GB593622A - Improvements in or relating to drill bits, cutting tools and the like - Google Patents

Improvements in or relating to drill bits, cutting tools and the like

Info

Publication number
GB593622A
GB593622A GB2190544A GB2190544A GB593622A GB 593622 A GB593622 A GB 593622A GB 2190544 A GB2190544 A GB 2190544A GB 2190544 A GB2190544 A GB 2190544A GB 593622 A GB593622 A GB 593622A
Authority
GB
United Kingdom
Prior art keywords
edges
relating
cutting tools
drill bits
tips
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
GB2190544A
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.)
Gullick Ltd
Original Assignee
Gullick Ltd
Filing date
Publication date
Application filed by Gullick Ltd filed Critical Gullick Ltd
Publication of GB593622A publication Critical patent/GB593622A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/06—Varying effective area of jet pipe or nozzle
    • F02K1/12—Varying effective area of jet pipe or nozzle by means of pivoted flaps
    • F02K1/1207—Varying effective area of jet pipe or nozzle by means of pivoted flaps of one series of flaps hinged at their upstream ends on a fixed structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/18—Cutting tools of which the bits or tips or cutting inserts are of special material with cutting bits or tips or cutting inserts rigidly mounted, e.g. by brazing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/06—Varying effective area of jet pipe or nozzle
    • F02K1/15—Control or regulation
    • F02K1/16—Control or regulation conjointly with another control
    • F02K1/165—Control or regulation conjointly with another control with air intake control

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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)
  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

593,622. Drills. GULLICK, Ltd., and SEAMAN, T. Nov. 8, 1944, No. 21905. [Class 83 (iii)] In a drill bit or like cutting tool having one or more radially disposed cutting elements 10, 11 the tips 16, of tungsten carbide, are recessed into the body 15 and secured by brazing or the tike. The cutting edges 17, 18 are of angular, inclined, or curved shape and the tips have base edges 19, 21 of similar shape to allow the edges to be sharpened to their limit without waste. The shank 12 can be secured to a drill rod by a transverse pin through a hole 14. Specification 592,086 is referred to in the Provisional Specification.
GB2190544A 1944-11-08 Improvements in or relating to drill bits, cutting tools and the like Expired GB593622A (en)

Publications (1)

Publication Number Publication Date
GB593622A true GB593622A (en) 1947-10-22

Family

ID=1736577

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2190544A Expired GB593622A (en) 1944-11-08 Improvements in or relating to drill bits, cutting tools and the like

Country Status (1)

Country Link
GB (1) GB593622A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2898786A (en) * 1955-12-14 1959-08-11 John R Willingham Blind hole drill
US3086410A (en) * 1961-01-23 1963-04-23 Zimmermann Lukas Trepanning tool
US5049010A (en) * 1988-08-04 1991-09-17 Unibit Corporation Metal cutting tool
US5217334A (en) * 1990-08-22 1993-06-08 Nitto Kohki Co., Ltd. Annular hole cutter
US7246975B2 (en) 2005-05-18 2007-07-24 Chris Corso Hole saw with replaceable cutting tip
CN101906937A (en) * 2010-05-25 2010-12-08 李仕清 Compound drill
CN101975062A (en) * 2010-10-10 2011-02-16 李仕清 Efficient cutter head
CN102086757A (en) * 2010-10-23 2011-06-08 李仕清 Composite cutting drill
CN109109177A (en) * 2018-10-26 2019-01-01 东莞市国钻五金科技有限公司 A kind of glass camera drilling tool

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2898786A (en) * 1955-12-14 1959-08-11 John R Willingham Blind hole drill
US3086410A (en) * 1961-01-23 1963-04-23 Zimmermann Lukas Trepanning tool
US5049010A (en) * 1988-08-04 1991-09-17 Unibit Corporation Metal cutting tool
US5217334A (en) * 1990-08-22 1993-06-08 Nitto Kohki Co., Ltd. Annular hole cutter
US7246975B2 (en) 2005-05-18 2007-07-24 Chris Corso Hole saw with replaceable cutting tip
CN101906937A (en) * 2010-05-25 2010-12-08 李仕清 Compound drill
CN101975062A (en) * 2010-10-10 2011-02-16 李仕清 Efficient cutter head
CN102086757A (en) * 2010-10-23 2011-06-08 李仕清 Composite cutting drill
CN109109177A (en) * 2018-10-26 2019-01-01 东莞市国钻五金科技有限公司 A kind of glass camera drilling tool

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