US18784A - Gas-lighting lantern - Google Patents

Description

A. WILSON.

Gas Lighter.

Patented Dec. 1, 1857.

N. PETERS Pnowmhu n hw. Washingmn. u. c.

UNITED STATES PATENT OFFICE.

ABEL WILSON, OF PHILADELPHIA, PENNSYLVANIA.

GAS-LIGHTING LANTERN.

- Specification of Letters Patent No.

To all whom it may concern:

Be it known that I, ABEL WILSON, of the city of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Lanterns for Lighting Gas; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawing and to the letters of reference marked thereon.

My invention relates to improvements in lanterns used by lamp-lighters for lighting gas, and consists in attaching to the top of the body or casing of the lantern a hollow perforated cone open at the top and above the latter a hollow corrugated or other suitably formed cone. The interior of the lantern communicates with the interior of I the perforated cone and the space between the two cones and with the external atmosphere.

My invention has for its object the instantaneous lighting of gas by simply holding the lantern in such a position with regard to the open burner that the gas from the same may enter the openings between the two cones.

In order to enable others skilled in the art to make and use my invention, I will now proceed to describe its construction and operation.

On reference to the drawing which forms a part of this specification, Figure 1 is a sectional elevation of my improved lantern. Fig. 2 an exterior View of the same. Fig. 3 a sectional plan on the line 1, 2 (Fig. 1); and Fig. 4: a view showing the position in which the lantern may be held in order to ignite the gas.

Similar letters refer to similar parts throughout the several views.

A is the exterior casing of the lantern having any convenient number of openings at furnished with suitable transparent material. In the interior of this casing a per forated metal cylinder B is so fitted that there shall be an air space between the two, the perforated cylinder being held in its proper position by means of springs (Z secured to the interior of the outer casing. Attached to the perforated cylinder and resting with a projecting flange on the top of the exterior casing is a hollow cone C perforated at the sides and open at the top. Attached to this cone is a corrugated hollow cone D, to this is secured a smaller cor- 18,784, dated December 1, 1857.

rugated cone E, and to the latter a still smaller cone F, to which as well as to the inner plate f is attached the ordinary lantern handle II. It will be observed that the openings formed by the corrugations of the three cones E, F and G, communicate with each other and, through the opening on the top of the perforated cone D, with the interior of the lantern. On the top of the outer casing A are a series of openings h, the bottom of the casing having a similar series of openings z' and on the bottom of the lantern are a series of openings j. The two former series of openings communicat- Ing with the space between the inner and outer casings and through the perforations of the inner casing with the interior of the lantern, and the openings j communicating direct with the same.

K is the lamp of the lantern furnished with a wick-tube 72 as in ordinary lamps, to which it is in other respects similar with the exception of the hollow cone shaped projection L in the cover of which is a minute orifice.

hen it is desirable to ignite the gas at a burner, the cock of the latter is opened and the lantern is held in about the position shown in Fig. 4:, that is with the open space between the perforated cone O and corrugated cone D directly above the burner, when ignition immediately takes place. This effect is produced as follows :\Vhen the lamp of the lantern is ignited the air rushes in through the openings i and j and passes upward through the openings formed by the corrugated cones to the atmosphere, thereby forming a continuous upward draft, so that the moment the lamp is brought near the burner, as before described, the gas at once aims at the open space between the cones O and D and rushes into the same, at the same time this rush of gas between the cone E and perforated cone D on account of the shape of the latter causes the flame of the lamp to take the direction of the arrows (Fig. 1), thereby meeting the gas and igniting the same. The perforated cone C performs the further important duty of preventing the lamp from being extinguished either by the sudden ignition of gas or excessive pressure of the atmosphere. The upper corrugated cones afford a further means of preventing the extinguishing of the lamp from the above causes.

By the employment of the inner perforated casing B, and by causing a body of air to pass through the openings in the exterior casing into the space between it and the inner casing and through perforations in the latter to the interior of the lamp, the outer casing is always maintained in a sufliciently cool condition to be handled with comfort. The lantern issubject to such frequent and violent agitation in the hands of the lamplighter that the flame from the wick of the lamp K would increase and consequently the might ensue if the hollow projecting cone L with its perforated top wasnot used. The gas or vapor generated by the heat in the interior of the lamp passes through an opening into the interiorof the hollow cone L,

I where it expands before it passes out of the minute orifice at the top, whence it is either carried off by the draft and discharged into the external atmosphere or it becomes ignited by the flame of the lamp, in which caseit will burn-with a small flame without any danger of the latter communicating with the interior of the lamp, the peculiar shape of the cone as well as its height prethe latter is in an inclined position or when it is agitated.

I Wish it to be understood that although I prefer three corrugated cones, I do not desire to confine myself to'that precise number or form of cones as one cone only will 'serve the desired purpose and'as the cones 'may' be 'made plain instead of corrugated. heat would become so intense that explosions But What I claim, anddesire to secure by Letters Patent, is

Surmounting the body or casing of a lantern with ahollow perforated cone C situated within the exterior cone D in the manner and for the purpose herein set forth.

In testimony whereof, I have signed my name to thisspecification before two subscribing witnesses.

ABEL WILSON.

Witnesses:

HENRY HOWSON, WILLIAM E. WALTON.

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