DelMonte, Guidubaldo, Mechanicorvm Liber

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1
Sit pondus A, quod ipſi ho
rizontis plano ſurſum ad rectos
angulos ſit attollendum; & vt
fieri ſolet, trochlea duos habens
orbiculos, quorum axiculi ſint
in BC, ſupernè appendatur;
trochlea verò duos ſimiliter ha
bens orbiculos, quorum axicu­
li ſint in DE, ponderi alligetur:
ac per omnes vtriuſq; trochleæ
orbiculos circunducatur ducta­
rius funis, quem in altero eius ex
tremo, putá in F, oportet eſſe
religatum.
potentia autem mo
uens ponatur in G, quæ dum
deſcendit, pondus A ſurſum ex
aduerſo attolletur; quemadmo
dum Pappus in octauo libro Ma
thematicarum collectionum aſ­
ſerit; nec non Vitruuius in deci
mo de Architectura, & alii. 133[Figure 133]
Quomodo autem hoc trochleæ inſtrumen­
tum reducatur ad vectem; cur magnum pondus
ab exigua virtute, & quomodo, quantoq; in tem
pore moueatur; cur funis in vno capite debeat
eſſe religatus; quodq; ſuperioris, inferiorisq́ue
trochleæ fuerit officium; & quomodo omnis in

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