US2082266A - Illuminating device - Google Patents

Description

June 1937. 1.. L. STAFFORD ILLUMINATING DEVICE Filed June 6, 1936 Patented June I, 1937 UNITED STATES PATENT OFFICE 1 6 Claims.

This invention is an illuminating lamp structure.

An object of the invention is to provide a lamp structure which, by reason of its peculiar fabrication, produces a very distinctive light elfect and at the same time has high attractive utility, either when lighted or unlighted.

A further object of the invention is to pr vide a lamp structure embodying a columnar wall or shell wherein a plurality of reflective, perforated surfaces are so combined as to produce a large number of light disseminating crevices circularly disposed about a central source of light within the column.

A further object is to provide a lamp structure incorporating a column and means to illuminate it internally and externally, and including a source of light for direct or general illumination of surfaces extramural of the column.

The invention consists of certain advancements in this art as set forth in the ensuing disclosure and having, with the above, additional objects and advantages as hereinafter developed, and whose construction, combination and details of means, and method of production, and the manner of operation will be made manifest in the description of the herewith illustrative embodiment; it being understood that modifications, variations and adaptations may be resorted to within the scope, principle and spirit of the invention as it is more directly claimed hereinafter.

Figure 1 is a side elevation of thelamp, on a small scale.

Figure 2 is a plan; omitting a dome part of the lamp. 7

Figure 3 is a horizontal, diagrammatic, crosssection of the column of the lamp; its Wall thickness being about full size.

Figure 4 is an end view of one of the blade units of which the column is built. Figure 5 is a face View of one of the blades, and Figure 6 is an edge view thereof.

Figure 7 is a diagrammatic, edge view of adjacent, nested, radially disposed blades of the column wall.

The lamp includes a column 3 of any desired height and diameter with its lower end fixed in a suitable base 4 which is here shown with a number of electric light bulbs 5 for casting light upwardly onto the column 3 to illuminate it by closing of a switch 5 in a conventional circuit, not shown, for the bulbs.

On the column is arranged a translucent, removable top or dome 6 and a shadow casting grill or other device 1 shadow effect in the light in the column.

This source of light is here shown as a bank of light bulbs i0 ofany desired color or combination of colors, mounted on a turn-table Ii fixed to a suitably rotated shaft I2 operatively mounted in the column 3.

A source of light, such as bulb i 5, above the dome 6 provides for general illumination about 10 the lamp; the bulb being in a simple circuit having a switch l5 A further feature of the invention resides; in the structure of the column 3. This'is formed of a number of strip-like blades 29 arranged with their length vertically and their width radially of the column. The blades are of thi corrugated material such as sheet metal and are shown at about full size in Figs. 3-6, inclusive, though the size'may be varied as desired. The corrugations lie diagonal to the length of the strip or blade 2|] and the outer or face ridges Z! of the corrugations are longitudinally slotted at 22 and along edges of the slots extend lips 23 formed by outbending the 25 material when the slots are formed in the material, no claim being made to the blade device itself apart from the column structure here disclosed.

In building the column the blades 20 are laid close together as indicated in Figs. 3 and '7. and formed into a circle of desired diameter; all of the blades facing one way and closely nested so that their outer edges will each present a serpentine outline, each spaced slightly apart around the column. As the blades are nested they take a relative position, one on the other, such that the corrugations showing along the edges of the blades give a helical line appearance to the exterior of the column, as is indicated in Fig. 1. The blades are sufiiciently still so as not to be crushed when they are firmly nested and secured.

The blades may be made reflective in any desired manner, as by polishing or by suitable coating and it will be seen that when the light bulbs iii are energized, under control of their circuit switch lil the generated waves of light therefrom will either pass directly through the multitude of interstices Z5 radially between the nested blades 20 or will be reflected therethrough after impinging the surfaces of the blades.

It is understood that divers internal and external lighting arrangements and effects may be serves to produce a dome from a source of incorporated within the broad concept of this invention.

What is claimed is:

1. An illuminating lamp structure including a column comprising a wall formed of a plurality of thin, firm, corrugated, strip-like blades nested one against the other in fixed relation and providing interstices through the wall, and a source of light arranged in the column and from which light passes outward through the interstices either directly or by reflection from the blade surfaces.

2. A column consisting of a plurality of thin, firm, corrugated, strip-like blades nested one on the other around the column; said blades being arranged with their length vertically and. their width radially in a circle around the column and presenting exterior, serpentine edges along the column, and forming outwardly open ing interstices from the interior of the column.

3. A column as set forth in claim 2, and in which the blades have perforations from face to face and in communication with the contiguous interstices.

4. A column as set forth in claim 2, and in which the corrugations are oblique to the length of the blades.

5. A column as set forth in claim 2, and wherein the said edges present a helical appearance around the column.

6. A column as set forth in claim 2, and in which there is a source of light arranged in the column for diffusion of light through the interstices.

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