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INTRODUCTION.
Care of tools and bench 3
TOOLS AND ELEMENTARY PROCESSES.
SIMPLE JOINERY.
WOOD AND WOOD FINISHING.
TOOLS AND ELEMENTARY PROCESSES.
LAYING-OUT TOOLS--THEIR USES.
The rule should not be laid flat on the surface to be measured but should be stood on edge so that the knife point can be made to touch the divisions on the rule and the wood at the same time. Fig. 2.
Whenever there are several measurements to be made along a straight line, the rule should not be raised until all are made, for with each placing of the rule errors are likely to occur.
The rule is used to find the middle of an edge or surface by placing it across the piece so that the distances from the edges of the piece to corresponding inch, or fractional marks shall be the same, Fig. 3, the middle of the piece being at a point midway between the marks selected.
The try-square is used for three purposes: First, to act as a guide for the pencil or knife point in laying out lines across the grain at right angles to an edge or surface; second, to test an edge or end to see whether it is square to an adjoining surface or edge; third, to test a piece of work to see whether it is of the same width or thickness thruout its entire length.
Fig. 5 shows the various positions assumed in lining across a piece. The beam should be held firmly against either the face side or the face edge.
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