US2307362A - Illuminated globe - Google Patents

Description

1943. IR. R. DUPLER 2,307,362

ILLUMINATED GLOBE Filed March 1942 Eayhzml R Da; Zer

INVENTOR I ATTORNEY Patented Jan. 5, 1943 UNITED STATES PATENT OFFICE 2,307,362 ILLUMINATED GLOBE Raymond R. Dupler, Toledo, Ohio Application March 6, 1942, Serial No. 433,595

3 Claims.

This invention relates to illuminated globes but more particularly to globes having transparent or translucent walls which are illuminated by a lamp mounted on the inside of the globe, and an object is to produce a new and improvedilluminated globe structure by which the illumination is enhanced, the structure improved, assembly facilitated, and the appearance of the assembly improved.

Other objects and advantages of the invention will hereinafter appear and for purposes of illustration but not of limitation, an embodiment of the invention is shown on the accompanying drawing in which Figure l is a vertical sectional elevation of the globe or sphere showing the mounting thereof within a full meridian ring;

Figure 2 is an enlarged fragmentary sectional view through the meridian ring and globe and showing the mounting for the lamp and the switch therefor; and

Figure 3 is a sectional view substantially on the line 3-3 of Figure 2 showing particularly the operating switch for the lamp.

The illustrated embodiment of the invention comprises a globe or sphere which may be of glass, plastics or other suitable transparent or translucent material. The sphere is made up of two identical sections each of which is formed with an internal rim or flange 12 which abuts against a similar flange on the other section and is adhered thereto by a suitable cement or adhesive. The walls of this sphere at diametrically opposed portions, are enlarged as at l3 and each of the enlargements I3 is formed with a socket or i" recess I4 which is open to the outer side of the globe. Extending from the bottom of each recess I4 is a smaller aperture 15 leading to the inside of the globe.

Projecting inside of the lower recess I4 is an annular head 16 which has a depending post H. The post I1 extends into a socket I8 formed in an enlargement IS on a full meridian ring or annulus 29. The underside of the head I6 is substantially flush with the adjacent exterior surface of the globe l0. Interposed between the upper end of the head It and the bottom of the respective recess I4 is a nut 2| which screwthreadedly engages the bottom end portion of an elongate tube 22. is likewise screw-threaded to receive a nut 23 which abuts against the bottom of the upper socket I4 of the globe I0. In this manner the tube 22 is securely held in place by the clamping action of the nuts 2| and 23.

ALI

The upper end of the tube 22 Fitting into the upper annular socket l4 and abutting against the nut 23 is an annular disc or plug 24 which bears at its upper end against the inner end of the enlargement 25 on the meridian ring which is diametrically opposed to the lower enlargement l9. Screws 26 extend through the enlargement into the plug 24 to retain it in position.

Arranged on opposite sides of the tube 22 are elongate slots 21 through which light rays are emitted from an elongate electrical incandescent lamp 28. The lamp 28 has upper and. lower end members 29 and interposed between the head l6 and the lower end member 29 is a coil spring 3!! which urges the upper end member 29 against the bottom end of the annular plug 24. The post I! is formed with an aperture or channel 3| to receive electric wires 32, one of which is suitably connected to the lower end piece or contact member 29 and the other leading to the upper end piece or contact piece 29.

The plug 24 is formed with a cavity or opening 33 to accommodate a switch knob 34. As indicated, the plug 24 has an annular portion fitting the upper socket l4 and the upper portion thereof is reduced to a size commensurate with the cross section of the meridian ring 20 as indicated in Figure 3. This enables the switch knob 34 to extend laterally sufliciently to afiord convenient manipulation thereo Depending from the switch knob is a stem 35 for actuating the switch. Since the details of the switch mechanism form no part of the present invention and are well understood by those skilled in this art, detailed description and illustration thereof is not considered necessary.

From the above description it will be readily apparent that an exceedingly simple assembly is provided. By removing the screws 26, the globe I0 may be tilted relative to the meridian ring 20 to permit removal of the plug 24 and associated parts. When the globe I0 is tilted in this manner the coil spring 39 pushes the bulb 28 outwardly with respect to the tube 22 to enable it to be replaced. The tube 22 may be secured in place by the nuts 2| and 23 and the lamp 28 and spring may be readily and conveniently removed.

One important feature of this construction is keeping to an absolute minimum the dark spots at th opposite ends of the globe. By providing an elongate lamp such as above described, virtually the entire surface of the globe is uniformly illuminated. This is particularly of importance when a globe of this character is covered with a terrestrial or celestial map since practically all portions of the map will be uniformly illuminated to aiford more convenient study and inspection.

It is to be understood that numerous changes in details of construction, arrangement and operation may be effected without departing from the spirit of the invention especially as defined in the appended claims.

What I claim is:

1. An illuminated globe comprising an arcuate support, a globe having translucent Walls carried by said support, diametrically opposed external recesses in said globe, apertures from said recesses to the inside of the globe, an elongate tube extending across the inside of the globe and having screw-threaded end portions disposed in said recesses respectively, nuts on said threaded end portions abutting the bases of said recesses for clamping the tube in position, said tube being apertured for emitting light rays therethrough, an elongate lamp within said tube, and means for supplying current to said lamp.

2. An illuminated globe comprising an arcuate support, a globe having translucent walls carried by said support, diametrically opposed external recesses in said globe, apertures from said recesses to the inside of the globe, an elongate tube extending across the inside of the globe and having screw-threaded end portions disposed in said recesses respectively, nuts on said threaded end portions abutting the bases of said recesses for clamping the tube in position, said tube being apertured for emitting light rays therethrough, an

5 relative to said support, a switch carried by one of said pivoting members, and the other member being apertured to receive wire for said lamp.

3. An illuminated globe comprising an arm-- ate support, a globe having translucent walls 10, carried by said support, diametrically opposed external recesses in said globe, apertures from said recesses to the inside of the globe, an elongate tube extending across the inside of the globe and having screw-threaded end portions dis- 15 posed in said recesses respectively, nuts on said threaded end portions abutting the bases of said recesses for clamping the tube in position, said tube being apertured for emitting light rays therethrough, an elongate lamp within said tube,

20 each of said recesses being annular, pivoting members engaging in each recess and carried by said arcuate support enabling turning movement of the globe relative to said support, a switch carried by one of said pivoting members, and the 5 other member being apertured to receive wire for said lamp, said switch carrying member being in the form of an annular disc having a part engaging in said recess and another part abutting the inner surface of said arcuate support, screws 30 passing through said support securing said disc in place, and an opening in the disc providing access to said switch.

RAYMOND R. DUPLER.

Images