Rudiments of the art of building : represented in five sections [...] for the use of architects, builders, draghtsmen, machinists, engineers and mechanics (1853)
Bullock, John · New York : Stringer & Townsend · leaf 75
dencyto spread and thrust out the walls. In then example before us, this effect has been pre-vented by the insertion of tie-beams, fromLMii which the collars have been propped up (fig.69), thus, in fact, balancing the roof on thecentres of the collars, which are in conse-quence violently strained.… … a post; 6 sill;o c struts. Fig. 60.
Building
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