GB1188097A - Improvements in Pilot Bits for Earth Boring Augers - Google Patents

Improvements in Pilot Bits for Earth Boring Augers

Info

Publication number
GB1188097A
GB1188097A GB44155/68A GB4415568A GB1188097A GB 1188097 A GB1188097 A GB 1188097A GB 44155/68 A GB44155/68 A GB 44155/68A GB 4415568 A GB4415568 A GB 4415568A GB 1188097 A GB1188097 A GB 1188097A
Authority
GB
United Kingdom
Prior art keywords
bit
auger
earth boring
pilot bits
sept
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
GB44155/68A
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.)
WATSON Manufacturing CO
Original Assignee
WATSON Manufacturing CO
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 WATSON Manufacturing CO filed Critical WATSON Manufacturing CO
Publication of GB1188097A publication Critical patent/GB1188097A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/44Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

1,188,097. Boring earth &c. WATSON MFG. CO. 17 Sept., 1968 [19 Sept., 1967], No. 44155/68. Heading E1F. In a pilot bit for a ground auger comprising a substantially conical body 13, having helical blades 15, 17, the blades extend beyond the apex of the body to be joined by a blade portion A. The base of the bit has a depression (shown dotted in Fig. 6) which is engaged by a projection on the auger, the bit being fixed to the auger by a bolt passing through holes 51 in the bit to engage an elongated hole in the projection.
GB44155/68A 1967-09-19 1968-09-17 Improvements in Pilot Bits for Earth Boring Augers Expired GB1188097A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66891567A 1967-09-19 1967-09-19

Publications (1)

Publication Number Publication Date
GB1188097A true GB1188097A (en) 1970-04-15

Family

ID=24684273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44155/68A Expired GB1188097A (en) 1967-09-19 1968-09-17 Improvements in Pilot Bits for Earth Boring Augers

Country Status (2)

Country Link
US (1) US3557887A (en)
GB (1) GB1188097A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1004537C2 (en) * 1996-11-14 1998-05-18 Albert Hendrik Wissels Drill point for augers.
DE10057877C2 (en) * 2000-11-22 2002-10-17 Lueken Gisela wellhead
WO2010025500A1 (en) * 2008-09-04 2010-03-11 Taca Metro Pty Lted Pilot bit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016117A (en) * 1962-01-09 petersen
US51051A (en) * 1865-11-21 Improved reservoir-drill for tube-wells
US757124A (en) * 1903-06-19 1904-04-12 Frederick Kampfe Driven-well point.
US1612062A (en) * 1925-02-06 1926-12-28 Augustus B Scott Lock-dart bailer bottom
US1848192A (en) * 1927-01-29 1932-03-08 William J Newman Drilling apparatus
US2289707A (en) * 1941-01-31 1942-07-14 Leo B Hellman Drilling bit
US2639122A (en) * 1949-11-01 1953-05-19 Gerald A Petersen Pilot bit for earth augers
US2773673A (en) * 1954-03-04 1956-12-11 Petersen Gerald Alger Monroe Pilot bit
US2870995A (en) * 1954-11-15 1959-01-27 Gerald A M Petersen Drive lug for pilot bit and earth boring augers
US2877987A (en) * 1956-11-13 1959-03-17 Gerald A M Petersen Conversion head

Also Published As

Publication number Publication date
US3557887A (en) 1971-01-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees