GB562657A - Improvements in taps, reamers and the like - Google Patents

Improvements in taps, reamers and the like

Info

Publication number
GB562657A
GB562657A GB24943A GB24943A GB562657A GB 562657 A GB562657 A GB 562657A GB 24943 A GB24943 A GB 24943A GB 24943 A GB24943 A GB 24943A GB 562657 A GB562657 A GB 562657A
Authority
GB
United Kingdom
Prior art keywords
reamers
taps
groove
drills
tool
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
GB24943A
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 GB24943A priority Critical patent/GB562657A/en
Publication of GB562657A publication Critical patent/GB562657A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/005—Cylindrical shanks of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00—Reaming tools
    • 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
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0212—Shanks of tools having a reduced cross section at a position where breakage of the tool is preferred
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/026—Grooves

Abstract

562,657. Drills, reamers, taps, &c. LANFRANCONI, F. A. Jan. 6, 1943, No. 249. [Class 83 (iii)] Drills, reamers, taps and like tools have a groove 2 cut in the upper pari of the shank above the cutting part of the tool, the depth of the groove cutting down the cross-section to about the same area as the minimum section of the cutting part of the too so that in the event of overstrair fracture occurs at the groove leaving sufficient of the shank protruding to enable the tool to be removed. The sharp edge 4 may be rounded off.
GB24943A 1943-01-06 1943-01-06 Improvements in taps, reamers and the like Expired GB562657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24943A GB562657A (en) 1943-01-06 1943-01-06 Improvements in taps, reamers and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24943A GB562657A (en) 1943-01-06 1943-01-06 Improvements in taps, reamers and the like

Publications (1)

Publication Number Publication Date
GB562657A true GB562657A (en) 1944-07-11

Family

ID=9701055

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24943A Expired GB562657A (en) 1943-01-06 1943-01-06 Improvements in taps, reamers and the like

Country Status (1)

Country Link
GB (1) GB562657A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740974A (en) * 1954-03-15 1956-04-10 Lewis Lazarus Rotary metal cutting tool having a locally annealed shank portion
US4303360A (en) 1980-02-29 1981-12-01 Giddings & Lewis, Inc. Power drawfinger system for machine tool spindle
US5152642A (en) * 1991-06-12 1992-10-06 Hextap, Inc. Metal injection molded rotary metal cutting tool
WO1999043459A1 (en) * 1998-02-25 1999-09-02 Lang Guenter Rotary cutting tool
GB2359038A (en) * 2000-02-02 2001-08-15 Liu Lien Huang Cutting tool

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740974A (en) * 1954-03-15 1956-04-10 Lewis Lazarus Rotary metal cutting tool having a locally annealed shank portion
US4303360A (en) 1980-02-29 1981-12-01 Giddings & Lewis, Inc. Power drawfinger system for machine tool spindle
US5152642A (en) * 1991-06-12 1992-10-06 Hextap, Inc. Metal injection molded rotary metal cutting tool
WO1999043459A1 (en) * 1998-02-25 1999-09-02 Lang Guenter Rotary cutting tool
GB2359038A (en) * 2000-02-02 2001-08-15 Liu Lien Huang Cutting tool

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