US1933153A

US1933153A - Radiosignaling

Info

Publication number: US1933153A
Application number: US533207A
Authority: US
Inventors: Ace W Slaght
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-04-27
Filing date: 1931-04-27
Publication date: 1933-10-31
Anticipated expiration: 1950-10-31

Description

Oct. 31, 1933.

A. W. SLAGHT RADIOS IGNALING Filed April 27, 1931 nnmmnnn H 9 mm WM %LM A r TOR/YE) Patented Oct. 31, 1933 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates particularly to radio sensitive receiving systems.

It is one object of the invention to provide a simple and compact means that will eliminate the necessity of providing the usual aerial or loop antennae that ordinarily forms a part or a radio receiving set.

It is also an object of the invention to provide a means of the character indicated that will secure increased volume in the receiving set, and that will also greatly increase the selectivity of the set and greatly increase its efiiciency in tuning in distant sending stations, as well as function as a filter to cut down interference, are light noises, A. C. hum etc.

In the drawing:

Figure 1 is a schematic diagram showing the preferred embodiment of my invention as applied to any form of tube receiving set.

Figure 2 is an elevation of a cell or unit embodying my invention, partly in section and part broken away.

Referring now more particularly to the embodiment of the invention herein shown and described, I show at 1 a receiving set of any desired type or form, several tubes being indicated at 2 to show the general character of the set. The usual aerial and ground terminals of the set are shown at 3 and 4 respectively.

The radiant energy collector unit forming the subject matter of the present invention comprises a wire coil 5 of a suitable number of turns, one end of the coil being connected to a connector 6 connected to an outside ground as '7, and the other end being connected to a connector 8 which is passed axially through the coil as at 9 and connected to the ground terminal of the set 4. Another coil 10 is wound upon the coil 5 and has substantially the same number of turns as coil 40 5, one end of the coil being connected to a connector as 11 connected to the aerial terminal of the set 3 and the other end terminating at a point as 12 adjacent the end of coil 5 where it is connected to connector 8.

In its commercial form this unit is mounted in a case 13 and imbedded in a suitable insulating material such as parafiine wax indicated at 14.

I have found that by means of a hook-up of this kind the necessity of providing either an 5 outside or an inside aerial is entirely eliminated, and that notonly is the selectivity of the set greatly increased but its efiiciency is greatly augmented along the line of noise reduction, etc., the results obtained being superior to those obtained by the device disclosed in my prior patent bearing No. 1,782,831, and dated November 25, 1930.

One feature of this device is that there is no metallic connection between the two

coils

5 and 10 so that no closed circuit is provided for the passage of an electric current such as produced by lightning.

It is to be understood, of course, that while I have herein shown and described but one specific embodiment of the invention, changes 30 in form, construction, and method of assembling and mode of operation may be made within the scope of the appended claim.

I claim:

In a radio receiver, a radiant energy collector 35 unit comprising a pair of fixed coupled coils, one of said coils having one of its ends directly connected to an outside ground and its opposite end connected to a connector extending axially through the coil and connected to the ground terminal of the receiver, the other coil having one unconnected end and one end connected to a connector connected to the aerial terminal of the receiver.

ACE W. SLAGHT.