| Year | 1967 |
| Date | 07-Jul |
| Volume | 133 |
| Issue | 3,324 |
| Page | 641 |
| Category | Workshop |
| Part | 5 |
| Title | Elements of Spherical Turning |
| Author | Edgar T.Westbury |
| Notes | Ball and socket joints, general proportions, machining procedure, large radii, curved profiles, a compound turning appliance by John Pickles |