Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

Table of figures

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              <s id="N1497A">
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              bina circa
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                <lb/>
                <expan abbr="vtramq.">vtramque</expan>
              ex­
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              tremitatem
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                <expan abbr="habẽs">habens</expan>
              fora­
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              mina, qui­
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              bus toti­
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              dem collo­
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              pes, ſeu fu­
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              ſtes infigun­
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              tur, vt faci­
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              liùs iugum ipſum eorum beneficio cum opus fuerit conuer­
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              tatur, vt præ ſefert ſubſtrata figura. <</s>
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              <s id="N149A8">Sucula item quamuis alia poſſit ſignificare, hic tamen
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              machinam ſignificat tractorij generis, quæ ex tereti ligno,
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              aut lignorum compagine conſtat, adiuncto axe ſuffulta
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              æquidiſtante à plano horizontis, duobus, vel pluribus col­
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              lopibus pari longitudine vtrinque immobiliter adſtantibus
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              tanquam rotæ radijs circa modiolum, quibus admota ma­
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              nu, ſucula ipſa circa proprium axem obuoluitur,
                <expan abbr="funeq.">funeque</expan>
              cir­
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              cumducto, pondera ſubleuat, vt præ oculis hic eſt videre
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              in eius figura. </s>
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            <p id="N149BF" type="main">
              <s id="N149C1">Quærit igitur Ari­
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              ſtoteles cur ſi lon­
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              giores fuerint collo­
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              pes facilius iugum
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              circumagatur, quam
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              ſi minores, ac bre­
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              uiores extiterint.
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              </s>
              <s id="N149D7">
                <expan abbr="Itemq.">Itemque</expan>
              cur gracilio­
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              res ſucculæ facilius
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              pariter ab
                <expan abbr="eadẽ">eadem</expan>
              po­
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              tentia circumuoluantur, quàm craſſiores. </s>
              <s id="N149E7">Vtriuſque ſubin­
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              de cauſam eſſe inquit, quod in vtraque machina quilibet
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              collops tanquam vectis ſe habet, cuius
                <expan abbr="centrũ">centrum</expan>
              , ac fulcimen­
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              tum eſt in medio iugi, vel ſuculæ, ſiue in intimo axe coniun­
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              cto, aut ſaltem in ipſis concepto: potentia verò in extremi-</s>
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