US701038A - Feeder. - Google Patents

Description

no. mmss. Farmen May 27, |902.

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GEORGE MICHAEL HILGER, YOF CHICAGO, ILLINOIS.

FEEDER.y

SPECIFICATION forming part of Letters Patent No. 701,038, dated May 27, 1902.

` Application filed November 19, 1901. Serial No. 82,886. (No model.)

To all whom t may concern.'

Be it known that I, GEORGE MICHAEL HIL- GER, a citizen of the United States, and a resident of Chicago, in the county of Cook and State oi' Illinois, have invented a new and Improved Feeder, of which the following is a full, clear, and exact description.

The invention relates to devices for feeding a liquid compound into the feed-water of a boiler; and its object is to provide a new and improved feeder for use on-boilers, open feedwater heaters,.and the like and'which is simple and durable in construction and arranged to feed the liquid compound drop by drop into the feed-water to prevent the formation of scales in the boiler.

The invention consists of novel features and forming a part of this specification, in whichl similar characters of reference indicate corresponding parts in both views.

Figure lis a sectional side elevation of the improvement as applied to a boiler, and Fig. 2 is an enlarged sectional side elevation of the regulating-valve.

A reservoir A for containing a liquid compound B is held on the upper end of a pipe C, tapped into the top of a boiler D, an extension E leading from the lower end of the said pipe C a distance below the water-level of the boiler and close to the point where the feed-water enters the boiler. of the reservoir A is provided with a pipe F, containing a valve F and supporting a lling-cup G for filling the compound B into the reservoir A, as hereinafter more fully described. The pipe F is connected below the valve F' by a brandli pipe H' with an equalizing-pipe H, having a valve H2 and connected to the steam-compartment of the boiler D, the said pipe H having its'lower end HS connected with the pipe C between valves I and I', of which the valve I is a wash-out Valve and the valve I' is a shut-oli valve. The pipe C above the wash-out valve I is connected by a small pipe J with the body K of a regulating-valve for controllingthe amount of the compound l owing from the reservoir A The upper endinto the pipe C and down the pipe E into the feed-Water contained in the boiler D. The

. regulating-valve is provided with a valve-seat O, screwed into the body K of the regulatingvalve,'as plainly indicated in Fig. 2. The

rod N is held against longitudinal movement in the bonnet O by a cap O', and the outer end of this cap is provided with a stuffingbox O2 to prevent leakage. The rod N earries at its outer end a suitable handle N' to `permit the operator to turn the said rod to cause the valve L to move toward and from its seat K' to regulate the amount of the liquid compound B iiowing through the valve-seat into the body K. The bottom of the latter is provided with a funnel K2, discharging the liquid compound B drop by drop into a glass tube P, standing vertically and held in fittings Q and Q', of which the Fitting Q is attached to the body K. The iitting Q' is connected by pipes R and R with the pipe C bei tween the valves I and I', so that steam from the equalizing-pipe H can pass through the pipes R and R' into the fitting Q' and theglass tube Pto allow of clearly seeing the liquidcompound drops as the latter fall through the tube P. In order to hold the valve-stem L' and its valve L' against turning when screwing'the threaded end of the rod Ninto the head L2, I provide a pin S, extending through an elongated aperture L3 in the stem L', the said pin also serving to clean the funnel K2 in case the latter is clogged up. The pin S for this purpose extends vertically in alinement with the funnel K2, and the pin passes through a suitable stuihng-box K2, carried on the top of the body K. On the outer end of the pin S is coileda spring S', restingwithone end on the top of the stuffing-box K2,the other end of the spring pressing against the "under side of a button S2, held on the outer end of the-pin S. Thus the inner lower end 'ofrthepin S isnormally held out oi` engagement with the funnel K2`by the pressure of vthe springS'; but when the funnel K2 is clogged the operator presses the button S2 to cause the pin S to move downwardly and with its pointed ond operator releases the pressure on the button S2 the spring S returns the pin S to its normal position. (Shown in Fig. 2.)

The operation is as follows: Vhen the device is applied tothe boiler D. and it is desired to fill the reservoir A with the compound B, it is necessary for the operator to close the valves I, I', and H2 and also the needle-valve L and then open the valve E', so' as to allow any steam that may be in the reservoir A to escape therefrom. The liquid compound B is now poured into the filling-cup G, from which the liquid flows into the reservoir A and fills thesame. When this has been done, the valve F' is closed and the valves H2, I', and L are opened, so that steam-pressure is eX- erted on the compound in the reservoir A, and the steam also prevents the Water from rising in the pipe E abovethe level of the Water in the boiler D, so that the remaining portions of the pipe E and the pipe C up to the valve I are filled with steam, which also fills the pipes R R and the glass tube P. When the valve L is opened, the liquid compound I3 flows by its own gravity through the valveseat K into'the body K and then down the funnel K? drop by drop, so that the operator cansee through the glass tube P how much of-.the'liquid compound iiows through the fitting Q' and pipe R, through the lower portion of the pipe C, through the valve I', and down through the pipe E into the water contained in the boiler D.

`When it is desired to clean the reservoir A, the operator opens the valve I, so that any remnants of the compound B remaining in the reservoir A are washed directly through the pipes C and E into the feed-water. When this has been done, the valve I is again closed.

When the feeder is to be used on an open exhaust-heater for the feed-water, then the pipe E is extended below the water-level in the heater, and the pipe H is connected with' the main exhaust-pipe to furnish steam-pressure to the reservoir A, as previously explained. The operation is the same as above describedthat is, the liquid compound falls by its own gravity into the feed-Water in the heater drop by drop. v l

Having thus described my invention, VI claim as new and desire to`secure by Letters Patent- 1. A feeder for feeding a liquid com-pound into the feed-water of a boiler, comprising a reservoir for containing the liquid compound, a pipe carrying the reservoir and opening into the feed-water below the water-level, a washout valve in the said pipe, a regulating needlevalve having connection with the pipe on opposite sides of the Wash-out valve, and an equalizing steam-pipe connected with a steamsupply, with the top of the reservoir and with the said pipe below the wash-out valve, as set forth.

2. A feeder for feeding a liquid compound into the feed-water of a boiler, provided with a regulating-valve, comprising a body having a valve-seat, a needle-valve for engaging the said valve-seat, a rod mounted to turn, and screwing on the said needle-valve to move the latter to or from its seat, means' for holding the needle-valve against turning, and a funnel leading from the bottom of the said body, as set forth.

3. A feeder for feeding a liquid compound into the feed-water of a boiler, provided with a regulating-valve, comprising a body having a valve-seat, a needle-valve for engaging the said valve-seat, a rod mounted to turn, and screwing on the said needle-valve to move the latter to or from its seat, means for holding the needle-valve against turning, a funnel leading from the bottom of the said body, and a spring-pressed pin for cleaning the said funnel, as set forth.

4. A feeder for feeding a liquid compound into the feed-water of a boiler, comprising a reservoir for containing the liquid compound, a pipe carrying the reservoir and opening into the feed-water below the water-level, a washout valve in the said pipe, an equalizing-pipe connect-ed with a steam-supply, with the top of 'the said reservoir and with the said pipe below the said Wash-out valve, and a regulating-valve ,comprising a valve-body connected with the said pipe above the wash-out valve, an inlet-valve in the entrance-seat of the said valve-body, a funnel in the bottom of the said valve-body, a glass tube connected with the valve-body and into which opens the said funnel, and a fitting carrying the said tube and connectedwith the said pipe below the washout valve, as set forth.

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

GEORGE MICHAEL HILGER.

Witnesses:

lamour: RAYMOND Wnmmusluicn, JOHN Bolas.

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