American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 15
r required size, and the blank is ready tobe transferred to the dividing engine, in whichit is placed between centres, not by the points,but held by the arbor itself, which, it will beremembered, is concentric with them. It isnecessary to be thus supported to endure theforce necessarily applied to… … rear end the usual steel division plate, its en-tire length being pierced with a hole, c, throughwhich a plunger passes for the purpose of push-ing out the pinion after being cut; for the holein the nose of the arbor is a slight taper, sothat the action of the revolving cutter, b, tendsto drive it…
Clocks and watches
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