| RefNo | MS/525/6/6/2/11 |
| Level | Item |
| Title | 'Further suggestions for tidal mine': engineering drawing by James Ernest Petavel |
| Date | 20 February 1915 |
| Description | Side elevation and detail of buoyancy chamber in the 'Artful Dodger' mine; and diagram of clock controlled cam working gas escape valve. Not to scale. The University, Manchester. Signed by J E Petavel, C N Lander and Andrew Robertson. |
| Extent | 1 drawing |
| Format | Blueprint |
| Dimensions | 58x41cms |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8267 | Petavel; Sir; Joseph Ernest (1873 - 1936); engineer and physicist | 1873 - 1936 |