GB595191A - Improvements in apparatus for testing the hardness of materials - Google Patents

Improvements in apparatus for testing the hardness of materials

Info

Publication number
GB595191A
GB595191A GB1640144A GB1640144A GB595191A GB 595191 A GB595191 A GB 595191A GB 1640144 A GB1640144 A GB 1640144A GB 1640144 A GB1640144 A GB 1640144A GB 595191 A GB595191 A GB 595191A
Authority
GB
United Kingdom
Prior art keywords
plunger
weight
testing
strike
collar
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
GB1640144A
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.)
BERNARD LEE NEWBOULD
JOSEPH FENWICK BRIDGE
Original Assignee
BERNARD LEE NEWBOULD
JOSEPH FENWICK BRIDGE
Filing date
Publication date
Application filed by BERNARD LEE NEWBOULD, JOSEPH FENWICK BRIDGE filed Critical BERNARD LEE NEWBOULD
Publication of GB595191A publication Critical patent/GB595191A/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

595,191. Testing physical qualities of materials. NEWBOULD, B. L., and BRIDGE, J. F. Aug. 29, 1944, No. 16401. [Class 106 (ii)] Apparatus for testing hardness of the kind in which a plunger is driven into the test material by means of a falling weight, sliding on the plunger and arranged to strike a stop associated with the plunger, means being provided to indicate the penetration of the plunger, is characterised by the provision of a hand- or pedal-operated trip device for holding and releasing the weight. The plunger 1 is guided by bearings carried by a vertical post 5 supported by a base-plate 6 and handle 16. A cylindrical weight 8, which fits loosely round the plunger, may be lifted and released, by means of a eam 10 provided with a crank handle, to strike a vertical blow upon a collar 9 secured to the plunger. The top of the plunger is graduated so that the depth of penetration is indicated against an upper bearing 2 and a pin 15 co-operates with a second bearing 3 to prevent the weight from falling too far to be lifted by the cam. The plunger may have an abrasion-resistant point and may comprise a solid rod as shown or a tube into the ends of which are fitted solid rods. In the latter case, the shoulder at the junction of the upper solid rod with the tube serves as the collar 9.
GB1640144A 1944-08-29 Improvements in apparatus for testing the hardness of materials Expired GB595191A (en)

Publications (1)

Publication Number Publication Date
GB595191A true GB595191A (en) 1947-11-28

Family

ID=1732285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1640144A Expired GB595191A (en) 1944-08-29 Improvements in apparatus for testing the hardness of materials

Country Status (1)

Country Link
GB (1) GB595191A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214966A (en) * 1961-09-12 1965-11-02 John Gibson Semmes Instruments for indicating the "going" of racecourses and the like
WO1991005991A1 (en) * 1989-10-20 1991-05-02 Combustion Engineering, Inc. Impact calibration tool
GB2249181A (en) * 1990-08-09 1992-04-29 Bsp Int Foundation System for detecting degree of compaction of soil
US5313825A (en) * 1992-05-08 1994-05-24 The United States Of Americas As Represented By The Secretary Of The Army Dual mass dynamic cone penetrometer
WO2010007454A2 (en) * 2008-07-17 2010-01-21 Subert Istvan Method for in-situ determining the compactness of grainy material layers and device for performing the process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214966A (en) * 1961-09-12 1965-11-02 John Gibson Semmes Instruments for indicating the "going" of racecourses and the like
WO1991005991A1 (en) * 1989-10-20 1991-05-02 Combustion Engineering, Inc. Impact calibration tool
GB2249181A (en) * 1990-08-09 1992-04-29 Bsp Int Foundation System for detecting degree of compaction of soil
GB2249181B (en) * 1990-08-09 1994-01-05 Bsp Int Foundation System for detecting the degree of compaction or resistance to penetration of soil.
US5313825A (en) * 1992-05-08 1994-05-24 The United States Of Americas As Represented By The Secretary Of The Army Dual mass dynamic cone penetrometer
WO2010007454A2 (en) * 2008-07-17 2010-01-21 Subert Istvan Method for in-situ determining the compactness of grainy material layers and device for performing the process
WO2010007454A3 (en) * 2008-07-17 2011-01-20 Subert Istvan Method for in-situ determining the compactness of grainy material layers and device for performing the process

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