US974027A

US974027A - Cock.

Info

Publication number: US974027A
Application number: US47769709A
Authority: US
Inventors: David Craig
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-02-13
Filing date: 1909-02-13
Publication date: 1910-10-25
Anticipated expiration: 1927-10-25

Description

' d f M' D. CRAIG. u

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u APPLICATION FILED FEBJS. 1909. 974,027. Patented Oct. 25, 1910.

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K l APPLIGATION FILED H343, 1909.` v 974,027. Patented 0013.25, 1910.

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DAVID CRAIG, OF MELROSE, MASSACHUSETTS.

COCK.

T o all whom t may concern.'

Be it known that I, DAVID CRAIG, a citizen of the United States, and resident of Melrose, in the county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Cocks, of which 'the following is a specification.

This invention relates to cocks and consists in the improvements hereinafter fully described and specifically pointed out in the claims.

lIn the accompanying drawings which illustrate certain embodiments of my invention,-Figure l is a side elevation of a cock embodying my invention in one form; Fig. 2 is a sectional view of the cock shown in Fig. l; Fig. 3 is a side view of a modified form of an operating lever and its associated parts; Fig` l is a side vievvr of another modification of an operating lever and its associated parts; and Fig. 5 is an end view of the parts shown in Fig. 4.

Referring to the drawings, A represents the outer casing, having the inlet port a, the outlet port a and the vertical branch a2. A strainer a3 may be provided if desired. Independent of the outer casing is a valve casing B, preferably of generally cylindrical form adapted to be'inserted in the outer casing through the end of branch a2. The valve casing B comprises a valve chamber 6 located between the inlet and outlet ports j of the outer casing, a discharge chamber 6 and a cap 62 adapted to engage and close the end of branch a2. 'Ihe valve chamber 6 is provided with inlet openings 63, an outlet opening 6*, and a valve seat 65. The valve 6G is mounted on valve stem 67, and is normally urged toward its closed position'by coil spring 6g which abuts at one end against the under side of valve 6G and at its other end against the perforated abutment 69, screwed into the' bottom of the valve chamber, which abutment also serves as a guide for the lower end of the valve stem.

The discharge chamber 6 is provided with outlet ports 61 which communicate with the outlet port a of the outer casing through the space between the valve casing and the outer casing. The valve stem 67 is reduced in diameter as shown at 611 so as not too much to obstruct the outlet opening 64 when the valve is opened.

The lower end of the valve casing is ex- Speccation of Letters Patent. i

Application filed February 13, 1909.

Patented Oct. 25, 1910.

Serial No. 477,697.

packing 614 is inserted, the stuffing box being closed by nut 615.

With the foregoing construction, should it be desired to gain access to the valve or valve seat or any of their associated parts for the purpose of cleaning or repairing them, all that needs to be done is to remove the inner valve casing B which carries the valve, the valve seat, the valve operating spring, etc., all of which are separable from the outer casing A as a unit. The outer casing A is then an empty shell and its interior is also readily accessible for cleaning since it unobstructed by the valve seat which usually forms a part of such outer casing.

C is the operating lever or handle, preferably made hollow and having a rod o suitably secured therein. The valve stem 67 projects through anv aperture o in the under side -of lever C and pivotally engages rod c. At the end of lever C is a downwardly extending projection herein shown as a hook c2, which extends around the periphery of the disk-like projection c3 which is fast upon the valve casing and engages the under side thereof. Thus the lever C may be turned or swung angular'ly with relation to the casing, and in any angular position the projection c2 will engage the under side of disk o3, the point of engagement constituting the fulcrum of the lever when the same is pressed downward to move the valve stem or rod 67 endwise to open the valve. y

In the'modilication shown in Fig. 3, a second projection c4, opposite projection c2, is provided engaging the under side of disk 03. Vith this construction the valve may be opened either by pressing the lever C downward or lifting it upward, the point of engagement between projection or hook c'l and disk c3 constituting the fulcrum of the lever when the latter is lifted upward, and the operation being the same no matter in what angular' position with relation to the Caslng the lever may be.

In the modification shown in Figs. t and 5 I have shown means whereby the valve will be opened by pressing it downward, or b v lifting it upward, or by swinging it angularly with relation to the casing, so that no matter whether the operator swings the handle in a horizontal plane or in a vertical plane, he will succeed in opening the cock. This means-consists of the same device as shown in Fig. 3 to respond to movement of the lever in a vertical plane, and of cams ci' on the under side of disk c3, upon which the hooks 2 and 0^* ride when the lever is swung laterally causing 'the valve rod f to be moved endwise, precisely as though the lever had been pressed down or lifted up instead of being swung angularly in a horizontal plane. The cams c5 may be provided if desired with dwell surfaces o at their highest points, to engage and hold projections c2 and 0fL and prevent them from riding down the cam surfaces again under the influence of spring b3.

The strainer a3 is of any suitable material such as wire fabric shaped in a dome-like or thimble-like form, the lower end being open and fitting over a boss d on the end of the plug D. Thus the strainer extends across and conforms substantially to the shape of the duct through the fitting or casing A. The plug D is screwed into t-he casing A at the bottom of the elbow or bend of the casing where solid particles carried into the casing would by gravity most naturally tend to lodge. `When it is desired to clean or replace the strainer or to clean t-he bend of casing A, all that is necessary to do is to unscrew the plug D from the casing and withdraw the plug together with the strainer which is carried thereby.

I claim:

1. A cock comprising a valve casing having therein a valve seat and valve, a rod to operate said valve movable endwise and projecting through said valve casing, a projection upon said casing, an operating lever engaging said rod adapted to move the same endwise, and a projection upon said lever extending downward and engaging the under side of the projection on the casing, the'point of engagement between said projections constituting the fulcrum of said lever.

2. A cock comprising a valve casing having therein a valve seat and valve, a rod to operate said valve movable endwise and projecting through said valve casing, a flange upon said casing, an operating lever engaging said rod adapted to move the same endwise and also to be swung angularly with relation to said casing, and a projection upon said lever extending downward and engaging the under side of said iiange, the point of engagement between said projection and said flange constituting a fulcrum for said lever in any angular position of said lever.

3. A cock comprising a valve casing having therein a valve seat and valve, a rod to operate said valve movable endwise and projecting through Said valve casing, a disklike flange upon said casing, an operating lever engaging said rod adapted to move the same endwise and also to be swung angularly with relation to said casing, and a pair of opposed hooks upon said lever each extending around the edge of said iange at opposite sides thereofl and engaging the under side of the flange, whereby the valve will be opened either by pressing the lever toward or away from the casing.

4. A cock comprising` a valve casing having therein a valve seat and valve, a rod movable endwise to operate said valve, an operating lever engaging said rod and adapted to be swung in planes both parallel with and transverse of said rod, and means whereby movement of said lever in any of said planes will operate said valve through Said rod.

A cock comprising a valve casing having therein a valve seat and valve, an operating lever connected with said valve adapted to be swung in two or more planes with relation to said casing, and means whereby movement of said lever in any of its planes of movement will operate said valve.

6. A cock comprising a valve casing having therein a valve seat and valve, a rod to operate said valve movable endwise and proj ecting through said easing, a disk-like flange upon said casing, an operating lever engaging said rod adapted to move the same endwise, said lever adapted to be swung in two or more planes with relation to said casing, a cam upon the under side of said flange, and a projection upon said lever extending downward and engaging the under side of said fiange, whereby movement of said lever in any of its planes of movement will operate said valve.

7. A cock comprising a valve casing having therein a valve seat and valve, a rod to operate said valve movable endwise and projecting through said casing, a disk-like flange upon said casing, an operating lever engaging said rod adapted to move the same endwise, said lever adapted to be swung in two or more planes with relation to said casing, a pair of oppositely disposed cams upon the under side of said flange, and a pair of oppositely disposed projections upon said lever each extending downward and engaging the under side of said flange at opposite sides.

8; A cock comprising a valve casing having therein a valve seat and valve, a rod to operate said valve movable endwise and projecting through said casing, a disk-like flange upon said casing, an operating lever engaging said rod adapted to move the same endwise, said lever adapted to be swung in two or more planes with relation to saidcasing, a cam upon the under side of said flange, and a projection upon said lever extending downward and engaging the under side of said tlange, whereby movement of said lever in any of its planes of movement will operate said valve, said cam having a dwell surface at its top adapted to hold said projection.

9. A cock comprising an outer casing havsaid branch and to be secured therein between said inlet and outlet ports, said valve casing comprising a valve chamber having therein a valve seat and valve, a discharge chamber provided with outlet ports, and a cap adapted to engage and close the outer end of said branch, a valve stem extending through said discharge chamber, and an operating lever at the end of said valve casing engaging said valve stem.

Signed by me at Boston, Massachusetts, this 5th day of February, 1909.

DAVID CRAIG.

vVitnesses CHARLES D. VVOODBERRY, ROBERT CUSHMAN.