Hatfield, Robert Griffith, 1815-1879. [from old catalog] · New York & London, Wiley and Putnam · leaf 206
er be omitted. Andin sawing the shoulders, care should be taken not to saw into thetenon in the least, as it would wound the beam in the place leastable to bear it. 338.—Thus it will be seen that framing weakens both pieces,more or less. It should, therefore, be avoided as much as possi-ble ; and… … Fig. 242. Fig. 243. 339.—In a framed truss for a roof, bridge, partition, &c., thejoints should be so constructed as to direct the pressures throughthe axes of the several pieces, and also to avoid every tendencyof the parts to slide. To attain this object, the abutting surfaceon the end of a…
Carpentry · Architecture
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