GB833258A - Improvements in socket type screws - Google Patents

Improvements in socket type screws

Info

Publication number
GB833258A
GB833258A GB33760/56A GB3376056A GB833258A GB 833258 A GB833258 A GB 833258A GB 33760/56 A GB33760/56 A GB 33760/56A GB 3376056 A GB3376056 A GB 3376056A GB 833258 A GB833258 A GB 833258A
Authority
GB
United Kingdom
Prior art keywords
screw
socket type
type screws
sides
sockethead
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
GB33760/56A
Inventor
Carl Herman Ansingh
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.)
PL Robertson Manufacturing Co Ltd
Original Assignee
PL Robertson Manufacturing Co 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
Priority to US611016A priority Critical patent/US2914984A/en
Application filed by PL Robertson Manufacturing Co Ltd filed Critical PL Robertson Manufacturing Co Ltd
Priority to GB33760/56A priority patent/GB833258A/en
Priority to BE589497A priority patent/BE589497Q/en
Publication of GB833258A publication Critical patent/GB833258A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16B23/0038—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 prismatic with up to six edges, e.g. triangular, square, pentagonal, Allen-type cross-sections
    • 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)
  • Forging (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

833,258. Screwdrivers. ROBERTSON MFG. CO. Ltd., P. L. Nov. 5, 1956, No. 33760/56. Class 61. [Also in Group XXV] A screw-driver for a sockethead screw has a screw-engaging tip 24 with a portion 25 in the form of a pyramid of square cross-section, the sides 28 tapering towards the conical end 26. The junctures 27 between the end and the sides are arcuate. Specification 833,257 is referred to.
GB33760/56A 1956-09-20 1956-11-05 Improvements in socket type screws Expired GB833258A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US611016A US2914984A (en) 1956-09-20 1956-09-20 Screw socket of pyramidal cross section terminating in a conical bottom wall
GB33760/56A GB833258A (en) 1956-09-20 1956-11-05 Improvements in socket type screws
BE589497A BE589497Q (en) 1956-09-20 1960-04-07 Screw socket, having a pyramidal cross section and ending in a conical bottom wall

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US611016A US2914984A (en) 1956-09-20 1956-09-20 Screw socket of pyramidal cross section terminating in a conical bottom wall
GB33760/56A GB833258A (en) 1956-09-20 1956-11-05 Improvements in socket type screws

Publications (1)

Publication Number Publication Date
GB833258A true GB833258A (en) 1960-04-21

Family

ID=26262004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33760/56A Expired GB833258A (en) 1956-09-20 1956-11-05 Improvements in socket type screws

Country Status (3)

Country Link
US (1) US2914984A (en)
BE (1) BE589497Q (en)
GB (1) GB833258A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49114364U (en) * 1973-02-03 1974-09-30
JPS49115556U (en) * 1973-02-07 1974-10-02
JPS49127669U (en) * 1973-03-01 1974-11-01
DE10065782A1 (en) * 2000-12-30 2002-07-25 Lutz Planitz Screw and associated screw driver with internal funnel-shaped connection device in screw head, and funnel-shaped screw driver end

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237506A (en) * 1963-10-22 1966-03-01 Phillips Screw Co Recessed head fasteners
US3283638A (en) * 1964-05-04 1966-11-08 Robertson Mfg Co Socket head screw
US3640175A (en) * 1968-10-18 1972-02-08 Canada Steel Co Ballistic shape screwhead socket
US3604305A (en) * 1969-06-23 1971-09-14 Robertson Mfg Co Recessed screw
US3972083A (en) * 1971-10-31 1976-08-03 P.L. Robertson Manufacturing Co. Ltd. Punch for making recessed screw
US4285380A (en) * 1979-03-30 1981-08-25 Vsi Corporation Panel fastener
JPS55132409A (en) * 1979-04-03 1980-10-15 Miyagawa Kinzoku Kogyo Screw and its forming jig
US5716280A (en) * 1995-09-29 1998-02-10 Fairchild Holding Corp. Method for forming a fluted fastener
US6626610B1 (en) * 2002-04-02 2003-09-30 Ben L. Seegmiller Cable bolt apparatus and method of installation for mines
US20050249573A1 (en) * 2003-01-21 2005-11-10 Bernard Tanner Screw and corresponding driver
US20070082526A1 (en) * 2003-01-21 2007-04-12 Bernard Tanner Screwdriver Bit and Mating Socket
US20070036632A1 (en) * 2005-08-12 2007-02-15 Kwantex Research Inc. Screw having a head formed with an inner standard square recess part and an outer guiding recess part
US8418587B2 (en) * 2008-11-07 2013-04-16 Milwaukee Electric Tool Corporation Tool bit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1003657A (en) * 1910-02-12 1911-09-19 Peter Lymburner Robertson Screw-blank-heading machine.
US1771610A (en) * 1925-02-16 1930-07-29 Ajax Mfg Co Metal working
US2397216A (en) * 1944-06-16 1946-03-26 Domnic V Stellin Socket head screw
US2559140A (en) * 1945-04-21 1951-07-03 Waterbury Farrel Foundry Co Means for making socketed head screw blanks or the like
US2667650A (en) * 1949-05-03 1954-02-02 Nat Machinery Co Method of making hollow articles
US2631624A (en) * 1950-02-25 1953-03-17 Roland H Wright Screw driver
US2804894A (en) * 1954-08-20 1957-09-03 Cornwall & Patterson Company Screw driver
US2800829A (en) * 1954-08-30 1957-07-30 Wesloc Screw Inc Cruciform recessed screw

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49114364U (en) * 1973-02-03 1974-09-30
JPS49115556U (en) * 1973-02-07 1974-10-02
JPS49127669U (en) * 1973-03-01 1974-11-01
DE10065782A1 (en) * 2000-12-30 2002-07-25 Lutz Planitz Screw and associated screw driver with internal funnel-shaped connection device in screw head, and funnel-shaped screw driver end

Also Published As

Publication number Publication date
BE589497Q (en) 1960-08-01
US2914984A (en) 1959-12-01

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