. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . Fiii. 3.—Robertson process of tube making. the ingot is held by its tenon and mortise extremity, e, in the head, s. which is movableunder the action ofthe screws, o and p. Through successively reducing the duimeter ofthe draw plate, this process permits of drawing out a tube conical externally, like a gun The Robertson Process.—The mandrel, D (Figs. 3, 4, o), of the apparatus of Mr. James ZZZ^ZQ

---

Size: 2817px × 887px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering