US483517A - Mercurial gas-governor - Google Patents

Description

{No Model.)

V. II. HIGGINS 8v W. D. SIVIITIL MERCURIAL GAS GOVERNOR.

No. 483,517. Patented Sept. 27, 1892.

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UNITED STATES PATENT v OEEIcE.

VAN H. HIGGINS AND WILLIAM D. SMITH, OF CHICAGO, ILLINOIS.

MERCURIAL GAS-GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 483,517, dated September 27, 1892.

Original application tiled .Tune 29, 1891, Serial No. 397,774. Divided and this application led November 24, 1891. Serial No. 412,988. (No model.)

To all whom it may concern.-

Be it known that we, VAN H. HIGGINS and WILLIAM D. SMITH, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Mercurial Gas-Governors, of which the following is a specification.

This application is Iiled as a division of our former application, Serial No. 397,774, iiled June 29, 1891. v

The objects of the construction herein involved are to adapt the governor for service in a chandelier or like fixture, and to provide for the iiow of gas downwardly through the governor.

To the attainment of such ends our invention consists in matters hereinafter described, and particularly pointed out in the claims.

Figure 1 represents in perspective the Inercurial gas-governor having an inlet at the top and an outlet at the bottom. Fig, 2 represents the same in vertical central section on a slightly-larger scale. Fig. 3 represents in vertical central section the device having lateral outlets and shows in elevation a couple of burners with the hollow arms between the same and the regulator broken away for convenience of illustration. Fig. 4 is a section 0n line m oc in Fig. 3.

In each of the two constructions herein shown the shell or body A is provided with a gas-conducting passage which is enlarged within the body at a point to form a receiving-chamber 1, and also expanded to form a centrally -arranged pressure -distributing chamber 2, which is arranged over and separated from the receiving-chamber by a partition 3 and connected with the same bya supply-port 4, which is adapted to be closed by a governor-valve arranged within to open within the receiving-chamber 1.

The shell or body A is at its top provided with an annular mercury-holding chamber, which is arranged over the pressure-distributing chamber and divided by an annular well 5 into the two annular compartments 6 and 7, each .of which contains a suitable quantity of mercury. The stem S of the governingvalve B extends up through the port 4. and also up through a passage 9 in the annular wall 5 and connects with the float C, which consists of an annular inverted cup arranged to dip into the mercury and provide a pressure-chamber 10, which connects with the pressure -distributing chamber 2, substantially as and for the purpose set forth in our said application. provided at Aits top with a centrally-arranged neck 11, which rises from the partition 14 between the mercury-holding chamber and the pressure-distributing chamber and forms a socket for a gas-pipe 12, through which the gas iiows downwardly into the regulator. The body A is also provided with two central bores or openings arranged in vertical line with the portion of the supply-passagethrough the pipe 12 and adapted to receive a short tube 13, one of said openings being formed through the partition 14, which is arranged between the pressure-distributing chamber 2 The shell or body A is also and the mercury-holding chamber, while the other is formed through the partition 3, which is arranged between the chamber 2 and the receiving-chamber 1. The tube 13 extends centrally through the chamber 2 and provides a continuation of the supply-passage through the pipe 12. The portion of the supply-passage formed through the short pipe or tube 13 opens at its lower end into the receivingchamber 1, in which way the gas takes a downward course through the supply-passage formed through the pipes or tubes 12 and 13, and after entering the receiving-chamber iiows upwardly through port 4 into the pressure-distributing chamber 2.

In Fig. 2 the shell or body is provided at its bottom with a neck 11 and with a short open delivery-passage 15, which leads from the pressure-distributing chamber 2 down to the space within said neck. The outlet is therefore at the bottom of the governor, and the neck 11a canv be coupled with any suitable pipe or passage in a chandelier or the like.

In Fig. 3 open outlets for delivering gas from the pressure-distributing chamber are formed by one or more hollow arms 15, which extend laterally from said chamber and support burners 16 and which are provided with cocks 17 between the burners and the chamber.

In Fig.2 theguide or steadypin 18 extends from the float downwardly through .a passage 19a in the annular wall 5, and also through an opening 20, formed between the chamber 2 and the top of a small chamber or recess 21 in the bottom of the shell or body A. vThe stop or head on the lower end of the steadypin is arranged within the recess 21, and said recess is closed by a removable screw-plug 22.

In Fig. 3 the pin is made shorter and has the head on its lower end arranged within a small chamber-recess 23, which extends from the top of chamber 2 up into the annular wall 5 and connects at its upper end with a passage 24, which is formed in wall 5 for the pin 25. The recess 26 below and directly under the steady-pin 25 extends from the bottom of chamber 2 down to and through the bottom of the shell or body A and is closed by a removable screw-plug 27.

With the construction illustrated in Fig. 1 'the gas flows downwardly into the receivingchamber 1, and thence into the pressure-distributing chamber 2 through the normallyopen port 4, and from chamber 2 the gas is conducted downwardly through passage 15 on its way to such burner or burners in the iixtures as may be open. Should, for example, but one burner be open, the pressure within chamber 2 will be transmitted to the pressurechamber 10 within the ioat, and hence the latter will rise and close the valve to an extent to reduce the supply and pressure to a point where the pressure and supply are not in excess of the demand at the burner. Should two burners be opened the pressure-distributing chamber 2 will of course be called upon for agreater supply, and. hence the pressure therein will be reduced. This will necessarily reduce the pressure within chamber 10, and thereby allow the tloat to sink and open the valve to an extent to properly supply both burners, but cut off the supply in excess of the combined demand of the two burners.

In the construction illustrated in Fig. 3 t-he foregoing-described results are also attained, it being observed7 however, that the gas iows from the pressure-distributin g chamber directly into the hollow burner-arms 15, and that while communication between the burners and chamber 2 is normally closed by cocks 17, either or both burners can be placed in open communication with said chamber by opening one or both of the burner-cocks. 1t will also be observed that we can tap through the side of the shell or body A, so as to provide it with more than two laterally-arranged burner-arms 15.

The shell or body A is in both Figs. 2 and 3 provided with a removable cap A', having 65 a centrally-arranged opening for the pipe 1.2. The device, considered as an entirety, lis neat and compact and can be incorporated in a gas-fixture without injury to its appearance, it being seen that by arranging around, as inlet-pipe 12, the annular mercury-chamber and the annular pressure-chamber formed by the float said pipe l2 can be arranged centrally with relation to the shell or body A, and hence that said body will not form an objectionable feature in a gas-ixture.

In Fig. 3 the valve-stem is extended below its valve B, so as to work in a guide-recess 19a in plug 19, and thereby cause the valve-stein to move steadily and work centrally within ports 4 and 9. extended down, so as to work in guide-recesses in the plugs below them, and in such case the 'heads on the pins could, if desired, be omitted.

1. A mercurial gas-governor comprising a shell or body provided with the receivingchamber 1, the centrally-located pressure-distributing chamber 2, arranged over the said receiving-chamber and separated therefrom by a partition having a port which the governor-valve is adapted to close, and one or more open outlets leading from the said centrally-arranged pressure-distributing chamber, so as to supply therefrom a burner or burners, a centrally-arranged supply-passage extending downwardly through the pressure-distributing chamber and opening at its lower end into and serving to supply the receiving-chamber, and an annular mercuryholding chamber arranged around the supplypassage and ovei the pressure-distributing chamber, combined with the open-bottom oat arranged to dip iiito the mercury within the mercury-holding chamber and providing a pressure-chamber which is in open communication with the pressure-distributing chamber, and the governor-valve arrangedv to open within the receiving-chainber and having its stem extended upwardly through the port between the receiving-chamber and pressuredistributing chamber and connected with the float, substantially as described.

2. A mercurial gas-governor comprising a shell or body provided with the receivingchamber 1, the pressure-distributing chamber 2, arranged over the receiving-chamber and separated therefrom by a partition having a port which the governor-valve is adapted to close, the centrally-arranged supply-passage extending downwardly and centrally through the pressure-distributing chamber and opening into and servingto supply the receivingchamber, an open delivery-passage 15, leading downwardly from the pressure-distributing chamber into the neck 11a, and an annular mercury-holding chamber surroundin g the The steady-pins may also be IOO IIO

ing chamber and having an upwardly-extend.- [o ing stem connected with the float, substantially as described.

VAN H. HIGGINS. WILLIAM D. SMITH.

Witnesses:

W. D. MIDDLETON, CHAS. G. PAGE.

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