US672051A - Noiseless self-acting valve. - Google Patents

Description

No. 672,D5I. Patented Apr'. I6, |90I. J. ACTUN.

NOISELESS SELF vACTING VALVE.

(Application led June 17, 1897.) (No Model.)

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UNITED STATES PATENT OFFICE.

JOHN ACTON, OF BROOKLYN, NEW YORK.

NOISELESS SELFf-ACTING VALVE.;

SPECIFICATION formingpart of Letters Patent No. 672,051, dated `.April 16, 1901.

Application filed Jnne'l?, 1897.

T0 a/ZZ whom t may concern.-

Be it known that I, JOHN ACTON, a citizen of the United States, and a resident of Brooklyn, county of Kings, and State of New York, have invented a new and useful Improvement in Noiseless Self-Acting Steam-Valves, of which the following is a specification.

The object of this invention is to produce a noiseless self-acting valve.

The invention consists in a compound taperseat valve, a pivoted post for the valve-lever, and an adjustable recoil-spring support.

Figure 1 is a side View of the valve and its parts. Fig. 2 represents the recoilspring support. Fig. 3. represents the valve-lever operated by spring instead of a ball or weight. Fig. 4 is a curved valve-lever to be used on an upright valve, andFig. 5 represents a modified form of recoil-spring. l

A, Fig. 1, is the valve-body, to which is secured the several parts composing the valve.

A', Figs. 1, 3, and 5, is a cap which is secured to the body A.

A2, Figs.'1, 2, and 3, is a double arm cast integral with or otherwise secured to the cap A.

A3, Fig. l, .is an interior seat cast integral with the right-hand end of the body A and serves to form the valve-seats A4 and A5.

B and B5, Fig. 1, are valves. Both of them are secured to the valve stem or rod O and are provided with parallel sides B' and B6, except a narrow part of the lower sides, which are beveled, as shown at B2 and B4. These narrow bevels are ground to fit the seats A4 and A5 of the part A2.

D, Figs. 1 and 3, is a lever pivoted to the link D3 at D2 and secured to the valve-stem C at C', that all friction or binding may be avoided on the valve-stem C. The link D? is pivoted at D4 to the arm A2.

F, Figs. 1 and 2, is a threaded post adjustably secured to the arm A2 and supports the yoke F2, which is provided with the guideslot F4, in which is held the lever D, as shown in Fig. 2. j

F5, Fig. 2, is a spring placed in the hollow yoke under the lever D. This spring is of sufficient tension to prevent noise aswell as avoid any hammering of the valves and valveseats. That the spring may have more or less resistance to the lever D the yoke is made adjustable up and down by turning the post F.

Serial No. 641,123. (No model.)

The split pin F6, Fig. 2, is to hold the yoke F3 in place after it has been properlyT adjusted.

Fig. 3 shows how the ball D may be dispensed with and a spring used in its place. E is a rod linked to the leverD at E and provided with threads E5 at its lower end. E2 is a spring which is compressed more or less between the arm A2 and the hub of the handwheel E4. Fig. 3 also shows a modification of the yoke F3, G being a hollow threaded post secured to the arm A2 'and provided with screw G2, spring G2, and cap G. By turning the screw G3 more or less resistance is given the lever D in the same manner as by the yoke F2.

D, Fig. 4, shows a curved lever which is used when the valves are placed in avertical posit-ion.

Fig. 5 shows a modification of supporting the recoil-spring, by which the yoke F2 and post F are dispensed with. C is the valvestem, having threads C2 at its upper end, on which are placed the nut O4 and jam-nut O3. C5 is a coiled spring, the tension of which is regulated more or less by aid of the nuts O3 and O4 to resist the lever D.

It will be seen that by adopting the narrow bevel on the valves there is less liability of dirt forming than though they were of the usual long bevel, also that the cost of these valves is small compared to the ordinary ones land that they are easily repaired. I also overcome expansion and contraction through its compensating seats of small bearing. The narrow bevel of the valve has also been found after nearly two years of actual test to wear its own seat, which saves expense and annoyance.

While I have shown two valves, I do not limit myself to the use of two, as one will often be used.

B7 andBs, Fig. 5, show ext-ra parallel guides ory clearance sides to the valve. By this plan I am enabled to clear the valve of all dirt and foreign matter as well as forming a gradual cut-O which saves the valve-seats, and in part prevents noise or injury to the valve.

When there is a back pressure of steam, the valve is raised from the seat, which causes the steam to escape until the pressure has all gone.

Having thus fully described my invention,

IOO

secured to the stem C, and provided with the` guide-lugs B5, and means to hold the valves down as and for the purpose described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two Witnesses, this 5th day of May, 1897.

.. JOHN ACTON.

Witnesses:

E. T. THOMAS, WILLIAM J. LYNCH.

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