US473240A - Lamp-shade and holder for incandescent lamps - Google Patents

Description

(No Mddel G..F. SEAVEY. LAMP SHADE AND HOLDER POR-INGANDESUEN'T LAMPS.

No. 473,240. PatentedApr. 19 1892.

UNITED STATES PATENT OFFICE.

GEORGE F. SEAVEY, OF BOSTON, MASSACHUSETTS.

LAMP-SHADE AND HOLDER FOR IN CANDESCENT LAMPS.

SPECIFICATION forming part of Letters Patent N 0. 473,240, dated April 19, 1892.

Application filed August 6, 1891- Serial No. 401,860. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE F. SEAVEY, of Boston, county of Suffolk, State of Massachusetts, have invented anlmprovement in Lamp Shades and Holders for Incandescent Lamps, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.- I

The shade herein represented is especially adapted for use with incandescent lamps to be employed in horizontal positions, as in connection with and above billiard-tables, where a strong downwardly-directed light is required, which light must be shielded from the eyes, but yet the light is needed above the shade to expose the counters and light, if desired, the ends of the room or apartment.

My improved shade is concavo-convex in cross-section to nearly or partially inclose the incandescent-lamp bulb, the shade being cut away at its upper side to admit the upward reflection of the light, and, if desired, the shade may have end holes.

The novel holder to connect the shade, of whatever form or material, with the lampsocketis composed of wire bent to form springarms, substantially as will be described.

Figure 1 in elevation represents a lampshade and holder embodying my invention, the shade being partially broken away at the top to better exhibit the opening therein. Fig. 2 is a longitudinal section of the shade and its holder, the incandescent lamp and its socket being in elevation. Fig. 3 is a detail taken from the left in Fig. 1, showing part of the shade and the holder in place, the lamp being omitted; and Fig. 4 shows the holder detached. r

The shade shown, supposed to boot metal, consists, essentially, of a shell a and a neck a, provided with a hole, through which is extended the neck or bulb of the incandescent lamp L, which may be of any usual or suitable construction, it having, as represented, an annular projection, as b.

The shade shown is substantially scoopshaped or U-shaped in cross-section, the open mouth of the U being downward or next the surface to be 1lgllt6Cl.-Sll0l], for instance, as thebed of a billiard-table, desk, or other place.

The shade has at its upper side a slot a through which the light may shine upon the usual wire and counters suspended above the table, and the shade may have end openings (1 to throw light into the room about the end a base-rim, and several, preferably three, I

spring-arms, as 2 3 4, the said arms being shaped, substantiallyas represented in Fig.

2, to constitute recesses near the base of the holder, into which recesses enters the metal end piece a, bounding the hole cut therein for the passage of the lamp. Outside the shade and beyond the point where the shade and holder contact the said spring-arms have other reverse notches, which spring over and engage the annular ring or projection 1), forming part of the usual lamp-socket.

In this myinvention it will be noticed that the wire holder, which may be made very cheaply, may have its spring-arms pushed through the hole made in the neck of the shade, and that thereafter the lamp-socket may be pushed into place within the said spring-arms, as represented in Figs. 1 and 2, and'be held by the said arms, the expansion of the said spring-arms by the introduction between them of aportion of the lamp-socket also aiding in more firmly securing or confining the holder in the neck of the shade.

The holder, composed of wire, as stated, may be used to advantage with any form of shade and avoid the permanent attachment, as by solder, of the holder to the shade, and also avoid the turning over or flanging outwardly' of any portion of the holder, which practice has been common where the holder is made of sheet metal.

The shape of the shade in cross-section may be varied without departing from my invention. The term U-shaped substantially describes the shape of the shade in cross-section; but the U may be more or less broad at its open mouth and more or less curved or annular at its central portion.

It will be noticed that the base portions of the holder are not all in the arc of the same circle from one to the other spring-arm; but.

rather the 'wire portions between the springarms are in arcs of dilferent circles, such construction afiording great elasticity or spring to the arms.

Having described my invention, What I desire to secure by Letters Patent is- 1. A substantially U-shaped lam p-shade having a neck provided with a hole for the reception of a lamp and slotted longitudinally at or near the center of the U shape at its upper side to admit of the rays of light pass ing upwardly and of being reflected downwardly through the open side of the shade, substantially as described.

2. A substantially U-shaped lamp-shade having a neck provided with a hole for the reception of a lamp and slotted at or near the center of the U shape to admit of the rays of light passing upwardly and of being reflected downwardly through the open side of the shade and provided with end holes, as and for the purposes set forth.

3. The herein-described shade-holder, composed of wire and bent to form a base-rim and a series of independent spring-arms having oppositely-bent recesses, one to receive the neck of a shade and the other to embrace a portion of a lamp-socket, the wire portions between the spring-arms being in arcs of different circles to operate substantially as described.

4. A lam p-shade having its shell provided with openings for the transmission of light and having its neck provided with an openin g for the reception of an electric lamp, combined with an electric lamp, and a holder composed of wire and having spring-arms adapted to engage the lamp and the neck of the shade, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEO. F. SEAVEY.

Witnesses:

GEO. XV. GREGORY, FRANCES lVlAY NOBLE.

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