US334773A - hatfield - Google Patents

Description

(No Model.) 2 sheets-sheet *1. R. F. HATPIELD.'

GAS 1.3RESSUR1'A REGULATOR.

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. R. E. HATEIELD.

GAS PRESSURE REGULATOR. No. 334,773. Patented Jan. 26, 1886.

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ATTORNEYS.

Nrrizn STATES PATENT Orricri.

ROBERT F. HATFIELD,OF NEW YORK, N. Y.

GAS-PRESSURE REGULATOR.

SPECIFICATION forming part of Letters Patent No. 334,773, dated January 26, 1886 Application tiled April 25, 1885. Serial'No. 163,457. (No model.) i

To @ZZ whom it may concern:

Be it known that I, ROBERT F. HATFIELD, of the city, county, and State of New York, have invented certain new and useful I|nprovements in Gas-Pressure Regulators, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the gures.

Figure lis a sectional side elevation of one of myimproved gas-pressure regulators. Fig.

2 is a sectional view of a part of the same,`

taken through the line a; x, Fig. l, and looking upward. Fig. 3 is a bottom view of the casting attached to the bottom of the case of the regulator. Fig. 4 is a sectional side elevation ofthe outer or slotted pipe. Fig. 5 is a sectional side elevation of a modification of my improved gaspressure regulator.

The object of this invention is to provide gas-pressure regulators constructed in such a manner that the iioat-valve and the regulatorvalve shall be entirely independent of each other, so that the float-valve can settle to its seat with only the resistance of the gas-pressure in the inlet-pipe and without having to draw down the regulator with it.

The invention consists in the combination, with the inlet-pipe and regulator having valve apparatus operated by the gas-pressure, of a iioat and attached valve operated by the rise and fall ofthe liquid, and in the construction and combination of various parts of the gaspressure regulator, as will be hereinafter fully described, and then pointed out in the claims.

A represents the case of the regulator, the top of which may be soldered or otherwise firmly secured in place.

In the top of the case A, near one side, is formed a hole, B, through which water or other suitable liquid can be poured into the said case.

In the side ofthe case A is formed an overiiow-hole, B, to prevent the liquid from rising too high in the case when the said case is being lled. The holes B B are closed with screw caps or plugs G C', except when supplying the case A with liquid.

In the center of the top of the case A is formed a pin-hole, B2, so that the air-pressure will be the same within and without the said.

` case.

NVithin the case A is placed the regulator Dwhich is made of the same shape as the said case A, but smaller, so that there will be a space between the walls and the tops of the said case and regulator, as shown in the drawings. The regulator D is made with a close top and an open bottom, and within it is placed the oat E, which is made smaller thanthe said regulator D, so that the said float can move up and down freely within the said regulator. The float E is made in annular form, and to the lower end of its inner wall Vare secured arms F, which pass through slots G in the lower part of the pipe H, the

tops of the said slots G serving as stops for the float E in its upward movement. rIhe lower end of the pipeHpasses through a hole in the center of the bottom of the case A, and is screwed into the enlarged upper part ofthe opening I through the casting J, secured to the bottom of the said case A. The lower part of the smaller portion of the opening I is designed to receive a gas-pipe, and into the upper partof the said smaller portion of the opening I is screwed the inlet-pipe K, which projects upward into the interior of the regulator D. The inner ends of the arms F are secured to the lower end of the pipe L, which fits upon the inlet-pipe K, and slides up and down upon it as the oat E rises and falls.

If desired, the arms F can be made in the form of an annular plate, having apertures through it to receive the arms formed in the lower part of the pipe H by the slots G, as shown in Fig. 2. rIhe upper end, M, of the pipeL is closed, and is made in the form of a truncated cone, to tit upon the beveled upper end of the inlet-pipe K, and serve as a valve to close the said inletpipe K when the float E has nearly reached the bottom of the case A.

In the upper part ofthe pipe L, just below its conical top, are formed openings N, which are wholly uncovered when the float E and pipe L are at the upper end of their movenient, and through which openings the gas passes on its way from the inlet-pipe K to the regulator D. With this construction, as the liquid in the case A lowers and the float E ICO and pipe L descend, the oat-valve Mis gradually closed, and is entirely closed before the said liquid becomes so low that there would be danger of gas escaping, so that the action of the loat-valve is independent of the regulator. The upper end of the pipe H is provided with an inwardly-projecting annular.

ange, having its inner edge beveled to form an opening or seat, O, for the cone-valve P, which is attached to the top of. the regulator D.

In the lower part of the cone P are formed openings Q, through which the gas passes from the inner to the outer side of the said valve P, so that it can pass through the upper end of the pipe H into the regulator D, when the valve P is lowered from its seat or opened.

To the lower edge of thevalve P is secured the upper end of the guide-pipe R, which lits against the inner surface of the pipe H,to cause the valve P to move up and down vertically, and to bring it squarely to its seat O. With this construction the pressure upon the gas will be controlled entirely by the weight of the regulator D, and can be increased or lessened at will by placing weights upon the said regulator or removing them therefrom.

In the casting .I is formed a second opening, S, into the lower part of which is designed to be screwed the pipe leading to the burners, and into the upper part of vwhich is screwed the lower end of .the outlet pipe T, which passes watertight through an aperture in the. bottom of the case A, and projects upward into the upper part of the regulator D.

In the modification shown in Fig. 5, the lower part of the pipe Ii is cut off, so that the float E can be attached directly to the pipe L, the lower end ofthe pipe H serving as a stop for the float E to strike against at the end of its upward movement. In this case the float E and pipe H must be inclosed by a casing, U, to support the pipeH and to prevent gas from escaping through the lower end of the pipe H into the regulator when the loat E is out of contact with the said pipe,asmall hole,V,being formed in the upper part of the pipe H, to equalize the gas-pressure between the pipe H and the casing U, andahole, W. being formed in the lower part of the casing U, for the free passage of the liquid in the case A, so that the said liquid will stand at the same height within and without the said casing U.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with the inlet-pipe and regulator, having valve apparatus operated by the gas-pressure, of an independent float and attached valve operated by thev rise and fall of the liquid, substantially as shownand described.

2. In a gas-pressure regulator, the combination, with the case A, the regulator D, the float E, and the inlet-pipe K, of the pipe L, connected at its lower end with the said ioat, having a closed conical upper end, M, and provided with apertures N at its upper end, and the pipe H, substantially as herein shown and described, whereby the gas will be shut off independent of the regulator by the downward movement of the oat, and the upward ,movement of the said loat will be limited, as

set forth.

3. In a gas-pressure regulator, the combination, with the case A, the regulator D, and the pipe H, having Valve-seat O at its upper end, of the cone-valve P, having apertures Q in its sides, and provided with a guide-pipe, R, sliding upon the inner surface of the said pipe H, substantially as herein shown and described, whereby the gas-pressure is regulated independent of the float, as set forth.

ROBERT F. HATFIELD.

Witnesses:

EDGAR TATE, WILLIAM ALBERT MILLEG.

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