US2092573A - Lighting appliance - Google Patents

Description

Se t. 7, 1937. I I L. QDQANE 2,09

LIGHTING APPLIANCE Filed Da e. 7, 1935 INVENTOR Z/FEOY C. DOA/v15.

' ATILORNEY Patented Sept. 7, 1937 UNITED STATES LIGHTING APPLIANCE Leroy C. Doane, Merlden/Comn, assignor to The Miller Company, Meriden, Conn., a corporation of Connecticut Application December 7, 1935, Serial No. 53,341

11 Claims.

The present invention relates to lighting appliances and vis more particularly directed toward light appliances designed for edge lightin and direct lighting.

According to the present invention, the lighting appliance is provided with a panel of translucent material carried in a suitable frame, and the light source is secured to the frame so as to be movable from a position opposite the edge of the panel where edge lighting is obtained to a position where the direct light from the light source is emitted for direct lighting.

In the preferred construction, thepresent invention employs -a reflector placed about the light source and arranged so that when the light source is in position for edge lighting, all the light flux from the source is directed into the translucent panel or panels and none of the light is allowed to escape for general illumination. The reflector and light source may move away from the edge lighting position and may also preferablybe adjustedso as to control the angle in which the direct light is emitted. Other and further objectsof the invention will 25 appear as the description proceeds. The accompanying drawing shows, for purposes of illustrating the present invention, several embodiments in which the invention may take form, it being understood that the drawing is il- 30 lustrative of the invention rather than limiting the same.

In this drawing-- Fig. l is a, vertical elevational view with parts in section on the line l--l of Fig. 2;

Fig. 2 is a vertical sectional view on the line 2-2 of Fig. 1; Fig. 2a is a fragmentary section of the line 2a of Fig. 1; and

Figs. 3 and 4 are diagrammatic views illustrating modified forms of construction.

lighting appliance is provided with a'co'mparatively heavy bottom member |li. A base-forming element .II is secured to it by screws indicated at II. The base II is hollow from underneath, as

45 shown, and supports an upwardly extending U- shaped panel receiving frame 13, the upper face of the base ll being preferably slotted to receive theframe l3. Screws l4 secure these parts together. The frame I3 is openat the top, as in- 50 dicated at l5, so as'to receive two translucent glass panels l6 and- These panels are preferably spaced apart, as shown, and each carries a design adapted to be brought out by edge lighting.

A tubular U-shaped frame 20 is adjustably se-- 55 cured in the base I l. The bottom horizontal por- In the construction shown in Figs. 1 and 2, the

tion 2| of this frame is clamped between straps 22 and the casting II. This tubular frame member carries the wiring 23 and a pin 24 carried by the tube 20 enters slots 24a in the casting and 24b in one of the straps so as to keep the U-shaped frame member in position as shown in Fig. 2a. This pin prevents endwise movement of the frame member and also limits the amount that the U-shaped frame may be swung. The upper ends 25 and'26 of the .iJ-shaped frame are secured to a trough or hood 21. The hood 21 is mounted on the ends of the tubular member for adjustment about a horizontal axis. The hood 21 carries a reflector 28 and this reflector is provided with clips 29 and 30 adapted to support a lamp socket 3| and lamp bulb 32.

The reflector 28 is secured in place behind flanges 33 at the bottom of the hood. The reflector is apertured, as indicated at 34 to permit escape of heated air. This air passes through a longitudinally extending slot 35 in the hood, and I this slot is covered by a ba'iile'".

When the parts are in the position shown in I full lines, the light source reflector and associated elements are directly above the opening in the panel-supporting frame and all the light flux is projected down into the upper edges of the glass and between the glass panels so that the design carried by the panels is brightly illuminated. When one desires to obtain general lighting from the device, the frame 20 is swung toward the dot and dash line position of Fig. 2 and the direction in which the light rays are projected may be adjusted byv swinging the reflector and associated parts on their pivotal -mountings. This is aiso'indicated in Fig. 2.

The straps 22 provide suflicient friction to hold the arm 20 in any adjusted position, and the extent to which it can be swung depends upon the length of the slots engaged by the pin 24. 40 Where two panels are employed, as indicated in the drawing, the device may be arranged for swingingthe light source to either side of the vJedge lighting panels so that direct light may be had on theright or left side, as the device is viewed in Fig. 2.

In the form shown in Fig. 3, the base 34' is provided with an upright 35' having a vertical pivot at 36'. This pivot supports the socket reflector and lamp bulb indicated generally at 31'. These parts can be swung, as indicated by the arrows, to adjust the position of the light source relative to the edge lighted panels 38'. I

In the arrangement shown in Fig. 4, the base 40 is provided with a frame 4| opening at the sides, and two hinged units 42 and 43 are secured, as shown. These hinged units include a light source and a reflector so that the light may be directed into the side edges of the glass or may be projected downwardly for direct lighting when the parts-are in the dot and dash line position.

It is obvious that the invention may be embodied in many forms and constructions within the scope of the claims, and I wish it to be understood that the particular forms shown are but a few of the many forms. Various modifications and changes being possible, I do not otherwise limit myself in any way with respect thereto.

What is claimed is:

1. A lighting appliance adapted for edge lighting and direct lighting, comprising a base, a panel-receiving frame supported from the base and having an open edge, a translucent display carrying panel carried in said frame with one edge thereof adjacent the open edge of the frame so that light rays may enter the panel for diffusion therein and producing edge lighting, a light source, a reflector about the source, a device for supporting the source and reflector for movement from the position where the light source is directly opposite the edge of the panel to positions where the light is emitted for direct lighting.

2. A lighting appliance as claimed in claim 1, wherein the supporting device includes a vertically extending arm pivoted to the base to swing in a vertical plane.

3. A lighting appliance as claimed in claim '1, wherein the supporting device includes a vertically extending arm pivoted to the base to swing in a vertical plane, and the reflector is pivoted on the upper end of the arm to swing in a horizontal axis. e

4. A lighting appliance as claimed in claim 1, wherein the supporting device includes a vertical pivot post adjacent the upper edge of the panel and the socket and reflector swing in a horizontal axis.

5. A lighting appliance as claimed in claim 1, wherein the light source and reflector are dis posed along one side edge of the panel and are pivoted to swing in the plane of the panel and about a horizontal axis.

6. A lighting appliance adapted for edge lighting and direct lighting, comprising a base, a panel-receiving frame supported from the base and having an open edge at the top, a translucent display carrying panel carried in said frame with the upper edge thereof adjacent the open edge of the frame so that light rays may enter the upper edge of the panel for diifusion therein and producing edge lighting, a light source, a reflector about the source, a device for supporting the source and reflector for movement from the position where the light source is directly over the edge of the panel to positions where the source is swung in front ofthe panel so that the light is emitted for direct lighting.

" 7. A lighting appliance as claimed in claim 6,

wherein the reflector is adjustable about a horizontal axis through'the source so that the angle of the direct lighting beam relative to the vertical may be adjusted.

8. A lighting appliance adapted for edge lighting and direct lighting, comprising a base, a panel-receiving frame supported from the base and having an open edge at the top, a translucent display carrying panel carried in said frame with the upper edge thereof adjacent the open edge of the frame so that light rays may enter the upper edge of the panel for diflusion therein and producing edge lighting, a movable frame pivoted to swing about a horizontal axis, a light source and a reflector about the source, the source and reflector being carried by the movable frame and being movable from theposition where the light source is directly above the edge of the panel to positions where it is swung in front of the panel so that the light is emitted for direct lighting.

9. A lighting appliance as claimed in claim 8, wherein the movable frame includes a U-shaped member pivoted to the base below the same and extending up alongside the edges of the panel, and wherein the reflector is secured to the upper ends of the U-shaped member.

10. A lighting appliance adapted for edge lighting and direct lighting, comprising a base, a panel-receiving frame supported from the base and having an open edge at the top, a translucent display carrying panel carried in said frame with the upper edge thereof adjacent the open edge of the frame so that light rays may enter the upper edge of thepanel for diffusion therein, a U-shaped member pivoted to the base below the panel and extending up alongside the edges of the panel, a trough-shaped reflector having its ends secured to the upper ends of the U-shaped member for adjustment about a horizontal axis, a light source supported inside the reflector, the U-shaped member being swingable to shift the source and reflector from above the panel to positions in front of the panel, and

. means limiting the extent of such swinging movement.

11. A lighting appliance adapted for edge lighting and direct lighting, comprising a base, a panel-receiving frame supported from the base and having an open edge, two parallel spaced translucent panels carried in said frame, each with an edge thereof adjacent the open edge of the frame so that light rays may pass between the panels and also enter the panels for diffusion therein and producing edge lighting in both directions, a display carried by one of the panels, a combined light source and reflector, and mounting means therefor whereby the source and reflector may be moved from the position where the light source is directly opposite the edges of the panels to positions to either 'side of the panels so that the light is emitted downwardly for direct lighting. ,1

LEROY c.

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