GB989944A - Apparatus for testing the hardness of solid bodies - Google Patents

Apparatus for testing the hardness of solid bodies

Info

Publication number
GB989944A
GB989944A GB1192964A GB1192964A GB989944A GB 989944 A GB989944 A GB 989944A GB 1192964 A GB1192964 A GB 1192964A GB 1192964 A GB1192964 A GB 1192964A GB 989944 A GB989944 A GB 989944A
Authority
GB
United Kingdom
Prior art keywords
recording
hardness
strip
recoil
testing
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
GB1192964A
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of GB989944A publication Critical patent/GB989944A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/307—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/40—Investigating hardness or rebound hardness
    • G01N3/52—Investigating hardness or rebound hardness by measuring extent of rebound of a striking body

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

989,944. Testing hardness; recording-apparatus. BERGWERKSVERBAND G.m.b.H. March 20, 1964 [March 25, 1963], No. 11929/64. Headings G1J and G1S. A hardness tester with recording means comprises an impact body 3 which under the action of a spring 5 strikes a bolt 2 and recoils, the body 3 engaging member 8 during recoil so that the recoil distance is shown by a maximum indicator mechanism 7 having a stylus 10 which records a mark, whose length is proportional to the recoil distance on a recording strip 18. The recording strip is preferably transparent with a wax layer applied to one side in which the stylus 10 forms an impression. The strip 18 is wound between a pair of spools 16, 17 and may be advanced a small predetermined distance by means of a pawl 22 which shifts a ring gear 21 forward by one tooth each time the impact body is tensioned for use.
GB1192964A 1963-03-25 1964-03-20 Apparatus for testing the hardness of solid bodies Expired GB989944A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1963B0052617 DE1873799U (en) 1963-03-25 1963-03-25 REGISTRATION DEVICE FOR HAEMMER FOR TESTING THE STRENGTH PROPERTIES OF SOLIDS.

Publications (1)

Publication Number Publication Date
GB989944A true GB989944A (en) 1965-04-22

Family

ID=33138899

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1192964A Expired GB989944A (en) 1963-03-25 1964-03-20 Apparatus for testing the hardness of solid bodies

Country Status (4)

Country Link
BE (1) BE645466A (en)
CH (1) CH401534A (en)
DE (1) DE1873799U (en)
GB (1) GB989944A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009036578A1 (en) * 2007-09-20 2009-03-26 Bransdestini Marco Method and apparatus for the non-destructive measurement of the compressive strength of a solid
WO2011046687A1 (en) * 2009-10-16 2011-04-21 The Boeing Company Damage impactor
KR20200106757A (en) * 2019-03-05 2020-09-15 대구대학교 산학협력단 Non-destructive strength field measurement device and method to utilize sound signal energy

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19743119C1 (en) * 1997-09-30 1998-11-12 Deutsche Telekom Ag Wood power line mast testing method
CN107817183A (en) * 2017-08-10 2018-03-20 上海多克实业有限公司 A kind of single activation instrument

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009036578A1 (en) * 2007-09-20 2009-03-26 Bransdestini Marco Method and apparatus for the non-destructive measurement of the compressive strength of a solid
US8261620B2 (en) 2007-09-20 2012-09-11 Marco Brandestini Method and apparatus for the non-destructive measurement of the compressive strength of a solid
WO2011046687A1 (en) * 2009-10-16 2011-04-21 The Boeing Company Damage impactor
US8210024B2 (en) 2009-10-16 2012-07-03 The Boeing Company Damage impactor
KR20200106757A (en) * 2019-03-05 2020-09-15 대구대학교 산학협력단 Non-destructive strength field measurement device and method to utilize sound signal energy

Also Published As

Publication number Publication date
DE1873799U (en) 1963-06-12
BE645466A (en) 1964-07-16
CH401534A (en) 1965-10-31

Similar Documents

Publication Publication Date Title
CH556743A (en) ACTUATING DEVICE FOR A PRINTER HEAD OF A DOT MATRIX PRINTER.
GB989944A (en) Apparatus for testing the hardness of solid bodies
CH470974A (en) Method for printing out a recorded text rearranged with regard to the line length
FR2302529A1 (en) DEVICE FOR MEASURING SHOCK PULSES
CH516851A (en) Actuating device for a print hammer
BE616530A (en) Device for measuring distances and in particular altitudes by echo.
CH539894A (en) Print head arrangement for dot matrix printers
DE662098C (en) Measurement support for measuring the cutting forces during machining
US1664407A (en) Automatic uplse, respiration, and temperature recorder
GB805374A (en) An improved indicating or recording device
CH371749A (en) Device for locking a ratchet wheel in an electrically driven watch
ES269796A1 (en) Indicator device for a recording device intended for the measurement of the time used by ecos (Machine-translation by Google Translate, not legally binding)
GB1155574A (en) Magnetic-Core Matrix Store divided into Storage Regions
GB1154954A (en) A Printing Device
DE541791C (en) Record speaking machine with approach direction
AT308446B (en) Device for striking a piezoelectric body
Mowrer A cumulative graphic work-recorder.
GB159068A (en) Improvements connected with ticket printing mechanism of weighing apparatus
JPS527084A (en) Shearing accuracy checking device for strip shearing machine
GB1056759A (en) Coded recording system
FR1139592A (en) Device actuated by electric pulses for printing conventional signs (numbers, letters and the like), in particular for sound recording machines
GB271020A (en) Improvements in instruments for measuring acceleration and deceleration
ES265645A1 (en) Electrical pulse counter apparatus (Machine-translation by Google Translate, not legally binding)
Cent HIGH SCHOOL RECORDS CHECKED FOR BEGINNING OFFICE WORKERS
GB923663A (en) Improvements in ratchet wheel stopping apparatus in photographic composing machines