US479247A - Lantern - Google Patents

Description

(No Model.)

D. w.- GRONIN.

LANTERN.

Patented July 19, 1892.

IN VE N TOR.'

/ TNE SSE S A TTOHNE YS.

UNITED STATES PATENT GEEICE.

DANIEL W. CRONIN, OF LlTTLE ROCK, ARKANSAS.

LANTERN.

SPECIFICATION forming part of Letters Patent No. 479,247, dated July 19, 1892.

Application led February 16, 1892. Serial No. 421,770. (No model.)

To @ZZ whom t may concern,.-

Be it known that l, DANIEL W. CRONIN, of Little Rock, in the county of Pulaski and State of Arkansas, have invented a new and usefullmprovement in Lanterns, of which the following is a full, clear, and exact descriptlon.

My invention relates to improvements in hand-lanterns which are provided with glass globes to protect the iame, and has for its object to provide such a device with a centraldraft and return iiues, which will increase the efciency of the lamp by increasing` its illuminating power and by rendering the combustion of the illuminant more perfect.

To these ends my invention consists in the peculiar construction of parts and their colnbination, as is hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in `which similar letters of reference indicate corresponding parts in all the iigures.

Figure l is a perspective view of the lantern. Fig. 2 is a side elevation in section'on the line 2 2 in Fig. 3, and Fig. 8 is a plan view in section on the line 3 3 in Fig. 2.

The oil chamber or fount A is preferably made cylindrical, having the usual iller-hole, capped, as at a, and at the base a depending flared liange b is secured, which has a series of perforations c formed in it at spaced intervals. The center of the fount A is occupied bya cylindrical draft-tube d, which penetrates the bottom e of the fount and projects vertically through it, extending a suitable distance above to pass through the externallythreaded collar fof the fount and also through the burner-shell.

The burner consists of an external shell g, which is cylindrical and contracted below, having the lower portion of suitable diameter and internally threaded, as at g', to screw upon and it the collar f, as indicated in Fig. 2.

The burner-shell g is formed with an inner tube g2, concentric with the outer wall and of such a diameter relatively to the air-draft tube d as will form an annular channel between said parts for the introduction and support of a cylindrical wick t', which may be vertically adj usted by any approved wickraising device. (Not shown.) There is a radial iiange m extended from the upper edge of. the burner-shell g outwardly, terminating in an upwardly-bent edge m', thereby producing a support for the glass lantern-globe B, which latter is of ordinary form and is contracted toward the upper end, which is cylindrical.

The upper end of the draft-tube d is proj ected a short distance above the concentric wall g2 and is closed by a flat cap-plate, the projected portion being numerously perforated at g3 to aord draft and air-escape at the point of combustion.

The flanged supporting-seat m is reticulated between the shell g and upright edge m to admit air within the globe at this point also.

The frame of the lantern is tubular, comprising two opposite hollow portions fn', which are integral with the horizontal draft-pipe n, from the ends of which they depend, and below are bent toward each other, so as to enter apertures oppositely formed in the shell g, which holes are surrounded externally of the burner-shell by the short sleeves n2, thereto affixed, into which the lower end portions n3 of the depending members n are entered and secured.

At the center of the horizontal draft-tube 'n an inlet is formed, from which a short cylindric neck 0 depends, terminating in a tlaring hood o', that is held above the upper end portion of the globe B, slightly removed therefrom to afford entrance for atmospheric air to the tubular frame for commingling with the gases.

A bail-handle C is loosely attached to the tubular frame of the lantern, as at p, for its convenient portage and manipulation.

In service atmospheric air enters at the base of the fount A, the perforations c permitting this if the lantern is seated upon a fiat surface, and passes upwardly through the draft-tube d and issues from the holes gand as the combustion of the lighted wick c', fed by oil in the fount A, will heat the top of the draft-tube the air is rareiied by contact with it, and in a heated and expanded condition issues directly above the point of combustion,

IOO

thereby supplying oxygen to the llame. After proper conditions are established in the lighted lantern the products of combustion will pass upwardly through the neck o into the pipe fn, and thence through its members n downwardly and into the burner-shell g, and the unconsumed carbon, mixing with air inducted through the holes in the gallery m, is drawn into contact with the name of the wick c', and thus completely consumed, thereby eecting economy in oil consumption and conducingto smokeless combustion within the globe B.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

As an improved article of manufacture, a central-draft lantern consisting in the annular reservoir A, having an apertured supporting-flange b, a central draft-tube cLclosed at its upper laterally-foraminated end, and a collar f, concentric with and of greater diameter than the tube, the shell g, secured upon said neck at g and having an upward extension g2, extending adjacent to the upper end of the tube d to form the wick-space, the opposite apertured globe-supporting flange or plate m on the upper end of the shell, and the tubular frame having inward-bent lower ends n3, connected with the opposite sides of the said shell, and the hood o within the upper end of the tubular frame, substantially as set forth.

DANIEL W. CRONIN.

Witnesses:

LOUIS S. STAHL, GEORGE H. BRANNING.

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