van- center of gravity of the whole combination will pass mous topweight necessitates the use of a very large through some definite point on whichever side is up- tage, and recently conspicuous interest has been cen- pontoon; and secondly, that owing to the radius>of tered in a new cantilever… … proper, as upon the mechanical absolutely balanced, there being a The elevator at rest upon the pontoon's deck for transit. This view well shows the combination of levers whereby it certain excess allowed on the ele- parallel motion of cantilever arm and balance weight. vator end for sinking the…
Elevator · Sudd · Machine · Grain · Sir charles · Scientific American · Ten cents · Special machinery · Long island · Address munn · Internal combustion · West coast · American september · Grade crossings
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