GB664129A - Improvements in screw thread taps - Google Patents

Improvements in screw thread taps

Info

Publication number
GB664129A
GB664129A GB2679149A GB2679149A GB664129A GB 664129 A GB664129 A GB 664129A GB 2679149 A GB2679149 A GB 2679149A GB 2679149 A GB2679149 A GB 2679149A GB 664129 A GB664129 A GB 664129A
Authority
GB
United Kingdom
Prior art keywords
screw thread
taps
flutes
oct
tap
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
GB2679149A
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.)
HAROLD GEORGE CARMICHAEL WILSO
Original Assignee
HAROLD GEORGE CARMICHAEL WILSO
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 BE505294D priority Critical patent/BE505294A/xx
Application filed by HAROLD GEORGE CARMICHAEL WILSO filed Critical HAROLD GEORGE CARMICHAEL WILSO
Priority to GB2679149A priority patent/GB664129A/en
Publication of GB664129A publication Critical patent/GB664129A/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
    • 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
    • B23G2200/48—Spiral grooves, i.e. spiral flutes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Toys (AREA)

Abstract

664,129. Taps. HAYCOCK, H. J., and WILSON, H. G. C. Oct. 16, 1950 [Oct. 19, 1949], No. 26791/49. Class 83 (iii). The flutes 1 of a helicallyfluted tap have a helix angle of between 40 and 50 degrees, preferably 45 degrees, to assist in the removal of swarf, particularly from blind holes. The flutes are of the same hand as the threads 2 of the tap and the trailing edges 4 of the threaded lands are backed off.
GB2679149A 1949-10-19 1949-10-19 Improvements in screw thread taps Expired GB664129A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE505294D BE505294A (en) 1949-10-19
GB2679149A GB664129A (en) 1949-10-19 1949-10-19 Improvements in screw thread taps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2679149A GB664129A (en) 1949-10-19 1949-10-19 Improvements in screw thread taps

Publications (1)

Publication Number Publication Date
GB664129A true GB664129A (en) 1952-01-02

Family

ID=10249260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2679149A Expired GB664129A (en) 1949-10-19 1949-10-19 Improvements in screw thread taps

Country Status (2)

Country Link
BE (1) BE505294A (en)
GB (1) GB664129A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1116509B (en) * 1953-04-25 1961-11-02 Helmut Glimpel Taps

Also Published As

Publication number Publication date
BE505294A (en)

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