Measurement of the dimensions of footwear lasts
US4433485A · kind A · utility
1Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1982 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | Sep 27, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process and apparatus for the measurement of the dimensions of footwear lasts and for determining reference directions for measurement and manufacture are described. Horizontal and vertical projection tracings are made from a master last, by a mechanical sensing-following mechanism combined with an optical projection system. Deviations from desired positions are rectified by displacing the last, in at least two directions. The location and magnitude of deviations can be marked on the last.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.