GB812514A - Apparatus for determining the surface hardness inside cylindrical hollow bodies - Google Patents

Apparatus for determining the surface hardness inside cylindrical hollow bodies

Info

Publication number
GB812514A
GB812514A GB13710/57A GB1371057A GB812514A GB 812514 A GB812514 A GB 812514A GB 13710/57 A GB13710/57 A GB 13710/57A GB 1371057 A GB1371057 A GB 1371057A GB 812514 A GB812514 A GB 812514A
Authority
GB
United Kingdom
Prior art keywords
cylinder
plunger
acts
penetrator
bellows
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
GB13710/57A
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.)
ALBERT RENE ARTHUIS
Original Assignee
ALBERT RENE ARTHUIS
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 ALBERT RENE ARTHUIS filed Critical ALBERT RENE ARTHUIS
Publication of GB812514A publication Critical patent/GB812514A/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
    • G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid

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)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

812,514. Testing hardness of materials. ARTHUIS, A. R. April 30, 1957 [May 11, 1956], No. 13710/57. Class 106 (2). Apparatus for determining the surface hardness inside hollow cylindrical bodies comprises two instruments 1, 14 interconnected by flexible tubing, namely a penetrator carrier 1 which can be moved independently and an instrument for generating the hydraulic pressure required to produce the impression of the penetrator 3, and for hydropneumatically indicating the depth of penetration. The penetrator carrier, Figs. 1 and 2, consists of a cylinder 1 supported by a cradle 10, which may be replaced by others of differing sizes, the cylinder 1 having a piston 2 and indentor 3 sliding in a radial bore. The piston 2 acts on one end of a lever 8, the opposite end of which acts on a metallic bellows 6. The pressure generator and indicator is shown in Fig. 4. A plunger 15, actuated by a handle 17 acts on oil in a duct 18, communicating with a bore 5 in the cylinder 1 by means of a flexible tube 12. This duct 18 also communicates with the interior of a cylinder 20, in which the pressure of the oil acts on a plunger 19, which, together with a weight 21, forms the minor load for a Rockwell test. Further inward movement of the plunger 15 causes the plunger 19 to pick up a second weight 22 to form the total load for the test. A cylinder 23 contains liquid and the upper surface is in communication with the interior of the bellows 6 by means of a flexible tube 13, indication of the degree of compression of the bellows 6 being given by the level of liquid in a capillary tube 30. The cradle may be replaced by an arrangement of mechanical or hydraulic jacks.
GB13710/57A 1956-05-11 1957-04-30 Apparatus for determining the surface hardness inside cylindrical hollow bodies Expired GB812514A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR812514X 1956-05-11

Publications (1)

Publication Number Publication Date
GB812514A true GB812514A (en) 1959-04-29

Family

ID=9265656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13710/57A Expired GB812514A (en) 1956-05-11 1957-04-30 Apparatus for determining the surface hardness inside cylindrical hollow bodies

Country Status (1)

Country Link
GB (1) GB812514A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007049111A1 (en) * 2005-10-25 2007-05-03 S.M. Scienzia Machinale Srl Apparatus for detecting mechanical features of materials
CN111855456A (en) * 2020-07-02 2020-10-30 湖北德普电气股份有限公司 Hydrogen fuel cell engine test equipment with water-cooling heat dissipation function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007049111A1 (en) * 2005-10-25 2007-05-03 S.M. Scienzia Machinale Srl Apparatus for detecting mechanical features of materials
US8312764B2 (en) 2005-10-25 2012-11-20 S.M. Scienzia Machinale S.R.L. Apparatus for detecting mechanical features of materials
CN111855456A (en) * 2020-07-02 2020-10-30 湖北德普电气股份有限公司 Hydrogen fuel cell engine test equipment with water-cooling heat dissipation function

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