Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 469
16 inches. Fig. ¥290 shows the vertical vat and the plates suspended in it. Fig. 1291 represents the adjustable plate-supporting frame used in the horizontal vat. 1290. … 1291. -o—-o—a <s 1292.
Mechanical engineering
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-355-148.webp)
![An illustration from Il terzo [-qvinto] libro ... (1551)](https://img.insideoutlibrary.com/img/200/ia-ilterzoqvintolib00serl-56-73.webp)