US1799969A - Valve construction - Google Patents

Description

7, 1931. .1. F. GODDARD VALVE CONSTRUCTION Fi led Oct IS, 192s 2 Sheets-Sheet l April 7, 1931. J. F. GoDDARD y VALVE CONSTRUCTION 2 sheets-Sheen 2' Filed oct, 5, 192e Patented Apr. 7, 1931 UNITED .STATES PATENT OFFICE JOHN F. GODDARD, OF DETROIT, MICHIGAN, ASSIGNOR TO THE TIMKEN-DETBOIT COM- PANY, 0F DETROIT, MICHIGAN, A CORPORATION 0F MICHIGAN VALVE CONSTRUCTION Application led October 5, 1928. D Serial No. 310,483.

` is wholly enclosed in the main valve housing,

.thereby dispensing with packing devices'and in providing the valve with an actuating plunger disposed at the long end of a valve operating lever, whereby the valve is normally kept closed by the weight of said plunger. The invention further consists in the valve and in the combinations and arrangements of parts hereinafter described and claimed.

In the accompanying drawing,

Fig. 1 is a top plan view of a valve construction embodyingk my invention, a portion of the valve housing being shown in horizontal section; I

Fig. 2 is an elevation, a portionV being shown in vertical section; v

Fig. 3 is a vertical sectional view on the line 33 of Fig. 2; and

Fig. 4 is a fragmenta sectional view showing a modified form o valve stem.

A valve housing l is provided with ay depending inlet portion 2 into which is threaded the end of an oil inlet pipe 3. l., Said inlet portion 2 is angularly disposed and opens into a transversely extending chamber 4 into which extends a hollow plug 5 that is threaded into the housing and is provided with a skeletonized body portioncovered with a tubular screen 6. An upwardly extending passageway 7 extends from said strainer 6 into the elongated housing.

Threaded into the top of said housing 1 at the end opposite the inlet 2 and strainer 6 is a tubular memberL 8 that is provided with a seat 9 for a valve 10 that is mounted on the upper end of a stem 11. The lower end of said valve stem 11 is provided with a notch 12 to sition. Washers 31 are fit over a pin 13 carried by a bifurcated operating lever 14, the valve stem litting between the two arms of said lever. Said operating lever 11 is pivotally mounted on a pin 15 secured in the housing 1 adjacent to the valve stem 11, one end of said pin resting in a recess 16 in one side of said housing and the other end resting in a recess 17 in a cap 18 screwed into the other side of the housing. Thus the valve stem 11 is mounted on' the short arm of the operating lever 14. At the end of the long arm of said lever is a pin 19 that fits in a notch 20 provided in the lower end of a plunger 21. The body of said plunger 21 is hollow and is filled with lead 22 or other heavy material, the outer shell or body 2l being of magnetic metal. Threaded into the top of the housing 1 is a ring 23 in which is secured the lower end of a tube 24 that encloses said plunger 21. In the upper end of said tube 24 is a filler disk 25 that is provided with an upwardly extending threaded end f portion 26. Mounted on the housing 1 is a cap 27 that has a hole tting over said threaded portion 26 and a nut 28 on said threaded portion secures the cap in place. Mounted in said cap 27 is an electric'solenoid coil 29. A spring 30 in the top of the cap 27 bears against'the top of the coil 29 to hold it in poplaced above and below said coil.

Said coil 29vis inthe circuit of an electric motor or'other electric device, such as the electric motor that operates the pump of an oil burner. Thus when the electric motor current is turned on, current passes through the coil 29 and causes the magnetic shell portion of the plunger 21 to be attracted, raising the long arm of the operating lever 14 and depressing the short arm to open the valve. When the current is turned off the plunger 21 falls of its own weight to closc the valve. The weight of the plunger and its position at the end of the long arm of the operating lever provide a great closing force for the valve, insuring its firm seating at all times.

In the4 form shown in Fig. 2, the valve proper comprises a disk 10 of soft valve material that engages a flat valve seat 9. In the modified construction shown in Fig. 4, the valvecomprises a conical head 10a that engages a seat 9a provided in the valve seat member 8.

The valve mechanism is easily assembled as ollowsflhe valve operating lever 14 is inserted through an opening in the housing body that is afterwards closed by a threaded plug 32. After the operating lever is in the ousing, its pivot pin 15 is passed through the pivot opening of the lever and one end seated in the recess 16 in the housing body. The other end is then seated in the recess 17 in said cap 18 Whichis then screwed into the housing. The valve stem 11 is inserted through the top of the housing and engaged with the valve pivot pin 13 of the operating lever 14, after which the valve seat member 8 is screwed into the housing. The solenoid plunger 21 is inserted through the top of the housing and engaged with its pivot pin 19 at the end of the valve operating lever 14. 4The ring 23 with its tube 24is placed over the plunger and screwed into the top of the housing. The solenoid coil 29 with its washers 31 is then placed ovensaid tube. The

cap 27 with its retaining spring 30.or the coil is then` put in place and the securing nut 28 screwed onto the end of the threaded extension 26 of the plunger tube.

The above described construction has numerous advantages. The oil passageway is quite large at all points and' follows a tortuous course, thereby reducing the velocity of the oil and facilitating the deposition of any sediment contained therein. The strainer is easily removed for cleaning and inspection. When the strainer is removed, oil contained in the housing ows out throu h the strainer opening, thus flushing out t e bod ofthe valve. The valve operating mec anism is wholly contained in the valve housing, thereby, eliminating expensive and unsatisfactory packings. The valve is firmly seated without the, use of 'spring devices.

Obviously, numerous changes may be made without departing from the invention and I do not lwish to be limited to the precise construction shown.

What I claim is 1. A valve construction comprising a valve housing, a valve operating lever therein, a valve disposed at the end of the short arm of said lever and adapted to be closed b the raising of said short arm, a solenoid p linger at the end of the long arm of said lever and a solenoid coil for raising said solenoid plunger to o en .said valve said plunger comprising a ollow body' of magnetic metal filled with a heavy material.

2. A valve construction comprising a valve housing through which liquid passes, a-valve operating lever therein, a valve 'disposed at the'end of the short arm of said lever and adapted to be closed by the raising of said short arm, said valve com ri a disk, a valve seat member secure to said housing and having a flat seat portion to cooperate with said valve, a solenoid plunger at the end of the long arm of said lever and a solenoid coil for raising said solenoid plunger to open said valve.

3. A valve construction comprising a valve housing, a valve o erating lever therein, a valve disposed at t e end of the short arm of said lever and adapted to be closed by the raising of said short arm, a solenoid plunger at the end of the long arm of said lever, a tube for receivin sald plunger, the upper end of said tube eing closed and the lower end opening into said housing, a solenoid coil resting on said housing and surroundlng said tube, a cap covering said tube and coil, said tube having a threaded extension projecting through said cap and a nut on said threaded extension.

4. A valve construction comprising a valve housing, a valve operating lever therein, a

valve disposed at the end of the short arm of said lever and adapted to be closed by the raising of said short arm, a solenoid 'plunger at the end of the long arm of said lever, a tube for receiving said plunger, the upper end of said tube vbeing closed and the lower end opening into said housing, a solenoid coil restin on said housing and surrounding saidltu e, a cap covering said tube and coil, said tube having a threaded extension projecting through' said cap, a sprin in said cap for holding said coil in place an a nut on said threaded extension.

Signed at. Detroit, Michigan, this 1st day ofVA October, 1928.

" JOHN F. GODDARD.

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