Playtner, H. R. [from old catalog] · Chicago, Hazlitt & Walker · leaf 16
Fig. 1. case of a 16 tooth wheel scaping over three teeth, the anglewould be «fj« =56/4°. Pallets may be divided into two kinds, namely: equidistantand circular. ^.The equidistant pallet is so-called because thelockings are an equal distafice from the center; sometimesit is also called the… … with EB, and FB with AD, the tangents, \yhich is the valu-able feature of this form of escapement. AC and AD, Fig. 2, are tangents to the primitive circleGH. ABE and ABF are angles of 300 each, together IO THE LEVER ESCAPEMENT. therefore forming the angle FBE of 6o°. The locking circleMN is struck…
Clocks and watches
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
