The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . pany, who petitioned theking not to make the grant until the council could see and examineQuares watch. The council investigated both watches and finallydecided in favor of Quare, his watch having but one push piece, whilein Barlows there were two. Fig. 239 illustrates a half-quarter repeatingwatch by Nicole & Company. The principle of all repeating watchesis the same, though some arrange the parts somewhat differently. The small mainspring which supplies the power for repeating, iswound
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The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . pany, who petitioned theking not to make the grant until the council could see and examineQuares watch. The council investigated both watches and finallydecided in favor of Quare, his watch having but one push piece, whilein Barlows there were two. Fig. 239 illustrates a half-quarter repeatingwatch by Nicole & Company. The principle of all repeating watchesis the same, though some arrange the parts somewhat differently. The small mainspring which supplies the power for repeating, iswound by pushing around a slide that projects from the band of the case.This slide is the extremity of a lever which presses against a pivoted Repeater. 378 rack engaging with a segment on the barrel arbor. There is underneatha segment of greater radius containing twelve ratchet teeth. The num-ber of hours to be struck is regulated by the position of the hour snail inprecisely the same way as the striking work of a clock. At twelveoclock the lowest step of the snail is presented to the stop, so that the. Fig. 239. rack can be traversed its full extent. In returning, each one of thetwelve ratchet teeth in turn lifts the hammer and strikes the hours. Thequartec rack has two sets of three ratchet teeth each, and as the slide ismoved round the all-or-nothing piece, as it is called, releases the quarterrack, against which a spring is constantly pressing. The quarter rack isstopped by the quarter snail. After the hours are struck a curved finger, or gathering pallet, on the barrel arbor presses the quarter rack to itsoriginal position, and in passing each of the ratchet teeth, by pushingaside a pallet fixed to the same arbor as the hammer, strikes a blow.Whether one, two, or three quarters are struck depends, of course, onthe position of the quarter snail. The half-quarter rack, with but one ratchet tooth, is placed on top, and works with the quarter rack. Between each quarter and sevenminu