US1584197A - Aerial attachment device for radiofrequency signal systems - Google Patents

Description

May 11 1926. 1,584,197

G. o. soun-:R

AERIAL ATTACHMENT DEVICE FOR RADIOFREQUENCY SIGNAL SYSTEMS Filed June 24, 1922 9 C Y s lgvENTQR I I BY ATTORNEYS Q1 mg# Parenteel Meyv 11, 1926.

UNITED STATE s APennini OFFICE.

GERGE OWEN SQUIER, F DRYDEN, MICHIGAN.

Application led June 24,

This invention relates to a device for use in connection with standard telephone equipment to permit the reception or transmission of radio frequency signals without the use of other aerial or guide for the radiofrequency signals.

The object of the invention is to provide.

a device of this character which is simple in construction, eiiicient in operation and economical of manufacture.-

A further object of the invention is to provide a device which will enable the utilization of telephone wires as either an aerial or as a guide in carrier current telephony or telegraphy in connection with a radio frequency receiving or transmitting apparatus wherein no permanent attachment is effected between the radio frequen'c'y signaling apparatus and the telephone system. 4

'A further object ofthe invention is to provide a device of this character wherein the normal operation `of the telephone is 'not interfered with by the receipt of radio frequencysignals.

A further object of. the invention is to provide a device of this character which is controlled by the relative position between the device and a standard transmitter and receiver unit.

Further objects of the invention will appear more fully hereinafter.

The invent-ion consists substantially in the construction, combination, location and relative arrangement of parts, all as will be more fully hereinafter set forth, as shown in the accompanying ldrawing and finally pointedl outin the appended claims.

Referring to the drawings:

Figure l is a view vin perspective illustrating the attachment of my invention with the telephone receiver and transmitter assembly 'positioned at right angles relative` thereto (at an abnormal position). i

Fi 2is a view in side elevation of the telep one and device 'of my invention positioned forV`V the reception or transmission of radio frequency.

Fig. 3 is a diagrammatic view partially 50 in section of the base of the telephone unit and the deviceof'my invention.

Fig. 4 is a fragmentary sectional view of a slightly modified arrangement embodying my invention.

Fig. 5- is a plan view of the same.

The same part is designated `by the same 1922. Serial No. 570,701.

reference character wherever it. occurs throughout the several'views. t

It is among the special purposes of my present invention to provide a device .of exceedingly simple construction which may be employed to permit the utilization of ordinary telephone Wiresv as an antenna for the receipt or transmission tof 'radiofrequency signals, or as 'the guide wire for wired wireless, or, as it is sometimes called, carrier current 4'telephony or telegraphy, 1n the manner as set forth generically in my patents issued to me as follows: No. 930,356, granted .15111.13 1911, No. 980,357 granted Jen. 3, 1911 e. 930,358, granted Jam-3, 1911, No.l 980,359, granted Jan. 3, 1911.

I accomplishthis in accordance with my invention without interference in any way with the telephone system or with the radio frequency signaling system, that is, neither System interferes with the normal operation of the other, and further, no perma nent connection' is made between the two 80 systems.

My invention may be applied in.manyforms and, therefore, I do not desire to be limited or restricted to*` any particular form or arrangement, but I have found a! most artistic arrangement to be that shown in the drawing and which is selected for the pur pose of illustrating the invention herein involved.

In the drawing, reference numeral 1 des-v ignates the usual telephone standard provided with a base 2 at one lend and the receiver or transmitter at the other end. f The usual telephone hook i supports the usual telephone receiver 5 which receiver 95 is connected to the base 2 by the wire cord 6. The usual wire cord (not shown)l eX'- tends from the-base to the usual telephone box containing the call bell etc. (.not shown) In the standard telephone equipment thus' 100 described, it is customary to cover the bottom ofthe base 2 with felt 7 or otherl material. And thetelephone is assembled and held in assembled position by means of three screws 8. To permit access to the screws and thus permit repairrmen to disassemble the telephone, holes are provided inthe felt or other covering 7 for the base 2 Where the saidscrews 8 are located.

. The' device of my invention consists of a standard 9 made 'of any suitable material., preferably .noneconducting material, suchv as normally and yieldingly projected upwardly by means of a spring 13 which bears against a collar 14 secured to the pin 12. rlhe spring also is seated against the bottom 15 of the base 9. When it is desired to utilize the ldevice in connection with a telephone system whereby the telephone wires are available as a radio antenna or' as a vguide for carrier current or wired wireless signals, the telephone stand is merely placed on the base 9. The pin 12 of the device of my invention comes in contact with thecenter screw 8 in the bottom of the base 2 of the telephone standard 1 and is held in electrical contact therewith by means ofthe spring 13. All the electrical connection necessary for the efficient operation of the radio signaling apparatus employed in connection with the system is thus eifected and obviously there is no permanent or semi-permanent connection between two systems by reason of the employment of the device of my invention, and furthermore, there is no interaction of interference'between the two systems, either of which being operably independent of the other, or both of them being operable simultaneously. i

The end of the Wire cord 11 is provided -with some form of attachment, for example,

a tip 20 to facilitate attachment of the device` to the radio frequency signaling apparatus. For the reception of signals it is attached to the usual terminal employed for connection with the antenna in a radio receiving set, the rest of the equipment being that commonly employed in radio frequency signaling. Obviously the device may be eniployed for transmission of radio frequency signals as well as reception. Also, l have y found that the length'of the cord 11 may be varied within wide limits without aecting the eicient operation of the apparatus employed.

It may'sometimes be desirable to vary the capacity of condenser 10a, and consequently in Figs. d and 5, I show a variable condenser of standard structure in place of the ixed condenser 10, Variation of the capacity of the condenser is e'ected through a handle 'which extends through the side or peripheral wall of the body 9 through a slot provided for that purpose. @t course' it is obvious that any other type of variable condenser 1. In a device of the character described,

avbody adapted to form a receptacle for the base of a telephone instrument, means carried by said body for effecting an electrical contact with a metallic portion of the base of said instrument, a wire connected with said means andv extending from said body,

and means included in said body for preventing low frequency' telephone currents from flowing through said wire connection.

2. ln a device of the character described, a body adapted to form a receptacle for the base of a telephone instrument, means carried by said body "for effecting an electrical contact with a metallic portion of the base of said instrument, a wire connected withb said means and extending from said body,-

and a condenser carried in said base and included in saidv wire connection.

3. In a device of the character described, a body ladapted to form areceptacle for the base of a telephone instrument, means car-r ried by said body for effecting an electrical contact with a base screw of said telephone instrument, a wire connection with said means and extending. from said body, and means includedI in said body for preventing low frequency telephone currents from flowing through said wire connection.

4. In a device of the character described, a body adapted to form a receptacle for the base of a telephone instrument,.means carried by said body for eecting any electrical contact with a base screw of said telephone instrument, a wire connection with said means and extending from said bodA and a 6. in a device of the character described,

a body adapted to form a receptacle for the base of a telephoneinstrument, a centrally disposed yieldable metallic pin carried by said body for effecting an electrical `contact with a metallic portion of the base of said instrument, a wire connection with said means and extending from said body, and a condenser carried in said base and included in said wire connection.

7. In a device of the character described, a body adapted to form a receptacle for the base of a telephone instrument, a centrally disposed yieldable metallic pin carried by said body for effecting lan electrical contact with the centrally positioned base screw of said instrument, a wire connection with said pin extending from said body, and means included in said body for preventing low frequency telephone currents from flowing through said wire connection.

8. In a device of the character described, a body adapted to form a receptacle for the base yof a telephone instrument, a centrally disposed yieldable metallic pin carried |by said body for electing antelectrical contact with the centrally positioned base screw of said instrument, a wire connection with said pin extending from saidbody, and a condenser carried in--said base and included in said wire connection.I

9. In 'a device of the character described, a body adapted to be associated with a telephone instrument without interference with the normal operation thereof, means carried by s aidbody for electing an electrical contact with a metallic portion of said instrument, a wire connection with said means and extending from said body, la condenser included in said wire connection, and means` for varying the capacity of said condenser.

. 10. In a device of the character described, a body adapted to form a receptacle for the base of a telephone instrument, means carried by said body for eliecting an electrical contact with a metallic portion of the base ofy said instrument, a wire connected with said means and extending .from said body, a condenser carried in saidlbase and included in said wire connection, and means for varying the capacity of'said condenser.

base of a telephone instrument, a centrally disposed yieldable metallic pin carried by said body for effecting an electrical contact with a metallic portion of the base `of said instrument., .a wire connection with said pin and extending from said body, a condenser carried in said base and included in said wire connection, and'means for varying the capacity of said condenser.

13. .In a device of the character described, a body adapted to form a receptacle for the base of a telephone instrument, a centrally disposed yieldable metallic pin carried by said body for effecting. an electrical contact with the centrally positioned base screw of said instrument, a wire connection with said pin extending from said body, and means included in said body for preventing low frequency telephone currents from flowing through said Wire connection.

14. In a device of the character described, a body adapted to form a receptacle for the base of a telephone instrument, a centrally disposed yieldable metallic pin carried by said body for eiecting an electrical contact with'the centrally positioned base screw of' 'said instrument, a wire connection with said pin extending from said body, a condenser carried in said base and included in said Wire connection, and ineansI for varying the capacity of said condenser.

In testimony whereofI have hereunto set nyohand on this 21st day of June A. D.,

GEORGE' OWEN SQUIER.

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