US2321288A - Lamp shade - Google Patents

Description

June 8, 1943.

I H. FINKEL 2,321,288

LAMP SHADE Filed Sept. 24, 1942 INVENTOR W Aka/re) 54 4 54 wim.

Patented June 8, 1943 UNITED STATES FATE GFFICE LAMP SHADE Harry Finkel, New York, N. Y. 7

Application September 24, 1942, Serial No. 459,593

1 Claim.

The invention herein disclosed relates to the structure and to the manufacture of lamp shades.

Objects of the invention are to provide a lamp shade of light inexpensive practical construction and consisting of but few simple parts, easily assembled and which when put together have the effect of reinforcing each other and thus producing a lasting and durable structure.

A further special object is to make possible the elimination of the wire frame heretofore considered essential as a base or foundation for many lamp shades.

Other objects of the invention, as well as the novel features of the invention by which purposes of the invention are attained, will appear or are particularly set forth in the following specification.

The drawing accompanying and forming part of the specification illustrates one of the present practical embodiments of the invention and the novel method of assembly. Structure and other details however, may be modified and changed as regards the instant disclosure, all within the true intent and broad scope of the invention as hereinafter set forth and claimed.

Fig. 1 is a view showing the parts, in the order of their assembly, certain of these appearing in section.

Fig. 2 is a cross-sectional view of the completed shade.

Fig. 3 is a plan view on a reduced scale of the fiat circular blank, which after being shaped forms the body of the shade.

Fig. 4 is an enlarged broken sectional detail showing how the shade body is held in shape by being fastened by split rivets to a wire ring.

The body of the shade is made up of a flat circular blank 5, Fig. 3, of paper, parchment, fabric or other material, which in cutting it, or stamping it to this circular shape, is made with a central opening 6, and with tapered radial fingers I, surrounding and projecting toward that opening.

Any ornamental attachments, such as edge ruching 8, may be applied while the blank is in this flat condition.

By means of companion dies, the flat circular blank is molded to the convolute conical form illustrated in Fig. l, and to hold it permanently in this scalloped formation, the inwardly extended flutes of the same are attached to a more or less rigid ring 9, of wire or the like.

Such attachment is effected in the illustration by split rivets ID, driven in through the ruching 8, so as to be more or less concealed and having their split ends wrapped in reverse directions about the wire or other ring, substantially as indicated at I I.

In the die which shapes the fiat blank to the convolute conical form, or in a preliminary shaping die the radially cut tapered fingers I, are bent or set to the substantially cylindrical formation shown in Fig. 1.

A spring clamp is provided for mounting the shade on the lamp and this is shown as made up of coiled or looped spring wires I2, having stem or neck portions I3, constricted by a small ring or washer I4, and attached at their ends to a split or open ring I5. The opening or space between the separated ends of this last mentioned ring is indicated at I6, in Fig. 2, and the purpose is to make this ring adjustable in diameter and somewhat springy in character, so as to fit within a mounting sleeve or collar.

The collar referred to is designated I1, and is shown in Fig. 1 as having an inturned bead or flange I8, which will form an abutment and stop for the spring ring I5.

To constitute the mounting collar an ornamental part of the shade, rows of ruching may be stitched about the collar, substantially as at I9, Figs. 1 and 2.

The collar I'I, may be made of paper or cardboard and the bead or fiange I8, be provided by turning or rolling in the end of the tubing from which the collar is formed. This end flange in addition to providing a stop, stiffens and reinforces the paper or cardboard collar and enables it to securely hold the lamp engaging spring clamp.

The split ring I5, may be sprung open or closed up more or less to make it fit with the desired closeness within the mounting collar and after these two parts are so engaged, with the ring I5, backed against the end flange or bead I8, the cylindrically arranged fingers I, of the shade body are inserted within collar II, Fig. 2, after which a smaller ring or collar 2!], is forced into place over such fingers and up against the spring ring I5. While the frictional and spring engagement of these parts may be sufficient, usually a small amount of glue or other adhesive is applied before the parts are thus put together.

The smaller clamping collar 20, is shown as having a bead 2I, at the lower or outer end stiffening and reinforcing it so that it will securely hold the fingers of the shade material expanded outwardly against the outer collar H.

The several parts are inexpensive, they are easily assembled and when put together they an inner collar of smaller diameter than said first collar, said second collar being entered in said open end of the first collar over said projecting fingers of the shade body and into engagement with said ring portion and thereby confining said ring portion against said inwardly projectingfiange of said first mentioned collar.

HARRY FINKEL.

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