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Scientific American, Vol. 60, No. 24 (1889) (1889)

leaf 10

An illustration from Scientific American, Vol. 60, No. 24 (1889), 1889, leaf 10
ney premium of $20 and a medal, at certain periods, for the en- the spring operates with full effect, in holding the limb desirable, and this requirement was met by the in- couragement of ‘‘ ingenious men and women who make extended ; as it is flexed the lever gradually assumes a ventor by a device… … are shown herewith, and have been used with unpre- the ankle to the sole, and forward to nearly the first IMPROVED KNEE JOINT, articulation of the metatarsus and toes, This block cedented satisfaction where articulated feet were was covered with India rubber, and all the rest of the The advantages…

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