CoA. Notes: Production and Industrial Administration (1963-1969)
Permanent URI for this collection
Browse
Browsing CoA. Notes: Production and Industrial Administration (1963-1969) by Author "Easterby, R. S."
Now showing 1 - 2 of 2
Results Per Page
Sort Options
Item Open Access An evaluation of the British standard proposals for symbols on machine tool indicator plates(College of Aeronautics, 1965-03) Easterby, R. S.The work detailed in this report has been undertaken as part of a research project supported by the Machine Tool Industry Research Association on Ergonomics and Machine Tool Design. In an early research project report, some comments were offered on the Draft British Standard for Symbols for Machine Tool Indicator Plates, and the Director of M.T.I.R.A, invited the author to elaborate on these preliminary criticisms. Although finalisation of the British Standard was imminent, it was realised that it would be remiss if a research project specifically devoted to ergonomics and machine tool design did not make a detailed and constructive assessment of the proposed standard symbols.Item Open Access Human factors specification for a machine tool scale reader(College of Aeronautics, 1964-05) Easterby, R. S.The length measuring devices on many machine tools must usually cover a large range while maintaining high accuracy for small incremental movements. Many machines use the operator as part of the measuring system, where he must assign numerals and carry out visual interpolation. This report attempts to define the preferrred characteristics of such indication systems in so far as they are influenced by the capabilities and limitations of the human operator. While no radical innovations are proposed, the principles underlying the design of scale readers have been examined as objectively as possible and recommendations substantiated by reference to relevant experiments.