US1680245A - Valve device for use with pumping structures - Google Patents

Description

Aug. 7, 1928.

' A. PENN VALVE DEVICE FOR USE WITH PUMPING STRUCTURES I Filed May '7, 1925 Patented as. 7, 1928 g UNHTED STATES lbttmdd FATE T @FFEQE.

ALBERT PENN, OF DES MOINES, IOWA, ASSIGNOR OF ONE-HALF T0 RALPH PENN, OF

DES MOINES, IOWA. i

i VALVE DEVICE FOR USE WTTH PUMPING STRUCTURES.

Application filed May-7, 1923. Serial No. 637,181.

,The object of my invention is to provide a valve device for. a, pumping structure of a kind described which will be simple in its construction and operation, thereby enabling it to be manufactured and marketed at a comparatively low cost.

More particularly, my inventionrelates to.

a valve device of this character for a pump structure, wherein theparts of the valve will so operate upon the breaking of the electric circuitto the motor for the pump that the valve will release any: back pressure against the pump.

"Stilla further object isto provide for an unloading tank between a receiving tank and a compressor pump, a valve means in connectlon therew th for permitting the contents or a1r pressure within the unloading tank to be discharged upon the stopping of the pump. Still a further object is to provide means arranged in connection with an electric circuit for manipulating the valve device in connection. with the unloading 'tank, for opening the valve structure upon the breaking'of; the electric circuit from any. cause.

Still a further object is to provide a solenoid coil, arrangedin series with the rest of the electric circuit having a movable ar mature or core for operating a lever which will open thevalve structure used in connection with the unloading tank for releasing the contents. thereof upon the breaking of thecircuit. e

. With these and otherobjects in view, my invention consists in the construction, arrangement and combination of the various parts of my device, whereby the objects contemplated are attained as hereinafter more fully set forth,- pointed out in my claim and illustrated in-v the accompanying slightly modified form of connection be-- tween the moving armature and the lever.

In the accompanying drawings, I have used the reference numeral 10 to indicate an. ordinary compressor pump whlch is mounted. on a base. An electric motor 11 is provided and is connected to the compressor pump 10 by means of a belt 12.

A receiving orstorage tank 13 is connected-to an unloading tank 14 by means of the passage way or pipe 15. Acheck valve 16 is mounted in the passage way 15 for normally closing the passage way. The unloading tank 14 is connected to the pump by means of apipe 17.

From the construction andarrangement of the parts just described it will be seen that the unloading tank is mounted between thereceiving tank 13 and the pump 10. It will also be seen that when the pump 10 is operated it will cause the compressed air to pass through thepipe 17 into the unloading'tank l4: and then into the receivingtank 13. The purpose of the unloading tank will be hereinafter more fully set forth.'

The motor 11 is connected to an electric circuit which includes a source ofenergy 18. Wires l9 and 20 lead from the source ofenergy 18 to aknife switch 21. Thewire 20 then passesthrough theknife switch 21. and leads to an automatically operated switch 22. The automatic switch 22 is of a type illustrated by my co-pending application filed October 7, 1922, Serial No. 593,087.

Thewire 20 leads to a bindingpost 23 on the switch 22. Thewire 19 leads to a binding post 24: on the switch 22. Thewire 19 then passes from the binding post 25 on the switch 22 to the motor 11; Thewire 20 leads from the bindingpost 26 on the switch which is mounted 22 to a-bindingpost 27 on asupport 28.

Thiswire 20 then passes through asolenoid coil 29 and is brought back to a bindingpost 30 on thesupport 28. Thewire 20 then leads from the bindingpost 30 to the electric motor 11.

It will thus be seen that thesolenoid coil 29 is connected in series with the rest of the electric circuit. It will also be seen that when theknife switch 20 is in closed position and when the switch 22 is in closed position, the motor 11 will be operated.

A pipe 31 leads from thereceiving tank 13 to the diaphragm chamber 32 of the switch 22. The switch 22. is so arranged thatwhen the pressure within the receivingtank 13 reaches a predetermined amount, it will cause the switch 22 to be opened for breaking the electric circuit.

.When the pressure or contents of the re-.

ceiving tank lowers to a predetermined amount, then it will cause the switch 22 to move to closed position for making an electric circuit for operating the motor and the pump. A supply pipe 33'leadsfromthe receivingtank 13. V

The solenoid coil29 issecured to thesupport 28 by means of thescrews 34. Thesupport 28 may be mounted on a wall or any.

other suitable support by means of thescrews 35. y I l.

A solenoid coil is provided with a movingarmature 36 Which'has its lower end rest upon-one end of alever 37 pivoted on the"support 28 by means of thescrew 38.

When thesolenoid coil 29 is energized, it

will 'holdthearmature 36 in its raised p0sition and thelever 37 will also beheld in its raised position, as shown in solid lines in Figure 2 of the drawings. g

-Apipe 39 leads'f-rom the unloading tank 7 14 toavalve structure 40. Thevalve structure 40 is mounted on abracket 41 which in turn is fixed'to thesupport 28 by means of' a screw or the like 42. Thevalve structure 40 includes avalve seat 43 having amovable valve member 44 arranged to -normally-rest upon-theseat 43.

portion 48 in which is extended apin '49" formed on thevalve member 44.

Adischarge opening 50 is in communication with theopening 48. Arod 51 is mounted in thevalve structure 40 and has its upper end adjacent to the lower end "of thepin 49 and has its lower end on thelever 37 Whenever thesolenoid coil 29 is deenergized, it will allow thelever 37 to swing on the pivot 38 (due to the weight of the-armature), for forcingthe'rod 51 upwardly.

Movement of therod 51 upwardly will cause it to engage the pin49 for unseating thevalve member 44 and permit air within the unloading tank 14 to pass out through thevalve structure 40.

the moving armature 36' as extending through anopening 52 formed in thelever 37; Pine 53 project through the moving.armature 36 on each side of the lever: 37 for holding thearmature 36 in proper position relative to thelever 37. 1' i r 7 Practical operation. Q I Assuming that the pump 10 is operating for pumping air into the receivingtank113, it will first pump air into the unloadin tank 14. Assuming that the pressure in t e re.-

ceiving tank 13 is 50 pounds, then it'will require a greater amount of pressure in the manent breaking of the. circuit In Figure 3 of the drawings, I have shown" unloading tank 14 before thecheck valve 16 will open for permitting the air from the unloading tank to pass into the receivingtank 13.

The unloading tank, whenever the motor not operating, is under only 4 atmosphere 1 pressure and for that reason, when the motor 11 starts it is able to gain ts full speed be'- forethere is any appreciable back pressure against the pump 10.

When the pressure in the receivingtank 13 reaches a predetermined amount it-wlll cause the switch 22 to operatefor breaking theelectric circuit A. As soon as the electric circui t Aisbroken thearmature 36 will drop, thus raising therod51 and opening thevalve structure 40.. Any ressure within the unloading tank 14 will e relieved by opening thevalve structure 40,

When the pressure in thetank 13 drops. to a predetermined amount, then the switch 22 will operate for making a circuit for operatingthe electric motor. The establishingof the circuit will energize the solenoid coil and move the armature to position'forper- V The mitting the valve structure40 to close. pump will then operate and will first fill the unloading tank 14 before any air is passed into the receivingtank 13.' The motor 11 will. gain its full speed before it willbe necessary from the tank13.

A to overcome back pressure When theknife switch 21 is opened for breaking the circuit, it will immediately 7 cause thelever 37 to swing on'its pivot for:

opening the valve structure40-and-releasing the pressure from the unloading. tank 14.

It will be seen that thevalve structure 40 is operated either upon 'theropening or closing of the automatic switch 22 or, on the opening or closing of theknife switch 21."

It will also 'beseen that should a "wire become broken, burned'out, or' if the circuit is broken in any other way, the valvestructul e 40, will be operated as beforementioned.

lli lS quite. an advantage; to-havea structure wherein the parts will automatically operate either uponthe temporary breaking of the circuit, as by the switch 22,- or the perby means of the manually operated switch 21-.

It will be understood'that'the pumping structure may be used for pumping gases of all kinds and may also be used in Water systems. When the structure is usedin water systems, the switch 22 is operated by a float structure and thevalve 40 is positioned below the unloading tank 14 for draining thetank- It will be seen that the elimination of any appreciable back pressure against-the'pump 10- until afterthe motor 11 has gained a suflicient amount of. speed, is quite an advantage A small size motoris capable of 'dolng as goo'dwork as a large motor, when there is nobackpressure against starting.

The elimination of back pressure will prevent burning out of a motor which might occur due to back pressure preventing it from starting properly.

Frequently, heretofore, it has been necessary to use over size motors to do a particular job in order to get proper starting ability. My structure overcomes this difficulty.

Some changes may be made in the construction and arrangement of the various parts of my invention, Without departing from the real spirit and purpose of my invention and it is my intention to cover by my claim, any modified forms of structure or use of mechanical equivalents which may be reasonably included within its scope.

I claim as my invention:

A valve structure of the class described comprising a valve body, a valve seat therein, a valve member adapted to coact therewith, a spring interposed between said Valve member and said valve body for causing such coaction and electrically operated means for allowing said spring to maintain said valve seated, said means comprising a solenoid, an armature therein, a pivoted lever having said armature normally resting on one end. thereof whereby energization of said solenoid magnetizes the armature and causes it to exert a pull on said lever, the other end of which is adapted to coact with said valve member for opening the same when the solenoid is deenergized.

ALBERT PENN.

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