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Scientific American, Vol. 90, No. 17 (April 1904) (1904)

leaf 4

An illustration from Scientific American, Vol. 90, No. 17 (April 1904), 1904, leaf 4
ing faced plate, A (Pig. -3), which slides in a second plate, B. current impulses through the solenoid, A, at intervals off square, are placed in the machine shown in the il- The latter holds the paper band in a fixed position by of l-5th second, and the needle point thus punctures lustration, Pig.… … gasoline lamp or torch is number of spaces and frac- FififS. 2, 3, 4.—THE WORK OF THE ALUMINIUM Fig. 1.—A NEW ALUMINIUM WELDING noted at C, and the flame tions which have been un- WELDING MACHINE. MACHINE. © 1904 SCIENTIFIC AMERICAN, INC

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