US1053899A - Train-stop system. - Google Patents

Description

J. H. BOOM.

TRAIN STOP SYSTEM.

AyPLxcATIoN FILED JAN.10,1912.

1,053,899, Patented Feb. 18, 1913.

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UNITED STATES PATENT oEEioE JOHN I-I. BOOM, OIE' NEW YORK, N. Y., 'ASSIGNOR OF TWO-FIFTHS TO FRANK BACH AND NINE ONE-HUNDREDTHS TO KAEL EMIL WILHELM BICHEJS, OF NEW YORK, N. Y.

TRAIN-STOP SYSTEM.

Specification of Letters Patent.

Patented Feb. 18, 1913.

Application filed vJanuary v10, 1912. Serial No. 670,410.

`'citizen o;f the United States of America,

residing at 'New York, in the County of New York and State of New York, have invented certain new and useful Improvements in Train-Stop Systems, of which the following is a `specification,

The present invention has for its object to provide a train stop system of the automatic type, whereby vehicles running on a single track or on intersecting tracks will be prevented from colliding when approaching'one another wit-hin a given distance.

In my new system I make use of two electric conduct rs which extend preferably in the middle of the track and which are divided in equal sections of a mile( or` more, a section of one conductor in one block being conductively connected tov a section of the opposite conduct-or in the next block. Each train is equipped with a battery or other electric source, aA motor operatively .Connected to the power controller and brakes, a. commutator, two relays, a series of contact shoes, of which twoare adapted to slide Aover the said electric conductors and l the others are adapted when the train is about. to enter theblock next to the crossing to come into contact with shortrconductors conductively connected to the track, and electric connections between the electric sourceA andA the different parts named to bring about the effect to be presently described.. y

My invention is diagrammatically illustrated in the accompanying drawing.. which forms ,a part of this specification' and in which similar reference letters denote cor-v responding parts, Figure 1 representing a single track system and Fig. 2 showing the connection of the motor to. the power controller and brakes.

With reference-tol*1 igs. 1 and 2, let A and B`denotethegtracks, crossing one another. Let A', A2 denote two electric conconduct-ively connected in adiagonal .line

to a section of the opposite motor line in Aindicate the direction of travel.

the preceding block and at the crossings the intersecting sections of the battery line on the track A and the motor line on the track B and vice versa are conductively connected. Let`T, T2 and T3 denote trains or cars, of which trains T', T2 are on the track A and Ts'is on track B and let the arrows train is equipped with the Same parts, I shall for brevitys sakeldenote thesame parts by corresponding reference letters and numerals, bearing different exponents, thus the parts of train T bear the -exponent 1, those of train T2 bea-r the exponent 2 and those of train T3 the exponent 3. I shall now` describe only the parts of train T', it being understood that the same description also applies to the other two trains shown, with theexception that' references with the corresponding exponents'l are to be substituted for those of train T. f

a denotes an electric source, b', a motor which may be operatively connected to the power controller and brakes of the train in any suitable manner. A

0 denotes a commutator for. changing the direction ofthe. electric circuit in accordance with the direction of travel of the train. Sucheommutator'is necessary, for without it, when the direction of travel of the train is reversed it-would operate in- 4stead of rearwardly, as intended, on a train ter in.which` direction the train. travels it will always operate on a rear train-running .on the same track when coming within a given distance therefrom.

m', y Hdenote -a 'pair of electromagnets arranged opposite one another and d' 1s the armature fulcrumed at a `point between the Vtwo elect-romagnets and forming with the latter .and a contact point ve a relay. j. denotes an electromagnet which with the contact points c, Zyforms another relay.

E', D` are contactshoes adaptedv to travel' along the sectional conductors of the track. 'f gr', It and i l'are contact s hoes which .normally have-noVv functiongexce'pt, as will be seen, when the train entersior is 4about to leavethe block nearest to the rossingand Since each Y when said shoes come into contact withshort Vrails-m, n, a of the track A (or. correspondingly. m", a", yob on track B). The electric connections are indicated by referv ence numerals. The commutator comprises an adjustable arm having insulated sections and contact points p', q', r', s', t', u', c', and 'w' arranged in pairsso that the arm when in ward train T'.

, The current Hows from the '-l- -pole of the battery a' .along Wire l to the contact point g' of the commutator, thence 4passing over to contact point p and thence to the 'y contact shoe D' resting on a section of :the

conductor A2 which I call .the battery line. The/train T2 having approached T' so far that its contact shoes E2, D2 vcontact with the sections in the pruned-ing block of the conductors A', A2"the current is allowed to pass lover tothe I.preceding section -of the opposite motor vline A' and to flow along that section to the contact shoe E2. From here .it flows along wire 11.2 to contact point s2, passing over to contact pointr2, thence along wiresv92, 82 to the armature d2 of relays m2, y2, and beingv in contact withI point e2, itvpasses to vthe latter and alongv wire 122, .through the motor b2, along wireA 102 tothe track, along' the latter to the wheels of train T and through wire 13 to the pole of the battery a'. v'The motor. b2 of train T2 by the circuitA of the battery -v a of train T' will be set in. operation and will perform' the desiredI function in operating the brakes .and power controller ofv said train` T2 in any lsuitable manner. Ifl the traing-T2 is farther from train VT' than the given distance, that is to say, its contact shoes or-trolleys E2, D2 'are not on the sec` tions next preceding those on which the contact pieces E', .D of train T' rest, thenj there is no electric connection between the contact `shoe D of train T and the contactshoe E2 ,of train T2 vand the motor of the latter. will: not be operated.' On the other hand, no matter where the train T2A stands` relative to train'T the latters motor will not be affected by the batteryof the former.

Vi-TeA `will now considertthe operation of thev trains T', T3 on the cross tracks A, B.

At 'points near the beginning of the sec-V tions of the conductors vnext to the crossing I provide on the tracks A, B short rails m2n' and my, n respectively. Then 11s/henl the train T3 arrivesfirst at the given tance from the crossing its battery" will be ready to operate the motor of train T' arriving later at the block next to the crossing on track A, the current of the battery a3'.

flowing from the pole of the latter along wire Z2, contacts q2, p3, wire 23, contact shoe D3, conductor B2, conductorl A', contact shoe E', wire 11,', contact points s',`r, wires 9', 8', armature d', Acontact e', line 12', -motor b', wire l0', to track A, thenceback to l track B, wire v132? to pole of battery as'. The 'motorof train T will befoperated. If train Ta is first'toenter on the block near-` est the crossing, it will in the aforenamed manner be allowed to operate train T', if the latter has advanced so far'that its contact shoe E' enteredl on the section of the .h

block nearest the crossing. Simultaneously with the contact shoesE, Denter-ing'on the forward section nearest the crossing, the contact shoe g is adapted to come into conl tact with the short rail ma. In conseguence thereof, and because of'the train T2 Abeing first on the block nearest .the crossing, a second battery circuit of train T? will be closed, the current flowingfrom the -lpole of saidbattery alongwire Z3 to contacts g3, .I

p2, wire 22, contact shoe D3, conductors B2,

A to contact shoe E', wire 11', contact points s', 1", wire 9', 8', relay j', cont-act shoe.

g', rail m to track A, thence to` track B back to' the poleofbattery b3 along wire 132. In consequence' thereof, the Aarmature of relay. y" will befattractedand contact-.between point c', Z' broken. The consequence of `this will be that train T could not ren- -der itself immune from the influence ofthe train T3, e. g. it @could not prevent the bat l tery a2 of train T3 operating its motor b. On the other "hand, the train T2., 'rn-which thel connection .of contacts 15,113 is not broken, renders itself immune as soon as its I contact, shoeY f2 arrives at the short rail nl.

For at this point a circuitof its Vown bat` tery passing'through its relay :v3-is closed, the current flowing from the -lpole of the battery a3 alongivvires 12, 33, 42, to contacts 102, '02, thence through lwire 53 to relaym2, thence to contacts Z3, Ica, thence along Wire 72, to contact shoe f3, thence through rail n to track B, thence through wire 133 to the .f pole of battery a3. By reason of this circuit, the armature d2 is-attracted and becomes disconnected from the contact point e3. Now, if thetrain T owing toits inertia still advances, lso that its contact'shoe D' enters on'the forward section of the battery line, it can have no eect` on the train T3 because lthe circuit` fof battery aremains open and train T3 may proceed, while train the .armatures d', cl3 to their normal position. When th train T3 (referring to aboveexample) reaches the rail o, and its contact shoe 113 getsA into contact with it, then its own,battery circuit willbe again' closed, the current flowing from -lpole along wires 13, 33, contacts u3, t3, wire 153 through relay g3, wire 163, contact shoe 3, rail o", track B, Wheels of the train T3. to the T-F pole 'of the battery (1.3. In consequence thereof, the armature (Z3 will be attracted in the opposite direction and make again contact with point e3. 'Vhen the train is turned around to move in the opposite drectionQthe same will take place-by adjusting the arm of the com-v mutator c (c2 or '03) to contact with the opposite contact points not marked by reference letters.l i

.Fig 2 shows by way ofexample a. mode of .operatively connecting the'motor of a train with the corresponding power controller P and air brake'K. The controller llever L is suitably connected to a pistonv rod 'R of a piston R working in a'stationary.

air cylinder C. The piston ,R is operated fromthe motor I) by a set of. gears Grand a rack M formed on the e'xtension of the rod R, so that vwhen the motor b is .setin motion by the'battery circuitof another train, it

. lever L intothe starting position may be obtained-by a spring S.- Thislreturn movement of the lever will be .counteracted by the vairpreviously drawn into` the cylinder through the suction valve H.

What I claim and desire to secure by Letters Patent is:

1. In a train stop system, the combination 'with atrack, of two sectional electric conductors along the track, dividing'th'e lat-Y ter into uniform blocks and of which a seca. tion inone block of one^conductor`isconductively connected to a section in the next block ofA the other. conductor, a moving lvea circuit .breaker means foroperating lthe latter', 'one pole of ed to .the track/and the -other to the second i conductor, said connection leading through vsaid circuit breaker, means conductively connectedto the track, means on the vehicle vadapted tocontrol said first' named means and to make contact with the second named 'means, and an electric connection between said electric source and said third named lmeans, 'se that when contactfis made between said second and third means the 4said circuit said motor beingjconnectfbreaker will be actuated to break the-connection between said motor and .the said second conductor.V

2. In a. train stop system, the'vombin'ation with a track, of twoA section-al electric conductors along the track dividing the latter into uniform blocks and of'which a'section in one block of one conductor isconductively connected to a sect-ion in the next block ofH t-he other conductor, a `moving vehicle having an electric source of which one pole is connected to the track and the other to the one of said sectional conductors ,'a.motor, a -circuit breaker, means for-operating the latter, one pole of -saidmotor being-.conductively connected to thetrack and the other pole 'to the said other conductor, 4said connection leading through saidcircuit. breaker, a contact rail adjacent and conductively connected to the track, a contact point on the vehicle adapted to make contact with said l rail, an electric connection between said electric source and the said contact point, so arranged that when the circuit is closedy by the contact of said contact oint and rail, saidcircuit will control said first named means, and-a second circuit` breaker interposed between said first named means and said contact point, so that when the connection between said first namedl means and said contact point is broken bysaid' second circuit breaker the contact made `between said contact point 'and vrail will Abe ineffective and the breaking of the connection between the motor and the second conductor is prevented. y

' In a; train stop system, the combination `with a track, of two sectional electric conf ductors along the track, dividing the latter `into uniform blocks and of which a section in one block of one conductor is conductivelyconnected toa section in thenext block of the other conductor, a moving vehicle having an electric source of which one pole is connected to the track and the other to'one of said sectional conductors, a motor,a circuit breaker, electrical means vfor operatinglthe latter, lone pole ofthe motor being conductively connected'` to the track and the'other pole thereof to said second conductor, 'said connection leading through said circuit breaker, contact rails conductively connected to the .track, two contact points on'the vehicle adapted to successively make contact with the respectivel contact rails, an electric connection between the electric source, said contact is made between the llast named conbreak the connection betweenthe'first named nieans'and the {ii-'str namedcontact point.

4.' In a train Stof) 'systcnl,'tl1e combination' with a track, o-'two sectional electric conductors along Athetrack, dividing the latter into uniform blocks and of which a section in oneblock of one conductor isconductively connected tojalsectionin thenextfblo ck of fthe other conductbiga moving vehicle hai'- 5, QIn-atrafinistipysteni, thefconibination' Witilfa trimmof ingr an electric ing anfelectri'c. source of wl'iichone pole is connected. to' the track; andv the other to one- 'Qfsa1'd-gsectl0nal conductors, a motor, a circuit br eaker, separate electrical nieans for opening and `closing the latter,"one pole 'of the motor beingconductii'ely connected to the' track and'the'othe'pole thereof to the said second c ondl'lctor, said connection leading throngh said.: oircuitbreaker, two contact rails .conductively connectedto and arranged at different-places alongth'e track,V two Acontact pointson the vehicle adapted to Y. successively -inake c"ontact V'with the -respec Vtive 'contact rail's, elec-tric"eonnectionsbetweensaid electricsourceand said two contact' points, said connect-ions' leading through. ligand A closing inea ns resaid electrical spectively,swhe eby' ,when-one 'of said contact. Apoints In( when the other co t'act 1-p'oint '1nakes contact withits contac ri thecircuit'breaker will o -sectional 1electric. conductors-along into -uni'fornih lts-and of which a section in One block o coridctor'is conductively connected to n thefnext block of the other `co o aiiioying 4vehicle havuree ofsfwliic'lrone pole is connected tofthet'rack andthe other to `one cpies :of tiiisfpaieii liliaiqbe obtained for e trackj dividing:l the latter ofsaid sectional conductors,a. rnotor, a circuit breaker, separate electrical means for opening andclosing the latter, one pole ofsaid vmotor 'being conductively connected'to theV track and the other polethereof to the said other conductor, said connection lead-A ing through said circuit breaker, tlnee 'con tact points carried by said \'el1icl e, three donf' tact rails therefor conductively `connected to the track and of which two are arranged adjacent to each other andjone at a distance" from the saidtwo contact points, thesa'id contact points being adapted to successively corneinto contactwith their respective. rails,

an electric connection between said' electric source and .one of -said adjacent contact points, an electric connection Vbetween the electric source and the said th'i'rd Contact point, 'said electric connectionsleading through aforesaid electrical (mening),r and closing means respectively,.a second circuit breaker interposed between the aforesaid one of the two adjacent Contact points and the s aid electric Ameans for opening'thev first f mamed circuit breaker, electrical means' for operating said second .circuit A.brea-l` ,r, an electric connectionleading from the other 01 the two adjacent Contact points and through lsaid second circuit lil-cirkel-.operatingmeans` "to said second conductor-.s that when contact and its respective-contactrail lwhile the sec'P ond conductor is energized by' a'circit Howing through it-and thetrack the said s ec'on'd" 'eircnit breaker ,will,be ca'u's `edf to 'the is ina-de between the last-'trained contact ntactm-'ltli its resimctive aker Vwill be opened and connection between the opening ineans of the first named circnitb'r'eaker' and the 'tirst'vof the two Aadjacentcontact- -ponts A In testimonyv whereof I aili my signature in presence of two witnesses. Y

JOHN "H. BOOM- `Witnessesz JOHN T. Carmona', .1 MAX F. DRAMANN.

ie cents each, by addressing' the Coxauiissioner ofilateixts. la'ahi'ngton,D` C.V

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