General Roofing Mfg. Co. · General Roofing Mfg. Co. · leaf 56
require all moving picture machines to be operated insmall sheet iron or asbestos houses having automaticdoors. All small openings should have hinged doorsattached by ropes and pulleys to the main door.Whenever the film ignites the operator simply stepsout and closes the main door which… … SHOWING METHOD OF CONSTRUCTING FALSE FLOOR A Modern Office Building THERE are many reasons for the success of thelarge modern office building. There is an economyin maintenance, where the building is manystories high, and the increase in ground area does notcause a proportionate increase in…
Architecture, Domestic · Designs and plans
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