GB1282226A - Roller cutter drill bit - Google Patents

Roller cutter drill bit

Info

Publication number
GB1282226A
GB1282226A GB370570A GB370570A GB1282226A GB 1282226 A GB1282226 A GB 1282226A GB 370570 A GB370570 A GB 370570A GB 370570 A GB370570 A GB 370570A GB 1282226 A GB1282226 A GB 1282226A
Authority
GB
United Kingdom
Prior art keywords
shaft
legs
drill bit
roller cutter
cutter drill
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB370570A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GW Murphy Industries Inc
Original Assignee
GW Murphy Industries 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 GW Murphy Industries Inc filed Critical GW Murphy Industries Inc
Publication of GB1282226A publication Critical patent/GB1282226A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

1282226 Boring earth &c G W MURPHY INDUSTRIES Inc 26 Jan 1970 [28 March 1969] 3705/70 Heading E1F A drill head has roller cutters 40 each rotatable between legs 20, 22 on bearings 44, 46, 48, 50 carried by a hollow shaft 42 having an eccentric bore 76 and arranged so that the minimum shaft thickness is at the side of the shaft remote from the surface being cut. The shaft has shoulders 56, 58 engaging shoulders 36, 38 on the legs, and the bore is engaged by bushes 52, 54 held in the legs by a bolt 72. Lubricant is supplied to the bearings through fitting 88, duct 90 in the bolt, and a slot and grooves in a sleeve 82.
GB370570A 1969-03-28 1970-01-26 Roller cutter drill bit Expired GB1282226A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81134169A 1969-03-28 1969-03-28

Publications (1)

Publication Number Publication Date
GB1282226A true GB1282226A (en) 1972-07-19

Family

ID=25206289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB370570A Expired GB1282226A (en) 1969-03-28 1970-01-26 Roller cutter drill bit

Country Status (8)

Country Link
JP (1) JPS5017001B1 (en)
AU (1) AU1090970A (en)
CA (1) CA923114A (en)
CH (1) CH541712A (en)
DE (1) DE2007636A1 (en)
GB (1) GB1282226A (en)
IE (1) IE33960B1 (en)
SE (1) SE361189B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE506806C2 (en) * 1995-02-14 1998-02-16 Sandvik Ab Cutting roller for a drill head and method of loading lubricant into a cutting roller

Also Published As

Publication number Publication date
IE33960B1 (en) 1974-12-30
CH541712A (en) 1973-09-15
DE2007636A1 (en) 1970-10-08
AU1090970A (en) 1971-08-05
CA923114A (en) 1973-03-20
IE33960L (en) 1970-09-28
SE361189B (en) 1973-10-22
JPS5017001B1 (en) 1975-06-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees