Gear's illustrated catalogue of wood and iron working machinery (1872)
A.S. Gear, Gear, A. S · Boston : Printed at A.S. Gear's printing office, 62 Sudbury Street · leaf 401
The next following illustration. Figure P, shows the patented construction brought to perfection, inasmuch as ahigher dividing node has been chosen at will, which invariably contains all the lower overtone vibrations down to thefundamental tone of the entire length of the string. Figure P. … P shows the transverse section of a grand (fully described under Patent No. 14), with capo dastro bar andcupola frame. The tone produced by a string consists of a fundamental tone together with a number of partial over-tone vibrations ;the latter are again divided into perfect consonances (the…
