US380025A - Edwaed k dickebson - Google Patents

Description

(No Model I E.N.I'DIG-KERSON, Jr I REGULATOR FOR PUMPING ENGINES. I

No. 380,025. Patented Mar. 27',

7 UNITED STATESJ1 PATENT TOFFIGE;

EDWARD N. DIOKERSON, JR., OF NEW YORK, N. Y.

REGULATOR FOR PUMPING-ENGINES.

SPECIFICATION forming part of Letters Patent No. 380,025, dated March 27, 1888. Application filed May 21, 1887. Serial No. 238,965. (No modell) To all whom it may concern:

Be it known that I, EDWARD 'N DIoKER- SON, J r., of the city, county, and State of New York, haveinvented a newand useful Improvement in Automatic Regulators for Pumping-Engines, of which the following isa full, true, and exact description, reference be ing had to the accompanying drawings.

Pumping-engines are frequently employed to fill elevated reservoirs to a determined height. Inorder to determine when the pump has sufficiently'filled such elevated reservoir it is ordinarily customary to have an observer when the pump will be automatically stopped without the intervention of an operator. I-

accomplish this result by means of mechanism connected with the supply-pipe to the reservoir alone without employing any mechanism to signal back from the reservoir to the pump when the reservoir is filled to the predetermined height.

My invention is'applicable to any engine which can be automatically stopped by turning off a valve or damper or similar contrivance.

I have shown my apparatus as connected with an ordinary house-service system; but it is applicable to any other system having the same conditions.

In my drawings similar letters refer to similar parts.

Figure 1 shows a general view of my system; Fig. 2, a view and modification of my regulating device; Fig. 3, a view of the same at right angles to Fig. 2.

Arepresents a pumping-engine. As shown, this may be a steam or gas engine. This forces a supply of water through the supply-pipe D to the reservoir 13. At the determinedheight in the reservoir a valve is provided which antomatically closes the outlet of the delivery pipe D. As shown, a float-valve, (his employed. Connected with thewater-supply, between the pump A and the float-valve O, is a relief-valve, E. This is shown as mounted on the pipe N. This valve, as shown, has an ordinary safety-valve with couuterbalancingarm F. The overflow from this safety-valve is connected with the flexible pipe G; This pipe communicates with the m'ovingbucket H. This-bucket is carried on flexible cord T,

passing over rollers V- V. .The bucket H is overcounterbalanced by.:the weight M, attached to the lever L, which operates the valve K. This valvecontrolsthe supply of gas in the supply-pipe S, driving the engine. Of course if it were a steam-engine the steam would be similarly cut off. The bucket H may be provided with a siphon-pipe, J, whichwill emptyit slowly after it'has been filled. This may be dispensed with in practice, if desired.

In the modification shown in Figs. 2 and 3 the bucket and cord are dispensed with. The same relief-valve is shown, but its armF has an end cut at an angle or beveled, as shown. The valve-lever -L rests ordinarily upon the fixed support P; but if it be thrown sidewise it will slip off the end of the support and drop into the position shown in Fig. 3. In practice but a very small lap is allowed for the leverarm L upon the support 1?. When the arm E is raised, its inclined end forces the leverarm L away from its support 1?, and it drops, as shown, thereby shutting off the gas-supply as before. By this arrangement it is necessary 8 to have the water-supplypipe and gas-supply pipe in reasonable proximity, whereas by the arrangement shown in Fig. 11 they may be widely separated, if desired.

The operation of my apparatus will now be readily understood. The pump A being put in operation, the water is forced through the r supply-pipe D and float-valve G into the reservoir B, the relief-valve being closed with v a force sufficient to cause the water to flow 5 through the pipe 'Dwithout opening-it, provided the valve 0 is opened. When, however, the valve O is closed, the continued action by the pump puts such a pressure upon the water within the pipe D that the relief-valve E is I raised and waterflows into the bucket H, which thereby overcomes the weight of the counterbalanceand falls a determined distance, thereby closing the valve K and stopping the engine. Suitable stops, of course, are provided to limit the motion of the bucket H. The operation of the relief-valve both stops the pump by filling the counterbalanced bucket H and also serves as a relief to prevent the breaking of the pipe D or some part of the pump, which otherwise might occur. When the bucket H has been filled, the siphon J, if pres cut, will gradually empty it until the counterhalanceM overcomes the weight of the bucket, when it will rise again and the pump will be in a position to start. Ordinarily the pump is started only by the intervention of an intelligent operator. Inthis case it is not important to have the siphon J, for the bucket H may be emptied by the operator before starting the engine.

The operation of the device shown in Figs. 2 and 3 is substantially the same. The rising of the lever F closes the valve K. It is not necessary to employ a lever reliefvalve, though I prefer that form.

In case the relief-valve E should leak, a small escape may be allowed in the bucket H, thereby preventing the filling of the bucket until the relief-valve is raised.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination of a pumping-engine and supply-pipe leadingfrom the same, a

valve in said pipe closing the same, and a relief-valve in said pipe between the pumpingengine and said first-named closing-valve, and mechanism whereby the operation of the relief-valve applies the power to stop the pump, substantially as described.

2. The combination of i a pumping-engine and supply-pipe leading from the same, an automatic valve closing said pipe at a predetermined point, arelief-valve in said supply-pipe between the pump and said first-named valve, a bucket controlling the power-supply of the engine, and mechanism whereby the escape of the water from the relief-valve fills the bucket and arrests the engine, substantially as described.

3. The combination of the pump A, pipe D, float-valve O, relief-valve E, bucket H, cord T, counterbalanced lever L, valve K,'and supply-pipe S, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

E. N. DICKERSON, JR.

Witnesses ANTHONY GREF, H. COUTANT.

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