. Canadian forest industries 1907. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. C-1870—Log Loader and Piler. The one advantage a log possesses over other bodies is that being of a cylindrical form it may be rolled up an incline plane instead of lifted, and this na- tural form of leverage has always been followed, and (unfortunately for the operator) is still to a very large extent, applied at the present time. In an attempt to improve on this process, a device (Cut A) was invented in 1857. While the principle is exactly similar to that still empl
. Canadian forest industries 1907. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. C-1870—Log Loader and Piler. The one advantage a log possesses over other bodies is that being of a cylindrical form it may be rolled up an incline plane instead of lifted, and this na- tural form of leverage has always been followed, and (unfortunately for the operator) is still to a very large extent, applied at the present time. In an attempt to improve on this process, a device (Cut A) was invented in 1857. While the principle is exactly similar to that still employed in many operations, its evident intent was to eliminate the horse either as a matter of convenience, or to save horses, the substitute being a fixed winch, fastened to one side of the carriage bed, and operated by a removable lever. The only apparent advantage in this contrivance was the ratchet feature, which guarded against the log slipping back, a virtue which was more than offset by the slowness of the process. Cut B illustrates one of the earliest forms of a logging derrick erected on a movable base and placed alongside of the load. Invented in 1868, this appliance apparently depart- ed from the usually accepted forms of hoisting de- vices, in that the log, having been raised to the side of the carriage, was placed on the load by being low- ered on to the end of a pivotal leg, which, as the log descended, was swung nut by its own weight to the desired point 011 the load. While its superior points are not apparent, the fact that it rested on skids shows that the inventor recognized the necessity of a portable device which could be readily dragged along the ground to the various points for A later contrivance, known a's a log loader and piler, shown in Cut C was patented in 1870, designed for loading wagons. This machine was also built on runners to facilitate its being moved from place to place. It embodied one feature, however, which was a decided stop in
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