Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 419
sures retreating farther in 3 1 9.38 3 17-31 5.77 1 4 12.11 4 2 the arch than for a load on the summit as 4 2J.42 before considered. The thrust on joint 1, on the right, was LEFT SIDE. inclined at an angle of 15° to the normal S J M C S , M 1 to that joint, which accounts for the sliding, 1. | 2.03… … 9. hi = h% = O.S A, = 9. The vous?oir on which the weignt was P3 = i.o p2;= 4. placed would have slid along its joints, but P1 = 9.4 8.2 e3 0 for pins being thrust into its edges in a e, = 8.2 Po = 8.08 ds = 26.49 c?/= «T, =» 18.41 manner that did not interfere with rota- tion. From equations (8),…
Engineering
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