GB1186429A - Improvements in or relating to Taps for Cutting an Internal Screw Thread - Google Patents

Improvements in or relating to Taps for Cutting an Internal Screw Thread

Info

Publication number
GB1186429A
GB1186429A GB2742867A GB2742867A GB1186429A GB 1186429 A GB1186429 A GB 1186429A GB 2742867 A GB2742867 A GB 2742867A GB 2742867 A GB2742867 A GB 2742867A GB 1186429 A GB1186429 A GB 1186429A
Authority
GB
United Kingdom
Prior art keywords
taps
relating
cutting
screw thread
internal screw
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
GB2742867A
Inventor
Thomas Mclaughlan Aitken
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
Application filed by Individual filed Critical Individual
Priority to GB2742867A priority Critical patent/GB1186429A/en
Publication of GB1186429A publication Critical patent/GB1186429A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G5/00—Thread-cutting tools; Die-heads
    • B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
    • B23G5/06—Taps
    • B23G5/064—Taps with weakened shank portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2200/00—Details of threading tools
    • B23G2200/28—Threading tools having a conical form

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supports For Plants (AREA)

Abstract

1,186,429. Taps. T. M. AITKEN. 21 May, 1968 [14 June, 1967], No. 27428/67. Heading B3N. A tap has a weakened portion 15 which fractures if the tap seizes, and flats 19 are provided for unscrewing the broken tap. Flats 19 may extend up to driving flats 14.
GB2742867A 1967-06-14 1967-06-14 Improvements in or relating to Taps for Cutting an Internal Screw Thread Expired GB1186429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2742867A GB1186429A (en) 1967-06-14 1967-06-14 Improvements in or relating to Taps for Cutting an Internal Screw Thread

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2742867A GB1186429A (en) 1967-06-14 1967-06-14 Improvements in or relating to Taps for Cutting an Internal Screw Thread

Publications (1)

Publication Number Publication Date
GB1186429A true GB1186429A (en) 1970-04-02

Family

ID=10259433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2742867A Expired GB1186429A (en) 1967-06-14 1967-06-14 Improvements in or relating to Taps for Cutting an Internal Screw Thread

Country Status (1)

Country Link
GB (1) GB1186429A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497713A1 (en) * 1981-01-09 1982-07-16 Stahl Sa Fils J Universal wood bit fitting - has square and cylindrical sections on tail end for fitting hand braces or electric drill chucks
US5152642A (en) * 1991-06-12 1992-10-06 Hextap, Inc. Metal injection molded rotary metal cutting tool
GB2359038A (en) * 2000-02-02 2001-08-15 Liu Lien Huang Cutting tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497713A1 (en) * 1981-01-09 1982-07-16 Stahl Sa Fils J Universal wood bit fitting - has square and cylindrical sections on tail end for fitting hand braces or electric drill chucks
US5152642A (en) * 1991-06-12 1992-10-06 Hextap, Inc. Metal injection molded rotary metal cutting tool
GB2359038A (en) * 2000-02-02 2001-08-15 Liu Lien Huang Cutting tool

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees