US1801991A

US1801991A - Electric-lamp shade

Info

Publication number: US1801991A
Application number: US343907A
Authority: US
Inventors: Lauritz W Andersen
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-03-02
Filing date: 1929-03-02
Publication date: 1931-04-21
Anticipated expiration: 1948-04-21

Description

April 21, 1931- L. w. ANDERSEN 1,801,991

ELECTRIC LAMP SHADE Filed March 2, 1929 11 10 INVENTOR Zaurz'fz W Andersen Patented Apr. 21, 1931 antral STATES PATENT. orrics LAURITZ W. ANDERSEN, OF WATERBURY, CONNECTICI TT ELEGTRICrLAMP SHADE Application filed March 2,

This invention relates to electric lamp fixtures, and more particularly to a shade support having depending clamps for resiliently embracing the sockets of a twin-lamp fixture to permit the shade to be readily rotated around the axis of said fixture.

One object of this invention is to provide a shade support of the above nature which will be simple in construction, inexpensive to manufacture, easy to install and manipulate, compact, ornamental in appearance, and very efl'icient and durable in use.

With these and other objects in view there has been illustrated on the accompanying drawings one form in which the invention may be conveniently embodied in practice.

Fig. 1 represents a perspective view, in separated relation, of a shade holder and a twin-lamp fixture upon which the holder is mounted.

Fig. 2 is a side view of the same showing the lamp shade in cross-section.

Referring now to the drawings in which like reference numerals denote corresponding parts throughout the several views, the numeral 10 indicates a hollow supporting base having a two-wire electric conductor cord 11 extending through one side thereof for supplying current to a pair of

lamps

12 and 13 located in a-pair of threaded

sockets

14 and 15 extending longitudinally from the body portion 16 of a twin-lamp fixture. The body portion 16 has a horizontal tube 17 extending therefrom, and said tube 17 is joined by a swiveled connection 18 to a vertical tube 19 mounted on said base 10. i

The cord 11 passes up through the base 10, the vertical tube 19, and then laterally through the horizontal tube 17 into the body portion 16 of the twin-lamp fixture where it is connected by the usual binding posts, not shown, to the central and shell contact terminals 19a and 19b of the

sockets

14 and 15. The body portion 16 is provided in its lower section with the usual switch-operating pull chain 20.

The shade support is preferably made from fiat sheet metal by blanking and bending into the form shown in Fig. 1 and comprises a flat upper base member 21 having an upwardly 1929. serial No. 343,907.

extending threaded bolt 22 adapted to pass through an opening in the top of a lamp shade 23 of any-desired ornamental configuration. The shank of said bolt forms a post and is adapted to receive an ornamental nut 24 for locking the shade upon a washer 24a. The shade 23 has avertical rear edge provided with a slot 25 adapted to embrace the horizontal arm 17 of the lamp support. The base member 21 of the shade support is also provided with a pair of oppositely disposed

vertical side pins

26 and 27 adapted to pass'through a pair of correspondingly located apertures in the shade 23 whereby said shade will be held at all times in alinement with the longitudinal axis of the two-lamp fixture.

In order to detachably and movably clamp the shade support to the

sockets

14 and 15 of the twin-lamp fixture, the base member 21 has two pairs of longitudinally

inclined parallelarms

28, 29, 30,-and' 31 bent downwardly therefrom, the ends of said arms having outwardly convex gripping

sections

32, 33, 34, and 35 adapted to fit aroundthe

cylindrical sockets

14 and 15. The lower extremities of the

gripping sections

32, 33, 34, and

35 are bent outwardly at 36, 37, 38, and 39 so as to facilitate the application of the shade holder to the

sockets

14 and 15 and its removal therefrom. This construction also prevents the possibility of scratching the surface of the lamp socket.

In operation, in assembling the device, the shade 23 will first be placed upon its support with the bolt 22 and

pins

26 and 27 extending up through the corresponding apertures in the shade. The nut 24 will then be manually screwed down upon the top of the shade for holding it rigidly against the washer 24a.

The operator will then place the shade hold er above the twin-lamp fixture in the position shown in Fig. 1 and will move it in a clownward direction untiltheconvex resilient gripping

arms

32, 33, 34, and 35 are caused-to spread apart by the sockets 14 a11d-15, and

it will only be necessary to grasp the shade and rotate it in the direction desired, the

gripping arms

32, 33, 3a and 35 being thus caused to slip over the surface of the

sockets

14 and 15.

One advantage of the present invention is that the shade attaching means is concealed within the shade and has not unsightly arms or brackets on the exterior thereof.

While there has been disclosed in this specification one form in which the invention may be embodied, it is to be understood that this form is shown for the purpose of illustration only, and that the invention is not to be limited to the specific disclosure but may be modified and embodied in various other forms without departing from its spirit. In short, the invention includes all the modifications and embodiments coming within the scope of the following claims.

Having thus fuily described the invention, what is claimec. as new, and for which it is desired to secure Letters Patent, is

1. In an electric lamp fixture ior attachment upon a horizontal supporting member, a twin socket lamp supported by said member, a shade having a rear vertical slot embracing said supporting member, a shade holder having spaced clamps for rotatably engaging the opposed sockets of said twin socket lamp, said slot permitting angular adjustment of said shade about said sockets, and means for detachably securing said shade upon said shade holder.

2. In an electric lamp fixture for attachment upon a horizontal supporting member, a twin socket lamp supported by said member a shade having a rear slot embracing said supporting member, a shade holder having spaced clamps :t'or rotatably engaging the opposed sockets of said twin socket lamp, said slot permitting angular adjustment of said shade about said socket-s, means for detachably securing said shade upon said shade holder, and means for holding said shade in alinement with said shade holder.

3. In an electric lamp fixture, a shade, a twin socket lamp, a shade holder having two pairs of depending resilientjaws for rotatably clamping upon the opposed sockets of said twin socket lamp, said shade holder having athreaded post adapted to extend up through said shade, a nut on said post for securing said shade to said shade holder, and a lateral alining pin projecting from said holderand extending through said shade.

4. In an electric lamp fixture, a shade, atwin socket lamp, a shade holder having two pairs of depending resilient jaws for rotatably clamping upon the opposed sockets of said twin socket lamp, said shade holder having a threaded post adapted to extend up through said shade, a nut on said post or securing said shade to said shade holder, and a pair of upwardly extending pins 10-