| Year | 1955 |
| Date | 19-May |
| Volume | 112 |
| Issue | 2,817 |
| Page | 556 |
| Category | Workshop |
| Part | |
| Title | A Coolant System for Small Machine Tools |
| Author | John Denver |
| Notes | Final machining, general arrangement drawing, pump body and cover, making the rotor, the filter, generally |