US1775768A - Wall-lamp attachment - Google Patents

Description

Sept. 16, 1930. s. M. KENERSON WALL LAMP ATTACHMENT Filed Oct. 12, 1928 I i?- X,

Patented Sept. 16, 1930 UNITED STATES PATENT; OFFICE ELECTRIC TIME COMPANY, OF SPRINGFIELD, MASSACHUSETTS, A CORPORATION OI CONNECTICUT WALL-LAMP ATTACHMENT Application filed October 12, 1928. Serial No. 312,030.

This invention relates to electric wall lamps and the like, and has for an object the provision of a cover plate and means whereby the same may be attached and removed withoutinjury to the lamp or to the transparent dome or other appurtenances usually associated therewith.

It is also an object to provide means for retaining the cover plate in a convenient position, during removal from the lamp, so that it will be out of the way and yet may be readily replaced. Other objects will appear from the following disclosure.

This invention broadly includes a base plate 18 (which may be permanently attached to the wall and usually carries the electric bulb and connections) a cover plate which may be readily attached to and detached from the base plate, and an extensible resilient member, connecti-ng the base plate and cover plate, permittin separation of the two'plates but arrange to prevent complete separation of the cover plate from the base plate and preferably to also prevent relative sidewise or twisting movement. A specific and typical embodiment of the invention will be described in its application to dome lights such as those used for signal purposes in hospitals, reference being made to to the accompanying drawings in which:

Fig. 1 .is a front view of the lamp;

Fig. 2 is an enlarged view, showing the base plate and the cover plate, in extended relative positions;

Fig. 3 is a cross-section (on line 3-3 of Fig. 1) of an outlet box and lamp assembled with the cover plate, in closed position;

Fig. 4 shows a resilient metal strip for connecting the base plate with the cover plate;

Fig. 5 is a cross section (on line 55 of Fig. 1) of the base closed position; and

Fig. 6 is a side view, with parts broken away, of the base plate-and cover plate, re-

- the base plate and cover plate, in

tained in extended position by the connecting strip.

Referring to the drawings, numeral 1 (Fig. 3) indicates a 'usualform of outlet box, set into arecess in the wall and having suitable electrical connections. Over the outlet box l and extending across its outer side is mounted a base plate 2, which is fastened to the wall by screws 3 and may carry an electric socket 4 for the lamp bulb 5, or a plurality of lamp bulbs, if desired. The base plate 2 is likewise provided with (four) spaced openings 6 adapted to receive correspondingly spaced metallic snap members 7 on the cover plate 8. The latter may be a rigid plate (of metal, bakelite or similar material) having a central opening 9 therein, opposite the lamp bulb 5. The opening 9 may be enclosed by a transparent or colored glass dome 10 which is convex and stands away from the bulb 5, when the plates are in closed position (Fig. The base late 2 has a horizontal opening or slot 11 ig. 2) while to the cover plate 8 is attached one end of a resilient metal strip 12 (by screw 13) the other end of which passes lengthwise through the guide slot 11 preferably with a snug, sliding fit and terminates m an enlarged end or a cross bar 14 which 15 adapted to engageothe edges of slot 11 on the under side and prevent complete re-' traction of the strip therethrough. In closed position, as shown by Fig. 3, the

base plate 2 and cover plate 8 are firmly held 1n close juxtaposition by the medal snaps 7, the strip 12 passing through opening 11 and into the space provided by the outlet box 1. To open, the cover plate 8 is 'pried away from plate 2 as by inserting a screw driver therebetween, (in the finger hole l5),-until the snap fasteners 7 are released from engagement in the openings 6. The cover plate may then be drawn freely forward, the strip 12 sliding through the guide slot 11 until the cross bar 14 engages the edges of the guide slot. The snugfit of the strip 12 in the slot 11 prevents any appreciable lateral said base plate, a rigid cover plate having a or twisting movement of the cover plate, but light transmitting globe corresponding to permits the cover plate to be lowered downthe lamp socket, means for fastening the ward and forward into a horizontal position, cover plate to the base plate, a flat resilient 5 as shown inFig. 6. In this position the strip attached to the cover plate and mov- 7 cover plate is out of the way, giving free able lengthwise through the slot in the base access to the bulb and to the outlet box 1, plate to permit the cover plate to be swung if necessary. When it is to be returned to away from the base plate and lamp socket, closed position, it is merely'raised into verand an element on said resilient strip to pre- 10 tical position and pushed back, the strip 12 vent complete retraction of the strip from.

serving as a guide to direct the snap fastenthe slot. ers 7 into the holes 6 with a single move Signed by me at Springfield, Mass, this 'ment of the hand. tenth day of October, 1928.

It is to be understood-that the invention, STANLEY M. KENERSON. 15 while especially applicable to covers for dome 0 lights, as in the construction described, is likewise suitable for other equipment and whenever a cover is required which is subjected to more or less frequent removal.

may alsobe advantageously applied gener- 5 ally to covers which are snapped into and out of position and consist of fragile materials or parts necessitating careful handling.

- I claim! e 1., A wall lamp or the like comprising an 90 outlet box, a base plate extending across the outer side of said box and having an opening therein, a cover plate, means for attaching the cover plate to the base plate, and a member on the cover plate extending through 5 the opening in the base plate into the box and movable lengthwise through said opening to permit the cover plate to be moved away from the base plate, said member be- 7 1 ing adapted to engage the base plate against complete retraction.

2. A wall lamp or thelike comprising an outlet box, a base plate extending across the outer side of said box and having an openv 40 ing therein, a cover plate, means for attach- 10s ing the cover plate to the base plate, and a resilient member on the cover plate extending, through the opening in the base plate into the box and movable lengthwise through said opening to permit-the cover plate to be 1'10 moved away from the base plate, said member being adapted to engage the base plate against complete retraction.

3. A wall lamp or the like comprising an outlet box, a base plate extending across the Ill outer side of said box and having an opening therein, a cover plate, means for attaching the cover plate to the base plate and a resilient member on the cover plate extend- -5' ing through the opening in the base plate 120 into the box and movable lengthwise through said opening to permit the cover plate being swung away from the base plate, said memberbeing adapted snugly to fit said opening 0 and engage the base plate against complete retraction.

I 4. A wall lamp'comprising an outlet box adapted to be. set into a wall, a. base plate I extending across the outer side of said box and having a slot therein, a lamp socket on

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