| Year | 1916 |
| Date | 29-Jun |
| Volume | 34 |
| Issue | 792 |
| Page | 437 |
| Category | Workshop |
| Part | 13 |
| Title | How Machine Tools Work |
| Author | Fred Horner |
| Notes | Boring Machines. Boring machines with elevating spindles, horixontal boring machine (The Lucas Machine Co., Cleveland, Ohio), combined type of machine, Pearn-Richards' combined machine for boring, surfacing, etc., Frank Pearn & Co. |