US1617169A - Electric train control - Google Patents

Description

7 Feb. 8, 1927. I mum W. E. SCUTCHALL Y j ELECTRIC TRAIN CONTROL l l ij 4 i" Mi LJJ/" 1] "SWWMM Feb., 8, 1927. I 1,617,169

w. E SQUTCHALL ELECTRIC TRAIN CONTROL Original Filed Jan. 25: 1923 s sheets-sh f? IHIIIIW Patented Feb. is, 1927.}

WILLIAM E. sou roirsnn, or irornwnLL, rENnsYLvAuIA, ASSIGNOR 'creamamn,

j TO JAMES COLES AND ONE-THIRD TO oii'ennnsit'nianrivoun, BOTH orqr'iorn- WELL, PENNSYLVANIA.

nnno'rnro TRAIN 'con'rnon.

' Application filed January v25, 1923, Serial No. 614,876. Renewed November 17, 1926.

This invention relates to certain new and provide an electric train control for steam locomotives \vhereinelectrically operatedde- I rendered operative for applying the 'air brakes shouldithe engineer fail to observe vices rendered operative by energized track ramps are employed for shutting off the steam supply from the steam chest of the locomotive to the slide valve cylinder and operate entirely independently of the air brake control in the engineers cab, the shutting off of the steam supply to the slidevalve cyl} V inder simultaneously automatically opening a by-pass in the air brake linefor applying the brakes, the electric train control being danger signals. p v I s qlVith the above and other obgects in view as the nature oft-he inventionis better under stood, the same consists ofthe'novel form,-

combination and arrangement of parts hereinafter more fully described, shown in the accompanyingdrawings and claimed."

In t the drawings, ivliereinlike reference characters designate. corresponding parts throughout the several views- T f a Figure l is a fragmentary side elevational view of the conventional type ofsteam locomotive equipped With the electric train control for applying the air brakes independently of theair brake applying mechanism under control. of the engineer,

Figure 2 is a fragmentary front elevationalvieiv of the locomotive showing the elec-' tric train control mechanism at eachside thereof and associated With each drive cylinder,

Figure is a vertical longitudinal section al view of the-drive and slide valve cylinders showing the electric control cylinder interposed in the steam line or pipe extending from the steam chest of the locomotive to the slide valve cylinder, the manipulating cylinder associated with the electric control c linder andthe' solenoid for operating a valve to by-pass "the steam through the man-ipulating cylinder, 7 Y

Figure 4E s a diagrammatic front'eleva tional view showing the brushesujfor'contacting the track ramp-and Wire connections to the svvitches at each'side of the loco no- 'ti-ve for operating the solenoids,

Figure 5 is a fragmentary detail view showing a ramp engaging contact roller used injlieu of the brushes illustrated in Figs. and 4, and" Figure 6' is atop plan view of'aportion' of a track showing the intermediate ramp rails, the semaphore signal, and the electrio Wire connections and switch, for ener-' gizing the ramp rails. W

Briefly described, the present invention aims to provide an electric train control. for steam locomotives that will be rendered'op erative for applying the air brakes-of the train, should the engineer fail to observe danger-signals, the electric train control de vices, operatingentirely independentlyof the manual control of the engineer, the d'evices being operatedthrough themedium of contact members carried: by the locomotive en'- gaging energized track. ramps to close an;

electric circuit for shutting off the isteamy supply from the steam chest of thelocomo tive to the slide valve cylinder and simul-;

tane ously releasing air for the automatic application of the 'air brakes, release thereof requiring the engineer to leave h s cab and operate certain devices at each sideof the v locomotive for releasing the air brakes,

throwing the electric to aeset position the latteroperating to prevent head-on or rear end collisions in a manner to be! hereinafter specifically described. The type ofelectric train control disclosed in" this application is readily steam locomotives of the usual construction,

and embodies What is hereinafter referredto interposed as an electric control' cylinder 7 between the in the steam pipe-connection S'GGtIHlCllGSt of the locomotive andthe slide valve cylinder, and further, What lS l16I':Q111; a manipulating cyl after referred to as a train controlapparatus adapted for inder, the electric'control and manipulat.

7 ing cylinders being alined and each having the brakes and applying the same. The electric train control devices are so located as to require the engmeerto leave the cab for re j leasing the same, and the air brakes, and, as

I above stated, operates entirely independently of the en ineers control of the slide valve cylinder and air brakes.

"Referring more in detail to the accompanying drawings, and particularly to Figs.

' 1, 2, and 6, the electric train control is associated with a steam locomotive ofthe usual type embodying a boiler body 10 mounted in the ordinary manner upon a truckthat carriesdrive wheels 11, the boiler body 10 being further supported bythesaddle 12 as shown in 2, while the drive Wheels 11 are illustrated as engaging the usual track rails 13. As shown in Figs. 1 and 2, the boiler body 10 has associated with each side thereof adjacent the front end, a slide valve cylinder 14 and a drive cylinder 15 disposed therebeneathand suitably supported on the saddle 12 and boiler body 10 in the usual manner 'and covered by a casing member '16 as clearly shown in F ig. 1.

"Devices constituting the electric train control for the locomotive are ElSSOCliLtQCbWlllll each slide valve cylinder at opposite sides of the boiler body 10, and embodies an electric control cyliiider 17 disposed above the slide valve cylinder, preferably at the inclination illustrated in Fig. 2, the elec triccontrol cylinder 17 being housed by the casing member 16-as shown in Fig. 1. The

'1116211'18 J for establishing communication between the boiler body 10 and the electric control cylinder 17 includes an interiorly posi tioned steam pipe 18, illustrated by dotted lines in Fig. 2 that extends from. the steam chest of the boiler body to the exterior steam pipe casting 19 thatcommunicates withthe port 20 in the upper side of the electric control cylinder as shown in Fig. and slide valve cylinders are of usual. construction, the former having the piston 21 reciprocating therein, and through the medium of the piston rod 22 communicating motion to the drive wheels 11. Th

wall 23 between the drive and st valve cylindeishas end ports 24 that are cons.

trolled by the slide valve 25 the slide valve cylinder, while communication between the electric control cylinder and the slide The drive valve cylinder is had through the port 26 formed in the spacing wall 27 between said cylinders;

The electric train control further includes a manipulating cylinder 28 supported by a bracket 29 carried by the boiler body 10 as shown in Figs. 1 and 2, and is positioned forwardly of and longitudinally alined with the electric control cylinder 17. rod 30 is slidable' through bushings 31 carried by the adjacent end of the electric control and manipulating cylinders, the for ward end. wall of the cylinder 17 carrying an inwardly directed relatively long bearing 32, the opposite ends of the rod 30 carrying pistons'33 and 33 working respec tively in the electric control and manipulating cylinder. I r j The air brake mechanism for the train 111- cludes a compressed air tank 34, preferably.

supported on the boiler body 10 as shown in Fig. 1', an air pipe 35 extending from the rear end of the tank 34'leading to a position in the cab of the locomotive to be con:

trolled by the engineer, the pipe having a check valve 36 therein to prevent. backi'low of air pressure and extending to the three-way valve casing 37 having a single outlet pipe 38 in direct communication with.

the brake shoes. The air brake pipe line that is operated by the electric t'ain control mechanism is entirelyindependent of the pipe line 35 under control of the engineer, and includes, shown in Figs. 1 and 3, a pipe section 39 extending from the forward end of the compressed air tank 34 to the upper side of and entering the electric coir' trol cylinder 17 with a manually operable valve 40-carried thereby. The rear end of the electric control cylinder has a pipeline 41 tapped therein, the pipe 41 being provided with a check valve 42 and continuing for attachment to the three-wayvalve casing 37 to discharge through the single outlet pipe line 38, air passage through the rear end of the electric control cylinder being normally shut off-by the pistonQ33'v positioned adjacent the rear end as illus trated in Fig. 3. 1

The steam pipe connections extending between the inanipulating cylind r :8 and the exterior steam pipe casting 19 are disposed beneath the boiler body 10 between the cylinders and the saddle 12 as shown in and includes a, vertically disposed pipe section extending from the steam pipe 19 with a forwardly directed tions 44 carrying an upwardly directed in termediately positioned branch pipe 45 having a manually operable valve 46 therein while the upper end of the branch extension 45 communicates with the rear end of the manipulating cylinder 28 atthe inner side thereof as indicated at 47. Theforward section 44 coupled to the lower end thereof, the horizontal secot a link rod 55 isconnected, the other end V of the link rod being connected to the lever 56 that controls the valve 5? in the verticalpipe section 43.v

. Thebox 53 is supported by a bracket 58 mounted upon the saddle 12 as clearly shown in Figs. 1 and 2, the box 53 containing a solenoid 59 that has a pin connection 60 with the bearing shaft of thelever 54, as clearly shown in Fig. 3. The electric wiring system and track structure consists in laying the track rails 13 in block sections insulated as at 61, shown in Fig. 6, with a pair of ramp rails 62 supported on the ties 63 between the track rails 13' adjacent the torwardend of each block. The wire connections between the contacts and switch blades carried by the boxes 53 and the ramp rails 62 are shown more clearly in Figs; 1 and/1', a contact brush 64: engaging one of the ramp rails 62 has a wire connection 65 with the terminal a carried by one of the boxes, a wire 66; connected as'at 67 to the line wire 65 leads to theterminal -a carried by the box 53 at the other side of the body 'The contact brush 6st" engaging the other ramp rail has a line wire connection 65 withthe terminal b of-the adjacent box, the wire 66 connected as at 67 to the wire 65', extending to the terminal 'b of the other box 53, each'of the contacts carried by the boxes being provided with, a switchblade 68. ire connections 68 extend 'trom the terminals a? and atothe respective-switch blade 63, while wire Connections 68 extend from the terminals .Zi and 'Z)- to the respective switch contacts 53. The brushes 6-l are supported in any convenient manner upon the forward truck frame of the locomotive as illustrated in Fig. l, and it desired, contact members 6% of the type illus-' trated in Fig. 5 may be employed in lieu ot the contact brushes, the contact member 6 lhaving a tensioned roller 69that engages the ramp rail 62. Y

The electrical devices for energizing the spaced. ramps 62, illustrated in Fig; 6, includes a battery 70 'havinga lead wire 71 extending from one pole thereof to one of the ramps 62,- the lead wire .7 2 from the other pole of'the batteryTObeing connected. i

to a contact 173 housed within a signal post 74 having a semaphore arm 7 5 pivotally mounted at theupper end thereof; A link rod 76 disposed Within the post 74 is connected to the semaphore arm to be shifted thereby, the lower end of the link rod carrying a contact'77 to which one end of a line wire 78 isconnected, the other end of said wire extending to the other ramp 62, the ramps 62 being energized when the semaphore arm 75 is'lowered to its horizon tal danger position as illustrated in Fig. 6 by closing engagement of the contacts 7 3 and 77 In the operation of the semaphore and the energizing of the ramps 62, the track rails -13 engaged by the drive wheels 11 in I a blockcause, in the usualmanner .by elect'rical a maratus the lowerin to a danger L J b P a; position of the semaphore arm' (5 in the proper rearwardly disposed block, the lowering of the-semaphore arm closlng the 0011-. tacts 73 and 77 for energizing the ramp rails 5 62 that are engaged by the contact brushes 6% and 6 k for bridging the circuit and transmitting power to vthe'switches carried by the boxes 53 for operating the solenoids 59 under control of the switch blade 68 on a train approaching from the rear. The traincon- .trol mechanism directly associated with the slide valve cylinder 1% has the ' pistons 33 and 33 in the electric control and manipulatin cylinders 17- and 28 respectively normally positioned at the rear ends of said cylinders as illustrated in Fig. '3, the pis- 'thereafterdischarged into "the drive cylinder 15 to'becontrolled in the usual manner by the engineer. The valve 57 in the steam pipe 43 and the valve 49 in'the branch pipe 48 are normally closed,v as is also the pet cock 52; the valve 46 in the branchpipe 45; being open while the pet cock 51 is also open. hen a train passes througha block in which the'ramp rails 62 are energized by the danger position of the semaphore arm 75, the contact brushes 64 and 64 enthe energized ramp rails 62 for bridging the same and completing a circuit troni the battery 7 0 to theswitches carried by the boxes53, energizingthe solenoids59 for moving the leverb l and lever 56 through the link rod connection 55 tor opening the valve 57 v the steam pipe 1 9 through the branch pipe 45 and into the rear end ofthe manipulat- 'ing cylinder 28, steam pressure: in the rear" to permit the flow ofsteam from end. of the manipulating cylinder sliding the piston 33 forwardly therein wit air escapinto'engagement with the contacts ing through the petcock 51, the forward movement of the piston 33 carrying the piston 33 forwardly in the electric control cylinder 17, movement thereof being limited by the piston 33 cngagingthe relatively long bearing'32 for opening the air line pipe 39 and closing'the port- 20 in the side of the electric control c linder, steam confined within the forward end of: the cylinder 17 escaping by way of the cutaway portion 27 in the separating block27 between the elec tric control and slide valve cylinder. The supply of steam to the slide valve cylinder is shut off by tne piston 33 and the flow of compressed air from the tankSt through the rear end of the electric control cylinder, as will at once be evident from an inspe tion of Fig; 3 is permitted, the air traveling through the pipe s'l, through the three-way valve 37 and single outlet pipe 39 for the application of the brakes. it will therefore be secn th'at the electric train control operates entirely independently of the steam and air. brake control that operated by the engineer, so that in e; se the engineer should fail to observe danger signals, the energized ramp rails-62 electrically associated with the solenoids 59' immediately release the steam through the, bypass pipe sections-above described for shutting oil the steam supply to the slide valve cylinder and automatically openlng the air brakelme for applymg the brakes. In resetting the apparatus,

and releasing the air brakes, it is necessary that the engineer leave his cab for operati; 3;

such devices, such as'closing the pet cook 51 and opening the pet cock 52, closing the valve 46 in the branch pipe and opening the valve l-S) in the branch pipe 48, permitting steaintrom the pipe 19 to How into. the, forward end of the manipulating cylinder 28 :tor forcing the pistons 33 'and 33 rearwardly intheir respective cylinders :tor establi sh ing communication between the steam pipe 19 and the slide valve cylinder, and also for shutting off the airhrake pipe line 39 as shown in Fig. 3, steam in the rear end of the manipulating cylinder 28 escaping through the-pet cock 52, the releasing 01": the electric train control devices being further accomplished by the switch blades -68 being thrown to open positions, see Figs. 2 and 42, for breaking the current between switch blades 68 and contactsfil, when the contact brushes engage the energized ramp'rails 62, it being understood that after the contact brushes are moved out of engagement with the energized ramp rails 62, the switch blades. 68 may again be moved 53. As above stated, the electric train control apparat-us operates entirely independently of the locomotive control in charge of the eng neer, the same when being set to an opera tive position being automatically operated when energized. ramp rails '62 are engaged by contact members,'the apparatus simultaneously shutting oil the supply of steam to the slide valve cylinder and opening the air brake line for applying the brakes. The separating of the contacts 73 and 77 1n the tending from the battery to the ramp rails 62 are dead, and contact brushes 64 and g in engagement with the ramp rails will not be atlected thereby as the semaphore arm shifted by a train in .a certain block energizes ramp rails 62 in a rearwardly positicned block that may represent any desiredbleck in the track.-

While the present embodiments as herein illustrated are what are believed to be preferable for accomplishing the purpose intended, it is to be understood that various char are contemplated as will fall within the scope of the subject matter claimed.

What is claimed as new is 1. In an electric train control "for locomotives, the combination with the slide valve cylinder, of electricallyoperated devices for shutting off the supply of steam thereto, said electrically operated devices including an electric control cylinderinterposed in the source of steam supply to the slide valve cylinder, a manipulating cylinder associated with the electric control cylinder, connected pistons in the electric control and manipucylinder, of manually rele sable electrically operated devices for shutting oil the supply or steam thereto, said electrically operated d vices including an electric control cylinder interposed in the source of steam supply to the slide valve cylinder, a 'manipulating cylinderassociated with the electric control cylinder, connected pistons in the electric control and manipulating cylinders and means for admitting steam to the manipulating cylinder for moving the piston in the.

electric control cylinder for shutting off the supply of steam to the slide valve cylinder.

3. in anelectric train control for locomo tives, the combination with the valve cylinder and compressed air tank for the air brakes, of electrically operated deslide vices for simultaneously]shutting ofi the supply of steam to the slide valve cylinder and opening the air brake line, saidjelectrically operated devices including an electhereto, saidelectrically operated devices. ,including an electric control cyllnder intermitting steam to the manipulating cylinder for moving the piston 1n the electric contriccontrol cylinder interposed in the source of steam supply to the slide valve cylinder,

a manipulating cylinder associated with the electric control cylinder, connected pistons 'cally operated devices for simultaneously shutting off the su'pply of steam to the'slide valve cylinder and openingthe ailbrake line, said electrically operated devices 1n;

eluding an electric control cylinder] interposed in the source of steam supply to theslide-Valve cylinder, 21 man pulating cylinderassociated with theelectric control cylinder,

connected pistons in thelelectric control and manipulating.cylinders and means for admitting steam to the manipulatingcylinder for, moving the piston in the electric control cylinder-for. shutting oil the supply of'steam to the slide valve cylinder. v

5. In an electric train control tives, the combination With the slide valve cylinder having means undercontrol of the engineer for feeding steam thereto, ofindependently operable electrically operated devices for shutting o tl'the supply, of steam posed in the source of-steam supplyflto the slide valve cylinder, a manipulating cylinder associated'with the electriccontrol cylinder, connected pistons in the electric control and manipulating cylinders andmeans for adtrol cylinder for shutting ofi the supply of steam to the slide valve cylinder. V i

6. In an electric train control for locomotives, the combination With the slide valve cylinder having means under control of the engineer tori'eeding steam thereto,"

of independently o )erable manually releasable electrically operated devices for shutting off the supplyvof steam hereto, sa d electrically operated devices including an electric cont-rolcylinder interposed in the source of steam supply'to thefslide valve cylinder, a manipulating cylinder associated with the electric control cylindenconnected pistons in the electric control and manipulating cylinders and 'means for admitting steam to the manipulating cylinder for moving the'piston in the electric control cylinder for locomoslide valve cylinder.

for shutting off the supply of steam to the Ineneloctrictrain control for locomoe tives, the j combination with the slide valve cylinder and compressed air tank for the air brakes, of independently voperable electrically Operated devices for simultaneously, shutting off-the supply'of steam to thesllde "valve cylinder and opening the air brake line, said electrically operated devices includingsn electric. control cylinder interposed; in the sourceof steam supply to the slide valve. cylinder, a manipulating cylintrol and manipulatingcylinders and means for admitting steam to the manipulating cyl vder associated with the electric controlcyl- 7 a I inder, connectedpistonsjin the electric con inder for movingthe piston in the electric control? cylinder for shut-ting oil the supply oi? steam to the =s lide-valve cylinder. I 8. Inan electric train control forlocor.

cylinder and. compressed air tank for the air brakes, of independently operable and m n'- ually releasable electrically operated devices motives, the combination With the slide yalve for simultaneously shutting off the supply of'steam to the slide valve cylinder andopen ing the air brake line, said electrically erateddevices' including a n electriccontrol,

cylinder interposedvin the sourceof. steam] supply to the slide valve cylinder, 21 manipulatingc ylinder associated with the electric control cylinder, connected pistons in the electric control, and manipulating cylinders andmeans for admitting steam to, the maipulating cylinder for moving the piston in the electric control cylinder for shutting ofli the supply of steam/to theslide valve cylinder. 7 v g t 9. In'an electric train control for loco motives, the combination with the slide valve cylinder and compressed air tanlc for the air brakes,and, wherein devices are operahlefby the engineer for supplying. steam to the i slide valvejcylinder iand opening the; air brake line, of independently operable 'Lelectrically operated 'devicesqfor shutting oil the supply of steam to the slide valve cylinder and openingthe air brake line, said ele'c trically operated devices including an elec tric control cylinder interposedinthe source of steam supply to the slide valve cylinder, a manipulating cylinder associated With the electric control cylinder, connected pistons in. the electric control andimanipulating cylinders, and means for admitting steamto.

the manipulating cylinder for moving the pistonlin the. electric control cylinder for shutting oil the supply of steam tothe slide valve cylinder.

loo

10. In an electric train control forlocoimotives, the combination With'the slide valve cylinder and compressed airtank for the air brakes, and Whereindevices are operable by the engineer for supplying steam to the slide valve cylinder and opening the air brake line, of independently operable electrically operated vdevices for simultaneously shutting oil the supply of steam to the slide valve cylinder and opening the air brake line, said electrically operated devices including an electric control cylinder interposed in the I source of steam supply to the slide valve saidxelectrically operated devices including. an electric control cylinder interposed in der for shutting oil the supply of the source of steam supply to the slide valve cylinder,a manipulating cylinder associated with the electric control cylinder, connected pistons in theelectriccontrol and manipulatingcylinders, means for admitting steam to the manipulating cylinder for moving the piston'in the electric control cylinder for is shutting ed the supply or" steam to the slide valve cylinder,the air brake line being associated with: one end of; the electric control cylinder and normally closed when steam is flowingtothe slide valve cylinder and adapted to be opened when the piston is moved to shut ed the supply of steam to the slide valve cylinder, said electrically operated de vices further including a switch box associated, with each electric control and manipu'lating cylinder, a solenoid enclosed therein, the meansfor admitting steam to the manipulating cylinder including a pipe line, a valve therein, operative connections between said valve and solenoid, and energizable track ramps electrically connected to the solenoid. V i

T112. In an electric train control for locomotives, the combination with theslide-valve cylinder, of manually releasable electrically operated devices for shutting oil the supply of steam thereto, said electrically operated devices including an electric control cylinder interposed in the source of steam supply to the slide valve cylinder, a manipulatingcylinder associatedwith the electric con trol cylinder, connected pistons in the elec tric control and manipulating cylinders,

means .for admitting steam to the manipulating cylinder' for moving the piston in the electric control cylinder for shutting off the supply of steam tothe slide valve cyl- 'inderythe air brake line being associated with one end of the electric control cylinder and normally closed when steam is flowing to the slide valve cylinder and adapted to be opened when the piston is moved to shut off the supply of steam to the'slide valve cylinder, said electrically operated devices further including a switch box associated with each electric control and manipulating cylinder, a solenoid enclosed therein, the

meanscfor' admitting steam to the manipulating cylinder including a pipe line, valvetherein, operative connections between said valve and solenoid-and ener izable track ramps electrically connected to the solenoid.

13; In an electric train control for locomotives, the combination with the slide valve.

cylinder andcompressed air tank for the air brakes, of electrically operated devices for simultaneously shuttingoll the supply of steam to the slide valve cylinder and opening the air brake'line, said electrically operated devices including an electric con trol cylinder interposed in the source of steam supply tothe slide valve cylinder, a

manipulating cylinder associated with the electric contro cylinder, connected "pistons in the electric controland manipulating cylindersc means for admitting, steam to the manipulating cylinder for moving the piston infthe electric control cylinder for shutting oil the supply of steam to the slide valve cylinder, the air brake line being associated with one end of the electric control cylinder and normally closed when steam is flowing to the slide valve cylinder-and adapted to be opened when the pistonis moved to shut oftv thesupply of steam to the slide valve cylinder, said electrically operated devices further including a'switch box associated with eachelectric control and manipulating cylinder, a solenoid enclosed the ein, the means for ac niitting steam to the manipulating cylinder including a p pe:

line, a valve therein, operative connections between said-valve and solenoid, and energizable track ramps electrically connected" to the solenoid. s I V 1a. In an electric train control for locoair brakes of manually releasable electrically operated devices for simultaneously shutting 0d the supply of steam to the slide valve cylinder and openingthe air brake line, said electrically operated devices includ1ng an electr crcontrol cylinder interposed in the source of steam supply to the slide valve cylinder, manipulating cylinder associated 'witlrthe electric control cylinder, connected pistons in the electric control and manipulating cylinders, means for admitting steam to the manipulating c linder for moving the piston in the electric control cylinder for shutting oil the supply of steam to the slide valve cylinder, the air brake line being associated with one end of the electric control cylinder and normally closed when steam'is flowing to the slide ,liej motives, the combination with the slide valve cylinder and compressed air tank for the supply-of steam to the slide valve cylinder, said electrically operated devices tur'then valve cylinder anfdeadaptedfto be opened Whenthe piston 'isfinoved to shut oi? the including a switch box associated With-each electric control and manipulating cylinder, a solenoid enclosed therein, the. means for admittingsteam to the manipulating, cylinder including a pipe line, a valve therein. operative connections between said valve and'solenoidand energizable track ramps electrically; connectedtothe solenoid;

15. In an electri train control for locomotives, the combination with the slide valve cylinder liavingmeansunder control of the engineer for feeding steam thereto.v of independei'itly operable electrically operated de vices for shuttinglotl' thesupply of steam thereto, said electrically operated devices including an electric control cylinder nterposed in the source or steam supply to t der associated with the electric control cylinder, connected pistons in the electric control and manipulating cylinders, means for.

admitting steam to the Iii'anipulating cylin 'der for-moving the piston inthe electric 7 electric-control and manipulating cylinder,

a solenoid. enclosed therein, the means for admitting, steam to the manipulating" cylinder including a pipe line a valve therein,

operative connections between said valve and solenoid and energizable track ramps electrically. connected .to the'solenoidl6. Inan electric train control for locomotives, the combination ith'the slid-e valve cylinderhavingmeans under control of the engineer for feeding steam thereto, of in-,

dependently operable manually releasable electrically operated devices for shutting off the supply. ot steam thereto, said electrically operated devices including an electric control cylinderinterposed in the source of steam supply to'the slide valve cylinder, a manipulating cylinderasso'ciated with the electr c control cylinder, connected pistons in the electric control and :inanipulatin 9; cylinders,

means tor admitting steam, to the manipulating cylinder for'moving the piston in the electric control CYllllClQl'lOl shutting. oft-the supply of steam to the slide valve cylinder,

the air brake 'linebeing associated with; one end of the electric control cylinder and normally closed when steam is flowinglto the s'lidevalve cylinder and adapted to be i1e. 'slide vvalve cylinder, at manipulatingcylinv p associated opened when the piston is'moved toshut 0H the supply of steam to the slide valve cylinder, said electrically operated devices further including a switch box associated ivith each electric control and manipulating cylinder, a solenoid enclosed 'therein tlie means for admitting steam to the lllillllPlllating cylinder ncluding a p pe l ne, avvalve therein, operative connections between said 'valve and solenoid, andenergizable' track 5" ramps electrically connected to the solenoid.

17 In aii electric; train control fcr flocomotives, the combination with the slide valve cylinder and-compressed air tank torthe air brakes, of independently, operable electrically operated devices for simultaneously valve, cylinder and: opening the air'ibrake line, said electrically operated devices including ,an electric control cylinder interposed in the source of steam supply to the slide valve cylinder, a manipulating cylinder ivith the electric control 1 cylinder, connectedpistons in the electric'cont'rol and manipulating cylinders, means for admitting steam to tlieinanipulatingcylinder 01 moving the, piston .in the electric "control cyl nd-errorshuttingotf the supplyof steam to the slide valve cyl nder, the air. brake line being associated with one end of, the electriccontrol cylinder and normally closed "when steam is flowing tothe sl de valve cy1-' indeif and adapted to opened whenth-e piston is moved to shut o'fi the supplyyorf steani to the slide "valve cylinder, said elecshuttingofi the supply of vsteam tothejslide tr'cally operated devices, further including a switch box aissocizitedavith each electric controlfand manipulating;cylinder,a soles noid enclosed therein, themeans for admitting steam to the manipulating cylinder 111 eluding a pipe line, a valve therein, operative connectionsbetxveen said valve and solenoid,

and energizable track ramps electricallyconnected to the solenoida t v 18. In an electric train icontrolsfor' loco motives, the combination. With the slide valve cylinder and compressed aiiitank for the air brakes,.'of independently operable and manually releasable electrically operated devices for simultaneously shutting off the supply of steam to the slide valve cylinder and opening the-air brake line, sa d electrically operated dev ces including 7 an electric control cylinder nterposed in the source of steam; supply to theslide valve cylinder, a manipulating cylinder associated with the electric control cylinder, connected pistons 'i i the electric control and fnianipiilating cylinders, means for admitting steam to themanipulating cylinder for moving the piston in the electric control cylinder tor shutting off the supply of steam tothe,

.slidevalve cylinder, the air brake line being associated with one end of the electric control T cylinder :aiid normally closed"wheiri stean is flowing to the slide valve cylinder and adapted 'to be opened when the piston is moved to shut off the supply of steam to theslide valve cylinder, said electrically op- 'erateddevices further including a switch ,boX associated with each electric control. and manipulating cylinder, a solenoid enclosed therein, the means for admitting steam to the manipulating cylinder including a pipe line, a valve therein, operative connections between said valve and solenoid, and energizable trackramps electrically connected to the solenoid. V

1 9. In an electric train control for locomotives,the combination with'the slide valve cylinder and compressed air tank for the 1 air brakes, and wherein devices are operable 'means for lat-111g cylmder lncluding a pipe line, a valve by the engineer for supplying steam to the slldefvalve cylinder and opening the air brake line, of independently operable electrically operated devices for shutting oiithe supply of steamto the slide valve cylinder and opening the air brtkeline, said electrically operated devices including electric control cylinder interposed in the source of steam supply to the slide valve cylinder, a manipulating cylinder: associated with the electric control cylinder,'connected pistons ,in the electric control and manipulating cylinders, means for admitting steam to the therein, operative connections between said valve and solenoid, and energi'zable. track ramps electrically connected to the solenoid.

20. In an electric train control for 10001110- tives, the" combination with the slide valve cylinder and compressed air tank for the air brakes, and wherein devices are operable by the engineer for supplying steam to the slide valve cylinder and opening the air brake line, oi independently operable elec trically operated devices for sinuiltaneously shutting off the supply of steam to tl'ieslide valve cylinder vand opening the air brake line, said electrically operated devices in cluding an electric control cylinder interposed in the source of steam supply to the slide valve cylinder, a manipulating cylinder associated With the electric control cylinder, connected pistons in the electric control and manipulatingcylinder, means tor-admitting steam to the manipulating cylinder for moving the pistoninthe electrlc control cylinderior shutting ofi the supply of steam to the slide valve cylinder, the air brake line being associated With one end of the electric control cylinder and normally closed hen steam is flowing to the slide valve cylinder and adapted to be opened when the piston is moved to shut the supply'or steam to the slide valve cylinder, said electrically operated devices further including a switch be associated with each electric control and manipulating cylinder, a solenoid enclosed therein, the-means for admittingsteam to the niianipulating cylinder including a pipe line, a valve therein, operative connections bier-seen said valve and solenoid, and energizabletrack ramps electrically connected to the solenoid. I

21; In an electric train control for steam locomotives, the combination With the slide valve cylinder at each side thereof, of an electric control cylinder interposed in the source or steam supply to each slide valve cylinder, compressed air tanks for the air brakes, throttle control means for deliver ing air from the tank to the brakes, an air line extending "from each tank to the adjacent'control cylinder and from the cylinders to the brakes, and electrically operated means torshutting off the supply of steam'to the slide valve cylinders and opening-the air lines to apply the brakes. i

22. In an electric train control vfor steam locomotives, the combination with the slide valve cylinder at eachside thereofl'oi an electric control cylinder interposed in the source or steam supply to ea'ch slide valve cylinder, compressed air tanks for the air brakes, throttle control means'for delivering air from the tanks to the brakes, an air line extending from, each tank to the adjacent control cylinder and from the cylinders to the brakes, amani-pulating cylinder .alined With each control cylinder, pistons in the control and manipulating cylinders, a single rod connecting the same, and electrically operat- .ed means associated with the manipulating cylinders for shifting the pistons for shutting ofi the supply otsteam to the slide valve cylinder and opening the lines to apply the brakes. I I

23. In an electric train:controlffor steam locomotives, the combination with the slide valve cylinder at each elder-hereof, or an electric'control cylinder interposed in the source or steam supply to each slide v lve cylinder, compressed air tanks for the air brakes; throttle control means for delivering air from the tanks to the brakes, an air line extending from each tank to the adjacent control cylinder andfrom the cylinders to the brakes, a manipulating cylinder alined with each control cylinder; pistons in'the control and manipulating cylinders, a single rod connecting the same, pipe connections be tween the source of steam supply and the manipulating cylinders, and electrically op erated means for admitting steam to the manipulating cylinders for shifting the two pistons for simultaneously shutting off the supply of steam to the slide valve cylinders and opening the air lines to apply the brakes.

24. In an electric train control for steam locomotives, the combination with the slide valve cylinder at each side thereof, of an electric control cylinder interposed in the source of steam supply to each slide valve cylinder, compressed air tanks for the air brakes, throttle control means for delivering air from the tanks to the brakes, an air line extending from each tank to the adjacent control cylinder and from the cylinders to the brakes, a manipulating cylinder alined with each control cylinder, pistons in the control and manipulating cylinders, a single rod connecting the same, .pipe connections between the source of steam supply and the manipulating cylinders, main supply valves in the pipe connections, a solenoid operatively connected to each valve and track ramps electrically connected to the solenoids for energizing the same to open the valves for admitting steam to the manipulatingcylinders for shifting the two pistons for simultaneously shutting off the sup-ply of steam to the slide valve cylinders and opening the air lines to apply the brakes.

25. In an electric train control for steam locomotives, the combination with the slide valve cylinder at each side thereof, of an electric control cylinder interposed in the source of steam supply to each slide valve cylinder, compressed air tanks for the air brakes, throttle control means for delivering air from the tanks to the brakes, an air line extending from each tank to the adjacent control cylinder and from the cylinders to the brakes, a manipulating cylinder alined with each control cylinder, pistons in the control and manipulatingcylinders, a single rod connecting the same, pipe connections between the source of steam supply and the manipulating cylinders, main supply valves in the pipe connections, a solenoid operatively connected to each valve, track ramps electrically connected to the solenoids for energizing the same to open the valves for admitting steam to the manipulating cylinders for shifting the two pistons for simultaneously shutting off the supply of steam to the slide valve cylinders and opening the air lines to apply the brakes, a switch box inclosing each solenoid and switch levers for deenergizing the solenoids.

26. In an electric train control for steam V I locomotives, the combination with the slide in the pipe connections, a solenoid operatively connected to each valve, track ramps electrically connected to the solenoid for energizing the same to open the valves for admitting steam to the manipulating cylinders for shifting the two pistons for simultaneously shutting off the supply of steam to the slide valve cylinders and opening the air lines to apply the brakes, a switch box inclosing each solenoid, switch levers for deenergizing the solenoids, the pipe connections including branch pipes entering each end of the manipulating cylinders and man ually operable valves in the branch pipes.

In testimony whereof I afliX my signature.

\VILLIAM E. SG'UTCHiALL.

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