The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 66
Fig- 3—Good Bench Lighting The . hi hitei t and I ngineer 89 … Fig. 4—Good Illumination of a 1 throws the maximum amount of light on the work. The remarkable con-centration which this reflector gives is clearlj shown in the illustration, inwhich the only spot stronglj lighted is the casting. One of the hardest machines to light correctly is the planer.…
Architecture · Building
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