US731255A - Gas-regulator. - Google Patents

Description

No. 731,255. PATENTED JUNE 16, 1903. G. 0. WILSON. GAS REGULATOR.

APPLICATION FILED 0013.20, 1902.

N0 MODEL.

WITNESSES INVENZOR.

yaazo/w w B A TTORNEY UNITED STATES Patented June 16, 1903.

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GAS-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 731,255, dated June 16, 1903.

Application filed October 20, 1902. Serial No. 128,087. (No model.)

To all whom it may concern:

Be it known that I, CLARENCE G. WILSON, a citizen of the United States, residing at Alameda, in the county of Alameda and State of California, have invented certain new and useful Improvements in Gas-Regulators, of which the following is a specification.

My invention relates to gas regulators which are used for controlling the flow of gas-supplies from city mains under varying pressures for the purpose of causing the gas to be supplied to the burners at a uniform pressure.

The object of myinvention is to provide a device of this character which shall be cheap and simple in construction and accurate in USC- My invention therefore resides in the novel construction, combination, and arrangement of parts for the above ends hereinafter fully specified, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical section of my improved device. Fig. 2 is a detail side elevation of the valvestem, the valve, and the connection between them; and Fig. 3 is a vertical section showing a modified form of valve.

' Referring to the drawings, 1 represents a casing having partitions 2 and 3, formed inte gral with the interior of said casing and spaced apart to form a pressure-chamber. 4 represents a bearing formed integral with the upper partition and having a bore 5 of uniform diameter therein. In said bore is received a valve-stem 6 of sufficiently less diameter to move loosely therein. Upon the upper end of the valve-stem is secured a float 7, havingits top depressed centrally, as shown at 8, and having a depending annular flange 9, said flange extending into a trough 10, formed by the outer casing 1 and a circular wall 11 upon and integral with the upper partition 2. The central depression in the top of the float is of less diameter than the said wall 11, so as to be received within it when the float descends.

The bearing 4. extends a sufficient height above the upper partition to impinge against the lower nut 12 on the valve-stem when the float descends at about the same time that the lower edge of the flange 9 reaches the bottom of the trough 10 and the top of the float reaches the top of the wall 11. Said bearing 4 extends bothupwardly and downwardly from said upper partition, thus forming a longvbearing for the valve-stem and maintaining said stem substantially upright,

while at the same time the stem works sufficiently loosely therein to avoid friction.

The lower partition 3, which, as before stated, is formed integral with the casing, has a central aperture 15, surrounded by a down wardly-extending annular flange 16, the lower edge of which is formed with a conicalshaped valve-seat 17. The valve 18 is attached loosely to the stem by means of a link 19, engaging an eye 20, attached to said valve. Said valve may be formed with an outer shell 21, of metal, filled with a body of lead, solder, or other metal, as shown at 22, or it may be in one piece, as in the modification shown in'Fig. 3. The upper surface of said valve is convex in shape, so as to accurately close the opening in the lower partition even though the valve be slightly tilted from a central position. Thus a slight tilting of the float will cause no change in the accurate seating of the valve.

23 represents a red ucing-collar, to which the inlet-pipe 24 is attached, and 25 is the neck, to which is attached the outlet-pipe 26.

Within the central depression of the float are placed a number of rings of metal, (shown at 27,) the weight of which serves to adjust the weight of the floatto the pressure at which it is desired to deliver the gas to the burners. Within said rings are placed any desired number of small balls or shot 28, by means of which the pressure given by the float is ad justed with the greatest accuracy. By placing the rings or disk on the outside and the shot as close as possible to the middle tilting of the float and consequent friction is avoided.

The valve itself is made of sufficient weight to yield the minimum pressure that would ever be needed, and the rings 27 and shot 28 are added to increase the pressure as may be desired. It will be understood that, as in the usual practice, the trough 10 is filled with mercury to a sufficient height to form a seal around the lower edge of the float. By connecting the valve to the stem with a link 19, having a loose connection at its ends both with the valve and the stem, the valve is permitted not only to swing, but also to shift laterally with reference to the stem, thereby insuring the greatest freedom of movement possible to allow it to fit within the valveseat.

I claim- 1. In a device of the type set forth, acasing, a pair of spaced partitions formed integral with the interior of said casing, an elongated bearing of uniform internal diameter throughout formed integral with the upper of the said partitions, an upwardly-extending flange or Wall formed integral with said upper partition and spaced from the interior of the easing to form a trough, a valve-seat formed on the second partition, an outlet communicating with the space between said partitions, a valve-stem carrying a valve on its lower end, and a float attached to said stem and having a depressed top to be received within the interior of the said wall, and havingadepending flange adapted to be received between the said wall and the interior of the casing, substantially as described. v

2. A device of the type set forth, consisting of a casing, an upper and a lower partition formed integral with the casing and forming the upper and lower walls of the chamber from which the gas is discharged, said lower partition having a depending rim or flange terminating in a valve-seat formed integral therewith, an elongated bearing formed integral with the said upper partition, a wall carried by the'said upper partition between the bearing and the casing forming a trough between itself and the interior of the casing, a valve attached to the lower end of said stem, and a float carried by the valve-stem, substantially as described.

3. A device of the type set forth comprising a casing shaped to form a bearing for the valve-stem and also a seat for the valve, said valve-stem and valve, afloat attached to the upper end of the stem, said casing having also a trough to receive the edge of the float, said float having a centralflat depression and a substantially vertical annular wall around said depression, rings in said depression for adjusting the weight of the float, and shot or small balls within the rings for providing a more accurate adjustment, substantially as described.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses.

CLARENCE O. WILSON.

Witnesses:

FRANCIS M. WRIGHT, BESSIE GORFINKEL.

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