US1023563A - Miner's safety-lamp. - Google Patents

Description

E. A. HAILWOOD.

MINER'S SAFETY LAMP.

APPLICATION FILED mmza, 1907.

Patented Apr. 16, 1912.

5 W, Inventor.-

M 5 2 Ernest A. Jfailwood,

COLUMBIA PLANDGRAPH CO WAS HINGTON. D. c.

iii

ERNEST ARTHUR- I-IAILWOOD, OF MORLEY, ENGLAND.

MINERS SAFETY-LAMP.

Specification of Letters Patent. Patcgntgd Apr, 16, 1912 Application filed January 28, 1907.

Serial No. 354,502.

To all whom it may concern:

Be it known that I, ERNEST ARTHUR HAIL- wooD, a subject of the King of Great Britain, residing at 7 Gladstone Terrace, Morley, in the county of York, England, late of 3 Blenheim Terrace, Rooms Lane, Morley, in the county of York, England, have invented certain new and useful Improvements in Miners Safety-Lamps, of which the following is a specification.

In miners safety lamps hitherto constructed the oil vessel or container has usually been arranged in or completely surrounding the base of the lamp, it has therefore been found to be impracticable to arrange in the base of the lamp a glass or lens of such dimensions as to reduce the ground shadow to a minimum, especially as regards the ground immediately in front of the bearer. Persons skilled in the art will understand the very limited dimensions a miners safety lamp may take. Another objectionable feature of such lamps is the waste of oil on account of leakage down the several holes bored in the lamp vessel for the reception of the electric igniting pin and wick raiser, and also due to oil evaporated by reason of the great surface of lamp vessel exposed to the heat of the flame. Another objection to such lamps is that no provision has hitherto been made for removing completely the charred or burned portions of the wick.

Now the object of my invention is, in a miners safety lamp to so arrange the oil vessel, lamp base, magnetic lock, electric igniting device, wick raiser and snuft'er that a lens or glass of comparatively large diameter may be arranged in the base portion of the lamp, so as to permit a great number of rays of light from the burner or burners to pass down through such lens illuminating the ground immediately underneath and in front of the lamp, in addition to the light given out horizontally through the vertical cylindrical glass, and this with the minimum loss of oil from leakage or evaporation. v

The invention includes the novel features of construction and arrangement and combination of parts hereinafter described and particularly defined by the appended claims.

An embodiment of the invention is illustrated in the accompanying drawings, in which the figure represents a sectional elevation of the lamp.

In carrying my invention into effect the base of the lamp consists of a circular metal flanged base ring 1, having a plurality of supporting legs 2. The inner flange 3 carries a glass lens l of any suitable shape, which lens 4; is secured by threaded ring 5. On the upper part 6 of the flanged base ring lens I place a cylindrical glass 7 of the type usually employed in miners safety lamps. This cylindrical glass carries on its upper end the flange 8 of the gauze or perforated cone 5), above which flange 8 I place a flanged metal middle ring 10 having suitable air inlet apertures 11 formed in the horizontal part of same. Supported on the upper part of such flanged middle ring is the metal outside bonnet 12 carrying on its upper surface the hook or handle 18 with which to support the lamp. The bonnet is provided with the usual outlet holes 14. Pillars 15 are riveted to middle ring 10, the other ends of such pillars being secured to a threaded metal bush 16, the threads on which ring engage corresponding threads formed on the flanged base ring 1. The oil vessel or container 17 ,-preferably of semiannular shape,may be attached by any suitable means to one side of the said flanged base ring 1; the wick tube or tubes 18 (formed of metal or insulating material) being secured by means of a threaded flanged ring 19 into a recess formed in the upper face or side of the flanged base ring 1 and oil vessel. The said wick is preferably arranged in such position as to cause the flame to throw rays of light not only through the base lens 4:, but also through the cylindrical glass. A magnetic lock 22 may be fixed in the flanged base ring 1, locking the same to the ring 16 by engaging in teeth 23 of a circular rack formed on the underside of the ring 16.

For the purpose of carrying the current to ignite the wick by electricity, I place at any convenient spot as, for instance through the vessel 17, an insulator 25, provided with a brass tube 26 in which a metal lighting pin 27 may slide or revolve within certain limits freely. The said insulating lighting pin has an igniting terminal 28 near the extremity of the wick tube 18, and is also shaped or constructed so as to serve as a combined wick raiser and snuffer, and for these purposes is provided with a wick raising arm or projection 30, and a wick snutfer arm or projection 30", which latter is adapted, on the rotation of the part 27, to sweep across the end of the wick and remove burned or charred portions thereof, and thus maintain a bright light. The parts are kept in proper position by springs 31.

It will be obvious from the shape of the wick raiser and snuffer described in this specification, that to bring the required part into play it is only necessary to operate the lighting pin when the raiser may be caused to dig into the wick pushing same into the desired position, or the snuffer may be caused to pass over the wick removing any burned or charred portions.

To ignite the lamp electrically, the lighting pin or conductor is brought into connection with a suitable source of electricity (not shown), such as an induced current obtained by passing current from accumulators through an induction coil. The current would pass along the insulated lighting pin or conductor and lighting pin point, sparking to the Wick tube, igniting the wick and thence forward by means of the lamp body to the other pole of the generator.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a miners safety lamp, in combination, a casing, an oil reservoir, a Wick tube extending from said reservoir within said casing, an insulating tube passing through said casing, and a combined Wick snufie'r and lighting pin movably supported within said insulating tube, said combined wick snufi'er and lighting pin being operatively associated with the wick in said wick tube.

2. In a miners safety lamp, in combina tion, a casing, an oil reservoir, a wick tube extending from said reservoir within said casing and a combined lighting pin, wick raiser and wick snuffer movably supported by said casing and insulated therefrom, said combined lighting pin, wick raiser and Wick snuifer being operatively associated with the wick in said Wick tube.

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

ERNEST ARTHUR I-IAILWOOD.

IVitnesses:

SAM. VVI-IETTALL, WILLIAM Moss TELroRD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents

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