US1235020A - Adjustable shade-holder. - Google Patents

Description

R. E. EWING.

ADJUSTABLE SHADE HOLDER.

APPLlCATlON FILED 1AN.2?, 1913.

1 ,235 ,02'0. Patented July 31, 1917.

WITNESSES fXZWa3M/ UNITED srnrns PATENT ROBERT E. EWING, OF AVALON, PENNSYLVANIA, ASSIGNOB. T0 PITTSBURGH LAMP, BRASS &; GLASS COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF NEW JERSEY.

ADJUSTABLE SHADE-HOLDER.

Specification of Letters Patent.

Application filed January 27, 1913. Serial No. 744,310.

To all whom it may concern Be it known that I, ROBERT E. EWING, of Avalon, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Adjustable Shade-Holders, of which the fol lowing is a specification.

The prime object of my invention is to provide a new and improved vertically adjustable shade holder for lighting fixtures, and more particularly a shade holder of the character mentioned especially applicable for use in connection with portable lamps.

A further object of the present lnvention is to provide a shade holder that may be attached to the lighting fixture during the manufacture of said fixture, and of such a character that it may be adjusted relatively to the fixture as to present a compact structure, thereby facilitating the packing and shipping of fixtures of this character.

In the accompanying drawing, which illustrates applications of my invention:

Figure l is a sectional view of a portable electric lighting fixture embodying my invention;

Fig. 2 is a plan of a form of means employed for securing the shade holder to the fixture;

Fig. 3 is a side elevational view of a portion of an oil lamp showing my invention applied thereto; and

Fig. 4: is a plan of the means for attaching the shade holder to the lamp fixture.

Referring to the drawing, and first to the form illustrated by Fig. 1, 1 designates the upper end of the fixture stem to which the lamp socket 2 is attached by means of a collar 3, the latter having an upwardly extending externally threaded portion 1 and an internally threaded depending portion 5. The depending portion 5 is adapted to fit over the threaded end of the stem, and the threaded portion 4 is designed to enter the lower end of the socket.

The adjustable shade holder, as shown by the form of Fig. 1, comprises a shade supporting or ring member 6 and a series of depending members comprising supporting rods 7 secured to the ring member by means of rivets 8. The shade holder is adapted for vertical adjustment and may be moved vertically from the position shown in full lines in Fig. l to the position shown in dotted lines, or to any intermediate position. By this construction, it will be evident that I have provided a shade holder that may be secured to the lighting fixture and adjusted relatively to said fixture so as to require very little, if any, additional space.

The means for securing the shade holder to the lighting fixture comprise a base ring member 9 having an inturned threaded flange 10, which flange is adapted to engage the threaded portion of the fixture stem. Secured to or formed integral with the base ring 9, and projecting outwardly and upwardly therefrom, is a series of apertured rod supporting arms 11, the apertures 12 thereof each being adapted to receive one of the depending members 7.

As will be seen by reference to Fig. 2, the

arms 11 are connected to the base ring 9 by means of segmental or curved portions 13 which form the inner ends of the arms, these portions 13 being riveted to the member 9 by rivets 14:. Other forms of connection, however, may be employed, and the arms may be of forms difi'erent from that shown. The rods 7 are adjustably held in position within the sockets by means of set screws 15. I

Fig. 3 illustrates my invention in connection with an oil lamp. In this latter construction, the shade holder supporting ring 9 is of considerably greater diameter than the ringof the form of Fig. 1, in order to permit it to be applied to the burner 16, and the flange 10 is omitted, otherwise the construction is similar to the form of Fig. 2. 11 12, 13 and 14 respectively designate parts corresponding with the parts 11, 12, 13 and 14: of the first described construction.

lVhat I claim is 1. In an adjustable shade holder, the combination of a shade ring, a base ring, radial arms each having a socket at its outer end and a segmental curved portion at its inner end connected to the base ring, and rods in the sockets connected to the shade ring.

2. In an adjustable shade holder, the com bination of a shade ring, a base ring, radial arms each having a socket at its outer end, fastening devices projecting through a wall of the socket, each arm having a segmental curved portion at its inner end secured to the outer wall of the base ring, rods connected to the shade ring and projecting through the sockets in the radial arms and adjacent to the fastening devices which engage them.

3. The combination with a lamp fixture stem, a lamp socket, a shade holder having a base ring provided with a flange, of means connecting the stem and socket together with the base ring flange seated on the stem, said means comprising a collar having an upwardly extending threaded portion, a

19 depending portion fitting over a threaded In testimony whereof I afii-X my signa- 15 ture in presence of two Witnesses.

ROBERT E. EWING. itnesses:

WV. G. DOOLITTLE F. E. GAITHER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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