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 421
cture The coffer-dam. The earth-work. The bottom springs. The foundation, apron, and pile-driving. The masonry. Dimensions of the Structure.—The pit which was excavated covered an area oi over two acres atthe top, and over one acre at the bottom. It was sunk about forty-two feet below the surface… … DRY-DOCK. 413 The coffer-dam in front was four hundred and seventy feet long, and from sixty to one hundred feetwide. The wings were one hundred and seventy-five feet long, and from fifteen to thirty feet wide. A double row of sheet piling protection-timbers were extended entirely around that part…
Mechanical engineering
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Cours d'architecture enseigné dans l'Academie royale d'architecture : premiere[-cinquième] partie ... (1675)](https://img.insideoutlibrary.com/img/200/ia-coursdarchitectu00blon-64-35.webp)
