Drilling Apparatus Page: 7 of 9
[3], 6 p. : ill. ; 23 cm.View a full description of this patent.
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1,802,058
work. Oil is supplied to the pump 32' by
means of a pipe 31' in the same manner as
illustrated in Fig. 1.
What I claim is-
5 1. In comlbinatioll in apparatus for bor-
ing holes in the ground, a rotatable frame-
work, and a pl rality of rotatable conical
muela'ers carried by the framework with
their axes con.verging and also tilted later-
J0 ally in the same cirenuferential direction
with respect to the center line of the frame-
work, and provided with cutting means at
their surfaces, the angle of inclination of
the surfaces of the members to the vertical at
15 the sides thereof remote from the center line
of the framework being less than the angle
of inclination of such surfaces to the hori-
zontal.
2. In combination in apparatus for boring
20 holes, in the ground, a rotatable framework
and a phlrality of rotatable drums carried
by the framework, with their axes converg-
ing and with cutting means at their sur-
faces, the axes of the said (Irums being eccen-
25 trick with respect to the surfaces thereof.
3. In combination in apparatus for boring
holes in the ground, a rotatable framework,
and a plurality of rotatable conical drums
carried by the framework, with their axes
30 converging and with cutting means at their
surfaces, the axes of the said drums being
eccentric with respect to the surfaces thereof.
4. In combination in apparatus for boring
holes in the ground, a rotatable framework
35 and a plurality of rotatable drums carried
by the framework, with their axes converg-
ing and with cutting means at their surfaces,
the axes of the said drums being eccentric
with respect to the surfaces thereof. and be-
40 ing inclined laterally with respect to the
center line of the framework.
5. In combination in apparatus for bor-
ing holes in the ground, a rotatable frame-
work, and a plurality of rotatable conical
45 drums carried by the framework with their
axes converging and each comprising a ro-
tatable shaft, a plurality of flat disks keyed
to the shaft and provided with cutter slots,
and cutters clamped in the slots between the
50 disks.
6. In combination in apparatus for bor-
ing holes in the ground, a rotatable frame-
work and a plurality of rotatable drums
carried by the framework, having their axes
55 converging toward the axis of the frame-
work, the said drums comprising a plurality
of flat disks and flat spaced cutter bars
clamped between the disks, the faces of the
cutters on one drum being at substantially
-60 right angles to the faces of the cutters on
another drum.
7. In combination in apparatus for boring
holes in the ground, a rotatable framework
and a plurality of rotatable drums carried by
65 the framework, the said drums comprising aplurality of flat disks, a shaft extending
through the (lisks, spaced cutters clamped
hetweeni the disks, and interlocking means
between the faces of the disks and the cut-
ters, adapted to prevent endwise movement 70
of the cutters.
8. In combination in apparatus for boring
holes in the ground, a rotatable framework,
a plurality of inclined shafts carried by the
framework, (lirus with cutting surfaces 75
keyed to the shafts, and thrust bearings for
the upper ends of the shaft, such bearings
being formed to take the thrust of the
shaft in both directions.
9. In combination in apparatus for boring 80
holes in the ground, a. rotatable framework,
a idurality of inclined shafts carried by the
framework, drums with cutting surfaces
keyed to the shafts, bearings for the lower
ends of the shafts, and thrust bearings for 85
the upper end of the shafts, such thrust
bearings being adjustable laterally to vary
the inclination of the shafts.
10. In combination in apparatus for drill-
ing holes in the ground, a rotatable frame, a; 90
plurality of rotatable cutting drums carried
by the frame with their axes converging, and
shields carried by the frame and extending
around portions of the drums in proximity
thereto and adapted to prevent the wedg- 95
ing of material between. the frame and the
drums.
11. In combination in apparatus for
drilling holes in the ground, a rotatable
frame comprising a tubular member pro- 106
vided at its end with two branches which di-
verge and then converge at the lower end of
the machine and have an outlet at such
lower end for the passage of water, a plu-
rality of inclined rotatable cutting drums 105
opposite the said branches of the frame,
and a drilling member below the said drums.
12. In combination in apparatus for drill-
ing holes in the ground, a rotatable frame
comprising a tubular member provided at its 110
end with two branches which diverge and
then converge at the lower end of the ma-
chine and have an outlet at such lower end
for the passage of water, a web connecting
the two branches, and a plurality of inclined 115
rotatable cutting drums carried by the
frame.
13. In combination in. apparatus for drill-
ing holes in the ground, a rotatable frame, a
plurality of inclined rotary cutting drums 120
carried thereby, and guide means carried by
the frame intermediate the drums and adapt-
ed to engage the walls of the cavity being
bored.
14. In combination in apparatus for drill- 125
ing holes in the ground, a rotatable frame
and a drilling member carried by the frame
in advance of the drums and adapted to drill
a hole of less diameter than that cut by the
drums, the said drums being inclined 'so as 130
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Reference the current page of this Patent.
Layne, Mahlon E. Drilling Apparatus, patent, April 29, 1919; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1257344/m1/7/: accessed July 8, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.