Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 1: Opera mechanica

Table of Notes

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              <pb o="37" file="0063" n="64" rhead="HOROLOG. OSCILLATOR."/>
              <note position="right" xlink:label="note-0063-01" xlink:href="note-0063-01a" xml:space="preserve">
                <emph style="sc">Descri-</emph>
                <lb/>
                <emph style="sc">PTIO</emph>
                <emph style="sc">Ho-</emph>
                <lb/>
                <emph style="sc">ROLOGII</emph>
              .</note>
            ſecunda ſcrupula tranſitu ſuo oſtendent: </s>
            <s xml:id="echoid-s861" xml:space="preserve">atque ita omnia rectè
              <lb/>
            ſe habere manifeſtum erit. </s>
            <s xml:id="echoid-s862" xml:space="preserve">Pondus X in imo perpendiculo
              <lb/>
            trilibre eſt, plumbeum totum, vel ænea ſuperficie plumbum
              <lb/>
            continente. </s>
            <s xml:id="echoid-s863" xml:space="preserve">Nec tantum metalli gravitate ſed & </s>
            <s xml:id="echoid-s864" xml:space="preserve">figurâ in-
              <lb/>
            ſuper proſpiciendum (plurimi enim refert) ut quam mini-
              <lb/>
            mum occurſu aëris impedimentum ſentiat. </s>
            <s xml:id="echoid-s865" xml:space="preserve">Eoque in cylin-
              <lb/>
              <note position="right" xlink:label="note-0063-02" xlink:href="note-0063-02a" xml:space="preserve">TAB. II.
                <lb/>
              Fig. 3.</note>
            dri jacentis oblongi & </s>
            <s xml:id="echoid-s866" xml:space="preserve">utrinque præacuti formam fingitur,
              <lb/>
            qualis cernitur ad a ſchemate horologii minore. </s>
            <s xml:id="echoid-s867" xml:space="preserve">Quanquam
              <lb/>
            in his quæ ad navigationem parantur, forma lentis erectæ
              <lb/>
            aptior viſa eſt.</s>
            <s xml:id="echoid-s868" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s869" xml:space="preserve">Porro eodem ſchemate & </s>
            <s xml:id="echoid-s870" xml:space="preserve">ponderis alterius b, quo motus
              <lb/>
            horologii continuatur, ſuſpendendi ratio expreſſa eſt, quam,
              <lb/>
            incognitam prius, inveſtigare nobis neceſſe fuit, ne interim
              <lb/>
            dum ſurſum retrahitur pondus iſtud, ceſſaret vel impedire-
              <lb/>
            tur aliquatenus horologii curſus, quod hic omnino caven-
              <lb/>
            dum erat. </s>
            <s xml:id="echoid-s871" xml:space="preserve">Paratur itaque funis continuus atque in ſe rediens,
              <lb/>
            extremitatibus apte inter ſe connexis. </s>
            <s xml:id="echoid-s872" xml:space="preserve">Is primum orbiculum
              <lb/>
            rotæ infimæ conjunctum, qui in ſchemate majori notatus eſt
              <lb/>
            D, amplectitur; </s>
            <s xml:id="echoid-s873" xml:space="preserve">inde deſcendens, altera ſui parte trochleam
              <lb/>
            c, cui pondus b appenſum eſt, ſubit. </s>
            <s xml:id="echoid-s874" xml:space="preserve">Hinc ſuper orbicu-
              <lb/>
            lum d aſcendit, extrinſecus horologio affixum, qui ferreos
              <lb/>
            per circumferentiam aculeos habet, atque inſuper ſerratis
              <lb/>
            dentibus ita eſt aptatus ut volvatur tracto fune e; </s>
            <s xml:id="echoid-s875" xml:space="preserve">nequa-
              <lb/>
            quam vero in partem contrariam revolvi poſſit. </s>
            <s xml:id="echoid-s876" xml:space="preserve">Ab hoc or-
              <lb/>
            biculo deſcendit funis ad alteram trochleam f, cui pondus
              <lb/>
            exiguum g appenditur, quantum ſufficit continendo majori
              <lb/>
            b, ne aliter quam revoluto orbiculo deſcendat. </s>
            <s xml:id="echoid-s877" xml:space="preserve">Namque à
              <lb/>
            trochlea f rurſus ad ipſum orbiculum D, unde deſcenderat,
              <lb/>
            funis revertitur. </s>
            <s xml:id="echoid-s878" xml:space="preserve">Quibus ita ſe habentibus, manifeſtum eſt
              <lb/>
            ſemper pondus b dimidia ſui gravitate conari ut rotas horo-
              <lb/>
            logii circumagat, nec tunc quidem ceſſare cum manu fu-
              <lb/>
            nem e trahente aſcendere cogitur; </s>
            <s xml:id="echoid-s879" xml:space="preserve">adeoque horologii mo-
              <lb/>
            tum nusquam interrumpi, nec momentum temporis de-
              <lb/>
            perdi.</s>
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          </p>
          <p>
            <s xml:id="echoid-s881" xml:space="preserve">Gravitatis modus in pondere b definiri certo non poteſt,
              <lb/>
            ſed quo minor conſervando motui ſuffecerit, eo melius </s>
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