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Scientific American, Vol. 56, No. 4 (January 1887) (1887)

leaf 4

An illustration from Scientific American, Vol. 56, No. 4 (January 1887), 1887, leaf 4
oint. of curved knives. The rear knives are curved outward, while the central and upper knives are curved inward, UACNIDEB'S IMFBOVES AUTOUATIC STEP LASDEB. COHPBESSED AIB GBEASE CTTP. so they will counteract the side draught of the rear The great merits of the grease cup shown in the ac- serrated… … manner the knives themselves carry a part of the when the cup is filled door while being opened and for fastening it in an weight of the frame, while the coiled springs exert a completely with grease. The cap is then screwed down open position. The base plate is formed with a lo'ngi- downward pull…

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