GB663163A - Improvements in and relating to screws and screw-drivers - Google Patents

Improvements in and relating to screws and screw-drivers

Info

Publication number
GB663163A
GB663163A GB33059/47A GB3305947A GB663163A GB 663163 A GB663163 A GB 663163A GB 33059/47 A GB33059/47 A GB 33059/47A GB 3305947 A GB3305947 A GB 3305947A GB 663163 A GB663163 A GB 663163A
Authority
GB
United Kingdom
Prior art keywords
bit
angle
walls
plane
screwdrivers
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
GB33059/47A
Other languages
English (en)
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.)
Guest Keen and Nettlefolds Ltd
Original Assignee
Guest Keen and Nettlefolds Ltd
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 Guest Keen and Nettlefolds Ltd filed Critical Guest Keen and Nettlefolds Ltd
Publication of GB663163A publication Critical patent/GB663163A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/005—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0023—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially cross-shaped
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/919—Screw having driving contacts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Joining Of Building Structures In Genera (AREA)
GB33059/47A 1942-12-30 1947-12-15 Improvements in and relating to screws and screw-drivers Expired GB663163A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US470671A US2474994A (en) 1942-12-30 1942-12-30 Screw socket

Publications (1)

Publication Number Publication Date
GB663163A true GB663163A (en) 1951-12-19

Family

ID=23868535

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33059/47A Expired GB663163A (en) 1942-12-30 1947-12-15 Improvements in and relating to screws and screw-drivers

Country Status (7)

Country Link
US (1) US2474994A (fi)
BE (1) BE478339A (fi)
CH (1) CH281532A (fi)
DE (1) DE966464C (fi)
FR (1) FR958075A (fi)
GB (1) GB663163A (fi)
NL (1) NL74183C (fi)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122963A (en) * 1964-03-03 Recess head screw
US3028781A (en) * 1958-06-26 1962-04-10 Phillips Screw Co Recessed head fastener with oblique recess
US3025896A (en) * 1958-06-26 1962-03-20 Phillips Screw Co Tools for recessed head fastener with oblique recess
US3187790A (en) * 1959-05-18 1965-06-08 Hi Shear Rivet Tool Company Screw and screw driver coupling
NL276619A (fi) * 1961-03-31
US4084478A (en) * 1974-09-12 1978-04-18 Phillips Screw Company Screw heads
US4202244A (en) * 1978-07-26 1980-05-13 Technofast, Inc. Recessed head screw
EP0551930A3 (en) * 1988-11-14 1993-08-18 Black & Decker Inc. Screwdriver bit for phillips-head fasteners
US4998454A (en) * 1988-11-14 1991-03-12 Black & Decker Inc. Screwdriver bit for phillips-head fasteners
US5660091A (en) * 1996-02-06 1997-08-26 Walter Lorenz Surgical, Inc. Blunt-nosed, self-retaining screwdriver
US6223634B1 (en) 1997-10-03 2001-05-01 Phillips Screw Company Recessed head fastener and driver systems
US5957645A (en) 1997-10-31 1999-09-28 Phillips Screw Company Spiral drive system for threaded fasteners
US6328517B1 (en) * 1999-03-30 2001-12-11 Gregory Steven Mann Combination sidewalk bolt
US6890139B2 (en) 2002-02-26 2005-05-10 Phillips Screw Company Fastener having recess useable with multiple drivers and method of manufacture
US7293949B2 (en) * 2004-04-15 2007-11-13 Phillips Screw Company Spiral drive fastener with friction engageable surface
US7255522B2 (en) * 2004-10-07 2007-08-14 Phillips Screw Company Spiral drive fastener with engagement ramp
TWI385312B (zh) * 2008-04-21 2013-02-11 Infastech Ip Pte Ltd 驅動系統
JP5021599B2 (ja) * 2008-10-10 2012-09-12 クラウン精密工業株式会社 螺子におけるドライバービット嵌合用十字溝の構造
US8291795B2 (en) 2010-03-02 2012-10-23 Phillips Screw Company Fastener system with stable engagement and stick fit
US9422965B2 (en) 2013-05-10 2016-08-23 Bryce Fastener, Inc. Methods and apparatus for asymmetrical fastening system
US20150266169A1 (en) 2013-05-10 2015-09-24 Bryce Fastener, Inc Methods and apparatus for asymmetrical fastening system
US9358060B2 (en) * 2013-07-25 2016-06-07 Zimmer Spine, Inc. Self-retaining driver for a bone screw
CA3098289A1 (en) 2017-04-25 2018-11-01 William Norton Helical toothed driver and compatible fastener
US10995788B2 (en) 2017-12-15 2021-05-04 Phillips Screw Company Stick fit fastener recess system
US11466720B2 (en) 2017-12-15 2022-10-11 Phillips Screw Company Stick fit fastener recess system
USD897806S1 (en) 2018-04-30 2020-10-06 William Norton Driver
WO2020154522A1 (en) * 2019-01-24 2020-07-30 Acument Intellectual Properties, Llc Enhanced stick fit bit design
USD980707S1 (en) * 2021-02-15 2023-03-14 Min Woo Lee Bolt

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10612C (de) * P. SCHNEITLER in Berlin N., Müllerstrafse 179B Neuerungen an Schraubenköpfen und zugehörigen Schraubenziehern
US2046838A (en) * 1934-07-03 1936-07-07 Phillips Screw Co Screw driver
NL42923C (fi) * 1934-07-03
US2046839A (en) * 1935-01-15 1936-07-07 Phillips Screw Co Screw
US2066484A (en) * 1935-01-15 1937-01-05 Philips Screw Company Screw
US2046840A (en) * 1935-01-15 1936-07-07 Phillips Screw Co Screw driver
US2084079A (en) * 1935-11-15 1937-06-15 American Screw Co Screw
US2084078A (en) * 1935-11-15 1937-06-15 American Screw Co Method of making screws
US2058197A (en) * 1935-12-12 1936-10-20 Maxwell A West Screw
US2296887A (en) * 1941-10-17 1942-09-29 Champion Inc Screw

Also Published As

Publication number Publication date
BE478339A (fi) 1948-01-31
US2474994A (en) 1949-07-05
NL74183C (nl) 1954-03-15
DE966464C (de) 1957-08-08
FR958075A (fr) 1950-03-03
CH281532A (fr) 1952-03-15

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