US35402A - Improvement in self-regulating gas-burners - Google Patents

Description

Patented May 27 "GL W: THOMPSON.V

Gas Regulator.

UNITED STATES GEORGE W. THOMPSO IMPRQVEMENT IN SELF-R Specification forming part of Letters P To all whom it may concern- Be it known that I, GEORGE W. THOMPSON, of New York city, county, and State, have invented certain new and useful Improvements in Self-Regulating Gas-Burners; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

To enable those skilled, in the art to make and use my invention, I will describe its construction and operation.

`In the drawings, Figure 1 is a vertical section enlarged. Fig. 2 is a view in elevation.

The nature ofmy invention consists in constructing automatic regulators for gasburners, with an air-chamber having communication with the outside air over the elastic dia phragm, so that the diameter of the diaphragm may be made much less than in the regulator patented to Leftingwell and Thompson, April 2, 1861, thus diminishing almost entirely the shade cast by the regulator.

There have been many attempts to secure a completely satisfactory selfregulating gasburner, but in all of them imperfections have been discovered by continued use. In the regulator patented to me May 1, 1860, it was found that unless made with a nicety almost unattainable it would not prove entirely satisfactory. In the self -regulating gasburner patentedto Lefngwell and myself jointly it was found that the great diameter of the chamber containing the diaphragm (two to three inches) was an inevitable objection on account of the large shadow thrown by it. In this in vention these and other various objections are overcome, and I have succeeded in making an automatic regulator for gas-burners of simple structure, which surely and effectively regulates the 4ecluable flow of gas at the burner under allA variations of pressure from the main pipe.

A is the lower cylindrical screw-cup, which is made fast to the feed-pipe; a, the packing between the screw-'cup and fixed metallic dia- Y phragm; B, the clamping-ring for securing the diaphragrns in place; C, the air-cup having a smalltube, c, extending up to -the outer surface of the outer shell or cup, I); D,the outer shell inclosing the air-cup C and screwing into the screw-cup A, and to which the burner is attached; E, the fixed metallic diaphragm with l valve-seat o; F, the elastic diaphragm, of leather, kid, or othersuitablernaterial, secured il Enron.

N, or NEw YORK, N. Y.

EGU LATI NG GAS- BURN ERS.

atent No. 35,402, dated May 27, 1862.

by clamping between clamping-ringB and aircup C; G, the conical metallic valve, of graduated weight, and valve-stem, secured to d iaphragm F by nuts screwing on valve-stem, or by the device patented to Lefngwell and Thompson, above mentioned. e are slots or openings in the clamping-ring B for the passage of the gas from the gaschamber 3 to the annular gas-chamber 4;V 1, the air-chamber, communicating with the outside air through the entrance 2 through tube c; 3, the gaschamber; 4, the annular gas-chamber between the air-cup C and the outer cup, D; 5, the opening through the valveseat o, and through which the flow of gas from the feedpipe is regulated by the rise and fall of the valve G.

In the operation of my invention the diaphragm F is of such tension and the valve G of such graduated weight that at the lowest .pressure (say half an inch) the flow of gas shall just equal the consumptive capacity of the burner. As thegas rushes into the regulator it presses up against diaphragm F in proportionto its pressure, thus raising it and the valve G in the same proportion. As the valve G rises with the diaphragm, it diminishes the size of the opening 5 in the valveseat o, so that when the gas is at high pressure the smaller size of the opening 5 will allow no more gas to escape than would escape with a lower pressure and a larger opening. By using the tube c and air-chamber 1, I am enabled to use a smaller and more sensitive diaphragm, the air in said'chamber contributing very materially to the elasticity and efficiency of the diaphragm, as may be p-roven by closing the tube c, when the diaphragm refusing to lift the valve the gas rushes up through and out of the burner much faster than can Vbe con sumed. The course of the gas is indicated on the drawings by arrows.

Having thus fully described the construction and operation of my invention, what I claim as new, and desire to secure by Letters Patent, 1s

The air-chamber l and entrance 2, in combination with an elastic diaphragm operating and operating substantially as set forth, and for the purpose `of regulating the liow of gas at the burner. y

GEO. NV. THOMPSON.

Witnesses:

IsAAo A. BRowNELL, EDW. F. BROWN.

a conical valve, the whole being constructed'

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