Bélidor, Bernard Forest de, La science des ingenieurs dans la conduite des travaux de fortification et d' architecture civile

Table of Notes

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              <pb o="39" file="0585" n="635" rhead="LIV. VI. DE LA MANIERE DE FAIRE LES DEVIS."/>
            entre-toiſes, chaînes, ſerrures, & </s>
            <s xml:id="echoid-s12815" xml:space="preserve">ferrures néceſſaires, le tout bien
              <lb/>
            arrêté & </s>
            <s xml:id="echoid-s12816" xml:space="preserve">attaché avec boulons, vis, & </s>
            <s xml:id="echoid-s12817" xml:space="preserve">écrou proprement enchaſſés
              <lb/>
            & </s>
            <s xml:id="echoid-s12818" xml:space="preserve">mis en œuvre conformement aux deſſeins qui en ſeront donnés.
              <lb/>
            </s>
            <s xml:id="echoid-s12819" xml:space="preserve">Obſervant en general de donner vingt-ſept pieds de longueur aux
              <lb/>
            fleches ſur douze & </s>
            <s xml:id="echoid-s12820" xml:space="preserve">quatorze pouces de groſſeur par le gros bout,
              <lb/>
            & </s>
            <s xml:id="echoid-s12821" xml:space="preserve">neuf à dix par le petit; </s>
            <s xml:id="echoid-s12822" xml:space="preserve">reglant au ſurplus leurs aſſemblages ſe-
              <lb/>
            lon les calibres néceſſaires pour lever le marche-pied de ces ponts,
              <lb/>
            dont il n’y doit avoir que le chaſſis de bois de chêne, & </s>
            <s xml:id="echoid-s12823" xml:space="preserve">le reſte de
              <lb/>
            bois de ſapin pour être plus leger & </s>
            <s xml:id="echoid-s12824" xml:space="preserve">plus facile à lever & </s>
            <s xml:id="echoid-s12825" xml:space="preserve">à mouvoir.</s>
            <s xml:id="echoid-s12826" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s12827" xml:space="preserve">Les ponts de communication des contregardes aux tenailles ſe-
              <lb/>
              <note position="right" xlink:label="note-0585-01" xlink:href="note-0585-01a" xml:space="preserve">Ponts de
                <lb/>
              communi-
                <lb/>
              cation des
                <lb/>
              contregar-
                <lb/>
              des aux te-
                <lb/>
              nailles.</note>
            ront plus legers que les précedens, & </s>
            <s xml:id="echoid-s12828" xml:space="preserve">conſiſteront ſeulement en
              <lb/>
            trois fermes eſpacées à dix pieds neuf pouces de diſtance les unes
              <lb/>
            des autres de milieu en milieu, dont chacune ſera compoſée d’un
              <lb/>
            ſeüil, d’un chapeau, de deux montans, & </s>
            <s xml:id="echoid-s12829" xml:space="preserve">des liens néceſſaires. </s>
            <s xml:id="echoid-s12830" xml:space="preserve">Les
              <lb/>
            ſeüils auront dix pieds onze pouces de long ſur ſept à huit pouces
              <lb/>
            de gros; </s>
            <s xml:id="echoid-s12831" xml:space="preserve">les poteaux ſept pieds cinq pouces de longueur entre ſeüil
              <lb/>
            & </s>
            <s xml:id="echoid-s12832" xml:space="preserve">chapeau, ſur ſept à ſept de groſſeur; </s>
            <s xml:id="echoid-s12833" xml:space="preserve">les chapeaux ſix pieds trois
              <lb/>
            pouces de long ſur ſept à ſept; </s>
            <s xml:id="echoid-s12834" xml:space="preserve">les liens trois pieds ſur ſix à ſix;
              <lb/>
            </s>
            <s xml:id="echoid-s12835" xml:space="preserve">les poutrelles vingt-quatre pieds & </s>
            <s xml:id="echoid-s12836" xml:space="preserve">demi ſur ſix à ſept, & </s>
            <s xml:id="echoid-s12837" xml:space="preserve">les ma-
              <lb/>
            driers du plancher quatre pouces d’épaiſſeur. </s>
            <s xml:id="echoid-s12838" xml:space="preserve">Leſdites fermes ſe-
              <lb/>
            ront auſſi poſées ſur un maſſif de maçonnerie, & </s>
            <s xml:id="echoid-s12839" xml:space="preserve">le pont-levis ſera
              <lb/>
            de la grandeur de l’ouverture de la porte du ſouterrain avec des
              <lb/>
            groſſeurs proportionnées.</s>
            <s xml:id="echoid-s12840" xml:space="preserve"/>
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        </div>
        <div xml:id="echoid-div655" type="section" level="1" n="163">
          <head xml:id="echoid-head380" xml:space="preserve">
            <emph style="sc">Guerites</emph>
          .</head>
          <p>
            <s xml:id="echoid-s12841" xml:space="preserve">Les guerites de pierre de taille ſe feront à chaque angle flanqué
              <lb/>
              <note position="right" xlink:label="note-0585-02" xlink:href="note-0585-02a" xml:space="preserve">Guerites
                <lb/>
              de pierre de
                <lb/>
              taille.</note>
            des Tours baſtionnées, de même qu’au milieu de chaque courtine,
              <lb/>
            ſeront de figure pentagonale, & </s>
            <s xml:id="echoid-s12842" xml:space="preserve">auront quatre pieds & </s>
            <s xml:id="echoid-s12843" xml:space="preserve">demi de
              <lb/>
            diametre dans œuvre, & </s>
            <s xml:id="echoid-s12844" xml:space="preserve">huit pouces d’épaiſſeur de parpin. </s>
            <s xml:id="echoid-s12845" xml:space="preserve">On pra-
              <lb/>
            tiquera à leur entrée une porte de deux pieds de largeur ſur ſix de
              <lb/>
            hauteur, & </s>
            <s xml:id="echoid-s12846" xml:space="preserve">à chacune de leurs faces un petit creneau de deux
              <lb/>
            pieds de hauteur & </s>
            <s xml:id="echoid-s12847" xml:space="preserve">de ſix pouces de largeur dans le milieu de ſon
              <lb/>
            épaiſſeur, faiſant dedans & </s>
            <s xml:id="echoid-s12848" xml:space="preserve">dehors un ébraſement de trois pouces
              <lb/>
            de chaque côté de ce creneau. </s>
            <s xml:id="echoid-s12849" xml:space="preserve">On obſervera d’ailleurs tous les pan-
              <lb/>
            neaux, boſſages, cordons, & </s>
            <s xml:id="echoid-s12850" xml:space="preserve">ornemens qui ſont marqués dans le
              <lb/>
            deſſein. </s>
            <s xml:id="echoid-s12851" xml:space="preserve">Ces guerites ſeront poſées ſur un cul de lampe auſſi de pierres
              <lb/>
            de taille, dans la face duquel ſeront proprement ſculptées les Ar-
              <lb/>
            mes du Roy, puis elles ſeront ſurmontées d’une voûte en dôme
              <lb/>
            taillées & </s>
            <s xml:id="echoid-s12852" xml:space="preserve">poſées à joints recouverts par aſſiſes égales, bien travaillées
              <lb/>
            & </s>
            <s xml:id="echoid-s12853" xml:space="preserve">miſes en mortier de ciment. </s>
            <s xml:id="echoid-s12854" xml:space="preserve">Au deſſus du dôme ſera élevée une </s>
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