. Appleton's dictionary of machines, mechanics, engine-work, and engineering. F BE p WATCHMAKING. 827 A F, the end B of the crutch would sink between the teeth of the scape-wheel, whilst the end C wouldbe raised quite clear of them. The scape-wheel is driven by its pinion in the direction of the arrows ;but its motion suffers interruption by the alternate locking and disengagement of its teeth against thepallets of the crutch ; and as the movements of these depend upon the pendulum, its time of vibrationregulates the period in which the wheel revolves. In the position of the escapement
. Appleton's dictionary of machines, mechanics, engine-work, and engineering. F BE p WATCHMAKING. 827 A F, the end B of the crutch would sink between the teeth of the scape-wheel, whilst the end C wouldbe raised quite clear of them. The scape-wheel is driven by its pinion in the direction of the arrows ;but its motion suffers interruption by the alternate locking and disengagement of its teeth against thepallets of the crutch ; and as the movements of these depend upon the pendulum, its time of vibrationregulates the period in which the wheel revolves. In the position of the escapement shown in the figure, the pendulum is to be supposed to be at E,and to be moving towards F. Now the elevation of the pallet B, against whose under side tooth 5 waspreviously pressing, has disengaged the point of that tooth; and the scape-wheel is consequently atliberty to move onwards. But it is prevented from doing so to more than the interval of half a tooth ;for whilst the pallet B was being withdrawn from the space between 5 and 6, the pallet C was sinkinginto the interval bet
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
