Weidler, Johann Friedrich, Jo. Friderici Weidleri Tractatus de machinis hydraulicis toto terrarum orbe maximis Marlyensi et Londinensi et aliis rarioribus similibus in quo mensurae prope ipsas machinas notatae describuntur, et de viribus earum luculenter disseritur

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        <div xml:id="echoid-div81" type="section" level="1" n="59">
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              <pb o="21" file="0137" n="142" rhead="GEOMETRIA SVBTERRANEA."/>
            cochleisque in quolibet ſitu in circulo horario figendis,
              <lb/>
            intra quas, laxatis cochleis, circulus horarius mobilis eſt.
              <lb/>
            </s>
            <s xml:id="echoid-s2467" xml:space="preserve">In centro circuli foramen fit, per quod funiculus duci
              <lb/>
            queat, et centrum ambit alius orbis mobilis unco praedi-
              <lb/>
            tus, cui alter funiculus annectitur.</s>
            <s xml:id="echoid-s2468" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div83" type="section" level="1" n="60">
          <head xml:id="echoid-head77" xml:space="preserve">SCHOLION I.</head>
          <p style="it">
            <s xml:id="echoid-s2469" xml:space="preserve">40. </s>
            <s xml:id="echoid-s2470" xml:space="preserve">Tales circuli horarii adhibentur, in ferrifodinis, ubi magnes
              <lb/>
            officium non facit, pro earum directionibus reperiundis.
              <lb/>
            </s>
            <s xml:id="echoid-s2471" xml:space="preserve">Debent autem duo tales circuli ad manus eſſe, pro menſione
              <lb/>
            inſtituenda.</s>
            <s xml:id="echoid-s2472" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div84" type="section" level="1" n="61">
          <head xml:id="echoid-head78" xml:space="preserve">SCHOLION II.</head>
          <p style="it">
            <s xml:id="echoid-s2473" xml:space="preserve">41. </s>
            <s xml:id="echoid-s2474" xml:space="preserve">His circulis horariis ſpeciatim accommodatus eſt orbis alius
              <lb/>
              <note position="right" xlink:label="note-0137-01" xlink:href="note-0137-01a" xml:space="preserve">Figur. 17.</note>
            aeneus, medio cauus, et ſimili ratione diuiſus, uti priores
              <lb/>
            circuli; </s>
            <s xml:id="echoid-s2475" xml:space="preserve">uocatur a menſoribus transportatorium circulare, quia
              <lb/>
            illius beneficio in charta reſtituuntur anguli, circulis horariis in
              <lb/>
            ferrifodinis reperti. </s>
            <s xml:id="echoid-s2476" xml:space="preserve">ex huius transportatorii centro, exiguus an-
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            gulus reſectus eſt, ut in quouis caſu centrum illius orbis ad linearum
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            datarum extrema recte applicari poſſit.</s>
            <s xml:id="echoid-s2477" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div86" type="section" level="1" n="62">
          <head xml:id="echoid-head79" xml:space="preserve">SCHOLION III.</head>
          <p style="it">
            <s xml:id="echoid-s2478" xml:space="preserve">42. </s>
            <s xml:id="echoid-s2479" xml:space="preserve">Praeter hucusque commemorata organa, etiam alia menſo-
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            ribus metallicis uel neceſſaria uel ſaltem utilia ſunt. </s>
            <s xml:id="echoid-s2480" xml:space="preserve">Nem-
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            pe circuini, regulae, norma, ſcalae geometricae, diuerſae magnitu-
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            dinis, magnes eximius, pro excitanda in languidis acubus uirtute
              <lb/>
            directionis, funiculi aliquot ulna longi, item pugillares, et pro
              <lb/>
            commode transferenda in fodinas ſupellectile, perula. </s>
            <s xml:id="echoid-s2481" xml:space="preserve">v. </s>
            <s xml:id="echoid-s2482" xml:space="preserve">V
              <emph style="sc">OIGTEL.</emph>
              <lb/>
            Part. </s>
            <s xml:id="echoid-s2483" xml:space="preserve">III. </s>
            <s xml:id="echoid-s2484" xml:space="preserve">p. </s>
            <s xml:id="echoid-s2485" xml:space="preserve">21. </s>
            <s xml:id="echoid-s2486" xml:space="preserve">ſq. </s>
            <s xml:id="echoid-s2487" xml:space="preserve">ibid p. </s>
            <s xml:id="echoid-s2488" xml:space="preserve">29. </s>
            <s xml:id="echoid-s2489" xml:space="preserve">commendat etiam inſtrumentum
              <lb/>
            proportionale ex 5. </s>
            <s xml:id="echoid-s2490" xml:space="preserve">regulis figura parallelogramma compoſitum. </s>
            <s xml:id="echoid-s2491" xml:space="preserve">Ve-
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            rum tali carere ſatius uidetur, quia illius motus uix tam eſt aequabi-
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            lis et regularis, ut ichnographiis minore maioreue figura pingen-
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            dis, adhiberi ſine errore poſſit.</s>
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