Well Drill. Page: 2 of 3
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UNITED STATES PATENT OFFICE.
WILLIAM ROBERT WELKE, OF OAK CLIFF, ASSIGNOR OF ONE-HALF TO
W. J. AND C. L. BETTERTON, OF DALLAS, TEXAS.
WELL-DRILL.
SPECIFICATION forming part of Letters Patent No. 443,688, dated December 30, 1890.
Application filed May 20, 1890. Serial No, 352,556, (No model,)
To all whom, it 7tay concern: cylinder A, and is provided with a central 50
Be it known that I, WILLIAMI ROBERT tapering opening (, through which passes the
W-ELKE, a citizen of the United States, resid- operating-rod d'.
ing at Oak Cliff, in the county of Dallas and The letter E designates a hollow weight lo-
5 State of Texas, have invented certain new and cated within the cylinder A and provided at
useful Improvements in Well-Drills; and i do its upper edge with an opening e, the wall of 55
hereby declare the following to be a full, clear, which is beveled downward and inward, as
and exact description of the invention, such as shown. Upon opposite sides of the operat-
will enable others skilled in the art to which ing-rod d' and near the lower end thereof are
o0 it appertains to make and use the same. secured in any desired manner spring-catches
My invention has relation to drills for bor- e', designed when the rod is lowered to enter 60
ing and sinking Artesian and other wells; and the opening e and engage with the shoulder
it consists in the combination and novel ar- e" within the weight E, whereby said weight
rangement of parts, as hereinafter more fully may be raised. The head D upon its lower
15 described, illustrated in the accompanying face is cut away, as at f, to allow of the up-
drawings, and pointed out in the appended per end of the weight, when in a raised posi- 65
claims. tion, to enter and allow of the spring-catches
The object of my invention is, first, to pro- to enter the tapering opening d in the head
vide a simple and inexpensive drill for bor- D and trip the weight.
20 ing Artesian and other wells, whereby a weight To prevent small particles of stones, gravel,
located within a cylinder on the drill is made or sand entering the cylinder and prevent the 70
to force the cutters through rock, sand, and weight from working freely therein, I form a
gravel met with in digging wells, and, second, stuffing-box F on the head D, and to allow
to provide the drill with a set of interchange- water and air that may be in the cylinder to
25 able cutters suited for the different strata escape and not interfere with the weight when
met with in sinking a well. descending upon the head B openings g are 75
In the drawings, Figure 1 is a vertical sec- formed in the lower end of said cylinder.
tion of a drill embodying my improvement. When strata of sand or gravel are struck in
Fig. 2 is a similar view showing the cutters sinking a well, the cylinder C is removed and
30 used for drilling through rock attached to the the cylinder H placed upon the head B. This
drill. Fig. 3 is a modified form of cylinder; cylinder, as will be noticed, is closed at its 80
Fig. 4, a cross-section on the line xx of Fig. 2. lower end by a head h, provided with a series
Referring to the accompanying drawings, of openings h', closed by hinged valves h".
in which like letters of reference indicate cor- When the cylinder is full of sand or gravel,
35 responding parts in all the figures, the letter which can be readily judged from the weight
A designates a metallic cylinder closed at its of the drill, it is raised and emptied of its con- 85
lower end by a head B, provided with a de- tents. When strata of rock are met with, the
pendent annular flange b, at the upper edge cylinders C or H are removed and cylinder I
of which and upon the outer face is formed secured to the head B, which is closed at its
40 a shoulder b', against which is designed to lower end by a head i, carrying on its circum-
abut a cylinder C, provided with lower cut- ference a series of dovetailed and screw-fast- 90
ting-edge c, and to prevent the binding of ened chisels or cutters i". The method of se-
said cylinder within the well it is given a curing these cutters to the valved head is clear-
slight outward curve, as shown, and to readily ly shown in Fig. 4. The headiis also provided
45 secure said cylinder to the head B a bolt c' is with a series of valved openings i"', and to
passed through suitable registering openings readily remove the contents of the cylinder 95
in the cylinder and head. when brought to the surface I form therein
The letter D designates a head secured in a hand-hole i', closed bya plate i5. To read-
any desired manner to the upper end of the ily permit of the escape of air or water from
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Welke, William Robert. Well Drill., patent, December 30, 1890; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth172559/m1/2/?q=%22%22~1: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.