A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 454
nerally left in place and remains in the buildingafter the masonry arch is laid over it. When the masonbuilds the brickwork of the chimney he corbels out onecourse of brick about 1^ inches at the level of the under sideof the floorbeams, as shown at c, and the carpenter buildshis center to have one… … Fig. 80. lagging/is nailed, is sawed to the curve of the arch so thatthe small end will be about \\ inches in thickness where itrests on the brickwork at c, and is about 4^ or 5 inches lessat the large end than the depth of the floorbeams. Thenumber of pieces like c required for a trimmer-arch…
Architecture · Building
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