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Scientific American, Vol. 67, No. 12 (September 1892) (1892)

leaf 3

An illustration from Scientific American, Vol. 67, No. 12 (September 1892), 1892, leaf 3
gement with the trigger rod, and tremely wide limits, according to the composition and ♦ i ». ♦ the gate is dropped to cut off the flow of the liquid nature of the alloy, and according to the usage for AN IMPROVED BOLT-THREADING MACHINE. automatically. An inlet, threaded to receive a screw which it… … making a reliable and labor-saving BECHEB'S BEVOLVING-TURRET BOLT-THREADING MACHINE* BOOS' FILLING APPABATU8. © 1892 SCIENTIFIC AMERICAN, INC.

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