File:The Architect and engineer of California and the Pacific Coast (1910) (14804474173).jpg

Identifier: architectenginee2210sanf (find matches)
Title: The Architect & engineer of California and the Pacific Coast
Year: 1905 (1900s)
Authors:
Subjects: Architecture Architecture Architecture Building
Publisher: San Francisco, Calif. : Architect and Engineer Co
Contributing Library: San Francisco Public Library
Digitizing Sponsor: San Francisco Public Library

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tools which he uses, and goodlight is one tool he cannot dispense with. Since the light is provided pri-marily for his use, that he may perform his work with maximum efficiency,it follows that it should be suited to his needs. With the flaming and intensified arcs now available, and particularlysince the advent of the tungsten lamp, it is possible to secure the requiredillumination of almost daylight quality, at even reduced cost of current, ascompared with the inefficient and costly installations of the past. Withmany classes of industrial service the high candlepower tungsten incandes-cent lamps, equipped with prismatic or properly designed metal reflectors,are admirably adapted because of their steadiness, white light, efficiency,simplicity, and low cost of operation. Glass and steel reflectors givingseveral distinct types of light distribution have been designed especiallv for •Condensed from an article by E. B. Rowe in the Iron Age, April 21, 1910. The . Irchitet i and Enpineer
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ct Lighting of an Emei ; use with tungsten lamps of the various sizes now on the market, and byselecting the proper reflector, as determined by the height or spacing of thelamps, an illumination of the required intensity and uniformity can beobtained. While always of great importance, general illumination, particularly inmachine shops, is not so vital as the local lighting t each machine. Heredirection is often as important as intensity. Figure 1 illustrates a specialsocket and reflector which will satisfactoril) meet all such requirement-.In the position shown, the lighl is thrown strongly downward, while forboring or similar inside work it is simply necessary to lengthen thecord on the adjuster and stand the lamp on the most convenient part of themachine, preferably the carriage, using the flat plate shown at the right ofthe socket as a rest. The lighting i an emery wheel is of considerableimportance. The light unit must he placed so that not only the face of thewheel, but b

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