English: Identifier: teachershandboo00salo

Title: Teacher's handbook of Slöjd Year: 1900 (1900s) Authors: Salomon, Otto. [from old catalog] Subjects: Publisher: [n.p.] Contributing Library: The Library of Congress Digitizing Sponsor: The Library of Congress

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Text Appearing Before Image: The pressure with the left hand at the start preventsthe heel of the plane dropping, and the pressure withthe right hand at the finish of the stroke prevents thetoe of the plane falling. For position of worker see Plate III. 132 Name of Exercise. Purpose and Description of Exercise. 9. Squaring. To prove whether two plane surfaces in apiece of wood are at right angles. The accompanying sketch (Fig. 92) simplyshows the position of the square intesting for a right angle. But beforethis the square has been used in twodifferent ways to test the broad flatside of the wood first planed. Beforethe edge can truly be at right angleswith the side, the side itself must belevel and true, and in testing this thesquare is turned up and the outeredge of the blade is held on the wood,first lengthwise, and then crosswise.It follows, therefore, that the broadersurface of the wood is planed first,and when this surface is true, theedge is planed, and it is then that thisspecial exercise (No. 9) comes in.

Text Appearing After Image: Ficr. 92. 133 Tools required. Directions for Work. Try square. The inner edge of the stock of the square is held againstthe side of the wood first planed. The blade rests onthe edge, and is moved from end to end of the wood.The test is to observe that the stock and the blade ofthe square fit exactly on to these two surfaces through-out their length. Hold the wood and the square as shown in Fig. 92, buttowards the light, and keeping the stock of the squarefirmly against the side of the wood, and the bladeon the edge, and move from end to end. 134

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