US618078A

US618078A - Andrew j

Info

Publication number: US618078A
Authority: US
Publication date: 1899-01-24
Anticipated expiration: 1916-01-24

Description

No. 618,078. Patented Jan. 24, I899.

A. J. ENGLISH.

HYDROGARBON VAPOR LAMP.

(Application filed Sept. 25, 1897.)

(No Model.)

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UNITED STATES PATENT OFFICE.

ANDREIV J. ENGLISH, OF CINCINNATI, OHIO, ASSIGNOR TO THE PERFECTION LIGHT COMPANY,

OF SAME PLACE.

HYDROCARBON-VAPOR LAM SPECIFICATION forming part of Letters ?atent No. 618,078, dated January 24, 1899". Application filed September 25,1897. senile. 653,070. (No model.)

To all whom it may concern.-

Be it known that 1, ANDREW J. ENGLISH, a citizen of the United States, residing at Cincinnati, Ohio, have invented new and useful Improvements in Hydrocarbon-Vapor Lamps,

of which the following is a specification.

My invent-ion relates to vapor-lamps, its object being to provide a simple, cheap, and eflicient lamp and method of operating the [0 same in which the vapor of a hydrocarbon liquid may be employed with safety to provide illumination in connection with an incandescent mantle.

To this end my invention consists in a portable vapor-lamp embodying certain details of construction and operation of parts to be hereinafter described, and particularly pointed out in the claims. a

My invention is illustrated in the accompanying drawing, showing the lamp in sectional elevation.

Referring now to the drawing, A designates a reservoir of any convenient form, in which are two apertures, one of which is occupied by the oil-feed tube B and the other by a tight-fitting screw-plug P, both presently to be described.

The reservoir A is mounted on a suitable base A and is encircled below by the mixingtube C, which passes beneath the reservoir and terminates in front in a vertical-Bunsen burner o-,with incandescent mantle m, globe g, and the usual attachments. At the rear the tube C is extended upward and curves 5 forward above the globe g, having its mouth inclosed in a perforated air-screen a".

The oil-feed tube B enters the reservoir A to near the bottom, where it has a screenmouth I). It extends upward behind the burner to a valve-chamber '0, provided with a needle-valve i), (such as ordinarily employed in gasolene stove burners,) which chamber is projected forward and slightly upward, terminating in a curved retort b turned horizontally backward into the air-screen cZwhere it is terminated by a discharge-nozzle 6 directing the gas into the receiving-mouth of the mixing-tube C.

The mixing-tube O by its relatively great length effects a perfect admixture of the air and vaporized gasolene, while at the same time its position makes it a convenient handle by which the lamp may be carried.

The screw-plug I, besides its ordinary function as a stopper of the filling-orifice, is perforated and carries an independent valve 19, seated at the under side, opening inward and normally held to place by a coiled spring 3. The plug P is countersunk for the convenient attachment of an air-pump t, as indicated by dotted lines, (or the plug may be sufficiently elongated to constitute the barrel of an airpump forming part of the lamp structure, as also indicated by dotted lines,) and by this means sufficient air is injected into the reser- 6 5 voir to maintain the slight pressure required to lift the oil to the retort 12 The air-pump may be embodied in the reservoir as part of the structure, if desired. A suitable indicatingfioat k may be arranged to project its stem upward into the orifice of the plugP as a guide in filling.

The mode of operation is as follows: The reservoir A being charged with a hydrocarbon liquid, such as coal-oil or gasolene and air under pressure, the retort b is heated in any convenient manner and a supply of gasolene admitted thereto to start the operation. The jet of vaporized gasolene issuing from the retort Z2 carries air with it into the tube C, and the passage through said tube effects athorough mixture of same. The combined gases are lighted at the mantle in the usual manner, producing brilliant incandesence, the degree of which is regulated by the 8 5 valve v and the retort 11 being located in the upward path of the products of comb ustion rising from the mantle m,the action once started continues as long as the air-pressure Within the reservoir A is sufficient to feed the gasoa lene to the retort W, or so long as the supply of gasolene lasts, or until the valve 1: is shut off.

A feature of importance to the durability of the lamp in continued use is the discharging-orifice of the retort b". For this purpose ordinary metals are not serviceable for any length of time, as the stream of heated vapor issuing through the minute orifice is apt to corrode the metal and clog the orifice, and in removing the obstruction the orifice is so enlarged as to destroy the efficiency of action. Among metals I derive the best results from aluminium, but upon the whole I find it best to fit the discharge end of the retort with a plug 6 of lava, perforated with an exceedingly minute orifice and hardened by intense heat before use. As thus prepared and used this material suffers no corrosion and does not wear appreciably by service.

I claim as my invention and desire to secure by Letters Patent of the United States 1. In a portable vapor-lamp, the combination with the reservoir of an air-mixing conduit having an upright end supporting a burner, an open end located in a plane above said burner and an intermediate curved portion secured to said reservoir, an oil-feed pipe communicating with the interior of said reservoir, a vaporizer connected with said pipe and located immediately above said burner and having a discharge-orifice in line with the open end of the air-mixing conduit, whereby the vapor generated in said vaporizer may discharge directly into said air-mixing conduit, and a valve controlling the supply of oil to said vaporizer, substantially as described.

2. In a portable vapor-lamp, the combination with the reservoir of an air-mixing conduit having an upright end supporting a burner, an open end located in a plane above said burner and an intermediate curved portion secured to said reservoir, an oil-feed pipe communicating with the interior of said reservoir and extending above the same, a vaporizer connected with said pipe and located immediately above said burner and having a discharge-orifice in line with the open end of the air-mixing conduit, whereby the vapor generated in said vaporizer may discharge directly into said air-mixing conduit, a valve controlling the supply of oil to said vaporizer, and means for compressing air within said reservoir, substantially as described.

3. In a vapor-lamp, the combination with the reservoir, of an air-mixing conduit comprising a tube having an upright end supporting a burner, a central curved portion extending beneath and attached to the reservoir and an upright portion affording a handle, said second upright portion extending upward to a point above the burner and being curved inward to extend in a horizontal plane and having an outer open end, an oilfeed pipe communicating with the reservoir and extending upward therefrom, a vaporizer connected with said pipe and located immediately above said burner and having a discharge-orifice in line with the open end of the air-mixing conduit, whereby the vapor generated in said vaporizer may discharge into said air-mixing conduit, a valve controlling the supply of oil to said vaporizer, and means for compressing air within said reservoir, substantially as described.

4. In a lamp of the character indicated, a Bunsen burner having its supply-pipe extending downward therefrom in a U curve and presenting its receiving-mouth adjacent to and above the burner, in combination with the reservoir arranged in, or in connection with, the lower bight of the mixing-tube or supply-pipe, the feed-pipe extending upward and outward and the vaporizing-retort arranged above the burner to discharge into the mouth of the mixing-tube or supply-pipe, substantially as described.

5. In a vapor-lamp, the combination with the reservoir, of an air-mixing conduit connected at one end with a burner and having an open end located in a plane above said burner, an oil-feed pipe communicating with the interior of said reservoir, avaporizer comprising a tube connected at one end with said pipe and bent upon itself to provide a generating-chamber immediately above said burner and from said bent portion havingarearward extension provided with a discharge-orifice in line with the open end of the air mixingconduit, whereby the vapor generated in said vaporizer maydischarge into said air-mixing conduit, and a valve controlling the supply of oil to said vaporizer, substantially as described.

6. In a vapor-lamp, the combination with the burner, of a reservoir, an oil-feed pipe communicating with the interior thereof and rising upward therefrom and having a laterally-extending, upwardly-inclined portion affording a valve-chamber and provided with a vaporizer comprising a terminal extension carried into the path of the products of com bustion of the burner and bent backward to extend in a horizontal direction and at the outer end of said horizontal portion having a dischargeorifice, a valve in said valve chamber, and a tube supporting at one end said burner, and having its opposite open end in line with the discharge-orifice of said vaporizer, whereby the vapor generated in the vaporizer may be discharged into said tube and together with the air drawn in thereby and mixed with said vapor be conveyed by said tube to the burner, substantially as described.

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

ANDREW J. ENGLISH. WVitnesses:

L. M. HosEA, HERBERT J. ALLSUP.