US278112A

US278112A - edwards

Info

Publication number: US278112A
Authority: US
Publication date: 1883-05-22
Anticipated expiration: 1900-05-22

Description

(No Model.) A 2 Sheets-Sheet 1. D. EDWARDS.

FEEDWATER REGULATOR. No. 278,112. A Patented May 22,1883.

.H T p- I WITNESSES: INVENTOR v I 3 mm 1 Awzwie ATTORNEYS (No Model.) 2 Shets-Sheet 2.

D. EDWARDS.

FBEDWATER REGULATOR. No. 278,112. Patented May 22,1883.

WITNESSES: INVENTOR 4 4; C, hard Ekwwva ATTORNEYS UNITED STATES PATENT OFFICE.

DAVID EDWARDS, OF NEW YORK, N. Y.

FEED-WATER REGULATOR.

SPECIFICATION forming part of Letters Patent No. 278,112, dated May 22, 1833.

Application filed April 12, 1883. (No model.)

In all whom it may concern:

Be it known that-I, DAVID EDWARDS, acitizen of the United States,residing atNew York, in the coun'tyand State of New York, have invented new and useful Improvements in Feed Vvater Regulators. of which the following is a specification.

rod passes, and a pipe emanating from the valve-chamber, so that when the pot is placed with its middle on alevel withthe mean'waterline of a steam-boiler and the pipes extending from the same are connected one with the steam-space and the other with the water-space ot' the boiler the valve will be opened automatically Whenever the water in the boiler sinks below its mean-water-line, and steam will pass through the pipe emanating from the valve-chamber to impart motion to the feedpump, or water under pressure will flow through said pipe directly into the pot, and consequently into the boilenuntil the float rises and the valve is closed.

In the accompanying drawings, Figure 1 represents a vertical section of my pot in the plane a: .r, Fig. 2. Fig. 2 is a horizontal section in the plane y y, Figs. 1 and 3, on a larger scale than the previous figure. Fig. 3 is an inside face view of the valve-chamber. Fig. 4 is a sectional view of a boiler with myattachment when connected to the feed-pump.

Similar letters indicate corresponding parts.

In these drawings, the letter A designates the pot, which is by preference made in halves and with a circular cross-section, but which maybe made in any form or shape suitable for the purpose. From the top part of this pot extends a pipe, B, which is intended to connect with the steam-space of a boiler, (see Fig.

4,) and from the bottom part of the pot extends a pipe, 0, which is intended to connect with the water-space of the boiler, the pot being placed at such a level that when the water in the boiler rises to the mean water-line the pot is about half-filled with water, as indicated in Fig. 1. In theinterior of the pot is the float D, which connects by a rod. E, with a valve, F, situated in a chamber, G, which is secured to the pot, as shown in Figs. 1, 2, and 4. Said valve has two disks, a I and in the interior of the "alve-chamber are formed two seats, a I), one for each of the valve-disks, as shown in Fig. 2. The space 0, outside of thedisks a. I), communicates with a pipe, H, which extends from the valve-cl.1an1 ber, and which may either be connected to the steam-chest ot' the feedpump I, as shown in Fig. 4, or which may be connected with a water tank or reservoir situated at such an elevation that the water will flow from it under a certain pressure. The stem 01 of the valve F extcnds'through astufl' ing-box, e, and on its end is mounted a cam, f, the object of which will be presently explained. The rod E, which connects the float with the valve, extends through an oblique slot, 9, (best seen in Fig. 3,) which is formed in a disk, It, secured to the inner face of the valve-chamber G. If this slot were made perpendicular, the rising and falling motion of the float would simply produce an oscillating mo tion of the valve F; but by the oblique slot the valve is moved away from its seats when the float Dsinks down, and when the float rises the valve is causedto close on its seats. The disk h, which contains the oblique slot, is perforated with a number of holes, Fig. 3, so that when the float sinks down and the valve is movedaway from its seats a free communicaficient supply ofwater is beiugforced into the boiler to retain practically a constant level. The cam f on the stem of the valve F is intended to start a steam-whistle whenever the float in the pot sinks down, and said cam can be easily so adjusted that the attention of the engineer'is awakened it the feed-pump, from This pump is set in motion, and a suf tion is opened between the interior of the pot IOO closed and the supply of water is cut off.

some cause, should not act. If my pot is connected to alow-pressnrc boiler, and if there is a supply of water under pressure sufiiciently greater than the boiler-pressure, the pipe H may be connected directly to the water-supply pipe, and when the float sinks down and the valve F is opened the water [lows into the pot against the pressure of the steam, which is supposed to be, say, ten pounds, while the water flows under a pressure of, say, twenty pounds to the square inch. From the pot the water flows directly into the boiler until the high-water line is reached, when' the valve F I am aware of the patentgranted to Silas 0. Salisbury, dated ()ctober3, 1882, and numbered 265,542, and I do not wish to claim as my invention anything shown and described in this patent. The float contained in my pot is connected directly to a balanced valve by a rod which passes through an oblique slot. By this arrangement a multiplicity ot'joints is avoided, l and the supply of water to the boiler is con- 1 trolled without fail. In fact I have adapted the steam-trap described in my Patent No. 244,571 to act as a feed-water regulator.

W'hat I claim asnew,and desire to secure by Letters Patent, is

The combination, substantially as hereinbefore described, of the pot, the two pipes, one extending from the top part and the other from the bottom part of said pot, the float situated in the pot, the valve-chamber connected to the pot and communicating with the same, the balanced valve inclosed in said valvechamber, the rod connecting the float directly with the valve, the oblique slot through which said rod passes, and the pipe emanating from the valve-chamber.

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

DAVID EDWARDS. [11.8.]

\Vitnesses:

W. HAUFF, E. F. KAsTENHUBER.