| Description | Components and Parts of Boat Engines and Boat Engines for Land. (6 items).
1432. Paddle Wheels and Disengaging Gear. 1820, 1842, not dated. 6 items.
Paddle wheels for 40 horse boat engines - press copy sketch, Jul. 1820.
Sketch of paddle wheel centre piece for 40 horse boat engines, Jul. 1820.
Sketch for model disengaging disks - coloured drawing, Jan. 1842.
Not dated:
"A scheme for making paddle wheel case work lighter" - partially coloured drawing.
Elevation and section of a paddle wheel - partially coloured tracing.
Details of gear applied to paddle wheels for turning the engines - tracing. |