US604366A

US604366A - Harry c

Info

Publication number: US604366A
Authority: US
Publication date: 1898-05-24
Anticipated expiration: 1915-05-24

Description

(No Model.)

H. G. CAMPBELL.

- VAPOR STOVE.

Patented May 24,1898.

F W e .zlllllll WITNESSES: 9 OM UNITED STATES PATENT OFFICEQ HARRY O. CAMPBELL, OF LEET, PENNSYLVANIA, ASSIGNOR TO THE STANDARD OIL COMPANY OF NEW YORK, OF NEW YORK, N. Y.

VAPOR-STOVE.

SPECIFICATION forming part Of Letters Patent N0. 604,366, dated May. 24, 1898.

Application filed October 14, 1897. Serial No. 655,108. (No model.)

' To all whom it may concern:

Be it known that I, HARRY O. CAMPBELL, 1

a citizen of the United States, residing in Leet township, Allegheny county, State of Pennsylvania, have invented a certain new and useful Improvement in Vapor-Stoves, of

hydrocarbon for fuel which is converted into vapor at the burners by insuring the extinguishment of the flames as a condition precedent to the refilling of the tank or reservoir with gasolene.

In carrying out my invention I apply to the ordinary stationary tank or reservoir mounted upon the stand-pipe of the stove or otherwise a suction-plunger and check-valve so arranged and so connected with associated parts that the filling of the tank will necessarily be preceded by an upward movement of the plunger, which will draw the gasolene upwardly in the stand-pipe and away from the burners sufficiently to extinguish the flames. The plunger for this purpose is located in a cylinder connected with the standpipe and is itself connected with some movable part the movement of which is necessary as a condition precedent to the filling of the tank. I prefer to employ a filling can or reservoir within the tank which, similar to the reservoir in a student-lamp, has a checkvalve in its bottom, through which it is filled, which check-valve is opened by a suitable projection when the inside reservoir is inserted in the tank. The tank is provided in its bottom with a cylinder, which is a continuation of the stand-pipe, and a plunger with a check-valve is carried by a tubular extension from the lower end of the reservoir. This plunger works in the cylinder in the bottom of the tank and when in the normal position of rest has its check-valve opened by the striking of a stemcarrying said valve on a perforated plate at the bottom of the cylinder. This same stem extends through the tubular support and operates the check-valve in the bottom of the reservoir. By this arrangement the withdrawal of the reservoir from the tank acts first to close bot-h checkvalves and afterward to cause the plunger to exert a suction in' the cylinder sufficient to' draw the gasolene up in the stand-pipe and extinguish the flames at the burners; In the accompanying drawings, forming part hereof, Figurel is a central vertical section of a tank for a vapor-stove embodying my improvement and showing the parts in position to open the check-valves; and Fig.

2 is a sectional view,on a larger scale,through and connected with the cylinder 0 by the coupling 0.

In the bottom of the reservoir Bis screwed a filling-plug E, having a. check-valve F. This is the usual device heretofore employed, and has been arranged to operate in conjunction with a projection on the bottom of the tank, which opened the check-valve when the reservoir was inserted in the tank. Connected with the filling-plug E, and preferably in one piece therewith, is a downward tubular extension G, having lateral openings e and carrying at its lower end a plunger H, provided with a leather washer h or other suitable device for making a suction-tight fit with the interior surface of the cylinder 0. The plunger H has an open center formed to seat a checkvalve I, which works in a yoke 2' above the plunger. A stem K is secured to the checkvalve I and extends upwardly therefrom through the extension G, striking at its upper end the check-valve FL The stem K also extends below the check-valve I and below the Voir B through the openings 6 and fills the ,lower end of the tank A and the cylinder 0,

from which it runs into the stand-pipe D and to the burners.

When it is desired to renew the supply of gasolene in the reservoir, the cover a is opened and the reservoir is lifted out of the tank by its handle I). The first effect of the upward movement is to close the. check-valves F I, thus preventing the escape of anymore gasolene from the reservoir and also closing the opening through the plunger. The further upward movement causes the plunger to produce a suction in the cylinder 0, which draws up the gasolene in the stand-pipe, withdrawing it from the burners, with which the stand pipe is connected, and extinguishing the flames. After the reservoir is removed from the tank it is filled in the usual way through the opening in its bottom by the unscrewing of the filling-plug E. It will thus be seen that the extinguishment of the flames is accomplished automatically by the withdrawal of the reservoir from the tank, which operation must be performed before the supply of gasolene in the reservoir can be renewed or before the reservoir can be removed from the tank for any purpose.

In returning the parts to their normal positions the check-valve I will be elevated and will prevent the imposition of an objectionprovided with an upwardly-opening check valve working in said cylinder and acting to withdraw the gasolene from the stand-pipe, means for holding said check-valve positively open in its lowered position, and a connection between said plunger and a part which is moved as a condition precedent to the filling of the tank, substantially as set forth.

2. In vapor-stoves, the combination witha stand-pipe and tank, of a cylinder connected with the stand-pipe andtank, a plunger provided with an upwardly-opening checkvalve working in said cylinder and acting to withdraw the gasolene from the stand-pipe,

a coupling at the lower end of said cylinder with which the stem of said check-valve engages whereby the check-valv'e will be maintained positively opened in its lowered position, and a connection between said plunger and a part which is moved as a condition precedent to the filling of the tank, substantially as set forth.

3. In vapor-stoves, the combination with a stand-pipe and tank, of a reservoir or can within the tank, a plunger connected to said reservoir or can and acting by its'movement to withdraw the gasolene from the stand-pipe and carried by said interior reservoir, whereby the withdrawal of the reservoir from the tank will cause the plunger to withdraw gasolene from the stand-pipe and extinguish the flame at the burner, an upwardly-opening check-valvefor opening a passage through the plunger when the parts are in the normal condition of rest, and means for holding said check-valve positively open in its lowered position, substantially as set forth.

. 4. In vapor-stoves, the combination with a stand pipe and tank, of a cylinder between the stand-pipe and tank, a reservoir or can within the tank, a check-valve in the bottom of the reservoir, a plunger and check-valve carried by the interior reservoir and moving in said cylinder, and means for opening both check-valves when the reservoir is inserted in the tank, substantially as set forth.

5. In vapor-stoves, the combination with a stand-pipe and tank, of a cylinder between the stand-pipe and tank, a reservoir or can within the tank having a filling-plug with a check-valve, in its bottom, an extension from said filling-plug carrying a plunger and checkvalve at its lower end working in said cylinder, and a valve-stem for opening both checkvalves which strikes an obstruction at the lower end of said cylinder and opens the check valves when the interior reservoir reaches its position of rest in the tank, substantially as set forth.

This specification signed and witnessed this 9th day of October, 1897.

HARRY C. CAMPBELL.

Witnesses:

EUGENE CoNRAN, J NO. R. TAYLOR.