GB571391A - Taps or tools for cutting internal screw-threads - Google Patents

Taps or tools for cutting internal screw-threads

Info

Publication number
GB571391A
GB571391A GB601/44A GB60144A GB571391A GB 571391 A GB571391 A GB 571391A GB 601/44 A GB601/44 A GB 601/44A GB 60144 A GB60144 A GB 60144A GB 571391 A GB571391 A GB 571391A
Authority
GB
United Kingdom
Prior art keywords
tap
taps
opening
cutting
jan
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
GB601/44A
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 GB571391A publication Critical patent/GB571391A/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
    • B23G5/068—Taps with means for removing the broken tap
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/904—Tool or Tool with support with pitch-stabilizing ridge
    • Y10T408/9048—Extending outwardly from tool-axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Milling Processes (AREA)
  • Dowels (AREA)

Abstract

571,391. Taps. CONTALDI, P. Jan. 12, 1944, No. 601. Convention date, Jan. 15, 1943. [Class 83 (iii)] A tap comprising' screw-threaded cutting 'segments 24 separated by longitudinal flutes 23 and an end portion 22 adapted to be gripped by a wrench or the like is provided with an axial opening 25 extending through its whole length or through the-length of its threaded part, the opening being of non-circular crosssection with its longer radii directed towards the threaded cutting segments. If the tap breaks in the work, the broken portion may be removed by means of a tool 33 inserted in the hole 25, as shown in Fig. 8. The invention is described with reference to a tapered tap and a cylindrical bottoming tap. The opening 25 is preferably of polygonal cross-section with a corner of the polygon directed towards each cutting segment so that the sides of the polygon are adjacent the fluted portions.
GB601/44A 1943-01-15 1944-01-12 Taps or tools for cutting internal screw-threads Expired GB571391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US472461A US2335741A (en) 1943-01-15 1943-01-15 Tap for cutting internal screw threads

Publications (1)

Publication Number Publication Date
GB571391A true GB571391A (en) 1945-08-22

Family

ID=23875590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB601/44A Expired GB571391A (en) 1943-01-15 1944-01-12 Taps or tools for cutting internal screw-threads

Country Status (2)

Country Link
US (1) US2335741A (en)
GB (1) GB571391A (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE504139A (en) * 1950-06-21
US4466762A (en) * 1981-06-12 1984-08-21 General Electric Company Tool for forming internal screw threads
US4628171A (en) * 1985-01-11 1986-12-09 Port City Machine & Tool Company Mechanical feed EDM machine for making threaded and nonthreaded bores
US4762444A (en) * 1987-03-16 1988-08-09 Mena Carl M Screw tap with lubrication and extraction bores
US5037251A (en) * 1989-03-24 1991-08-06 Roth Alfred C Thread tap
US5937860A (en) * 1997-04-10 1999-08-17 Cook; Daniel J. Laryngeal mask
US8631796B2 (en) * 1997-04-10 2014-01-21 Cookgas, L.L.C. Laryngeal mask
US6293740B1 (en) 1999-09-01 2001-09-25 Northern Tool Sales And Service Company Threading tool
JP3702272B2 (en) * 2000-06-16 2005-10-05 フリアテツク・アクテイエンゲゼルシヤフト Tapping stop valve
US20040086349A1 (en) * 2002-10-31 2004-05-06 Branum John Wesley Spark plug tap
US6921236B2 (en) * 2002-11-05 2005-07-26 Edward Rahberger Tool for repairing damaged threads
SE526392C2 (en) * 2003-08-28 2005-09-06 Seco Tools Ab Tool arrangement and chip cutting tools where the tool has a channel of non-circular cross section
US7900632B2 (en) * 2006-08-18 2011-03-08 Cookgas, L.L.C. Laryngeal mask with esophageal blocker and bite block
US7784464B2 (en) * 2006-09-15 2010-08-31 Cookgas, Llc Laryngeal mask
US7780900B2 (en) * 2006-09-15 2010-08-24 Cookgas, Llc Methods of forming a laryngeal mask
US7544026B2 (en) * 2007-02-13 2009-06-09 Irwin Industrial Tool Company Drill bit screw tip
US7934502B2 (en) 2007-05-11 2011-05-03 Cookgas, Llc Self-pressurizing supraglottic airway
US20090074526A1 (en) * 2007-09-18 2009-03-19 Yg-1 Co., Ltd. Compound Relief Tap
US20090090356A1 (en) * 2007-10-03 2009-04-09 Cook Daniel J Supralaryngeal Airway Including Instrument Ramp
DE102008049029B4 (en) * 2008-09-25 2012-11-08 Völkel GmbH screw tap
DE102008053772A1 (en) * 2008-10-22 2010-04-29 Komet Jel Precision Tools thread former
CN103115052A (en) * 2013-02-21 2013-05-22 哈尔滨工业大学 Cored screw incapable of plugging screw hole after breakage
EP3197624A1 (en) * 2014-09-23 2017-08-02 Danske Vaerktoej ApS Thread cutting tap
USD769684S1 (en) 2015-04-30 2016-10-25 A & E Incorporated Thread restorer tool
KR102000272B1 (en) * 2017-11-30 2019-07-15 김민재 Tap
US20210140455A1 (en) * 2019-10-14 2021-05-13 Geolyn Holdings LLC Apparatus and method for anchoring fasteners
US11618092B2 (en) * 2020-01-27 2023-04-04 Devin Corbit Bottoming tap and chaser and method of use

Also Published As

Publication number Publication date
US2335741A (en) 1943-11-30

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