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Scientific American, Vol. 58, No. 14 (April 1888) (1888)

leaf 4

An illustration from Scientific American, Vol. 58, No. 14 (April 1888), 1888, leaf 4
rounding surface, and extending at such distance downward as to be under all conditions below the plane ft Bronze Composition. of the under side of the flukes. The inventor has had Copper and 8 per cent Al and Si.... 58.500 this attachment in practical use for a year, and it is Copper and 10 per… … pendent supporting frame. This construction gives SMITH'S SAFETY ATTACHMENT FOB ANCHOBS. great facility of raising or lowering the ladder, and of All bars were 22 inches in length by 1% inches in dia- locking or holding it at different heights. meter, and 10 inches or 15 inches between elongation…

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