London : Longman, Rees, Orme, Brown, Green, and Longman · leaf 442
es, resting upon this movable pillar, and abuttingeach other, support the weight of nine bricks, or a fourth partof the pier of 36 in. in height. The Gothic arches, when placed under such circumstancesas the above, but with the pillar 48 in. high, carry the balancingpier of diagram ^g. 149., which… … Experitnetits to show the Laws of the Pressure of Roofs onWalls. — The walls, or pieis, represented in the diagrams fgs.160. and 161. are composed of wooden bricks, 2 in. wide by4 in. long; and the roofs are boards, from half an inch to 2 in.in thickness, that rest upon the whole length of the…
Architecture
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