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GB696833A - Improvements in or relating to engineers' taps and drills - Google Patents

Improvements in or relating to engineers' taps and drills

Info

Publication number
GB696833A
GB696833A GB2815950A GB2815950A GB696833A GB 696833 A GB696833 A GB 696833A GB 2815950 A GB2815950 A GB 2815950A GB 2815950 A GB2815950 A GB 2815950A GB 696833 A GB696833 A GB 696833A
Authority
GB
United Kingdom
Prior art keywords
thread
relief
drills
taps
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
GB2815950A
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.)
REGINALD BASTIEN
Original Assignee
REGINALD BASTIEN
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 REGINALD BASTIEN filed Critical REGINALD BASTIEN
Priority to GB2815950A priority Critical patent/GB696833A/en
Publication of GB696833A publication Critical patent/GB696833A/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
    • B23G5/20—Thread-cutting tools; Die-heads combined with other tools, e.g. drills
    • 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
    • B23G2200/14—Multifunctional threading tools
    • B23G2200/143—Tools comprising means for drilling
    • 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
    • B23G2200/14—Multifunctional threading tools
    • B23G2200/146—Tools comprising a tap

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

696,833. Taps; drills. BASTIEN, R. Feb. 18, 1952 [Nov. 17, 1950; June 15, 1951], Nos. 28159/50 and 14171/51. Class 83 (iii). A tap has two straight or spiral flutes 7 which leave two wide threaded portions 4 on which relief is provided by removing all or a portion of the thread centrally between the cutting and trailing edges to form a flat 8 merging gradually into the cutting and trailing edges. The tap may be combined with a drill 1 having similar relief on the lands 2. The first Provisional Specification describes also a relief provided by centrally reducing the top, sides and bottom of the thread without altering the thread form.
GB2815950A 1950-11-17 1950-11-17 Improvements in or relating to engineers' taps and drills Expired GB696833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2815950A GB696833A (en) 1950-11-17 1950-11-17 Improvements in or relating to engineers' taps and drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2815950A GB696833A (en) 1950-11-17 1950-11-17 Improvements in or relating to engineers' taps and drills

Publications (1)

Publication Number Publication Date
GB696833A true GB696833A (en) 1953-09-09

Family

ID=10271219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2815950A Expired GB696833A (en) 1950-11-17 1950-11-17 Improvements in or relating to engineers' taps and drills

Country Status (1)

Country Link
GB (1) GB696833A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2852906A1 (en) * 1978-12-07 1980-06-12 Spezialfabrik Fuer Praezisions Tool for rolling internal threads - has fluted guide section with edges effective only in opposite direction to thread forming direction
FR2489191A1 (en) * 1980-08-29 1982-03-05 Hosoi Toshiaki IMPROVED FOREST, PARTICULARLY FOR DRILLING DEEP HOLES
GB2217241A (en) * 1988-04-16 1989-10-25 Marwin Cutting Tools Ltd Drill router and chuck therefor
GB2275632A (en) * 1993-02-11 1994-09-07 Gordon Wall Thread-cutting drill
WO2007090600A1 (en) * 2006-02-09 2007-08-16 Ernst Reime Vertriebs Gmbh Method of producing a countersunk tapped hole and drill bit for carrying out the method
CN105252049A (en) * 2015-11-12 2016-01-20 广东鸿特精密技术（台山）有限公司 Reamer and screw tap compound tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2852906A1 (en) * 1978-12-07 1980-06-12 Spezialfabrik Fuer Praezisions Tool for rolling internal threads - has fluted guide section with edges effective only in opposite direction to thread forming direction
FR2489191A1 (en) * 1980-08-29 1982-03-05 Hosoi Toshiaki IMPROVED FOREST, PARTICULARLY FOR DRILLING DEEP HOLES
GB2217241A (en) * 1988-04-16 1989-10-25 Marwin Cutting Tools Ltd Drill router and chuck therefor
GB2275632A (en) * 1993-02-11 1994-09-07 Gordon Wall Thread-cutting drill
GB2275632B (en) * 1993-02-11 1995-09-27 Gordon Wall Thread-drill
WO2007090600A1 (en) * 2006-02-09 2007-08-16 Ernst Reime Vertriebs Gmbh Method of producing a countersunk tapped hole and drill bit for carrying out the method
CN105252049A (en) * 2015-11-12 2016-01-20 广东鸿特精密技术（台山）有限公司 Reamer and screw tap compound tool

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