Читать книгу The Handyman's Book of Tools, Materials, and Processes Employed in Woodworking - Paul N. Hasluck - Страница 70

A plane in operating on a rough piece of wood removes successive shavings from the more prominent parts, until a level surface is attained. The flatness attainable with the plane is greatly dependent on the skill of the workman. He must always try to plane hollow rather than round, for if a plane be flat and long in the stock, it is impossible, as has been stated, to give any appreciable concavity to a surface of moderate size. For this reason roughing-out planes, or jack planes, are made as long in the stock as possible without making them too heavy and inconvenient. Planes used for trueing are invariably called trying planes, and are used to correct the inequalities left by the jack. Very long ones go by the name of jointers, and are principally used for making long joints.