Vashon, George S., & co., Washington, D.C. [from old catalog] · Washington, D.C., G. S. Vashon & co. · leaf 43
22~E^ … MECHANICAL MOVEMENTS Patents Guaranteed. 43 4. Elliptical spur-gear for securing variable speed. 5. Beveled gears. 6. Means for imparting an alternate rectilinear motion to a rack-rod by acontinuously rotated mutilated gear. 7. Means for transmitting motion from one shaft to another, said…
Patents · Inventions
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