This operation is completed before the motion of the segment brings the pin k in contact with the ratchet-wheel t.
The ratchet-wheel R is attached to the hub of the driving-wheel.
An' this ratchet-wheel isn't on the pawl prop'ly—not like what this book says it ought to be.
A detail of one of them is shown at v in Fig. 1380, where x is the ratchet-wheel.
H is a ratchet-wheel, which, like the key-board, is insulated from the rest of the apparatus.
The oscillating of the tappet-arm produces an intermittent rotary motion of the ratchet-wheel.
A catch or pall, turning on a fixed axis, prevents the ratchet-wheel or rack from reversing its motion.
When the tympanum vibrates under the influence of the voice, the stylus acts as a pawl and turns a ratchet-wheel.
A hand-drilling device, in which a lever carries a pawl that engages with a ratchet-wheel, which drives the drill.
In the coach-seat at b, the fly with its pinion, as well as a ratchet-wheel, is necessary.