Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS73414 A
Publication typeGrant
Publication dateJan 14, 1868
Publication numberUS 73414 A, US 73414A, US-A-73414, US73414 A, US73414A
InventorsBollin C. Welch
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 73414 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

@intuir tapes datrnt @fitta ROLLIN C.' WELCH AND JOSEPH B. MILLER, OF BD'FFALO, NEW YORK.

' Letters PatentlNo. l13,414, dated January 14, 1868.


l @its Sfhmle referrals. iu tipa trttrtt gnant mit making pnt nf vthe are.


I Beit known that we, ROLLIN C. WELCH and JOSEPH B. MILLER, of Buffalo, in the county of Erie, and State of New York, have invented a new and improved Tube-Well; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being hadto the accompanying drawings, making a part of this specification, in which- I Figure 1 is a diametrical section of the tubes in position for penetrating the earth.

Figure 2 isa similar view of the same parts, showing the outer casing drawn up andv latched as it would appear whenv the well is finished. i

'Similarletters of reference indicate corresponding parts in the two gures.

This invention relates to certain novel improvements on what are denominated tube-wells, wherein pipes, which are pointed on one end, are driven into the earth the'required depth 'to obtain water, which pipes are usually perforated near their lower or pointed ends, and sometimes provided with strainers or wire-cloth cylinders, covering the perforations or passagesinto the pipes, so as to prevent the entrance of earth,tsand,or foreign substances of any kind. One great objection to these wells, as hitherto constructed, is that the perforations which are made for the entrance sooniill up on account of thc wantof a suliciently enlarged chamberA between the lower portion of the tube and the wall of earth surrounding it. Another serious objection to this mode of obtaining water, as hitherto adopted, is that there is not a sufficiently large reservoir of water left at the foot of the well-tube to keep the pump supplied.

The object of our invention is to obviate said objections by ,having anexternal and movable casing upon the Well-tube, which casing shall enclosethe lower part of said tube during its entranc'e'into the ground, and

then, by being partially withdrawn, it shall expose so much of said tube as is perforated for allowing of the entrance of water into it, at the same time it shall leave a chamber between the perforated portion ofthe tube and the wall of earth surrounding it, as will be hereinafter described. l

l To enable others'skilled in the art to understand our invention, we will describe its construction and operation. i

Inthe accompanying drawings, A represents a tube-or pipe, which may be made of any required diameter or length, according to the requirements of the case. This pipe A has a solid conical point, B, formed on or secured to its lower end, the diameter of the base of the cone being considerably greater than that of the pipe to which it is secured, as shown in gs. 1 and 2, For some distance above'the cone B the pipe A is perforated for the entrance of water into Vit from a chamber or reservoir, a, of water, which .surrounds said perforated portion. At a suitable point or points upon the pipe A, above its perforated portion, cylindrical enlargement is formed, the object of which is to serve, in conjunction with a shoulder at c,upon an external casing, D, as a guide for this casing, so as to prevent any lateral play thereofvwhile upon the pipe A. The interior diameter of the annular shoulder-guide c, which is upon the lower` end of-the casing D, is slightly greater than the external diameter of the pipe A, so that this latter may receive upon its perforatedl portion a cylinder, e, inade of woven wire or some other rcticulated substance. lThe casing D is made so that it shall have a free longii tudinal play upon the pipeA, and so that its lower shouldered end can restnpon the enlarged end or head of the cone B during the operation of driving the pipes into the ground, as shown in hg. 1. vWhen pipe A, with i its casino is driven into the nround as far as desirable the casinfr D is then drawn u suiiicientl far4 to ex ose a a v a P that portion of the pipe A which is perforated-and co\'ered"with a strainer, as shown in iig. 2, when it is caught by a spring-latch, g, and prevented ,fronisinking again@ The latch g has its under face bevelled, and this latch is secured on the end of a spring, g', inside of pipo A, so as to project through a hole, which ismade through this pipe, as shown. When casing D is drawn up"to the point mentioned, it will leave below it a chamber, a, which surrounds the perforated portion of the pipe A and forms a reservoir for supplying the pump with water. This chamber also loaves thcpassagcs in pipo A, free from obstruction, so that the supply of water will not be interrupted. The formation of shoulder-guideslupon the pipo A and casing D admits of making this casing, and consequently the chamber a,`of any required capacity, irrespective of the diameter of the pipe A.

, By ourinvention we secure protection to the strainer-on the inner tube while putting down the well. We secure by the shoulder-joint an opentube throughout the whole length, enablingus to learn a. pleasure, by

sounding, when water has been reached, and also to insert an instrument toforce the inner tube out of the casing'or shield and hold it down when we wish to raise the shield. We secure, by fastening the solid point to 'the tube by a. rivet or screw, the advantage of removing the shield or casing from said tube at pleasure when the parts are'out ofthe ground. By means of tbe spring-latch the casing is prevented from slipping back when drawn up to expose the strainer, and by the shoulder-joint, in connection with a. wide cylindrical enlargement, as described, a irm connection of the parts is made, and the casing properly held in place. Tlie shoulder on the lower end of the casing alsoy prevents the entrance of earth or sund into the pipe or easing..

Having described our invention, what we claim as new, and desire to secure by Letters Patent, is

The imperfornted external tube D, connected with 'the perforated internal tube A b y means of the inner collar c and the outer collar sothnt the tube D comes in contact with an external shoulder of a. conical plug, B, of the tube A, during theopcration of forming the enlarged Water-,chamber a, and rests upon :L spring-catch when the tube-well is adjusted for operation substantially in the manner nnrl for the purpose described.





Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5449045 *Mar 4, 1994Sep 12, 1995Cordry; Kent E.Drive point device
US5570747 *Apr 5, 1995Nov 5, 1996Cordry; Kent E.Drive point device
US5669454 *Sep 6, 1996Sep 23, 1997Cordry; Kent E.Drive point device
US6230820Dec 16, 1997May 15, 2001Kent E. CordryUniversal drive point device
US6953092 *Dec 27, 2002Oct 11, 2005Petroleo Brasileiro S.A. - PetrobrasApparatus and method for free-fall installation of an underwater wellhead
US20030121668 *Dec 27, 2002Jul 3, 2003Junior Cipriano Jose De MedeirosApparatus and method for free-fall installation of an underwater wellhead
US20110072927 *Sep 30, 2009Mar 31, 2011Gilbas Russel AMethod and apparatus for attachment of a lead screw to a motor shaft
Cooperative ClassificationE21B7/26