US2668239A - Coaxial cable antenna connector - Google Patents

Description

Feb. 2, 1954 J. JIPP 2,668,239

COAXIAL CABLE ANTENNA CONNECTOR Filed Aug. 21, 1950 2 Sheets-Sheet l INVENTOR. JOHN JIPP BY W 4 1% ATTORNEY Feb. 2, 1954 J. JlPP 2,668,239

COAXIAL CABLE ANTENNA CONNECTOR Filed Aug. 21, 1950 2 Sheets-Sheet 2 INVENTOR. JOHN .JIPP

ATTORNEY Patented Feb. 2, 1954 COAXIAL CABLE ANTENNA CONNECTOR John Jipp, Houston, Tex., assignor to the United States of America as represented by the Scoretary of the Army Application August 21, 1950, Serial No. 180,687

1 Claim.

(Granted under Title 35, U. S. Code (1952),

sec. 266) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment of any royalty thereon.

The present invention relates to a connector usable primarily with a centerfed, half-wave antenna, and more particularly for connecting such antenna to a coaxial cable.

An object of the invention is to provide a connector which will prevent and relieve undue strain on the antenna and associated elements.

Other objects and advantages will be apparent to those skilled in the art, after reading the following specification, with reference to the accompanying drawings, in which:

Fig. 1 is an elevational view of the connector and associated parts, including a half-wave, center-fed antenna, a coaxial cable, and supporting means (the connector and cable being drawn to an exaggerated scale for clarity) Fig. 2 is a larger elevational view of the connector and directly connected parts of Fig. 1;

Fig. 3 is an elevational view of the inner face of the back plate of the connector, with the coaxial cable connected thereto;

Fig. 4 is an exploded view of the connector and related parts; and,

Fig. 5 is an elevational view of the inner face of the front plate of the connector.

The body of connector 5 comprises mutually opposing front and back plates 1 and 9 respectively, preferably made of an insulating material, of generally triangular form, suitably grooved on the inner face of each to receive, between them, the feeding terminal of a depending coaxial cable It], and drilled to provide registering apertures for the various fastening elements hereinafter mentioned.

Referring to Fig. 4, the cable I is shown as having secured, to its upper end, upwardly inclined, and oppositely directed, bars II and I2, connected respectively to the outer and inner conductors of the cable. The ends of said bars H and !2 are apertured to receive, transversely, the threaded bolts l3 and I4 respectively, which are brazed or soldered to the bars II and !2 so as to be mechanically secured to and form electrical contacts therewith. Cylindrical insulating sleeves l and I6 are mounted on the respective bolts 13 and M on each side of the bars 3 l and i2, and are of a combined length equal to the thickness of the connector 5 by which they are received.

It will be seen from the upper left view of Fig. 4 that the inner face of the back plate 9 is formed with a recess l8 partially threaded, or otherwise roughened, to receive half of the upper end portion of the cable I0 itself, with grooves 20 and 2| to receive the bars H and I2, and with apertures 22 and 23 for the reception of the rear insulating sleeves l5 and [6. Reference to Fig. 5 shows that the front plate 1 has a partially threaded recess 21 formed in its inner face to accommodate the other half of the upper end portion of the cable It. The front plate 1 has apertures 29 and 30, which register respectively with apertures 22 and 23 of the back plate 9, and. receive th other insulating sleeves l5 and [6.

The front and back plates 1, 9, are fastened together by screws 33 to clamp the coaxial cable between the plates, registering apertures 34 being drilled in the plates to receive the screws.

Holes 35 in both front and back plates, at the upper corners thereof, register to receive bolts 36, on which clevises 31 are hingedly mounted, nuts 38 being the fastening elements on these bolts.

The half-wave antenna is secured, at its outer ends, in any usual or preferred manner, to upright supports 40, and comprises halves or parts 4i and 42, the inner ends of which are looped through the clevises 37 and tied with Wires 43 to form closed loops 44, the terminal portions of the antenna being connected to the threaded bolts l3 and [4 by means of washers 45 and wing nuts 46, the coaxial cable in being thereby connected to the antenna, and in such manner as to prevent or relieve undue stresses on the antenna, which was stated to be one of the objects of the invention.

If it is desired, or necessary, to provide additional support for the connector; or to provide means for hoisting the connector, a wire is looped through and secured to a clevis 5| which is secured to the connector intermediate the clevises 37 by bolt 52 provided with a nut 53.

While there has been described what is at present considered to be the preferred embodiment of this invention, it will be obvious to those skilled in the art that various changes and modifications may be made therein without departing from the invention, and it is, therefore, aimed in the appended claim to cover all such changes and modifications as fall within the true spirit and scope of the invention.

What is claimed is:

A connector for coupling a center fed antenna, having inner and outer ends, to a coaxial cable having inner and outer conductors, comprising in combination, a body consisting of two substantially triangular plates of dielectric material secured in face-to-face abutment and being interiorly recessed and roughened to receive and grip said coaxial cable through one corner of said body, terminal means comprising two bars electrically connected respectively to said inner and outer conductors of said coaxial cable, each of said bars having a transversely disposed electrically conducting bolt therethrough and in electrical contact therewith, two clevises swingably secured respectively to the other two corners of said body, the inner end portions of said antenna extending through said clevises respectively and being provided with tie means to form a closed loop through each clevis, and extending respectively to each of said bolts with sufiicient slack to prevent mechanical strain upon the junc- JOHN JIPP.

5 References vCited in the file of this patent UNITED STATES PATENTS Number Name Date 2,063,641 Van Billiard Dec. 8, 1936 10 2,299,213 Fener Oct. 20, 1942 2,422,458 Amy et al June 17, 1947 OTHER REFERENCES Short Wave and Television, for January 1937, 15 page 537.

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