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GB828048A - Method and apparatus for grinding the end of a drill - Google Patents

Method and apparatus for grinding the end of a drill

Info

Publication number
GB828048A
GB828048A GB20664/58A GB2066458A GB828048A GB 828048 A GB828048 A GB 828048A GB 20664/58 A GB20664/58 A GB 20664/58A GB 2066458 A GB2066458 A GB 2066458A GB 828048 A GB828048 A GB 828048A
Authority
GB
United Kingdom
Prior art keywords
drill
grinding
group xxiii
spiralconical
drills
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
GB20664/58A
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.)
Milacron Inc
Original Assignee
Cincinnati Milling Machine 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 Cincinnati Milling Machine Co filed Critical Cincinnati Milling Machine Co
Publication of GB828048A publication Critical patent/GB828048A/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
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills

Landscapes

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

Abstract

828,048. Drills. CINCINNATI MILLING MACHINE CO. June 27,1958 [Sept. 20, 1957], No. 20664/58. Class 83 (3). [Also in Group XXIII] A drill 29 produced by moving a grinding- wheel (see Group XXIII), in a spiralconical path relative to the face of the drill, has a tip 29a which acts, in use, as a pilot for the drill.
GB20664/58A 1957-09-20 1958-06-27 Method and apparatus for grinding the end of a drill Expired GB828048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US828048XA 1957-09-20 1957-09-20

Publications (1)

Publication Number Publication Date
GB828048A true GB828048A (en) 1960-02-10

Family

ID=22173572

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20664/58A Expired GB828048A (en) 1957-09-20 1958-06-27 Method and apparatus for grinding the end of a drill

Country Status (1)

Country Link
GB (1) GB828048A (en)

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