US481378A

US481378A - Sylvania

Info

Publication number: US481378A
Authority: US
Publication date: 1892-08-23
Anticipated expiration: 1909-08-23

Description

(No Model.) L. T. STANLEY.

REPLEGTING SHADE FOR INGANDBSOBNT LAMPS. No. 481,378. Patented Aug. 23, 1892.

UNITED STATES PATENT OEEicE.

LUOIUS T. STANLEY, OF BROOKLYN, NEW YORK, ASSIGNOR TO THE CUTTER ELECTRICAL AND MANUFACTURING COMPANY, OF PHILADELPHIA, PENN- SYLVANIA.

REFLECTING-SH ADE FOR INCANDESCENT LAMPS.

SPECIFIGATION forming part of Letters Patent No. 481,378, dated August 23, 1892. Application filed February 29, 1892- Serial No. 3, (N ClB To all whom it may concern: these springs are provided with catches or Be it known that I, LUCIUS T. STANLEY, a some means for engaging with and retaincitizen of the United States, and a resident of ing in position the glass saucer or plate E. Brooklyn, in the county of Kings and State of These catches may be formed by simply bend- 5 New York, have invented certain new and usein g round the wires in substantially the man- 5 5 ful Improvements in Reflecting-Shades for nor indicated or by any other means. Incandescent Lamps, of which the following In applying the plate E its edges are inis a specification, reference being bad to the serted in two of the seats or notches provided drawing accompanying and forming a part of by the shape of the springs above the rounded I0 the same. ends, and the third spring is distended below This invention is an improvement in the the plate until it also is caused to engage With reflecting-shades for incandescent electric its edge. The tension of these springs hold lamps heretofore made by me and of which the plate up firmly against the inner flaring the general characteristics are the following: surface of the shade.

I5 I fashion in any suitable manner, but prefer- Between the edges of the glass plate and ably by spinning up from aluminum, a shadethe inner surface of the shade is left an anreflector the upper portion of which is paranular space, equal in width to the thickness bolic in cross-section and the lower part coniof the wires, which secures a more perfect cal. The opening in the top of this shade is ventilation of the interior of the shade than 20 provided with special means for securing it has heretofore been possible. 7 to the neck of alamp or to the socket in which I do not claim herein the special form of the lamp is fixed; but the character of the shade which I have shown and described, as fastening device, so far as the present inventhis feature forms the subject of another tion is concerned, is immaterial. The shade, application filed by meto wit, Serial No.

25 furthermore, is closed at the bottom by an 409,561, filed October 17, 1891.

opalescent or ground glass diffusion-plate, What I claim iswhich heretofore I have secured by cars 1. In a reflecting-shade, the combination, punched out from the conical portion of the with the metallic or reflecting portion inclosshade or in other similar ways. ing the lamp, of spiral springs, one end of each 3 My present improvements consist, first, in being secured to the inner surface of the rea novel device for securing the glass plate on flector and provided at theirends with catches, the enlarged opening in the bottom of the reand a glass plate over the opening of the reflector, and, second, in providing for the betflector and held in position by engagement ter ventilation of the interior of the same. therewith of the springs, as set forth.

35 The improvements are illustrated in the ac- 2. The combination, with the reflecting companying drawing, which is a central vershade having an upper portion parabolic and tical section of the reflecting-shade. a lower portion conical in cross-section, of spi- The main body of the shade is preferably ral springs secured at one end to the inner composed of aluminum, which is spun up by surface of the reflector and having their free 4 the usualprocess and has two distinctive parts ends bent to form lugs or engaging-catches, or portions, the upper part A parabolic in and a glass plate held up against the inner cross-section and the lower part B conical surface of the conical part by engagement in cross-section. The lower or flaring edge therewith of the springs and so that an annuis turned up and over in order to give it lar space will be left between the edge of the 45 an ornamental appearance and increase the glass plate and the inner surface of the restrength. flector, as set forth.

To the inner surface of the shade, and pref- LUCIUS T. STANLEY. erably to the conical part, are secured spiral Witnesses: springs O by means of rivets D or other con- PARKER WV. PAGE,

5 Venient devices. The lower or free ends of M. G. TRACY.