US86825A - Improvement in lamp-shades - Google Patents

Description

l DIMOND 6L DOOLITTLEl A Lamp Shade.

1 No. 86,825. A Patented Feb. 9, 1869.

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GEORG H. DlldOND'AND GEORGE DOOLIT'ILE CONNECTICUT.

Lette/rs Patent No. 86,825,1dated February 9, 1869. g

.IMPRovsMnNT 1N LAMP-sHADEs.

The schedulerelferred'to in these Letters Patent and maknghpart of the sa'me.

To all whom 'it may concern Be it known that we, GEORGE H. DrMoND and GEORGE DooLIcr'rLE, of Bridgeport, Fairfield county, in the State of Connecticut, have invented certain new and useful Improvements in Lamp-Shades and we do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this application.

y, Our invention relates-more particularly to that kind of shade which is formed of thin corrugated ymetal, such as shown and described in Letters Patent, granted to J. B. Doolittle, on the 10th day of "March, 1868, though some of the features of our inyention are applicable to other kinds of shades.

A shade made of very thin corrugated or crimped sheet-metal, such as 'shown in the Doolittle patent, in order to be utilized for the purposes of a gas-shade, or -to be supported othen'wise than by resting on a lampchimney, as=shown in the said patent, requires to be made stiffer or more rigdvat either the top or bottom edge, as the arms orl supporting-wires are attached to either of said edges; and inasmuch as it is decidedly better to attach the said arms to the 'top edge of the shade, and leave the lower portion and whole radiating or reflecting-surface unobstructed, we have devised a means for eeeting this desirable end in an eiiicient and economic manner. p

And this feature of our invention consists in the employment, in connection with the top edge of a shade, Y

.made of thin corrugated metal, of an annular'metallic collar, of a proper shape, in cross-section, to present suicient rigidity, and having the supporting-arms or wires attached to' it, in the manner hereinafter more fully explained.

.Previous to our Vinvention it had been customary to make p'aper and other shades, adapted to be used on gas-ixtures, with a metallic holder or thimble, generally of cast brass, to which vthe supporting-wire has been fastened, radiating from it, and which holder has been designed to fit on to or around the ordinary gasburner; but it has been found, by experience, that as 1 gas-burners are of various sizes and shapes, a person having purchased a shade, would, as likely as not, iind that the holder did not tthe burner on which it has to be used, and that consequently theshade would not rest centrally over the burner, and the holder not titting or clasping the burner closely enough, the shade would bein constant danger of being overturned by the slightest touch; and shades being-most frequently used on drop-,lights and table-lights, have been subject always to being knocked or touched. Thishas proven a great inconveniencegin the use pf and objection to the use of shades, as heretofore manufactnred, particularly with papenshades, which, if displaced, would catch on fire.

To overcome these diicnlties and objections, and

provide a means by which the holder, or thimble of any shade may be securely and conveniently clasped on to any burner, are the objects of the second part of our'invention, which consists in avariable holder, or thimble, so made, of sheetfmetal, that it can be fitted and adapted to any-size burner, as will be hereinafter more fully described.

lo enable those skilled in the art to make and use our invention, We will proceed to describe more particularly, referring by letters to the accompanying drawings, in which- Y Figure 1 is a' sectional elevation of a corrugated or crimped metallic shade, with our invention applied to it.

Figure 2 is a top View of the same.

Figure 3, a detail view of a modification of our improved holder detached.

In tgs. 1 and 2, A is the shade, which is made of very thin sheet-metal, crimped or corrugated, after the fashion shown in the Doolittle patent, before referred to. Into the top of this shade, or reector, A,we spring an annular collar, B, of metal, made as shown, so as to be rigid or stiff, diametu'cally, and at the same time very light and economical.

This collar may be struck or spun up, and may have its' top edge made with points, or in any tasty shape.

It is perforated at equal distances with holes, or eyes, Y

through which are passed the upper ends of the supporting-wires, vor arms, C.

These wire ends are bent over, sopas to confine the' lower edge of the rim, or collar, B, as seen at j, jig'. 1, and be securely coupled thereto without any soldering, and they are connected at their lower ends to the collar c, of the holder g, by passing them through holes in said collar, having their extremities .slightly upset' or riveted, as seen at fig. 1.

rlhe holder or thimble g is lmade of sheet-metal, and

is formed with lips 1, 2, 3, &c., at the upper portion, above c'ollar e, and with leaves, 5, 6, &c., below, and is adapted to slip'on to a gas-burner, as shown by red lines at fig. l.

By having the holder q thus made, the lips at top, and the leaves at the bottom, the two portions which are designed to clasp or surround, and hold onto the burner, may be bent inward or outward to vary the size, and adapt the holder to it tight on any `size and shape of burner.

At g. 3 we have shown a modicationof this part of our invention, the holder g, in this case, having its` collar, e, at the extreme bottom, and being formed with turned-n portions, or lipsps, in lieu of the bottom leaves, seen at fig. l, whichmay be bent in or out more'or less, and which are adapted to rest against the outer portion of the burner, in a manner similar to the leaves 5,6, Ste.

'It will be obvious to the mechanic and manufacturer, that the 'details or methods of carrying out the several features-of our invention may be varied from or BRIDGEPor-rr, f

` what we have shown, without departing from the spirit of our invention.

Having explained tue several features of our iinprovernents in lamp and gas-burner shades,

What We claim as uew,-aud desire to secure vby Letters Patent, is-

1. A lamp-shade, composed of a flexible metallic portion, A, rigid annular top rim B, and supporting- Wires C, when the wires are iuterloc-ked with the rim B, in the peculiar manner shown, and the portion A 4vsprung over their protruding ends, substantially as hereinbefore described.

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