GB487710A - Improvements in or relating to instruments for determining the roughness of surfaces - Google Patents

Improvements in or relating to instruments for determining the roughness of surfaces

Info

Publication number
GB487710A
GB487710A GB874637A GB874637A GB487710A GB 487710 A GB487710 A GB 487710A GB 874637 A GB874637 A GB 874637A GB 874637 A GB874637 A GB 874637A GB 487710 A GB487710 A GB 487710A
Authority
GB
United Kingdom
Prior art keywords
roughness
determining
ligament
carries
tracer
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
GB874637A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB874637A priority Critical patent/GB487710A/en
Publication of GB487710A publication Critical patent/GB487710A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

487,710. Surface gauges. SHAW, H. March 25, 1937, No. 8746. [Class 106 (ii)] Comprises a construction of apparatus for determining the roughness or unevenness of surfaces in which errors due to slides or prints, and to inaccuracies of the setting of the work surface relatively to the tracer path are eliminated. The rider D or D<1> which contacts with the surface A to be gauged or with a guide surface A<1> approximately parallel to it is carried by a tubular member B pivoting by means of a ligament F. Pivoted by a ligament E inside the member B is a lever C, one end of which carries a tracer or stylus while the other carries a mirror L reflecting a pencil of light HJK on to a photographic plate or film M.
GB874637A 1937-03-25 1937-03-25 Improvements in or relating to instruments for determining the roughness of surfaces Expired GB487710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB874637A GB487710A (en) 1937-03-25 1937-03-25 Improvements in or relating to instruments for determining the roughness of surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB874637A GB487710A (en) 1937-03-25 1937-03-25 Improvements in or relating to instruments for determining the roughness of surfaces

Publications (1)

Publication Number Publication Date
GB487710A true GB487710A (en) 1938-06-24

Family

ID=9858478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB874637A Expired GB487710A (en) 1937-03-25 1937-03-25 Improvements in or relating to instruments for determining the roughness of surfaces

Country Status (1)

Country Link
GB (1) GB487710A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483668A (en) * 1943-03-24 1949-10-04 Taylor Taylor & Hobson Ltd Apparatus for measuring or indicating roughness or undulations of a surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483668A (en) * 1943-03-24 1949-10-04 Taylor Taylor & Hobson Ltd Apparatus for measuring or indicating roughness or undulations of a surface

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