. Encyclopaedia; or, A dictionary of arts, sciences, and miscellaneous literature; constructed on a plan, by which the different sciences and arts are digested into the form of distinct treatises of . es round the locking,wheel, called alfo the count-tuhee!; ordinarily with ele-ven notches in it, unequally diflant, to make the clockftrike the hours. Befides the wheels, to the clock part belongs thera(h or ratcli; a kind of wheel with twelve large fangs,running concentrical to the dial-wheel, and lervingtolift up the detents every hour, and make the clockftrike: the detents or flops,
. Encyclopaedia; or, A dictionary of arts, sciences, and miscellaneous literature; constructed on a plan, by which the different sciences and arts are digested into the form of distinct treatises of . es round the locking,wheel, called alfo the count-tuhee!; ordinarily with ele-ven notches in it, unequally diflant, to make the clockftrike the hours. Befides the wheels, to the clock part belongs thera(h or ratcli; a kind of wheel with twelve large fangs,running concentrical to the dial-wheel, and lervingtolift up the detents every hour, and make the clockftrike: the detents or flops, which being lifted upand let fall, lock and unlock the clock in ftriking ;the hammer, as S, which flrikes the bell R ; the ham-mer tails, as T, by which the ftriking pins draw backthe hammers ; latches, whereby the work is lifted upand unlocked ; and lifting-pieces, as P, which lift upand unlock the detents. The method of calculating the numbers of a pieceof clock-work having fomething in it very entertain-ing, and at the fame time very eafy and ufeful, weIhall give the readers the rules relatingthercto : i. Re-*gard here needs only be had to the covmting-wheel, flriking- riytc CM,. ^y/- ^.. //?
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Keywords: ., bookcentury1700, bookdecade1790, booksubjectencyclo, bookyear1798
