American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 180
e of the pendulumup, and approximately causes the ce ^tre ofoscillation to describe a cycloid. This wasthe plan by which Huyghens sought to obvi-ate one of the irregularities in clocks havinglarge vibrations ; still, the varying impulsethe pendulum receives on its descent, im-parted to it from the… … 172 AMERICAN HOROLOGICAL JOURNAL. and it is now abandoned by all men of ex-perience. The pendulums of all clocks of modern con-struction do not vibrate in an arc largeenough to show any perceptible differencebetween the circular and cycloidal curve; yetwe sometimes meet with a certain class…
Clocks and watches
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