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

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          <chap id="N10018">
            <p id="N14643" type="main">
              <s id="N1466D">
                <pb pagenum="178" xlink:href="001/01/188.jpg"/>
              quin etiam ferreum
                <expan abbr="bacillũ">bacillum</expan>
              , in oris ſpeciem formatum, in infimo prioris par
                <lb/>
              tis bacillo includitur: quod os æquè ac lactericiæ fornaculæ, altum eſt pal­
                <lb/>
              mum, latum quinque digitos. </s>
              <s id="N14687">Tum prius infimi ordinis bacillum tranſuerſa­
                <lb/>
              rium ad
                <expan abbr="utrũque">utrunque</expan>
              oris latus perforatum eſt, ſimilique modo poſterius: per quæ
                <lb/>
              foramina penetrant duo baccilla ferrea, quæ cùm ipſa, tum quatuor infi­
                <lb/>
              mi ordinis bacilla ſuſtinent bracteam
                <expan abbr="ferreã">ferream</expan>
              luto oblitam: cuius etiam pars
                <lb/>
              è fornacula extat: inferiora quoque fornaculæ latera ab infimo bacillorum or
                <lb/>
              dine uſque ad ſupremum bracteis ferreis teguntur: quæ filis ferreis
                <expan abbr="affigũtur">affiguntur</expan>
                <lb/>
              ad bacilla, lutoque oblinuntur, ut quàm diutiſſime uim ignium ferre poſſint. </s>
              <s id="N146A2">
                <lb/>
              At fictilem fornaculam ex terra pingui & ſpiſſa & mediocri, quod ad molli
                <lb/>
              tudinem et duriciem attinet, fingere conuenit. </s>
              <s id="N146A8">Ea uerò ferè eandem habet al
                <lb/>
              titudinem quam ferrea: eiusque pes conſtat ex duabus tabulis fictilibus, lon­
                <lb/>
              gis pedem & tres palmos, latis pedem & palmum. </s>
              <s id="N146AF">Vtriuſque
                <expan abbr="aũt">aut</expan>
              tabulæ par­
                <lb/>
              tis prioris utrunque latus ſic ſenſim eſt reciſum ad palmi
                <expan abbr="longitudinẽ">longitudinem</expan>
              , ut tan­
                <lb/>
              tummodo latum fiat ſemipedem & digitum: quæ pars eminet è fornacula. </s>
              <s id="N146BE">
                <lb/>
              Sed tabulæ ſunt craſſæ ferè ſeſquidigitum: ſimiliter fictiles parietes, qui ad
                <lb/>
              digitum tranſuerſum à margine
                <expan abbr="ſtatuũtur">ſtatuuntur</expan>
              ſuper inferiorem tabulam, quique
                <lb/>
              ſuperiorem eodem modo ſuſtinent. </s>
              <s id="N146CA">Sunt uerò parietes alti tres digitos, ha­
                <lb/>
              bentes foramina quatuor, quæ ſingula alta ſunt circiter ternos digitos: ſed
                <lb/>
              poſterioris quidem partis & utriuſque lateris lata ſunt quinque digitos: prio­
                <lb/>
              ris uerò latum eſt ſeſquipalmum, ut eò
                <expan abbr="cõmodius">commodius</expan>
              in ipſum pedem, cùm
                <expan abbr="cõ­caluerit">con­
                  <lb/>
                caluerit</expan>
              imponi poſſint catilli cinerei nuper facti, ibique exiccari. </s>
              <s id="N146DD">
                <expan abbr="Verũ">Verum</expan>
              utraque
                <lb/>
              tabula ideo exteriori parte filo ferreo, in
                <expan abbr="eã">eam</expan>
                <expan abbr="imp̃ſſo">impreſſo</expan>
              , uincitur, ut minus
                <expan abbr="frãga­tur">franga­
                  <lb/>
                tur</expan>
              : utraque
                <expan abbr="etiã">etiam</expan>
                <expan abbr="nõ">non</expan>
              aliter ac bractea ferrea, iccirco tria habet foramina longa
                <lb/>
              tres digitos, lata digitum, ut cùm ſuperior propter ignium uim, aut propter
                <lb/>
              aliam cauſam uitium fecerit, inferior pede inuerſo in eius
                <expan abbr="locũ">locum</expan>
              ſuccedat: per
                <lb/>
              ea foramina & cinis ex prunis, ut dixi, decidit, & fornaculæ inſpiratur aura
                <lb/>
              penetrans in cameram per parietum foramina. </s>
              <s id="N14707">Ipſa uerò fornacula quadran
                <lb/>
              gula eſt: inferiori eius parte intus lata palmos tres & digitum unum, longa
                <lb/>
              palmos tres & totidem digitos: ſuperiori lata palmos duos & digitos tres,
                <lb/>
              ut etiam ipſa fiat anguſtior: Alta autem eſt pedem. </s>
              <s id="N14710">Poſterior
                <expan abbr="etiã">etiam</expan>
              eius pars
                <lb/>
              inferius in medio exciſa eſt in modum ſemicirculi, qui ſit ſemidigitum altus:
                <lb/>
              pari modo latus utrunque: atque non ſecus ac fornacula in priori eius parte ha
                <lb/>
              bet os ſuperius rotundum, altum palmum, latum palmum &
                <expan abbr="digitũ">digitum</expan>
              : cuius
                <lb/>
              fores feneſtrati etiam ex terra ſunt, habentque anſam. </s>
              <s id="N14723">Quin operculum forna
                <lb/>
              culæ ex terra factum ſuam habet anſam, filoque ferreo uincitur: tum ipſius for
                <lb/>
              naculæ exteriorem
                <expan abbr="partẽ">partem</expan>
              utranque & latus utrunque fila ferrea
                <expan abbr="uinciũt">uinciunt</expan>
              : ex qui­
                <lb/>
              bus impreſſis triangulorum formæ ſolent effici. </s>
              <s id="N14734">Fornaculæ
                <expan abbr="aũt">aut</expan>
              latericiæ
                <lb/>
              manent ac fixæ ſunt, fictiles uerò & ferreæ ex uno loco portantur ad
                <expan abbr="alterũ">alterum</expan>
              :
                <lb/>
              atque latericiæ citius parari poſſunt, ferreæ magis durant, fictiles ſunt aptio­
                <lb/>
              res. </s>
              <s id="N14745">Metallici præterea faciunt fornaculas temporarias hoc modo. </s>
              <s id="N14748">Late­
                <lb/>
              res tres ſupra focum ſtatuunt, utrinque unum, tertium à tergo: pars prior pa­
                <lb/>
              tet flatui: his lateribus imponunt bracteam ferream: cui rurſus tres lateres,
                <lb/>
              qui carbones arceant & contineant. </s>
              <s id="N14751">Sed loco fornacula alia ab alia differt,
                <lb/>
              quòd quædam in altiori collocetur, quædam in humiliori. </s>
              <s id="N14756">Ea uerò locatur </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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