USB498820I5 - - Google Patents

Info

Publication number
USB498820I5
USB498820I5 US49882074A USB498820I5 US B498820 I5 USB498820 I5 US B498820I5 US 49882074 A US49882074 A US 49882074A US B498820 I5 USB498820 I5 US B498820I5
Authority
US
United States
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.)
Pending
Application number
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 filed Critical
Priority to US05/498,820 priority Critical patent/US3996670A/en
Priority to FR7525475A priority patent/FR2282617A1/en
Priority to JP50100042A priority patent/JPS5156339A/ja
Priority to GB34417/75A priority patent/GB1515713A/en
Publication of USB498820I5 publication Critical patent/USB498820I5/en
Application granted granted Critical
Publication of US3996670A publication Critical patent/US3996670A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B5/242—Sine bars; Sine plates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
US05/498,820 1974-08-19 1974-08-19 Protractor with digital readout Expired - Lifetime US3996670A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US05/498,820 US3996670A (en) 1974-08-19 1974-08-19 Protractor with digital readout
FR7525475A FR2282617A1 (en) 1974-08-19 1975-08-18 DIGITAL READING RAPPORTEUR
JP50100042A JPS5156339A (en) 1974-08-19 1975-08-18
GB34417/75A GB1515713A (en) 1974-08-19 1975-08-19 Protractor with digital readout

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/498,820 US3996670A (en) 1974-08-19 1974-08-19 Protractor with digital readout

Publications (2)

Publication Number Publication Date
USB498820I5 true USB498820I5 (en) 1976-03-09
US3996670A US3996670A (en) 1976-12-14

Family

ID=23982638

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/498,820 Expired - Lifetime US3996670A (en) 1974-08-19 1974-08-19 Protractor with digital readout

Country Status (4)

Country Link
US (1) US3996670A (en)
JP (1) JPS5156339A (en)
FR (1) FR2282617A1 (en)
GB (1) GB1515713A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989003503A1 (en) * 1987-10-13 1989-04-20 Hans Rudolf Weber Angle-measuring gauge with electronic sensor and digital display
CN112896549A (en) * 2021-01-21 2021-06-04 中国民用航空飞行学院 General fixed wing aircraft rudder angle detection device

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0068638B1 (en) * 1981-06-15 1989-08-23 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Protractors
DE3269599D1 (en) 1981-06-29 1986-04-10 Dulux Australia Ltd Stable aqueous film-forming dispersions
US4476567A (en) * 1981-12-11 1984-10-09 The Boeing Company Electronic protractor
US4442606A (en) * 1982-04-12 1984-04-17 Graham Douglas A Digital goniometer
US4754276A (en) * 1985-12-30 1988-06-28 Schaevitz Sensing Systems, Inc. System to display sawblade angle and height
GB2189616A (en) * 1986-02-10 1987-10-28 Colin Leonard Talbot Engineer's protractor
AU1501001A (en) * 2001-01-16 2002-07-18 Montenegro, Maria An apparatus for measuring angles
US7472489B2 (en) * 2006-03-10 2009-01-06 Curtis Douglas Frank Rowing device, digital pitch meter and other devices
CN101221034B (en) * 2007-01-08 2010-06-09 鸿富锦精密工业（深圳）有限公司 Detecting instrument
US7637026B2 (en) * 2008-03-10 2009-12-29 Ta-Sen Tu Main rotor blade calibration gauge for remote-controlled toy helicopter
US8043044B2 (en) * 2008-09-11 2011-10-25 General Electric Company Load pin for compressor square base stator and method of use
US7685731B1 (en) * 2008-09-12 2010-03-30 General Electric Company Blade verification plates and method of use
US20100068050A1 (en) * 2008-09-12 2010-03-18 General Electric Company Gas turbine vane attachment
US7877891B2 (en) * 2008-09-12 2011-02-01 General Electric Company Rotor clocking bar and method of use
US8033785B2 (en) * 2008-09-12 2011-10-11 General Electric Company Features to properly orient inlet guide vanes
FR2940437B1 (en) * 2008-12-22 2013-02-15 Airbus France TOOL, TOOL ASSEMBLY, AND METHOD OF ADJUSTING THE FLANGE OF BLADES OF A MODEL PROPELLER
CN104669153B (en) * 2013-12-02 2017-02-08 昌河飞机工业（集团）有限责任公司 Blade torsional angle measurement fixture and method
US10288399B2 (en) * 2014-07-01 2019-05-14 Sikorsky Aircraft Corporation Blade geometry characterization tool
CN104390569A (en) * 2014-12-08 2015-03-04 内蒙古包钢钢联股份有限公司 Device and method for determining cooling tower fan blade mounting angles rapidly
CN106092030A (en) * 2016-08-04 2016-11-09 无锡尊宝电动车有限公司 A kind of qualified detection device of electric fan
CN109211068A (en) * 2018-09-12 2019-01-15 中国航发湖南动力机械研究所 Angle measurement unit
CN110823503B (en) * 2019-12-02 2021-05-04 中国空气动力研究与发展中心 Propeller blade angle protractor
CN112212768B (en) * 2020-09-29 2022-08-02 中国航发动力股份有限公司 Auxiliary measuring device and method for chord tangent angle of blade of stator component of casing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481062A (en) * 1949-09-06 Protractor
US2000926A (en) * 1933-03-22 1935-05-14 Leo G Cox Protractor
US2369425A (en) * 1943-04-05 1945-02-13 Gen Mills Inc Work holder and indexing means
US2359018A (en) * 1943-09-13 1944-09-26 Albert A Balk Sine bar fixture
US2397300A (en) * 1944-03-17 1946-03-26 Robert H Clark Work carrier
US3195410A (en) * 1959-09-02 1965-07-20 Gen Motors Corp Reproducing apparatus
GB915226A (en) * 1960-06-02 1963-01-09 Rolls Royce Improvements in contour checking devices
SE354721B (en) * 1970-12-30 1973-03-19 Johansson C Ab

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989003503A1 (en) * 1987-10-13 1989-04-20 Hans Rudolf Weber Angle-measuring gauge with electronic sensor and digital display
CN112896549A (en) * 2021-01-21 2021-06-04 中国民用航空飞行学院 General fixed wing aircraft rudder angle detection device

Also Published As

Publication number Publication date
US3996670A (en) 1976-12-14
JPS5156339A (en) 1976-05-18
GB1515713A (en) 1978-06-28
FR2282617A1 (en) 1976-03-19

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