US28299A - Vapor-lamp - Google Patents

Description

I. W. PETTIBONE.

Gas Burner. No. 28,299. I Patented May 15, 1860.

N. PETERS. Phmoilnmgnpm Washingtom D. c,

UNITED STATES PTEN T OFFICE.

IRA \V. PETTIBONE, OF NORFOLK, CONNECTICUT.

VAPOR-LAMP.

Specification of Letters Patent No. 28,299, dated May 15, 1860.

To all whom it may concern:

Be it known that I, IRA W. PETTIBONE, of Norfolk, in the county of Litchfield and State of Connecticut, have invented certain new and useful Improvements in Burners for Vapor-Lamps, and that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, in which Figure 1 represents a side elevation of a burner embodying my improvements; Fig. 2, an elevation of that side of the same which is nearer the reservoir of fluid. Fig. 3 is a plan of the same. Fig. 4 is a vertical section of the same at the line 00 w of Fig. 3, and Fig. 5 is a horizontal section of the same at the line as 00 of Fig. 4.

My invention relates to that class of lamps in which the vapor of an inflammable liquid is mixed with air and burned, and the objects of my improvements are first to prevent the choking of the valve or orifice through which the vapor enters the mixing chamber by the accumulation of gum or resinous matter that is deposited by the vapor in passing through the small orifice; second, to prevent the whistling which accompanies the admission of air into the mixing chamber of the burner; and third, to render the burner more durable at the valve where the vapor of the liquid enters the mixing chamber.

The first part of my invention has reference to the first object, and consists in combining a supplementary valve with the one usually employed in vapor lamps to regulate the distribution of the vapor into the mixing chamber, the supplementary valve having a larger orifice than the other, and the two valves being separated by a space, so that the vapor passes through the orifice of the supplementary valve before it passes through the other. With a burner having this combination of valves the deposit of gum is transferred from the valve at the mixing chamber to the supplementary valve, and as the orifice of this valve is larger than is sufficient to pass the vapor, the deposit does not accumulate in sufficient quantities to injure the effect of the burner during the customary number of hours that a lamp is required to burn in one evening.

The second part of my invention consists in combining with the mixing chamber one or more elongated air tubes through which the air is admitted, in contradistinction to its direct admission through orifices; and I have found that if these tubes are of sufiicient length the whistling does not annoy the user.

The third part of my invention consists in combining with a conical pointed screw forming the valve, a block of hard metal perforated to form the orifice for the vapor, in contradistinction to forming this part of the burner of the same material as the remainder; this improvement greatly increases the durability of the burner, as the wearing of the orifice, which in burners of the ordinary construction gives out before the remainder of the burner, is to a great extent prevented.

The burner represented in the accompanying drawings embodies all my improvements in it the nozzle a, from which the jet of mixed vapor and air issues, is formed at the top of a tubular chamber B, in which the mixing of the two takes place. The nozzle is surmounted by two heaters, c and cl, which are secured to the exterior of the tubular chamber (B) project upward from it on either side of the jet of flame, and transmit to the chamber the heat imparted to them by the flame.

The base of the chamber B is hollow, and is fitted with a conical pointed screw h, whose conical end fits a perforation or orifice in a block of steel e, that closes the bot tom of the chamber and forms a partition between it and a second chamber & beneath; the side of the latter is perforated to form the orifice of the supplementary valve t, which is also a conical pointed screw, the point being more obtuse than that of the other (It). This second orifice communicates with a lateral chamber F, that communicates with the wick tube G, leading from the reservoir of camphene or other fluid to be burned.

The chamber B has two orifices a, in its sides just above the partition 6, and these communicate with a tube H through which air passes to the orifices. This tube in the present instance has a square section, and it is fitted with an air valve 8 by means of which the supply of air can be controlled; it is also made removable so that it can be slipped off to permit the cleaning of the orlfice of the valve it through the openmgs n.

When the burner is in action, the fluid passing from the reservoir is heated and is vaporized in whole or in partythe vapor passes through the two valves, mixes in the chamber B with the air entering through the air tubes H, and the mixed jet issues at the nozzle a, where it burns. As the heaters embrace the burning jet they receive heat from it and transmit the heat to the body of the burner, so that the heating of the burner and the vaporization of the liquid, when once commenced, 0 on continuously. The quantity of fiui vaporized is controlled by the screws h and t, and the quantity of air by the air valve 8, and when these have been properly adjusted the jet burns without appreciable smoke and with great steadiness.

I do not claim to be the first who devised a burner for vaporizing an inflammable liquid and mixing the same with air, but

2. I also claim the combination of the mixing chamber with an air tube or tubes to deaden the whistling noise which generally accompanies such burners.

3. I also claim arranging the air tube in such manner with reference to the mixing chamber of the vapor burner that it can be removed therefrom to permit cleaning substantially as herein set forth.

In testimony whereof I have hereunto subscribed my name.

IRA- W. PETTIBONE. Vitnesses F. H. \VALooTT, A. G. PETTIBONE.

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