US2124141A

US2124141A - Lighting fixture

Info

Publication number: US2124141A
Application number: US107538A
Authority: US
Inventors: Otto G Hildebrand
Original assignee: RAILLEY CORP
Current assignee: RAILLEY Corp
Priority date: 1936-10-26
Filing date: 1936-10-26
Publication date: 1938-07-19
Anticipated expiration: 1955-07-19

Description

July 19, 1938- o. e; HILDEBRAND LIGHTING FIXTURE Filed Oct. 26, 1936 INVENTOR.

M/ @n-w/r M ATTORNEY.

patented July 19, 1938 UNITED STATES PATENT OFFliIE LIGHTING FIXTURE Application October 26, 1936, Serial No. 107,538

1 Claim.

This invention relates to an electric lamp which is so constructed that it is adapted to be hung upon a wall or to rest upon a flat surface such as a table Or desk.

One of the objects of the invention is to provide a lamp which is so constructed that it may be supported either upon a wall or upon a flat surface and which is provided with means whereby the upper end of the lamp may be swung upon an axis to permit the lamp to be used either as a wall lamp or a table lamp.

Another object of the invention is to provide a lamp of the character described which consists essentially of a base member from which extends an arm which is disposed at an angle to the base member and made up of a pair of sections connected together by a joint whereby the lamp may be used as a wall lamp or a table lamp with a minimum adjustment of parts.

Another object of the invention is to provide a lamp of the character described which consists of comparatively few parts which are well adapted for production at comparatively low cost.

Further and more limited objects of the invention will appear as the description proceeds and by reference to the accompanying drawing in which Fig. 1 is a view in side elevation of the lamp supported on a wall; Fig. 2 is a similar view of the lamp supported on a fiat surface; Fig. 3 is an enlarged sectional view through the joint; Fig. 4 is a detail View of the adjacent end of the arms showing the lugs for limiting the movement of the arms; and Fig. 5 is a sectional View on the line 55 of Fig. 3.

Referring now to the drawing, the lamp consists essentially of a base member l which is provided with a somewhat spherical portion 2, from which extends a tubular member 3 which is secured in place by a suitable clamping nut 4. Secured over the opposite end of the member 3 is an exteriorly threaded sleeve 5 which is held in place by a clamping nut 6 which engages an enlarged portion 1 provided on the tubular member 3. Fitting into the sleeve 5 is a second tubular F arm 8 which is held in place by means of a clamping nut 9 which engages an enlarged portion I provided on the arm 8. Enclosing the joint between the

arms

3 and 8 is a spherical casing II which is made up of two parts 12 and I3 which telescopically engage each other and are held in place by the clamping nuts 6 and 9. Secured to the opposite end of the arm 8 is a lamp socket M which is adapted to receive an electric light bulb therein and which is adapted to support a lamp shade 16. The end of the tubular member 3 is provided with a lug or projection I! and the adjacent end of the tubular arm 8 is provided with a lug or projection l8 which engages the projection I? and serves to limit the movement of the arm 8 in either direction. A suitable electric cable 20 extends through the arms as shown and connects with the lamp socket.

The lamp is adapted to be supported upon a wall by means of a suitable hook it or to be supported upon a fiat surface as shown in Fig.

2. The spherical casing l I, in addition to enclosing the joint between the two arms serves as a convenient means for gripping the lamp and moving it from one position to another. The arm 8 fits tightly within the sleeve 5 so that it is frictionally held in the adjusted position. It will be seen that the outer end of the arm 3 is dis- 15 posed at an angle of 45 degrees with respect to the base member and that the outer arm 8 is movable through an angle of 180 degrees so that the lamp may be positioned in a vertical plane whether it be hung upon a wall or supported upon a flat surface. The

arms

3 and 8 are each bent at the same angle so that the lamp will be properly positioned and stand in a vertical plane whether it be supported on a wall or in a horizontal position.

It will now be clear that I have provided a lamp which will accomplish the objects of the invention as hereinbefore stated. It is of course to be understood that the embodiment of the invention herein disclosed is merely illustrative and is not to be considered in a limiting sense as vari- 0 ous changes may be made in the details of construction without departing from the spirit of my invention. The invention is therefore limited only in accordance with the scope of the appended claim.

Having thus described my invention, what I claim is:

In a lamp consisting of a base member adapted to be supported upon a wall or to rest upon a flat surface and having an inner arm extending outwardly therefrom and an outer arm rotatably secured to said inner arm and extending at an angle thereto, a joint between said arms including a sleeve surrounding the adjacent ends of said arms, a casing enclosing said joint and comprising a pair of separable sections carried by said sleeve, means carried by said sleeve and engaging said detachable sections for securing the same in place, cooperating means on the adjacent ends of said arms for limiting the rotary movement thereof with respect to each other, said arms having frictional engagement with said sleeve for automatically holding said arms in the adjusted position.

OTTO G. HILDEBRAND.