US702006A - Well-casing and strainer. - Google Patents

Description

No. 702,006. 0 Patented lune |0,'|902.

v J. G. HUFFMAN.

WELL CASING ANDA STBAINEB.

\ I (Application filed Aug. 9, 1900.)

(No Model.) A

l 5y man,

.71,115 ai'fornj v UNITED STATES uA'MEs e. HUFEMAN,

PATENT OFFICE.

or PANA, ILLINOIS.

WELL-CASING AND STRAINER.

SPECIFICATION forming part of Letters Patent No. 702,006, dated June 10, 1902.

Application filed August 9,1900.

To all whom t may concern.-

Beit known that I, JAMES G. IIUFFMAN, of the city of Pana, county of Christian, and State of Illinois, have invented certain new and useful Improvements in Well-Casings and Strainers Therefor, of which the follow-- ing is a specification.

This invention enables water to be drawn in large quantities from different veins and to be held in reserve below the veins or waterbearing strata. It is exemplified in the' structure hereinafter described, and it is defined in the appended claims. e

In the drawing forming part of this specification the lower end of awell is shown in central vertical section.

Water-bearing strata are shown at B, and

waterless strata are shown at A.

At C are shown sections of .casing extending through the Waterless and impervious strata, and at D are shown sections of casing extending through the water-bearing strata.

At F is shown a section of casing extending below the lowest water-bearing stratum, and G represents abottom of cement or other impervious substance. y

p The plain casing is built downward as the well is excavated, the operation being carried on in the customary or any desirable manner. The mode of procedure that I advise is to build up section after s ection out of sheet metal bent to form and secured together by patch-bolts and secure the different sections together in the same manner. The sections of tubular casing should taper the thickness of the metal used, so that an end of one section may slip into the section next adjoining.

When the excavation for the well nears Aa water-bearing stratum, the precise location and thickness of such stratum are determined, and the imperforate casing is made to terminate ilnmediately above the'stratum. Then a section of tubular casing slightly smaller in diameter than the upper imperforate casing is constructed outsidethe well and provided with a ring, as E, which fills the space between the lower end of the imperforate casing and theupper endv of the specially constructed section. The p speciallyconstructed section has a number of strainerholes K formed through its wall before it is put in place, and 'such strainer-holes are Serial No. 26.365. (No model.)

closed by plates J, which are bolted to the innervsurface of the section. When the section A D is completed and providedwith closurecaps for the strainer-holes, such section is set in place in the lower end of the imperforate casing and made to extend through the watery bearing stratum. Then the parts, including ring E, are bolted together, and imperforate sections of casing are built on downward, as

hereinbefore described.

If it is desired toA draw water from more than one stratum, the

imperforate sections are extended on downward until a second water-bearing stratum is reached and another strainer-section D is introduced. This may be repeated as many times as there are veins to be utilized, and below the last vein the imperforate casing is extended downward sufciently far to form a tank or receptacle'into which the water may flow from the lowest Vein when the water in the well above such lower vein is exhausted. In l the drawing the limits of the paper necessi- `holes K, and rings I are screwed onto the inner ends of the strainers and secured to the casing-wall in place of plates J. In the drawings only enough strainers and strainer-holes are shown to illustrate the principle of my invention; but the number that may be used is llimited by nothing but the extent of the casing-section extending through the water-bearing stratum, and the length of each strainer may be as great as desired. One closureplate after anotheris removed, strainer after strainer is inserted until the supply of water is suicient to meet immediate demands, and the openings K not required are'l'eft closed to meet some possible demand of the future, y

In passing through the water-bearing strata the strainer-section is forced belowj the gravel and into the clay to a depth sufficient to prevent the head of Water from forcing water under the strainer-section. 4

The strainers penetrate the water-bearing Ioo strata horizontally to any desired extent. Their number is almost illimitable, even in one Water-bearing stratum, and they may be used in a plurality of strata. The receptacle below the lowest vein provides for drainage of the Vein when the water is exhausted from the upper part of the casing, and it also acts as a supply-tank in which a considerable quantity of Water may be held in reserve.

The strainer may be placed in the lower part of the vein of Water, Where the low is most free, and before inserting a strainer the loam and fine sand may be stirred up and permitted to run into the Well, leaving coarser sand and gravel to take its place and improve the flow of Water to the strainer.

I claim l. A tubular Well-casing having strainerholes communicatinghorizontally with waterbearing strata, closures for the holes, and strainers adapted to the holes when the closures therefor are removed, substantially as described.

2. A' tubular Well-casing having strainerholes communicating horizontally with Waterbearing strata, closure-plates for the holes inside the casing, bolts to hold the closureplates in place and strainers having securingrings, bolt-holes of which coincide With the bolt-holes of the closure-plates, substantially as described.

3. In a tubular well-casing a diametricallydiminished section secured. in place by an intervening ring, and horizontal strainer-tubes insertible through normally closed holes in the diminished section, substantially as described.

4. The combination of a tubular Well-casing having holes in its side Walls and strainers of smaller diameter than the holes of the casing inserted through such holes from the inside outward and rigidly secured therein.

5. Theoombination ofatubularWell-casing havin g holes in its side Walls,strainers smaller in diameter than the holes of the casing extended through such holes from the insideof the casing outward and iianges on the inner ends of the strainers secured to the inner surface of the easing.

In testimony whereof I sign my name in the presence of two subscribing Witnesses.

ROSA VOELCKER, R. E. DIeKINsoN.

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