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GB2473365A - A load measuring fastener - Google Patents

A load measuring fastener Download PDF

Info

Publication number
GB2473365A
GB2473365A GB1019638A GB201019638A GB2473365A GB 2473365 A GB2473365 A GB 2473365A GB 1019638 A GB1019638 A GB 1019638A GB 201019638 A GB201019638 A GB 201019638A GB 2473365 A GB2473365 A GB 2473365A
Authority
GB
United Kingdom
Prior art keywords
fastener
bore
axial position
load measuring
extending
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.)
Granted
Application number
GB1019638A
Other versions
GB2473365B (en
GB201019638D0 (en
Inventor
John Andrew Brian Hirst
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.)
Enerfast Ltd
Original Assignee
Enerfast 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 Enerfast Ltd filed Critical Enerfast Ltd
Publication of GB201019638D0 publication Critical patent/GB201019638D0/en
Publication of GB2473365A publication Critical patent/GB2473365A/en
Application granted granted Critical
Publication of GB2473365B publication Critical patent/GB2473365B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
    • F16B31/025—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load with a gauge pin in a longitudinal bore in the body of the bolt
    • 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
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

A load indicating fastener (21) uicludes at one end (22) of its body a threaded portion for receiving a nut (31). The fastener (21) has a bore (22) extending into the fastener from said one end, an annular tube (24) extending into the bore coaxial with the threaded portion and anchored to the fastener at a first axial position (29) within the bore, and a rod (23) extending into the bore inside the amlular tube (24) and anchored to the fastener at a second axial position (28) within the bore. The second axial position (28) is further from said one end of the fastener body than the first axial position (29).
GB1019638A 2009-06-06 2010-06-04 A load measuring fastener Expired - Fee Related GB2473365B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0909760.1A GB0909760D0 (en) 2009-06-06 2009-06-06 Load measuring fastener
PCT/GB2010/050939 WO2010140002A1 (en) 2009-06-06 2010-06-04 A load measuring fastener

Publications (3)

Publication Number Publication Date
GB201019638D0 GB201019638D0 (en) 2011-01-19
GB2473365A true GB2473365A (en) 2011-03-09
GB2473365B GB2473365B (en) 2011-07-20

Family

ID=40937013

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0909760.1A Ceased GB0909760D0 (en) 2009-06-06 2009-06-06 Load measuring fastener
GB1019638A Expired - Fee Related GB2473365B (en) 2009-06-06 2010-06-04 A load measuring fastener

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0909760.1A Ceased GB0909760D0 (en) 2009-06-06 2009-06-06 Load measuring fastener

Country Status (2)

Country Link
GB (2) GB0909760D0 (en)
WO (1) WO2010140002A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201300093D0 (en) 2013-01-04 2013-02-20 Phipps Maria J Load indicating nut/washer
KR102255129B1 (en) * 2014-07-30 2021-05-24 인테그리티 엔지니어링 솔루션스 피티와이 엘티디 Fasteners
CN109154322B (en) * 2016-05-18 2021-04-23 因特格瑞提工程方案有限公司 Load Indicating Fasteners

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943819A (en) * 1974-08-22 1976-03-16 Charron Charles S Tensile member with tension indicating means
US3964299A (en) * 1974-06-20 1976-06-22 Modulus Corporation Strain indicator
US4466477A (en) * 1981-12-21 1984-08-21 Prince Corporation Die casting machine with strain gauge
WO1991008398A1 (en) * 1989-11-27 1991-06-13 Rotabolt Limited Load-indicating fasteners
US5885040A (en) * 1997-06-27 1999-03-23 Mcdonnell Douglas Corporation Tie-down with strap and strap tension indicator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2413797A (en) 1945-04-16 1947-01-07 Gerotor May Corp Fastening device
EP0049537B1 (en) 1980-10-08 1985-06-19 Rotabolt Limited Fastener device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964299A (en) * 1974-06-20 1976-06-22 Modulus Corporation Strain indicator
US3943819A (en) * 1974-08-22 1976-03-16 Charron Charles S Tensile member with tension indicating means
US4466477A (en) * 1981-12-21 1984-08-21 Prince Corporation Die casting machine with strain gauge
WO1991008398A1 (en) * 1989-11-27 1991-06-13 Rotabolt Limited Load-indicating fasteners
US5885040A (en) * 1997-06-27 1999-03-23 Mcdonnell Douglas Corporation Tie-down with strap and strap tension indicator

Also Published As

Publication number Publication date
GB2473365B (en) 2011-07-20
GB0909760D0 (en) 2009-07-22
WO2010140002A1 (en) 2010-12-09
GB201019638D0 (en) 2011-01-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140604