FR2172735A5 - - Google Patents

Info

Publication number
FR2172735A5
FR2172735A5 FR7305605A FR7305605A FR2172735A5 FR 2172735 A5 FR2172735 A5 FR 2172735A5 FR 7305605 A FR7305605 A FR 7305605A FR 7305605 A FR7305605 A FR 7305605A FR 2172735 A5 FR2172735 A5 FR 2172735A5
Authority
FR
France
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
FR7305605A
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.)
Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG
Original Assignee
Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG
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 Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG filed Critical Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG
Application granted granted Critical
Publication of FR2172735A5 publication Critical patent/FR2172735A5/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • B24B3/26—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of twist drills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
FR7305605A 1972-02-17 1973-02-16 Expired FR2172735A5 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7205920 1972-02-17
DE7301349 1973-01-15

Publications (1)

Publication Number Publication Date
FR2172735A5 true FR2172735A5 (fr) 1973-09-28

Family

ID=25946936

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7305605A Expired FR2172735A5 (fr) 1972-02-17 1973-02-16

Country Status (6)

Country Link
US (1) US3828480A (fr)
JP (1) JPS4894094A (fr)
CH (1) CH573285A5 (fr)
FR (1) FR2172735A5 (fr)
GB (1) GB1425368A (fr)
IT (1) IT979147B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182954A1 (fr) * 1984-11-29 1986-06-04 Fiorenzo Trebbi Dispositif pour affûter des pointes de forets, alésoirs et pièces de filetage
US4787176A (en) * 1986-01-24 1988-11-29 The Boeing Company Drill bit sharpening apparatus
US4821463A (en) * 1986-01-24 1989-04-18 The Boeing Company Drill bit sharpening apparatus
US4782633A (en) * 1986-01-24 1988-11-08 The Boeing Company Drill bit sharpening method
US20060128272A1 (en) * 1998-05-21 2006-06-15 Tycom Corporation Automated drill bit re-sharpening and verification system
US6283824B1 (en) * 1998-05-21 2001-09-04 Tycom Corporation Automated drill bit re-sharpening and verification system
TW538849U (en) * 2002-05-21 2003-06-21 Jen-Fu Lin Grinding device for drill bit
CN102941513B (zh) * 2012-11-20 2015-03-18 丹阳市盛力机械有限公司 麻花钻开口和双后角组合磨床
CN108705385A (zh) * 2018-08-04 2018-10-26 陕西理工大学 麻花钻刃磨装置
CN110978352B (zh) * 2019-12-26 2021-12-28 青岛国工建筑装饰有限公司 一种建筑装饰用锁管塑料件的修整转送设备及其工作方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US288069A (en) * 1883-11-06 Emery-wheel for grinding twist-drills and other tools
US2017532A (en) * 1933-10-11 1935-10-15 Nicholas J Elter Drill sharpening mechanism
US2474357A (en) * 1947-07-11 1949-06-28 Elizabeth E Haynes Drill grinder
US2618909A (en) * 1950-01-10 1952-11-25 Norton Co Grinding machine
US2827741A (en) * 1953-09-29 1958-03-25 Robert K Thomas Drill grinding machine
US2911771A (en) * 1956-09-28 1959-11-10 Christen & Co A G Apparatus for sharpening drills by means of a grinding wheel
US2897635A (en) * 1956-11-16 1959-08-04 Stephanoff Alexander Drill pointing machine
US2907149A (en) * 1957-02-26 1959-10-06 Lowell E Whitesel Drill grinder device

Also Published As

Publication number Publication date
GB1425368A (en) 1976-02-18
CH573285A5 (fr) 1976-03-15
JPS4894094A (fr) 1973-12-04
IT979147B (it) 1974-09-30
US3828480A (en) 1974-08-13

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Legal Events

Date Code Title Description
ST Notification of lapse