DelMonte, Guidubaldo
,
Mechanicorvm Liber
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rectam lineam LO, quæ axi cylindri ſit æquidiſtans. </
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">ſintq; MN
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iuxta cunei verticem I. </
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">Circumuertatur KF, & perueniat ad kP:
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dum autem kF erit in kP, tunc TV erit intra pondera MN; ſi
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cut ſupra diximus. </
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<
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id.2.1.237.19.1.4.0
">M igitur verſus L mouebitur, & N verſus O.
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<
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">ſimiliter oſtendetur, dum kP erit in KQ, tunc GH eſſe intra pon
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dera MN; & M erit in X, & N in Z; ita vt XZ ſit æqualis GH.
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</
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N16E6E
">quare dum kF circumuertitur, ſemper pondus N mouetur verſus
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O, & ſuper helicem IRS; M verò ſuper aliam helicem.
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<
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id
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id.2.1.237.20.1.1.0
">Similiter ſi cochlea plures habeat hæ
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lices, vt in ſecunda figura, pondus A,
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dum cochlea circumuertitur, ſemper ſu
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per helices BCDEFG mouebitur;
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dummodo pondus A aptetur ita vt mo
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ueri non poſsit, niſi ſuper rectam HI ipſi
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cylindro æquidiſtantem. </
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<
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id.2.1.237.20.1.2.0
">eodem enim
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modo, quo ſuper primam mouetur heli
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cem, mouetur etiam ſupra ſecundam,
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& tertiam, & cætera. </
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<
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id
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id.2.1.237.20.1.3.0
">quotcunq; enim
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fuerint helices, nihil aliud ſunt, quàm
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latus cunei circa idem cylindrum iterum
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atq; iterum circumuolutum. </
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<
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">& ſiue co
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chlea fuerit horizonti perpendicularis,
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ſiue horizonti æquidiſtans, vel alio mo
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do collocata, nihil refert: ſemper enim
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eadem erit ratio. </
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