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Scientific American, Vol. 78, No. 3 (1898) (1898)

leaf 7

An illustration from Scientific American, Vol. 78, No. 3 (1898), 1898, leaf 7
e pile, and the pile was hoisted, swung frames or platforius measuring 20 by 24 feet were car- of the slits already made cut two slits (which, if pro- ried upon rollers. The mattresses were brought to the round and lowered into position. The pump was perly done, will be parallel to each other), so… … tin (point inward) serving to indicate and its head soldered during the sinking to the lid of the tin. when the proper tripping lines, the platform was given a sufficient pitch level had been reached. The driver was then swung By pressing a night light or small piece of candle on the to slide the…

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