The great inventions : their history, from the earliest period to the present. Their influence on civilization, accompanied by sketches of lives of the principal inventors; their labors, their hardships and their triumphs (1883)
Wilkie, Franc B. (Franc Bangs), 1832-1892 · Philadelphia and Chicago, J. A. Ruth & co. · leaf 242
ine which owed its existence to some other inven-tor. These wheels are very largely in use, their efii-ciency being rated from seventy-five to eighty per cent,of the power employed in driving them. They have manyadvantages over many other forms, in that they occupybut httle room; they have a very…
Inventions · Inventors
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