US1865389A - Remote control apparatus - Google Patents

Description

June 28, 1932. D. W. REDDY REMOTE CONTROL APPARATUS 2 Sheets-Sheet 1 Filed Sept. 19, 1929 mmzuumm INVENTOR David ZMRed'dy ATTORNEYS REMOTE CONTROL APPARATUS Filed Sept. 19, 1929 2 Sheets-Sheet 2 ENU lNVENTOR WITNESSES 25 \35 27 David ZU-Reddy ATTORNEYS Patented June 28, 1932 UNITED STATES PATENT OFFICE DAVID WILLIAM BEDDY, 01' NEW YORK, N. Y., ASSIGNOR OF ONE-FOURTH 1'0 MARY A. LEWIS, ONE-FOURTH T VIOLA CORNELL, AND ONE-FOURTH TO MAX SILVER- m, ALL OF NEW YORK, N. Y.

morn conrnon ArrAnArUs This invention relates to apparatus.

It is among the objects of the present invention to provide a novel and improved remote control device adapted to control from a distance point either electrical or mechanical apparatus.

A further object of the present invention is to provide an electrically operated remote remote control m control device-for controlling theirotation of a shaft.

A further object of the present invention is to provide a novel and improved remote control device especially adapted for controlling '15 from a distant point the rotation of a radio tunin device. a

A further object of the present invention is to provide an improved remote control apparatus adapted to rotate a remote device by -zo a series of step-by-step movements thereof.

A further object of the present invention is to provide a remote'control device including a switch adapted to transmit a predetermined number of individual electrical impulses. It is also among the objects of the invention to provide in connection with the impulse transmitting switch, an apparatus and actuator.

adapted to impart step-by-step rotary movement in response to the electrical impulses.

clude the provision of a novel device in which the combination and interrelation ofparts provides a simple and efiicient apparatus well designed to meet the demands of economic manufacture.

Reference is to .be had to the following specification taken in conjunction with the accompanying drawings, in which Figure 1's a diagrammatic illustration of one form of the present invention;

Fig. 2 is a detail side elevation of aradio tuning plate and operating meanstherefor; Fig. 3 is a side elevation of that portion of the device shown in Fig. 2; a

Fig, 4 is a top plan View partly broken away. showing the impulse transmitting switch; Fig. 5 is a sectional view taken on lines 5-5 ofFig.4; Fig. 6 is a detail view showing the return Other objects of the present invention in- ".vided mounted upon the base 11 with which non-impulse transmitting movement of the switch plate; I

Fig. 7 illustrates the'plate during impulse transmitting movement. a

Referring more particularly to Fig. 1 of the drawings, the invention has been illustrated in combination with a radio receiving apparatus, which is generally indicated by the dotted lines 10. It will be understood that the invention is not confined to this specific apparatus but the device may be used for the control of various types of mechanical or electrical devices.

The present invention includes a base 11 upon which suitably associated controllers and switches may be provided in addition to the impulse transmitting switches, as will be hereinafter described. Such switches are indicated by the volume control switch 12 and the speaker switch 13 which controls the current through the output conductors 14 of the radio receiver which are arranged through the switch 13 to the loud speaker or equivalent device 15.

For supplying energy to the receiving apparatus, a source of potential not shown, is utilized and the required energy is transmitted therefrom through the conductors 16 and 17 to the radio apparatus by connection withthe binding post 18 thereof. Mounted upon the base 11 of the remotely positioned control device, an impulse transmitting switch is provided which includes a rotatable disk 20, the under side of which is provided with projecting arms 21 which are adapted to ride over the insulating base 11. The arms 21 are electrically connected to the conductor 17 by'a conductor 22, the circuit including theswitch 23 and pilotlight 24, the central shaft of the disk 20 being connected with the pilot light 24 by a conductor 25 and the arms being electrically connected with the shaft jar rotation therewith. For cooperation with the arms 21, a conducting plate 26 is prothe arms 21 may contact in one direction of rotation thereof, to transmit a predetermined number ofelectrical impulses through the conductors 27 and 28 to one sideof an actuating magnet 30, the other side of which is 100 connected with the conductor 16 by a suitable conductor 31.

For preventin transmission of impulses by the passage 0 the arms 21 over the plate 26 upon both directions of rotation of the plate, a guard member 32 is provided carried upon the base 11, one end of which contacts with the base so that when an arm approaches the plate from that direction, the arm will ride over the guard and no contact of the arm with the plate will be established, this movement of the arms being indicated in Fig. 6. In the opposite direction or direction indicated by the arrow in Fig. 1, the arms 21 pass under the guard and in so passing establish an electrical connection between the arms and the plate to provide an impulsive energization of the circuit to the magnet 30.

The disk 20 of the impulse transmitting switch is normally retained in predetermined lnactive position by a spring 33 which resiliently retains a stop projection 34 on the disk against a stop 35 carried by the base 11. For operating the disk, a plurality of apertures 36 on its marginal edge are provided, whereby from the rest position shown in Fig. 1, the disk may be readily rotated by the insertion of a pencil stylus or the like 1n one of the apertures and rotation of the disk continued until the stylus strikes a stylus stop 37. The apertures are provided with suitable numerals, the arrangement being such that with a stylus positioned in the aperture 3 of Fig. 1 and the stylus moved to the stop 37, upon release and return movement of the disk three of the arms 21 will move across the plate 26 and three impulses will be transmitted from the conductor 17 through the magnet 30 to the conductor '16.

0 For rotating the shaft in a remotely positioned apparatus, such as the condenser shaft 40 of the radio receiving apparatus, the shaft 1s provided with a pair of controlling disks 41 and 42. The outer disk 41 is provided with a plurality of counterclockwise pitched teeth 43, while the associated inner disk 42 is provided with clockwise pitched teeth 44. The arrangement is such that upon reception of impulses by the magnet 30, which is mounted upon the remotely positioned apparatus, the periodic energization thereof will actuate the magnet keeper 45 against the tension of its spring 46 to longitudinallyreciprocate a shaft 47, the outer end of which is provided with a hook 48. Upon each inward movement of the shaft, it engages successive teeth of the disk 41 to move the shaft in step-by-step rotational movement in the dlrection of the arrow in Fig. 2. When the shaft 47 is in its outer position as normally maintained by the spring 46, the hook end thereof rides over a cam block 49, whereby in its raised position the book 48 is free from engagement with the teeth 43.

For moving the shaft 40 in the opposite direction, a switch 50 is provided on the base 11 and directly connects the conductor 17 through the. switch 23, pilot light 24 and a conductor 51 with a magnet 52 by means of a conductor 53. The magnet 52 is provided with a keeper 55, spring 56, arm 57, hook 58 and cam 59, substantially the same as that of the magnet assembly-3O for moving the shaft in a clockwise direction, the difference being that the plane of the arm 57 and hook 58 is such as to engage the oppositely pitched teeth 44 of the disk 42. The return circuit for the magnet 52 is made through a conductor 60 which is electrically associated with the keeper 55 which when in outer position contacts with a conductor 61 which conductor terminates in a brush 62 mounted for movement over a circuit control 63 carried with the disk 42 and shaft 40.

The circuit control 63 includes a conducting, segment 64, the arrangement being such that when the shaft is in zero position as indicated in Fig. 1, energization of the magnet 52 is impossible, but after it is moved in the direction of the arrow A in Fig.1, the brush 62 will ride upon the conductor segment 64 and will establish electrical communication therethrough with a brush 65 and conductor 66, which conductor is associated with the conductor 31, thus completing the circuit to the conductor 16. By the provision of the switch 50 and its associated circuit, and the magnet 52, it will be seen that after the shaft has been rotated,-closing the switch 50, will energize the magnet 52, the energization 0 which will be broken for the time that the keeper 55 is moved down, whereby rapid successive movements of the arm 57 will result and the hook 58 will engage the teeth 44 to move the shaft 40, to its original position.

From the foregoing it will readily be seen that a novel, efiicient and inexpensive remote control device is provided. It is to be understood that the invention is not to be confined to the specific impulse transmitting switch herein showninor to other structural features herein illustrated. It 'will be understood that numerous changes, modifications and the full use of equivalents may be resorted to without departing from the spirit or scope of the present invention as outlined in the present claims.

What is claimed is:

1. In a remote control; the combination of a rotatable shaft, a pair of toothed disks thereon, a reciprocable hooked arm associated with each of said disks, electro-magnets associated with each arm, a manually operable impulse transmitting switch in electrical circuit with one side of one of said electro-magnets and com rising a rotatable element having a plura 'ty of conducting arms, a fixed conductin element over which said arms ass and in cu'cuit with the other side of sai electro-magnet, said switch further including means for permitting contact of said arms with said fixed contact element in one direction of rotation thereof and preventing contact of said arms with said element in the opposite direction of rotation thereof whereby to impart electrical impulses to said elcctro-magnet in one direction of rotation only, a circuit control carried by said shaft and in circuit with said other electro-magnet and a manually operable switch in circuit with said electro-magnet whereby to energizethe same to operate its associated arm to rotate said shaft in a reverse direction.

2. In a remote control, the combination of a shaft tobe rotated, means for rotating said shaft including a pair of electro-magnets, a manually operable transmitting switch associated with one of said electro-magnets for imparting a predetermined number of electrical impulses thereto, said switch comprising a rotatable element having a plurality of conducting arms, a fixed conducting element over which said arms may successively pass,

said switch further including means for per mitting contact of said arms with said conducting element in one direction of rotation thereof and preventing contact of said arms with said element in the opposite direction of rotation thereof, springs means for returning said rotatable element to normal position, and a switch member associated with said other electro-magnet for imparting electrical impulses thereto for reversely rotating said shaft.

3. 'In a remote control, the combination of a shaft to be rotated, an electro-magnet for imparting a step by step rotation thereof in one direction, a manually operable impulse 4o transmitting switch associated with said elec tro-magnet, said switch comprising a rotatable element having a plurality of conducting arms, a fixed conducting element over which said arms may successively pass, a

guard member positioned over said fixed contact and constructed to permit engagementof said arms and said contact in one direction ofrotation of said rotatable element, spring means for returning said rotatable element to normal position, a circuit control member carried by said shaft, an electromagnet in circuit with said control member for imparting a step by step rotation of said shaft in the opposite direction, and a manually operable switch for energizing said electro-magnet. I

DAVID WILLIAM REDDY.

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