Agricola, Georgius, De re metallica, 1912/1950

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    <archimedes>
      <text>
        <body>
          <chap>
            <pb pagenum="370"/>
            <figure number="214"/>
            <p type="caption">
              <s>A—LEVER WHICH WHEN DEPRESSED BY MEANS OF A CAM COMPRESSES THE BELLOWS.
                <lb/>
              B—SLOTS THROUGH THE POSTS. C—BAR. D—IRON IMPLEMENT WITH A RECTANGULAR
                <lb/>
              LINK. E—IRON INSTRUMENT WITH ROUND RING. F—HANDLE OF BELLOWS. G—UPPER
                <lb/>
              POST. H—UPPER LEVER. I—BOX WITH EQUAL SIDES. K—BOX NARROW AT THE
                <lb/>
              BOTTOM. L—PEGS DRIVEN INTO THE UPPER LEVER.
                <lb/>
              one and a half palms thick. </s>
              <s>There are mortised into this longitudinal beam
                <lb/>
              the lower ends of upper posts three palms wide and two thick, which are six
                <lb/>
              feet two palms high, exclusive of their tenons. </s>
              <s>The upper ends of these
                <lb/>
              posts are mortised into an upper longitudinal beam, which lies close under
                <lb/>
              the rafters of the building; this upper longitudinal beam is two palms
                <lb/>
              wide and one thick. </s>
              <s>The upper posts have a slot cut out upward from a
                <lb/>
              point two feet from the bottom, and the slot is two feet high and six digits
                <lb/>
              wide. </s>
              <s>Through these upper posts a round hole is bored from one side to
                <lb/>
              the other at a point three feet one palm from the bottom, and a small iron axle
                <lb/>
              penetrates through the hole and is fastened there. </s>
              <s>Around this small iron
                <lb/>
              axle turns the second lever when it is depressed and raised. </s>
              <s>This lever is
                <lb/>
              eight feet long, and its other end is three digits wider than the rest of the
                <lb/>
              lever; at this widest point is a hole two digits wide and three high, in which
                <lb/>
              is fixed an iron ring, to which is tied the rope I have mentioned; it is five
                <lb/>
              palms long, its upper loop is two palms and as many digits wide, and the </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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