determination of commercial glycer- ing, the weight being held by a brake band, applied to the gines, adapted for the removal of cargoes from vessels and ine; a solid blue coloring matter, applicable like indigo but drum when the engine is in motion. The manufacturer also stone from quarries, and… … drum being used for running the ham- of white to reduce the colors. Hence Fig. l.-MUNDY'S DOUBLE DRUM PORTABLE HOISTER, mer, the other for hoisting the piles. mixture with white has an effect simi- There is also a winch on the end of the lar to moving all the colors towards the lower drum shaft,…
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