US1218962A - Faucet. - Google Patents

Description

w. H. SMITH.

FAucET. I APPLICATION FILED APR.22| |913.

1,218,962. v Patented Ma1n'13, 1917.

f@ f MMM 'UNITE j' STATES PA EN FFIC. Y

WILLIAM II. SMITH, on CLEVELAND, oHIo.

nAUcET.

Application filed April 22, 1913;Y Serial No. 762,910.

To all wwm it may concern:

Be it known that I, WILLIAH I-I. SMITH, a citizen of the United States, residing at Cleveland, in the county ofC-uyahoga and State of Ohio, have invented a certain new and useful Improvement in Faucets, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to valves or faucets of a type especially adapted for use with tank wagons which contain gasolene, oil, or other-such liquids; and among its objects are the provision of a simple means of protection for the stem of the valve or faucet whereby it is secured against being tampered with or turned exceptby the employment of a wrench designed particularly for the purpose; the provision of such a relation between the valve aperture and the thread pitch as to facilitate the operation of the valve; the provision of a valve construction whereby splashing of liquid froml a pail or container hung thereon is greatly reduced.l While further objects and Vadvantages will ap ear as the description proceeds.

n the drawings, Figure 1 represents a plan and Fig. 2 a central vertical section of my 'improved valve or faucet, like refer ence characters being used in the'two views to designate corresponding parts.

Carried by the tank 1 is a connection 2 (both being indicated by dotsand-dash lines in the drawing), upon the outer end of which is adapted to -be screwed the internally threaded boss 3 which projects rearwardly from the globular valve casing 4. The outer surface ofthe boss 3 vis provided with a plurality of flat faces, as indicated at 3a, for the application of a wrench, wherebythe faucet may be screwed onto the connection 2. Projecting downwardly, and 'inclined slightly forwardly from the vertical center of the valve casing, is a spout 5 which is externally threaded for the application of a cap or hose connection (neither of which is shown). A horn or projection 6 extends from the front of the valve casing diametrically opposite the boss 3 and provides a support for a'pail, when such is being filled from the faucet. The location of the horn 6 forward of the discharge spout renders the latter eccentric to the pail hung on the horn, but the inclination ofthe spout directs the .liquid toward the center of the pail thus preventing the spashing and loss Vof liquid frequently occasioned with-prior devices.

.An annular flange 7 projects upwardly from the globular valve casing 4L and is internally threaded for the reception of the lower threaded end of the'cap 8. The lower central portion of the cap 8 is provided with a bore having a square, fast thread cut there- 1n, preferably of a double or triple pitch, and adapted to operate withinthis borel is a correspondingly threaded portion Vofthe shank 10 of the spigot 11, the lower end of whichterminates in a circular plug 12.V To

the underneathy face of the plug 12 is secured a pliable washer 13, Vofany suitable l"material, by a nut 14k whichis adapted to be threaded on the stud 15, depending'from` said plug. Located in the lower portion of the valve casing l and concentric with theV vertical axis of the spigot 11 is an annular valve seat 16 with which is adapted to cooperate the washer 13 when the valve is f closed. .The upper end of the shank of the spigot is reduced to provide a stem 17 which is squaredv at 18. The upper central portion ofthe c ap 8, which is occupied by the stem 17, is recessed to provide a packing gland for said stem within which packing-material 19 is retained and squeezed about said stem by a' gland nut 20 which is adapted to be threaded into the upper end of the aforesaid recess.

` The gland nut 2() is provided with a circui lar cavity 21 of a depth slightly greater than the height of the squared Iportion 18 of the stem 17 which projects thereinto through a hole in the nut. l/Vhen the valve is closed, the upper end of the stein projects but a little morethan half way through the cavity V21, and when it is fully open it is still beindicated by dot-and-dash lines in the Y drawing) having a circular head 23 of slightly less diameter than the cavity 21 and of substantially the same vertical dimension and which is provided with a. central, squared socket for the reception of the squared portion 18 of the stem i7. Vhile I have described this portion of the stem 17 as square, it is obvious that it may be made of any desired cross-sectional shape, the socket in the wrench, in any event, being made of a corresponding shape.

The connection 2 is preferably very short so as to bring the faucet as near the tank as possible and the length of the faucet is also decreased as much as possible so as to render the same as safe from accidental breakage as may be. The mobile nature of rened oils particularly of gasolene necessitates the very tight closing of the faucet to prevent leakage. Frequently this tight closing is effected by using aY screw of small pitch but this is objectionable since it causesv a considerable loss of time in opening the valve. If a thread of steeper pitch be employed, the force necessary to the tight closing of the valve can be achieved only by the use of a handle of considerable length, and the angular movement of this handle is limited by the wall of the tank since the length of the handle is greater than the distance between the stem and the tank. Accordingly I have found that the most satisfactory results are obtained by balancing the pitch of the thread against the diameter of the outlet passageway, in such wise that the movement of the handle through 180 shall effect the complete opening of the valve.

If fr represents the radius of the opening in the valve seat, and A the area we know that AITWZ This amount of opening becomes effective when the area of the annular passageway between the face of the valve and that of the seat is equal to the area of the seat opening, i. e.

L Alz-Mb in which 7i represents the height to which the valve is raised.

A=1 HTZzQWTI/ l/:Jr

Genies of this patent may breV obtained for ve cents each, by addressing the Commissioner of Patents,

But if P represents the pitch of the thread,

since the handle to bc restricted to a half turn. Therefore which indicates that the pitch should equal the radius of the valve seat opening.

Gbviously the actual possible movement of the handle is somewhat more than 180 in case the valve be adjusted properly but this is substantially the maximumY permissible movement owing to the constant change in adjustment due to wear and compression of the washer 13. Inasmuch asa ed boss for attachment to a horizontal ta'nk nipple, and a forwardly and downwardly inclined discharge spout, a circular seat at the juncture of the casing and spout, a neck integral with said casing and opposite said seat, a bonnet connected to said neck having a recess in its upper end, a valve adapted to rest upon said seat, the stem of said valve working in said bonnet and recess, pacln'ng in said recess, and a recessed nut for securing said packing in place, the end of the valve stem extend/ing into the recess of said nut.

In testimony whereof, I hereunto aix my signature in the presence of two witnesses.

WILLrAM H. sMrrn.

Witnesses:

HAROLD E. SMITH, BRENNAN B. WEST.

Washington, D. C.

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