A pocket comparator is an optical device for measuring and inspection comprising a loupe and a reticle.[1] The instrument was developed and manufactured by the Bell & Howell Company, but similar instruments of other names are made by other manufacturers.[2][3]
^" by Marcus Bowman Crowood, 31 August 2015, Crafts & Hobbies
^"Low price measuring magnifier uses real glass reticle", Journal of the Franklin Institute, 1955, Vol. 259(6), pp. 516–516 [peer reviewed journal]
^Charles C. Ryerson and Anthony J. Gow: Ship Superstructure Icing: Crystalline and Physical Properties in: US Army Corps of Engineers® Engineer Research and Development Center (August 2000) p. 14
^van Altena, W. F., Low-luminosity members of the Hyades cluster. Astronomical Journal, Vol. 71, p. 482–512 (1966)
^I. B. A. Menown, G. MacKenzie and A. A. J. Adgey, Optimizing the initial 12-lead electrocardiographic diagnosis of acute myocardial infarction, European Heart Journal (2000) 21, 275–283
^The Pocket Comparator: A New Measuring Instrument, in: INDUSTRIAL QUALITY CONTROL VOL.6 NO.5, March 1950 pp. 22-23
January 01, 1970
pocket, comparator, pocket, comparator, optical, device, measuring, inspection, comprising, loupe, reticle, instrument, developed, manufactured, bell, howell, company, similar, instruments, other, names, made, other, manufacturers, bell, howell, pocket, compar. A pocket comparator is an optical device for measuring and inspection comprising a loupe and a reticle 1 The instrument was developed and manufactured by the Bell amp Howell Company but similar instruments of other names are made by other manufacturers 2 3 Bell amp Howell Pocket Comparator Reticle of Bell amp Howell Pocket Comparator source source source source source source Typographer Henri Friedlaender at work Note Pocket Comparator at 01 10 It is used for Linear measurements in fractions of an inch 4 5 6 Circular measurements in fractions of an inch Radius measurements Angle measurements Narrow line width measurements 7 Circular measurements in decimals of an inch Linear measurements in inches Linear measurements in millimeters Measurements are performed by bringing the surface of the reticle as close as possible to the work inspected 8 References edit The Pocket Comparator A New Optical Measuring Instrument in Electrical Engineering Volume 69 Issue 3 p 220 March 1950 http ieeexplore ieee org xpl login jsp tp amp arnumber 6433729 amp url http 3A 2F 2Fieeexplore ieee org 2Fstamp 2Fstamp jsp 3Ftp 3D 26arnumber 3D6433729 by Marcus Bowman Crowood 31 August 2015 Crafts amp Hobbies Low price measuring magnifier uses real glass reticle Journal of the Franklin Institute 1955 Vol 259 6 pp 516 516 peer reviewed journal Charles C Ryerson and Anthony J Gow Ship Superstructure Icing Crystalline and Physical Properties in US Army Corps of Engineers Engineer Research and Development Center August 2000 p 14 van Altena W F Low luminosity members of the Hyades cluster Astronomical Journal Vol 71 p 482 512 1966 I B A Menown G MacKenzie and A A J Adgey Optimizing the initial 12 lead electrocardiographic diagnosis of acute myocardial infarction European Heart Journal 2000 21 275 283 DEPARTMENT OF THE ARMY EM 1110 2 2002 U S Army Corps of Engineers EVALUATION AND REPAIR OF CONCRETE STRUCTURES p 2 11 http www publications usace army mil Portals 76 Publications EngineerManuals EM 1110 2 2002 pdf The Pocket Comparator A New Measuring Instrument in INDUSTRIAL QUALITY CONTROL VOL 6 NO 5 March 1950 pp 22 23 Retrieved from https en wikipedia org w index php title Pocket comparator amp oldid 1187485443, wikipedia, wiki, book, books, library,
