US 593257 A
Description (OCR text may contain errors)
'2 SheetsSheet 1.
No. 593,257. Patented Nov. 9,1897.
2 N 0 TR m mL Wm AM WV mm (No Model.)
Patented Now,w 9, 1897.
In: walls PETERS on. mow-sumo m nmcvon a c UNITE STATESv PATENT @rEicE.
GEORGE WASHINGTON, OF BRUSSELS, BELGIUM, AssiGNOR TO THE GEORGE WASHINGTON LIGHTING COMPANY, OF JERSEY CITY, NEW JERSEY.
SPECIFICATION forming part of' Letters Patent No. 593,257, dated November 9, 1897.
Application filed July 7, 1897- Serial No. 643,698. (No model.)
To all whom it may concern.-
Be it known that I, GEORGE WASHINGTON, of Brussels, Kingdom of Belgium, have invented certain new and useful Improvements in Vapor-Lamps and I do hereby declare the following to be a full, clear, and exact descrip tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to an improvement in vapor-lamps, and more particularly to improvements in a combined oil and vapor valve designed for use in such lamp.
The object of my invention is to provide a single mechanism for actuating both valves, so that when actuated both valves are operated to either open or close their respective passage-ways, as the case may be.
With this end in view my invention consists in the parts and combinations of parts, as will be more fully described, and pointed out in the claims.
In the accompanying drawings, Figure 1 is a view of a lamp embodying my invention. Fig. 2 is a view in section through the coupling, vaporizing-tube, and valve-actuating mechanism; and Fig. 3is aview in horizontal section through the coupling, showing the needle-valve holder and the valve-actuating shaft.
A represents a lamp which may be a handlamp having an oil-reservoir permanently attached thereto or a bracket-lamp such as I have illustrated in Fig. 1. In the latter construction the bracket is hollow for the passage of oil or for the passage of a small tube a for conveying the oil to the lamp. The bracket or pipe therein is connected to a supply-pipe 1), leading to a reservoir, from which oil is supplied to the lamp either by gravity or air-pressure within the reservoir.
The bracket B carries and communicates with the oil cup (3, into which the oil is discharged from the tube a. Secured to this cup by an oil-tight joint is the coupling D, made of any suitable metal. /Vhen used on a hand lamp, this coupling would be secured directly to the neck of the reservoir of the lamp. This coupling is provided at its lower end with a female-threaded cavity, into which is secured one end of the valve-seat D. This valve-seat is provided with a bore of approximately the size of the bore of the coupling D, its lower end, however, being restricted in size and of somewhat conical form to form a seat for the valve (Z. the stem 01, which latter passes upwardly through the valve-seat intothe bore of the coupling and is yieldingly held against the under side of theneedle-valve holder E by the spring E, one end of which rests on the contracted lower end of the valve-seat D, while the other or upper end bears against a tension'nut screwed onto the valve-stem d".
From the foregoing it will be seen that when the needle-valve holder is elevated to close the needle-valve the spring elevates the valvestem and closes valve d onto its seat and stops the flow of oil to the vaporizing-tube.
The needle-valve holder E is mounted in the bore of the coupling D, and is provided at its lower end with teeth d extending around the stem, which teeth are engaged by the pinion F, secured on the shaft F. The shaft F is arranged tangentially to the bore of the coupling and passes through the stuffing-box F secured in the coupling. This box F is screw-threaded externally and internally, and is made conical at its inner end, as shown at g, to form an oil-tight joint with the angular shoulder g in the coupling D. The box F is threaded internally for the attachment of the screw-threaded gland F The shaft F passes through the gland and stuffing-box and is packed by the packing F located within the stuffing-box and compressed and held in place by the gland. From this it will be seen that the shaft-opening is securely packed and all danger of leakage of oil absolutely prevented.
The shaft F is provided with a finger-wheel F by which the shaft is turned, and when turned it moves the needle-holder longitudinally.
Secured on the upper screw-threaded end of the coupling D is the vaporizer H. This vaporizer consists simply of a tube provided at its outer end with a plug 71-, having a conical vapor-escape orifice h therein.
Secured within the upper female-screwthreaded end of the needle-valve holder E is the needle-valve I. This valve extends throughout the length of the vaporizer, with Valve (2 is secured to its pointed or tapering end in line with the escape-orifice h of the plug h, and is adapted to be moved longitudinally, so as to open or close said escape-orifice.
The incandescent lamp,which forms no part of my present invention, and which in the present instance is constructed as disclosed in my Patent No. 576,524, granted February 2, 1897, consists of a mixing-chan1ber J airsupply pipes J, the mixed air and vapor tubes or pipes J the burners J and a starting-cup J The vapor as it escapes from the vaporizing tube l-I enters the mixingchamber J. The blast of gas acts as an injector and draws in through pipes J the outside air, which enters the mixing-chamber and is thoroughly mixed with the hydrocarbon vapor. The mixed air and vapor then passes downwardly through the pipes J 2 to the burners J where it is burned under or within the incandescent mantles J The burner or burners are located adjacent to the vaporizing-tube and combined air and vapor pipe or pipes J and under the mixingchamber, and hence these parts of the lamp are, when the lamp is burning, heated sulficiently high to keep the vapor and air at a proper temperature for rapid and complete combustion.
The manner of operating the lamp is eX- ceedingly simple. Alcohol is poured into the starting-cup and lighted, after which the shaft F is turned to lower the needle and oil valves. The oil then rises, by pressure thereon, up through valve-seat into coupling D, up along the needle-valve holder E into the vaporizer H, which latter is being heated by the burning alcohol in the starting-cup. The oil is gradually vaporized and, rising, escapes through orifice h into the mixing-chamber J. The vapor or gas after commingling with the air passes downwardly through pipe or pipes J and as it begins to issue from the burners J is ignited by the flame from the starting-cup.
With the construction described it will be seen that by turning the shaft F in one direction the needle and oil valves are simultaneously opened and by turning the shaft in the opposite direction the valves are closed. Hence in order to extinguish the light it is simply necessary to turn the single shaft in a direction to close the gas-escape orifice and oil-inlet openings.
It is evident that many slight changes might be resorted to in the relative arrangement of the several parts herein shown and described without departing from the spirit and scope of my invention. Hence I would have it understood that I do not Wish to confine myself to the exact construction of parts herein shown and described; but,
Having fully described my invention,what I claim as new, and desire to secure by Letters Patent, is
1. In a vapor lamp or burner the combination with a needle-valve for controlling the discharge of vapor and means for positively opening and closing said valve, of a valve for controlling the admission of oil to the vaporizer, a spring for closing the oil-valve, and a stem connected to the oil-valve arranged and adapted to be actuated by the holder of the needle-valve when the latter is opened and thereby open the oil-valve, substantially as set forth.
2. In a vapor lamp or burner, the combin ation with a needle -valve provided with a holder, and means for positively actuating the valve and its holder in both directions, of an oil-supply-regulating valve provided with a valve-stem, arranged and adapted to be engaged and moved in one direction by the needle-valve holder,a spring encircling the valvestem for closing the oil-valve, and means for adjusting the tension of the spring, substantially as set forth.
3. In a vapor lamp or burner, the combination with an oil-supply and vaporizer, a coupling connecting the two, and a needle-valve provided with a holder, a pinion meshing with teeth on the valve-holder and adapted to positively move it in both directions, of an oilsupply valve provided with a stem arranged and adapted to be engaged and actuated by the needle-valve when moved to open the needle-valve and a spring encircling said valvestem and adapted to close the oil-supply valve, substantially as set forth.
4. In a vapor lamp or burner the combination with an oil-supply and vaporizer, a coupling connecting the two, and a valve-seat detachably secured to the coupling, of an oilsupply valve provided with a stem which extends through the valve-seat, and a spring encircling the stem and adapted to close the oil-supply valve, of a needle-valve provided with a holder, a pinion mounted in the coup ling and meshing with teeth on the holder, said holder being arranged to engage and actuate the valve-stem and open the oil-supply valve when the needle-valve is opened, and to allow the spring to close the oil-supply valve when the needle-valve is closed, substantially as set forth.
In testimony whereof I have signed this specification in the presence of two subscribin g witnesses.
A. W. BRIGHT, G. F. DOWNING.