. The Architectural magazine. I am about to describe, built in four pieces and seen on thetop side, as in^^^^ 73.: the longer pieces are 35 ft., and the 73 shorterbraced fgs. 74. and 75. through the pieces 15ft. in length. Each end of the beam is em-by a cast-iron shoe (w, Jig. 72.), seen more at large in upper angle of this shoe a cylin-drical hole is cast, 75into which a cross2| in. bolt {a, ) is inserted, pro-jecting sufficientlyon each side to beembraced by theeyes, at the ends of the truss or bars (whicli are each 1^ ) on both sides. Injg. 74., c shows.

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Keywords: ., bookcentury1800, bookdecad, booksubjectarchitecture, bookyear1834