GB178628A - Improvements in or relating to screw cutting machines - Google Patents

Improvements in or relating to screw cutting machines

Info

Publication number
GB178628A
GB178628A GB505421A GB505421A GB178628A GB 178628 A GB178628 A GB 178628A GB 505421 A GB505421 A GB 505421A GB 505421 A GB505421 A GB 505421A GB 178628 A GB178628 A GB 178628A
Authority
GB
United Kingdom
Prior art keywords
threads
chasers
bevelled
cutting
relating
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
GB505421A
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.)
DANIELL Ltd SA
Original Assignee
DANIELL Ltd SA
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 DANIELL Ltd SA filed Critical DANIELL Ltd SA
Priority to GB505421A priority Critical patent/GB178628A/en
Publication of GB178628A publication Critical patent/GB178628A/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
    • B23G5/08—Thread-cutting tools; Die-heads with means for adjustment
    • B23G5/10—Die-heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

178,628. Daniell, Ltd., S. A., and Page, A. E. Feb. 14, 1921. Chasers.-Relates to chasers for dieheads of the kind that have guiding- threads at the rear of the cutting - threads and consists in the method of making the special cutting- edge. By milling or otherwise the face b of each chaser is inclined to the axis of the work so that the leading end c is of less depth than the rear end d. The chasers are fixed in the die-head and a master tap is run between them to shape the threads. As usual the tap is of slightly larger diameter than the work on which the chasers are to cut a thread. The part from o to m, Fig. 2, is bevelled in the usual way to form the cutting- threads, and the guiding-threads g are slightly bevelled at h. The back of the chaser may be bevelled as at i.
GB505421A 1921-02-14 1921-02-14 Improvements in or relating to screw cutting machines Expired GB178628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB505421A GB178628A (en) 1921-02-14 1921-02-14 Improvements in or relating to screw cutting machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB505421A GB178628A (en) 1921-02-14 1921-02-14 Improvements in or relating to screw cutting machines

Publications (1)

Publication Number Publication Date
GB178628A true GB178628A (en) 1922-04-27

Family

ID=9788878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB505421A Expired GB178628A (en) 1921-02-14 1921-02-14 Improvements in or relating to screw cutting machines

Country Status (1)

Country Link
GB (1) GB178628A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103464796A (en) * 2013-09-06 2013-12-25 成都工具研究所有限公司 Complex molding comb tooth cutter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103464796A (en) * 2013-09-06 2013-12-25 成都工具研究所有限公司 Complex molding comb tooth cutter
CN103464796B (en) * 2013-09-06 2016-03-30 成都工具研究所有限公司 Complicated shaping comb tooth cutter

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