 | Sir Norman Lockyer - 1916 - 1104 σελίδες
...eyes of an operator when engaged on his work, or when looking horizontally across the workroom. (d) The placing of lights so as to avoid the casting of extraneous shadows on the work. Certain recommendations are also made regarding the amount of illumination necessary in the working... | |
 | 1917 - 154 σελίδες
...of lamps so that light from them does not fall directly on the eye of the operator when engaged at his work or when looking horizontally across the workroom;...avoid the casting of extraneous shadows on the work. In its report on the Effect of Industrial conditions upon eyesight (Memorandum No. 15) the committee... | |
 | United States. Bureau of Labor Statistics - 1916 - 744 σελίδες
...illumination over the necessary area of work. 3. The placing or shading of lamps so that light from them does not fall directly on the eyes of an operator when...adoption of nightwork and the fact that women and boys are employed in largo numbers, is recognized, for "bad lighting affects output unfavorably, not only... | |
 | Edgar Leigh Collis - 1920 - 308 σελίδες
...cent, can be ensured. The illustration shows the leading features of one form of ventilating gas lamp. operator when engaged on his work, or when looking...the casting of extraneous shadows on the work. The Departmental Committee on Lighting referred to above recommended that : — I. There should be a statutory... | |
 | Edward William Hope, William Hanna, Clare Oswald Stallybrass - 1923 - 786 σελίδες
...eyes of an operator when engaged on his work or when looking horizontally across the workroom. (d) The placing of lights so as to avoid the casting of extraneous shadows on the work. Standards of Illumination.— The scientific standard for measuring the amount of light is a foot-candle,1... | |
 | 1916 - 346 σελίδες
...eyes of an operator when engaged on his work, or when looking horizontally across the workroom. (d) The placing of lights so as to avoid the casting of extraneous shadows on the work. The next question is the desirability of specifying the amount of illumination implied in the terms "adequate... | |
 | 1916 - 550 σελίδες
...eyes of an operator when engaged on his work, or when looking horizontally across the workroom. (,/) The placing of lights so as to avoid the casting of extraneous shadows on the work. The Committee propose the following minimum values of illumination (measured at floor-level) as being desirable from... | |
 | 1916 - 1110 σελίδες
...engaged on his work, or when looking horizontally across the workroom, and (4) the placing of light so as to avoid the casting of extraneous shadows on the work. In the Factory 'Acts of the United Kingdom there are no general provisions for lighting as for heating... | |
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The placing of lights so as to avoid the casting of extraneous shadows on the work. 