Agricola, Georg, De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ..., 1556

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          <chap id="N10018">
            <p id="N1BD18" type="main">
              <s id="N1BF2C">
                <pb pagenum="370" xlink:href="001/01/380.jpg"/>
              decim: à quo primus, qui eſt ad flumen, diſtet pedibus quindecim, poſtre­
                <lb/>
              mus decem & nouem: uterque longus ſit pedes ſex & triginta, altus quatuor­
                <lb/>
              decim: ſed ex primi muri capite murus
                <expan abbr="trãſuerſus">tranſuerſus</expan>
              pertineat ad caput poſtre­
                <lb/>
              mi muri: deinde poſt pedes quindecim ex eodem muro primò alter murus
                <lb/>
              tranſuerſus ductus ſit ad caput muri medij. </s>
              <s id="N1BF4F">In hoc ſpacio, quod eſt inter du­
                <lb/>
              os iſtos muros tranſuerſos, collocentur pila, quibus uenæ & alia ad eas ex­
                <lb/>
              coquendas neceſſaria frangantur: à primi quoque muri poſteriore capite ter
                <lb/>
              tius murus tranſuerſus perductus ſit ad alterum caput muri medij, & ab eo­
                <lb/>
              dem ad caput muri poſtremi. </s>
              <s id="N1BF5A">Spacium autem, quod eſt inter ſecundum &
                <lb/>
              tertium murum tranſuerſum, & inter poſtremum & medium murum lon­
                <lb/>
              gum, contineat ſecundam fornacem, in qua plumbum ſeparatur ab auro uel
                <lb/>
              argento, cuius camini paries rectus ſtatuatur ſuper
                <expan abbr="mediũ">medium</expan>
                <expan abbr="murũ">murum</expan>
              , obliquus
                <lb/>
              ſuper trabem, quæ ex ſecundo muro tranſuerſo pertineat ad tertium: ea ita
                <lb/>
              locata ſit, ut pedibus tredecim diſtet à medio muro longo, quatuor à poſtre
                <lb/>
              mo: ipſa uerò craſſa & lata ſit pedes duos: à terra ſurſum uerſus ad
                <expan abbr="trabẽ">trabem</expan>
                <expan abbr="hãc">hanc</expan>
                <lb/>
              longam ſint pedes duodecim. </s>
              <s id="N1BF7B">Quinetiam ne paries obliquus incidat in re­
                <lb/>
              ctum: caueatur partim crebris bacillis ferreis, partim raris tignis luto obdu­
                <lb/>
              ctis, quæ utraque è tignis parietis obliqui ad tigna recti
                <expan abbr="pertineãt">pertineant</expan>
              . </s>
              <s id="N1BF86">Poſtremò
                <lb/>
              tectum eodem modo ſe habeat, quo
                <expan abbr="tectũ">tectum</expan>
              officinæ, in qua uenæ excoquun
                <lb/>
              tur: ſed in ſpacio, quod eſt inter medium & primum murum longum, & in­
                <lb/>
              ter primum & tertium murum tranſuerſum ſint folles, machina, quæ eos de
                <lb/>
              primit, organum, quod eoſdem diducit. </s>
              <s id="N1BF95">Vnum etiam tympanum, quod eſt
                <lb/>
              ad axem rotæ, habens fuſos moueat tympanum dentatum axis, cuius den­
                <lb/>
              tes longi follium tigilla deprimunt, & tympanum dentatum axis, cuius den
                <lb/>
              tes longi, pilorum dentes longos attollunt: ſed
                <expan abbr="cõtrario">contrario</expan>
              modo: ut ſi dentes
                <lb/>
              deprimentes tigilla follium uoluantur à ſeptentrione ad meridiem: contrà
                <lb/>
              dentes longi attollentes
                <expan abbr="pilorũ">pilorum</expan>
              dentes longos uerſentur à meridie in ſepten
                <lb/>
              trionem. </s>
              <s id="N1BFAC">Verùm plumbum ab auro uel argento ſecernitur in hac
                <expan abbr="ſecũda">ſecunda</expan>
                <lb/>
              fornace: cuius ſtructura conſtat ex ſaxis quadrangulis, ex duobus muris in­
                <lb/>
              terioribus, quorum alter
                <expan abbr="alterũ">alterum</expan>
              tranſuerſus ſecat, ex orbe, ex operculo. </s>
              <s id="N1BFBB">Ipſe
                <lb/>
              uerò catinus conficitur ex puluere terreno & cinere: ſed primò de ſtructura
                <lb/>
              atque adeo de ſaxis
                <expan abbr="quadrãgulis">quadrangulis</expan>
              dicam: ea ſint alta pedes quatuor, & palmos
                <lb/>
              tres, craſſa pedem: ab imo ſurſum uerſus ad pedes duos, & palmos tres, inte
                <lb/>
              riore & ſuprema parte ad
                <expan abbr="palmũ">palmum</expan>
              prorſus exciſa ſint, ut ſaxeus orbis in ipſis
                <lb/>
              iacere poſſit. </s>
              <s id="N1BFD0">Solent
                <expan abbr="autẽ">autem</expan>
              plerunque eſſe numero quatuordecim: atque lata ex­
                <lb/>
              teriore parte pedem &
                <expan abbr="palmũ">palmum</expan>
              , interiore anguſtiora: quod interior circulus
                <lb/>
              multo ſit anguſtior exteriore. </s>
              <s id="N1BFDF">Quod ſi latiora fuerint, minus multa eſſe ne­
                <lb/>
              ceſſe eſt: ſi anguſtiora, plura. </s>
              <s id="N1BFE4">In terram fodiantur altitudine pedis & palmi:
                <lb/>
              ſuperius ſemper bina quæque proxima fibula ferrea connectantur: cuius cu­
                <lb/>
              ſpides in eorum foramina includantur, & in eadem plumbum liquidum in
                <lb/>
              fundatur: ſed ea ſtructura ſaxea habeat ſpiritalia foramina ſex à terra, ſurſum
                <lb/>
              uerſus ad pedem: atque ita ab ima ſaxorum parte ad pedes duos & palmum:
                <lb/>
              quorum quodque ſit inter bina ſaxa altum palmos duos, latum
                <expan abbr="palmũ">palmum</expan>
              & di­
                <lb/>
              gitos tres. </s>
              <s id="N1BFF7">Vnum ſit à dextro latere inter murum, qui murum
                <expan abbr="principalẽ">principalem</expan>
              ab
                <lb/>
              igni tuetur, &
                <expan abbr="canaliculũ">canaliculum</expan>
              , per quem ſpuma
                <expan abbr="argẽti">argenti</expan>
              ex fornacis catino effluit. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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