CH593487A5 - Manually operated materials hardness tester - has direct reading dial on top of concentric cylinder plunger mechanism - Google Patents

Manually operated materials hardness tester - has direct reading dial on top of concentric cylinder plunger mechanism

Info

Publication number
CH593487A5
CH593487A5 CH459675A CH459675A CH593487A5 CH 593487 A5 CH593487 A5 CH 593487A5 CH 459675 A CH459675 A CH 459675A CH 459675 A CH459675 A CH 459675A CH 593487 A5 CH593487 A5 CH 593487A5
Authority
CH
Switzerland
Prior art keywords
hardness tester
manually operated
direct reading
plunger mechanism
concentric cylinder
Prior art date
Application number
CH459675A
Original Assignee
Ernst Alfred
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 Ernst Alfred filed Critical Ernst Alfred
Priority to CH459675A priority Critical patent/CH593487A5/en
Priority to IT2049176A priority patent/IT1055988B/en
Priority to GB876976A priority patent/GB1522532A/en
Priority to US05/664,471 priority patent/US4023401A/en
Priority to DE19762609627 priority patent/DE2609627C3/en
Priority to FR7606798A priority patent/FR2304075A1/en
Priority to JP2703176A priority patent/JPS51117087A/en
Publication of CH593487A5 publication Critical patent/CH593487A5/en

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0098—Tests specified by its name, e.g. Charpy, Brinnel, Mullen

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)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The hardness tester comprises an outer cylindrical housing (87) with diametrically-opposed handles for operating the device (90). The housing has an inner ring (97) through which passes a central cylinder (88). This cylinder carries a projecting ring (95) with bevelled rim (96) which supports the corresponding face of the other ring (97) through a ball-bearing race (99). The upper part carries an indicating dial (93) and pointer operated by a hydraulic mechanism energised during operation. The tester is first correctly centred over the work-piece surface and downward pressure on the handles causes a pointed probe to be forced vertically down through a double coil spring coupling mechanism within the central cylinder (88). This actuates the metering device and the hardness value can be read off directly from the top of the instrument.
CH459675A 1975-03-12 1975-04-10 Manually operated materials hardness tester - has direct reading dial on top of concentric cylinder plunger mechanism CH593487A5 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CH459675A CH593487A5 (en) 1975-04-10 1975-04-10 Manually operated materials hardness tester - has direct reading dial on top of concentric cylinder plunger mechanism
IT2049176A IT1055988B (en) 1975-04-10 1976-02-24 HAND OPERABLE HARDNESS METER
GB876976A GB1522532A (en) 1975-03-12 1976-03-04 Hand-operable hardness tester
US05/664,471 US4023401A (en) 1975-03-12 1976-03-08 Hand-operable durometer
DE19762609627 DE2609627C3 (en) 1975-03-12 1976-03-09 Manually operated hardness tester
FR7606798A FR2304075A1 (en) 1975-03-12 1976-03-10 HAND-ACTIONABLE HARDNESS MEASUREMENT
JP2703176A JPS51117087A (en) 1975-03-12 1976-03-12 Manual durometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH459675A CH593487A5 (en) 1975-04-10 1975-04-10 Manually operated materials hardness tester - has direct reading dial on top of concentric cylinder plunger mechanism

Publications (1)

Publication Number Publication Date
CH593487A5 true CH593487A5 (en) 1977-12-15

Family

ID=4279034

Family Applications (1)

Application Number Title Priority Date Filing Date
CH459675A CH593487A5 (en) 1975-03-12 1975-04-10 Manually operated materials hardness tester - has direct reading dial on top of concentric cylinder plunger mechanism

Country Status (2)

Country Link
CH (1) CH593487A5 (en)
IT (1) IT1055988B (en)

Also Published As

Publication number Publication date
IT1055988B (en) 1982-01-11

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Legal Events

Date Code Title Description
PL Patent ceased