In some of the very fine escape-ments the faces of the blocks are jeweled. The arnis of theinner part of the escape wheel are usually set at equal an-gular distances between those of the outer, although this is THE MODERN CLOCK. 157 not absolutely necessary, and the lifting pins are set on radiito… … Fig. 49. From the comparatively great angle at which the arms areplaced, the distance through which they have to be lifted togive sufficient impulse is less in this escapement than in onewith a larger number of teeth acting in the same plane, asthe pallets would then hang more nearly upright. This…
Clocks and watches
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