Vitruvius
,
M. Vitruvii ... de architectura libri decem, ad Augustum Caesarem accuratiß conscripti: & nunc primum in Germania qua potuit diligentia excusi, atq[ue] hinc inde schematibus non iniucundis exornati
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DE ARCHITEC. LIB. X.
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xml:space
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">ALIVD MACHINAE TRACTORIAE
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genus. CAP. V.</
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">EST autem aliud genus machinæ ſatis artificioſum, & </
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<
s
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xml:space
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ritatis expeditum: </
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<
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xml:space
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">ſed in eo dare oper am non poſſunt niſiperiti. </
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<
s
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xml:space
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enim tignum, quod erigitur & </
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<
s
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xml:space
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">diſtinetur retinaculis quadrifariã, ſub re-
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lb
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tinaculis chelonia duo figũtur, trochlea funibus ſupra chelonia religatur:
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lb
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</
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<
s
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xml:space
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">ſub trochlea regula longa circiter pedes duos, lata digitos ſex, craſſa qua
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lb
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tuor ſupponitur. </
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<
s
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xml:space
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">Trochleæ ternos ordines orbiculorum in latitudinẽ@ha-
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lb
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bentes collocantur, itatres ductarij funes in ſummo machinæ religãtur. </
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Deinde referuntur ad imã trochleã, & </
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<
s
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">traijciũtur ex interiore parte per
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eius orbiculos ſummos. </
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<
s
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xml:space
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">Deinde referuntur ad ſuperiorem trochleam, & </
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<
s
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xml:space
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traijciuntur à dexteriore parte in interiorẽ, per orbiculos imos. </
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<
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xml:space
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">Cum de-
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lb
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ſcenderint ad imũ ex interiore parte, et per ſecundos orbiculos traducũ-
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tur in exteriorẽ, & </
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<
s
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xml:space
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">referuntur ad ſummũ ad orbiculos ſecundos traie-
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ctiredeunt ad imũ, ex imo referũtur ad caput, & </
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<
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xml:space
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">traiecti per ſummos, re
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deunt ad machinãimam. </
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<
s
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xml:space
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">In radice autẽ machinæ collocatur tertia troch-
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lea. </
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<
s
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xml:space
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">Eam autẽ Græci ἐϖάγοντα, noſtri artemonã appellant. </
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<
s
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xml:space
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">Ea trochlea
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religatur ad machinæ radicem hebens orbiculos tres, per quos traiecti fu
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nes traduntur hominibus ad ducendum. </
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<
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xml:space
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">Ita tres ordines hominum ducen
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tes, ſine ergata, celeriter onus ad ſummũ perducũt. </
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<
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xml:space
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">Hoc genus machinæ
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polyſp
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aſton appellatur, quod multis orbiculorum circuitionibus, & </
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<
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litatem ſummam præſtat, & </
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<
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">celeritatem. </
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<
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xml:space
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">Vna autem ſtatutio tigni hanc
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habet utilitatem, quòd (ante) quantum uelit ad dextra ac ſiniſtra, adlate-
<
lb
/>
ra declinando onus deponere poteſt.</
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