US1135881A

US1135881A - Train-stopping apparatus.

Info

Publication number: US1135881A
Application number: US84111314A
Authority: US
Inventors: Charles C Cox
Original assignee: FRANKLIN M THOMPSON
Current assignee: FRANKLIN M THOMPSON
Priority date: 1914-05-26
Filing date: 1914-05-26
Publication date: 1915-04-13
Anticipated expiration: 1932-04-13

Description

J ,c. c. cox. TRAIN STOPPING APPARATUS. APPLICATION HL ED MAY 26. I914.

Patented Apr. 13, 1915.

4 SHEETS-SHEET 1.

Y C. C COX.

TRAIN STOPPING APPARATUS.

APPLICATQON FILED MAY 26, I914.

Patented Apr. 13, 1915 4 sums-sum- 2.

c. c. cox, TRAIN STOPPING APPARATUS.

APPLICATION FILEI IXMAY 26, 1914.

Patnted Aj ms, 1915.

4 sums-{um a.

f' -aeasei.

channels 6. coxjor rumskr, vmemm, nssienoa or ONE-HALF fro rnnnxnmn.

THOMPSON, or rums n, vraomm.

TRAIN-sacrum, srrsnarus.

[To all itmlciy concern:

' Citizen .-of the United States,

Be it lmownthat I, CHARLES C. Cox, a residing at Pulas'kfiinfithe county of Pulaski and State of irginia, have invented new and useful Improvements in. Train-Stopping Appa- J ratus', of which the -following is a 1 specifica- "'=tion.

This invention relatesto improvements in train stoppingapparatus and-has particular application to automatic mechanism for cutting .oif.-'the-'r propelling power of a motor car-and applying the brakes.

lngcarrymg "out the present invention, it i my-{purpose to provide'apparatus of the "class escribed which may be installed on steam'and electric railroads and which will be self controlled so that when the propel 1111 power of the motor car has been out off and the brakes applied, the car carried stoping mechanism will be rendered inactive, as ar as the propelling system mechanism and brake system. of the motor car is concerned.

It is also my purpose to provide apparatus of the type set forth which will operate efficiently and effectively under all conditions,

which will be simple and economical in conhorizontal sectional struction and operation and which will embody-comparatively few parts and these so correlated and arranged as to reduce the possibility of 'derangement to a minimum.

. With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth in and falling within the scope of the claims.

In the accompanying drawings; Figure 1 isa diagrammatic plan view of a trackway showing the relative positions of the current carrying conductors and track rails. Fig.2

-1S a sectional view on the line 22 of Fig. 1.

Fig. 3 is a diagrammatic view of the car carried mechanism. Fig. 4 1s a diagrammatic plan view of the mechanism for operating or operating the engineers brake valve.

Fig. 9 is a horizontal sectional view through Specification of Letters Patent." 7. Application filed May as, 1914. Serial a... 541,113.

wa t d Apr. is, 1915. I

such mechanism, parts being shown in top plan. Fig. 10 is a vertical sectional view therethrough. Fig. 11 is a perspective view of the contact roller or trolley wheel. Fig. 12 is a sectional view through Fig. 11.

Referring nowto the drawings in detail,

. 1 designates a-trackway which is preferably divided into blocks of. suitable lengths and arranged betweenthe lines of rails of each block is a conductor 2 parallel with theadjacent line of rails and alining axially with the conductors in the adjoining blocks. Each conductor 2 is supported upon posts 3 appropriately fastened to the upper surfaces of the ties of the trackway, and is disposed in a plane above the tread surfaces of the track rails, the conductors 2 beinggrounded through the posts 3. At switches, grade crossings and similar places the particular conductor 2 is carried under the rails of the Fig. 1.

In the-embodiment of my invention selected for illustrative purposes, I have shown the car carried-g mechanism'-as installed in a steam 'drivehj; locomotive and in this connection I ensue to be understood that theinvention -in its useful application,

switch or intersecting line as illustrated in v is not limited. to steam railroads, but is equally applicable to electric railroads.

designates the throttle valve lever movable about the fulcrum post 5 and having the upper end thereof connected with the throttle valve rod 6, while. 7 indicates the quadrant platehaving the outer edge thereof formed with teeth adapted to be engaged by the latching dog of thethrottle lever to hold the latter in the desired position. Mounted upon the fulcrum post 5- 0f the throttle lever and concentrically thereof is a disk 8 having the periphery thereof formed with teeth 9, while formed integral with the periphery of the disk and projecting radially thereof is an arm 10 lying. in faceto fact contact with the quadrant plate and capable of movement over such plate. 'This arm 10 is normally disposed at the forward edge of the quadrant plate, that is, the edge of the plate remote from the boiler and the outer end edge of such arm is beveled as at 105 the latching dog of the throttle rod and projecting onto the face'of the quadrant plate 7 in the path of movement of thebeveled edge 11 and lug 12 on the arm 10 is a lug 13 adapted to be engaged by the beveled edge 11 of the arm 10 inthe' initial movement of the latter over the adjacent faceof the quadrant plate to disengage the dog from the adjacent tooth and, in the continned movement of the arm 0, to be engaged by the lug 12, to swing the throttle valve lever 1 to valve closing position whereby the flow of steam from the steam dome of the boiler to the engine cylinders will be cut off. In the present instance, an electric motor 1 1 is disposed above the quadrant plate 7' and suitably fastened to the boiler and the armature shaft of such motor is disposed in a vertical plane and has the lower end thereof equipped with a pinion 15 meshing with the teeth 9 on the diskS whereby, in the operation of the motor, motion will be transmitted to the disk 8 to swing the arm 10 over the adjacent face of the quadrant plate to unlatch the throttle lever and move the latter'to valve closing position. The pinion 15 is splined upon the lower end of the armature shaft of the motor 11 for vertical sliding movement thereon and is provided with an upwardly projecting hub sleeve 16 surrounding the shaft and fixed;

thereto bymeans of a set screw or the like is a disk 17, while interposed between the' confronting faces of the disk 17 and the pinion 15 is the interconnecting member of a' yoke 18. The upwardly projecting limbs of the yoke 18 are disposed within the forked end 19 of a lever 20 fulcrumed upon a post 21 disposedadjacent to the inner edge of the segment. A coiled expansion spring 22 isinterposed between the lower side of the lever 20 and a suitable support and acts upon such lever to force the forked end thereof downwardly and so hold the pinion 15 in mesh with the teeth 9 on the disk 8. A portion of the lever 20 between the pi 0t 21 and the forked end thereof lies adjacent to the uppersurface of the quadrant plate 7 and parallel therewith and is disposed in the path of a wedge-shaped block 23 con nected with the upper face of the arm 10 at the forward edge thereof, such block having the rear end thereof equipped with an upwardly projecting stop 2-1. By means of this construction, it will be seen that when the motor 1 1 is energized and the arm 10 swung o\ er the quadrant plate to unlatch and swing the throttle valve lever, the wedge block 13 will ride under the forked end of the lever 10 thereby swinging the latter about the pivot 31 against the action of the spring llto elevate the pinion-1.5. thus disconnecting the motor from the disk and rendering the arm inactivesucceeding the closing of the throttle valve. the stop 2t abutting the adjacent edge of the lever 30 ,marginal edge thereof.

to prevent undue swinging of the arm 10.

Connected with the upper end of the armacord 27 thereby opening the whistle valve so that the steam will sound the whistle, the whistle notifying the train crew of the operation of the motor.

28 designates a vertical shaft having thelower end thereof suitably connected with the stem of the engineers brake valve and lixed to the upper end of such shaft is a disk 29 having a partially circular row of teeth 30 formed on the upper surface at the In the present instance, an electric-motor 31 is disposed above the disk 29 and has the armature shaft thereof disposed in a vertical plane. Splined to the lower end of the armature shaft is a pinion 3'2 meshing with the teeth 30 on the disk 99. The motor 31 is mounted upon an appropriate support and pivoted to such support is one end of a horizontal lever 33 connected through the medium of a pin and slot corincctiortitt with a collar 35 fixed to the upper face of the pinion 32 and surrounding the armature sha ft of the motor 31 concentrically thereof. The free end of the lever 33 terminates abovethe disk 29 and formed integral with such end of the lever is a disk 36 arranged concentrically of the axis of the disk 29 and formed with a radially extending lug 37 disposed in the path of movement of a wedge block 38 fastoned to the upper surface of the disk.29. A spring 3 acts upon the disk; end of the lever 33 to hold the disk 36 and the lever 33 in normal position. lVhen the motor 31 is energized, the pinion 32 meshing with the teeth 3 on the disk 29 rotates the latter to revolve the shaft 28 and so actuate the engineefis brake valve to a position to effect an application of the brakes. As the disk 9 rotates, the block 38 rides under the lug. 37 and engages the latter with the effect to swing the, lever 33 and so slide the pinion 32 out of engagement with the disk 29 thereby disconnecting the motor 31 from the sha ft 2 Projecting upwardly from the disk 29 adjacent to the marginal edge thereof are pivot \ars t0 and pivoted between the ears {.0 is a handle. :1 having the inner end thereof disposed below the disk 36 on the lever 33. By means of the handle 41, the parts may he restored'to normal position by the engineer.

'lhe motors 11 and 31 are connected in series or parallel with a partial electric cirthat was conductors 2 between-the lines of rails of;

the trackway. -'-A coiledexpans'ion spring 48 has one end bearing-upon the upper surface of the arm 45:and the-opposite end se cured to the-adjacent-portion of the frame a of the locomotive and acts to hold thetrolley wheel in frictional engagement with the, T conductors 2, while surrounding'the arm 451- is a substantially U-shaped yoke'49 fastened to an appropriate support and acting to:

limit the downward movement of the arm 45 under the action of the sprin'48 so as to avoid mutilation of the tro ey wheel- ,and arm as the ear passes over switches,

grade crossings and the like. A red lamp 50 indicative of danger is preferably connected in parallel. in the partial circuit 42.

, The conductors 2 are connected with a feeder arranged parallel with the trackway and having one terminal thereof connected to one side of a source of energy, the opposite terminal of such source of energy being grounded. I

connection with the accompanying drawings, the construction and mode of operation of my invention will be readily apparent. The connection between each conductor 2 and the feeder includes a switch which maybe under-the control of the signal towerman of asignal blade of the ad- 40 jacent block signal and when the block sig- 11:11 is set at danger the switch is closed, while when the signal is at clear the switch is open. Should a train run into a block against a set danger signal, the trolley wheel +7 engaging the particular conductors 2 and the particular wheel and axle connected with the car carried partial circuit 42 will place the car carried partial circuit in communication with the source of energy thereby forming a complete circuit and energizing the

motors

14 and 21 whereby the throttle valve and engineers brake valve will be actuated as previously described to bring the'train to a standstill. While I have herein shown and described one preferred form of my invention by we of illustration, I wish it to be understoo that I do not limit or confine myself to the precise'details of construction herein de- 00 scribed and delineated, as modification and variation may be made within the scope of the claims without departing from the spirit of the invention.

I a claim es 1. In apparatus of the class described, the

, some up n oneohtlie-a'x esp thelocomotiveas at "andtheoppositeftenmina l connected' with an combination. with "the throttle; valvelever .and quadrant plate ofa steam locomotive,

of arm movable over'said'quadrant late i and adapted to unlock and swmg'fsaid t irot tle valve lever to valve closing position,'-a

gmotor for operating said arm, mechanism" holding said'motor-normally in drivingiengagem'ent with said arm, and means operf able torender said mechanism inactive sue-'- needing the" movement of said armto valve closing position. Y

2. In apparatus of the class described,the combination with the throttle..valve--'lever and quadrant. plate of a steam locomotive, of wanarm movable over said quadrant plate 80 and adapted to unlock and swing said throttle valveilever to valve closing position, a motor-for operating said arm, mechanism holding" saidmotor normally in driving engagement with saidarm, and means eper 5 able from said arm to render said mechanism inactive succeeding the movement of said lever to valve closing position. v

3. In apparatus of the class described, the combination with the throttle valve lever and quadrant plate of a steam locomotive, of an arm movable over said quadrant plate and having the outer end thereof beveled and formed with a lug, a lug on the latching dog of said lever disposed in the path of v movement of thebeveled end and lug on From the foregoing description taken in said arm, and means for'swinging said arm whereby'the beveled end thereof will engage j the lug on said dog and disengage the latter from thequadrant in the initial movement of the arm and the lug on the arm engage the lug on the dog in the continued movement of the arm to swing the lever to valve closin position'.-

apparatus of the class describ emj the l(it gage the lug on said dog and disengage the lla latter from the quadrant in theinitial movement of the arm and the, lug on the arm engagethe lug on the dog in the-oontiiiuedf moveme'nt of-the arm. to swing the lever to valve closing position, andmeans or dis; 13o connectingsaid arm hem the operat ng""" means thereof succeeding the closing of the throttle valve. p I 5. In apparatus of the class described, the

combination with the throttle; valvelevr 1 and quadrant plate oi ajsteam 'locomotive, of an arm movable over said quadrant plate and having the outer end thereof beveled.

and formed with alug, a lug on the. latch-,

lithe 1'- a 1m ing dog of, said lever disposed irlthe path a gear wheelvsecured to said element conof movement of the beveled end and lug on said arm, means for swinging said arm whereby the beveled end thereof will engage the lug on said dog and disengage the latter from the quadrant in the initial movement of the arm and the lug on the. arm engage the lug on the dog in the continued movement of the arm to swing the lever to valve closing position, and means operable from said arm to disconnect the same from the driving means thereof succeeding the closing of the throttle valve.

6. 1n train stopping apparatus of the class described, the combination with a controlling elenient movable about an axis, of

centrically of the axis thereof, a second gear wheel meshing with said first gear, a motor connected to said last-mentioned gear wheel, means for energizing said motor to rotate said gear wheels and operate said controlling element,- means for sliding said secondnamed gear wheel longitudinally of its axis to disengage the first-mentioned gear wheel, and means carried by the first-mentioned gear wheel and movable therewith to engage F. W. MORTON, J. N. BOSANG.