ZA738030B - Excavating machine - Google Patents

Excavating machine

Info

Publication number
ZA738030B
ZA738030B ZA738030A ZA738030A ZA738030B ZA 738030 B ZA738030 B ZA 738030B ZA 738030 A ZA738030 A ZA 738030A ZA 738030 A ZA738030 A ZA 738030A ZA 738030 B ZA738030 B ZA 738030B
Authority
ZA
South Africa
Prior art keywords
excavating machine
excavating
machine
Prior art date
Application number
ZA738030A
Inventor
H Lupton
D Busby
Original Assignee
Subterranean Tools Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Subterranean Tools Inc filed Critical Subterranean Tools Inc
Publication of ZA738030B publication Critical patent/ZA738030B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
ZA738030A 1972-12-01 1973-10-16 Excavating machine ZA738030B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00311346A US3850253A (en) 1972-12-01 1972-12-01 Excavating machine

Publications (1)

Publication Number Publication Date
ZA738030B true ZA738030B (en) 1974-09-25

Family

ID=23206495

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA738030A ZA738030B (en) 1972-12-01 1973-10-16 Excavating machine

Country Status (5)

Country Link
US (1) US3850253A (en)
AU (1) AU474610B2 (en)
CA (1) CA980759A (en)
GB (1) GB1434569A (en)
ZA (1) ZA738030B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995701A (en) * 1975-04-07 1976-12-07 Hughes Tool Company Derrick tilting system
US4203266A (en) * 1977-12-15 1980-05-20 Dresser Industries, Inc. Mast leveling and support apparatus
US4315552A (en) * 1979-05-14 1982-02-16 Dresser Industries, Inc. Raise drill apparatus
US4757866A (en) * 1986-09-30 1988-07-19 Steve Szoke Hydraulic drill feed units
DE4113422C3 (en) * 1991-04-25 1998-06-10 Klemm Bohrtech Earth drilling rig
NO321983B1 (en) * 2005-04-11 2006-07-31 Aksel Fossbakken Drilling or service rig
DE502005007432D1 (en) * 2005-12-09 2009-07-16 Bauer Maschinen Gmbh Harrow
SE537573C2 (en) * 2013-10-17 2015-06-23 Atlas Copco Rock Drills Ab Stigort drilling machine with changeable length, procedure and stigort drilling rig

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460638A (en) * 1966-10-10 1969-08-12 Hughes Tool Co Raise drilling apparatus
US3490546A (en) * 1968-06-04 1970-01-20 Robbins & Assoc James S Drilling machine for use in small tunnels
US3568779A (en) * 1969-09-19 1971-03-09 Robert E Cannon Underground rotary drill
US3780816A (en) * 1972-03-14 1973-12-25 Dresser Ind Earth boring machine with tandem thrust cylinders

Also Published As

Publication number Publication date
AU474610B2 (en) 1976-07-29
DE2353106A1 (en) 1974-06-06
US3850253A (en) 1974-11-26
CA980759A (en) 1975-12-30
AU6164873A (en) 1975-04-24
GB1434569A (en) 1976-05-05
DE2353106B2 (en) 1977-03-24

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