US1838679A

US1838679A - Mounting for radio antenne

Info

Publication number: US1838679A
Application number: US88887A
Authority: US
Inventors: Jr Herman Hollerith
Original assignee: RCA Corp
Current assignee: RCA Corp
Priority date: 1926-02-17
Filing date: 1926-02-17
Publication date: 1931-12-29
Anticipated expiration: 1948-12-29

Description

1931. H. HOLLERITH, JR 1,338,679

MOUNTING FOR RADIO ANTENNE Filed Feb. 17, 1926 2 Sheets-Sheet 1 Dec. 29, 1931. H HQLLERITH, JR 1,838,679

MOUNTING FOR RADIO ANTENNZE Filed Feb 1 1926 2 Sheets-$heg 2 Patented Dec. 29, 1931 1 UNITED. STATES PATENT OFFICE HERMAN HOLLERITH, .13., or mvnn'ron, NEW JERSEY, AssIGivoB, Y MESNE Assren MENTS, To name CORPORATION or AMERIGA,LOFNEW YORK, IN'.,Y., A CORPORATION or DELAWARE Motr vrme ron, memo ANTENNAS A pplicat ion filed February 17, 1922;. Serial no. ss,ss7.

This invention relates to coil or loop antennm for use 1n rad1o s1gnalmg, andmore particularly to'means for mounting an an tenna of this character."

5 In order to receive the strongest signal, or

to pick up the maximum amount of radiant s1gnal energy, an antenna of this type must be so mounted that it can be moved to bring the vertical plane of the coil into a plane secured by providing mountings for the same which are separate and independent of the mountings for the radio instruments with which said antennae are associated. The antenna mounting is usually seated on top' of the cabinet for the radio instrument where it not only presents an unpleasing appearance, due to the construction necessarily employed, but is likely to be; overturned and damaged. 7 r

An object of the present invention'is to provide, in combination with asupporting membersuch as a radio receiving instrument cabinet or a combined radio and talking machine cabinet, a coil or loop antenna which may be readily adjustedto a position to se cure maximum signal reception.

Another object of this invention is to provide novel means for mounting a coil or, loop antenna on a cabinetof the above character.

A further object is to provide, in combi-j nation with a cabinet, a novel mounting for a coil or loop which is so constructed that said coil or loop, when not in use, may .be disposed-against the bottom of the supporting cabinet in order that rthe antenna will 0 be out of view and will not detract fro the appearance of the cabinet. p A still further object is to provide anovel cabinet mounting. for a coil or loop antenna which is so constructed that thelatter may be moved about a vertical axis into any desired vertical plane, and may alsobe swung about a horizontal axis for disposition adjacent the bottom of the cabinet: These and other objects will appear more fullyihereinafter.

"The invention will be readilyunderstood by reference to the accompanying drawings Which illustrate'one embodiment of the present invention. It is to beeXpresslynnderstood, however, that these drawings are for the purpose of illustration only and are not designed as a definition of'the limits of the invention, reference being had to the append ed claims for this purpose.

Inthe drawings,-wherein like reference 0 characters refer to like parts throughout the several views, p i I 'Fig. 1 is a perspective view illustrating one manner in which a loop antenna may be mounted in accordance with the present invention, on the lower surface of a cabinet such as a combined talking machine and radio cabinet,fportions of the latter being broken away; i V

Fig. 2 is a perspective View illustrating one manner in which the antenna may be housed when not in use; ,4

Fig. 3 is a perspective view illustrating theantennain a position at 90 from the positions shown in Figs. 1 and 2 respectively; and z r b Fig. 4 is a sectional side elevation, somewhat enlarged, illustrating the details of one'type of mounting which may be employed. V

Referringxto the drawings,the reference character 1 represents a cabinet, such as a radio receiving instrument cabinet, or for a combined talking machine and radio receiv ing instrument cabinet of any suitable type, 85 which is provided with a bottom or closure I member 2, a suitable. number of supporting legs 3, and bracing members 4 and 5- for'said legs. Suitably attached to the bottom 2 at a convenient point, is a bracket member 6 which is preferably bent and shaped into such form as to comprise two triangular-shaped side portions 6a and 6b which are substantially at right angles onewith the other. As shown, the bracket 6 be provided with a suit;- able numbe'r ofintegrally formed cars for attac'hing'the bracket to the cabinet bottom 2. j A pair of vertically alinedyears 7, which. arepreferably formed integral with p the stationary bracket 6, are provided with 100 registering openings through which passes a pivot member 8. As shown, this pivot member may be constituted by a fiat-headed bolt that is secured in position by means of a split pin 9. Attached to the vertically disposed pivot member 8, intermediate the ears 7, is a substantially triangular-shaped bracket member 10, the connection between said member and pivot member 8 preferably being by means of a pair of vertically alined ears 11 which, as shown, are formed integrally with the member 10.

A second pivot member 12 is mounted in the swinging bracket 10 in a horizontal position, as by means of a pair of horizontally disposed ears 13. Secured in any suitable manner to the pivot pin 12, as by means of a pair of upstanding ears 14, is a plate 15 which is attached, as by means of screws to a frame 16 which may be of any suitable outline but which is illustrated in the drawings as being substantially rectangular. l/Vound around the frame 16 or, if desired, enclosed in a housing constituted by said frame 16, is a coil or a loop antenna consisting of a plurality of turns of suitable wire 17 The electrical characteristics of the coil constituted by the wire 17, such as inductance and resistance, constitutes no part of the present invention.

The opposite ends of the coil are suitably secured to terminal posts 18 mounted at a convenient point on the frame 16 and a pair of terminals 19 lead from said posts through an opening, or openings, 20 in the closure member 2, to the radio instrument housed in the cabinet 1.

Secured to one side of the frame 16, and preferably adjacent the corner of said frame opposite that to which the plate 15 is secured, is a bracket 21 that is provided with net there is attached an angular-shaped supporting member 23 which is adapted to rec eive and detachably retain the pivot pin 22.

Suitable means are preferably provided for yieldingly retaining the frame 16 against the bottom 2 of the cabinet. In the form shown, this means, which coacts with the supporting brackets described above, is constituted by a yielding spring catch 24 which is adapted to engage one end of the frame 16.

\ If desired, a wear plate 25 may be secured to lVhen the radio receiving instrument with' which the antenna is associated is not in use, the latter is preferably in the position shown in Fig. 2. In this position the frame 16 is yieldingly supported at one end by the spring catch 24 and at its opposite end is positively 1 supported by pivot pin 22 coacting with supporting member 23, and also by means of the universal mounting constituted by

brackets

6 and 10, plate 15 and

pivot pins

8 and 12. Vhen it is desired touse the radio instrument, the coil 17 and consequently the frame 16, is swung about the horizontal axis constituted by

pivot pins

12 and 22, to the position shown in Fig. 3, i. e., the frame 16 is swung through 90 from the horizontal position shown in Fig. 2 to the vertical position shown in Fig. 3, a slight pressure only being necessary to disengage the frame from the spring catch 2%.

If the cabinet 1 is so placed that the vertical plane of the coil 17 does not pass through the transmitting station it is desired to receive, the frame 16 may be swung about the vertical axis of the pivot pin 8 to the desired posit-ion. Only aslight pressure is required to swing the frame 16 about the pivot 8 since pin 22 will readily slide out of engagement with the supporting portion of member 23. The relative proportions of the frame 16 and legs 3 of the cabinet 1 are such that frame 16 has free movement between the bottom 2 and the bracing members 4:, 5 in a vertical plane and consequently free movement for swinging about the horizontal axis of the

pins

22 and 12.

There is thus provided a coil antenna in combination with a supporting cabinet, the antenna being so mounted that the same may be swung about a horizontal axis for dispo sition against the bottom of the cabinet when the antenna is not in use and which may be readily moved to a vertical position and swung about a vertical axis into any desired vertical plane. When swung into the horizontal position for disposition against the bottom of the cabinet, the antenna is hid from view and does not detract from the pleasing appearance of the cabinet. The device is simple in operation and inexpensive to m anufacture. The'likelihood of damage to the antenna resulting from the use of a separate mounting for the same is avoided.

lVhile one embodiment of the invention has been illustrated and described with considerable detail, it is to be expressly understood that the invention is not limited thereto. For example, the frame 16 may assume various shapes as desired, and the

members

21, 22, 23 may or may not be employed. Various other changes may be made within the limits of the appended claims.

What is claimed is: i

1. In combination, a cabinet, a coil antenna, and means for securing said coil antenna to the bottom of said cabinet, said means in cluding a member permitting movement of the antenna about a vertical axis into a desired vertical plane and a member permitting movement of said antenna about a horizontal axis for disposition against the bottom of the cabinet.

2. In combination, a cabinet, a bracket secured thereto, a coil antenna, means includmg horizontal and vertical p vot members for securing the antenna to said bracket, and

means for yieldingly securing said antenna in horizontal position beneath said cabinet.

3. In combination, a cabinet, a frame, an antenna carried by said frame, means permitting movement of said frame about horizontal and vertical axes for connecting the frame to said cabinet, and means for 'yieldingly maintaining the frame in a substantially horizontal position adjacent the bottom of said cabinet.

4. In combination, a cabinet, a bracket secured to the bottom of the cabinet, a second bracket pivotally secured to said first-named bracket, a loop antenna pivotally secured to said second'bracket, and means carried by the cabinet and adapted to engage the loop antenna to maintainthe latter in a substantially horizontal plane beneath said cabinet.

5. In combination, a cabinet, a bracket secured to the bottom of'said cabinet, a verti cally disposed member carried by said bracket, a second bracket secured to said member,

a horizontally disposed member carried by said second bracket, a loop antenna, means for securing the said antenna to said horizontal member, and means including a resilient member carried by the cabinet for maintaining said antenna in a substantially horizontal plane beneath said cabinet.

6. In combination, a cabinet having a horizontally disposed bottom portion, supporting means for the cabinet, a frame, a loop antenna carried by the frame, pivot means for securing said frame to the bottom por-. tion of said cabinet, said pivot means permitting movement of the antenna about ver- .1 tical and horlzontal axes, and additional means on said frame adapted to pivotally engage said cabinet when said frame is moved about its horizontal axis. I

7. In combination, a talking machine cabinet, supporting legs therefor, a substantially rectangular frame, an antenna carried by the frame, means secured to said frame adjacent an upper corner thereof and to said cabinet, in substantially the same plane as the upper ends of said legs, for pivotally connecting said antenna to the cabinet, said means permitting pivotal movement of the antenna about vertical and horizontal axes, and a pivot member adjacent the opposite upper corner of said frame adapted to pivotally engage said cabinet when the frame is moved about its horizontal axis.

In testimony'whereof I have signed this specification.

' HERMAN HOLLERITI-I, JR.