Vitruvius, De architectura libri decem, 1567

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            <p style="it">
              <s xml:id="echoid-s25617" xml:space="preserve">
                <pb o="338" file="514.01.370" n="370" rhead="LIBER"/>
              tur. </s>
              <s xml:id="echoid-s25618" xml:space="preserve">quoniam cum ſunis alter circa tympanum inuoluatur, & </s>
              <s xml:id="echoid-s25619" xml:space="preserve">ad ergatam referatur, conſequitur, ut inuolu-
                <lb/>
              tus cum ſit, tympani, & </s>
              <s xml:id="echoid-s25620" xml:space="preserve">axis uerſatione, funes obuoluti circa axem pariter extendantur: </s>
              <s xml:id="echoid-s25621" xml:space="preserve">& </s>
              <s xml:id="echoid-s25622" xml:space="preserve">ita leniter ma-
                <lb/>
              ximas moles extollunt. </s>
              <s xml:id="echoid-s25623" xml:space="preserve">Quod ſi tympanum maius eſſet, ergata opus non eſſet. </s>
              <s xml:id="echoid-s25624" xml:space="preserve">nam homines tympanum cal-
                <lb/>
              cantes, magna onera leuarent, nam ea ratio est diametri rotæ ad diametrum axis, quæ eſt ponderis quod le-
                <lb/>
              uatur ad preſſionem, & </s>
              <s xml:id="echoid-s25625" xml:space="preserve">uires hominum calcantium. </s>
              <s xml:id="echoid-s25626" xml:space="preserve">Ideo uectes ergatarum longi eſſe debent, ut iuxta pro-
                <lb/>
              portionem longitudinis ſingula capita oneris pondus imminuant, unde ſi duplicentur ad dimidium onus dedu-
                <lb/>
              cent, quatuor ad quartam partem, ita ut ſi uecte cubitali quatuor homines centum pondo moueant, quatuor
                <lb/>
              uectibus ſenum cubitorum, ijdem duo millia & </s>
              <s xml:id="echoid-s25627" xml:space="preserve">400. </s>
              <s xml:id="echoid-s25628" xml:space="preserve">pondo ſubleuabunt, dempto uectium pondere, quod
                <lb/>
              omnino parum est. </s>
              <s xml:id="echoid-s25629" xml:space="preserve">Quod uero αμφιρευσιν, & </s>
              <s xml:id="echoid-s25630" xml:space="preserve">ωιτρόαν legitur, alij ex uetustis condicibus legunt αμφίεληραν & </s>
              <s xml:id="echoid-s25631" xml:space="preserve">***ί-
                <lb/>
                <note position="left" xlink:label="note-514.01.370-01" xlink:href="note-514.01.370-01a" xml:space="preserve">10</note>
              θεσιν. </s>
              <s xml:id="echoid-s25632" xml:space="preserve">ut ijs nominibus ſignificent tympanum, quod rudente inuluto tanquam ueſtiatur, apud Theonem inſpi-
                <lb/>
              ritblibus in mentione eiuſdem tympani αμφιελίκτραν uidemus, cæterum non ſine ratione duo hæc nomina a
                <lb/>
              Vitruuio poſita ſunt. </s>
              <s xml:id="echoid-s25633" xml:space="preserve">nam particulæ αμφί & </s>
              <s xml:id="echoid-s25634" xml:space="preserve">ώζί & </s>
              <s xml:id="echoid-s25635" xml:space="preserve">***ι rem innuunt conſiderandam.</s>
              <s xml:id="echoid-s25636" xml:space="preserve"/>
            </p>
            <figure number="166">
              <caption xml:id="echoid-caption48" style="it" xml:space="preserve">Trochleæ cum tympano.</caption>
            </figure>
            <note position="left" xml:space="preserve">20</note>
            <note position="left" xml:space="preserve">30</note>
            <note position="left" xml:space="preserve">40</note>
          </div>
          <div xml:id="echoid-div810" type="section" level="2" n="150">
            <head xml:id="echoid-head158" style="it" xml:space="preserve">Aliud machinæ tractoriæ genus. # Cap. V.</head>
            <note position="left" xml:space="preserve">50</note>
            <p>
              <s xml:id="echoid-s25637" xml:space="preserve">
                <emph style="sc">ESt</emph>
              & </s>
              <s xml:id="echoid-s25638" xml:space="preserve">aliud genus machinæ ſatis artificioſum, & </s>
              <s xml:id="echoid-s25639" xml:space="preserve">ad uſum celeritatis expeditum: </s>
              <s xml:id="echoid-s25640" xml:space="preserve">ſed in eo
                <lb/>
              dare operam non poſſunt niſi periti. </s>
              <s xml:id="echoid-s25641" xml:space="preserve">Eſt enim tignum, quod erigitur, & </s>
              <s xml:id="echoid-s25642" xml:space="preserve">diſtinetur reti-
                <lb/>
              naculis quadrifariam, ſub retinaculis chelonia duo figuntur, trochlea funibus ſupra che-
                <lb/>
              lonia religatur: </s>
              <s xml:id="echoid-s25643" xml:space="preserve">ſub trochlea regula longa circiter pedes duos, lata digitos ſex, craſſa qua-
                <lb/>
              tuor, ſupponitur. </s>
              <s xml:id="echoid-s25644" xml:space="preserve">Trochleæ ternos ordines orbiculorum in latitudinem habentes collocantur, ita
                <lb/>
              tres ductarij funes in ſummo machinæ religantur. </s>
              <s xml:id="echoid-s25645" xml:space="preserve">Deinde referuntur ad imam trochleam, & </s>
              <s xml:id="echoid-s25646" xml:space="preserve">traij-
                <lb/>
              ciuntur ex inferiore parte per eius orbiculos ſummos. </s>
              <s xml:id="echoid-s25647" xml:space="preserve">Deinde referuntur ad ſuperiorem trochleam, & </s>
              <s xml:id="echoid-s25648" xml:space="preserve">
                <lb/>
              traijciuntur ab exteriore parte, & </s>
              <s xml:id="echoid-s25649" xml:space="preserve">per ſecundos orbiculos tradueuntur in exteriorem, & </s>
              <s xml:id="echoid-s25650" xml:space="preserve">referuntur ad
                <lb/>
                <note position="left" xlink:label="note-514.01.370-06" xlink:href="note-514.01.370-06a" xml:space="preserve">60</note>
              </s>
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