US503339A - Ball-cock for tanks for water-closets - Google Patents

Description

(No Model.)

J. R, ALLAN. BALL COGK FOR TANKS FOR WATER CLOSETS, &0.

No. 503,339 Patented Aug. 15, 1893.

UNITED STATES PA'TENT OFFICE@ JOHN R. ALLAN, OF BO`TON, MASSACHUSETTS.

BALL-COCK FOR TANKS FOR WATER-CLOSETS, &0.

SPECIFICATION forming part of Letters Patent No. 503,339, dated August 15, 1893. Application filed March G, 1893. Serial No. &64,785. (No model.)

To all whom it may conccrn:

Be" it known that I, JOHN R. ALLAN, a subject of the Queen of Great Britain, residing in Boston, in the county of Suffolk and State of ltlassachusetts, have invented a new and useful Improvement in Ball-Cocks forTanks for VVatenClosets, dac., of which the following is a specification.

In this invention the apparatus is constructed with a relief attachment which prevents the valve from closin g slowly and grad ually, but holds it open while the tank is being refilled until it is nearly full, when it allows the valve to close quickly and suddenly. Thus the unpleasant continuous sound produced by a slowly closing valve is avoided.

In the accompanying drawings, in which similar letters of reference indicate corresponding parts, Figure l is a sectional View taken vertically ot' a ball-cock embodying my invention. Fig. 2 is a section on line m, Fig. 1, looking toward the left. Fig. 3 is a detail in section on the same line showing a modification.

Arepresents the wall of a tank, and B the ball or oat therein.

C is the supplypipe leading into the casing D of the valve E of which E' is the stern, all constrncted as usual. The valve rises and drops in the casing D, rising toits seat D' to stop the supply, and, when in the position shown in Fig. 1 allows the water to fiow into the tank through the space or passage d.

The construction ot' the cork e and venthole e' is too common to need explanation.

The valve is provided with a guide-pin f which extends into a slot in the bent arm F, said arm being pivoted at F' to the casing D and being provided with a disk H at its outer end which is screwed to and thereby suppots, the fioat B.

The casing D is provided on the side next the ball with a pair of ears I between which is pivotally secured a bent lever, the horizontal or long arin K of which has secured to the under side of its outer end a concavo-convex disk or cup L, which corresponds in shape with the ball B directly over which it is set. The short arm N of this lever extends down at an acute angle with the long 'arm K and is provided at its lower end with a foot or toe piece N' oi' suitable size and shape to extend to and rest or catch upon the corner of the arin F, as shown in Fig. 1.

A vertical shoulder S extends from the outer end of the arin F against the outer surface of the casing D. When water is used and drawn fron the tank, the fioat B drops with the surface of the water into the position shown in Fig. l, but cannot drop any farther as it is held by the shoulder S against the casing D, so that it is held in suspension above the surface of the water should the water recede sufficiently. r

When the water, replenished through the supply pipe C and space d in the Valve, rises suiticiently the air is trapped under the disk or cup L, and, when the pressure is strong enough, suddenly lifts it and hence lifts the outer end of the lever K into the position shown in broken lines in Fig. 1, noving the toe N' froni its position on the arin F, where it is barely caught, with the result that the said arn F, which is secured to the float, being free as the fioat rises suddenly lifts the valve E and seats it against the part D' and shuts off the supply.

Thus it will be seen that the novenent of the fioat is short and sudden, and it does not begin to rise until the supply is ready to be cut off, and when this is done, it is performed so quickly that it is impossible there should be any long unpleasant sound such as is caused by the water while the valve is slowly closing during the gradual filling of the tank, as is the case in ball-cocks constructed as is now common.

In the modification shown in Fig. 3, the short arin N has two feet N' which lie under a T shaped piece P which serves as an aid to the feet catching, in case the Water is sonewhat disturbed, so that the fioat and arni F are unsteady.

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

In a ball-cock for tanks for water closets &(3., in combination, the valve-operating arn F pivoted to the stationary portion D of the apparatus and having the fioat Secured toits free end, said arin being provided with a check or stop, as S, and the level' K N pivoted to the ICC casing and oonsisting of the substantially of the said cup or disk, substantially as set horizontal long arm K provided at its oter fo'th. end with the cup or disk L, and the nearly Vertical Short arm N provided with the pro- JOHN ALLAN' 5 jecting foot or toe N' for engaging said arm VVitnesses:

F at the extreme edge thereof, and adapted HENRY W. WILLIAMS,

to be tripped to release sa'darm' by' the rise J. M. HARTNETT;

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