GB1048087A - Improvements in and relating to borer bits - Google Patents

Improvements in and relating to borer bits

Info

Publication number
GB1048087A
GB1048087A GB4071763A GB4071763A GB1048087A GB 1048087 A GB1048087 A GB 1048087A GB 4071763 A GB4071763 A GB 4071763A GB 4071763 A GB4071763 A GB 4071763A GB 1048087 A GB1048087 A GB 1048087A
Authority
GB
United Kingdom
Prior art keywords
inserts
tool
cutting
relating
plate
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
GB4071763A
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.)
ARTUR FISCHER
Original Assignee
ARTUR FISCHER
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 ARTUR FISCHER filed Critical ARTUR FISCHER
Publication of GB1048087A publication Critical patent/GB1048087A/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
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids

Abstract

1,048,087. Boring tools; making drills and milling cutters. A. FISCHER. Oct. 15, 1963 [Nov. 3, 1962; Feb. 16, 1963], No. 40717/63. Headings B3A and B3C. [Also in Division B4] A rotary or percussive boring tool is produced by stamping a plate 1, Fig. 1 (not shown), to form recesses 3-6 for cutting inserts 8, Figs. 2, 3 (not shown), the latter being brazed into the recesses after the plate has been rolled, to form a cylinder with a swarf removing longitudinal slot 7. Inserts 8 are preferably effective in both directions of cutting, and may have internal cutting edges, and the tool may have inserts at both ends. In a modification, Fig. 4 (not shown), portion 11a of the tool is upset to produce a thickness which is greater than portion 11.
GB4071763A 1962-11-03 1963-10-15 Improvements in and relating to borer bits Expired GB1048087A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF0038219 1962-11-03
DEF0039041 1963-02-16

Publications (1)

Publication Number Publication Date
GB1048087A true GB1048087A (en) 1966-11-09

Family

ID=25975515

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4071763A Expired GB1048087A (en) 1962-11-03 1963-10-15 Improvements in and relating to borer bits

Country Status (3)

Country Link
AT (1) AT242579B (en)
CH (1) CH414438A (en)
GB (1) GB1048087A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2412679A1 (en) * 1977-10-25 1979-07-20 Ingersoll Rand Co HIGH FREQUENCY PERCUSSION DRILLING SYSTEM AND METHOD
FR2416103A1 (en) * 1978-02-07 1979-08-31 Nielsen Mogens METHOD AND TOOL FOR MAKING A HOLE IN REINFORCED CONCRETE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436915A1 (en) 1994-10-15 1996-04-18 Hilti Ag Hollow core bit with a hollow cylindrical carrier body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2412679A1 (en) * 1977-10-25 1979-07-20 Ingersoll Rand Co HIGH FREQUENCY PERCUSSION DRILLING SYSTEM AND METHOD
FR2416103A1 (en) * 1978-02-07 1979-08-31 Nielsen Mogens METHOD AND TOOL FOR MAKING A HOLE IN REINFORCED CONCRETE

Also Published As

Publication number Publication date
AT242579B (en) 1965-09-27
CH414438A (en) 1966-05-31

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