US1777825A - Electrically-operated track switch - Google Patents

Description

Oct. 7,1930. -G'.B ONTE f 1,777,825

ELECTRICALLY OPERATED TRACK SWITCH Filed Dec. 1, 1928 2 Shuts-Sheet 1 v lnvenfvr:

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Oct. 7, 1930. BONTE BLsc'rRwALLY OPERATED TRACK swncn Filed Dec. 1, 1928 2 Shuts-Shoot 2 lnv enfor:

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Patented a. 7, 19301 GEORG Boir'rE; oFfBEnLIN-sIE EnssrAnr, GERMANY, Assmuoa 'ro VERLEINIGTEB i EISENBAI-IN-SIGNALWEBKE ensnnrsonnrr I MIT BEsonR'Af xT R HAF-TUNG, o! BERLIm-s Ei/mNsszren'r, GERMANY, A coRroRA'rIoN OF, GERMANY a. i

E crmoAL v-ornnemn TRACK swmjcn y Application filedffiecember 1 19 28,S er1 al fio. 323,967, and iii- Germany A il 16, 192s.

My invention relates, to improvements electrically operated track switches.

secure or lock the tongues or points of track; switches 1n the end position, which is genjerally effected-by latchesJf- By my invention it is possible to incorporate the lock for v the switch tongues in the operating gear. Such aconstructionhas amongst othersthe special advantage,that alarge portion ofthe a box inthe known switchdrives is eliminated i or protected against the effects of the weath" er or mechanical injury from outside "by. i

stones or the like located betweenthe-rails. .According to my invention the arrange mentis' such, that for operating the' 'switchtongues an intermediatemember 7 is placed between the reversible motor and theswitch operating rod, which on the one hand transmits the power of-the motor to the operating rod and efi'ects its motion and on the other hand, after-the settingmotion has been com pleted, bringsabout the motion of the locking members, located inside the drive box, by a relative motion of the individual parts of the intermediate member.

The idea underlying my invention may be reducedto practicein various ways; for inistance by using asrelatively movable intermediate member a-transverse beamywhich normally would move "both rods attached to its ends one of which is connected with looking members.

tongues encounters a resistance, i e in the x termediate member.

the switchtongues a'ndithe otherfwith the Assoon as therodl coupled to the switch end positionof the switch tongue or point,

Q the other rod only ismoved by the connect: 'ing beam and the switch tongue locked thereby. Itis also possible to use adifien ential gear, such as an epicyclicgear or sun and planet wheielyasrelatively movable in An embodiment'of my invention employing anfepicyc'l'ic gear is illustrated] in the;

my specification;

In the drawings,

l shows the switchioperating i l p i diagrammatically in sectional plan, and a It is well known, thati't is 'necessaryto Figs. 2 tolO theconstruction and mode? of operation of theepicyclic gear or sun and planet wheel. i

j Referring to Fig. lofjthe drawingseM is h the mOtorWhichthrongh a countergearing V and theepicyclic gear UT drivestheunotor l the motor. These electric switches arehere merely diagrammatically indicated without their connection withthe rail switch mechanism, since those features arewell known in r the art, and are not'involved in the par- 'ticular features of the presentinvention The countergearing V consists ofa pinion V a "slidingcoupling R with the sliding wheel V;;,'Jwhich meshes with the outer gear wheel T .i

The construction and modeflof operation freelylupon the shaft G The gear wheel a T isb y'itshub rigidlycoupled with the outer wheel T;. The planet wheels T and T journale'd on 'therocker T mesh on the a '7 one hand with the teeth of the gear wheel T and on the other 'hand withthe teeth of the internally toothed rim G provided I a a within the casing G The hub of the rocker T uponwhich runsthe planet housing G terminates in coupling claws T which engage the claw recessesT of the gear wheel wheel T ineshes'with the rack N of the slide bar N. On the studs of the planet housingG is mounted the control cam G for the SWllJOl'lllGYBfSD and the locking-"mem- T with a little angular play. This ffgear face against excessive wear steel bolts i are inserted into them.

The motor rod N driven by the motor N1 is in known manner detachably coupled with the switch rod W by the switch trailing coupling A, as shown in Fig. 2 of the drawings. According to the position of the operating gear in relation to the track switches. the switch tongues may be connected with one or the other end of the switch rod. The trailing of the switch takes place in known manner by the switch rod W being moved towards the motor rod N by the car wheel flanges when the points are thrown over, whereby owingto the resistance of the motor rod N, which is held in the end position by the locking members G the roller A is lifted out of the notch A of the motor rod N, the spring A being deflected thereby.

The switch levers D controlled by parts of the gearing effect in known manner, as

by suitably operating electric switch M the changing over of the pole windlngs, as well 7 as of the safety groundings and the control current contacts, nothere shown.

The mode of operation of the described mechanism 1s as follows:

Figures 3 to illustrate different phases during the rotation of the planet or epicyclic gear. The operating and locking process is substantially as follows:

The motor drives through a countergearing V with planet or epicyclic gear T and driving wheel T the motor slide or rod N and through the switch trailing coupling A the switch rod or slide V and the tongues or points connected with it.

The switch rod W moves parallel to the motor rod N and possesses like the former at two places corresponding notches VV and N Only when the switch rod and the motor rod agree in their positions, the switch levers D controlled by the rim G of the casing are able to engage the notches and to effect the known switch movements. The notches become operative as controlling means only when the switch or point is forced open or breakdowns have occurred in it.

Special control rods may be provided for supervising the tongues, and the notches of these rods must correspond with the notches of the other slides or rods, as otherwise they would signal breakdown in the switch.

Fig. 3 of the drawing illustrates the inoperative state of the gearing in one end position of the switch. The switch rod is locked to the motor rod N by the locking member G through the switch trailing coupling. Figs.- 7 S, 9 and 10 illustrate the positions of the planet gear of the Figs. 3 to 6.

When throwing the switch into the other position the motor commences first to drive the housing G because the planet wheels T 2 and T transmit their motion originating from the gear wheel T to the toothed rim G of the housing. support for the planet wheels is stationary, because the rocker contacts with its claws T with the abutment faces T of the driving wheel T which is in gear with the rack N of the motor slide rod N, which is prevented from moving towards the left-hand side by the locking member G When the housing or casing G starts turning, the opening of the lock commences. The motor slide deviates from the inoperative position in the direction of the arrow by the height of the inclined cam face G of the locking member G propelled by the driving wheel T entrained by the rocker. The lock is undone when the locking member G has come in contact with the rack N as shown in Fig. 4. At this stage the motor slide or rod N is uncovered at N At the forcing coupling the roller A The rocker T serving as has reached the center of the notch, from the planet wheels T and T are forced to roll upon the toothed rim G so that the rocker T is obliged to move in the direction of the 9 arrow. The driving wheel T turns with the rocker and moves through the rack. N the motor slide with the coupled switch slide.

. The switch commences to move. The locking member G then slides upon the rack.

Fig. 5 of the drawing illustrates the state, when the switch is thrown over. The switch slide W has reached itsend position. The locking commences, after the stopping member T has encountered the face K and has thus come to rest. The driving wheel T continues to revolve and drives through the planet wheels T and T the casing or hous ing G The locking member G, then forces the motor rod in the direction of the arrow by means of inclined cam face G until the stop G encounters the face K as illustrated in Fig. 6 of the drawings. The driving wheel T is then carried around by the rack N across the play provided at T Together with the driving wheel T the motor slide N is moved so far, that the roller A is forkjointed to the forcing coupling, as illustrated in Fig. 2 for the end position of the switch drive according to Fig. 3, for in tance, so that the switch rod stands under the pressure originating from the forcing cou pling A.

When trailing the switch the power origi nating from the switch tongue is transmitted to the switch slide W through the switch rod. Since the motor slide N is held stationaryby the locking member G the trailing power becomes operative in the trailing coupling. The roller A is forced out of the notch A deflecting ,the spring A the mo tor slide N is displaced in relation to the switch slide W and the switch levers D are,

forced out of the notchesof the rod N, where by theelectric circuit to the control. magnets in the signal box is interrupted and indi cates the disturbance.

In order to couple the drive again with the switch, the switch lever is thrown over,

the motor drives the motor slide, the abutment of which encounters'the roller A and forces it into thenotch A a In this way the.

switch slide is coupled withthe motor slide, i. e. the switch or drive.

is possible to throw the switch by hand. it Various modifications and changes may be made without departing from the spirit and the scope of the invention. w I claim as my invention 1. An electrically operated track switch mechanism, comprising in combination an electric motor, an operating rod for transmitting the motor power to the switch tongues, and a planet gear interposed between said motor andsaid operating rod, one

wheel of said gear having means for throwing the switch tongue over during one part of its motion and "for lockingthe switch during another'part of its motion, the outer member of saidplanetary gear having a lock 1ngr1m,sa1d operating rod havlng an abutmember of said planetary gear havinga lockment member located in the path of said locking rimand permitting said rim and the abutment member to serve'as mutual abutments.

2. An electrically operated track switch imechanism, comprising in, combination an electric motor, an operating rod for transmitting the motor power to the switch tongues, and a planet gear interposed between said motor and said operating rod, one wheel of said gear having means forlthrowing the switch tongue over during one part of its motion and for locking the switch during another part of its motion, the outer ing rim, said operating rod having an abutment member located-in the path of said locking rim and permitting saidrim and the abutment member to serve as mutual abutments, said locking rim having a suitablyshaped cam surface to press the switch point is coupled with the",

In the event of breakdowns in the drive,

ing another part of its motion, the; outer member of said planetary gear having a looking rim, said operating rod havin anabutmentmember located in the path 0 said look ing r m'iand permitting said rim and the abutment member to serve as mutual abutments,

and an elastic element interposed between the mitting the motor power to the switch tongues, and a planet gear interposed between said motor and said operating rod, one

wheel of said gear having means for throw- 7 ing the switch tongue over during one part of its motion and for locking the switch dure ing another part of its motion, the outer member of said planetary-gear having a f locking rim, said operating rod having an abutment member located in the pathof said locking rim and permitting said rim, and the 'abutment member to, serve, as mutual abutments, said locking rim having a suitably shaped cam surface to press the switch tongue through said operating rod tightly against the pertainingraihand an elastic element interposed between the drive and the switch tongue and adapted to be compressed by the momentum of the motor after the switch point has come in contact with its pertaining rail.

In testimony whereof I. afiix my signature,

GEORG BON TE.

tongue through said operating rod tightly against the pertaining rail. u

3. An electrically operated track switch mechanism, comprising in combination an electric motor, an operatingrod for transmitting the motor power to the switch tongues, and a planet gearinterposed between said motor and said operating rod, one

wheel of said gear having means for throwing the switch tongue overduring one part of its motion and for lockingthe switch dur-

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