US1131855A - Indicating device for annunciators and the like. - Google Patents

Description

M. NORDOPF. INDIGATING DEVICE POR ANNUNGITORS AND TEE LIKE. APPLIOATION Hmm MAY 12, 1911.

1,131,855. Patented Mar. 16, 1915.

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INDIGATING DEVICE 011 ANNUNGIATORS AND THBLH'E'.'

APPLICATION FILED MAY 12, 1911.

Patented 16 1915.

HBTS-SHBET 2.

THE NORRIS PETERS CO..PHu|u-L1THO.. WASHINGTON. D.

M. NoRDoPF. INDIGATING DEVICE FOR ANNUNCIATORS AND THE LIKE.

APPLICATION FILED MAY 12, 1911.

Patented M ar. 16, 1915.

3 SHEETS-SHEET 3.

THE NORRIS PETERS Co., FHOTO-LITHO.. WASH/NGmN, D. C.

annunciator provided with the one metal side walls 2 nunciator MAX NORDOFF, OF CHICAGO, ILLINOIS, ASSIGNOR TO ELEVATOR SUPPLY & REPAIR COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION 0F ILLINOIS.

INDICATING DEVICE FOR ANN UNCIATORS AND THE LIKE.

T0 all whom itmag/ concern Be it known that I, Max NoRDoFF, a c1t1- zen of the United States, and a resident of Chicago, county of Cook, and State of Iliinois, have inventedV certain new and useful Improvements in Indicating Devices for Annunciators and the like, of which the following is a full, clear, and exact description.

The invention relates to annunciators and more particularly to improvements in the indicating devices therefor and seeks to provide a simple and effective form of indicating device, which can be economically manufactured and which can be readily shifted between its normal and set positions, but which is so arranged that it cannot be easily shifted by shocks, jars or otherwise accidentally either from its normal or set position.

The invention consists in the features of improvement hereinafter set forth, illustrated in its preferred forms in the accompanying drawings and more particularly pointed out the appended claims.

In the accompanying drawings, Figures l and 2 are side and front elevations of an form of the improved indicator and with the casing of the annunciator shown in section. Fig. 3 is a view in elevation of an annunciator provided with another form of the improved indicator with the annunciator casing shown in dotted lines. Fig. 4 is a vertical section on line 4 4 of Fig. 3. Fig. 5 is an enlarged detail view with the annunciator casing shown in section on line 5-5 of Fig. 2. Fig. 6 is a view similar to Fig. 5, with parts shown in section on the line 66 of Fig. 3. Fig. 7 is a detail section on the line 7 7 of Fie'. 5.

'Ihe annunciator casing comprises a base portion 1 preferably formed of wood, sheet and a front plate 3 having view openings therein through which the indicating devices or targets of the anare displayed. In the construction shown, the front plate 8 is formed of glass which is suitably secured at its edges within the inturned edges or flanges 4 of the side walls 2. This plate is provided with an opaque coat 5 on its rear face, the coat being omitted at suitable intervals to form view openings 6 through Vwhich the targets of the indicators are displayed.

The form of annunciator shown in the Specification of Letters Patent.

Application filed May 12, 1911.

- carries the target in Patented Mar. 16, 1915. serial No. 626,853.

drawings is specially intended for use in elevator cars and is provided with two indicators for each Hoor of the building in which the elevator is located, one for indicating up signals and the other for indicating down signals, the up indicating devices being in one vertical row or series and the down indicating devices in another vertical row.

In accordance with the present invention, the improved indicator comprises a suitable target or like indicating device which has a combined reciprocating and oscillating movement between its normal and set positions. An electro-magnet, a fixed cam and suitable restoring means coperate to effect the shift of the indicating device. In the form shown in Figs. l, 2, 5 and 7, both shifting and restoring magnets are provided for cach indicating device, while in the form shown in Figs. 3, 4 and 6, common restoring means is provided for all of the indicating devices of the annunciator. In both forms shown, each indicator comprises a solenoid magnet 7, a target or drop 8 preferably mounted on the core 9 of the solenoid magnet and a. fixed cam device which copcrates with the magnet in shifting the target. In the form shown in Figs. 4l, 2, 5 and 7, each indicator is provided with a solenoid magnet l0 for restoring it to normal position.

The solenoid magnets 7 and 10 are preferably cheaply formed of coils wound upon a central sleeve, each coil being arranged between ltwo disks 11 of insulating material mounted on the sleeve. In the form shown in Figs. l, 2, 5 and 7, the coils of the setting and restoring magnets 7 and l0 of each indicator are wound upon the opposite ends of a common sleeve l2 which is preferably formed of brass or'like material, and the core 9, which is common to both magnets, is rotatably and slidably mounted within the sleeve. Small metal supporting brackets 13 engage the opposite ends of the sleeve l2 and are provided with perforated base flanges or ears 14 for receiving the screws 15 by which the indicatorhis mounted upon the base l of the annunciator casing.

In accordance with the preferred arrangement, each indicator is mounted within the casing with the solenoid coils 7 and l0, the sleeve l2 and the sliding rod or core 9, which horizontal position, the up and down indicators being arranged in two vertical rows, asshown. -The part of the sleeve 12 of each indicator that is'exposed between the coils 7 and 10, is provided at its upper portion with an inclined or spiral cam slot 16 which extends substantially half way around the sleeve and a pin 17 fixed to and projecting later.- ally from the shifting rod or core 9, engages and extends through the cam slot 16. rlhe indicating device or target 8'is conveniently fixed to the outer end of thev projecting pin 17. The inclined slot and pin connection between, the shifting rod or core 9 and sleeve 12 serve to oscillate the latter and the target or indicator 8 connected thereto as these parts are shifted by the magnets 7 and 10. In the preferred arrangement shown with the magnets in horizontal position, the arrangement is such that the core and indicating target connected thereto is shifted through substantially a half revolution between its normal position horizontally be hind the axis of the solenoid magnets and its set position in the front oi' the magnets.

In Figs. 1 and 2 the targets or drops of thev two uppermost indicators are shown in set position, and those of the other indicators in normal position. InFigs. 5 and 7 the target is shown in normal position in full lines and in Fig. 5 it isshown in set position in dotted lines. In this preferred form, the pin 17 which carries the indicating levice or target 9 extends horizontally and rearwardly through one end of the inclined cam slot when the target is in normal position, and the pivot rod or core 9 is at the inner end of its movement. Then, when the shifting core 9 is energized, the rod or core is moved longitudinally and the cam slot 16 acts upon the pin 17 to oscillate the core and target and throw the latter from its normal rearward position upwardly and forwardly to its set position in front of the axis of oscillation. The pin 17 then extends-horizontally and forwardly through the opposite end of the inclined cam slot 16 and the shiftable supporting rod or core` 9 which carries the target is at the outer end of its movement. The face of the indicating target or drop is thus exposed through one of the view openings 6 in the'front plate of the annunciator'casing. Then, by energizing the restoring magnet 10 it will act in connection with the cam slot 16 to throw the target back to normal position. In this preferred form, the indicating target is thrown'from one side to the other over the center of oscillation, so that the force of gravity acts to complete the shiftr of the target as soon as it has passed its center of motion. Furthermore, the target is securely held by gravity either in its normal or its set position and,while it can be readily shifted by one or the other of the magnets,

itcannot be easily jarred or accidentally will be controlled in the usual way by push buttons located at the floors of the building in which the elevator is located, while the switches in the energizing circuits of the restoring magnets 10 can be manually controlled by the elevator conductor or they can be automatically operated by suitable means controlled by thevtravel ofthe car.

In the form shown in'Figs. 3, 4 and V6, each indicator is provided with a single setting magnet 7 from one end of which the sleeve 12 projects. As in the construction previously'described, the core 9 within the sleeveis provided with a laterally projecting pin 17 extending through an inclined or spiral cam'slot 16 in the projecting portion of the sleeve 11 and which pin earriesthe indicating device or target 8. In this form,

the cores 9 of the several indicators extend' inwardly beyond the sleeves 12 and are provided with laterally projecting pins 18. These pins are arranged to be engaged'V by a series of cross arms 19 on a vertically movable restoring rod 20. In the form shown, the ends of the restoring rod ,2O are enlarged and form the cores 21 of two solenoid magnets 22 which are similarinconstruction to the other solenoid magnets and are mounted in vertical position at the upper and lower ends of the annunciator casing. By energizing these magnets, the restoring rod 2O is shifted in vertical direction and the arms 19 thereon engage pins 18 on any ofthe indicating targets in set position and throw the same back to normal position. Preferably the end of the restoring rod 20 extends through a guide 23 at the lower end of the casing and is provided with a button 24.- so that it can be operated by hand.

In other respects the'form shown in Figs. 3, 4i and 6 is similar to that shown in Figs. 1,

2, 5 and 7. In both forms the indicator is Y ofv simple construction, can be economically manufactured, is readily shifted to and from set positions and at the same time is so arranged that, without the use of locks or latches` it is securely held in its normal and set positions.v

It is obvious that the improved indicator may be used for a number of purposes and that changes can be made in the details set forth without departureifrom the essentials of the invention as defined in the claims.

I claim as my invention 1. An electric indicator comprising a solenoid magnet, a longitudinally movable, oscillating core thereforyan indicating target fixed to said coreon one side'thereof,anda cam for oscillating said core, said target being gravity held in its normal and set positions and said core and magnet coperating to swing said target from normal position over a high point or dead center to set position.

2. An electric indicator comprising a solenoid magnet, a longitudinally movable, oscillating core therefor, an indicating target mounted on said core on one side thereof, a fixed cam member for oscillating said core and target, and restoring' means for said target, said magnet, said restoring means and said cam member coperating to shift said target over a high point or dead center between its normal and set positions.

3. An electric indicator comprising a solenoid magnet, a longitudinally shiftable, oscillating core for said magnet, a sleeve through which said core extends, said sleeve having an inclined cam slot, a pin fixed to said core and projecting laterally therefrom through said slot for effecting a partial rotation of said core, as the latter is shifted longitudinally, and a target `fixed to said pin on one side of said core.

4:. In an electric indicator, a solenoid magnet comprising a sleeve and a coil mounted thereon, said sleeve projecting from one end of said coil and having an inclined cam slot in its projecting end, a pin fixed to said core and extending through said slot and a target fixed to said pin.

5. An electric indicator comprising a suitable support, a longitudinally movable, oscillating rod mounted in said support, a target mounted on said rod and arranged on one side thereof, a magnet for shifting said rod longitudinally, and a cam device for oscillating said rodand target, said target being gravity held in its normal and set positions and said cam device and magnet coperating to swing said target from its normal to its set position over a high point or dead center.

6. An electric indicator comprising a suitable support, a longitudinally movable, oscillating rod mounted on said support, a target mounted on said rod, a magnet for Vshifting said rod longitudinally, a cam member for oscillating said rod and said target, and restoring means for said target, said magnet, said restoring means and said cam device coperating to shift said target between its normal and set positions and arranged to swing the same from a high point or dead center between such positions.

7. An electric indicator comprising a substantially horizontal solenoid magnet, a core therefor, a fixed cam member coperating with said core for effecting a half revolution thereof as the latter is shifted longitudinally, and a target mounted on one side of said core to oscillate and shift longitudinally therewith, said target being arranged to swing over said core and having its normal and set positions on opposite sides thereof.

8. A11 electric indicator comprisinga horizontally mounted solenoid coil, a sleeve extending through said coil and projecting from one end thereof, a core in said sleeve, said sleeve having an inclined cam slot in its projecting end and extending substantially through its upper half portion and said core having a pin extending through said cam slot, whereby a half revolution is imparted to said core as it is shifted longitudinally, a target fixed on said pin and arranged to oscillate from its normal position on one side of said core and sleeve to its set position on the opposite side thereof, and

Ameans for restoring said target and said core.

9. An electric .indicator comprising a suitable support, a longitudinally movable, pivot rod mounted in said support, an indicating target mounted on one side of said pivot rod, a magnet for shifting said rod and target in axial direction, a fixed cam member arranged to impart a half revolution to said target as it is shifted by said magnet, said target being arranged to swing over said rod and having its normal and set positions on opposite sides thereof.

10. An electric indicator comprising a horizontally mounted, rotatable and longitudinally movable rod, a target mounted on said rod and arranged to swing over the same between its normal and set positions on opposite sides of said rod, two magnets for reciprocating said rod in opposite directions and a fixed cam member for imparting a half revolution to said rod and target as the latter are shifted by said magnets.

l1. An electric indicator comprising a casing, a magnet, a rod arranged to be shifted longitudinally by said magnet, a pin projecting laterally from said rod, a target mounted on said pin on one side of said rod, a fixed cam member for oscillating said rod and target as said target is shifted longitudinally to thereby move said target from its normal to its set position, said casing having a view opening through which said target is exposed in set position, and means for restoring said target to normal position.

l2. An electric indicator comprising a casing having a view opening in its front, a magnet in said casing, a rod mounted in said casing and arranged to be shifted longitudinally by said magnet, a pin projecting laterally from said rod, a target fixed to the end of said pin and arranged at right angles thereto, and on one side of said rod, and a fixed cam member for oscillating said rod and target to shift the latter from its normal position away from said view opening to its set position behind said opening.

13. An electric indicator comprising a solenoid magnet, a longitudinally movable,

oscillatingycore for said magnet, anindieat ing target mounted onone side oi said Core and a cam member' for oscillating said core and target as said parts are shifted in axial Y direction b y said magnet, said cam member having stop portions at its ends for holding said target in its normal and in its set positions, and a high point intermediate its ends over which said target is shifted by said magnet, whereby said target is gravity-held in its normal and set positions.

14. An electric indioatoi1 comprising a a solenoid magnet and a longitudinally movable, I oscillating core for said magnet, a

sleeve `through which said core extends, saidv MAX NoRDoF-r.

Witnesses:

HARRY L. GLAPP, KATHARINE GERLACH.

Copies of this patent may be obtained for ve cents each, byaddressng the Commissioner of Patents,

Washington. D. C.v

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