US240699A - Egbert haase - Google Patents

Description

(Model.) R. HAASE.

Electrio Gas Lighting and ExtinguishingApparatus'. No. 240,699. Patented April 26,1881.

UNITED STATES PATENT OFFICE.

ROBERT HAASE, OF INDIANAPOLIS, INDIANA.

ELECTRIC GAS LIGHTING AND EXTINGUISHING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 240,699, dated April 26, 1881.

Application tiled February 11, 1881.

To all whom it may concern Be it known that I, ROBERT HAAsE, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Electric Gas Lighting and Extinguishing Apparatus, ot' which the following is a specification. p

This invention relates to a gas lighting and extinguishing apparatus operated by both permanent and electro magnetism, its object being to secure the prompt lightingl of the gas and extinguishment ofthe tlame at the burner in response to the sending of an electric current, to insure a stead y flow of gas when lighted and prevent its escape when extinguished.

In the accompanying drawings, Figure l is a view of my apparatus mainly in vertical central section. Fig. 2 is a view mainly in vertical elevation, with a portion of the outer casing broken away and a part ot' the electromagnet shown in section. Figs.3, 4, 5, 6, and 7 are detached views ot parts which will bc hereinafter referred to.

The letter B in Figs. 1 and 2 indicates a hollowvcasing, preferably of glass, and generally cylindrical in form,its lower portion, B', being, however, somewhat contracted and closed at the bottom, except a central aperture, b, surrounding` which, and projecting upward centrally within the portion B', is a tube, b', extending nearly tothe top of the contracted portion, between the wall of which and the tube is thus formed an annular chamber, D.

Upon the upper end ofthe casin g B is screwed a metal cap, A, the upper part ot' which is substantially a hollow eone,i`ron1 the top of which projects upward an externally scrcwthreadcd nipple, A', upon which is screwed the burnerpillar E. Around the base of this burner-pillar tits closely a band, B, from which a flat metallic arm, I, extends upward alongside the pillar, a portion of its width being to one side of said pillar, and a portion, t', of said arm being bent back outward and downward and provided with a binding-post, p', around which its tip is bent and secured in electrical connection. To the said tip is secured one end of a light metallic strip spring, L, the upper end of which is fastened Iirmly to the inner end of a trident-plate, M, which is pivoted vertically edgewise between ears projecting rearwardly (Model.)

from near the top ot1 the straight portion of' arm I, and has its toothed end projecting through an opening, m, in said arm and extending across and slightly beyond the flameslit in the burner-tip n.

The lower contracted portion, B', ot' the casing B sits in acorrespondingly-shaped metallic cup, G, within which it may be cemented or secured in any convenient manner. From the bottom of this cup extends downward a hollow stem, N, lined preferably with a glass tube, t, the lower end of which is contracted, as at t', and the top of which coincides with the opening b in the bottom of said contracted portion B' of the casin g. The lower portion of the stem N is composed of a foot-piece, J, through which is formed a transverse passage,j, from which is cut a short passage, j', which coincides with and leads to the opening through the glass tube t. The foot-piece J is arranged between two parallel hollow jaws, c u, which fork from the internally screw-threaded coupling U, by which the apparatus is to be attached to the end of a gas-pipe, and a hollow pivot-bolt, T, passing through said jaws, and the transverse passage in said footpiece holds the latter in place between said jaws, the tip ot' said footpiece and the adjacent portion ofthe coupling between the jaws being of such shape that the former may have a limited swinging movement upon said hollow pivot, which hasin its upper part two openings, c o, either of which, or both partially, may be brought to coincide with the short passage j', and inits under side an opening, o', which connects its bore with the cavity ot' the coupling V.

Between the jaws a vu and the foot-piece J are arranged rubber or leather washers yy, and the tip ot' the hollow pivot-pin T is covered and closed by a screw-cap, T', which may be screwed up tightly and draw the jaws u very slightly but suiciently toward each other, on account of the elasticity of the metal, to clamp the'foot-piece and hold it in any position to which it may be adjusted, for a purpose which will presently appear.

Vithin the casing B is vertically arranged an electro magnetic coil, H, provided with a hollow core, O, the bore of which is lined by a `glass tube, O'. The lower end of the magnet-coil rests upon the shoulder 'formed by the contraction ot' the lower part ot' case B. The

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lower end of the core U is slotted transversely and set inwardly some distance from the end of the coil to leave a small chamber, and the upper end is coned and projects beyond the coil, and fits snugly in a central countersink formed in a centrally-bored disk, W, of wood or other suitable insulating' material, which is snugly ittedwithinthecapA. Theinsulated threaded shank of a screw-post,p, extends through the cap A and disk XV, and is connected with one terminal of the coil H, the other terminal of which is connected to a narrow platina strip, h, which extends downward into the annular chamberl D and below the surface of a body of mercury, X, held within said chamber. The post p is insulated by a lava sleeve, p2, the lava resisting the action of the heat, while rubber would be soon disintegrated thereby.

Surrounding the tube b', and with its wall extending down into the mercury in said annular chamber, is an inverted cup-shaped gasvalve, F, the lower margin of which is slotted, as at u, while from the top of said valve projects aslotted collar, j", which embraces snugly the upper end of a permanently-magnetic spindle, S, which extends slightly above said collar, while its lower end extends downward through the tube b and the glass tube t, which lines the stem N, and has acone-shaped tip, s, which rests normally upon an annular packing or cushion, preferably of india-rubber, which lies upon the bottom of said tube t. The coneshaped tip of the spindle closes the gas-passage between the hollow pivot-pin T and the opening up through the stem N and tube b to the annular chamber D. The spindle S, it will be understood, is sufficiently smaller in crosssection than the passage in which it is arran ged to permit a proper flow of gas alongside it through said passage.

Into the top of the spindle S is screwed the lower end of a brass rod, R', which extends upward through the glass-lined core G and burnerpillar, and has attached to its upper end a flattened plug', r,which extends into the burner-tip, and has a thin platina point, l, projecting at a right angle from its upper end and outward through the frame-slit of said burnertip. The said rod R is smaller than the passage through the core to admit of a iiow of gas.

ln the normal condition ofthe parts-that is, when the slots u of the valve F are below the level of the mercury in the annular chamber D, the cup resting upon the top of tube bthe conical tip of the spindle S closes the gaspassage j,and the platina point K rests upon the lower tooth of the tridentplate M and immediately under the tip of Ithe intermediate shorter middle tooth, on.

The terminals of the linc-wire are respectively secured to the screw-posts p p', and the operation is as follows: A current of electricity being sent over the line,it passes, say, from post 1) to coil H, through said coil and over its lower terminal plate, h, through the mercury in chamber D to valve F, over the valvespindle S, rod R', plug r, platina point l, trident-plate M, spring L, post p', and off again to the line. Immediately the current passes the hollow core C is magnetized and attracts the spindle S, lifting the valve F so that the tops of its slots a risc above the mercury, and the conical tip s being raised, of course, at the same time, gas will ilow from the hollow coupling-joint V through the hollow pivot-pin il and up through stem N, tube b., core (l, the burner-pillar, and out through the slit of the burner-tip. As the valve rises the lrod lt is forced upward, the platina point K is lifted from the lower tooth of the trident-plate, strikes the short middle tooth, m', rises, and slips by it, the spring L allowing the plate to yield slightly and throwing the upper tooth down quickly to meet the rising platina point, the momentary breaking of circuit by which, as it scrapes past the short tooth, causes an electricspark to be emitted from said tooth across the burner-slit, said spark igniting the issuing` gas. rlBhe spindle S, being permanently magnetic, adheres to the core C of the coil H after the current has passed and ceased, and thus l holds the valve open. To extinguish the gas a reversed current is sent over the line,which polarizcs the core so that a like pole will be in contact with the pole of the magnetic spindle, and of course said spindle will be repelled and fall, placing the parts in their normal condition..

In order to properly locate the plug 1' and the platina point K, the burner-tip is made in two longitudinal halves, kk', as shown in Fig. 7, bein g split downward from the llame-slit. The plug r being' placed in one of the halves of the burner, so that its edges will close the slit below the platina point, and the said point being arranged to project outwardly through the slit, the other half of thc burner may be placed in proper position, and the complete burner then inserted in thetop of the pillar.

As many of thc apparatus as desired may be included in the same circuit.

The reason for pivoting the lower end of the stem N between the jaws a a is that it is found impracticable to always maintain the gas-feed pipe which is joined to the coupling U in an exactly vertical position, and any variation therefrom would affect the level of the mercury with respect to the valve were not some provision made to prevent it.

By slightly swinging the stem N upon the pivot-pin T the casing may be brought to a true vertical position when found to vary therefrom, and so secured, as before explained; and, further, the coupling may be turned upon the pipe to assist in the same object.

The hollow core C of the helix H is lined with glass, in order to prevent its corrosion by the moisture and liquid hydrocarbon condensed from the gas, and for the same purpose the stem N is lined with glass.

l. In a gas lighting and extinguishing apparatus, the combination, with the electro-mag- IOO IIO

netic helix having hollow core C, of the gasvalve subject to attraction by said core, and having the rod extendingupward and provided at its end with a contactpoint arranged to make and break circuit in conjunction with another contact-point at the burner-tip, substantially as described.

2. In combination with the burner and the casing having the annular chamber D, the coil having the hollow core C, the valve F, resting in said annular chamber, and provided with the magnetized spindle S, having its tip arranged to close a gas-passage, the rod It', extending upward from said spindle through the said hollow core C, and provided at its upper end with a contact-point arranged to make and break contact with another contact-point at the burner-tip, substantially as described.

3. The combination, with the suitably supported burner-tip, of the point K, extending outward through the slit in said tip, and attached at its inner end to a conductor moved by electro-magnetism, and a suitable contactl point arranged outside the burner in the path of said point K and near said slit, substantially as described.

4. The combination, with the contact-point vK, projecting from the burner-tip slit and arranged for operation by electro-magnetism, of

the yielding resiliently supported tridentplate, having the two outer teeth respectively above and below said point K and the short tooth in the path of said point, substantially as described.

5. The casing of the apparatus, containing a mercury valve-chamber and mounted adjustably on a pivotal support, whereby the mercury in said chamber may be kept at a proper level with respect to the valve, substantially as described.

6. In an electrical gaslighting apparatus, the operating electro-magnet having a hollow core lined with glass to form a gas-passage, substantial] y as described.

7. In a gas-lighting apparatus, the bindingpost p, passing through the metal cap A, and insulated therefrom by a lava sleeve surrounding the shank ot' said post, substantially as and for the purpose set forth.

The above statement I can assert through my personal conviction 5 and in testimony thereof I have signed my name to this specitication in the presen cc of two subscribing witnesses.

ROBERT HAASE.

Witnesses:

NATHAN Mouais, A. I. MossLER.

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