US1552159A - Valve stem - Google Patents

Description

' Sept. 1, 1825.

G. HOLTER VALVE STEM flied Feb.

MVIIIIIIIZVIAZ INVENTOR Gustave l/o/ter BY Wm ATTORNEY Patented Sept. 1, 1925.

UNITED STATES GUSTAVE HOLTER, or SEATTLE, WASHINGTON.

VALVE STEM.

Application filed February 18, 1925. Serial No. 9,972.

To all whom it may concern: r

Be it known that I, GUs'rAvE HoL'rER, a citizen of the United States, residing at Seattle, in the county of King and State of WVashington, have invented a jcertain new and useful Improvement in Valve Stems, of which the following is a specification.

My invention relates to new and useful improvements in adjustable valve stems that are particularly adapted for faucets and the objects of my invention are to provide a valve stem that may be readily adjusted for different throws of valves and which is entirely independent of any spring gaskets, or packing in its operation.

Further objects are to provide a stem that is simple and durable in construction, efficient and reliable in operation and which may be manufactured at comparatively small cost.

With the above and other objects in view which will appear as the description p-roceeds, the invention consists of the novel construction, adaptation, combination and arrangement of parts hereinafter described and claimed. 7

These objects are accomplished by devices illustrated in the accompanying drawings, wherein- Figure 1 is a view in central vertical section of a faucet wherein the valve stem is shown at the limit of its downward stroke.

Fig. 2 is a view partly in elevation and partly .in vertical section showing the valve stem at the limit of its upward stroke;

Fig. 3 is a view in longitudinal section taken on a broken line 3, 3 of Fig. 1; and

Fig. 4 is a view in elevation of the stem with the adjustable nipple and half rings attached thereto.

Referring to the drawings throughout which like reference numerals designate like parts, the numeral 5 indicates the base portion of a faucet that is provided with a depending reduced threaded portion 6 adapted to be secured to a conduit or sup-ply pipe.

An inner pipe 7 is internally threaded within said reduced portion and projects upwardly into a pressure chamber 8 provided within the said base portion.

The base portion 5 is threadedly secured at its upper end to a valve casing 9 that is provided with a discharge nozzle 10 communicating with the interior chamber 11 of said valve casing. Said interior chamber 11 is provided with a'lining l2 fixedly secured.

therein and reduced at its upper end to form an annular shoulder 13, and its lower open end is beveled to form a valve seat 14; for reasons presently set forth. 7

A valve 15 is slidably mounted within the chamber 11. The upper portion of said valve comprises'a plurality of vertical ribs 16 in spaced relation and, acentral spline 17 so that liquid may pass freely therethrough. The lower portion of the valve is made in th form of an inverted cup 18 adapted to fit over the upper end of the pipe 7 with sufiicient space between for the free passage of liquid as clearly shown in Fig. 1, of the drawings.

The conical surface 19 joining the upper and lower portions of said valve is arranged to contact with the seat 14 as will be readily understood. Itis of the type that is adapted to be normally held in a closed position by ineans of hydraulic pressure within cham- The foregoing description is incidental to the subject matter of the present invention which is primarily concerned with the means for operating the valve and regulating its movement as disclosed in the following description.

Said means comprises a valve stem 20 provided at its upper end with a handle 21 and at its lower end with a worm 22 and adapted to contact with the top of the valve 15.

The upper end of the casing 9 is reduced and threaded to receive a cap 23. A recess 24 is provided in said upper end and is internally threaded to receive a nipple 25 that fits snugly around the stem 20, said nipple is provlded with diametrically disposed slots 26 adapted to receive a key or other instrument for the purpose of turning the nipple and thus regulating movement of said valve stem.

The stem 20 is provided with a reduced portion 27 and two half rings 28 are adapted to fit therein and to ride up and down with said stem. At the limit of their downward movement they will contact with the floor of the recess 24 and their upward movement will be restricted byengagement with the bottom of the nipple 25.

It will be seen that any wearing away of the valve seat 14 or cone bearing 19 may be readily compensated by slightly turning the nipple 25 and thus adjusting the movement of the stem and valve in accordance thereith, said nipp e also serves to retain the stem in place andtogether with the Worm 22, cap 23 and half rings 28 prevents any 1eakage around the stem.

While I e ribedmyzinven ienwith some particularity, it Will be understood that I intend no limitations, except in so fares imposed by the appended claims and such changes may be resorted to as are Within the scope and spirit of following claims.

What I clajmis: i

1. An adjustable valve stem comprising a stem member, a handle, a Worm on said stem, a casing having a recess therein, a threaded nipple Within said recess,means for axial adjustment ofs-aid nipple, and a collar on said stem Wl'lOSG, movement is definedeby said nipple andthev bottom of said recess 2. An adjustable valve stem comprising a stem member, a handle, a Worm on the lower end of said stem, a casing adapted to rece1-ve,sa1;d \.v0rm-,,a cap for the casing, said casing having a recess therein, a nipple threadedly mounted Within said recess having slots therein, a reduced portion at the upperterminal ofsaidvvorm, and a ring mounted Within said reduced portion adapted to engage the bottom of said nipple upon-the upward movementof said stem and the bottom of said recess upon its downward movement.

In Witness whereof, I hereunto subscribe my name this 11th day of February A. D.

GUSTAVE HOLTER.

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