US1896927A

US1896927A - Aerial

Info

Publication number: US1896927A
Application number: US487061A
Authority: US
Inventors: Edgar W Warren
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-10-07
Filing date: 1930-10-07
Publication date: 1933-02-07
Anticipated expiration: 1950-02-07

Description

Feb. 7, 1933. E. w.v WARREN 1,896,927

AERIAL l chanic.

Patented Feb. 7, 1933 Y UNITED STATES EDGAR W. WARREN, 0F GETTYSBUG, PENNSYLVANIA, ASIGNOR TO J. y l OF GETTYSBURG, PENNSYLVANIA f.

PATENT "OFFICE .l

,'Appneaaon med october 7, 1930. serial No.4s7,oe1.

This invention relates to aerials for radio receiving sets, and has for one of its objects to provide an aerialwhich shall be adapted to increase the'range yand the selectivity of any receiving set, and which shall be adapted toreduce static interference to the'minimum.

The invention has for a further object to provide an aerial of the character stated which shall bersimple and compact, which shall be adapted to be readily manufactured at a low .cost and Vwhich shall be adapted to be easily erected without the aid of a me- With the foregoing andother objects in viewthe nature of which will appear as the description proceeds, the invention consists in the construction, combination and arrangement of parts hereinafter "fully described andclaimed, and illustrated in the accompanying dra-wing, wherein Figure 1 is a sectional view taken on a plane extending vertically and 4centrally through the aerial;

Figure 2 is a sectional view taken on the horizontal plane indicated by the line 2-.2 of Figure 1;

Figure 3 is a sectional view taken on the vertical plane indicated by the line 3.-3 of Figure 1; y

-Figure 1' isa sectional view taken on the horizontal plane indicated by the line 4--4 of Figure 1, and

Figure 5 is a sectional view taken on the horizontal plane indicated by the line 5 5 of Figure 1.

The aerial comprises a tube 1 which may be made of copper or of any other suitable metal and may be corrugated longitudinally to add strength and rigidity thereto. The tube 1 is adaptedto be supported in upright position from a roof, p'ole or the like, and is closed at its upper endby a conical cap 2 and A Vat a point above its lower end by a plug 3. V. The cap 2, whichV is Inade'of Vmetal similar to that vfrom which the tube-1 is made, surrounds and rests upon the upper end of the tube, and the contacting portions of these partsare soldered together, as at 4, to establish a" water-proof connection between Vthe sa-me. The plug 3 is arranged within the tube 1,.and issecured in place by screws- 5 which pass through the tube and enter the plug.v Thev plug 3 has a snug 'Contact with; the inner surfaceof the tube 15, and any suitable sealing material 6 is arranged betweenV the contacting surfaces ofgthese parts so as Vto establish a water-.proof connection between the same. Theconnection between the heads of the screws 5V and the tube 1 is rendered water-proof by solder 7 which is applied to the heads andadjacent portions of the tube.

The cap 2 and plug 3 provide the tube 1 with a water-proof chamber Vwhich extends throughout the greater'length thereof.

The plug 3 comprises a lower member` 8, an upper member ,9; and. an intermediate member 10. The plug members 8 and 9 may be made of wood, bakelite or the like, and the plug member 10 may be made ofglass or the like. The plug members 8 and 9 have'a Ysnug fit with the inner surface of the tube 1, and the plug 'member 10 is smaller diametrically than the plug members 8 and 9, so as to provide the plug with an annular space 11 L. WILLIAMS, 4.

The lplug 3 isprovided at its upper side with metallic clips 12 forthe reception of a fixed crystal 13 of the conducting and rectifying type. A coil 14 of copper or wire isv arrangedv within the tube 1 between the cap 2 and plug 3, and has its upper end soldered, Y asat 15, to the apex of the ca'p2, and vhas auv A the clips 12. A binding post 17 extends through a side of the tube 1 at a point above vthe plug 3, and is adapted to have theleading-in wire `of the receiving set connected 9e A thereto. The binding post 17, which is insulated, as at 18, from the tube 1, is` connected to the other ofthev clips 12 by a lead v19 Y l provided with an insulatingfjacket. Y

.Y Supporting means forthe aerial coin-prisesV a standard 20 which is screw'threadedly'engaged at its upper end with a socket'member 21 secured by screws 22 to thelower sldeof its lower end soldered, as at. 16,4 to one .of Y

23. The 'standard 20 is screw threadedly engaged at its lower end with a socket member 24 which is pivotally connected by abolt 25 to an attaching bracket 26. The socket member 24 and attaching bracket 26 are provided with ears v27 and 2S forthe reception of the pivot bolt 25. :The attaching bracket 26 may be arranged at any angle to the standard 2O necessaryto permit it to besecured by screws 29 to a horizontal .orinclined support, as for instance, the roof 30 of a house or other building. After the attaching bracket 26 has been secured in place, the nut of the bolt 25 is tightened to ,hold the aerial and standard 2OV against rocking movement with respect to the attaching bracket.

Pins 31 extend inwardly'from the tube l adjacent the lowerv end thereof, and Varranged within the tube in' contact with the lower sides lof thepin's is a discl 32 of bakeliteV or other suitable insulating material. The disc 3l is secured in place by clips 33 fixed to the tube 'l and contacting with the lower side of the disc. The disc closes the lower end of the tube l, andis provided with an lopening for Athe reception of the standard 20.

A copper wire `is threaded through openings in the `upper .end of .the tube-1 to provide attaching loops 34 arranged at the outer side ofthe tube, and the opeiiingsare sealed by solder, as at S35, to prevent the passage of moisture therethrough. Guy wires 36, prefera'bly of copper, are looped about yand 4soldered to the loops 34, las Iat S37, and .are provided at their lower ends with `insulators S38. Thekguy wires 36 are electrically connected to the tube` l and coil 14 and` constitute a part of the aerial and they may be shortened or lengthened when it is .desired'to increase or decrease the effective lengthV .of the aerial.

yZlhefguy wiresQ :are secured'to the insulators 38 .and tothe roof 30. a f

' From the foregoing descriptiomrtaken in connection with the y:accompanying drawing,

it should be apparent that the .tube l, coil 14 and crystal rectifier 13 are `connected in series and that these parts are effectivelylield against .short :circuiting contact and fully Y protected from adverse weather conditions.

It vwill also beunderstood that the Vaerial vis `simple and highly efficient, and that the suprport therefor permits it to bereadily and rigidly attached to a roof .or the like. y While I have described the 'principle Aof the` invention, together the structure whichl now considerV the preferred embodiment thereof, it is to be understood that theA structure sho-wn "is merely illustrative and that suoli changes may be made, when desired,L as-fall withintlie scope ofthe invenf tion asclaiined.

I claim I i i te `Aend of fthe tube, an insulating plug within `conductor extending from the Y binding post yto the crystal rectifier` n 1 2. An aerial ,comprising in combination a metal tube, a metal closure sealed to theupper end of the tube, an insulating plug sealed within the tube below its'upper end, a crys# f tal rectifier carriedby the upper end of the plug, a metal coil within thetube between the closure and plug and fixed at its upper end to the closure and at its lower :end to the crystal rectifier, a'bindin'g post fixed to and insulated from `the tube, and 'a conductor extending from the binding'y post to the crystal rectifier. I 8. An aerial comprising in combination a metal tube, a metal closure for the upper end of the tube, an insulating plug/within thetube'below its upper aend, a crystal rec-v tifier carried by the upper side -of the plug, a metal coil within thetube between thezclosureand plug and fixed at its upperendto the cap :and at Vits lower-end. to the `crystal rectifier', arbinding post fixed to and insulated from the tube, and alconductor'extending from the binding post to the crystal rectifier and provided with an insulating jacket.

- 4. An aerial comprising in combination ra metal tube, a metal closure sealed to 'theup- 1 an insulating member arranged between said ,A r first insulating vmembers andsmaller/Hthan ma the saine to provide apassage between said first insulating membersfacrystal rectifier carried by the upper side of the uppermost 1 insulatingy member, a metal coil within the` tube between the closure and said 'uppermost Y insulating member andl fix-ed at its :upper end to the closure and at its'lower 'end'to the crystal rectifier, a binding post :fixed to and insulated from lthe tube, and a conductor extending from` the binding post'to'the crys tal rectifier. t i y 5. An aerial comprising combination VYa metal'tube having asealed compartment, 'a crystal rectifier arranged within said Lconipartinent and `insulated from the tube, a metal coil withinisaid l.compartmenty and :connected at one end of the tnbeand at the other endv to the crystal rectifier, a'binding post fixed to and insulated from the tube, .and a.

6, An Vaerial comprising in fcomb'inatonn Y.

metal tube having a sealed chamber, attaching loops passing through and sealedtothe tube, guy wires securedat certaiii of `their ,t

7. An aerial comprising in combination a metal tube, a metal closure for the upper end of the tube, an insulating plug withinthe tube below its upper end, a crystal rectier carried by the upper side of the plug, a metal coil within the tube between the cap and plug and fixed at its upper end to the cap and at its lower end to the crystal rectifier, a binding post fixed to and insulated from the tube, a conductor extending from the binding post to the crystal rectifier, a supporting member, and means secured to 'theplug and detachably engaged with the supporting member.

8. An aerial comprising in combination a metal tube, a metal closure for the upper end of the tube, an insulating plug within the tube below its upper end, a crystal rectiier carried by the upper side of the plug, a metal coil within the tube between the cap and plug and fixed atits upper end to the cap and at its lower end to the crystal rectifier, a binding post fixed to and insulated from the tube, a conductor extending from the binding post to the crystal rectifier, a supporting member, means secured to the plug and detachably engaged with the supporting member, and an attaching plate adjustably secured to the supporting member.

9. An aerial comprising a metal tube, a Y

metal closure for the upper end of the tube, an insulating plug within the tube below its upper end, a crystal rectifier carried by the upper side ofthe plug, a metal coil within the tube between the cap and plug and fixed at its upper end to the cap and at its lower4 end to the crystal rectifier, a binding post fixed to and insulated from the tube, a conductor extending from the binding post to vthe crystal rectifier, a supporting member, means secured to the plug and detachably engaged with the supporting member, and an insulating member extending across the lower end of the tube and secured to the tube and provided with an opening for the? passage of the supporting member.

In testimony whereof I hereunto affix my signature.

EDGAR W. WARREN.