Well-Drilling Apparatus. Page: 4 of 5
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901,182
yoncl the periphery of the drum to engage
the block 17 on the rim of the pulley 16.
The coiled spring 34 normally advances said
bar, and it backs against a roller 35 in the
5 drum adjacent said groove to permit of its
easy operation. The bar has a laterally ex-
tending arm 36 which projects through a
slot 37 in the side of the drum opposite the
groove, and this arm has on its projecting
10 or exposed end a roller 38 adapted to engage
under a cain 39 fastened to the side of the
middle sill Ga of the frame; and when it en-
gages the cam the bar is retracted, disengag-
ing its outer end from the block 17 and I
15 allowing the pulley 16 to slip and turn back,
permitting the drop of the drill rod. A
spring 40, fixed to the sill 6" receives the
stroke of a projection 41 on the rim of the
pulley 16 and stops its backward movement
20 without jar or great shock.
The pulley 16 may be shifted by the lever
42, to cause the clutch to miss and thus stop
the drill without stopping the drive shaft
11. This shaft also carries a spur gear 43
25 meshing with a pinion 44 whose shaft 45
carries a fly wheel 46, and a band brake 47
extends partly around the fly wheel and may
be operated by a lever 46 connected to one
end thereof, for an obvious purpose.
30 The bailer or slush bucket 47' is attached
to a rope 48 which extends over a pulley 49
on the tower and is wound around a drum
50 journaled on the frame at the foot of the
tower. The shaft of the drum has a pulley
35 51 connected by belt 52 to the pulley 53 on
shaft 11. Ordinarily the belt is loose, but it
may be tightened to start the drum by an
idler 54 carried at the end of a lever 55.
The feed drum or spool 22 of the drill.
40 rope is operated by means of a shaft 56 at
the side of the frame, having a hand wheel
57 at its front end and a worm 58 at its rear
end meshing with a gear 59 on shaft 60
which has a pinion 61 meshing with spur
45 gear 62 on the drum shaft. A pawl 63 en-
gages a ratchet 64 on shaft 60 and prevents
back slip.
The operating levers and devices are all
conveniently located at the front of the rig
50 and can be operated by one man if necessary.
The clutch devices for operating the drill
rope are automatic in operation and give a.
powerful leverage requiring small motive
power for the operation of the apparatus.
55 I claim-
1. In a drilling apparatus, the combina-
tion with the drill rope, of a shaft and means
to drive the same, a pulley loose on the shaft,
a strap connected at one end thereto a swing-
60 ing pulley at the other end of the strap ar-
ranged to engage the rope and take up the
same, a clutch device on the shaft engage-able with the loose pulley to take up the
rope, and means to release the clutch, the
loose pulley being free to turn back after 05
the clutch is released.
2. In a drilling apparatus, the combina-
tion with the drill rope, of a shaft and means
to drive the same, a. pulley loose on the shaft.
a strap connected thereto, a. swinging pulley 70
connected to the strap and under which the
rope passes to pull the rope when the first
named pulley is revolved, the loose pulley
having a projection, a clutch fast on the
shaft beside the crank and having a. muov- 75
able member arranged to strike the projec-
tion when advanced and turn the first named
pulley and take up the rope, and means to
advance and retract said member, the first
named pulley being free to turn back and 80
slack the rope after release of the clutch.
3. In a well drilling apparatus, the combi-
nation of a. frame, a rope drum ait the rear
end thereof and guide pulley at the front
end thereof, with a drill rope extending be- 85
tween the same, a shaft located on the frame
between said drum and pulley and having
driving means, a pulley loose on the shaft,
a. strap connected therewith, a swinging pil-
ley connected with the same and engaged 90
with the rope, and a clutch device on the
shaft, automatically engageable and disen-
gageable with the loose pulley to alternately
take up and let off the rope.
4. In a well drilling apparatus, the coin- 95
bination of a frame, a rope drun at the rear
end thereof, a guide pulley at the front end
thereof, a drill rope extending between the
same, a vertically swinging an hinged to
the frame and h'avin g a pulley at the free 100
end thereof resting upon the rope, and means
to intermittently pull down the pulley and
arm to alternately take up and let oft the
rope said means comprising a strap con-
nected with the pulley, a shahl, a pulley 105
loose on the shaft and connected with the
strap, and means for connecting and discol-
necting said pulley and the shaft.
5. In a well drilling apparatus, a take up
mechanism for the rope comprising in com- 110
bination a shaft, a pulley loose thereon and
having an inward projection on the rim, a
clutch drum fast on the shaft, a yielding
bar carried by the drum and slidable radi-
ally therein and normally projecting at its 115
outer end beyond the periphery of the drlmin
in position to engage the projection ald turn
the pulley, a stationary can located beside
the drum and engageable with the bar to re-
tract the same, and connections between the 120
pulley and drill rope to take up the latter.
6. In a. well drilling apparatus, a take up
mechanism for the rope, comprising in coim-
1bination a. shaft, a shiftable pulley loose
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Moon, Richard Davis. Well-Drilling Apparatus., patent, October 13, 1908; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth511399/m1/4/?rotate=0: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.