US887406A - Automatic boiler-feeder. - Google Patents

Description

PATENTED MAY 12, 1908.

A. F. LOVERING. AUTOMATIC BOILER FEEDER.

APPLIOATION rmnn DEC. 22, 1906.

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No. 887,406. PATENTED MAY 12, 1908. A. P. LOVERING.

AUTOMATIC BOILER FEEDER.

APPLICATION FILED 1120.22, 1908.

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ARTHUR F. LOVERING, OF FRAHINGHAM, MASSACHUSETTS.

AUTOMATIC BOILER-FEEDER.

Specification of Letters Patent.

Patented May 12, 1908.

Application filed December 22, 1906. Serial No. 349,167.

To all whom it may concern:

Be it known that I, ARTHUR F. LOVER- ING, a citizen of the United States, residing at Framingham, in the county of Middlesex and State of Massachusetts, have invented a certain new and useful Automatic Boiler- Feeder, of which the following is a specification.

My invention relates to a device for operating valves in connection with the water supply for a steam boiler, where the boiler is fed from a source of supply having suflicient force to flow into the boiler when the feed gate is open. This device, which I shall call the automatic feed water controller, is not intended to supply the power for forcing water into the boiler, but only to control the valve or entry gate; opening the valve when the water in the boiler is low enough to need a new supply and closing the valve when a sufficient supply has been admitted to last for a time.

The device is primarily intended to control the valve regulating the water supply to steam boilers, but may be used for other purposes in connection with steam boilers, where it is desirable to have a valve open and close automatically.

I obtain the objects sought by the mechanism illustrated in the accompanying drawing in which the valve M, is the opening and closing gate; and is so proportioned as to open or close in any position with nearly uniform ease regardless of what pressure is maintained inside the valve itself. Therefore a small stem is all that is necessary for opening and closing the gate from the outside.

A yoke with a lever attached and working over a fulcrum is attached to the valve M, as shown in the drawing. On one end of this lever is attached a weight G, with a set screw so that it can be adjusted as desired. The op osite end of the lever is attached to the hol ow weight 0 by a short connecting rod. The hollow weight 0 is made in two parts and has a seam in the center it must be steam tight and strong enough to resist boiler pressure. To this weight 0 is at tached two pipes H and X which must be made of some kind of flexible material and also strong enough to resist boiler pressure. Pi e H is attached to the boiler or water co umn between A and B as indicated on drawing, and it is connected with the Weight 0 through the top near the air cock 0. Pipe X is attached to boiler or water column near its base, as shown in drawing, and is connected with weight 0 through its bottom. Both pipes H and X are held firmly in place by a fixture attaching them to the boiler or some other stable part of the works just above the valves D and E. All joints in pipes and connections must be steam tight.

Manner of operation-After steam has been raised in the boiler, close Valve D in pipe as but leave valve E in pipe H open; then open air cock C but when steam appears close it again and open valve D in pipe X. Now open the main water gate F in the feed pipe just back of the balanced Valve M and you have the automatic feed water controller in operation. If the water in the boiler or water column is down to the point indicated by B, as shown in drawing, the weight 0 will remain light and empty; but valve M will be open. When sufficient water has passed into the boiler to raise the water in the boiler to the point indicated byA the entrance to ipe H from the water column or boiler wi be closed by water. This will prevent steam from entering the hollow weight 0 and the steam already there will immediately condense causing it to be filled with water from the boiler. The weight 0 being thus loaded; will now overbalance weight G and pressing down the opposite end of the lever attached to valve M close that valve and stop the water. The valve M will now remain closed until the water in the boiler 01' water column again leaves the entrance to pipe H uncovered when the water in the hollow weight 0 will immediately be discharged into the boiler and steam taking its lace. The hollow weight 0 will now be over alanced by weight G, and the weight 0 going up as G goes down will open valve M and admit more water to the boiler. Valve M will now remain open until the boiler is again filled up to the point indicated by A when the operation will repeat itself and so continueiindefinitely.

Having thus described my invention, its construction and operation, my claim is In an ELUtOl'IlflillOibOilGI feederthe combination with a boiler, of agwaterzsupplyflpipe, a valve arrangedgtherein, a valve stemga lever connected to the stem, a'QweightEarranged at one end of the lever and tendin to hold the valve in open position, a hol ow weight located above the opposite end of the lever, a steam pipe, and a water pipe leading from the boiler to said hollow weight, the steam pipe being connected approximately at the water line, and the water pipe below the Water line of said boiler, said pipes being ing means to permit vertical movement of the weight, the steam and Water pipes being 5 of suilicient length to freely flex adjacent the points at which they are bent to thereby perl mit rise and fall of the Weight substantially as described.

In testimony whereof I have aflixed my 20 signature, in presence oi two Witnesses.

ARTHUR F. LOV ERIN G. Witnesses:

EDITH A. Dow, Crnis. S. RECORD.

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