Fig. 166 Fig. 167 escape wheel suffers a recoil as in the pallet escapement, and on thereturn of the pendulum the tooth c gives out its impulse in thecontrary direction. With this new system it became possible toincrease the weight of the bob and at the same time lessen theeffective motor power.…
Clocks and watches
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.