US150346A - Improvement in screw-taps - Google Patents

Improvement in screw-taps Download PDF

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Publication number
US150346A
US150346A US150346DA US150346A US 150346 A US150346 A US 150346A US 150346D A US150346D A US 150346DA US 150346 A US150346 A US 150346A
Authority
US
United States
Prior art keywords
taps
improvement
screw
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 - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US150346A publication Critical patent/US150346A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • Y10T408/9046—Tool or Tool with support with pitch-stabilizing ridge including tapered section
    • Y10T408/90467—Tool or Tool with support with pitch-stabilizing ridge including tapered section and relieved cutting edge
    • 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

Description

US150346D Improvement in screw-taps Expired - Lifetime US150346A (en)

Publications (1)

Publication Number Publication Date
US150346A true US150346A (en) 1874-04-28

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ID=2219759

Family Applications (1)

Application Number Title Priority Date Filing Date
US150346D Expired - Lifetime US150346A (en) Improvement in screw-taps

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US (1) US150346A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030108396A1 (en) * 2001-11-14 2003-06-12 Friedrich Schwarz Thread cutting tool having cutting teeth with stepped undercut flanks
US20040258492A1 (en) * 2001-05-22 2004-12-23 Bjorn Hakansson Thread forming tap with a non-circular cross-section and radially extending cutting edges
US7114891B2 (en) * 2001-05-22 2006-10-03 Sandvik Intellectual Property Ab Thread forming tool with annular ridge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040258492A1 (en) * 2001-05-22 2004-12-23 Bjorn Hakansson Thread forming tap with a non-circular cross-section and radially extending cutting edges
US7114891B2 (en) * 2001-05-22 2006-10-03 Sandvik Intellectual Property Ab Thread forming tool with annular ridge
US7150588B2 (en) * 2001-05-22 2006-12-19 Sandvik Intellectual Property Ab Thread forming tap with a non-circular cross-section and radially extending cutting edges
US20030108396A1 (en) * 2001-11-14 2003-06-12 Friedrich Schwarz Thread cutting tool having cutting teeth with stepped undercut flanks
US6918718B2 (en) * 2001-11-14 2005-07-19 Sandvik Ab Thread cutting tool having cutting teeth with stepped undercut flanks

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