GB640046A - Improvements in bolts, setscrews and the like - Google Patents

Improvements in bolts, setscrews and the like

Info

Publication number
GB640046A
GB640046A GB30692/47A GB3069247A GB640046A GB 640046 A GB640046 A GB 640046A GB 30692/47 A GB30692/47 A GB 30692/47A GB 3069247 A GB3069247 A GB 3069247A GB 640046 A GB640046 A GB 640046A
Authority
GB
United Kingdom
Prior art keywords
slots
head
run
bolts
setscrews
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
GB30692/47A
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 GB30692/47A priority Critical patent/GB640046A/en
Priority to US27345A priority patent/US2543705A/en
Publication of GB640046A publication Critical patent/GB640046A/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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/284—Locking by means of elastic deformation
    • 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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/284—Locking by means of elastic deformation
    • F16B39/286—Locking by means of elastic deformation caused by saw cuts
    • 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
    • Y10S411/955—Locked bolthead or nut
    • Y10S411/956—Automatic base clutch
    • Y10S411/96—Friction

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

640,046. Locking bolts without nuts. PLACE, C. E. S. Nov. 19, 1947, No. 30692. [Class 89(i)] An annular groove 3, Fig. 3, is formed on the bearing face of the head of a bolt or set screw, adjacent the shank. One or more slots 5 are formed diametrically across the free face of the head to a depth of from one-third to one-half the thickness. In the case of polygonal heads the slots preferably run from the centres of the flats though they may run from the corners. A recess may be drilled at the intersection of the slots. When only a single slot is used this may be of V-section to facilitate the production of the slot during the upsetting of the head. The bottoms of the slots may be flat or concave. Specifications 16535/45 (as open to inspection under Sect. 91) and 423,340 are referred to.
GB30692/47A 1947-11-19 1947-11-19 Improvements in bolts, setscrews and the like Expired GB640046A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB30692/47A GB640046A (en) 1947-11-19 1947-11-19 Improvements in bolts, setscrews and the like
US27345A US2543705A (en) 1947-11-19 1948-05-15 Resilient head lock bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30692/47A GB640046A (en) 1947-11-19 1947-11-19 Improvements in bolts, setscrews and the like

Publications (1)

Publication Number Publication Date
GB640046A true GB640046A (en) 1950-07-12

Family

ID=10311623

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30692/47A Expired GB640046A (en) 1947-11-19 1947-11-19 Improvements in bolts, setscrews and the like

Country Status (2)

Country Link
US (1) US2543705A (en)
GB (1) GB640046A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1035411B (en) * 1954-09-23 1958-07-31 Rudolf Koerber Dipl Ing Head of a machine screw or machine nut to achieve a resilient contact pressure
US3054321A (en) * 1959-07-15 1962-09-18 Macchia Anthony Screw assembly with ball and socket connection
WO1986006449A1 (en) * 1985-04-22 1986-11-06 Farley Metals, Inc. Light gauge self-tapping sheet metal screw

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716759A (en) * 1951-07-19 1955-09-06 Nat Screw & Mfg Company Dies for making headed fasteners
DE1040322B (en) * 1954-01-26 1958-10-02 Johannes Schwarz Serrated screw on the shaft part
US2833325A (en) * 1954-02-09 1958-05-06 Nat Screw & Mfg Company Countersunk flexible head threaded fastener
US2897867A (en) * 1957-05-06 1959-08-04 Torre Joseph La Lock nut having pivoting concave bearing end and inwardly deformed tip to effectuate uniformly stressed threads
DE1167123B (en) * 1957-05-06 1964-04-02 Kathryn La Torre Self-locking mother
US2955690A (en) * 1958-01-16 1960-10-11 United Carr Fastener Corp Fastening device
NL109744C (en) * 1960-05-26
NL122656C (en) * 1960-09-13
US3415154A (en) * 1967-02-02 1968-12-10 Parker Kalon Corp Polygonal fasteners having milled slots
US3383974A (en) * 1967-07-21 1968-05-21 Norman C. Dahl Load indicating means
US3718065A (en) * 1970-12-24 1973-02-27 Iit Res Inst Tension indicating fastener
US3718066A (en) * 1970-12-28 1973-02-27 Iit Res Inst Tension indicating fastener
SE424573B (en) * 1978-11-13 1982-07-26 Atlas Copco Ab BULK FOR AXIAL POWER TRANSFER
US4921380A (en) * 1989-04-03 1990-05-01 Tronetti Jr Peter J Fastener assembly
ITUD20070074A1 (en) * 2007-04-23 2008-10-24 Visottica Ind Spa PROCEDURE FOR THE REALIZATION OF A SCREW FOR GLASSES, AND SCREW FOR GLASSES SO MADE
JP5083396B2 (en) * 2010-09-21 2012-11-28 株式会社ユニオン精密 Fastening screw manufacturing method
US12055173B2 (en) 2021-06-15 2024-08-06 Lockheed Martin Corporation Flexible head fasteners

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1420725A (en) * 1921-03-16 1922-06-27 Mattson Julius Clamping device
NL34984B (en) * 1925-11-04
GB276786A (en) * 1926-07-10 1927-09-08 John Wearham Improvements in or relating to screws
US1966044A (en) * 1933-06-17 1934-07-10 Charles E S Place Cap screw or bolt
US2076041A (en) * 1935-11-29 1937-04-06 Central Screw Company Screw
GB548653A (en) * 1941-12-02 1942-10-19 Cosby Donald Philipps Smallpei Improvements relating to bolts and the like

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1035411B (en) * 1954-09-23 1958-07-31 Rudolf Koerber Dipl Ing Head of a machine screw or machine nut to achieve a resilient contact pressure
US3054321A (en) * 1959-07-15 1962-09-18 Macchia Anthony Screw assembly with ball and socket connection
WO1986006449A1 (en) * 1985-04-22 1986-11-06 Farley Metals, Inc. Light gauge self-tapping sheet metal screw
US4764066A (en) * 1985-04-22 1988-08-16 Farley Metals, Inc. Light gauge self-tapping sheet metal screw

Also Published As

Publication number Publication date
US2543705A (en) 1951-02-27

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