actice among escapement makers to employtangential lockings, as we explained and illustrated in Fig. 16. Now, when we adopt circular pallets and carry the locking faceof the entrance pallet around to the left two and a half degrees,the true center for the pallet staff, if we employ tangent… … Fig. 31 that the line A k is not at right angles to the line s I; and, con-sequently, the locking face of the entrance pallet E has not reallythe twelve-degree lock we are taught to believe it has. We will not discuss these minor points further at present, butleave them for subsequent…
Clocks and watches
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