US412707A - Justin it - Google Patents

Description

(No Model.)

J. vH. HILL.

EXTRAGTOR FOB. TUBEk WELLS.

Patented Oct. 8, 1889.

12d/meow N. PETERS. Phoumugmpher. Wmhngian. D. C.

UNITED STATES 'PATENT OFFICE..

JUSTIN H. HILL, or CHICAGO, ILLINOIS.v

EXTRACTOR FOR TU BE-WELLS.

' SPECIFICATION forming part of Letters Patent No. 412,707, dated October 8, 1889.

Application filed April 19, 1889. Serial No. 307,816. (No model.)

To aZZ whom it may concern,.-

Be it known that I, JUSTIN H. HILL, avciti-- zen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Extractors for Tube-Wells, of which the following is a specification, reference being had therein to theaccompanying drawings, in which- Figure 1 represents a transverse vertical sectional view of thelower end of a tubewell, showing-my improved extractor in the actof withdrawing a packing-ring therein; Fig. 2, a similar view of the extractor in detail; Fig. 3, a transverse sectional view on the line :c `of Fig. 2, looking downward; Fig. 4;, a detail perspective view of one of the spring-catches.

The invention has for its object the production of a simple and effectual device for withdrawing or extracting the rubber rings located a't the bottom of tube-wells whenever the rings become worn or useless from long usage, and it is therefore desired to replace them with new ones; and it consists in certain novel features ofwonstruction and arrangements of parts, t at will be fully hereinafter set forth, and particularly7 pointed out in the claims appended.

The invention is extremely simple, and will be fully understood and appreciatedfrom the drawings, when taken in connection with the following description. Y

The letter A designates the cylinder, and B the pointed strainerrof the well, both of which parts are of the usual construction. Within the cylinder or tube A, and resting l on thetop of the strainer, is the rubber packing-ring C, which is' of the usual construction, with the exception that it is beveled at its upper inner edge, as shown at a in Fig. l, to facilitate the action of the spring extractors or catches.

D designates the tubular extracting-rod, which is provided at its lower end with external screw-threads. Screwed on the lower end of this tubular rod is a vertically-adjustable stop collar or `sleeve E, the lower end of which strikes and rests upon the upper end of the rubber ring C when the extractor-rod is forced down in the well, that portion of the rod below the adjustable collar projecting through and below the ring, as shown. By adjusting this stop-sleeve up or down rings of different lengths may be accommodated, as is evident.

The spring-catches F consist each of a leafspring portion b and a beveled nose or head b', and they are inserted in the tubular rod, their beveled noses downward. There are preferably three of these catches secured in the tube at equal distances apart. preferably held securely in the tube b'y means of a triangular block G, secured in the tube a short distance from its lower end by means of a screw c, which latter is passed through the tube and tapped into the block, as shown, the upper ends of the spring portions b being secured to the respective faces o'f the triangular block. The beveled noses of the catches project normally out through slots in the lower end of the tubular rod, so that when the device is forced down in the well they will automatically catch under the lower end of the ring, the bevel a on the rubber ring and the bevel on the noses serving to facilitate in pressing the catches inwardly to pass the ring, as is obvious. When the device is thus inserted, the ring may be withdrawn by simply withdrawing the rod. The three catches, being equal distances apart, serve to hold the ring straight and prevent binding in the withdrawing operation.

Of course more than three spring-catches may be employed, if, it is so desired.

Having thus fully described my invention, what I claim, and desire to secure by Letters 1. An extracting-tool consisting of a tubular rod screw-threaded externally at its lower end, a vertically-adjust; ble collar tapped on this rod, and three or' more spring-catches inserted in the s'aid tubular rod and provided with beveled projecting noses, substantially as described.

2. The combination of a tubular rod D,

provided with vertical slots at its loWer end, a vertically-adjustable collar tapped upon the lower end of this rod, a removable block G, secured in the tube D, and the spriug- JUSTIN Il. HILL. catches F, secured to the block G and provided with beveled noses which proj eet out through the notches in the lower end of the said tube D, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

Vtnesses:

RICE H. BELL, WILLIAM HAGER.

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