US1033278A - Air-lift. - Google Patents

Description

J'. P. SIMMONS.

AIB LIFT. APPLIOATI-Ol FILED JUIBIS, 1911. 1,033,278. Patented July 23,` 1912.

I gln l Il. |||H (41 will `'ective spreading of the UNITED sTATEs PATENT OFFICE. j

JOHN P. SIMMONS, OF SAN FRANCISCO, CALIFORNIA.

AIB-LIFT.

To all whom t may concern.'

Be 1t known that 'I, JOHN P. SIMMONS,

a Citizen 0f the United`States,-fresidig"i the city and county -otSan Francisco and State of California, have invented certain foreign substances.

As the action of the air in raising a fluid is due wholly to the lightening of the airimpregnated columnand not to any ejecting force, it becomes apparent that where,'as is usual, no special attention is paid'to the distribution of the air at the bottom outlet of the air pipe, there will be no proper or efair bubbles throughout the liquid column. But if this be attended to and the air properly distributed a better effect is had.

My invention consists in the novel-construction and relative arrangement of the air and liquid pipes at their junction as I shall now fully describe by reference to the accompanying drawings in which- Figure 1 is a vertical sect-ion of my airlift. Fig. 2 is a plan of the connecting member l, the pipes being omitted.

Though my improvement is applicable to various arrangements of the air and liquid. pipes with respect to their connection, in practical construction it takes the form ot' a single hollow member in which the ,improved constructions are contained, which `said member is adapted toreceive in its top both the air pipe and the flow pipe, and to receive in its bottom the suction pipe. l is this member or casting. In its top it has l screwed into it the air pipe 2, and the flow pipe 3v. In it-s bot-tom is screwed the suction pipe 4.

The air pipe opening, designated by 5, leads down into the cavity of the casting with a gradual widening laterally as shown by the dotted line in Fig. 2, and a gradual contracting slope longitudinally as shown in Fig. 1.

The cavity of the casting is formed in its Specification of Letters Patent.

Application filed June 12, 1911.

Patented July 23, 19192. Serial No. 832,533.

upper portionawithan enlarged circular flhamber' connecting with the smaller part of lthe air-pipe opening 5 and encompassing a downwardly projectinv' `flange 7 of the` flow-pipe-opening 8. T is langejots lower edge, is sloped upwardly away from the side of the air-pipe opening, that is to sayhthe side of the flange farthest from the air lnlet is the shortest. In the lower edge of the flange are madev all around it the air inlet grooves 9, which open from said edge upward.

The air entering the casting l from the pipe 2, will, under the pressure of' the liquid in the closed cavity of the casting, find the highest level`of the chamber 6 throughout its circular extent and will form an air pocket therein. The sup'plyfof air continu'- ing will cause the pocket to overflow, which overflow will iirstv take place at the shallowest rim of the chamber through the groove 9 at thatportion and pass into the liquid column in pipe 3 at that side. This groove nothaving capacity sufl'icient to 'pass all the air, the `\latter will next reach and pass through adjacent grooves 9 in the direct-ion of the deeper portion of the chamber rim, and so on until it reach-es and passes through the groove 9 in the'deepest portion, which groove is nearest the air inlet. The chamber 6 is contracted, as shown -by the 4 dotted line in Fig. 2, toward the side farthest from the air inlet, which construction also assists in passing some of the air through the grooves nearest the air inlet. It will thus be seen that the air instead of passing into the liquid Vcolumn in the flow pipe 3 by a single gulp, as it were, in the immediate vicinity of its entrance to the casting l,- is caused first to encircle the flow pipe and then to enter it in numerous little streams all around and well distributed, and to miX with the column of liquid in4 divided form. As the cavity of the casting -leslop'es toward the bottom and the air grooves 9 also open downward, no sand or sediment Vwill collect to prevent a steady flow of air.

and said end being provided with an annular series of openings; and an air-pipe, the inlet oi"- which communicates with said' en circling chamber at its deeper side.

2. ln an air-lift, a flow pipe having formed about its lower end an encircling chamber', said lower end projecting into said chamber with its lower edge sloped npwardly from one side to the other whereby the chamber is deeper at one side, andsaid end being provided with an annular series of grooves cnt upwardly from its lower edge; and an air pipe, the inlet oi' which communicates with said encircling chamber at its deeper side.

3. ln an air-liit, and in combinationwith its flow-pipe, air-pipe and suction-pipe, a hollow member 'fashioned to receive the How-pipe and the air-pipe in its upper end,y

and the suction-pipe in its lower end, the cavity of said member being formed at its upper portion with, an enlargement constin tilting a circular chamber encircling the fiow pipe connection and with a ange projecting downward into yand forming the inner wall of said chamber, said flange being provided with a series of openings, and said iiange having its lower edge sloped upwardly from the air-pipe inlet to the oppo site side.

4. in` an air lift, and in combination'with its How-pipe, air-pipe and suction-pipe, a hollow member fashioned to receive the iow-pipe and the air-pipe in its upper end, and the suction-pipe in its lower end, the

remera its lower edge sloped upwardly from the air-pipe inlet to the opposite side.

5. ln an air-lift, fa connecting member for the flow-pipe, air-ipe and `suctionpipe, consisting oi" a hollow piece,l receiving in its top the flow-pipe and the air-pipe, and in ite bottom the suctionepipe, said piece having its cavity nari-owing downwardly, with its air-pipe connection side widening laterally downward, and said piece having its cavity formed at its upper portion vwith an enlargement constitutinga circular chamber encircling the dow-pipe connection and with a ange projecting downward into and 'forming the 'inner wall of said chamber, said flange being provided with a series of grooves cut upwardly in its lower edge, and said iiange having its lower edge sloped up wardly from the air-pipe inlet to the opposite side. v

ln testimony whereol3 l have signed my name to this speciiication in the presence of two subscribing witnesses.

JGHN P. SIMMONS.

l/Vitnesses: l

WM. F. Eoo'rn,

D. B. RICHARDS.

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