US811903A - Announcing device for railway-cars. - Google Patents

Description

PATENTED FEB. 6, 1906.

A. D. CLOUD. ANNOUNGING DEVICE FOR RAILWAY CARS.

APPLICATION FILED APR. 1, 1905.

4 SHrETS-SHEET 1.

PATENTED FEB. 6, 190B.

A. 1). CLOUD. ANNOUNGING DEVICE FOR RAILWAY CARS.

APPLICATION FILED 'APR. 1, 1905.

4 SHEETS-SHEET z. b

.No. 811,903. PATENTED P33. 6, 190a.

, A. 1). CLOUD. ANNOUNGING DEVICE FOR RAILWAY CARS.

' APPLICATION FILED APR.1, 1905.

4 SHEETS-SHEET 3.

No. 811,903. PATENTED FEB. 6, 1906.

A. D. CLOUD. ANNOUNGING DEVICE FOR RAILWAY CARS.

APPLICATION FILED APR.1, 1905.

4 SHEBTSSHEET nRrnon 1). choice. or DAVENPORT, town.

AWWTOUNGTIMG iDEWIIGIE FUR WIHLWAWHH$ Specificationof Letters Patent Patented Feb. e, 1906.

Application filed April 1, 1905. Serial No 253,377,

that the following is a full, clear, and exact.

description thereof, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in street-car announcing devices, designed more specifically for visually announcing the names of streets or other predetermined places where the car is scheduled to stop to receive and discharge passen ers. The device may also be employed eit er primarily or incidentally for the purpose of displaying adver-v tising subjectnnatter. L

The invention herein shownhas been do signed for use in connection with electrically-- operated cars wherein the motive current is received by the car from an overhead trolley; but certain of the improvements shown may be employed in connection with cars employing other means of receiving motive power.

S Among the features of my invention when used in connection with an overhead trolley is to laterally displace or shift the trolley-pole of the car at predetermined locations along the track, by providing lateral ofisets in the trolley-wire from a straight line, and to utilize the lateral motion of the pole for settin inoperation' the announcing device. Sue

offset portions of thetrolley-wire are located a'iijacent to the intersecting streets or other places to be announced. A portion of the mechanism herein shown by which the announcing device is set in operation by movement of the trolley-pole is a switch which opens and closes an unloc mechanism and a motor-circuit for the mec anism of the announcing device, and in some uses of the device the switch may be operated by any other acceptable actuating device.

Further objects of the invention are to improve and simplify the construction and operation of announcing devices in such manner as to render the same at all times accurate and adaptable for the work designed.

As shown in the drawings, Figure 1 is a partial longitudinal section of a car provided with a signaling device made in accordance with my invention. Fig. 2 is a plan view of Y a main and intersecting street, showing the current to operate the car.

' car-track thereon and the manner of laterally offsetting or displacin the trolley-wire. Fig.

3 is a vertical longitu inal section of theannouncing mechanism proper and its inclosthe operation thereof. Fig. 9 isa fragmentary detail taken on line 9 9 of Fig. 8. Fig. T0 is a view of some of the parts shown in Fi 6 .lookin from the opposite side of the loo g-disk .om that shown in said Fig. 6. Fig. 1 1 is a horizontal view of the switch controlled by the trolley-pole for setting the device in operation. Fig. 12 is a diagram of the several circuits for electrically operating the various parts of the apparatus.

As shown in the drawings, A, 2,- designates a street-car track, B a car thereon, and A thetrolley-wire from which is received is laterally displaced or offset at a, suchdis' placement being or more of the hangers at one side 0 t'er of the track. i

the cen- The trolley-wire effected by locatin the one.

1B designates a trolley-pole of any accept able'form, which is herein'shown as pivoted to the carat b and provided with the usual trolle -wheel I). f 1 1 g 1 C esignates as a whole my improved announcing device. It is located either at the end of the car above or at one side of the door thereof, as herein shown, or may be attached to .the top of the car near the middle thereof.

' The lateral displacement .of the trolleypole caused by the upper end thereof being swung laterally to one side of the center of the track, asindicated in Fig.- 2-, effects the opera- 'tion of a switch carried by the car, the openmg and closing of which-controls the current by which the announcing device is operated. In the present instance current is supplied from the trolley-wire to operate the announcing mechanism.- The switch .1) is shown in Fi 11, and itis located between the roof andce 1 bar w 'ch ispivoted at d in its casing l). and adapted for contact at its free end alternately with two terminalsd (P, included in theme.-

i s I of the car; It consists ofa straight tor and lock-releasing circuits of the announcing device. 'The switch is included in a sures aiuick opening and closing of the.

switch. 11 the resent instance the switch swung frorn side tozsidebymeans of an electroma et B 3 Oarriedby the part of the trolley which projects beyondits ivot.. The movement of said electromagnet om side to side acts to swing the switch likewis'efromv t e switch is, quicklithrown. 'ts by [-5 side to side, and

to and held securely at either of its a spring DP. As. hereinshown, the magnet Bus an, electromagnet and is included-m a pircuit which'receives current from. the troley. p ji roved announcln'gdevice embraces in genera .jterrns a strip of .thin inextensible.

materia'hupon Which'is dis layed. the. names ofthe streets or other sub ect-matter tobe announced, and said strip is. wound about:

suitable directing andoperatingrollers operated'by a suitable motor, whereby the stripis moved to successivelydispla'y the names oncharacters cal'riedthereby. The mechar ism contained asu table casing, one wallof whichfiislprovided: .with an opening through which the. names on the I strip are successively exhibited as thestri is movedv 'pastsaid opening. As-herein 8 Own, the

separated by partitions c -c.. One contains a the strip and 'winding mechanism, another the mot0r,=. and the. third controllingdevices for the winding mechanism. The relative arranglementof the arts and fofthe casing may, owever,-bewi ely varied; The .stripmechanisrnis ada ted to be normally locked so as to hold t e stripin apredetermined position after it. has been shifted windingmeehanis'rnisactuatedi 111. the con-,

struction shown two principal circuits are.

employed, including the two terminals d. (1,

associatedwith thQSWltChI), said. sw tch jactingsuccessiiely to close thelockereleasing'andf motor.;.'0ircuits. As. the parts, are "herein. shown-the strip is shifted to retire one name. and exhibitianother byene rotation of the 66 operation .of the same.

Referringnow to the specific construction. mechanism, it is -made as.

of the announcing follows:

E a strip on which" is exhibited.

the street-names or other subject-matter to casing lls'idivided. into three compartments by its motor toiexhibit. the name of a given. street; or. the him, and ineans are provided. for releas ng, such1locldng device just before the be announced ordisplayed and is located in the middle compartment of the casing C. Said strip is attachedat-its ends to upper and lower rollers E E respectively, which are journaled at their ends 1n the transverse partitions c c. The rollers are driven at the samespeed, they being connected by a belt e. One of the rolle'rs-to wit, the roller E, as herein ShOWD- *iS connected with and driven by an electric motor F, which-is reversiblein order tov reversethe-direction of movement of thestrip. The strip is engaged .between its ends by the rollers E 15? E of a tensionv device, Figs. 4 and 5, by which the exhibited part of the strip is maintained taut notwithstanding the. varying diameter of thelrolls upon whichand vfrom which the strip is wound andunwound. v The rollers E E are stationary and are journaled at their ends in'said partitions c c in any suitablemanner. Theroller E. ismounted in bearings ec, Figs. 3, 4, and 5, that are movablein a. manner to maintain the roller E. parallel with the rollas E and in a direction to take up the slack of the band or strip and tomaintain taut the part of the strip'exhibited through tlie opening inthe casing. The part of the strip so exhibited is that betweenrthe'upper roller E and the upper one of the stationary rollers of the. tension device, such part of the strip being arallel withthe front wall of the casing. As herein shown, saidbearings e haveendwise sliding engagementwith obliquely-disposed rods E 13 affixed to thecasing one at each end. thereof. Spiral contractile. springs E", surrounding saidrods and attached at their.

upper ends to the stationary part of the casingand at theirlower ends to said bearings c ,'tend to draw. the. movableroller E 111)- wa'rdl'y into the box in amanner to maintain'a tension on the strip. The greatest slack-.of thestrip occurs at a,.time the strip is contained in. rolls 'of equal diameters on both winding-rollers E. E Asthe diameter of the roll upon which the strip isbeingwound 1 1o gradually increases the slack of .the'strip takenup and. the; shifting tension-roller E moves downwardly toward. the. stationary rollers E Conversely, when the strip isbeing wound-upon a' smaller-roller from the :15

larger rollthe movableroller E of the ten-- sion: devicenioves inwardly to take up the slack strip Thus .a ,sufiicient tension is maintained on the stripto keepthe exhibited portion of the strip always taut.

The mechanismfor locking the winding mechanism and the exhibited part of the strip stationary is. made as follows 1 G designates a shaft which is made a art of or connected withtheshaft of the ro er E toturn there- '1 2 5 with and located in; the com artment formed. between .thepartition c an the .end. wall of .the casing. H designates .a disk mountedon the shaft G adjacent to the partitionC. Said providedw itha .per 0 ripheral notch adapted for engagement by the finger t of a spring-pressed latch I, Figs. 6 to 8. As herein shown, the latch I is hinged at one end and is pressed yieldingly toward the periphery of the disk H by means of a spiral contractile spring ll. In some instances the disk H may be itself fixed to the shaft G. As herein shown, it is adapted to turn with the shaft in one direction, while free to rotate thereon in the other direction. The means for so locking the disk to the shaft consists of a ratchet-wheel J, which is fixed to the shaft, and a pawl J, which is pivoted to the disk and is adapted to engage the peripheral teeth of said ratchet-wheel. Said pawl is pressed against the ratchet-teeth by means of a light leaf-spring j. if the car on which said de- ,vice is used be traveling on a single-track line and the trolley is reversed at each end of the line, the ratchet connection of the disk with the shaft may be omitted. llf present, the ratchet-wheel may be permanently locked to the disk by a pin it, extending through alined apertures in the disk and wheel, .as shown in Fig. 9. Tn such event when the car reverses its direction the strip will be in position to display or announce the streets in the return-trip of the car in proper order upon the reversal of the winding mechanism of the strip. The pawl-and-ratchet construction herein shown is employed mainly where the car travels on a loop-track. In the latter event the strip is made suiliciently long to announce the stations for the entire distance around the loop, and when the car reaches its starting-point or the point upon which it enters the loop it will be necessary to entirely rewind the strip before starting on the next trip in order that the street-names appear in proper order for successive announcement. This is effected by reversing the motor and allowing the same to turn in a direction opposite to that of the locking direction of the movement of the ratchet-wheel. During such reversal of the strip the pawl merely rides around on the teeth of the ratchetwheel, so that thedisk remains stationary and does not arrest the winding mechanism until the strip is completely unwound.

Electrically-actuated devices are employed for successively releasing the mechanism and for closing the circuit of the strip-winding motor F at such time as the announcement of a street or display of an advertisement is to occur in order to properly wind the strip to exhibit the names thereon. The subjectmatter to be displayed on. the strip is so disposed that a single rotation of the shaft retires one name and moves another name into line with the display-o ening of the case. Therefore the locking-disk in the construction shown is provided with but a single lock ing-notch and the shaft is rotated through one complete rotation .in each operation of the device. The mechanism for so releasing is pivotally mounted a trigger m the locking-disk and operating to close the motor-circuit is made as follows: K designates a magnet located within the casing adjacent to the latch I and on the side thereof opposite the locking-disk. The magnet is sup orted on a bracket 7c, fixed to the rear wal of the casing. The latch I constitutes the armature of said magnet, so that when the magnet is energized the latch is drawn toward the magnet with the finger i of the latch disengaged from the disk. The magnet K is energized when a-circuit is closed between the switch D and terminal (Z and this occurs when the trolley-pole is laterally displaced, as before stated. When the trolley again takes its central position, the switchbar is swung against the terminal 2 and closes at this point the motor circuit. Furthermore, when the latch I is drawn to the magnet K to release the locking-disk in the man ner shown it closes the motor-circuit at another point between a terminal i carried by the latch, and a terminal L, which is supported on a bracket Z, attached to the partition 0, said terminals being insulatedfrom their supports. After the latch has been released from the locking-disk H it is necessary that the same be held out of engagement with said disk until the switch D is actuated to close the motorcircuit,for the reason that not un- 5 til after said motor-circuit is closed will the shaft G begin to rotate. Furthermore, the magnet-circuit is opened before the motorcircuit is closed, so that if the latch were not restrained it would fall with its finger in locking engagement with the disk II. In order to hold the latch in its retracted position un-' til the motor-shaft and the locking-disk be gin to rotatepthe following mechanism is provided: M designates a bell-crank lever, which is pivoted at its angle by means of a pivot-pin m to the adjacent partition 0'. The short arm m of saidlever is widened, as shown in Figs. 3 and 4, and rides on the periphery of a cam N, that is affixed to the shaft G at the side of the disk H. The end of said bell-crank lever remote from the arm m is provided. with a rearwardly-directed part m on which Said trigger is pivoted between lugs m .rising from the part m in such manner that it may rise from its normal horizontal postition, but cannot be depressed below such position. The said trigger is held inits lowermost position by a leaf'spring m When the latch is in its locking position, the trigger is located above the free end ofthe latch, so that. when the latch rises it is free to pass the trigger. As soon as the latch passes the said trigger the trigger drops into its lowermost horizontal position and locks the latch in its elevated position out of engagement with the disk. When the motor-circuit is closed, the disk is rotated with its notch out of line with the finger of the latch, so that when said latch subse uently drops the finger drops upon the smoot part of the disk and in position to reengage the notch of the disk upon a complete rotation of the latter, and thereby arrest the windin mechanism. During such rotation of the shaft G and the locking-disk the cam N acts upon the lever M to throw the trigger out from beneath the latch and permit the latter to drop with its finger engaged with the periphery of the disk, as described. This action is repeated each time the switch D vibrates between the terminals d (1*.

Preferably means are provided which operate at the end of the run of a car for automatically reversing the current through the motor, and thereby reversing the motor and the direction of motion of the announcingstrip. In case the direction of the car is reversed at the end of each trip such reversal of the motor occurs just before the time of the announcement of the next street from the street at which the direction vof the car is reversed, and thereafter the display of the street-names occurs during the return-trip. of the car in an orderthe reverse of that occurring in the outgoing trip. In case the entire of the strip occurs at one time at a point on alooped track preparatory to beginning the next trip mechanism similar to the pawl-and-ratchet mechanism may be used to permit the backward rotation of the shaft G without rotating the locking-disk H, so that the unwinding of the strip continues without interruption until completed. A convenient means of so reversing the current through the motor is herein shown and is made as follows: The-shaft G is srcew-threadedfand receives a screw-threaded nut G, which is electrically connected with the feed side of' the motor-circuit. Said'nut G has iding engagement with a bar or rod 0, fixe in the casing parallel with the shaft G,in a manner 7 to prevent rotation of the nut, whereby the nut travels endwise of the shaft as the shaft rotates. The nut G is provided with'a laterally-opening noteh,.as indicated in dotted lines in Fig. 6, which receives the bar 0 to rovide the interlocking engagement reerred to. Mounted onsaid bar-O are two arms 0 0-, connected by an integral bar 0, the

- whole being made of a single metal bar that said arms.

' 'dinalmovement of the bar 0 relatively to the insulated terminals 0 0 one adapte gagement by the nut G at each limit of move-V is'fol'ded upwardly at its ends :to constitute g The arms are apertured for the passage of the guide rod or bar therethrough, and saidparts are adapted for slight longitushaft G. Said arms carry at their upper ends for enmentofthe nut. The said terminals 0 0 are m circuit two opposed magnets 'P P, between which is located a horizontallyswitch Q, that reverses the motonF.

One of the magnet-circuits is closed at the its outer end two separated and insulated contact-pieces g and g extending laterally from both sides thereof and connected by. wires with the armature-circuit of the motor. Said pair of contacts q 11 are adapted for alternate contact at the limits of the throw ofthe switch'with two opposed airs of ter- Said switch-lever carries a 'poleminals r 1" and r 1*, which are inc uded in the field-circuit of the motor. When the car has reached the end of its trip, the nut G is brought into engagement with one of its terminals 0 and the circuit of one of the magnets P is closed, thereby energizing said magnet and drawing the switch Q toward the same and closing the motor-circuit between two of the terminals 1* and r or 1' and 7' and reversing the flow of current through the motor, and thereby reversing the motor.

The switch Q is placed under the influence of a spring Q, that serves to quickly throwthe switch and holds the same at either limit of its throw. The switch bar Q- is provided with a pin that operates loosely in a short longitudina slot in thebar 0, and the length of said slot is such that the pin engages one end of said slot when the switch-arm is thrown to one limit of its movement and serves to shift the bar and arms 0 and the terminals 0 carried by said arms, sli htly in the direction of movement of the switch-arm. The purpose of so shifting the terminals 0? is to separate the same from the nut G and break the ormed its function to reverse the switch Q. In Fig. 12 is shown diagrammatically the outlay of the several circuits by which the several parts of the mechanism are operated- As shown in the drawings, 1 designates the feed-wire leading from the trolley to the carmotor S, and 2 the return-wire grounded to the return-raiL- Thesfeed-wire is connected through a suitable resistance 3 with the switch D. 4 designates arwire leading from the terminal (1 of the switch D to' the trippin -magnet K, and 5a wire-leading from sai ma et to the return-wire 2. 6. is a wire leading fibm the terminal ('1' ofthe switch D to the field-magnets of the'motor, and 7 a wire leading from the field and terminating in-twobranches 8 and 9, leading to the terminals 1" 1' of the opposing pairs of terminals associated with the reversln -switch. The other terminals 1' and r of eac .pair, between which vibrates the switch Q, are connected by branches 10 and 11 withthe return-wire 2.

The terminals g g of the reversing-switch Q are'incIuded in the armature-circuit of the motor, being connected with the brushes of the commutator by wires 12 and 13. One of said armature-circuit wires-to wit, the wire 12, as herein shown-is broken by the switch consisting of the parts i L, before referred to, one located on the locking-latch of the disk H, whereby when said parts are separated the motor-circuit is open. nate the wires included in the circuits of the reversing-switch-operating magnets P, a wire 14 leading from each of the contact-pieces o to one end of its associated magnet-coils and a wire 15 leading from the other end of each magnet-coil to the wire 5,and thereby connected with the return-wire 2. The nut G is connected by a wire 16 with the motorfeed wire 6. The electromagnet B is included in a circuit receiving current from the trolley-wire throu h a wire 17 and the current is completed hy the wire 18, leading to the return-wire 2. I,

A supplemental switch is provided by which thelock releasing and winding motorcircuit may be opened and closed in the same manner as through the switch D, but at a time when it is not convenient to use the latter switch. T designates such supplemental switch. It receives current from the trolleywire through a wire 19 and vibrates between terminals t t, which are connected by branch wires '20 and 21 with the feed-wires of the releasing magnet and motor circuits. Said switch is provided for the purpose of 'readjusting the winding mechamsm in case the announcing-strip should become deranged relatively to the streets to be announced. It will of course be understood that the switchl) may be manually operated in the manner of switch T and the latter omitted; but the switch T is preferably rovided, insamuch as it may be convenient y located for operation by the conductor. A switch U is placed in the feedwire of the motor-circuit at a point convenient for manual bperation for the purpose of cuttin the motor outof the circuit when it is desire to suspend the operation of the announcing device, as when the car is running over another track than for which the announcing device has been designed.

The operation of the ap aratus has been sufficiently indicated in t e foregoing description, but may be briefly recapitulated as follows: The electroma et B throws the switch D from side to si e as the trolley-pole 14 and 15 desig-' being held, retracted, as before stated, and the motor rotates through one cycle. motor-circuit remains closed so long as the finger of the latch rides on the peri hery of the disk H. Upon the completion 0 one rotation of themotor-shaft the finger of the latch drops into the notch of the disk and the motor-circuit is opened between the terminals 'i and L. Any other form of quick-opening switch may be employed that 1s automat ically operated to open at the completlon of the rotation of the motor. Upon the completion of each rotation, therefore, of the mo-:

tor-shaft and the shifting of the announcingstrip to retire one street-name or the like and display the next succeeding name the finger of the latch engages the notch of the lockingdisk and arrests the motor and winding mechanism and holds the same locked until again released. This operation of the device is repeated throughout the trip at each lateral dis lacement of the trolley -wire. At the en of the trip the nut G strikes one of the terminals 0 and closes the circuit of one of the magnets, by which the reversin -switch is thown over, whereby the strip-win ing motor is reversed and the announcing strip wound in an opposite direction, either during the next ensuing trip, as where the car returns on the same track, or in one continuous operation, as where the car is starting on its next trip on a loop-track. The lateral displacements of the trolley-wire in practice will e located some distance from the intersecting street to be announced through the medium of such displacement, so that the visual announcementwill be seen. for a practically long time to enable passengers to preare to leave the car. In case cars operate in both directions on a single line of track.

The

ley-poles or a single pivoted p'ole and when returning on the same track two switches D will be employed, one for each pole 'in the case of two poles orone at each side of the pivot in case of a pivoted or rotative pole.

The term' motor for actuating the announcing winding-strip mechanism is not employed in a restricted sense, but is designed to embrace any form of actuating device b which the winding mechanism is actuate to displace the announcing-strip in the manner stated for the purpose of successively displaying the street-names or other subject-matter carried by the strip.

1 claim as my invention- 1. In automatic announcing apparatus for electrically-propelled cars, the combination with a car provided with a laterally-swinging trolley-pole, an announcing device carried by the car, and means operated by the l ateral swing of the trolleypole for operating the announcing device.

2. In automatic announcing apparatus for electrically-propelled cars, the combination with a car provided with a laterally swinging trolley-pole, an electrically-actuated announcing device carried by the car, a switch for controlling the circuit that operates the announcing device, and an electromagnet carried by the trolley-pole for operating said switch.

3. In automatic announcing apparatus for electrically-propelled cars, the combination with a car provided with a laterally-swinging trolley-pole, an announcing device carried by the car, a trolley-wire provided with laterally oifset or dis laced portions along which the trolley-whee passes, and means operated by the lateral'swing of the'trolley-pole for operating the announcing device.

4. In automatic announcing apparatus for electrically-propelled cars, the combination with a car provided with a laterally-swinging trolley-pole, an electrically-actuated announ 0- ing device carried bythe car and a trolley- Wire provided with laterally ofiset or displaced portions along which the trolley-wheel passes, and a switch'operated by the lateral swing of'the trolley-pole for controlling the circuit that operates said announcing device.

"5. In automatic announcing apparatus for electrically-propelled cars, the combination with a car provided with a laterally-swinging trolley-pole, an electrically-actuated announcingdevic'e' carried by;the car, a trolley-wire provided with laterally offset or displaced portions along which the trolley-wheel passes,

a switch carriedby the car for controlling the circuit that operatesthe announcing device, and-an electromagnet carried by the swinging trolley-pole for operating said switch.

6. An announcing devicefor the purpose setforth, comprising an announcing-strip, a winding mechanism comprising rollers about whichsaid stri' is Wound and a locking mechanism for locking the winding mechanism,

win ing-rollers, a disk on the shaft provided with a peripheral notch, aspringressed latch provided with a finger adapter to engage said notch to arrest the winding mechamsm, means for retracting the latch from the disk-,means for temporarily holding the latch. away from the disk comprising a pivoted lever provided'with a pivoted trigger which permits the latch to movefpast the same, but acts as a stop ,to hold the latch away from the disk, and a cam on said shaft acting on said lever to release the trigger from the, said latch to lock with-"the disk.

7. An electrically-actuated announcing decor' n(prising a shaft which rotates with thepermit the latter to inter'-.

vice comprising an announcing' strip, wind ing mechanism embracing rollers about which the strip is wound, a motor for driving said winding mechanism, a locking mechanism for locking the winding mechanism comprising a disk which rotates with the windingrollers, a spring-pressed latch adapted for locking engagement with the disk, a magnet for retracting said latch from the disk, means for temporarily holding said latch away from the disk and constructed to subsequently release the same, circuits in which said motor and magnet are included, and a quick-acting switch in the motor-circuit comprising a terminal carried by said latch adapted to be brought into contact with an associated terminal of the circuit when the latchiS. retracted from the locking-disk and to bejseparated to open the circuit when the latch again engages the locking-disk, a cam, a lever actuated by said cam and provided with a pivoted trigger past which the latch is moved when retracted from the disk, andwhich supports the same until saiddisk begins to rotate, the cam afterward acting on said lever to release the latch to permit it to drop into contact with the disk.

8. An electrically-actuated announcing device for the purpose set forth, comprising an announcing-strip, winding mechanism em bracing rollers to which the ends of said strip are attached, a reversible electric motor for operating said winding mechanism, a locking device for arresting the winding mechanism and for releasing it preparatory to a further movement of the announcing-strip, and electrically-actuated means for reversing the motor to reverse the direction of movement of said strip, comprising opposing ma nets, a

switch located between and alternately acted upon by said magnets, normally open circuits in which said magnets are included, and a traveling terminal adapted for alternate engagement with the terminals of said normally open magnet-circuits. v

9. An announcing device for the purpose set forth comprising an announcin -strip, winding mechanism embracing rollers to which the ends of said strip are attached, a reversible electric motor for operating said winding mechanism, a locking mechanism for arresting the winding mechanism at the end'of'a predetermined movement of the strip and for releasing the winding mechanism preparatory to a subsequent winding movement thereof, and a reversing-switch for reversing said motor embracing a swinging switch, opposed magnets on the opposite sides thereof, terminals carried by said switch adapted for engagement with opposing pairs of terminals of the motor-armature circuits ,normally open circuits in which the actuating-magnets are in- IIS eluded, and a traveling terminal adapted for alternate engagement with the terminals of said normally opened magnet-circuits.

10. An announcing device for the purpose set forth, comprising an announcin -strip, winding mechanism. embracing rofiers to which the ends of the strip are attached, a reversible electric motor for actuating said winding mechanism, a locking device for looking the mechanism at the end of a predetermined movement of the strip, and forreleasing said locking mechanism preparatory to a subsequent movement of the strip, embracin a shaft which rotates with the winding ro lers, a stopdisk on said shaft, an electric'ally-releasable locking-latch engaging said disk and a reversing-switch mechanism comprising a swinging switch provided with terminals adapted for alternate engagement with opposing pairs of terminals of the armature and field-magnet circuits, two opposing magnets included in normally open circuits by which said switch is swung on its pivot, said shaft being screw-threaded and a screwthreaded nut on said shaft which travels endwise of the shaft as the shaft revolves, and constituting a terminal of the normally open magnet-circuits adapted to engage stationary terminals of said magnet-circuits to close the same.

11. An announcing device for the purpose set forth, comprising an announcing-strip, a winding mechanism embracing rollers to which the ends of the strip are attached and upon which it is wound, an electric motor for actuating said winding mechanism, a stop device for arresting the winding mechanism, electrically-actuated means for releasing said stop device, normally open circuits in'which said motor and releasing mechanism are included, and having adjacent terminals and a switch vibrating between said terminals for alternately opening and closing the motor and lock-releasing circuits.

12. An announcing device for the purpose set forth comprising an announcing-strip, a winding mechanism embracing rollers to which the ends of the strip are attached and upon which it is wound, an electric motor for actuating said winding mechanism, a stop device for arresting the winding mechanism, electrically-actuated means for releasing said stop device, normally open circuits in which said motor and releasing mechanism'are m-r eluded and having ad acent terminals, a switch vibrating between said terminals for opening and closing the releasing mechanism and motor-circuits, said motor-circuit being provided adjacent to the locking device with a normally open switch which is closed when the locking device is operated to release the winding mechanism, and is opened when the locking device is again brought into action to arrest the winding mechanism.

In testimony that I claim the foregoing as my invention I affix my signature, in pres ence of two witnesses, this 22d day of March, A. D. 1905. 1

ARTHUR n.-oLoUD.

' Witnesses:

O. F. HOLMES, F. A. MURPHY.

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