| Year | 1920 |
| Date | 02-Dec |
| Volume | 43 |
| Issue | 1,023 |
| Page | 450 |
| Category | Workshop Topics |
| Part | |
| Title | The Sizing of Gear Wheels |
| Author | |
| Notes | General note, parts of teeth, some proportions of a tooth, involute teeth, roughly measuring the pitch circle, diametral pitch and other pitches, the reason for diametral pitch, diametral pitch explained, a suggestion for roughly finding the D.P., the depth of teeth, to calculate the size of a blank and determine the size of a wheel, the sizes of gear cutters, types of gear wheel teeth, designation of cutters |