US293330A - jelhvixs - Google Patents

Description

(No Model.)

B. H. JENKINS.

ELEOTRO MAGNETIC GAS LIGHTER.

No. 293,330. Patented Feb; 12, 1884.

N PETERS. Plmle UNITED STATES PATENT @rricn.

EVANS H. JENKINS, OF BIG *IllIONI), INDIANA.

ELECTRO-MAGNETIG GAS-LIGH SPECIFICATION forming part of Letters Patent No. 293,330, dated February 12, 1884.

(X0 model.)

To all whom it may concern Be it known that I, Evans II. JENKINS, a citizen of the United States, residing at Rielmond, in the county of Ti ayne and State of Indiana, have invented certain new and useful Improvements in Electro-Magnetic Gas- Lighters, of which the following is a speeilica tion.

My invention relates to that class of gasligliters in which an electric current serves as the means for lighting and extinguishing the jet of gas at the burner by opening and closing a valve which controls the passage of the gas to the burner, such current acting thus through the medium of an electro-magnet and an armature connected with the valve-operating devices, a constant flame or taper-light being maintained at the burner-tip, for the purpose of igniting the jet of gas when the latter is turned on full head by the valve action.

My invention has for its object to secure an accurate and reliable action or" the valveoperating connections; and a "further object of my invention is to provide an improved casin g or housing for my improved operating mechanism, which shall be so arranged as to form an upper andalower compartment, each of which shall be completely isolated from the other.

To the above ends my invention consists in the provision of a lever carrying the armature, a counterweight, and a valve for regulating the flow of gas to the burner, and mounted pivotally upon an adjustable fulcrum in such manner as to be self-adjusting; also, in theprovision of a conoidal valve attached to the said lever, and a valveseat of peculiar form located in one end of the gas-ingress tube.

My invention consists, further, in the provision of a peculiarly-arranged casing for my improved apparatus having its upper and lower sections united by a lapped joint, and provided with athird section, peculiarly formed and arranged, by which th said casing is divided into an upper and a lower conipartnient, each of which is completely isolated from the other.

My invention further consists in certain details of construction, hereinafter described and claimed.

In the drawings which accompany this specification, forming a part thereof, Figure l is a vertical sectional view of my improved apparatus. Fig. 2 isa top view of the bottomplate of the gas-chamber, showing the position of the tilting lever, the armature, and the valve attachment. Fig. 3 is a vertical cross-section view of my improved apparatus. Fig. dis an outline view of the base-plate upon which the working parts rest, and to which they are attached.

Like letters refer to like parts.

The letter A in Figs. 1 and 3 designates a cylindrical metallic easing, into which is fitted acylindrical dome, B, which is removable. The upper portion of the casing A is made slightly flaring, and forms a tight joint be tween the surfaces of the using and the dome, as seen at O.

D is a sub-cylinder, closed at the top, formic an inverted cup, and made to pass inside of the casing A, in which it fits tightly, occupying the upper section thereof, and the top plate, (I, of which forms the bottom of the gas-chainher, which is composed of the interior of the dome l3 and the plated. The divided containingcasing thus constructed is greatly superior in point of rigidity and impermeability to atmospheric influences to those casings in which the contiguous edges of the sections are separated by the external flange of the di viding plate or diaphragm.

E is a pipe extending from the dome L up to and sustaining the burner G and burnerguard Y.

1* is a slotted screw-tap working on a screwthread inside of the pipe IE, throughwhich the gas passes to the burner.

G is a gas-burner of the ordinary construction.

H, Figs. 1 and 3, is the main supply gaspipe, and a is the screwconnection. n is the base-plate, which sustains the coils ff of the magnet.

ll is a circular plate, having semicircular recesses cut out of its periphery, placed horizontally at a point near the bottom of the ens ing A, and having a hole in its center, through which the upper end of the supply-pipe II passes into and is connected with a hollow collar, g, whicn is closed at its upper end, forming a chamber, which rests upon theupper surface of the plate U. Curved branch gassupply pipes J and K are connected with the col lar or chamber g on opposite sides, and extend 2 I eeaaae upward inside of the sub case or cylinder D,"

' the gas-chamber is chambered out to receive i seen at R, Figs. 1 and 2.

a conoidal valve, L, which is secured to one end of a tilting lever, N. The mouth of the curved branch pipe J thus chambered out forms avalveseat for the conoidal valve, L. The periphery of the valve-scat is beveled on the outer surface, reducing the upper portionof the valve-seat to an edge.

N is a tilting lever, pivoted near its longitudinal center, and carrying the conoidal valve L at one end and a eounterbalance-weight, S, at the opposite end. A set-screw, Q, is in serted in the weight end of the tilting lever N, and extends through the weight and far enough below it to rest upon the plate (I, and by its action regulates the extent of the vibrations of the tilting lever N.

Attached to the lever N, between the pivot and the valve L, and immediately in front of the pivot, is the armature 0, (see Fig. 2,) the opposite ends of which correspond with the position of the poles of the magnet, 13 I, to

which the ends of the armature are attracted by the closing of the current. The weight end of the tilting lever N is provided with an opening, to allow the upper end of the curved branch supply-pipe K to pass through it, as The upper open end of the supply branch pipe K is provided with a female screw-thread, into which a slotted male screw is inserted. The slot in the male screw R is raisedor lowered by turning the screw, and as much of the opening is brought above the end of the pipe as may be required to supply gas for ataper or continuous burner. The stem M of the conoidal valve L is loosely inserted in the end of the tilting lever N, by which an oscillating motion of the valve is permitted, making the valve practically selfadjusting in its seat. Vertical ears projecting downward from the under surface of the tilting lever N are furnished with holes to receive the pin which serves as the axis or pivot upon which the tilting lever has its vibrations, afulcrum,.Z, formed of a base-plate and a lug or ear turned up upon each edge of said plate at right angles, forming vertical supports for the pivot-pin, and fitting closely outside the pendent ears of the lever N, and provided with holes to receive said pivot-pin corresponding with the pin-holes in said ears, (seen at Z, Figs. 1 and 3.) The bottom plate of the fulcrum Z has an oblong opening at or near its center, through which a screw passes, said screw having its thread in the plate (I. The fulcrumplate is thus permitted lateral motion around the screw, the effect of which is to allow the adjustment of the tilting lever N and promote U the self-adjusting functions of the eonoidal valve L.

The magnets are of the common form used in telegraph-instruments, and the armature is operated substantially in the same manner.

The curved branch supply-pipes. J and K, where they pass through the plate d, are suitably packed to secure a tight joint and prevent the escape of gas from the chamber.

It will be seen that the tilting lever N and its attachments, the poles of the magnet, 19 P, and the valve-seat and taper-supply screw R are all contained within the gas-ehamber,an(l are each and all of them secured to and rest upon the plate d.

The sub-cylinder I) may be provided with vertical side strips for supports, secured to the circular plate U or otherwise, or it may be supported by the magnet f, or in any other.

suitable manner. A screw, t, is placed within the hollow collar g, passing through the top of the same, and having its terminus thread on the base-bar n of the magnet. The hollow collar g is attached to the circular plateU, and tightening the screw 25 brings the hollow collar g and the plate a rigidly in connection. The poles l? P, Fig. 2, have screws 9 g, which penetrate the cores of the magnets f f, with shoulders formed on their heads, which rest upon the plate (Z, securing it rigidly to the magnets ff when the screws are turned down to their limit.

The binding-posts I I are of the usual form,

and are connected with the magnets in the usual manner.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is

1. In an electro-magnetic gasdighter, the combination, with an electro-magnet and a gas-inlet duct provided with a valve seat, of a ICO counterbalanced tilting lever mounted pivotally upon an adjustable fulcrum, an armature attached to said lever, and a conoidal valve, also attached to said lever and arranged to operate in conjunction with the valve-seat of the gas-inlet duet, substantially as and for the purposes described.

2. The combination, with an electro-magnet and a gas-inlet duct provided with avalveseat, of a tilting lever carrying an armature, and a conoidal valve arranged to act in con- IIO junction with the valve-seat and mounted pivotally upon an adjustable fulcrum, a counterbalance-weight attached to said lever, and a screw passing through the counter-weight and arranged to limit the descent of said weight, substantially as and for the purposes set forth.

3. The combination, with an electro-magnet, a main gas-inlet duct provided with a valve-seat, and an auxiliary gas-inlet duct provided with an adjustable discharge-opening, of a tilting lever mounted pivotally upon an adjust-able fulcrum, an armature attached to said lever, a conoidal valve, also attached to said lever and arranged to act in conjunction with the valve-seat, and a counterbalanceweight mounted upon said lever and provided with an aperture for the reception of the up- Z, the armature 0, attached to said lever, the

'counterbalanceweight S, with its regulating screw Q, and the conoidal valve L, secured movably to the lever by its stem M, and arranged to operate in conjunction with the said beveled valve-seat, substantially as set forth.

5. The combination, with the eleetro-magnet f f, the inlet-duct H, the branch duct J, provided at its upper extremity with the beveled valve-seat, and the auxiliary branch duct K, of the sub-cylinder D, provided with the inverted cover for the terminus of said duct, the adjusting-screw R, the tilting lever N, mounted upon an adjustable fulcrum secured to said sub-cylinder, the conoidal valve L, secured movably by its stem to said lever, the apertured counter-weight S, and the armature O, mounted upon said lever, substantially as described.

6. The combination, with the casing-sections A B, the sub-cylinder D, and the base plate U, of the chamber g, the plate a, the magnet f f, the screw 2?, connecting the said chamber with the plate a, the screws a, connecting the plate a to the base of the magnet, and the screws 9, connecting the upper ends of the magnet to the plate (Z of sub-cylinder D, substantially as specified. '7. The combination, withthe casing and the sub-cylinder, the counterbalanced lever carrying the armature and the conoidal valve, and the electromagnet, of the base-plate n, the aperture chamber 9, and the branches J K, opening from the apertures in said chamher, said branch J being provided with a valveseat for the conoiual valve, and said branch I being provided with an adjustable valve, substantially as herein set forth.

In testimony whereof Iaiiixmy signature in presence of two witnesses.

EVANS H. JENKINS.

.Vitnesses:

J OHN F. ROBBINS, XV. T. DENNIS.

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