Theodolite

1973/005

5 in micrometer tacheometer

Description

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.

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.

Additional information

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