US38561A - Improvement in gas-regulators - Google Patents

Description

AR. CORNELIUS. Gas Regulator.

No. 33,551. Patented may 19,1863,

l-lllr N. PETERS, Phnwumugnpn". washingmn, n. c,

UNITED STATES PATENT OFFICE.

ROBERT CORNELIUS, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN GAS-REGU LATOFLS.

Specification forming part of Letters Patent No. 38,561, dated May 19,1863.

of the city of Philadelphia, and State of Pennsylvania, have invented a new and useful Imi provement in Gas-Regulators; and I do hereby declare the following to be a full and exact description thereof, reference being had to the annexed drawings, making a part of this specication, in which* Figure l is a top view of the regulator. Fig. 2 is a view from below. Fig. 3 is a view ofthe inside, 'when the brass cap is removed and the puppet-valve removed. Fig. 4 is a section showing the relative position of the several parts. Fig. 5 represents the place of entrance of the supply-pipe and the point where the regulator is attached.

Heretoiore gas-regulators have been constructed depending on dies of metal, which expanded and contracted under the varying pressures of gas, and thus closed or opened the supply-apertures in the regulator.

My improvement consists in the employment of a thin mica disk in connection with a gas-chamber, which mica disk expands under an increased pressure of gas and closes an aperture, and by its elasticity opens the aperture when the pressure becomes diminished. I have also discovered that by placing the small gas-regulators, when used with a single bracket, between the bracket and the outlet of the supply-pipe, the advantage is obtained that there is a great ecomomy and ease of application of the regulator. The regulator is sufficiently removed from the burner to prevent it from being deranged by the heat of the burner, and the length of the tube of the bracket acts to equalize the flow after the gas passes the regulator and before it reaches the burner.

y In Fig. 3 is shown theinternal arrangement of my regulator. v

A represents the point of attachment of the regulator to the outlet-pipe.

My regulator consists of a cylindrical chamber, made of brass, having an aperture of entrance for the gas at A, and one of exit into the bracket at B. The interior of the chamber C is a small raised valveseat, D, which is attached to and forms the termination of the exit-passage E, through which the gas passes. On this valve-seat rests a small puppet-valve, F. (Shown detached in Fig. 3.) This puppet-valve has a long stem extending through the disk of the valve. The longer portion of the stem G passes through a small aperture or guide in the tube-seat and rests upon the mica disk H H, which forms the bottom side or base of the cylindrical chamber. rPhe top of the cylindrical chamber is closed by a metallic screw-cap, I. Then there is no gas entering through the regulator the puppet-valve F is then at its greatest distance above the valve-seat.

The operation of the gasregulator is as follows: The gas enters through the interior of the tub, A into the chamber G, and then around the puppet-valve F, and through the aperture at K on the valve seat, through the tube B into thebracket. As the pressure of gas in the cham ber C increases, the gas presses the mica disk H H downward in proportion to the increased pressure. As the mica disk is thus pressed down it permits the valve-stem G, which rests upon the center of the disk, to descend and thus permit the valve F to descend toward the valve-seat F, and thus partially closes the aperture K and checks the passage of the gas through the aperture and the tube B. When the pressure of the gas diminishes, the elas ticity of the mica disk causes the disk to return to its former position, and thus press up the stein G andraise the valve F farther from its seat, and increases the area of escape through K. The valve-stem G is screwed into the valve F, so as to permit of the adjustment of the length of stein G. As the valve-stem is increased in length the area of discharge is increased. The mica disk is made very thin-about the one three-hundredth part of an inch. I have found that thin mica plates possess the advantage of reg ular and permanent elasticity, and are not liable to be eifected by variable temperature. The mica disk H H rests against a small rim or seat, and is secured by a ring on the outside. I place a little white lead between the mica disk and the seat or rim, which secures a gas-tight joint.

The arrangement of the puppet-valve when described is advantageous also in that the The employment,in gas-regu1ators,of athn pressure of the main supply upon the disk H mica disk or plate, which operates by its elas- H and the puppet-valve is in the same directieity to regulate the passage of gas.

tion and at the same time. ROBERT CORNELIUS.

Having thus described my improvement, Witnesses:

what I claim, and desire to secure by Letters ROBERT C. CORNELIUS,

Patent, is- CHARLES B. HELFlNsTEIN.

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