The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 136
box which screws into the seat B, to prevent the passage of steamround the spindle E. The sides of the rising part A, are made con-vex, to give a greater passage for the steam when the valve is open. Fig. 3. … The second object, vii., taking off one-third or two-thirds of theweight when desirable, is done by the graduated spindle E, actedupon by the rod and lever L and M, which are worked by a screwhandle on the front of the boiler, raising the upper, or two upperweights, and making the load 151b.,…
Architecture · Civil engineering · Science
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![An illustration from Architectura curiosa nova, exponens 1. Fundamenta hydragogica, indolemq[ue] aquæ, aëris interventu in altum levandæ. 2. Varios aquarum ac salientium fontium lusus per varia spectatu jucunda epistomiorum seu siphonum genera. 3. Magnum amnissimorum fontium, machinarumq[ue] aquæductoriarum sumtu magno exstructarum, ac per Italiam, Britanniam, Germaniam &c. visendarum, numerum. 4. Specus artificiales sumtuosissimas, cum plerisq[ue] principum europæorum palatiis, hortis, aulis; nec non præcipuis monasteriis atq[ue] arcibus. 5. Cum auctario figurarum elegantissimarum, ad hortorum topiaria vario ductù dividenda, nec non conclavium laquearibus ac pavimentis segmentandis, itemq[ue] labyrinthis construendis, adhibendarum. Omnia 200 æri incisis... descripta (1664)](https://img.insideoutlibrary.com/img/200/ia-architecturacuri00bock-52-21.webp)
