US884601A - Radiator-valve. - Google Patents

Description

PATENTED APR. 14, 1908.

J. B. MORGAN.

RADIATOR VALVE.

APPLICATION PIL'EI NOV. 29. 1907.

2 SHEETS-SHBET 1.

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aft/E5565 PATENTED APR. 14,1908.

J. B. MORGAN. RADIATOR VALVE.

APPL'IGATION FILED NOV. 29. 1907.

2 SHEETS-$111131 2.

THE mmms Pzrsres c0 WASHINGTON. D. c.

JOHN B. MORGAN, OF SGHENEOTADY, NEW YORK.

RADIATOR-VALVE To all whom it may concern:

Be it known that 1, JOHN B. Mono-AN, a citizen of the United States, residing at Schenectady, in the county of Schenectady and State of New York, have invented new and useful Improvements in Radiator-Valve Balances, of which the following is a specification.

My invention relates to improvements in check valve controlling devices for radiators of two-pipe heating systems in which exhaust steam is used and a vacuum pump is employed to maintain a proper circulation, an my invention relates particularly to a special class of such devices called vacuum balances.

The object of my invention is to provide a in such a manner that when the water of condensation in the radiator reaches a certain height its pressure will be suflicientto open the check valve against the tension of the s ring so that the water of condensation is a owed to pass outwardly from the radiator into the vacuum pipe at intervals.

The invention consists in the combination and arrangement of parts set forth in the following specification and particularly pointed out in the appended claims.

Referring to the drawings: Figure 1 is a vertical sectional elevation of the preferred form of my improved vacuum valve balance. Fig. 2 is a sectional elevation, partly broken away, taken on line 2-2 of Fig. 1, looking toward the right. Fig. 3 is a detail sectional elevation taken on line 83 of Fig. 1 and partly broken away to save space. Fig. 4 is a detail plan section taken on line 44 of Fig. 1, and partly broken away to save space. Fig. 5 is a vertical sectional elevation of a modified form of my invention. Fig. 6 is a plan section taken on line 66 of Fig. 5. Flg. 7 is a vertical sectional elevation of a second modified form of my inven tion showing the same connected to a radiator. Fig. 8 is a sectional elevation taken on line 88 of Fig. 7, looking toward the right. Fig. 9 is a sectional elevation taken on line 9-9 of Fig. 7 looking toward the right.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, referring now to Figs. 1 to 4, inclusive, 10 is a casing connected by means of a pipe 11 to a radiator, not shown.

Specification of Letters Patent.

Application filed November 29, 1907.

Patented April 14, 1908.

Serial No. 404,339.

The casing 10 may be connected by means of a pipe 12 to any usual or desired form of vacuum pump, not shown, by means of which a partial vacuum may be maintained in a vacuumljchamber lS located within said casing. A check valve 14. pivoted at 15 in the casing 10 is adapted to permit water to iiow outwardly through the pipe 11 into the casing 10 and outwardly therefrom into the vacuum pipe 12. An arm 16 bearing against an arm 17 on the valve 1% is fast to a rock shaft 18, said rock shaft being journaled in suitable bearings in the casing 10 and being provided with an annular flange 19 which is preferably hemispherical in form and which fits a corresponding hemispherical recess 20 formed in the casing 10. An arm 21 fast to or formed integral with the rock shaft 18 bears against the under side of a plunger 22 slidably arranged in a spring casing 23 which may be formedintegral with the casing 10, said plunger having formed thereon an annular flange 24 against the upper side of which a compression spring 25 bears. The spring 25 bears at its upper end against a thimble 26, while a thumb screw 27 having screwthreaded engagement with a cap 28 bears against the thimble 26 and serves to adjust the tension of the spring 25. The cap 28 has screw-threaded engagement with the casing 23 and may be removed therefrom at any time should it be necessary to remove the spring 25.

A spring 29 surrounding the rock shaft 18 is connected at one end to the arm 21, the other end of said spring being inserted in a hole formed in a thimble 30. The s ring 29 acts as a compression spring to holc the an' nular flange 19 against its seat 20 and also constitutes a torsional spring which tends to rotate the rock shaft 18 and acts in conjunction with the spring 25 to hold the valve 14 normally closed. To wind up the spring 29, the thimble 30 may be provided with a square hole 31 into which a key may be inserted through a hole formed in a cap 33. The thimble 30 may be held against rotation by means of screws 34 which extend through the casing 10 into slots 35 formed in said thimble. While in the drawings, I have shown but two of these slots I prefer in practice to provide a number of said slots aroundthe periphery of the thimble 30. A cap 36 having screw-threzuled engagement with the casing 10 is provided with a projection 37 which constitutes a stop adapted to limit the swinging movement of the arm 16. The general eration of this form of my invention is as fol ows: Assuming .the radiator and the pipe 11 to be filled with steam at a temperature of 212 F. or higher and the valve 14 in contact with its seat as shown in Fig. 1 and assuming that there exists within the suction pipe 12 and vacuum chamber 13 a proper partial vacuum, the radiator radiates its heat to the surrounding atmosphere and the steam contained therein condenses. As the steam in the radiator condenses, the water of condensation gradually rises and when it has reached a predetermined.height the pressure due to the head of water is suflicient to open the check valve 14-, thereby acting through the arm 16, rock shaft 18, arm 21 and plunger 22 to compress the spring 25. The check valve 14 now being open, the water of condensation in the radiator flows outwardly through the casing 10 and thence downwardly through the suction pipe 12 and when the radiator has been emptied of its water the springs 25 and 29 act to close the check valve 14. The valve then remains closed until a new su ply of steam in the ra diator has condenser and the head of water is sufficient to open the valve once more. The tension of either or both of the springs25 and 29 may be varied as hereinbefore described to determine at what height of water in the radiator the valve 14 shall open.

It will be seen that the annular flange 19 bearing against its seat 20 prevents air from leaking into the casing 10. This is important, as any leakage however slight would be apt to interfere with the working of the valve by diminishing the vacuum within the vacuum chamber 13 and pipe 12. It will be seen that the spring 29 in addition to holding the annular flange 19 against its seat 20 serves also to su )plement the spring 25. It will, of course, e perfectly evident that a .weight or weights may be substituted for the spring 25 without departing from the spirit 0' my invention inasmuch as a weight is an exact mechanical equivalent of a spring.

In Figs. 5 and 6, T have shown a modified form of my invention which is exactly similar to the embodiment of my invention just described except that the vertical spring and plunger and other parts employed therewith are omitted and the parts corresponding to the parts of the form first described are designated by the same numerals of reference with the addition of the indexes 1. The operation of this form of my invention is similar to the operation of the form first de scribed and is so obvious as to require no description.

In Figs. 7 to 9, inclusive, I have shown a second modified form of my invention which is similar to the form shown in Figs. 5 and 6 except that the valve is connected to the rocker arm by means of a link 17 and the parts corresponding to the arts of the form shown in Figs. 5 and 6 are esignated by the same numerals of reference with the substitution of the indexes 2 for the indexes 1.

The operation of the form of my invention just described will be perfectly obvious from the description of the operation of the form of my invention first described shown in Figs. 1 to 4, inclusive. There are some con ditions of service under which it is desirable to use the form of my invention shown in Figs. 1 to ,4, inclusive, in which one of the springs supplements the other and there are other conditions which will call for the use of the form shown in Figs. 5 and 6 or the form shown in Figs. 7 to 9, inclusive.

Having thus described my invention, what I claim and desire by Letters Patent to secure is:

1. In combination, a valve casing adapted to be connected to a radiator, a pivoted check valve located in said casing and adapt ed to permit the flow of water outwardly from said radiator into said valve casing, a rock shaft, an arm fast to said rock shaft and adapted to actuate said valve, and a spring operatively connected to said rock shaft and arranged to normally hold said valve closed.

in combination, a valve casing adapted to be connected to a radiator, a check valve located in said casing and adapted to permit the flow of water outwardly from said radiator into said valve casing, a second casing connected to said valve casing, a rock shaft j ournaled in said second casing, an annular flange on said rock shaft, an annular seat in said second casing against which said flange bears, a spring arranged to hold said flange in contact with said seat, an arm fast to said rock shaft and arranged'in contact with said check valve, a second arm fast to said rock shaft, a spring operatively connected to said second arm and arranged to normally hold said valve closed, and-means for adjusting the tension of said second spring.

3. In combination, a valve casing adapted to be connected to a radiator, a check valve located in said casing and adapted tapermit the flow of water outwardly from said radiator into said valve casing, an arm fast to said rock shaft and adapted to actuate said valve, an annular flange on said rock shaft, an annular seat in said casing against which said flange bears, and a spring arranged to hold said flange in contact with said seat, said spring also acting to hold said valve normally closed.

4. In combination, a valve casing adapted to be connected to a radiator, a check valve located in said casing and adapted to permit the flow of water outwardly from said radiator into said valve casing, an arm fast to said rock shaft and adapted to actuate said valve, an annular flange on said rock shaft, an annular seat in said casing against which said flange bears, a spring arranged to hold said flange in contact with said seat, said spring also acting to hold said valve normally closed, a second arm fast to said rock shaft, and a supplemental spring operatively connected to said second arm and tending to hold said valve normally closed.

5. In combination, a valve casing adapted to be connected to a radiator, a check valve located in said casing and adapted to permit the flow of water outwardly from said radiator into said valve casing, a rock shaft, an annular flange on said rock shaft, an annular seat in said casing against which said flange bears, a spring arranged to hold said flange in contact with said seat, an arm fast to said rock shaft and arranged in contact with said seat, and a spring connected to said rock shaft, and arranged to normally hold said valve closed. a

6. In combination, a valve casing adapted to be connected to a radiator, a check valve located in said casing and adapted to permit the flow of water outwardly from said radiator into said valve casing, a rock shaft, an annular flange on said rock shaft, an annular seat in said casing against which said flange bears, a spring arranged to hold said flange in contact with said seat, an arm fast to said rock shaft and arranged in contact with said valve, a spring connected to said rock shaft and arranged to normally hold said valve closed, and means for adjusting the tension of said spring.

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

JOHN B. MORGAN.

Witness es JAMEs C. COOPER, NANCY E. SITTERLY.

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