GB1442292A - Fastening device - Google Patents

Fastening device

Info

Publication number
GB1442292A
GB1442292A GB653475A GB653475A GB1442292A GB 1442292 A GB1442292 A GB 1442292A GB 653475 A GB653475 A GB 653475A GB 653475 A GB653475 A GB 653475A GB 1442292 A GB1442292 A GB 1442292A
Authority
GB
United Kingdom
Prior art keywords
fastener
colour
rod
washer
head
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
GB653475A
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
Publication of GB1442292A publication Critical patent/GB1442292A/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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • 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
    • F16B31/028—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 load-indicating washer or washer assembly
    • 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
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
    • G01L5/243—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed using washers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Dowels (AREA)
  • Rehabilitation Tools (AREA)
  • Supports For Plants (AREA)
  • Connection Of Plates (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

1442292 Applying predetermined tensions to fasteners A FISCHER 17 Feb 1975 [19 Feb 1974] 6534/75 Heading F2H [Also in Division G1] An element 9 to indicate the tension in a fastener 1 comprises a washer placed under the head 7 of the fastener and made of a material which changes colour in dependence on the compressive stress to which it is subjected. The washer is made of P.V.C. including a plasticizer, the colour change being due to a change in the structure of the plasticizer under compression. The colour change is a brightening of the original colour of the plastics, the amount of brightening indicating the loading, the limit being when the material is completely white. As shown, the fastener 1 comprises a longitudinally split expansible sleeve 2 on a bolt 4 having an expander head 3, the bolt being screwed into a threaded bore 6 of a rod 5. The head 7 may be integral with the rod 5, or may be a nut screw-threaded on to the rod. The washer 9 is arranged to reach its white colour at a load corresponding to the greatest force which can be applied safely to masonry 11 in which the fastener is anchored.
GB653475A 1974-02-19 1975-02-17 Fastening device Expired GB1442292A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2407844A DE2407844C2 (en) 1974-02-19 1974-02-19 Plastic washer for fastening elements

Publications (1)

Publication Number Publication Date
GB1442292A true GB1442292A (en) 1976-07-14

Family

ID=5907797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB653475A Expired GB1442292A (en) 1974-02-19 1975-02-17 Fastening device

Country Status (18)

Country Link
JP (2) JPS50113659A (en)
AT (1) AT337959B (en)
BE (1) BE818250A (en)
BR (1) BR7500956A (en)
CH (1) CH569964A5 (en)
CS (1) CS198152B2 (en)
DD (1) DD114682A5 (en)
DE (1) DE2407844C2 (en)
ES (1) ES207623Y (en)
FR (1) FR2261442B1 (en)
GB (1) GB1442292A (en)
HU (1) HU171579B (en)
IT (1) IT1031492B (en)
NL (1) NL7410287A (en)
PL (1) PL92150B1 (en)
SE (1) SE405388B (en)
SU (1) SU522819A3 (en)
ZA (1) ZA747489B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346918A1 (en) * 1983-12-24 1985-07-04 Monika 4409 Dülmen Sawatzki Knock-in dowel
US4656806A (en) * 1984-12-14 1987-04-14 Hilti Aktiengesellschaft Expansion anchor assembly
US4854793A (en) * 1984-12-05 1989-08-08 Societe De Prospection Et D'inventions Techniques Cone expansion wall plug
CN109612626A (en) * 2019-01-03 2019-04-12 武汉科技大学 A kind of Axial stress in bolt sensor
EP3978768A1 (en) 2020-09-30 2022-04-06 Hilti Aktiengesellschaft Expansion anchor with cap nut having yielding stopper

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2939096A1 (en) * 1979-09-27 1981-04-16 Klöckner-Humboldt-Deutz AG, 5000 Köln Measuring and monitoring screw connection clamping force - using deforming pressure measurement washer with peripheral ceramic ring
DE3112638A1 (en) * 1981-03-30 1982-10-14 TOX-Dübel-Werk Richard W. Heckhausen KG, 7762 Bodman-Ludwigshafen "HEAVY DUTY ANCHOR"
DE3417173A1 (en) * 1984-05-09 1985-11-14 Hilti Ag, Schaan PRESETABLE DOWEL
DE3813738A1 (en) * 1988-04-23 1989-11-09 Upat Max Langensiepen Kg SPREADING ANCHOR
DE4421959A1 (en) * 1994-06-23 1996-01-04 Fischer Artur Werke Gmbh Preload control element for screw anchors
DE102009043267A1 (en) 2009-09-29 2011-04-21 Neumayer Tekfor Holding Gmbh Screwing unit for screwing wheel of vehicle i.e. lorry, has sensor component arranged relative to nut and arranged in front side of nut, where variable characteristics depends on pre-stress force that is produced by nut
CN104089729B (en) * 2014-07-23 2016-04-06 上海市建筑科学研究院 A kind of bolt strained monitoring sensor of fiber Bragg grating type anatomical connectivity and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495907A (en) * 1966-02-01 1970-02-17 Donald E Rogers Indicating means

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346918A1 (en) * 1983-12-24 1985-07-04 Monika 4409 Dülmen Sawatzki Knock-in dowel
US4854793A (en) * 1984-12-05 1989-08-08 Societe De Prospection Et D'inventions Techniques Cone expansion wall plug
US4656806A (en) * 1984-12-14 1987-04-14 Hilti Aktiengesellschaft Expansion anchor assembly
CN109612626A (en) * 2019-01-03 2019-04-12 武汉科技大学 A kind of Axial stress in bolt sensor
EP3978768A1 (en) 2020-09-30 2022-04-06 Hilti Aktiengesellschaft Expansion anchor with cap nut having yielding stopper
WO2022069238A1 (en) 2020-09-30 2022-04-07 Hilti Aktiengesellschaft Expansion anchor with cap nut having yielding stopper

Also Published As

Publication number Publication date
BE818250A (en) 1974-11-18
BR7500956A (en) 1976-11-23
PL92150B1 (en) 1977-03-31
SE405388B (en) 1978-12-04
FR2261442A1 (en) 1975-09-12
DE2407844B1 (en) 1975-03-13
ES207623U (en) 1976-03-16
DE2407844C2 (en) 1975-11-06
SE7501599L (en) 1975-08-20
CH569964A5 (en) 1975-11-28
IT1031492B (en) 1979-04-30
JPS50113659A (en) 1975-09-05
ZA747489B (en) 1975-12-31
SU522819A3 (en) 1976-07-25
FR2261442B1 (en) 1979-05-25
CS198152B2 (en) 1980-05-30
DD114682A5 (en) 1975-08-12
JPS5373356U (en) 1978-06-19
AT337959B (en) 1977-07-25
ATA1037474A (en) 1976-11-15
HU171579B (en) 1978-02-28
ES207623Y (en) 1976-07-16
NL7410287A (en) 1975-08-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee