Well-Drilling Mechanism. Page: 17 of 17
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1,188,001
character described; a well sinking tube an
over-head suspension therefor, a rotary drill
carried on the tube and including a bit in
advance of the lower end of the tube, a
5 rotary shaft within the tube, a fluid op-
erated motor located in the tube, means
for leading the fluid energy therefrom to
the motor, the drill having air ducts in
connection with the source of fluid energy,
10 means on the tube that directs the exhaust
from the motor through the top of the tube,
the said ducts in-the drill head being ex-
tended upwardly at an angle of approxi-
mately ninety degrees.
15 14. A supporting cable, a drilling mecha-
nism suspended thereby, and adapted to
gravitate to the work, the said drilling mech-
anism including a sinking tube composed of
a plurality of sections, a rotary drill-shaft
20 within the tube formed of sections, one shaft
section for each tube section, a drill head on
the lower end of the shaft located in ad-
vance of the lower end of the sinking tube,
an air reservoir located ,between the drill
25 head and the'lower end of the tube,, an air
reservoir in the upper end of the tube, an
air motor for each tube section, power trans-
mission connecting each motor with its re-
spective shaft section, means for conveying
30 operating air from the surfaces to the two.
aforesaid air reservoirs, the drill head hav-
ing. passages for ejecting the air for exhaust-
ing drillings from the well bore, and means
connecting the motors with the air reservoir
35' in the tube, and other means for connecting
the air passages in the drill head with the
air reservoir below the tube.
15. A supporting cable, a drilling mecha-
nism suspended thereby, said drilling mech-
4o anism including a sinking tube having an
air reservoir, an air reservoir pendent from
the lower end of the said tube, a rotary shaft
located in the tube and projected through
the lower air reservoir, a drill head secured
45 on the lower end of the shaft, said head
having air passages that open into the bore
made by the drill, air ducts in that portion
of the shaft that passes through the, lower
reservoir, and which communicate with the
50 air ducts in the drill head, an air motor and
power mechanism that connects the motor
and the rotary drill shaft, means for con-
veying operating air from the surface to theair reservoir in the tube and to the air res-
ervoir at the lower end of the tube, and air 55
leads from the air reservoir in the tube to
the motor, and means for conveying the ex-
haust from the air motors up through the
sinking tube.
16. A supporting cable, a drilling mecha- 60
nism suspended thereby, said drilling mech-
anism including a sinking tube having an
air reservoir,. an air reservoir pendent from
the lower end of the said tube, a rotary shaft
located in the tube and projected through 65
the lower air reservoir, a drill head secured
on the lower end of the shaft, said head hav-
ing air passages that open into the bore
made by the drill, air ducts in that portion
of the shaft that passes through the lower 70
reservoir, and which communicate with the
air ducts in the drill head, an air motor and
power mechanism that connects the motor
and the rotary drill shaft, means for con-
veying operating air from the surface to the 75
air reservoir in the tube and to the air reser-
voir at the lower end of the tube, and air
leads from .the air reservoir in the tube to
the motor, means for conveying the exhaust
from the air motors up through the .sinking 80
tube, and further means for exhausting the
operating air from the drilling mechanism
and for-directing the said operating air into
the well bore above the drilling mechanism
as the said drilling mechanism is being lift- 85
ed out of the well for cleansing the said
well bore.
17. A supporting cable, a drilling mecha-
nism suspended, thereby and adapted to
gravitate to the work, said drilling mecha- 90
nism including a sinking tube having an air
reservoir, an air motor on the tube for driv-
ing the drill, an exhausting duct in connec-
tion with the reservoir, an air inlet duct to
the motor and a supplemental air inlet duct 95
in- communication with the aforesaid ex-
hausting duct; a back check valve in the said
duct, the said exhausting duct including an
air inlet and an air outlet, a spring closed
valve in the said outlet, and a three-way 100
valve connection that joins the source of op-
erating air to the supplemental air inlet that
is connected with the exhausting duct from
the motor.
THOMAS MAY.a
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May, Thomas. Well-Drilling Mechanism., patent, June 20, 1916; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth859007/m1/17/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.