GB195558A - - Google Patents

Info

Publication number
GB195558A
GB195558A GB195558DA GB195558A GB 195558 A GB195558 A GB 195558A GB 195558D A GB195558D A GB 195558DA GB 195558 A GB195558 A GB 195558A
Authority
GB
United Kingdom
Prior art keywords
bar
protractor
pivotally mounted
straightedge
spirit level
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.)
Active
Application number
Publication of GB195558A publication Critical patent/GB195558A/en
Active 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
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
    • G01B5/205—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures of turbine blades or propellers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

195,558. Sleight, J. W. June 20, 1922. Screw propellers.-A pitch-measuring instrument comprises a straightedge bar to which is adjustably secured a protractor and a second straightedge bar which is pivoted to the protractor and carries a pointer adapted to move over the protractor. A pivotally mounted spirit level is attached to one bar, and the other bar has adjustable feeler points. A bar a has secured thereto a protractor c, notches k being provided so that the relative positions can be changed. A pivotally mounted spirit level g, is also carried by this bar. A second bar b is pivotally mounted on the protractor, and has a pointer e with a clamping device i engaging a slot j for fixing readings. This bar also has adjustable feelers m.
GB195558D Active GB195558A (en)

Publications (1)

Publication Number Publication Date
GB195558A true GB195558A (en)

Family

ID=1734827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB195558D Active GB195558A (en)

Country Status (1)

Country Link
GB (1) GB195558A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737722A (en) * 1956-03-13 Propeller blade angle measuring device
US4067116A (en) * 1973-12-26 1978-01-10 Caterpillar Tractor Co. Geometric pitch determining device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737722A (en) * 1956-03-13 Propeller blade angle measuring device
US4067116A (en) * 1973-12-26 1978-01-10 Caterpillar Tractor Co. Geometric pitch determining device

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