US1102421A - Telephone signal and recorder. - Google Patents

Description

F. J. MOGOWEN. TELEPHONE SIGNAL AND RECORDER. APPLICATION FILED mum, 191a.

11O2421 Patented July 7, 1914 2 SHEETSSHEET 1.

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F. J. 'MOGOWEN. TELEPHONE SIGNAL AND RECORDER.

APPIJOATION FILED JUNE 9, 1913.

Patented July 7, 1914.

2 SHEETS-SHEET 2.

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THE NORRIS PETERS CO, PHOTOJJTHQ. WASHINGTON, D. C.

UNTTED STATES PATENT OFFICE.

FRANCIS J. MGGOWEN, OF LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE-THIRD TO IDA R. FORBES.

TELEPHONE SIGNAL AND RECORDER.

To all whom it may concern Be it known that I, FRANCIS J. MoGoWEN, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Telephone Signal and Recorder, of which the following is a specification.

This invention is for notifying a person calling on a telephone line when the party called is out or does not answer the call, and enabling a message from the party calling to be recorded at the called station.

The main object of the present invent on is to provide means for this purpose which can be applied to the usual circuits without interference with the usual apparatus and connections.

Other objects of the invention will appear hereinafter.

The accompanying drawings illustrate an embodiment of the invention, and referring thereto: Figure 1 is a front elevation of a telephone subscribers apparatus and recording instrument showing in section the controlling means for signaling and recording devices. Fig. 2 is a diagram showing the connections of the signaling and recording devices with the controlling means therefor.

1 designates the subscribers telephone instrument of any usual type comprising, for example, call bell 2, receiver 3 and transmitter 3. As these parts are connected 1n the usual manner, and their operation is not interferred with or changed in any way by the present invention, their construction and connections are not herein shown in detail. The subscribers line 4, 5 is connected in the usual manner to the said subscribers instrument and is also connected to a controlling electromagnet or relay 6, switch 7 being included in the connection with said relay for open circulating the relay when desired. Side 4 of the line may be connected by wire 8 to one side of relay 6, the other side of which is connected by wire 9 to fixed contact 7 of switch 7, the movable contact of said switch being connected by wire 10 to the other side 5 of the line. The switch 7 is preferably mounted in convenient position adjacent to the subscribers instrument and the relay 6 may be inclosed in any suitable casing 12 adjacent to said instrument. The armature 14 of said relay carries a series of contacts 15, 16, 17 and 18 for controlling the Specification of Letters Patent.

Application filed. June 9, 1913.

Patented July '7, 1914.

Serial No. 772,535.

operation of the signaling and recording devices when said relay 6 is energized, said contacts cooperating with fixed contacts 15, 16, 17 and 18.

The signaling device forming part of my present invention comprises a transmitter 20, which is located adjacent to the call bell 2 so as to receive thesound vibrations emanating from the bell. The telephone transmitter 20 is connected by wire 27 to one side of a battery 21 and by wire 28 to the primary winding of an induction coil 29, having a connection by wire 30 to one of the contacts 15 for armature contact 15, the other contact 15 being connected by wire 31 to battery 21 aforesaid.. The secondary winding 32 of said induction coil is connected by wires 34, 35 and 36 to the respective sides of the telephone circuit 4, 5, contacts 16, 16, controlled by the relay 6 being included between wires 35 and 36. Armature contact 17 cooperates with fixed contacts 17 to control a branch circuit from the telephone line 4, 5 to a receiver 37 adapted to operate in conjunction with the dictaphone hereinafter described, the circuit for said receiver being established through wires 38, contacts 17 17 wire 39 to one side of the said receiver and from the other side of said receiver by wire 40 to wire 10 aforesaid.

The means for recording the message from the calling party comprises a dictaphone of any usual or suitable construction driven by a motor 41 and comprising a cylinder carrier 42, a recording and reproducing device 43, and means for feeding said recording and reproducing device over the surface of the cylinder, said recording and reproducing device has a mouth piece provided with means indicated at 45 for temporarily holding the receiver 37 thereon so that the sound vibrations emanating from the diaphragm of the receiver 37 will be transmitted to the diaphragm of the recording and reproducing device 43. Motor 41 for operating this recording and reproducing device is connected by wires 48 and 49 to opposite sides of an energizing circuit 50, 51, one of said wires including the contact 18 for armature contact 18, so as to close the energizing circuit for the motor when the relay 6 is energized.

The operation is as follows: When the subscriber is present he will leave the switch 7 in open position so that impulses coming over the line will be received in the usual manner both in signaling and talking. WVhen, however, the party desires to'leave the instrument in condition to receive a call while he is gone, he will close the switch 7, putting the relay 6 in connection with the line through a branch circuit comprising wire 8, relay 6, wire 9, switch 7 and wire 10. As soon as the line connection is made from central to the lines 4, 5 of the called station, the ringing impulses coming over the line operate the relay 6 which is made sufficiently sensitive to attract its armature even with the comparatively weak talking current and is therefor readily energized by the ringing current. When the armature of the relay 6 is attracted in this manner it will close the circuit of the transmitter 20, and a ringing current then causes the bell 2 to ring and causes the transmitter 21 to send over the line 4, 5 through the induction coils 29 and 32 impulses produced by the sonorous vibrations due to the action of the bell, thereby notifying central that the party called is not in central also being notified by this signal that the party called has a message recorder, may put the calling subscriber in communication with the called line in the usual manner. The calling party will then speak his message into his transmitter and this message will be reproduced by the receiver 37 and recorded by the dictaphone or automatic recording device 43, it being understood that the dictaphone motor is set in operation by the operation of the controlling relay 6 when the calling party hangs up and the current ceases to come over the line, the relay 6 is deenergized, opening the circuit of the distaphone motor which then ceases to operate. When the called party returns he will start the automatic recording device in operation, having first set the same to reproducing position and set it back to the same position it occupied on the record when he left the telephone, so that the message spoken over the wire will be reproduced by the said instrument.

\Vhat I claim is:

1. In combination with a telephone circuit, a subscribers instrument connected thereto, including a call bell, a relay having operative connection with said telephone cirrelay and in cooperative relation with said transmitter circuit to transmit to the telephone line electrical impulses corresponding to the sound vibrations produced by said I call bell.

2. In combination with a telephone circuit and subscribers instrument connected thereto, including a call bell, a relay connected thereto, and adapted to be energized by the current in said circut, a sound recording and reproducing instrument, a motor therefor, a receiver, a supply circuit connection controlled by said relay for energizing said motor, and a connection controlled by said relay for putting said receiver in communication with said telephone line, a transmitter adapted to receive sound vibrations from said call bell, an energizing circuit connection for said transmitter controlled by said relay, and means for transmitting to the telephone line electrical impulses produced by said transmitter.

3. In combination with a telephone circuit, a subscribers instrument connected thereto including a call bell, a relay, a branch from said telephone circuit including said relay and a switch, a sound recording and reproducing instrument, a motor therefor, a supply connection controlled by said relay for energizing said motor, a receiver and a connection from said telephone line controlled by said relay for putting said receiver in communication with said telephone line, a transmitter adapted to receive sound vibrations from said call bell, and a connection controlled by said relay from said transmitter to said telephone line, for transmitting to the telephone line electrical impulses produced by said transmitter.

In testimony whereof, I have hereunto set my hand at Los Angeles, California this 8rd day of June 1913.

FRANCIS J. MCGOWEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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