US87428A

US87428A - Improvement in lamp-shades

Info

Publication number: US87428A
Authority: US
Publication date: 1869-03-02
Anticipated expiration: 1886-03-02

Description

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JOHN F. .PHELP lOF HAVANA, NE W YORK.

l Letters Patent No. 87,428, dated March 2, 1869.

mPRovEMENT 1N Len/memes.

The Schedule referred to in these Letters Patent and making part of the sam.

enable others skilled in the art `to make and use the same, reference being had to the accompanying drawings, forming paltof this specification.

This invention 4relates to. improvements in lamp shades, the object of which is to adapt them to be used with eqal facility upon lamps, either with chimneys or without, and to provide a detz'ichablevertical extension for the same.

Figure l represents a sectional elevation of. a part of a lamp and chimney with my improved. shade ap! plied thereto. Figure 2 .represents a sectional elevation of the same, with. a detachable vertical extension, and applied to a lamp without a chimney.

Similar letters of reference indicate corresponding parts.

A represents. the bogly of the shade, made `in the usual form, and preferably of sheet-metal. It is provided with a short tubular extension, B, atr the top, to which the supporting-spring wires O are secured.

v.These wires are intended to be of the propel-length to rest on the rim D, which supportsthe chimney, and support the shade at the 'proper height. They have a tendency to spring inward, sucient to insure their contact with the `baseof the chimney, and the projectb ing edge of the rim D,fno matter what size they may be. Theydo not, however, spring so close together,

that, when detached from the chimney, the small ends thereof will be prevented from entering the space between 4them when the shade is to be applied.

This construction adapts the shade for application to such lamps as are used without chimneys, as repre. sented in fig.v 2.

The ends of the spring-supports O are separated, and pass b y the projecting rim E, of the burner, but spring snugly against it, and rest, at their lower ends, upon the upper portion of the lamp.

The saidprojecting rim E aiordsia reliable lateral support to the springs 0,'and the shade is thereby sustained in the absence of a chimney for its support.

To prevent any rattling vof' the shade against the chimneys, when employed with them, I continue the spring-supports above the point of connection ywith the vertical projection B, and arrange them to spring against the chimney, as represented at F.

It is desirable that these shades may be made as small as possible, as an economy 'of construct-ion, and to save burdening the lamp with too much weight, especially when employed on lamps without chimneys; and when made small, it is sometimes desirable to attach an additional tube, G, to-the top thereof, to extend their capacity. f

The said tubular extension` is so constructed as to be readily attached -and removed, as is clearly represented. 1

Having thus described my invention,

I claim as new, and desire to secure by Letters Patent- 1. The combination, with the shade A B, of the spring-supports O, when arranged asspeciiied.

2. The combination, with the part A B, of the detachable tubular extension G, substantially as specified. The above specification of my invention signed by me, this 18th day of November, 1868.

Witnesses: JOHN F, PHELPS.

FRANK BLOGKLEY, ALEX. F. ROBERTS.