| Year | 1925 |
| Date | 15-Jan |
| Volume | 52 |
| Issue | 1,238 |
| Page | 59 |
| Category | Stationary Engine |
| Part | |
| Title | Model Reciprocating Hydraulic Engines |
| Author | Bertram Joy |
| Notes | Early hydraulic engine used for organ blowing, ram crosshead, cylinder foot, stuffing box, three-way valve, a double-acting horizontal hydraulic engine, side elevation, setting out valve gear, cylinder support and guide |