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Scientific American, Vol. 54, No. 12 (March 1886) (1886)

leaf 4

An illustration from Scientific American, Vol. 54, No. 12 (March 1886), 1886, leaf 4
in our sketch (No. cast on the back. The gap frame is of massive pro- 1). The point of the bayonet was held in a shoe, the SCBEW CUTTING AND SKLF-ACTING SLIDING GAP LATHE. portions, and is arranged to swing 15 ft. in diameter center of the blade rested on the bridge; the socket and 4 ft. clear of… … and of ample strength for a quarter of a circle, and 1. The " Bridge " Test (old style) for Triangular Bayonets. 6. The " Vertical Pressure " Test for Cavalry Swords. (A weight of heavy duty; the arms on being released must re- 8. The " Curve " Test (the method adopted during the past two years).…

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