GB616221A - Improvements in tapping and threading devices - Google Patents

Improvements in tapping and threading devices

Info

Publication number
GB616221A
GB616221A GB26108/46A GB2610846A GB616221A GB 616221 A GB616221 A GB 616221A GB 26108/46 A GB26108/46 A GB 26108/46A GB 2610846 A GB2610846 A GB 2610846A GB 616221 A GB616221 A GB 616221A
Authority
GB
United Kingdom
Prior art keywords
tapping
tap
thread
screwing
aug
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
GB26108/46A
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
Publication of GB616221A publication Critical patent/GB616221A/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
    • B23G7/00—Forming thread by means of tools similar both in form and in manner of use to thread-cutting tools, but without removing any material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Forging (AREA)

Abstract

616,221. Screwing and tapping. DURAND, M. P. Aug. 30, 1946, No. 26108. Convention date, Aug. 31, 1945. [Class 83 (iii)] A tapping-device is characterised by two pilot threads 4, 6, arranged coaxially with the tap 5, the thread 6 being mounted on the tap and the thread 4 on the work - carrying member 2 and the threads 4, 6 being so arranged that they are normally out of engagement, but come into engagement with each other just before the tap engages the work 3. In a modification, the pilot thread on the tap is disposed interiorly thereof. In a further modification, the invention is applied to a screwing-die.
GB26108/46A 1945-08-31 1946-08-30 Improvements in tapping and threading devices Expired GB616221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR616221X 1945-08-31

Publications (1)

Publication Number Publication Date
GB616221A true GB616221A (en) 1949-01-18

Family

ID=8981448

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26108/46A Expired GB616221A (en) 1945-08-31 1946-08-30 Improvements in tapping and threading devices

Country Status (1)

Country Link
GB (1) GB616221A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312696U (en) * 1976-07-15 1978-02-02

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312696U (en) * 1976-07-15 1978-02-02

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