Cant hook : A wooden lever with a movable iron hook. hear the end; -- used for canting or turning over heavy logs, etc.

Example:


Taxonomy
cant hook, logs, free encyclopedia, cant dog, logging tool, metal hook, swivel hook, search, movable, teeth, tool description, Lumberman's Museum, Patten, Maine, sleds, pole, swing, Joseph Peavey, loggers.

Defination from the web:
cant hook has a blunt tip, often bearing teeth. ... In 1858, Joseph Peavey, a blacksmith in Stillwater, Maine, made a rigid clasp to encircle the cant dog handle with the hook on one side. ...