US869785A - Electrically-operated signal for railroads. - Google Patents

Electrically-operated signal for railroads. Download PDF

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Publication number
US869785A
US869785A US37337507A US1907373375A US869785A US 869785 A US869785 A US 869785A US 37337507 A US37337507 A US 37337507A US 1907373375 A US1907373375 A US 1907373375A US 869785 A US869785 A US 869785A
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Prior art keywords
block
signal
wire
train
arm
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US37337507A
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Helena J Jones
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Helena J Jones
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal
    • B61L3/02Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/10Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using current passing between devices along the route and devices on the vehicle train
    • B61L3/106Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using current passing between devices along the route and devices on the vehicle train with mechanically controlled electrical switch on the vehicle

Description

H.J.J0NES. BLBGTRIGALLY OPERATED SIGNAL POR RAILRoADs.-y
APPLICATION FILED MAY 13, 1907.
@Wenko-a HELENA J. JONES, OF BALTIMORE, MARYLAND.
ELECTRICALLY-OPERATED SIGNAL FOR BAILROADS.
Specification of Letters Patent.
Patented Oct. 29, 1907.
Application filed May 131907. Serial-No. 373,375-
To all whom it, may concern:
Beit known that I, HELENA J. JoNss, a citizen ol' the vUnited States, residing at Baltimore, in the State of Maryland, have invented certain new and useful lm- .provements in Electrically-Operated Signals for Railroads, of which the following is a specification.
This invention relates to improvements in electrically-operated signals for railroads. v
One object of the invention is to provide an improved arrangement of block signals for railroads which will be automatically operated by the movement of the trains when entering and leaving a block and the operation of which will be effected automatically without in any way depending upon the usual signal of operators or the engineer. I
Another object of the invention is to provide an arrangement of devices which may be operated automatically in connection with the signals so as to effect the operation of the air brakes on a train that enters a block when the signal is in the danger position and during the presence of another train in the same block.
The invention may also be as readily applied to guard a train vwhen approaching a misplaced switch, crossing or a draw-bridge.
The improved invention is designed to cause-the setting of a danger signal at the entering end of a block as the train passes in, and to maintain' such danger signal until it leaves the other end ofthe same block.
The, invention consists in the novelconstruction, combination and arrangement of the devices-and the electric circuits connected therewith as will hereinafter be described and particularly pointedout in the claims.
The accompanying drawings illustrate the invention in which,-
Figure l shows a diagrammatic view of the device as applied to a railwaytrack. Fig. 2 shows a detail side elevation ofthe signal mechanism, and Fig. 3 illustrates a diagrammatic view of the connections on the locomotive or other vehicle.
In illustrating the invention I have shown such mechanism and electric circuits connecting'the same to operate the signal atthe entrance end of the block and to also guard the other end of the same block in case a locomotive should attempt to eutersaid latter end during the presence of a train in the bl0ck. In case of a double track road where trains-travel in one direction only on a track, the form of device and connections as shown will be sufficient, but in case of a single track .road the devices and connections will merely be duplicated,-portions of one rail being used for operating the signal at one end of the block for trains going in one dithe rail 1, may be continuous and secured to the crossties in the usual manner, while the rail, 2, is to be provided in each block with a plurality of insulated sections. I
In the present instance the drawing illustrates portions of two blocksl which are designated by numerals 3 and 4.
Adjacent the entrance to block, 4, therail. 2.15 provided with short rail sections, 6, ,7 and 8, which sections are insulated from each otherand the sections 6 and 8 of 'which are both insulated from the rail 2. At the opposite or outlet end of the said block, 4. the rail, 2, is further provided with short rail sections, 9 and l0. Thus it will be seen that each block is provided with insulated rail sections at both ends and the signal devices are arranged so that there is no connection whatever between the signal of a givenblock and the signals of the blocks at either side of said given block as will presently be clearly shown.
All of the short rail sections are of such length that the locomotive, motor'or car will lap over from one section onto another or next adjoining section for the purpose oi completing a circuit as will presently be described.
A battery, 12, is suitably located with respect to the two ends of the same block and this battery is to supply sutlicient current to energize suitable electro-magnets y to operate the signals..
It is to be understood'that the signal mechanism may -vary in construction, and any suitable construction that will permit of being operated by magnets, may be employed, but in the present instance, this device comprises a suitable metal base, 13, in which. the lower end.
of a vertical shaft, 14, is mounted so as to revolve therein. The upper end of this shaft is provided with the signal arms or blades, one or" which, l5, will be white and the other, 16, red. For night signaling a lamp, 17,
and a segment gear, 20, is pivotally mounted so as to meshwith and operate the shaft-gear so as to impart a partial rotation to said shaft as will presently be described. .This segment gearis provided with a laterally-projecting arm, 2l.
Above the gear, 19, the shaft carries an arm, 22, and theouter end of this arm when the shaft is rotated so that the red signal arm, 16, is displayed to indicate danger or a closed block, will contact with a yielding contact plate, 23, on a stationary conductor plate, 24. When however the white signal, l5,` is displayed the arm, 2l, will be out of electrical engagement with the contact plate, 23.
Within `the well or receptacle, 18, are two electromagnets, 25 and 26,-one at cach slde'of the arm, 2l, of
the segment gear, and the purpose ol' each magnet is to 'attract the arm, 2l. as either magnet becomes energized, so as to inoye the said arin in the direction ol' thtI energized, niagnet and thus cause the signal shaft to bd partly rotated.
At the entrance to the block, 4. lprovidc a short contact plaie'. 2T, and this plate is to be connected eicctrically to the contact plate, 24, in the well. i8. so as to effect an operation of a suitable valve on the locomotive to operate the air brakes as will be hereinafter explained,
At the outlet end of the saine block. 4, l provide a Contact plate, 4S, which latter plate has position atljacent to an insulated rail section, ll.
Snpposing the block. 4. to be clear; a train upon entering will iirst pass over the rail section, tj, without establishing a circuit, because the signal niecininisin at. such time is in thc safety position. but when the locomotive laps over sections T and S. a circuit will be established as i`t,llo\\^s.i`ron1 section. 7. through wire. lill. to the wire, 25'. oi the battery, then from rail section. S. through wire, 3l. to thtI danger magnet. 2li. and from the latter through wire, 32, to the battery wire, 2li. it will thus be understood that when the locomotive laps over the rail sections, 7 and it closes tite circuit just described and energizes the magnet. 2li. which latter will draw the arm. 2l, and thus rotate the vertical shaft to thc position shown in Pig. and while in this position the red or danger arm. lo', oi ih e signal will be displayed. 'lhis position of the signal will be maintained so long as the train remains in the block. 4, and it will be noted that when in this position the arm, 22, will be in contact with the spring plate, 23. '1I' while in this position asecond train should enter the block, 4, another circuit will be established which will cause the v operation of the air brakes on the second train and thus cause said second train to be stopped. This latter circuit would be as iollowsr-from wire, 2S, o1' the battery through wire, 30, to wire, 33, to rail section. ti, through the wheels ofthe locomotive to a magnet. 54,l in the cal) through wire, 35, to a contact roller or brush. 3G, de-
pending roni the locomotive, then back through plate, 27, wire, 37, to plate, 24, then through spring plate. 23, arm, 22, shaft, 14, base, 13, and by wires. 38 and 32, to battery wire, 29. By energizing the magnet, 34, on the locomotive a trip catch, 39, will be operated to permit the valve arm, 40, to drop and'by the. sluiting of the valve cause a venting oi the train pipe and thus operate the air brakes in the well known manner. '1f on the other hand, only-the one train has passed into the block, 4, the signal devices and circuits will remain as first described until the train is about to leave the other end o f the block, at which time the wheels of the locomotive will establish a circuit through the rail sections, 9 and l0, and a circuit will be established that will change the signal at the ent-rance end oi the block tosaety and perinitanother train to enter,'-this latter circuit will be through wire, 40, that runs i'roin section, 9, back to the wire, 32, and battery wire 29, and from rail section, l0,
l5. to the open block or safety position. Now let it be presumed that a train has passed into the block, 4, andl the signal has been set to danger, as shown in Fig. 1, and while the train is still in the block another train enters the opposite end of the block. cuit would be established by the locomotive through the rail section, 1l and wire, 44, to the battery wire, 2S, and from the rail section, 11, through the wheels of the In such an event a cir-` locomotive to magnet, 34, on the locomotive which would become energized and operate the brakes through the wire, 35, roller 3G, contact rplate 48, then through wire. 43, to wire` 45. and to plates, 24, and 23, arm 22, shaft, i4, base. i3. wire, 3S, to wire. 32, and back to batery wire. 29. By this latter circuit the air brakes on the train entering the exit c nd of the block. 4, would be applied.
It will thus be seen that in my invention each blocky signal and its connections are separate and independent l'roin the signal devices in the blocks at each side of it. and therefore the failure oi' a signal in one block would in-no way interfere with thc signal in the adjoining blocks.
Having illus described my invention what I claim as .new and desire to secure by Letters Patent isf,-
i. A railway block signal comprising.' a plurality of insulate-'l rail sections at one end of the block, n signal operating' arin at the saine .end of the block; 'an electro-magnet fit .onesitie ol' tite said arm :.direct electrical connection -oetween ontl oi said rail sections and said magnet; a dl' rect electrical connection between said magnet und the source ol electrical energy: a direct electrical connectiony between another ruil section :it the sante end of the block 'ind the source ot' energy whereby a circuit toset the signal muy he'estabiishtal by connection entirely at the operating 'enti of the block; a second nnte-net at the sinne end of the block :ts-'said operating arm connections between said latici' magnet and the source ol' enera'y. und means at the distant end ot' the said block and in electrical connection with said latter muguet whereby to energize said latter magnet to change the said signal arm.
L, A railway hloek signalv comprising a plurality ot' insulaied ruil sections at the entrance to a block a source of electrical energy; n lmagnet in electrical connection with one, oi' nid rail sections; a connection between another ot" said rail sections and the source oi? energy; a signal device operated by said magnet to set the danger signal and to make nu electrical connection between the signal und source ot energy; a contact plate also at the entrance to the block; n connection between said contact plate and ibo signal device during the period that the signal is in the danger position, and electrically operated devices curl'lml by the motor vehicle. for operatingithe air brakes said de vices beingr operated only by :i current that can pass through the signal device while the latter' is set in the danger position. Y
Il. A railway block signal comprising n pali' of magnets nt the entrance end of a block; a signal device having,r an operating arm movable between said magnets; :1 source of electrical energy; insulated rail sections; connections between said rail sections, magnets and source of energy for settingr the danger signai'as a train enters one end of the block; a contact plate at the otherend of the block; connections between said contact plate and the source of eneruy, and electricallyAoper-ated devices on the Imotor ve-
US37337507A 1907-05-13 1907-05-13 Electrically-operated signal for railroads. Expired - Lifetime US869785A (en)

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