1973/005
5 in micrometer tacheometer (1928)
5 in micrometer tacheometer with protected scales divided on silver each with 2 micrometer eyepieces reading to 10 seconds of arc. 3-screw levelling head (1928).
Used for measuring horizontal and vertical angles; and horizontal distances in land surveying (by measuring the intercept of a pair of stadia wires on a staff); and for setting out works.
| Acquisition Number | 1973/005 |
|---|---|
| Item Type | |
| Short Description | 5 in micrometer tacheometer |
| Manufactured by | |
| Date of Manufacture | 1928 |
| Sub-items | Box |
| Supporting Items | None |
| Makers Number | 12593 |
| Marks | Engraved "E R WATTS & SON/ LONDON No. 12593" and "T4". Box marked "T1". |
| Dimensions (mm) | 340 (L) x 280 (H) x 270 (W) |
| Donor | |
| Date Donated | March 1973 |
| Materials | Black lacquered brass |
| Condition | Good |
| Display Location |
