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Scientific American, Vol. 55, No. 2 (July 1886) (1886)

leaf 3

An illustration from Scientific American, Vol. 55, No. 2 (July 1886), 1886, leaf 3
pivoted to the bed plate. The wheel is loosely united at the bottom and form a point, and their op- mounted upon the end of a shaft extending across the posite ends are connected by arms with the handle. GUTHRIE'S IMPROVED bed plate and journaled in suitable standards. There The curvature of the… … of the pump cylinder, so that the suction pump and of hundreds in the LINDHOLM'S ADDING MACHINE the two air force pumps at the sides will be operated sum. With the jour- from a common piston rod. The air chambers of the nal of the gear wheel air pumps are connected with the air-tight cover unit- so…

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