| 摘要 |
A clock hand setting mechanism mounted upon the crystal of a clock and having a manually manipulatable setting stem whose axis is substantially coincident with the axes of the hour, minute, and second hand shafts which extend from the clock movement, the setting stem being adapted for longitudinal movement toward and away from the clock dial, with the extremity of the stem closest to the dial carrying at least one finger displaced from and running generally parallel to the axis of the stem for selectively engaging and rotationally adjusting the second and minute hands of the clock, the second hand being driven by the second hand shaft through a frictional clutch device to prevent damage to the escapement mechanism of the clock movement while the position of the clock hands are being adjusted.
|
