US2161707A - Antenna - Google Patents

Antenna Download PDF

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Publication number
US2161707A
US2161707A US173790A US17379037A US2161707A US 2161707 A US2161707 A US 2161707A US 173790 A US173790 A US 173790A US 17379037 A US17379037 A US 17379037A US 2161707 A US2161707 A US 2161707A
Authority
US
United States
Prior art keywords
antenna
spring
insulator
support
bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US173790A
Inventor
Jarrett L Hathaway
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US127628A external-priority patent/US2180107A/en
Application filed by RCA Corp filed Critical RCA Corp
Priority to US173790A priority Critical patent/US2161707A/en
Priority claimed from US173789A external-priority patent/US2217313A/en
Application granted granted Critical
Publication of US2161707A publication Critical patent/US2161707A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/085—Flexible aerials; Whip aerials with a resilient base
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/45—Flexibly connected rigid members
    • Y10T403/459—Helical spring type coupling

Definitions

  • My present invention is a division of my copending application Serial No. 127,628, filed February 25, 1937.
  • the object of my present invention is to pro- 6 vide an improved antenna system for use with ultra short wave apparatus.
  • the antenna of my present invention is particularly adapted to safeguard the frequency stability and constancy of an ultra short wave transmitter.
  • the antenna structure is electrically coupled to the high frequency tubes of the apparatus so that undue loading, for example, by contact therewith will not cause cessation of oscillation or undesirable changes in frequency.
  • a further feature of my antenna resides in the provision of a novel flexible antenna support saving the antenna and apparatus associated therewith from harm in the event of contact with external objects.
  • Figure 1 shows my improved antenna and its application to a short wave portable transmitter
  • Figure 2 is an exploded view of my antenna.
  • Figure 1 shows my improved antenna connected to and energized by a high frequency transmitter T.
  • the transmitting structure is supported within a metallic case 92 which is preferably of such size and shape that it may readily be carried about. Passing through an aperture in the top of case 92 is a feed through insulator 96 and my improved antenna I is supported on the insulator through the medium of a supporting spring 98.
  • the spring resiliently supports the antenna so that if the antenna is inadvertently struck or brushed against non-yielding objects it will deflect harmlessly and not be bent or broken.
  • Spring 9-8 also serves to conduct radio frequency energy from the output of the transmitter T to the antenna I00.
  • the power oscillator tube 90 forming a part of transmitter T feeds its output through a relatively small condenser 94 say, for example, of the order of ten micro-microfarads in value to the antenna I00 which may be approximately one- 45 sixteenth of a wave length in length.
  • condenser 04 will serve to prevent undue load reaction or cessation of oscillations and, of
  • FIG. 2 An exploded view of the mechanical construction of the antenna is given in Figure 2.
  • the antenna proper in the form of a stiff wire or rod I00 is fitted within a chuck consisting of a split threaded portion or bolt section I00 whose split ends are fixed against the antenna I00 by the action of the knurled nut I02.
  • the bolt section I00 is mounted upon the coil spring 98, in turn supported by the insulating bushing 96.
  • Bushing 96 is provided with a lower section I04 threaded to which is bolt I06 extending through bushing 96 and threadedly engaging lock nuts I06, I08 and the internally threaded member 1 I 0 upon which the spring 90 is supported.
  • a short wave antenna system comprising a support, an insulator carried by said support, an open helical spring having one end mounted on said insulator and a short straight light weight antenna rod mounted on the other end of said spring.
  • a short wave antenna system comprising a support, an insulator carried by said support, an open helical spring having one end mounted on said insulator and a short straight light weight antenna rod removably mounted on the other end of said spring.
  • a short wave antenna system comprising a support, an insulator carried by said support, an open helical spring having one end mounted on said insulator, a split chuck mounted on the other end of said spring and a short light weight antenna rod removably mounted in said chuck.
  • a short wave antenna system comprising a support, a feed-through insulator carried by said support, a clamping bolt passing through said insulator and means for energizing said antenna connected to one end of said bolt, a helical spring having spaced turns mounted on the end of said bolt, a split chuck mounted on the other end of said spring remote from said bolt and a light weight antenna rod removably mounted in said chuck.

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  • Details Of Aerials (AREA)

Description

June 6, 1939. J. L. HATHAWAY ANTENNA Original Filed Feb. 25, 1937 11/ [III IIIIIII II INVENTOR J. L. HATHAWAY BY g ATTORNEY Patented June 6, 1939 UNITED STATES PATENT OFFICE ANTENNA tion of Delaware Original application February 25, 1937, Serial No.
127,628. Divided and this application November 10, 1937, Serial No. 173,790
4 Claims.
My present invention is a division of my copending application Serial No. 127,628, filed February 25, 1937.
The object of my present invention is to pro- 6 vide an improved antenna system for use with ultra short wave apparatus.
The antenna of my present invention is particularly adapted to safeguard the frequency stability and constancy of an ultra short wave transmitter. In carrying my invention into effect, the antenna structure is electrically coupled to the high frequency tubes of the apparatus so that undue loading, for example, by contact therewith will not cause cessation of oscillation or undesirable changes in frequency. A further feature of my antenna resides in the provision of a novel flexible antenna support saving the antenna and apparatus associated therewith from harm in the event of contact with external objects.
In the accompanying drawing, Figure 1 shows my improved antenna and its application to a short wave portable transmitter; and Figure 2 is an exploded view of my antenna.
Figure 1 shows my improved antenna connected to and energized by a high frequency transmitter T. The transmitting structure is supported within a metallic case 92 which is preferably of such size and shape that it may readily be carried about. Passing through an aperture in the top of case 92 is a feed through insulator 96 and my improved antenna I is supported on the insulator through the medium of a supporting spring 98. The spring resiliently supports the antenna so that if the antenna is inadvertently struck or brushed against non-yielding objects it will deflect harmlessly and not be bent or broken. Spring 9-8 also serves to conduct radio frequency energy from the output of the transmitter T to the antenna I00.
40 The power oscillator tube 90 forming a part of transmitter T feeds its output through a relatively small condenser 94 say, for example, of the order of ten micro-microfarads in value to the antenna I00 which may be approximately one- 45 sixteenth of a wave length in length.
Should antenna I00 be touched or otherwise loaded, condenser 04 will serve to prevent undue load reaction or cessation of oscillations and, of
course, the crystal control which may be used with oscillator tube will serve to prevent any substantial change in frequency.
An exploded view of the mechanical construction of the antenna is given in Figure 2. The antenna proper in the form of a stiff wire or rod I00 is fitted within a chuck consisting of a split threaded portion or bolt section I00 whose split ends are fixed against the antenna I00 by the action of the knurled nut I02. The bolt section I00 is mounted upon the coil spring 98, in turn supported by the insulating bushing 96. Bushing 96 is provided with a lower section I04 threaded to which is bolt I06 extending through bushing 96 and threadedly engaging lock nuts I06, I08 and the internally threaded member 1 I 0 upon which the spring 90 is supported.
Having thus described my invention, what I claim is:
1. A short wave antenna system comprising a support, an insulator carried by said support, an open helical spring having one end mounted on said insulator and a short straight light weight antenna rod mounted on the other end of said spring.
2. A short wave antenna system comprising a support, an insulator carried by said support, an open helical spring having one end mounted on said insulator and a short straight light weight antenna rod removably mounted on the other end of said spring.
3. A short wave antenna system comprising a support, an insulator carried by said support, an open helical spring having one end mounted on said insulator, a split chuck mounted on the other end of said spring and a short light weight antenna rod removably mounted in said chuck.
4. A short wave antenna system comprising a support, a feed-through insulator carried by said support, a clamping bolt passing through said insulator and means for energizing said antenna connected to one end of said bolt, a helical spring having spaced turns mounted on the end of said bolt, a split chuck mounted on the other end of said spring remote from said bolt and a light weight antenna rod removably mounted in said chuck.
JARRETT L. HATHAWAY.
US173790A 1937-02-25 1937-11-10 Antenna Expired - Lifetime US2161707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US173790A US2161707A (en) 1937-02-25 1937-11-10 Antenna

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US127628A US2180107A (en) 1937-02-25 1937-02-25 Short wave transmitter
US173789A US2217313A (en) 1937-02-25 1937-11-10 Radio apparatus
US173790A US2161707A (en) 1937-02-25 1937-11-10 Antenna

Publications (1)

Publication Number Publication Date
US2161707A true US2161707A (en) 1939-06-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
US173790A Expired - Lifetime US2161707A (en) 1937-02-25 1937-11-10 Antenna

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419611A (en) * 1943-04-30 1947-04-29 Rca Corp Shock mount for collapsible antennae
US2498350A (en) * 1943-04-30 1950-02-21 Rca Corp Shock mount for collapsible antennas
US2546026A (en) * 1947-04-15 1951-03-20 Gen Electric Flexible antenna mounting
US3599196A (en) * 1968-05-31 1971-08-10 Pinkerton S Inc Plural chambered, oscillator-coaxial line resonator-detector assembly for moving object detection systems
US3611333A (en) * 1969-01-29 1971-10-05 Nicholas Conigliaro Mailbox operated electronic signal device
US4266227A (en) * 1979-08-20 1981-05-05 Avanti Research & Development, Inc. Mounting for mobile communications antenna
FR2692078A1 (en) * 1992-06-04 1993-12-10 Lerc Support assembly for portable field radio aerial - comprises spring mounting with two sockets allowing aerial to adopt two different angular positions

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419611A (en) * 1943-04-30 1947-04-29 Rca Corp Shock mount for collapsible antennae
US2498350A (en) * 1943-04-30 1950-02-21 Rca Corp Shock mount for collapsible antennas
US2546026A (en) * 1947-04-15 1951-03-20 Gen Electric Flexible antenna mounting
US3599196A (en) * 1968-05-31 1971-08-10 Pinkerton S Inc Plural chambered, oscillator-coaxial line resonator-detector assembly for moving object detection systems
US3611333A (en) * 1969-01-29 1971-10-05 Nicholas Conigliaro Mailbox operated electronic signal device
US4266227A (en) * 1979-08-20 1981-05-05 Avanti Research & Development, Inc. Mounting for mobile communications antenna
FR2692078A1 (en) * 1992-06-04 1993-12-10 Lerc Support assembly for portable field radio aerial - comprises spring mounting with two sockets allowing aerial to adopt two different angular positions

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