London : Longman, Rees, Orme, Brown, Green, and Longman · leaf 461
at these two buttresses differ. In order to try the result of experiment, a model was made,on the scale of half an inch to a foot, of the chapel buttress,omitting, however, the lower part, c d in the diagram, when theproportions became as follows: — Thickness. Height. Remarks. 9 ft.1317 4 ft.20 40… … When a lateral force was applied at a, it required the ma-sonry to be raised 12 ft., or 6 in. in the model, before it caused thebuttress to revolve on i w ; since, with any weight less than this,the part of the buttress a m revolved only on the set off at vi.On apylying the lateral force at .r,…
Architecture
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