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Scientific American, Vol. 66, No. 21 (1892) (1892)
leaf 8
y the required within the thicker portion of the rim and held in pitch for an octave, and two additional bells, one above place by the tail stock of the lathe. This prevents]. and the other below the octave. These bellsfirst of all vibration and the chattering of the tool; an ordinary had to be… … placed a wooden roller, the gudgeons of which are Fig. 2—-ARRANGEMENT OF THE BELL CIRCUIT, © 1892 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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