USRE7580E - Improvement in driven or bored wells - Google Patents

Description

UNITED STATEs Parana t me Josarunqiviona sou, or AUR0RA,,ILI 1INU[S.'

|MPROVEMEMT 'N'oRiv-E OR BORED WELLS]:

Specification forming part of Letters Patent No. 139,018, dated May .10, 1873 reissue No. 7,580. dated March 27, 1577 application filed November 30,1874. r

' which is constructed of wrought-metal pipe in theusual manner. B is the filter, the upper end of which is secured in the lower end of the collar 0, as shown in the drawing. The diameter of the upper portion of this collar is such as to pass loosely through the cavity of the main tube, by which means the filter may be passed through the tube after the latter has been driven into place. D is the valve-seat, provided with an elongated conical base, which extends below the seat proper. The central portion of this base is convexed, formin g a partially-hemispherical surface, as shown at a. The diameter of the central portion of this base is slightly less than the diameter of the cavity of the collar 0, and the diameter of the upper portion is slightly less than the diameter of the cavity in the main tube. E is a packing-band, which is fitted around the hemispherical portion a of the base, and extends upward to a point slightly below the valve-seat. This packing may be made of leather or other suitable flexible material. The angle of the sides of this elongated base is such as to bring the packing against the inner corner of the wall of the collar, at or near the center of the packing, while the upper edge of the packing is made to rest in contact with the inner surface of the main tube, thus closing the space between the periphery of the valve-seat and inner surface of the tube, as well as the space between the periphery of To all whom it may concern Be it known that 1', JOSEPH E. MORRISON, now of Aurora, in the county of Kane and State of Illinois, but formerly of Willington, State of Connecticut, have invented a new and useful Improvement in Driven or Bored Wells; and I do hereby declare the following to be a full, clear, and exact description thereof, which will enable others skilled in the-art to which my invention appertains to make and use the same, reference being had to the ac companying drawing, forming a part of this specification, in which- Figure 1. is a vertical central section of my said invention; and Fig. 2 is a partial central section of the same, showing an external view of the valve-seat.

Similar letters of reference indicate like parts in both figures of the drawings.

My invention relates to that class of wells constructed by driving or otherwise sinking a metal tube into the earth, and provided with pump-valves, and a filter extending below the tube into the water, all adapted to be intro duced into the tube after it has been driven; and its objects are to facilitate the adjustment of the lower valve-seat, and to insure a watertight joint between the periphery of the valveseat and the inner side of the tube and upper end of the filter, at the junction of the latter with the valve-seat. To that end it consists in a valve-seat having an elongated conical base, the lower end adapted to loosely enthe base and inner surface of the collar, formter the cavity in the upper end of the filter, ing a complete water-tight joint under the and its upper end arranged to approximate valve-seat. F is the ordinary globe checkthe diameter of the cavity of the tube, whereby valve, which rests on the seat D in the usual the valve-seat may be dropped through the manner, and operating in connection with the cavity of the tube into the orifice in the filter ordinary lift-valve (not shown) working in the after the tube has been driven, or removed main tube A. i therefrom upward through the tube without My invention is arranged for operation in removing the filter. It further consists, in the following manner: The main tube A is combination with the conical valve-seat, of a driven into the earth to the requisite depth, packing-band of leather, or other flexible main the usual manner. Oollar G with the filter terial, arranged around the periphery of the B attached is then introduced into the cavity valve-seat, and adapted to pass through the of the tube, allowing the perforated portion cavity of the tube, whereby the space between of the filter to extend below the main tube. the periphery of the body of the valve-seat and Valve-seat D, with the packing-band E is then inner surface of the tube, and also the base of introduced into the tube, and is forced downthe valve-seat and inner surface of the collar ward through the same until the lower end of or orifice of the filter, are tightly closed. the base and packing-band enter the collar,

In the drawing, A represents the main tube, and by a further descent of the valve-seat the packin g is compressed against the inner surfac'eiof the collar and tube,forming awatertightjointbelow the seat. The'ordinary liftvalve is then introduced into the cavity of the main tube, and connected to the pump-handle in the usual manner, and the pump is complete. V v

It is obvious that this arrangement of valveseat is more readily introduced than would be if it were screwed into the collar. Besides, it can be readily removed by simply grappling its upper part with a suitable tool.

Having thus described my invention, I'do not claim the filter projecting below the main tube, for I am aware that the same is shown in patent to Duck and Whipple; but

' What I do, claimtisv a I 1 The detachable valve-seat D, having the unscl'fiw-th'readed elongated conical base, the 1 lower end-adapted to loosely enter the orifice of the filter and be driven into place, and its 'upper'eud approximating the diameter of the cavity in the tube, as and for the purpose specifiedi j 2. In combination with the detachable valveseat D, having the elongated conical base, the

fiexible packing-bandE,arranged to close the space between the periphery of the valve-seat and inner surface of the orifice in the c ll or filter, as specified Y a v JOSEPH-E. MORRISON. Witnesses:

' J. T. WHIPPLE,

J. K. MORRISON. y

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