Plane Table surveying set (with all accessories)

Description

Plane Table surveying set (Drawing board, tripod, Alidade, plumbing fork & Bob, Trough Compass, Spirit Level) (Drawing board, tripod, Alidade, plumbing fork & Bob, Trough Compass, Spirit Level)

 

It consists of a well-seasoned wooden table top mounted on a tripod. The table top can rotate about vertical axis freely.

Table Size: 20″x30″ (750mmx500mm)

 

Tripod

An open frame type light tripod is usually provided for fixing the drawing table.

Alidade

Using both vanes, we plot the line of sight on board.

 

Plumbing Fork & Bob

The whole process of plane table surveying depends on the setup of the plane table in the right position. Plumbing Fork and Bob help to attain the levelling, centering and orientation of the plane table.

Plumbing fork and plumb bob consist of a upper and lower arm. The upper arm has a pointer fixed at the end. The lower arm has a plumb fixed under. The plumb bob and pointer will be on the same line.

 

Trough Compass

The trough compass will be 80 to 150 mm long and 30mm wide.

Spirit Level

Spirit Level used to level the plane table tripod each time.