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GB890807A - Improvements in and relating to grinding machines - Google Patents

Improvements in and relating to grinding machines

Info

Publication number
GB890807A
GB890807A GB2642/59A GB264259A GB890807A GB 890807 A GB890807 A GB 890807A GB 2642/59 A GB2642/59 A GB 2642/59A GB 264259 A GB264259 A GB 264259A GB 890807 A GB890807 A GB 890807A
Authority
GB
United Kingdom
Prior art keywords
relating
grinding machines
drill
jan
machine
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
GB2642/59A
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.)
Cawi GmbH and Co
Original Assignee
Cawi GmbH and 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 Cawi GmbH and Co filed Critical Cawi GmbH and Co
Publication of GB890807A publication Critical patent/GB890807A/en
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
    • B24B3/02—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters
    • B24B3/022—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters relief grinding of milling cutters
    • 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
    • B24B3/242—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of step drills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

890,807. Drills. CAWI & CO. G.m.b.H. Jan. 23, 1959 [Jan. 24, 1958], No. 2642/59. Class 83 (3). [Also in Group XXIII] The cutting edges of a drill are ground as shown in Fig. 8 in a machine which grinds both end cutting faces V and T. Fig. 6 shows the arrangement of the machine on a base B which supports a fixed grinding-wheel G and an adjustable table F which may be swung about a pivot D for grinding the end or side faces of the drill as shown in Fig. 7. Specification 675,141 is referred to.
GB2642/59A 1958-01-24 1959-01-23 Improvements in and relating to grinding machines Expired GB890807A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC16173A DE1107114B (en) 1958-01-24 1958-01-24 Machine for grinding the cutting edges of a drill, countersink, step drill or the like.

Publications (1)

Publication Number Publication Date
GB890807A true GB890807A (en) 1962-03-07

Family

ID=7015990

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2642/59A Expired GB890807A (en) 1958-01-24 1959-01-23 Improvements in and relating to grinding machines

Country Status (5)

Country Link
US (1) US3158969A (en)
CH (1) CH372225A (en)
DE (1) DE1107114B (en)
FR (1) FR1224876A (en)
GB (1) GB890807A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5153596U (en) * 1974-10-22 1976-04-23
GB2193913A (en) * 1986-08-18 1988-02-24 Black & Decker Inc Self-centering drill bit with pilot tip
US5288183A (en) * 1986-08-18 1994-02-22 Black & Decker Inc. Self-centering drill bit with pilot tip

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711997A (en) * 1971-07-06 1973-01-23 A Kushigian Automatic drill pointing machine with automatic drill locater system
US3911629A (en) * 1972-06-05 1975-10-14 John C Steinmetz Method for sharpening drills and other cutting tools

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US641107A (en) * 1899-10-07 1900-01-09 Buckeye Iron And Brass Works Machine for grinding drills.
US1656388A (en) * 1925-03-09 1928-01-17 Nielsen Holger Grinding machine
FR653775A (en) * 1927-04-30 1929-03-27 Ericsson Telefon Ab L M Improvements to telephone systems including automatic telephone extensions of different systems
DE517145C (en) * 1928-09-02 1931-01-31 Herbert William Hunt Grinding and sharpening machine for cutting twist drills
US2386687A (en) * 1942-06-12 1945-10-09 Jearum Frederick Charles Grinding machine
US2513694A (en) * 1943-11-22 1950-07-04 Genevoise Instr Physique Thread grinding machine
US2682736A (en) * 1949-05-04 1954-07-06 Johannes Cawi Drill sharpening machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5153596U (en) * 1974-10-22 1976-04-23
GB2193913A (en) * 1986-08-18 1988-02-24 Black & Decker Inc Self-centering drill bit with pilot tip
GB2193913B (en) * 1986-08-18 1990-05-16 Black & Decker Inc Self-centering drill bit with pilot tip
US4968193A (en) * 1986-08-18 1990-11-06 Black & Decker Corporation Self-centering drill bit with pilot tip
US5288183A (en) * 1986-08-18 1994-02-22 Black & Decker Inc. Self-centering drill bit with pilot tip

Also Published As

Publication number Publication date
FR1224876A (en) 1960-06-28
US3158969A (en) 1964-12-01
DE1107114B (en) 1961-05-18
CH372225A (en) 1963-09-30

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