US33945A

US33945A - Improvement in lamps

Info

Publication number: US33945A
Authority: US
Publication date: 1861-12-17
Anticipated expiration: 1878-12-17

Description

UNITED STATES PATENT OFFICE.

DANIEL HUGHES, OF ROCHESTER, NEVV YORK.

IMPROVEMENT IN LAMPS..

To all whom it may concern:

Be it known that I, DANIEL HUGHES of the city of Rochester, in the County of i onroe and State of New York, have invented a certain new and useful Improvement in Lamps; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings', and to the letters and marks thereon, which drawings form part of this Specification and show my invention applied to a lamp for burning kerosene or coal oil.

Of the drawings, Figure 1 is a front View or elevation of a lamp having my improvev-ment; Fig. 2, a view also an elevation, the

globe-shade and Conduetor having been revInoved; and Fig. 3 is a view by vertical section showing the air-spaces.

It has been found to be almost impossible to so construct a lamp for the use of coal-oil that a bright and large flaine could be o'btained without the lampis smoking.v In the efforts to correct this evil ,very generally inventors have resorted to such construction of the lamp as would allow of very free and full circulation of air, using as a. part of the" meansthe straight or elevated chininey-glass. A rapid circulation of air about the fiame necessarily produces rapid Consumption of tlie oil or burning-fiuid, and lessens the economy of the 1amp,,while the Chimney-glass is very liable to be broken,particular1yin handlamps.

Now, while my .invention has for its object the full supplying of air to the flame and the use of a shade, it provides for a checked or Controlled Circulation of air, and thus the oil is used economically and a bright and full fiame obtained.

In Carrying out my invention I use, as is shown by the drawings, a lamp the upper portion or body of which is a section of a cone.

Around this Cone-shaped partIplace, usually,

wire-gauze or may have small perforations,l and upon the top part of the conductor is placed the globe-shade D. The perforations or gauzed holes in the lower part of the Conductor will allow of the passag'e of an ample supply of air, but willprevent its'passing inv too rapidly or in too large a current. The air thus passed in wilL become somewhat retard ed and Compressed in the air-Chamber 4above named, Where it will also become heated, and while it will fully supply the fiame it will not produce that rapid movement which would oCCur if the track or Channel for'the air was regular and uniform throughout. By using the globe-glass in Connection with such air- Chamber' and air-inlet aid is given to the Chamber inl the performance of its functions, the flame is protected, and a shade is used which is neither liable to be easily broken nor by its height to increase the velocity of theV passage of the air by the flame.

What I claim as new, and des-ire to secure- DANIEL HUGHES, Witnesses:

JOHN PLIM, W. S. THoMPsoN.