ZA755015B - Removable stem for raise bits - Google Patents

Removable stem for raise bits

Info

Publication number
ZA755015B
ZA755015B ZA00755015A ZA755015A ZA755015B ZA 755015 B ZA755015 B ZA 755015B ZA 00755015 A ZA00755015 A ZA 00755015A ZA 755015 A ZA755015 A ZA 755015A ZA 755015 B ZA755015 B ZA 755015B
Authority
ZA
South Africa
Prior art keywords
removable stem
raise
bits
raise bits
stem
Prior art date
Application number
ZA00755015A
Inventor
N Dyer
H Mitchell
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Publication of ZA755015B publication Critical patent/ZA755015B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/09—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces
    • F16D1/093—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping
    • F16D1/094—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping using one or more pairs of elastic or segmented rings with mutually mating conical surfaces, one of the mating rings being contracted and the other being expanded
    • 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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7047—Radially interposed shim or bushing
    • Y10T403/7051—Wedging or camming
    • Y10T403/7052—Engaged by axial movement
    • Y10T403/7058—Split or slotted bushing

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
  • Dowels (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
ZA00755015A 1974-09-16 1975-08-04 Removable stem for raise bits ZA755015B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US506667A US3917009A (en) 1974-09-16 1974-09-16 Removable stem for raise bits

Publications (1)

Publication Number Publication Date
ZA755015B true ZA755015B (en) 1976-07-28

Family

ID=24015520

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00755015A ZA755015B (en) 1974-09-16 1975-08-04 Removable stem for raise bits

Country Status (8)

Country Link
US (1) US3917009A (en)
CA (1) CA1023340A (en)
FI (1) FI64836C (en)
FR (1) FR2284751A1 (en)
NO (1) NO143172C (en)
SE (1) SE414657B (en)
ZA (1) ZA755015B (en)
ZM (1) ZM12175A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007799A (en) * 1975-07-07 1977-02-15 Smith International, Inc. Raise drill with replaceable stem
US4049067A (en) * 1975-11-05 1977-09-20 Ingersoll-Rand Company Cutter mounting extension apparatus
US4011019A (en) * 1976-01-16 1977-03-08 Ingersoll-Rand Company Adjustable and disengagable earth raise borer stem
US3993147A (en) * 1976-01-19 1976-11-23 Dresser Industries, Inc. Taper lock removable stem for raise bit
US4069878A (en) * 1976-03-08 1978-01-24 Reed Tool Company Raise drilling bit with detachable stem
US4108259A (en) * 1977-05-23 1978-08-22 Smith International, Inc. Raise drill with removable stem
SE414955B (en) * 1977-09-09 1980-08-25 Sandvik Ab STIGORTS DRIVING CHRONICLE
US4186809A (en) * 1978-11-06 1980-02-05 Dresser Industries, Inc. Steep angle raise bit
US4359114A (en) * 1980-12-10 1982-11-16 Robbins Machine, Inc. Raise drill bit inboard cutter assembly
US4410053A (en) * 1980-12-15 1983-10-18 Masse Roger F Apparatus for drilling hard material
US4448270A (en) * 1982-05-10 1984-05-15 Hughes Tool Company Variable diameter earth boring bit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US827346A (en) * 1905-09-20 1906-07-31 Harry A Bubb Pulley.
US2570604A (en) * 1946-03-09 1951-10-09 Siegerist Walter Mounting for sheaves and the like
US2556151A (en) * 1946-05-01 1951-06-05 Morse Chain Co Quick detachable hub
US2819099A (en) * 1953-06-12 1958-01-07 Westinghouse Air Brake Co Flange union fitting with contractible lined wedge
US3231029A (en) * 1963-10-28 1966-01-25 Robbins & Assoc James S Articulated drilling shafts for raise drilling
FR1373624A (en) * 1963-11-09 1964-09-25 Keying and fixing device and accessory device
US3659659A (en) * 1970-02-04 1972-05-02 Dresser Ind Large diameter bit with a replaceable stem
US3675729A (en) * 1970-05-08 1972-07-11 Smith International Bit lubrication system
US3738691A (en) * 1971-09-22 1973-06-12 D Firth Split contractible bushing
US3805901A (en) * 1972-08-10 1974-04-23 Ingersoll Rand Co Earth cutter assembly

Also Published As

Publication number Publication date
NO752679L (en) 1976-03-17
FI64836B (en) 1983-09-30
US3917009A (en) 1975-11-04
CA1023340A (en) 1977-12-27
SE7510119L (en) 1976-03-17
FR2284751A1 (en) 1976-04-09
FI64836C (en) 1984-01-10
NO143172B (en) 1980-09-15
NO143172C (en) 1980-12-29
FI752393A (en) 1976-03-17
AU8401875A (en) 1977-02-17
SE414657B (en) 1980-08-11
ZM12175A1 (en) 1976-10-21

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