Boyle, Robert, New experiments physico-mechanicall, touching the spring of the air and its effects, 1660

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="013/01/053.jpg" pagenum="13"/>
              hollow Cylindre, a Sucker, a handle to
                <lb/>
              move that Sucker, and a Valve. </s>
            </p>
            <p type="main">
              <s>The Cylindre was (by a pattern) caſt
                <lb/>
              of braſs; it is in length about 14 inches,
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              thick enough to be very ſtrong, notwith­
                <lb/>
              ſtanding the Cylindrical cavity left with­
                <lb/>
              in it; this cavity is about three inches
                <lb/>
              Diameter, and makes as exact a Cylin­
                <lb/>
              dre as the Artificer was able to bore.
                <lb/>
              </s>
              <s>This hollow Cylindre is fitted with a ſuck­
                <lb/>
              er, (4455) conſiſting of two parts, the
                <lb/>
              one (44) ſomewhat leſs in Diameter then
                <lb/>
              the cavity of the Cylindre, upon which
                <lb/>
              is nail'd a good thick piece of tan'd ſhoe
                <lb/>
              Leather, which will go ſo cloſe to the
                <lb/>
              Cylindre, that it will need to be very
                <lb/>
              forcibly knock'd and ram'd in, if at any
                <lb/>
              time it be taken out, which is therefore
                <lb/>
              done, that it may the more exactly hin­
                <lb/>
              der the Air from inſinuating it ſelf be­
                <lb/>
              twixt it and the ſides of the Cylindre
                <lb/>
              whereon it is to move. </s>
            </p>
            <p type="main">
              <s>To the midſt of this former part of the
                <lb/>
              Sucker is ſtrongly faſtned the other,
                <lb/>
              namely a thick and narrow plate of Iron,
                <lb/>
              (55) ſomewhat longer then the Cylindre,
                <lb/>
              one of whoſe edges is ſmooth, but at the
                <lb/>
              other edge it is indented (as I may ſo
                <lb/>
              ſpeak) with a row of teeth delineated in </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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