Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 429
m VAN NOSTKAND'S ENGINEERING MAGAZINE. the thickness at the middle of the span weighing 102.4 kilogrammes to the sq. was only 0.095 m., and the weight 130.5 metre. kilogrammes per sq. metre. (See Fig. 2.) The third example was of ordinary The fourth trial was upon a system plaster, slightly… … with a versed sine of 0.010 m., obtained formed of hollow bricks, laid with plaster by the aid of inclined joints, with a wedge- joints, without cambre, and weighing shaped key-stone; weight, per sq. metre, 128.7 kilogrammes per sq. metre. The fifth was formed of bricks, of the 143.6 kilogrammes.…
Engineering
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