Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 291
timesfound that the stonework is untrue. Insuch a case, the obvious remedy is to packwith slightly tapered wedges. 12 266 CARPENTRY AND JOINERY. Centering for a Stone Arch andBrick Back Arch. Figs. 878 and 879 show the arrangementof centering often used when the front of anarch is of stone and the… … Fig. 876.—General View of Centre, with Wedges, etc. with a 4J-in. reveal. The centre for thebrickwork is larger to allow of the 4§-in.reveal with lagging as shown, whereas a ribcentre built up of two thicknesses as shownis sufficient to support the voussoir if thecentre of gravity of the stones…
Carpentry · Joinery
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