| Description | 12. John Darlington. May, Jun. 1880. 13 items.
Hydraulic engine.
Guide block for piston rod - copy on blueprint paper; detail of slide valve and case - partially coloured tracing and copy on blueprint paper; detail of slide valve motion rod - tracing; connecting piece on balance beam - copy on blueprint paper;
flanges on supply and discharge branches of slide valve case - copy on blueprint paper; ram head plate for accumulator - partially coloured tracing; detail of accumulator - coloured tracing; detail of pipes - partially coloured tracing, Jun. 1880; 2½ inch regulating valve - partially coloured tracing; accumulator, pipes, framing etc. - pencil drawing; tappet rolls for slide valve gear - small sketch;
equilibrium valve - partially coloured tracing, not dated.
For John Darlington. Hydraulic engine for mining. |