US644688A - Feed-water regulator. - Google Patents

Description

Patented Mar. 6. I900.

A. R, SHATTUGK. FEED WATER REGULATOR.

(Application filed May 1, 1899.)

2 Sheets-sheaf I.

(No Model.)

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No. 644,688. Patented Mar. 6, 1900. A. n. SHATTUCK.

FEED WATER REGULATDR.

(Application filed May 1, 1899.)

(No Model.) 2 Sheets-Sheet 2.

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NHE STATEs ALBERT R. SHATTUOK, OF NEW YORK, N. Y.

FEED-WATER REGULATOR.

SPECIFICATION forming part of Letters Eatent No. 644,688, dated March 6, 1900.

Application filed May 1,1899. Serial No; 715,090. (No model.)

To all whom it may concern:

Be it known that I, ALBERT R. SHATTUCK, of the city, county, and State of New York, have invented a new and useful Improvement in Feed-Water Regulators, of which the following is a specification.

The object of my invention is to provide a simple form of automatic regulator for any controlling device, such as a cock or valve, which is itself governed by variations in water-level in a steam-generator.

My invention consists in the combination of parts more particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of my regulator, showing cer tain parts in vertical section. Fig. 2 is a side elevation showing my regulator attached in place upon the side of a steam-boiler. Fig. 3 is a detail view showing the mode of attachment of the flexible connecting-tubes at their ends.

Similar letters and numbers of reference indicate like parts. i

a is a closed receptacle, shown as preferably made in two parts I) and c, the flanges of which are connected by bolts d.

e is an internally-threaded lug on the receptacle a, which receives the rod f, to which is pivoted the lever g, and to the lever g is pivoted the lever h, and the lever his secured to any ordinary cock '5, here shown arranged in a conduit 3'.

On the under side of the receptacle a is a projection 70, also internally threaded to receive a short rod Z, in which there is a square slot m, which slot receives a pin 17., secured to the end of a vertical rod 0. Therod 0 extends down into the cylinder 10 and is provided therein with a piston q, in which are apertures r. The cylinder 19, which contains oil, has a cover 8, in which are apertures t. Secured upon the rod 0 is a threaded sleeve it, which carries an annular flanged disk 1;, applied to the threaded portion of said sleeve u. On the lower side of the cylinder p is abroad flange 10, having an annular upward projection m. The lower end of a spiral spring y lies inside of the projection m, and said spring surrounds the cylinder 19 and the rod 0, and its upper end terminates just beneath the flanged annular disk 12. Connected to the pin dis a yoke a, which carries a ring 1, which ring surrounds the vertical guiderod 2. Upon the upper and lower faces of the receptacle a and respectively upon the parts I) and c are short tubular projections 3 and 4.. Each projection, as shown in Fig. 3, is provided with projecting rings or collars 5. Similar flanged projections are mounted 011 plates 6, which plates are bolted to the side of the boiler 7. Between the projections bolted on the boiler and the projections 3 and 4: extend flexible tubes 8 and 9. The said tubes are secured to projections, as 3, in the manner shown in Fig. 3that is to say, the end of the tube is carried over the fixed collars 5 on the projection 3 and then around the flexible tubes, and in rear of said collars are placed clamping-rings 10. The said rings consist simply of bands, the ends of which are drawn together by screws, as 11. In this way the tubes 8 and 9 are tightly held upon the projections, even when considerable steam-pressure is in said tubes. Bolted to the side of the boiler is a bracket 12, having an arm 13, to which is pivoted one end of the rod 14. The other end of said rod is threaded and is received in a turnbuckle 15.

16 is a rod also received in the other side of turnbuckle l5 and connected to pin 61 by a yoke 17. As shown in Fig. 2, this device is preferably placed on a bracket 18, which is supported in any suitable way on the side of the boiler; but I do not limit myself to this mode of support, as I may use any which is suitable to the purpose in view. So, also, I have shown the thing upon which this regulator directly acts, as a valve '5, arranged in a conduit j; but it is to be understood that I do not limit myself to the employment of a valve in a conduit to be operated by my said device; but instead of such a valve I may use any contrivance for regulating the flow of water, steam, or gas or for modifying the action of any mechanical contrivance so long as the same can be done by moving a mechanical part first in one way and then in another or to greater or less degree in either direction.

The operation of my invention is as follows: The flexible tubes 8 and 9 are connected, respectively, to the steam-space and waterspace of the boiler. Consequently the water in the receptacle a will normally stand at the same level as in the generator. It will be obvious that if the receptacle a descends the cock 1', through the linkage f g h, will be turned in one direction, while if the receptacle a rises the cock i, through the same linkage, will be turned in the opposite direction. If, therefore, for example, j be a conduit conducting water, it is further obvious that I may use the descent of the receptacle a to turn oil the water or the rise of that receptacle to turn on the water through the agency of the cock, or vice versa; or, again, for example, ifj be a conduit conducting steam to a pump which pumps water into the boiler it is obvious that I may use the descent of the receptacle to turn off the steam or the rise of the receptacle to turn on the steam, thus stopping or starting the pump, and thus increasing or decreasing the level of the Water in the boiler. lVhen the receptacle a descends, it does so against the opposing action of the spring y acting upon the flanged disk L. Assuming the parts to be so arranged and ordered as that when the water in the boiler is at a determinate level-that is to say, in the position shown in Fig. 1then if the waterlevel in the boiler rises more water will come into receptacle a and will cause that receptacle to descend by gravity against the action of the spring 1 The effect of this descent will then be through the levers f h to turn the cock 2?, so as to shut off a further supply of water, steam, or gas to the pump orboiler. IVhen, however, the water-level in the boiler becomes lower, then the spring 3/ will react to return the receptacle to its normal position, and thus through the levers to open the valve 1' once more; or, assuming the parts again to be in the position shown in Fig. 1, the spring 1 being compressed to balance the water in the receptacle (1, if the water-level in the boiler should first fall then the spring would expand to raise the receptacle (1, and hence open the valve t' and allow a further supply of water to come into the boiler or steam to the pump, and thereafter when the water-level in the boiler has risen the receptacle a will descend, again bringing the parts into the position shown in Fig. 1.

It will be seen, therefore, from what has been described that my device is a very sensitive regulator, depending wholly upon changes of level of the water in the boiler. The pipes 8 and 9 are, as I have said, made of flexible tubingsuch, for example, as heavy india-rubber and canvas or any other suitable material. Inasmuch as the pipes have more or less transverse resiliency, I preferto make them in arched form, as shown, the tube 8 being reversely arched to the tube 9. In this way whatever strain due to the tendency of the pipes to become straight is counteracted by the opposing arches. In order to meet the thrust upon receptacle a due to the pressure of steam in the tubes 8 and 9, I provide the pivoted rods let and 16,united by the turnbuckle 15. Because these'rods are pivoted, as shown, to the boiler they will readily adapt themselves to the vertical displacementof the receptacle a, and, moreover, by means of the turnbuckle the length of the two rods 14 and 16 may be shortened to adjust them to the tubes 8 and 9 and to the desired distance of the receptacle a to the boiler 7. Inasmuch as the receptacle a is carried at the end of the arm formed by the rods 14 and 16, it is obvious that in moving it will traverse a curve. This is allowed for by the pin n entering into the large slot on at the point of connection between the receptacle a and the rod 0. The sleeve 1,which surrounds the guide-rod 2,is made somewhat loose,so as to allow for this curvilinear movement of the receptacle.

The cylinderp, with the piston (1 attached to the lower end of rod 0, constitutes a dash -pot. Its function is to prevent impressed vibration of the receptacle a, or, in other words, to prevent the receptacle a having any other movement than that which is produced by the varying weight of Water within it and the action of the spring outside. This arrangement of dash-pot,in combination with the receptacle a,is of especial advantage when the device is placed upon steam-Ye hicles which traverse rough or even ordinary roads, the effect of the dash-pot being to prevent the receptacle being unduly vibrated in passing over obstructions or inequalities in the road.

I clai n1- 1. In combination with a steam-generator, a movable closed receptacle outside of said generator, flexible pipes connecting said receptacle respectively with the steam and water spaces of said generator, a pivoted rod extending from said receptacle to said generator, aspring opposing the downward movement of said receptacle, and a regulating device controlled by and through the movement of said receptacle, substantially as described.

2. In combination with a steam-generator, the movable closed receptacle (0 outside of said generator, the spring 7 opposing the downward motion of said receptacle a, the reversely-arched flexible pipes S, 0 respectively communicating with the upper and lower portions of said receptacle and with the steam and water spaces of said generator, the jointed rod 14, 16 extending between said pipes from said receptacle to said generator, and a regulating device controlled by and through the movement of said receptacle, substantially as described.

3. The combination with a steam-generator of the movable closed receptacle a outside of said generator and communicating with the steam and water spaces thereof,the spring y opposing the downward motion of said receptacle, jointed rod 0 extending downward from said receptacle and connected to said spring y, dash-pot actuated by said rod 0 and a regulating device controlled by and through portions of said receptacle and with the steam the movement of said receptacle, substanand water spaces of said generator,the jointed tially as described. rod 14, 16 extending from said receptacle to 4. The combination with asteam-generator said generator, and a regulating device con- I 5 5 of the movable closed receptacle outside of trolled by and through the movement of said said generator,the guide 2 for said receptacle, receptacle, substantially as described.

spring y opposing the downward motion of said receptacle, jointed rod 0 extending down- ALBERT SHATTUOK' ward from said receptacle and connected to Witnesses: .1 xo said spring 1 flexible pipes 8, 9 respectively CHARLES P. ROWLAND,

communicating with the upper and lower J. P. GIBSON.

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