US380565A

US380565A - hambleton

Info

Publication number: US380565A
Authority: US
Publication date: 1888-04-03
Anticipated expiration: 1905-04-03

Description

(No Model.) 2 Sheets-Sheet 1.

F. H. HAMBLETON.

GAS PRESSURE GOVERNING APPARATUS.

Patented Apr. 3, 1888.

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(No Model.) 2 SheetsSheet 2.

P. H. HAMBLETON.

. GAS PRESSURE GOVERNING APPARATUS. N0. 380,565. Pa tent'ed Apr. 3, 1888.

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UNTTED STATES PATENT mes.

FRANCIS H. HA MBLETON, OF BALTIMORE, MARYLAND.

GAS-PRESSURE=GOVERNING APPARATUS.

BPECIPICATION forming part of Letters Patent No. 380,565, dated .A.pri13,1888.

Application filed November 3, 1887. Serial No. 254,193. (No modcLl to following is a specification.

The accompanying drawings, with their letters of reference, illustrate my invention, of which-- Figure 1 shows a vertical sectional view of the ordinary form of governor, float, and

valves, and the apparatus for supplying a counter-pressure of gas upon the float of the governor. Fig. 2 shows a top or plan View of an actuating device located in one of the gasmains. Fig. 3 is a diagram showing scalebeam, weight-beam, and transferable weights. Fig. at shows a top view of the apparatus illustrating my invention; Fig. 5, a sectional view of one of the weights. Fig. 6 illustrates mechanism and devices for loading the float by means of a weight.

Viewing Fig. 1, all that part of the apparatus lying to the left and consisting of the inletmain A outlet-main A, valves a a, with their valve-seats, and valve-stem a, communicatingpipe a tank B, and float B are all well known and in common use. The pressure of gas in the initial side, represented by the inlet-pipe A, is greater than the pressure in the outlet- The float B is loaded to open the valves 0; c at a predetermined pressure of gas in the outlet-main, so that when this pressure is exceeded the gas flowing from the main A through the tube a passes up and exerts a pressure under the bell-float B, closing the valves to a and holding them closed until the pressure in the main A lowers sufficiently to be overcome by the load on the float, when the valves a a open, allowing an increased pressure of gas to flow into the main A to shut them off. When the consumption of gas is increased at certain hours of the day, an increased pressure in the outlet-main A is desired in some degree proportional to this consumption. A0-

cording to the present methods, this increased the governor.

pressure is obtained by loading the float B of This load is increased until a pressure in the outlet-main is sufficient to raise the float at some predetermined point. With an increased consumption there is a corresponding increase in the velocity of the cur rent of gas. I therefore utilize the current to increase the load upon the float of the gov ernor,' and consequently the pressure in the outlet-mains.

Viewing Fig. 1, the arrow shows the direction of the current flowing in the main A. Within this main is placed an actuating device made of wood, metal, or other suitable material of any shape or form desired. in the drawings it is shown in the form of a disk, and is marked a This disk is so placed that the current will impinge upon it and actuate it. It need not be large enough to fill the annular space of the main, but should be constructed so that the current may pass by it at the sides or through apertures in the disk, and actuate it by impinging upon it in passing. A convenient way to construct the device is shown in Fig. 1 by enlarging the main through the line at w and making the device of approximately the size of the main. In this way the full strength of the current operates upon the device, and has at the same time ample room to pass around its edges. Constructed in this way, the main may be provided with the guides a a, Figs. 1 and 2, to keep it in position as it travels. As represented in Fig. l, the de vice is at the end ofits downward throw. The highest point reached in its upward movement is approximately at the point where the main pipe begins to enlarge.

a is a rod attached to the device, and, as shown in the drawings, extends upwardly through the pipe, and is packed in any suitable manner to prevent the escape of gas.

a, Fig. 1, illustrates an ordinary watcr sealing box. This form I prefer, as it presents less friction to the working parts.

Upon a suitable base or frame-work, 0, Figs. 1 and 6, I have erected the standard 0, which supports scale-beam c, balanced upon the ordinary knife-edge pivot. One end of the scalebeam is pivoted to the rod a The other end is forked, as shown in Fig. 4, and provided with a cross-head which is pivoted to the rod 0", which connects the beam with the weight 0 This weight responds to the movement of the scale-beam, and is immersed in water placed in the tank 0'. The forked arm of the scale-beam is provided with notches or grooves 0 From the standard 0 projects obliquely an arm, 0, and is arranged so that the forked arms of the scale-beam may pass one on each side of the arm a This arm is also provided with grooves or notches similar to those on the scale-beam, the purpose of which will be fully explained hereinafter. From the scalebeam projects downwardly thearm 0 the end of which is provided with a pointer to indicate the volume of gas passing through the mains. The bed-plate 0 supports a governor similar to the one already described, consisting of the tank D, float d, valve (1, and rod connecting the valve with the float. The valve (1 has its seat in a partition which divides the chest d into two compartments. The pipe d leads from one of these compartments to the initial main A, and the pipe (2* leads from the other compartment to the interior of the tank B of the governor and into the space surrounding the float B. The pipe 61 connects the pipe at with the main A. The pipe d may also be provided'with a gas-burner, d. A standard, E, to which is pivoted the lever 6, forms a track for the wheel 6, which is propelled-by the lever 0 to which it is connected by the link or rod 6 As this wheel rolls upon the lever 6, it exerts more or less pressure upon the governor-float d, according to its position upon the lever.

The weight represented by Fig. 5 I prefer to Construct in the form of a cylinder, which may be opened at one or both ends, and supplied with shot, sand, or other material, so as to vary its weight, as desired. A number of these cylinders are placed or laid in the notches or grooves in the arm 0, and are picked up by the notches or grooves in the forked arm of the scale-beam c as that end is elevated, and dropped again into the grooves on the arm 0 as it descends.

I will now describe the manner in which the devices operate: When the consumption of gas during the day is at its minimum, the current flowing through the main A impinges upon the device a, forcing it down gently, and as the device depresses the end of the scale-beam to which it is connected the wheel 6 rolls upon the lever e, depressing slightly the float d and opening the valve d, allowing the gas which has entered the compartment below the valve from the initial main A to escape into the compartment above the valve and through the pipe d into the tank B, and exert a coun-.

ter-pressure upon the float B, which is held up by the gas from the main A, entering below the floatthrough the pipe a". As the pressure in the initial main A is greater than that in the supply-n1ain A, the governor-float B is loaded to open the valves a a and admit the gas at a somewhat greater pressure into the main A.

While the consumption continues at its minimum, these valves automatically open and close, sustaining the pressure at its minimum rate. As the consumption of gasincreases, the current in the main A flows more rapidly, actuating the device a and forcing it down.

' This movement rolls the wheel 6 farther from the fulcrum of the lever 6, adding more weight upon the governor-float d and opening wider the valve d. This gives an increased weight or load of gas upon the float B. The action continues, varying the pressure as the consumption varies, and regulates the pressure in the supply-mains according to the supply. As the pressure diminishes in the main A, owing to the draft upon it, there must be some means of allowing gas on top of the governor-float to escape. The pipe d which connects the pipe d with the main A, provides an outlet for the gas into that main, if desired. However, the cock in this main may be closed, and the gas may be allowed to escape and burn at d". As the pressure-flow of gas in the main A increases, the pressure upon the device interposed in the current increases in geometrical ratio, so that it is desirable that the scale-beam be actuated and moved approximately in proportion to this increase. To provide for this, I place the adjustably-weighted cylinders in thegrooves upon the projecting arm a. As the forked end of the scale-beam picks up these cylinders in its ascent, each weight so picked up represents a weight greater than its normal value, as its position upon the scale-beam recedes from its fulcrum. As these cylinders may be increased or diminished in weight by changing or emptying, the device may be so regulated as to keep pace with the ratio or increase in the velocity of the current.

Another device may be used for the same purpose, either separately or in conjunction with the scale-weights-for example, such as represented by the water-tank a and weight 0, immersed in the water and suspended from the end of the scale-beam. It will be seen by this arrangement that as the weight ascends its value increases in proportion to the diminished quantity of water displaced. When the two devices are used together, the constant increase in the weight 0 compensates for the period which would otherwise elapse when the scale-beam is passing from one of the adj ustable weights to another.

Instead of a supply of gas to load the bellfioat of the governor, the apparatus maybe made to work by loading the float as shown in Fig. 6. The arm a", projecting upwardlyfrom the scale-beam c, is connected with the movable weight b by the rod 6. This weight moves upon the lever I), suitably pivoted, and the pressure upon the bell-float is greater or less as the weight is farther from or nearer to the fulcrum of the lever. It will be seen by this arrangement that the gas-consumers regulate the pressure of gas in the mains. It will be understood that in a well-regulated gas making and distributing apparatus the pressore of gas in the 'supplymains should be adequate to the consumptiomand as the consumption increases or diminishes this pressure should increase and diminish with it. As the consumption inorea-ses,the currentin the mains increases in velocity, and this increasing and diminishing velocity I utilize to increase and diminish the load upon the governor. As this load is increased,an increased pressure of gas in the mains is required to close the valves; hence as the consumption varies so will vary the current.

What Iclaim, and desire to secure by Letters Patent, is

1. In a gas-pressure-governing apparatus, a governor-float, as B, and means for loading the float actuated and controlled by the current of gas.

2. In a gas-pressure-governing apparatus, a governor-float, as B, and means for loading the same, in combination with a device for actuating the load interposed in the gas-current and operated thereby.

3. In agas-pressure-governing apparatus, a governor-float and means for loading said float, in combination with an actuating device interposed in the gas-current, the pivoted lever a, connected with the actuating device and operated thereby, and with the means for loading the float.

4. In a gaspressure-governing apparatus, a governor-float, as B, and means for loading said float, in combination with a scale and pointer to indicate the volume of gas passing through the mains.

5. In a gaspressure-governing apparatus, a governorfloat, as B, and means for loading said float, in combination with a device for actuating the load interposed in the gas-current and operated thereby,and a device for indicating the volume of gaspassing through the meme.

6. In a gaspressure-governing apparatus, two governor-floats, as B and d, the former arranged to regulate the pressure of gas in the distributingunain and the latter arranged to supply and out OK the load upon B, and automatically operated by the current of gas in the distributing-main.

7. In a gaspres'sure-governing apparatus,an actuating device inserted in the gas'distributing main and operated by the current, in corn bination with a governor, as-D, and governorfloat, as d, and a pivoted lever connected with the loading device of the governor and the actuating device in the gas-current, substantially as described.

8. In a gaspressure-governing apparatus,a governor, as D, provided with a float, a movable weight upon said float, in combination with a lever actuated by the gas-current to move the weight, and a counterbalanclngweight on the end of the lever operating ver-r tically in a column of water, substantially as described.

9. In a gas-pressure-governing apparatus, a governor, as I), provided with a float, as d, an adjustable weight upon said float connected with an operating-lever, the lever actuated by means controlled by the gas-current, in combination with a series of counteracting-weights arranged to be picked up by said lever as the pressure is increased upon the governor'float and discarded as said pressure is diminished.

10. In a gas-pressure governing apparatus, a governor, as I), provided with a float, an adjustable weight upon said float connected with an operating-lever,the lever actuated by means controlled by the gas-current, in combination with a weight arranged to move vertically in a column of water to counteract the movement of the lever, and a valve actuated by the governor-float and located in position to open or close an outlet of gas from the distributingmain, substantially as described.

11. In a gas-pressure-governing apparatus, a governor, D,provided with a float, an adjustable weight upon said float connected with an operatinglev er, the lever actuated by means controlled by the gas-current in the distributingmain, in combination with a retarding-weight connected with said lever and moving vertically in a column of water, and a series of counteracting-weights arranged to be caught up and held by said lever as the pressure is increased upon the float and discarded as the pressure is diminished, substantially as described.

FRANCIS H. HAMBLETON.