US717927A - Valve. - Google Patents

Description

No. 717 927. PATBNTED JAN. 6 `1903.

H. RITTER. Y

' v VALVE.

APPLICATION IEILIID SEPT. 19, 1902. H0 MODEL.

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Il! flfl/lfllll nui Unirse 'STATES @1f HENRY RITTER, OF CINCINNATI, OHIO, ASSIGNOR TO THE LUNKENHEIMER COMPANY, OF CINCINNATI, OHIO, A CORPORATION O F OHIO.

VALVE.

SPECIFICATION forming part of Letters Patent No. 717,927, dated January 6, 1903.

' Application filed September 19,1902. Serial No. 124,021. (No model.)

t.'0 all whom, it rita/y concern.-

Be it known that I, HENRY RITTER, a citi-V zen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Valves, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

The object of my invention is to provide a valve, particularly adapted for use in watercolumns attached to boilers, for giving an alarm by means of a steam-whistle both when the water reaches its maximum level and its minimumrlevel*that is to say, both a high- Water alarm and a low-water alarm-though said valve may be used for other purposes, and this objectI attain by means of simple and eiiicient mechanism, as hereinafter set forth.

The novelty of my invention will be specically pointed out in the claims.

In the accompanying drawings, Figure l is a central sectional side elevation of a valve embodying my invention. Fig. 2 is a plan view of the same. Fig. 3 is a central sectional side elevation of the valve under a modified form of construction. Fig. 4.- is a plan View of Fig. 3. Fig. 5 is a perspective View of the valve-stem-lifting mechanism of the valve shown in Figs. 3 and 4.. Fig. 6 is a central sectional side elevation of a water column equipped with its float, whistle, and my improved valve mechanism applied thereto.

The same letters of reference are used to indicate identical parts in all the iigures.

In Fig. 6 I have illustrated my valve as connected with the water-column of a boiler and 4o have sufliciently indicated all of the connections to enable those familiar with the art to understand the application of the same, so that in describing this figure `it is only necessary to say that A is the water-column; B, the float therein; C, the stem of the float, with collars tt thereon above and below the eye of the valve-lever I), through which the stem C passes. This eye is clearly illustrated at b in Figs. 2 and 4. The valve-case E is secured 5o in the channel c, leading from an aperture .controlled by the valve to the alarmwhistle Fat the outer end of the channel. This much of the mechanism is old and common to the art and needs no further description.

By reference to Figs. 1 and 2 my preferred 55 form of valve mechanism may be described as follows: The valve-casing E has an enlarged bore d in its upper end, which at its lower end communicates with a smaller concentric bore e, passing through a transverse passagef, communicating with the interior of the water-column, and finally terminates in a needle-valve seat g in a passage h, leading through the valvecasing to the channel c. The lower end of the valve-casing is threaded, as at t', to enable it to be screwed into the interiorly-threaded inner end of the channel c, Fig. 6.` Fitted within the bore dof the valvecasing is a lifting-cylinder G, extending above the top of the valve-case E and provided with outwardly-projecting trunnions j, engaging notches in the head-piece H of the actuatingleverD. This head-piece has on opposite edges ribs bearing upon the upper ,surface of the valve-casing E, which act as fulcra to enable the head-piece to be tilted on the top of the valve-case by the action of the lever D, as will be readily understood, and when sotilted the cylinder Gr will be raised or lowered in its bearing in the casing E, as will be readily understood. Within the cylinder Gis a valve composed of the lower frusto-conoidal or needle shaped valve g, an upper extension m therefrom passing through the bore eandthrough a perforation in the bottom of the cylinder G, and a still further enlarged upper extension I iitting snugly within the cylinder G, and, if

desired, above the same a smaller stem n, by

which the valve can be readily removed from or replaced within the. cylinder G.

By the above construction it will be readily understood that the operating-lever takes hold of the valve-stem low down or near its seat, so that in lifting or lowering the same a more direct up-and-down movementis given to the valvestem than if the lever engaged the same directly at its upper end. Consequently there is less liability of binding, and a more sure and delicate action of the parts is insured.

In Figs. 3, 4, and 5 I have represented a modification in the structure which without IOO altering at all the principle of operation eheapens the structure somewhat. Under this form the cylinder G is dispensed with as such, though its operatingbottom 0 is retained in the form of a ring with ribs lo, Fig. 5,- engaging notches on the under side of the enlarged portion Gr of the valve-stem and with side arms r extending up in slots in the sides of the stern Grand having at their upper ends the trunnionsj, engaging the recesses in the upper side of the head-piece H of the lever D. In all other respects the Construction is the same and the mode of operation is the same, as will be readily understood.

In order to aid the stem C of the fioat in maintaining the lever D and its head-piece H in proper operating position at all times, I employ a lug J, projecting up through a slot in the head-piece H on its side opposite the lever D.

Having thus fully described my invention, I clairn- 1. The combination of a valve-ease, a valvestem vertically mounted therein and having at its lower end a tapering valve-point adapted to seat in the egress-aperture of the valvecase, a collar surrounding said stem and engaging therewith at its lower end, upward eX- tensions from said collar, a lever -actuated head-piece on the top of the valve-casing, and trunnion eonnectionsbetweensaid head-piece and the upward extensions of the collar, substantially as described.

2. The combination of a Valve-ease, a valvestem vertically mounted therein and having at its lower end a tapering valve-point adapted to seat in the egress-aperture of the valvecase, a cylinder surrounding said stem and engaging therewith at its lower end, a leveractuated head-piece on the top of the valvecasing, and trunnion connections between said head-piece and the upper end of the Cylinder, substantially as described.

HENRY RITTER.

VViLnesses:

GEORGE S. BAILY, EDWARD PECK.

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