Educational woodworking for home and school (1908)
Park, Joseph C · New York, MacMillan · leaf 117
j^.«B«—*-«^ Fig. 122 a. — Wood trimmer. One of the best made is the Fox, shown in Fig. 122 a. Itis built upon the mechanical principle of a shearing cut,the knife shearing against the point of a gauge which ismade to swing about a pivot in the arc of a circle. Thegauge and knife are the most vital… … Fig. 122 b. — Wood trimmers.98 PART II Woodworking Machines 79. Work. — The overcoming of resistance of any kind through space is called work. It implies a change of position. The fundamental formula for work, there- fore IS IF (Work) = i^(Force) x s(Space). 80. Energy. — The capacity of a body for…
Manual training · Woodwork
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