US1577777A - Illuminating globe - Google Patents

Description

March 23 1926. 1,577,777 1 C. E. WHALIN ILLUMI NATI NG GLOBE Filed April 15, 1924 ATTORNEY Mar. 23, 1926.

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CHARLES E. WHALIN, OF SALT LAKE CITY, UTAH.

ILLUMINATING GLOBE. I

Application filed April 15, 1924. Serial No. 706,640.

To all whom it may concern:

Be it known that I, CHARLEs E. VVI-IALIN, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented certain new and useful Improvements in Illuminating Globes, of which the following is a specilication.

My invention relates to lenses for intensifying light rays and has for its object to provide a globe for use with an electric light in lanterns, flashlights, lights on road vehicles, house and street lighting, and which is made of a plurality of annular convex lenses spaced apart and integral with lano-convex lenses, and an annular concavo-eonvex lens integral with a plane-convex lens, the whole presenting a spherical appearance, with an internal opening with combination of shapes approaching a cylinder in shape, and with the bottom of the said opening formin the annular concavo-convex lens integral with the plane face of the plane convex lens.

These objects I accomplish with the device illustrated in the accompanying drawings, in which similar letters and numerals indicate like parts throughout the several views and as described in the specification forming a part of this application and pointed out in the appended claims.

In the drawings in which I have shown a substantial embodiment of my invention, Figure 1 is a top plan View of the globe used for lantern illumination. Figure 2 is a side elevation of the globe with the interior opening shown in dotted lines. Figure 3 18 a section of the globe on lines 3-3 of Figure 2. Figure A is a section on lines l-4-. of Figure 2.

The invention consists of a globe G made of lens glass that has a spherical exterior which provides the convex surfaces for all of the lenses. The said globe has an open iwliiicli'ically-shaped hole or opening therein with its bottom a plane circular surface, as at 1, which forms the plane side of the lano-convex lens B, or bulls-eye portion of my device. A portion of the bottom 1 and a small portion l of the side wall of said opening A are curved inwardly to form an annular coneavo-convex lens, and the other portion of the side wall diverges slightly outward from a true cylinder, or.

the frustum of a pyramid, for purposes of construction, as it has been found in the casting of said globes that the plunger used verging than as shown. The sides of said internal opening A are a combination of plano-concave lenses 5, spaced apart by portions of an annular convex lens 6, said portions 6 being concentric with the circumference of the globe. The portion of the globe G surrounding the edges of said openin A is extended as a neck 2 and is externally threaded, as at 3, to provide means for securing the globe in place. An electric bulb, not shown, and smaller than the said opening A, is used as a source of light when the globe is to be used in lanterns, flashlights, head and tail lights for road vehicles. and other small illuminations. And for larger illuminations, such as house and street lighting, a more diverging form is given the opening A, and a larger bulb is used. A globe thus constructed will direct rays of light focused at one point from the end of plano-convex lens B, and will direct rays of light focusing at different points for each plano-concave lens 5, and between these points the annular convex lenses will direct their respective rays in a broken line concentric with the outer perimeter of the globe A, and will diffuse and intensify the rays of light passing through the annular concavo-convex lens.

Having thus described my invention and some of its uses, I desire to secure by Letters Patent and claim 1. An illuminating globe comprising a transparent glass member spherical in general outward form except one portion thereof which is outwardly extended; and externally threaded; a plane-convex lens formed by a portion of said glass member with the plane surface formed by the bottom of a cylinder shaped opening concentric with the perimeter of said glass member and said neck piece; annular concavo-convex lenses formed by portions of the perimeter of said glass member and the annular concave portion of the cylindrical opening therein; and plano-convex lenses spaced apart by annular convex lenses.

2. An illumination globe consisting of a spherically shaped transparent globe, having an extended neck piece integral with a portion of said globe and externally threaded and by which the globe is held in place, which neck piece and globe are hollowed out by a converging recess, in combination with different lenses formed by the walls of said recess as one face of each lens and with the surface of said globe forming the other face; a piano-convex lens at-the bottom of' said recess; an annular concavo-convex lens integral with the edge of said planoconvex lens; and a plurality of lano-convex lenses which are spaced apart and are between sections of annular-concavo-convex lenses with one side line thereof in the plane of said neck. piece.

In testimony whereof I have aflixed my signature.

CHARLES E. WHALIN.

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