to which the shiftable gear 20 is keyed. Thus, while the gear 2() is shiftshaft 34 journaled in the brackets 8 at opposite sides of the locomotive and provided with crank wheels 35 and eccentrics 36, sce Fig. 4 It will be noted that the non-shiftable section 30 of the intermediate shaft is supported by the engine frame, while the shiftable section 29 of said shaft is supported from the axles. It will be evident, therefore, that the flexible coupling 31 between the shaft section not only permits the shifting of the section 29, but also absorbs the relative vibration of the axles and engine frame in order to preventsuch vibration, when traversing an uneven piece of track or rounding curves, from racking the gearing, the gears 32 and 33 moving together with the engine frame, and the gears 18, 19 and 20 moving as a unit with-the axles.

The shaft 34, which is the driving shaft of the mechanism, is connected by means of the crank wheels 35 and pitman 37 with cross-heads 38 movable on the guide 39. The cross-head 38 is connected to the double-ended piston rod 40 of a piston 41 reciprocating in a cylinder 42 secured to the side of the engine frame intermediate of the trucksiand preferably somewhat forward of the cab. These connections between the piston 41 and the front driving shaft 34 are of course duplicated between the piston and the rear driving shaft, see Fig. 1, the only difference being that the rear end of the piston rod is longer than the front end thereof because of the greater interval between the cylinder and the rear driving shaft, the rod being therefore provided with an intermediate cross-head 43 supporting the piston rod at a point intermediate of the rear cross-head 38 and the cylinder.

The cylinder 42 receives stealn from the dome of the boiler through a steam pipe 44 and is controlled, as usual, from the throttle, which also'serves to control the engine mounted at the opposite side of the locomotive, it being understood that the cylinders and the connections thereof with the front and rear driving shafts, are the same at both sides of the structure. 1t will also be understood that the cylinder valves are operated by valve gears dl'iven in the usual manner from the cccentrics 36 on the front driving shaft. It will now be seen that the front and rear driving shafts-are driven from the engines at opposite sides o1' the locomotive and are geared to the driving axles through the medium of gearing which may be reorganized for high or low speed or totally disconnected from the axles, and which comprises two units and an intermediate flexible coupling, one unit being mounted on the engine frameand the other on the axles so that relative vibration of the axles and frame is absorbed by the flex ble coupling and not by the gears, thus eliminating the greatest element of wear and avoiding the torsional strains usually incidental to the operation of geared locomotives. In addition to this novel arrangement of the gearing, I have provided means for shifting the gear 20 in a direction transverseto its axis for the purpose of presenting it in mesh with the gear 18 for high speed, the gear 19 for low speed, or in an intermediate disconnected position in order to avoid wear incidental to the operati-on of the gearing in descending grades, vand also to enable the driving mechanism to be instantly disconnected from thevwheels when the brakes are applied. Attention may also be directed to the fact that this disconnection of the gearing minimizes the liability of the locomotive to climb the rails when descending grades at high speed or in the event of a runaway.

To accomplish the shifting of the gear 20, I connect to the opposite ends of each sliding journal box 27 and 28 a pair of toggles 45 and 46, see Fig. 5, having their outer ends connected to fixed parts 47. To'the knuckles of these toggles'are connected depending links 48 pivotally connected at their lower ends to oppositely extending arms 49 constituting elements vof a rocker which also includ es a rock shalt 50 provided at its inn er end with a crank 51 and journaled in suitable bearings 52'l secured to the under sides of the I- beams 31 and 32, see Figs. 3, 5'and 6. The crank 5]. is retained in an intermediate position by springs 52 and '53 opposed to the opposite sides of a slotted extension 54 of the crank 5l, sce Figs. 3 and 5, said springs encircling a guide rod 55 which is passed through the slotted extension 54 of the crank and retained at its opposite ends by lugs which serve as abutments for the outer ends of the springs. When the crank 51 is in the intermediate position shown in Fig. 5, where it is retained by the springs 52 and 53, as stated, the gear 2() will occupy its intermedi-.rte disconnected position, sutlcient clearance being afforded between said gom; and the gears 18 and 1.9v to prevent accidental engagement. If now, it is desired to gear the locomotive for high speed, it is simply necessary to throw the crank 51 to the left, as shown inFig; 6, which will swing the rocker to straighten out the toggles 45 and allow the toggles 46 to flex upwardly. This operation of the toggles 45 will shift the journal boxes 27 and 28 to the right, or front, thus moving the gear 20 into mesh with the gear 18. lf, on the contrary, it is desired to gear the engine for low speed, or great tractivc force, as for insta ucc lor hauling a heavily loaded train, the rocker 50 is swung in the reverse direction, either from its intermediate position shown in Fig. 5, or from its high speed position shown in Fig. G. The result of this revel-sc opcration of thc rocker will be to straighten out thc 1ogglcs 46 and flex the togglcs 45, thus shifting the gear 2() into mesh with thc large axle gear 19.

While the rocker may bc operated in a variety of ways, I have devised a simple and citcient forni ofv mechanism whereby-steam from the locomotive boiler may be utilized to shift the gearing, thev gearing bcb v adjacent axles, a support extended between and carried by said axles, a journal box slidable on said support, a shaft journaled in said box, an intermediate gear mounted on the shaft and movable with the box to engage either of the axle gears. and a connection between the intermediate gear and the driving mechanism.

1l. ln a geared locomotive, the combination with an engine frame, truck trames, and axles, ot' drivingl mechanism carried by the eugiiie frame, axle gears ot' dierent dialneters mounted on adjacent axles, a support extending between and carried bv said axle a journal box slidabl'e on the said support, a shaft comprising flexibly connected sections one ot' which is ournalcd in the engine frame and the other in the journal box, gearing hetweeii'said shaft and the driving mechanism. and an intermediate gear mounted on one of the shaft sections and shit'table with the journal box to engage either ot' the axle gears.

1 ln a geared locomotive. the combination with the engine frame, truck frames. and axles, ot' driving mechanism mounted on the frame. und means for gearing the drivin.;lmechanism alternately to different axles.

lil. In a geared locomotive, the combination with au engine frame, truck frames, and axles, of driving mechanism mounted on the engine frame, and lluid operated means for throwing the driving mechanism into and out of gear with an axle.

14, In a gru-tred locomotive, the combination with an cn gine trame, truck frames, and axles, of driving mechanism carried by the engine frame, gearing between the driving mechanism and one of the axles saidgearing including a tlexible connection to accommodate the relative movement of the engine frame and the drivenvaxle and also including two gears one of which is carried by an axle, and means for throwing said gears into and out of gear.

l5. in a geared locomotive, the combination with an engine frame, truck frames, and axles, of driving mechanism mounted on the engine frame. an axle gear fixed to one oi' the axles. and gearing between the driving mechanism fand said axle gear, said gearing including a tlexible connection accommodating the relative movement of the eugine frame and axle and also including a gear shiftable into and out of mesh with the axle gear. l

1G. ln a geared locomotive, tlie combination with the engine frame, truck frames, and axles, of driving mechanism, an axle gear iixed to one of the axles, a suppoi't carried by said axle, and gearing between the drivingI mechanism and the axle gear, said gearingl including a gear wheel shit'table ou the support to engage the axle gear.

1T. In a. geared locomotive, the combination with an engine frame, truck frames, and axles, of driving mechanism mounted. on the engine frame, a support extending between adjacent axles and carried thereby independently of the truck frame, an axle gear tixed to one of said axles, and gearing between the driving mechanism and the axle gear, said gearing including a tiexible connection accommodating the relative movement of the engine frame and axles and also including a gear shiftable on the support to engage or disengage the axle gear.

18. In a geared locomotive, the combination with an engine frame, cab, truck frames and axles, of drivingmechanism, gearing between the driving mechanism and an axle, andv tluid-operated gear controlling mechanism including a manually-operated device located in the cab of the locomotive.

1S). ln a geared locomotive, thel combination with an engine traine, truck frames and axles, of driving mechan ism, gearing between tile driving mechanism andan axle, gear controlling means supported by the axle, and a manually-operated member controlling the operation of said means and supported from the engine frame.

20.l 1n a geared locomotive, the combination with the engine frame, truck frames, and axles, of driving mechanism, gearing betweenthe driving mechanism and an axle, and duid-operated gear controlling mechanism operative to cause the connection or disconnection of the driving mechanism and axle.

21. In a geared locomotive, the combination with the engine frame, cab, truck trai-nes, and axles, of drivingr mechanism, gearing between the driving mechanism and one of the axles, fluid=operated means supported from adjacent axles to move the gearing into and out of gear, and means located in the locomotive cab and controlling the operation of said fluid-operated means.

22. In a geared locomotive, the combination with the engine frame, truck frames, and axles, of driving mechanism, gearing between the driving mechanism and an axle, and fiuidoperated means controlling the operative connection between the drivingmechanism and axle, said means including a` cylinder/a piston therein, and a controlling valve for the motive fluid.

2li. lii a geared locomotive, the combination with a cab, engine frame, truck frames, and axles, of driving mechanism, gearing between the driving mechanism and an axle, and means controlling the operative connection between the drivi mechanism and said axle, said means including a cylinder supported from the axle, a pi'ston in the cylinder, and a valve controlling the supply of4 motive nid to the cylinder and located in the locomotive cab.

E14. In a geared locomotive, the combination with the engine frame, truck frames, and axles, of driving mechani, u, gearing between the driving mechanism and one of the axles and including a shiftable member, and fluidism` gea ring between the driving mechanism and one of the axles and including a gear wheel shiftable into and out of gear, and {luid-operated means for shifting said gear wheel.

2G. In a geared locomotive, the combination with a cab, engine frame, truck frames, and axles, of driving mechan-` ism. gearing, between the driving mechanism and an axle, including :i shiitablc gcaiwheel, iiuidoperated mechanism for shifting the gear wheel, and a valve located in the locomotive cab and controlling the supply of motive uid to the Huid-operated shifting mechanism.

27. in a geared locomotive, tbe coni'bi'nation with an engine frame, truck frames, and axles, ot' driving mechanism, gearing betweeu the driving mechanism and one of the axles and including :i shittable gear wheel, uidoperated means supported trom the axle and operative to shift the gear wheel, anda iinid controlling valve supported from the engine frame.

28. In a geared locomotive, the combination with `the engine frame, truck frames, and axles, of driving mechanism, an axle gear fixed to one of the axles, gearing between the driving mechanism and the axle gear and including a shiftable gear wheel supported from adjacent axles and movable into and out of mesh with the axle gear, and iluidoperated means for shifting said gear.

29. 1n a geared locomotive, the combination with the ,engine frame, truck trames, and axles, of a support extending between and carried by adjacent axles, :in axle gear fixed to one of the axles, driving mechanism, and gearing connecting the driving mechanism with an axle and including a gear wheel shiftable on the support to engage 'and disconnect the axle wheel, and fluid-operated mechanism also mounted on the support and operative to shift the gear wheel.

30. In a geared locomotive, the combination with the engine frame, truck frames, and axles, ot' driving mechanism, an axle gear, gearing between the driving mechan ism and axle, including a gear wheel shit'table into and out of mesh with the axle gear, a spring retaining the gear wheel in one position, and duid-operated means for moving said gear wheel to another position in opposition to the spring.

31. 1n a geared locomotive, the combination with the engine frame, truck frames, and axles, of driving mechanism, gearing connecting the driving mechanism to the axle, an element shiftable to bring the gearing into gear, and means including a toggle for shifting said element.

32. In a geared locomotive, the combination with the engine frame, truck frames, and axles, of driving mechanism, gearing between the driving mechanism and aiiaxle and including a sliiftable element, and a fluid-operated toggle for shifting said element. l

33. In a geared locomotive, the combination withthe engine frame, truck frames, and axles, of driving mechanism, gearing between the driving-mechanism and an axle and including a shiftable element, a spring yieldingly retaining said element in one posititn, and a toggle for moving said element in opposition to the spring 34. I'n a geared locomotive, the combination with the engine frame, truck frames, and axles, ot driving mechanism, gearing between the driving mechanism and an axle and including a shiftable element, a spring yieldingly retaining sid element in one position, and a fluid-operated toggle for moving such element in opposition to the spring.

In a geared locomotive, the combination with the engine frame, truck frames, and axles, ot' driving inechanism, gearing between the driving mechanism and an axle, including a shiftable gear wheel, a shaft carrying said wheel, a shiftable journal box for said shaft, and a toggle operative to shift the journal box.

3G. In va geared locomotive, the combination with the engine frame, truck iframes, and axles, of driving mechanism, an" axle gear. intermediate gearing including a gear rwheel shittable into and out of mesh with the axle gear, a shaft for the shiitable gear wheel, a shittable journal box `for said shaft, and a huid-operated toggle for moving the box.

37. ln a geared locomotive, the combination with the engineiframe, truck frames, and axles, ot' driving mechanism, gearing intermediate-of the driving mechanism and an axle and including a member shiftable into and out of operative position. a toggle for shifting said member, a rocker opt-rating` the toggle, and fluid-operated means for moving the rocker.

Zi In a geared locomotive, the combination with an engine frame. truck frames, and an axle, of a support e'xtending between and supported by the adjacent axles, driving mechanism. gearing between the driving mechanism and an axle, said gearing including an axle gear fixed to the axle and an intermediate gear shit'table into and out of engagement with the axle gear, said shiftable gear being mounted-on the support extended between the axles, a rocker also mounted on'l said support, and a toggle arrangedto shift the gear and operated by the rocker.

si). In a geared locomotive, the combination with the engine frame, truck frames, and axles, of a support extendingl between adjacent axles and carried thereby independently ot' the truck frames, driving mechanism carried byihe engine trame, an axle gear fixed to one of the axles, gearing interposed between the driving mechanism and the axle gear and including an intermediate gear wheel shiftable into and out of operative position, n shaft for the shi'table gear` wheel, journal boxes supporting said shaft and sbittable on the support which extends between the axles. a rocker also mounted on the support and operatively connected to the journal boxes to shift the same, a cylinder mounted on the support, means for supplying motive fluid thereto, and a piston movable in the cylinder and connected to .the rocker to operate the same.

4U. In a geared locomotive. the combination with the engine trame,` truck frames, and axles, of driving mechanism carried by the engine fraaie, an axle gear tixed to one of the axles, a `support extending between and carried by adjacentaxles, sliding journal boxes, a rocker and a cyllnder all carried by said support, a shaft mounted in the Ajournal boxes. gearing between tliedriving mechanism and the axle gear and including-a gear wheel mounted on the shaft. and shittable therewith to engage and disconnect the axle gear, a toggle arranged to move the journal boxes to shiit the gear wheel, a connection between said toggle and the rocker, a piston mounted to reciprocatelin the cylinder and connected to the rocker, and means for snpplying motive fluid to the cylinder.

'415 ln a geared locomotive, the combination with the engine frame, truck frames, and axles, of driving mechan- `lem, and Huid-operated mechanism for throwing the driving mechanism into operative relation with different axles alternately.

4:2.,1n a geared locomotive, the combination with the engine frame, truck frames, and axles, of driving mechanism. gearing, and duid-operated means for establishing conection between the driving mechanism and either of two axles vthrough the medium of said gearing.

43. in a geared locomotive, the combination with the engine trame, truck frames, and axles, of axle gears oi' i different diameters fixed to adjacent axleman intermediate gear adapted to engage either of said axle gears, uidoperated mechanism for shitting the intermediate gear, and gearing between the intermediate gear .and the driving mechanism.

l1. In a geared locomotive, the combination with the cab, engine frame, truck frames, and axles, of axle gears ot' different diameters iixed to adjacent axles, driving mechanism, gearing for connecting the driving mechanism with either axle gear and including a gear wheel shiftable into engagement with either axle gear, duid-operated mechanism for shifting the intermediate gear, and a controlling valve located in the locomotive cab and controlling the operation of the gear shifting mechanism.

45. ln n geared locomotive, the combination with an engine frame, truck frames, and axles, o1 driving mechanisui carried by the engine frame, gearing adapted to conncct the. driving mechanism to either of two axles, and lluideoperated gear controlling mechanism.

41;. in a geared locomotive, the combination with the engine frame, truck frames, and axles, of driving,r mechanism carried by the engine frame. gearing for connecting the driving mechanism with either ot' two adjacent axles, a support extending between said axles and carried thereby, duid-operated gear clontrolling means carried by said support, and a controlling valve for said means.

4T. ln a geared locomotive, the combination with the engine frame. truck frames, and axles, of axle gears carried by adjacent axles, a gear wheel sbittable to engage either axle wheel, a support extending between and carried by the axles. means mounted on said support for shifting the gear wheel, and an operative connection between said gear wheel and the driving mechanism.

4S. ln a geared4 locomotive, the combination with the engine frame, truck trames, and axles, of driving mechanism, axle gears ot different diameters tixed to adjacent axles, a support extending between and carried by said axles, a gear wheel carried by said support and shit'table to engage either axle wheel, duid-operated means carried by said support to shift the gear wheel, and an operative connection between the shiftable gear wheel and the driving mechanism. i

49. in a geared locomotive, the combination with an engine trahie, truck trames, and axles, of axle gears fixed to adjacent axles, a support extending between said axles und carried thereby, a gear wheel shiftable on said support to engage either axle wheel, a rocker also carried by the support and movable to shift the gear wheel, and means for operating the rocker.

50. 1n a geared locomotive, the combination with the engine frame, truck frames, and axles, of driving mechanism, gearing including a shittable element movable to cause :inoperative connection to be established between the driving mechanism and either ot two axles, and toggle mechanism for moving said shiftable member in opposite directions.

51. In a geared locomotive, the combination with the engine frame, truck trames, and axles, of axle gears xed to adjacent axles, an intermediate gear shiftable to engage either axle gear. toggle mechanism for shifting said intermediate gear, and driving mechanism for said gear.

52. In a geared locomotive, the combination with the engine frame, truck frames, and axles, of axle gears fixed to adjacent axles, an intermediate gear shittable to en gage either axle gear, toggles for shifting said intermediate gear, and operating means common to said toggles.

53. ln a geared locomotive, the combination with the engine fraaie, truck frames, and axles, ofaxle gears fixed to adjacent axles, an intermediate gear shiftable to engage either :n le gear, toggles for moving the intermediate gear in opposite directions, and a rocker connected to said toggles. I 1

.'i-i. In a geared locomotive, the combination with an engine trame, truck frames, and axles, of axle gears fixed to adjacent axles, an intermediate gear shittable to engage either axle gear, driving mechanism for the intermediate gear, and a huid-operated toggle for shifting said gear.

55. In a geared locomotive, the combination with the engine frame, truck frames, and axles, oi axle gears iixed to adjacent axles, an intermediate gear shittable to engage' either axle gear, driving means for the intermediate gear1 toggles for shifting the intermediate gear, a rocker for operating the toggles, and duid-operated means for moving thev rocker.

56. In a geared locomotive, the combination with the engine frame, truck frames, and axles, of driving mechanism, gearing for connecting the driving mechanism to either of two axles, said gearing including a shiftable member, means yieldingly retaining said member in an intermediate position, and means for positively moving said member in either direction from said position.

57. In a geared locomotive, the combination with the engine frame, truck frames, and axles, of axle wheels carried by adjacent axles, an intermediate gear wheel shiftable to engage either axle wheel, means for yieldingly retaining the gear wheel in an intermediate position and out of operative relation with both axle wheels, and means for shifting the gear wheel into engagement with either axle gear.

58. In a geared locomotive, the combination with the engine frame, truck frames, and axles, of axle gears carried by adjacent axles, an intermediate gear shiftable to engage either axle gear, means yieldingly retaining the shiftable gear in an intermediate position, and fluid-operated means for shifting the intermediate gear in either direction to engage an axle gear.

59. In a geared locomotive, the combination with the engine frame, truck frames, and axles, of axle gears carried by adjacent axles, an intermediate gear shiftable to engage either axle gear, a rocker movable to shift the intermediate gear, counter active springs coacting with the rocker to throw the intermediate gear into disconnected position, and Huid-operated means for moving the rocker to shift the intermediate gear into engagement with either of the axle gears.

60. In a geared locomotive, the combination with the engine frame, truck frames, and axles, of driving mechanism, gearing adapted to connect the driving mechanism with either of two axles, and gear controlling mechanism including a cylinder, a piston therein, means for leading motive iiuid to the opposite ends of the cylinder, and a controlling valve movable to permit the motive fluid to be supplied to either end of the cylinder and exhausted from the opposite end thereof or to place both ends of the cylinder in communication with the exhaust.

61.1In a geared locomotive, the combinationwith the engine frames, axles, and truck frames movable relative to the axles and supporting the engine frame. of driving mechanism mounted on the engine frame, a shaft disposed transversely of the locomotive and comprising Ilexiblyconnected sections operatively related to the driving mechanism and an axle respectively.

62. In a geared locomotive, the combination with the engine frame, axles, and truck frames movable relative to the axles and supporting the engine frame, of driving mechanism mounted on the engine frame and including a driving shaft disposed transversely of the locomotive adjacent to one of the truck frames, and a second shaft also disposed transversely of the locomotive and having exihly connected sections, one of which is geared to the driving shaft and the other of which is'geared to an axle.

63. In a geared locomotive, the combination with the engine frame, truck frames and axles, of a shaft disposed `transverse to the locomotive and comprising iiexibly` connected sections, driving mechanism mounted on the engine frame and arranged to drive said shaft, and variable gearing whereby the axles of the locomotive may be driven at relatively high or low speed through the medium of lthe transverse shaft.

G-i. In a geared locomotive, the combination with an engine frame, truck frames and axles, of transverse driving shafts mounted on the engine frame over the truck frames, driving mechanism mountedon the engine frame and arranged to operate the driving shafts, and gearing hetween each of said driving shafts and an axle. y

65. In a geared locomotive, the combination with the engine frame, truck frames and axles, of driving mechanism on the engine frame, transverse driving shafts lo; cated adjacent to the opposite ends of the engine frame and arranged to be driven by the driving mechanism, gearingbetween each driving shaft and an axle. and means for throwing the gearing into and out of gear.

66. In a. geared locomotive, the combination of an engine frame, truck frames and axles, of driving mechanism on the engine frame, transverse driving shafts likewise mounted on the engine frame. separate sets of gearing connecting the respective shafts to different axles, and means t'or changing the speed of said gearing.

G7. A geared locomotive including axles, truck frames supported by the axles and movable relative thereto, an engine frame supported by the truck frames, driving mechanism mounted on the engine frame. gearing between the driving mechanism and an axle, said gearing being mounted independently of the adjacent truck frame to prevent rack'ing of the gearing hy the vibration of said truck frame. and means for shiftingr an element ot' said gearing to disconnect said axle and to operatively connect a different axle to the driving mechanism.

GS. A geared locomotive including axles, truck frames. springs supporting the truck frames from the axles and permitting movement of .said frames relative to the axles. an engine frame carried by the truck frames, said truck 'frames having limited movement relative to he'engine frame, driving mechanism mounted on the engine frame, and gearing, the elements of which gearing are supported from the engine frame and axles exclusively to prevent racking of the gearing by the vibration of a truck frame and said gearing including units disposed transversely of the locomotive and relatively movable to accommodate the relative movement ot' the engine frame and axles.

69. In a geared locomotive, the combination with an engine frame, truck trames, and axles, of driving mechanism, and means for operatively connecting the driving mechanism with ditferent axles alternately.

70. In a geared locomotive, the combination with an engine frame, truck frames, and axles, of driving mechanism, and means for operatively connecting the driving mechanism with different axles alternately, said means heing arranged to drive one axle at a greater speed than the other. l

In testimony, that I claim the foregoing as my own; I have hereto atllxed my signature in the prcsenceot two witnesses.

JOHN EARL FRIERMOOI).

Witnesses ScHurLnn Dumm-1. DANIEL F. infirme.

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