US2670430A - Lamp fixture - Google Patents

Description

O. LEONARD Feb. 23, 1954 LAMP FIXTURE Filed Jan. 27. 1951 form a iiange 29 which engages an inwardly turned ange 30 on the lower edge of the upper element 25.

The cross bar 22 is formed of a central disc 3l and radial arms 32 and 33 welded thereto as shown in Figure 4. The disc 3l has a central hole 34 which engages the stud l1 of the harp. The arms 32 and 33 project outwardly in alignment with the vertical plane of the vertical members of the harp l5, and are provided at their outer ends with depending eyes 35 and 35 through which a chain 31 is passed for raising and lower ing the telescoping unit 2l.

As shown in Figure l, the chain 3l has one free end attached to the upper end of the element 25 of the telescoping unit 2l as at 38. It runs upwardly and passes through the eye 35, thence downwardly to form a loop at which point a weight 39 is suitably attached. The chain then runs upwardly, back through the eye 35 and across and through the eye 35, then downwardly with its other free end attached as at i0 to the upper edge of the element 25 at a point opposite the point 38.

By pulling downwardly on the weight 33, the element 25 of the unit 2l is raised and in its passing from the position shown in Figure l to that shown in Figure 2, the elements ifi and 23 are successively picked up through engagement of their inwardly and outwardly turned flanges.

With the unit 2l in the position shown in Figure l, the light rays from the bulb it are not restricted, hence radiate a direct light. When, however, the unit 2l is positioned as is shown in Figure 2, the light rays are reflected upwardly so as to radiate an indirect light stream. It will be understood that with the correct heit to the weight 39, together with the resultant friction on the chain, the unit 2| may be stopped at will in any position intermediate of its two extremes, and whereby a variable combination of direct and indirect lighting is achieved.

In the modified form shown in Figure 5, a split collar 4l is secured to the bottom of the lower element 23 of the unit 2|. It fits around the neck of the socket i3 and is provided with a set screw 42 for securely locking the unit 2l to the socket I3.

My invention may readily be produced from materials the open market affords and at no great cost. Its working parts are very simple, compact and durable, `and the fixture proper may be produced in a variety of ornamental design. l\'l'ore over, it may be furnished as a component part of a lamp when sold, or separately for lamps already sold.

I am aware that the details of structure may from time to time admit of varied changes within the range of mechanical expediency, without departing, however, from the scope herein disclosed. Hence, I do not limit my invention to the precise structure herein shown and described. What I do claim, however, is:

1. A fixture for attachment to a lamp having an upright shade supporting harp embracing an electric bulb socket, comprising: a plurality of annular shell-like shield elements telescopically journaled to one another to form a vertically extensible and collapsible light shield adapted to surround said socket; the lowermost of said elements having a bottom wall formed with an opening to accommodate said harp and said socket; said bottom wall being adapted to rest upon a part of said socket; a ilexible member connected with the uppermost o said elements; and sup- Afl porting means for said flexible member adapted to be mounted on said harp above said elements; said iiexible member slidably supported by said supporting means and having an end portion depending therefrom and adapted to be manipulated for moving said flexible member relative to said supporting means to raise and lower those of the shield elements joined to said lowermost element.

2. A fixture for attachment to a lamp having an upright shade supporting harp embracing an electric bulb socket, comprising a plurality of annular shell-like shield elements telescopically journaled to one another to form a vertically extensible and collapsible light shield adapted to surround said socket; the lowermost of said elements having a bottom wall formed with an opening to accommodate said harp and said socket; said bottom Wall being adapted to rest upon a part of said socket; a iiexible member connected with the uppermost of said elements; supporting means for said flexible member adapted to be mounted on said harp above said elements; said flexible member slidably supported by said supporting means and having an end portion depending thereirom and adapted to be manipulated for moving said flexible member relative to said supporting means to raise and lower those of the shield elements joined to said lowermost element, and a counterweight carried by said end portion for holding said elements in vertically adjusted positions.

3. A xture for attachment to a lamp having an upright shade supporting harp embracing an electric bulb socket comprising a plurality of annular shell-like shield elements telescopically journaled to one another to form vertically extensible and collapsible light shield means adapted to surround said socket; the lowermost of said elements having a bottom wall formed with an opening to accommodate said harp and said socket; said bottom wall being adapted to rest upon a part of said socket; a flexible member connected with the uppermost of said elements; supporting means for said flexible member adapted to be mounted on said harp above said elements; said flexible member slidably supported by said supporting means and having an end portion depending therefrom and adapted to be manipulated for moving said ilexible member relative to said supporting means to raise and lower those of the shield elements joined to said lowermost element, and stop members projecting from said lowermost element for supporting the other of said elements in collapsible position. r

4. A xture for attachment to a lamp having an upright shade supporting harp embracing an electric bulb socket comprising: a 'plurality of annular shell-like shield elements telescopically journaled to one another to form vertically extensible and collapsible light shield means adapted to surround said socket; the lowermost of said elements having a bottom wall formed with an opening to accommodate said harp and said socket; said bottom wall being Vadapted to rest upon a part of said socket; a flexible member connected at its endsto the uppermost of said elements; and supporting means Afor said flexible member adapted to be mounted on said harp above said-elements; said flexiblemember being movable relative to said supporting means and terminating in a loop depending therefrom for manipulation to raise and lower those of said elements joined to saidI lowermost elementx.

5. A fixture for attachment to a lamp having an upright shade supporting harp embracing an electric bulb socket comprising: a plurality of annular shell-like shield elements telescopically journaled to one another to form vertically extensible and collapsible light shield means adapted to surround said socket; the lowermost of said elements having a bottom wall formed with an opening to accommodate said harp and said socket; said bottom Wall being adapted to rest upon a part of said socket; a flexible member connected at its ends to the uppermost of said elements; and supporting means for said flexible member adapted to be mounted on said harp above said elements; said flexible member being movable relative to said supporting means and terminating in a loop depending therefrom for manipulation to raise and lower those of said elements joined to said lowermost element, and a counterweight carried by said loop.

OLIVER LEONARD.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 1,447,500 Ainsworth Mar. 6, 1923 2,087,750 Bookman July 20, 1937 2,270,497 Berger Jan. 20, 1942 2,543,097 Drefke Feb. 27, 1951 FOREIGN PATENTS Number Country Date 516,982v Great Britain Jan. 17, 1940

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