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Scientific American, Vol. 94, No. 8 (1906) (1906)

leaf 11

An illustration from Scientific American, Vol. 94, No. 8 (1906), 1906, leaf 11
en This protection consists in surrounding the pile with Thus every chair will be a liferaft, and every life- off by the food absorbed by a grown man and stored terra cotta pipe raft could be used as a chair, instead of uselessly occu- each day would be about 3,000 to 3,500 kilogramme- sections… … [pas NN] The receptacle is TRAINING WALL. sent patent the invention is an improvement in of a block which is automatically locked upon RECENTLY PATENTED INVENTIONS, secured to the frame of the machine when not machines for developing and fixing photo- the establishment of a definite tension in the…

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