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GB1348152A - Interference member - Google Patents

Interference member

Info

Publication number
GB1348152A
GB1348152A GB1348152DA GB1348152A GB 1348152 A GB1348152 A GB 1348152A GB 1348152D A GB1348152D A GB 1348152DA GB 1348152 A GB1348152 A GB 1348152A
Authority
GB
United Kingdom
Prior art keywords
crests
troughs
fastener
waves
bore
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
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.)
Lamson and Sessions Co
Original Assignee
Lamson and Sessions Co
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 Lamson and Sessions Co filed Critical Lamson and Sessions Co
Publication of GB1348152A publication Critical patent/GB1348152A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B4/00Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits; Non-releasable friction-grip fastenings
    • F16B4/004Press fits, force fits, interference fits, i.e. fits without heat or chemical treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Forging (AREA)

Abstract

1348152 Bolts; rivets LAMSON & SESSIONS CO 12 Oct 1971 47467/71 Heading F2H A member such as a screw 14, rivet or bush has a shank portion 22 having axially-extending waves on its external surface 36 defined by a series of continuously annular crests 24 and troughs 28, the amplitude of the waves being between 0À001 and 0À005 of an inch, the crests being adapted to interfere with the internal walls of a bore 16, 18 through jointed workpieces 10, 12 to provide a prestressed connection, and the troughs facilitating insertion of the fastener into the bore by reducing frictional contact. The waves are preferably sinusoidal in cross-section, having a pitch of between 0À05 and 0À8, and more especially 0À6, times the bore diameter. The outside diameter of the crests may be increased progressively toward the head of the fastener to provide increasing interference. The crests 24 and troughs 28 preferably extend perpendicularly in relation to the longitudinal axis of the fastener, but may, if desired, be skewed slightly relative to this axis.
GB1348152D 1971-10-12 1971-10-12 Interference member Expired GB1348152A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4746771 1971-10-12

Publications (1)

Publication Number Publication Date
GB1348152A true GB1348152A (en) 1974-03-13

Family

ID=10445080

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1348152D Expired GB1348152A (en) 1971-10-12 1971-10-12 Interference member

Country Status (1)

Country Link
GB (1) GB1348152A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468025A1 (en) * 1979-10-16 1981-04-30 Upat Max Langensiepen Kg METHOD FOR POSITIONING AN ANCHOR BOLT IN A FASTENING BRACKET; ANCHOR BOLT FOR IMPLEMENTING THE METHOD AND METHOD FOR MANUFACTURING THE ANCHOR BOLT.
US20230048081A1 (en) * 2019-07-25 2023-02-16 Newfrey Llc Press-Fit, Friction-Retention Coupling Assembly Between Hard, Inflexible Material Components

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468025A1 (en) * 1979-10-16 1981-04-30 Upat Max Langensiepen Kg METHOD FOR POSITIONING AN ANCHOR BOLT IN A FASTENING BRACKET; ANCHOR BOLT FOR IMPLEMENTING THE METHOD AND METHOD FOR MANUFACTURING THE ANCHOR BOLT.
US20230048081A1 (en) * 2019-07-25 2023-02-16 Newfrey Llc Press-Fit, Friction-Retention Coupling Assembly Between Hard, Inflexible Material Components
US12486926B2 (en) * 2019-07-25 2025-12-02 Newfrey Llc Press-fit, friction-retention coupling assembly between hard, inflexible material components

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Legal Events

Date Code Title Description
PS Patent sealed
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees