Wilson’s Carpentry and joinery / by John Wilson (1891)
Wilson, John · Manchester [England] : Percy Bros. · leaf 54
ters, the bolt through thebeam is square, this should be used when a suflicient length of the tie-beamend cannot be left on to resist the pressure, length must not be gained by cuttingback as shown at Fig. 20. At the head of the rafter the king-post is cut in square,this prevents the rafter from… … ARITHMETIC. In order that a student may thoroughly grasp the meaning, and understandthe principle of determining results by figures, he should be conversant with thefollowing somewhat elementary principles in arithmetic. For instanoe, in suchas determining the length of a line ; when the base and…
Carpentry · Joinery
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