Rudiments of the art of building : in five sections : general principles of construction, materials used in building, strength of materials, use of materials, working drawings, specifications and estimates (1871)
104 RUDIMENTS OF THE Timbers that have to be joined in the direction of their length are scarfed, as shown in fig. 88 ; the double wedges, a a, serve to bring the timbers home, when they are secm'ed, Fig, 88. either by bolts, as shown at h h, or by straps, as at c c, the latter being the most… … keeps the rafter in its place, and prevents it from slipping away from the abutment cut for Fig. 90. it, which, by throwing the thrust on the tenon, would probably split it. The end of the rafter should be cut with a square butt, so that the shrinkage of the timber will not lead to any settle-…
Building · Building materials · Engineering
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