escapement, draw a cir-cle representing the escape wheel diameter, then draw theline of centers and set off on the diameter of the escapewheel from each side of the line of centers 60° of its cir-cumference, thus marking the positions for the pallet stops120° apart. Draw radii from the center of… … Fig. 48. THE MODERN CLOCK. I55 This is clearly shown at H, Fig. 47. The points of sus-pension for the pallets are planted on the line of these tan-gents and a little be!ow the point H, where the tangents meeton the line of centers. This is done to avoid the mechanicaldifficulty of having the studs…
Clocks and watches
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