A descriptive and historical account of hydraulic and other machines for raising water, ancient and modern : with observations on various subjects connected with the mechanic arts: including the progressive development of the steam engine . osedby a valve opening upwards at the bottom of the box, on which accountthe latter was made conical to afford room for it to play. This valvewould be sufficient for the purpose of charging the siphon, provided theupper part of the box was higher than any other part of the therefore suppose that the disproportionate size of the box and itsbein
A descriptive and historical account of hydraulic and other machines for raising water, ancient and modern : with observations on various subjects connected with the mechanic arts: including the progressive development of the steam engine . osedby a valve opening upwards at the bottom of the box, on which accountthe latter was made conical to afford room for it to play. This valvewould be sufficient for the purpose of charging the siphon, provided theupper part of the box was higher than any other part of the therefore suppose that the disproportionate size of the box and itsbeing figured below the bend are errors of the artist. Of modern improvements, the addition of sucking tubes by which smaJisiphons are now commonly charged was the first. It is uncertain whenor by whom they were introduced. They do not appear to have beenmuch used, if at all, before the early part of the last century ; for all thesiiphons described in old treatises on chemistry, distilling, &c. invariablyconsist of single tubes, which were either charged by immersing them, orbv drawo out the air from the orifice of the dischargfinsr lesf by themouth. It may contribute to some future history of the siphon to preservett few c «06. a-js, 2W. The first two are from the English translation of one of Conrad Gesnera>Aorks, Lond. 1599. (Sts page 3S1 of this volume.) Speaking of draw-ing off water from the liead of a still, the author observes, Yi>u may putcertaine draying pipes into the cover such as you see here livelie portray-ed. Copies of the sair.^ are inserted in several other old works. In Maison Rustique, Paris, 1574, folio 217, they are to be seen, and theinstruments are said to have been made o{ tin plate ^ [tuyaux defer blanc.) • !-- teantifiil inanafactiire (tin plate \- ccntribuies so largely to the fiirnishjojof kitchens. Arc .. supposed to be .». anount date. The Germans were the firstnxak(>Th olit in uiodem times. ft24 Sucking Tube—Vahe-
Size: 3011px × 830px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookiddescriptiveh, bookyear1876
