Boyle, Robert
,
New experiments physico-mechanicall, touching the spring of the air and its effects
,
1660
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ſelf: It conſiſts of two principal parts; a
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glaſs Veſſel, and a Pump to draw the Air
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out of it. </
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>The former of theſe (which we, with
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the Glaſs men, ſhall often call a Receiver,
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for its affinity to the large Veſſels of that
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name, uſed by Chymiſts) conſiſts of a
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Glaſs with a wide hole at the top, of a
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cover to that hole, and of a ſtop-cock
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faſtned to the end of the neck, at the
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bottom. </
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>The ſhape of the Glaſs, you will find
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expreſſ'd in the firſt Figure of the annex
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ed Scheme. </
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>And for the ſize of it, it
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contain'd about 30 Wine Quarts, each of
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them containing near two pound (of 16
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Ounces to the pound) of water: We
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ſhould have been better pleaſ'd with a
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more capacious Veſſel, but the Glaſs-men
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profeſſed themſelves unable to blow a
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larger, of ſuch a thickneſs and ſhape as
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was requiſite to our purpoſe. </
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<
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>At the very top of the Veſſel, (A) you
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may obſerve a round hole, whoſe Dia
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meter (B C) is of about four inches; and
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whereof, the Orifice is incircled with a
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lip of Glaſs, almoſt an inch high: For
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the making of which lip, it was requiſite
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(to mention that upon the by, in caſe </
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