| Year | 1924 |
| Date | 24-Jul |
| Volume | 51 |
| Issue | 1,213 |
| Page | 90 |
| Category | General |
| Part | |
| Title | Some Commercial Engineering Models and Their Uses. Models of Lifting Appliances |
| Author | G.Gentry |
| Notes | Single-chain grab by Stothert & Pitt, self-oiling crane pulleys, davit frame showing double blocks & falls, Welin single-acting quadrant davits for nested lifeboats, worm and wheel control, models of apparatus for storage and operation of ship's lifeboats |