San Francisco : Architect and Engineer, Inc · leaf 113
New York City. With this increased speed,it is impossible for an operator towatch the signals and make accurate land-ings. This trouble has been overcome, how-ever, by the invention of the automaticsignal control, which derives its name fromthe fact that the elevator is controlled bythe signals in… … All Window Tracings of Indiana Limestone GRACE CATHEDRAL, SAN FRANCISCO, CALIFORNIALEWIS P. HOBART, ARCHITECT; CRAM & FERGUSON, CONSULTING ARCHITECTS GRACE CATHEDRAL JhnC?r ran c/sco
Architecture · Building
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