US588379A - bellamy - Google Patents

Description

(No ModeL) 3 Sheets-Sheet 1.

' O. R. BELLAMY.

STREET GAS LAMP. I No. 588,879. Patented Au 17,1897.

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No. 588,379. Patented Aug. 17,1897.

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C. RJBELLAMY.

STREET GAS LAMP. No. 588,379. FIG-ill Patented Aug. 17,1897.

. "Z Ra a xfmm 2 My W UNITED STATES PATENT OFFICE.

CHARLES REVILL BELLAMY, OF LIVERPOOL, ENGLAND.

STREET GAS-LAM P.

SPECIFICATION forming part of Letters Patent No. 588,379, dated August 17, 1897.

Application filed January 7, 1897- Serial No. 618,288. (No model.)

Lamps, of which the following is a specifica-.

tion.

This invention relates to street gas-lamps,

and more particularly to that class of lamps provided with burners which require chimneys-such, for example, as Argand burners and incandescent burners.

The invention is specially applicable to lamps provided with the last-mentioned type of burner, and I. will therefore describe my invention with reference to such lamps, although it will be seen that it is equally applicable to all lamps whose burners require chimneys.

Street-lamps fitted with incandescent burners are at present lighted either by the use of a small flash-light kept continuously burning or by hand through a side door which must be opened forthe purpose. Both methods are objectionable. The use of a flash-light kept continuously burning necessarily involves considerable expenditure of gas, and in the case where a side door is opened there is great risk of injury to the glass chimneys and mantles, especially during windy weather. The object of my invention is to overcome these difficulties by providing a lamp adapted to be lighted from above.

According to my present invention I construct such lamp as follows, reference being made to the accompanying drawings, in which- Figure I is an elevation of the lamp, and

Figs. II, III, and IV are fragmentary detail views to a larger scale,Fig. II being a sectional elevation of the upper part of the lamp on the plane A A of Fig. I, Fig. III being a similar sectional elevation on a plane at right angles to the latter, and Fig. IV being a sectional plan on the plane B B of Fig. III.

Throughout the drawings the same parts are indicated by the same reference-figures. The lower portion 1 of the lamp, which may be of any. suitable shape, is absolutely closed in when the lamp is burning. It is of course provided with a door for cleaning, repair, &c.

but I prefer to have the door locked when the lamp is in use.

lamp through a number of holes 4, pierced in the bottom 5 of the chamber 2, being deflected toward the sides of the lamp by the deflector 6.

Above the air-inlet chamber 2 is a chamber 7, which I shall refer to as the lighting-box. This boX communicates with the interiors of the glass chimneys 8 of-the burners by means of the metal chimneys 9, which pass down through the chamber 2 and the deflector 6 and form prolongations of the glass chimneys. Access is given to the lighting-box by the doors 10, which preferably open inward and are hinged, as shown, at their lower sides, each being provided with a spring to keep it normally closed.

It will be seen that the air for combustion enters through the air-inlet chamber, as indicated by the arrows, is deflected to the sides of the lamp, and passes to the burners, and

that the products of combustion pass up through the glass chimneys and through the metal prolongations thereof into the lightingbox, from which they escape by the outlets 11 and 12.

It will further be seen that if the gas be turned on it will escape up the chimneys and into the lighting-box, and that when the torch is inserted into the box through either of the doors 10 (which assumes the dotted position shown in Fig. II) the lamp will be lighted from above without any liability of injury either to the mantles or the glass chimneys.

In order to insure the lighting of both burners by a single application of the torch, the metal chimneys are surmounted by the hoods 13 toconverge the streams of gas, and the guides 14 are provided on the lighting-doors 10 to locate the torch centrally.

If there be only one burner, the hoods 13 are unnecessary, as the metal chimney would naturally be arranged in the center of the lighting-box, and if there be several burners it is only necessary to arrange the hoods so that all the streams of gas from the several chimneys shall be converged to a convenient part of the lighting-box for the application of the torch.

In Fig. I the burners are shown suspended from the framework of the lamp by the wires 15, with interposed springs 16. I find this elastic suspension of value when the lamps are exposed to concussion or vibration, which would otherwise be destructive to the mantles. The connection to the gas cock or cocks is made by means of flexible tubing.

I attach considerable importance to the fact that in the construction described the lower part of the lamp is quite closed in, so that the mantles and fittings cannot in any way be interfered with except by those duly authorized.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a street-lamp, in combination a lower glazed chamber forming the lamp proper; an upper chamber forming a lighting-box; a partition separating the upper from the lower chamber and a burner carried in the lower chamberand provided with a chimney, which chimney or a prolongation thereof is carried up through the partition into the lightingbox, which box has a door or opening allowing access into the box above the partition entirely independent of the glazed chamber; substantially as described and illustrated.

2. In a street-lamp, in combination; alower glazed chamber; the two burners, each provided with chimneys; a lighting-box provided with two metal chimneys forming prolongations of the lamp-chimneys and each having ing outlet-openings through the horizontal partition, and the deflector below the horizontal partition to direct the air against the walls of the glazed chamber, substantially as described.

4. In combination with the lower chamber, the burner having the chimney extending upward, the upper lighting-chamber to-receive the chimney, and the inwardly opening spring-door of the lighting-chamber adapted to guide the torch into the lighting-chamber, said upper lighting-chamber having a lighting door or opening by which access may be had thereto independent of the glazed or airinlet chambers, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

CHARLES REVILL BELLAMY. lVitnesses:

R. D. Pnrrnnson, ROBERT A. SLOAN.

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