Lockyer, Norman, Sir, 1836-1920, Seabroke, G. M. (George Mitchell), 1848-1918 · London, Macmillan and co. · leaf 230
temperature atpleasure. cuAP. xiu.] THE CLOCK AND CIIROMOMETER. 207 Of the number of watcli and chronometer escape-ments we may mention the detached lever—the onemost generally used for the best watches, the form is shownin Fig. 98. P P are the pallets working on a pin at s asin the dead-beat clock… … FiG. 97.—Compensating Balance. tion of the arrow, falls into the fork of the lever, andmoves it on and withdraws the pallet from the. tooth d,which at once moves onwards and gives the lever animpulse as it passes the face of the pallet. This impulseis communicated to the balance through the pin i,…
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