ay, all kindsof Vulcanizing of Caoutchouc. We illustrate herewith improved mechanism for elevators, in which will be found combined several novel devices, tend- ing to simplify the apparatus as well as to render the same strong and safe. Among the new features are the means for holding the platform… … neatly fitted together. which isa pulley, F. Cords Patented through the Scien- from this pulley are led down alongside the elevator carriage. By means of said cords the pulley, F, may be turned in one or the other direction, so For further in- etc., when added to caoutchouc softened in bisulphide…
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