SE8206582D0 - INSTRUCTION FOR MEASURING THE SCRAPING TENSION - Google Patents

INSTRUCTION FOR MEASURING THE SCRAPING TENSION

Info

Publication number
SE8206582D0
SE8206582D0 SE8206582A SE8206582A SE8206582D0 SE 8206582 D0 SE8206582 D0 SE 8206582D0 SE 8206582 A SE8206582 A SE 8206582A SE 8206582 A SE8206582 A SE 8206582A SE 8206582 D0 SE8206582 D0 SE 8206582D0
Authority
SE
Sweden
Prior art keywords
holder
screw
dial gauge
screw head
magnetic holder
Prior art date
Application number
SE8206582A
Other languages
Swedish (sv)
Other versions
SE8206582L (en
Inventor
J Rodig
Original Assignee
Ckd Praha
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 Ckd Praha filed Critical Ckd Praha
Publication of SE8206582D0 publication Critical patent/SE8206582D0/en
Publication of SE8206582L publication Critical patent/SE8206582L/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

The invention is intended to enable precise measurements with the aid of a dial gauge of the strain of a screw when it is tightened. For this purpose, a feeler pin (3) is arranged in a precise bore (2) on the screw axis and pressed with its lower end in the free end of the screw shank. The surface of the screw head (4) is ground flat with the upper end face of the feeler pin (3), which projects with play through the screw head (4). The screw head has a centre (5) for a holder (6) with an attached dial gauge (7). The magnetic holder (9) of a permanent magnet (10) is rotatably mounted in the holder (6), which is sub-divided by a vertical joint (11) into two magnetically non-conductive halves which are soldered together. A rotary ring (12) which is connected to the magnetic holder (9) by screws (13) is fitted on to the holder (6). The magnetic holder (6) is sealed from above downwards by a cover (15) into which the dial gauge (7) is screwed. <IMAGE>
SE8206582A 1981-11-24 1982-11-18 DEVICE FOR META SCREW TENSION SE8206582L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS818626A CS228665B1 (en) 1981-11-24 1981-11-24 Screw elongationmetering apparatus

Publications (2)

Publication Number Publication Date
SE8206582D0 true SE8206582D0 (en) 1982-11-18
SE8206582L SE8206582L (en) 1983-05-25

Family

ID=5437087

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8206582A SE8206582L (en) 1981-11-24 1982-11-18 DEVICE FOR META SCREW TENSION

Country Status (7)

Country Link
CS (1) CS228665B1 (en)
DE (1) DE3243306A1 (en)
DK (1) DK448082A (en)
FI (1) FI823659L (en)
FR (1) FR2517051A1 (en)
NO (1) NO823923L (en)
SE (1) SE8206582L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102954752A (en) * 2012-10-26 2013-03-06 西安航空动力控制科技有限公司 Special device for measuring deformation of warming sheet
CN103322893A (en) * 2013-07-03 2013-09-25 国家电网公司 Generator connecting bolt elongation value measuring method, measuring device thereof and use method
CN103353292B (en) * 2013-07-29 2016-02-24 北京理工大学 Overall bolt stretching machine amount of tension self-operated measuring unit
DE102014101241A1 (en) 2014-01-31 2015-08-06 Realtest GmbH Device for determining bending stresses of locking elements and method for this purpose

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2287286A (en) * 1938-08-13 1942-06-23 Karl Otto Goettsch Magnetic chuck
US2360928A (en) * 1941-02-07 1944-10-24 O S Walker Co Inc Permanent magnet chuck
US2879686A (en) * 1952-10-31 1959-03-31 Ohio Brass Co Anchor bolt having test rod to indicate tension changes
DE1698627B2 (en) * 1968-02-09 1975-11-13 Maschinenfabrik Augsburg-Nuernberg Ag, Zweigniederlassung Muenchen, 8000 Muenchen Device for displaying the preload of expansion screws
US3943819A (en) * 1974-08-22 1976-03-16 Charron Charles S Tensile member with tension indicating means

Also Published As

Publication number Publication date
FR2517051A1 (en) 1983-05-27
DK448082A (en) 1983-05-25
FI823659A0 (en) 1982-10-26
CS228665B1 (en) 1984-05-14
FI823659L (en) 1983-05-25
SE8206582L (en) 1983-05-25
NO823923L (en) 1983-05-25
DE3243306A1 (en) 1983-06-09

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