Vitruvius Pollio, I dieci libri dell?architettura, 1567

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                <p type="head">
                  <s id="s.008107">
                    <emph type="italics"/>
                  Delle machinationi trattorie de i ſacrï tempÿ, & delle
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                  opere publiche. </s>
                  <s id="s.008108">Cap. II.
                    <emph.end type="italics"/>
                  </s>
                </p>
                <p type="main">
                  <s id="s.008109">Primamente ordineremo quelle coſe, che ne i ſacri Tempij, & alla perfettione
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                  delle opere publiche ſi apparecchiano: lequali a queſto modo ſi fanno. </s>
                  <s id="s.008110">D riz
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                  zanſi tre trauicelli ſecondo la grandezza de i peſi. </s>
                  <s id="s.008111">queſti dalle teſte di ſopra
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                  congiunti da un pirone, & da baſſo allargati ſi drizzano poſte le funi dalle te­
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                  ſte, & con quelle atorno diſpoſte ſi tengono dritti. </s>
                  <s id="s.008112">legaſi nella ſommicà una taglia det­
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                  ta da alcuni recamo. </s>
                  <s id="s.008113">nella taglia ſono due rotelle, che ne i loro pernuzzi ſi uolgono: per
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                  la rotella di ſopra ſi fa paſſar il menale, queſta fune dapoi ſi manda a baſſo, & ſi fa andar a
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                  torno la rotella della taglia inferiore, & ſi riporta alla rotella di ſotto della taglia ſuperio­
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                  re, & coſi diſcende alla inferiore, & nel ſuo buco ſi lega il capo della fune, l'altro capo
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                  dellaquale è riportato tra i piedi della machina: & ne i pianuzzi quadrati delle traui di die­
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                  tro, la doue ſon allargati, ſi ficcano l'orecchie, o manichi detti chelonia, ne i quali ſi met­
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                  teno i capi de i molinelli, accioche con facilità que perni ſi uoltino. </s>
                  <s id="s.008114">Ma que molinelli
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                  hanno preſſo i capi loro i buchi temprati in modo, che in eſsi poſſono accommodarſi le
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                  ſtanghe: ma alla taglia di ſotto ſi legano gli uncini di ferro, i denti de i quali s'accom­
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                  modano ne i ſaſsi forati. </s>
                  <s id="s.008115">quando adunque la fune ha il capo legato al molinello, & che le
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                  ſtanghe menando quello lo uoltano, queſto effetto ne naſce, che la fune uolgendoſi a
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                  torno il molinello ſi ſtende, & coſi inalza i peſi all'altezza, che ſi uuole, & a que luoghi, do­
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                  ue ſi hanno a collocare. </s>
                </p>
                <p type="main">
                  <s id="s.008116">
                    <emph type="italics"/>
                  Qui Vitru. ci dimoſtra come ſi fanno gli ſtrumenti da leuar i peſi, & porli doue fa biſo­
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                  gno nelle fabriche de i Tempii, & delle opere publiche. </s>
                  <s id="s.008117">& prima ci parla della taglia, che
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                  egli troclea, o ricamo dimanda: il piu ſemplice modo è drizzare una caualletta, o gauerna che
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                  ſi dica, di traui, o antennelle, per uſare i nomi del noſtro Arſenale, accio meglio ſi pigli la
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                  pratica di tai coſe. </s>
                  <s id="s.008118">Queſta gauerna ſi fa pigliandoſi tre traui della groſſezza, che puo ba­
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                  ſtare a ſoſtener i peſi. </s>
                  <s id="s.008119">queſti ſi drizzano, & diſopra ſi legano inſieme con pironi, che fibu­
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                  le da Vitru. detti ſono, & i piedi di ſotto s'allargano: Piglianſi poi due taglie, che cuſelle
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                  altroue ſi chiamano, la forma delle quali per la figura ſi manifeſta, che ſono alcune girelle,
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                  che orbiculi da Vitru. raggi da noi dette ſono, che nel taglio dritto la loro circonferenza
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                  hanno un canale, nelquale s'inueſte il menale, da Vitru. ductario fune chiamato. </s>
                  <s id="s.008120">Le girelle, o
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                  raggi hanno nel mezo un buco, doue ui entra un pernuzzo, che aſſiculo da Vitru. marſione ſi
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                  chiama da noi: queſti trapaſſa per lo raggio, che è poſto fra un legno tagliato, & cauato, &
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                  ſopra quello ſi uolge. </s>
                  <s id="s.008121">Attacaſi adunque una taglia alla parte di ſopra, & l'altra ſi ſerua per
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                  porla di ſotto, & l'ordimento è tale. </s>
                  <s id="s.008122">Egliſi piglia la fune, & un capo di eſſa ſi tramette nel
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                  canale del raggio di ſopra, dapoi ſi cala al piu baſſo raggio della taglia di ſotto, & trapaſſa­
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                  to per lo ſuo canale, ſi riporta al raggio di ſotto della taglia ſuperiore, & fattolo paſſare, ſi ca­
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                  la nel raggio di ſopra della taglia inferiore, & iui ſi lega l altro capo della fune, che in abando­
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                  no ſi laſcia; o perche con le mani a forza tirato ſia, o ſi raccommanda ad un molinello, ilqua­
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                  le tra i piedi della gauerna, nelle orecchie, che Vitru. Chelonia, noi caſtignole, o gattelli
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                  chiamamo ſi uolge, con alcune ſtanghe, o manouelle, o pironi, che ſi dichino, che uectes da
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                  Vitru. dette ſono, che entrano nelle teſte del molinello. </s>
                  <s id="s.008123">i peſi ſi attaccano ad alcuni uncini, che
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                  noi ganzi chiamamo, & Vitru. forcipi li dimanda. </s>
                  <s id="s.008124">Queſti ſono alla taglia di ſotto attacca­
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                  ti, congiunti, come dimoſtra la figura A. & il reſto è chiaro per la figura B. doue è la taglia
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                  di ſopra, & per la figura C. doue è la caualletta, che ancho ponte da alcuni è detta, & alla
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                  figura. </s>
                  <s id="s.008125">D. doue è il molinello, & le ſorti de molinelli, argani, o naſpi, che ſuccule, & erga-
                    <emph.end type="italics"/>
                  </s>
                </p>
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          </chap>
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    </archimedes>
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