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No . .
PATENTED NOV. 18 1862. J. TAYLOR & R W. BROWN.
DOBEREINER HYDROGEN LIGHTER
UNITED STATES PATENT OFFICE.
OHN TAYLOR AND R. W. BROWN OF WESTERLY RHODE ISLAND. IMPROVEMENT IN THE DOBERSINER HYDROGEN LIGHTER.
Sdecificatiou forming part of Letters Pater.t No. dated November 18 18''2
To all whom it imay eoncerm: ity within it thus closing the openings of both Be it known that we JOHN TAYLOR and Rus- the holes or passages e' and e' and preventing the escape of gas through the same. A lever I is provided for lifting the plunger F and opening the holes e' and e' to permit the flow of gas from the bell. A stop-screw i is provided to so gage the action of the lever I that while the pressure of thespring H is so far relieved as to allow the holes e' and e` to be opened and gas to pass around from one to the other the rubber G cannot be sufficiently lifted to relieve its pressure upon the lip e so as to permit the escape of gas into the chamber e. The spring H is provided with a yoke h and screw h' whereby it may- be tightened to pro-duce the required pressure to cause the rubber to tightly close both holes; e' and e'. The gas escaping from e'l. impinges upon a piece of plating. sponge K in the ordinary manner and is thereby ignited and maybe used to ignite a splinter of wood or other object placed therein.
In preparing the valve G we coat it with metallic bronze-powder to prevent it from sticking to the surface of the valve-seat in the following manner: We first burn the surface of the rubber so as to. cause it to firmly adhere to the socket in F and then place it therein. The portion which remains exposed is covered with bronze-powder which adheres to the surface and forms a metallic coating which while it effectually prevents any adhering of the rubber to the• valve-seat in no way interferes with the elasticity of the rubber. This coating is represented in the drawings by a thin yellow line.
As hydrogen-igniting apparatus has been heretofore constructed the cock by which the gas was allowed to flow to the platina sponge was very liable to wear and become leaky when the gas was constantly escaping and the use of the apparatus thereby rendered expensive and annoying.
By our improved construction the following advantages are secured: The valve may always be kept tight with no perceptible wear. The rubber fitting always on the lip e' prevents any escape of gas except through the passage
and the strength of the spring H is easily adjusted by means of the screw h' to cause the . rubber G to tightly close one or both the hole e' or e'. It will be seen that by this arrange ment of the holes and valves a double securit;
SELL W. BROWN of Westerly in the county of Washington and State of Rhode Island have invented certain new and useful Improvements in Hydrogen Lighters for Domestic and other Purposes; and we do hereby declare that the following is a full and exact description there-of reference being had to the accompanying drawings in which
Figure 1 is a vertical section of our invention; and Figs. 2 and 3 are magnified sections of the valve Fig. 2 showing the valve closed and Fig. 3 the same open.
Our invention relates to the construction of the valve whereby a very simple efficient and cheap valve is secured which is not liable to become leaky by use.
To enable others skilled in the art to make and use our invention we will proceed to de-scribe its construction and operation by the aid of the drawings and letters of reference thereon the same letters referring to like parts in all the figures.
A is a jar of glass or earthenware having a lid B secured thereto. From the under side of this lid is suspended a bell-shaped glass C extending nearly to the bottom of A as represented and within the bell C is suspended a piece of zinc D. A mixture of sulphuric acid and water is poured into the jar A and rising in the bell attacks the zinc thus generating hydrogen gas which collects in the bell and drives out the diluted acid until the zinc is no longer exposed to its action when the formation of gas ceases. These parts and their action are similar to those heretofore known.
In the lid B and extending into the bell C -is a nozzle E of the form represented. A chamber e is bored in the rear end as represented and a passage e' leads therefrom to the interior of the bell. Another passage e2 leads from this chamber to the front of the nozzle as represented and the openings to these two pas-sages are near the center of the chamber e. In the base of this chamber and surrounding the opening of the two passages e' and e' is an annular lip or flange e'. A plunger F is fitted to play in the chamber e and to receive on its end a piece of india-rubber G. - A spring H forces the plunger toward the base of the chamber and causes the rubber G to tightly em-brace the lip or flange e' and to enter the cav-
2 36.97 It
against leakage is obtained for if either of these holes be stopped the passage is effectually closed even if the other be left open. The valve G is very certain to` close one even if the pressure of the spring- be not quite sufficient to close both.
Our valve is self closing and cannot be left open for the escape of gas like the ordinary cock. This is an essential advantage in domestic use Where inexperienced persons are liable to use the apparatus.
By the coating of the rubber valve G with bronze-powder all liability to derangement from adhesion of the valve to its seat is avoided.
The nozzle B au d the other exterior parts may be made in various forms or designs to please the taste of the maker or customer without interfering with the proper action of our inven tion and the whole may be inclosed in a case to avoid the danger of breakage if desired.
Having now fully described our invention what we claim as new and desire to secure by Letters Patent is--
1. The arrangement of the two openings e and e2 and the surrounding lip e' or its equivalent with the elastic valve G as and for the put pose herein set forth.
2. The employment of the adjustable spring H in combination with the above for the purpose described. .
3. The valve herein described composed of india-rubber and coated with fine bronze-pow der or its equivalent for the purpose set forth. In witness whereof we have hereunto set our hands.
JOHN TAYLOR RUSSELL W. BROWN. Witnesses:
GEO. S. CoY WILLIAM P. Coy.