GB698664A - Rotary tools for widening holes in metal parts - Google Patents

Rotary tools for widening holes in metal parts

Info

Publication number
GB698664A
GB698664A GB1841052A GB1841052A GB698664A GB 698664 A GB698664 A GB 698664A GB 1841052 A GB1841052 A GB 1841052A GB 1841052 A GB1841052 A GB 1841052A GB 698664 A GB698664 A GB 698664A
Authority
GB
United Kingdom
Prior art keywords
hub
shank
segments
cutting
metal parts
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
GB1841052A
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.)
Individual
Original Assignee
Individual
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
Priority to CH306119D priority Critical patent/CH306119A/en
Application filed by Individual filed Critical Individual
Priority to GB1841052A priority patent/GB698664A/en
Publication of GB698664A publication Critical patent/GB698664A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

698,664. Drills. MILANACCIO, G. July 21, 1952, No. 18410/52. Class 83 (iii). A pin drill comprises a hub 1 having three helical cutting segments 2, a pilot sleeve 7 and a nut 9 which screws on the end of an extension 6 of a taper-shank 5 and clamps balls 13 (not shown), between hemi-spherical recesses 12 in the end of the hub and corresponding recesses in the shoulder 16 of the shank, so as to transmit the drive from the shank to the hub. The cutting-edges 3 have chip-breaking grooves 4 staggered radially in the three segments, and longitudinal grooves 8 in the pilot sleeve remove the chips. A projection 10 on the sleeve 7 engages a step on the hub to connect the two parts rigidly together. The hub and the segments 2 may be made wholly of hard metal or, alternatively, hard-metal insets may form the cutting edges.
GB1841052A 1952-07-21 1952-07-21 Rotary tools for widening holes in metal parts Expired GB698664A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH306119D CH306119A (en) 1952-07-21 1952-07-03 Rotary tool for enlarging holes in metal pieces.
GB1841052A GB698664A (en) 1952-07-21 1952-07-21 Rotary tools for widening holes in metal parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1841052A GB698664A (en) 1952-07-21 1952-07-21 Rotary tools for widening holes in metal parts

Publications (1)

Publication Number Publication Date
GB698664A true GB698664A (en) 1953-10-21

Family

ID=10111981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1841052A Expired GB698664A (en) 1952-07-21 1952-07-21 Rotary tools for widening holes in metal parts

Country Status (2)

Country Link
CH (1) CH306119A (en)
GB (1) GB698664A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5486072A (en) * 1992-08-06 1996-01-23 British Aerospace Plc Cutting tools of composite construction
GB2363348A (en) * 2000-05-27 2001-12-19 Universal Drilling And Cutting Rotary cutter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5486072A (en) * 1992-08-06 1996-01-23 British Aerospace Plc Cutting tools of composite construction
GB2363348A (en) * 2000-05-27 2001-12-19 Universal Drilling And Cutting Rotary cutter

Also Published As

Publication number Publication date
CH306119A (en) 1955-03-31

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