GB1274650A - Improvements in or relating to thumb drills and holders thereof - Google Patents

Improvements in or relating to thumb drills and holders thereof

Info

Publication number
GB1274650A
GB1274650A GB5350168A GB5350168A GB1274650A GB 1274650 A GB1274650 A GB 1274650A GB 5350168 A GB5350168 A GB 5350168A GB 5350168 A GB5350168 A GB 5350168A GB 1274650 A GB1274650 A GB 1274650A
Authority
GB
United Kingdom
Prior art keywords
thumb
drills
holders
relating
drill
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
GB5350168A
Inventor
John Rae Finnigan
William Hawkins
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.)
North Western Gas Board
North Eastern Gas Board
Original Assignee
North Western Gas Board
North Eastern Gas Board
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 North Western Gas Board, North Eastern Gas Board filed Critical North Western Gas Board
Priority to GB5350168A priority Critical patent/GB1274650A/en
Publication of GB1274650A publication Critical patent/GB1274650A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/005—Cylindrical shanks of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0204—Connection of shanks to working elements of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0216—Overall cross sectional shape of the shank
    • B23B2231/0232—Hexagonal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/02—Connections between shanks and removable cutting heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

1,274,650. Drill. NORTH EASTERN GAS BOARD. 22 Aug., 1969 [12 Nov., 1968], No. 53501/68. Heading B3C. A drill capable of being rotated by the forefinger and thumb comprises a hexagonal holder 10 with a stepped bore 16, 14, and a drill 18 having flats 24, which is secured in the holder by grub screws 20.
GB5350168A 1968-11-12 1968-11-12 Improvements in or relating to thumb drills and holders thereof Expired GB1274650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5350168A GB1274650A (en) 1968-11-12 1968-11-12 Improvements in or relating to thumb drills and holders thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5350168A GB1274650A (en) 1968-11-12 1968-11-12 Improvements in or relating to thumb drills and holders thereof

Publications (1)

Publication Number Publication Date
GB1274650A true GB1274650A (en) 1972-05-17

Family

ID=10468035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5350168A Expired GB1274650A (en) 1968-11-12 1968-11-12 Improvements in or relating to thumb drills and holders thereof

Country Status (1)

Country Link
GB (1) GB1274650A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160221087A1 (en) * 2013-09-13 2016-08-04 Iml - Instrumenta Mechanik Labor Gmbh Drill Chuck, Drilling Needle and Drilling Needle-Drill Chuck Assembly
US20230182212A1 (en) * 2021-12-14 2023-06-15 Iscar, Ltd. Insert holder having weight-reducing voids and cutting tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160221087A1 (en) * 2013-09-13 2016-08-04 Iml - Instrumenta Mechanik Labor Gmbh Drill Chuck, Drilling Needle and Drilling Needle-Drill Chuck Assembly
US9937563B2 (en) * 2013-09-13 2018-04-10 IML—Instrumenta Mechanik Labor GmbH Drill chuck, drilling needle and drilling needle-drill chuck assembly
US20230182212A1 (en) * 2021-12-14 2023-06-15 Iscar, Ltd. Insert holder having weight-reducing voids and cutting tool

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Legal Events

Date Code Title Description
PS Patent sealed