Playtner, H. R. [from old catalog] · Chicago, Hazlitt & Walker · leaf 27
e engaging pallet scrapes on the liftingplane of the tooth, yet it is astonishing to find some other-wise very fine watches being manufactured right alongwhich contain this fault; such watches can be stoppedwith the ruby pin in the fork and the engaging palletin action, nor would they start when… … Fig. 10. in the latter it would always be as SB, Fig. 13. This isa shorter lever than QB, consequently more powerful, al-though the greater velocity is at Q, which only comesinto action after the inertia of wheel and pallets has beenovercome, and when the greatest momentum during con-tact is…
Clocks and watches
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