Journal of the Franklin Institute; devoted to science and the mechanic arts (1826)
Franklin Institute (Philadelphia, Pa.) · Oxford, Eng. [etc.] Pergamon Press [etc.] · leaf 123
pulleys, or sheaves, bee, shows the new and usefulprinciple of effectually combining the lever and pulley to gain the utmostpower, strength, elasticity, and adaptability to the various uses of anArtificial Arm and Hand. They are easily adjusted by the wearer. Specification of the Leg.The… … the sides of the leg D D. To these side plates are immovably fastenedthe steel bolts, EE. The bolts take bearings in solid wood (properlybushed) across the entire diameter of the knee and ankle, being four- Specification of the Leg. 117 fold more reliable and durable than those of the usual…
Science · Patents · Meteorology · Technology
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