GB465804A - Improvements in or relating to apparatus for measuring hardness or strengths of materials - Google Patents

Improvements in or relating to apparatus for measuring hardness or strengths of materials

Info

Publication number
GB465804A
GB465804A GB3144735A GB3144735A GB465804A GB 465804 A GB465804 A GB 465804A GB 3144735 A GB3144735 A GB 3144735A GB 3144735 A GB3144735 A GB 3144735A GB 465804 A GB465804 A GB 465804A
Authority
GB
United Kingdom
Prior art keywords
spring
materials
plunger
strengths
relating
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
GB3144735A
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.)
JESSE FRANK WILLIAMS
Original Assignee
JESSE FRANK WILLIAMS
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 JESSE FRANK WILLIAMS filed Critical JESSE FRANK WILLIAMS
Priority to GB3144735A priority Critical patent/GB465804A/en
Publication of GB465804A publication Critical patent/GB465804A/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
    • G01N3/40—Investigating hardness or rebound hardness
    • G01N3/48—Investigating hardness or rebound hardness by performing impressions under impulsive load by indentors, e.g. falling ball

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)

Abstract

465,804. Testing hardness of materials. WILLIAMS, J. F. Nov. 13, 1935, No. 31447. [Class 106 (ii)] Portable apparatus for testing hardness of materials comprises a spring-pressed plunger 11 having at one end a striking element 12 and adapted to be released by the action of pulling a trigger 27, the impression made by the element 12 in the material under test being measured with the aid of a microscope carried together with a lamp in the casing 23 forming the handle of the apparatus. The compression of the spring 16 is adjusted by moving a plunger 17 by a screw rod 21, the plunger 17 carrying an indicator moving over a scale. A mathematical formula is given for determining the relation between the compressive strength of concrete and the diameter of the impression therein effected by the device. The spring 16 may be replaced by a compressed-air device.
GB3144735A 1935-11-13 1935-11-13 Improvements in or relating to apparatus for measuring hardness or strengths of materials Expired GB465804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3144735A GB465804A (en) 1935-11-13 1935-11-13 Improvements in or relating to apparatus for measuring hardness or strengths of materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3144735A GB465804A (en) 1935-11-13 1935-11-13 Improvements in or relating to apparatus for measuring hardness or strengths of materials

Publications (1)

Publication Number Publication Date
GB465804A true GB465804A (en) 1937-05-13

Family

ID=10323212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3144735A Expired GB465804A (en) 1935-11-13 1935-11-13 Improvements in or relating to apparatus for measuring hardness or strengths of materials

Country Status (1)

Country Link
GB (1) GB465804A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610504A (en) * 1948-04-16 1952-09-16 Tide Water Associated Oil Comp Hydraulic tester
CN117074220A (en) * 2023-10-17 2023-11-17 上海贝恒人居建设集团南通有限公司 Intensity testing device for large-volume concrete prefabricated part

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610504A (en) * 1948-04-16 1952-09-16 Tide Water Associated Oil Comp Hydraulic tester
CN117074220A (en) * 2023-10-17 2023-11-17 上海贝恒人居建设集团南通有限公司 Intensity testing device for large-volume concrete prefabricated part
CN117074220B (en) * 2023-10-17 2023-12-26 上海贝恒人居建设集团南通有限公司 Intensity testing device for large-volume concrete prefabricated part

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