Vashon, George S., & co., Washington, D.C. [from old catalog] · Washington, D.C., G. S. Vashon & co. · leaf 47
58 *(§) MECHANICAL MOVEMENTS Patents Guaranteed. 47 44. I,azy tongs. A system of crossed levers pivoted together by whichthe amount of a rectilinear motion is increased by the proportional numberof sections in the tongs. 45. A rack adapted to receive rectilinear motion by the rotary motion…
Patents · Inventions
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