These were devised as part of the demining tool-bag.
They are a Mine-marker alternative to the
cone often used to mark a find prior to its destruction,
a Signal-indicator and an Excavation- guide.
Mine-marker is a collapsible four-sided box made from a flexible,
washable fabric and non-magnetic brazing rod that is silver-soldered
together. With 12cm sides it stands 9cm high. When not in use,
it folds flat and fits in a pocket or in the manual demining
Signal-indicator is a small hexagon of polycarbonate with a red
cross in the middle. It is designed to be placed at the centre
of a metal-detector reading. The detector can then be used over the
top of the marker to confirm the centre of the reading and the
marker moved if necessary. It includes a loop of nylon string
so that it can be worn around the wrist or located easily when
in a pocket.
Excavation-guide is a triangle of polycarbonate with a 1cm lip
at one end and a red triangle at the other.
The distance from the point of the red triangle to the
bend is 20cm. The user is intended to place the triangle at the
centre of the detector reading and start excavating behind the
guide. When he has reached the required depth, he moves the guide
and works forward to uncover the source of the reading.
using lightweight and transparent polycarbonate, the Signal-indicator
and the Excavation-guide allow the deminer to see the ground and
should not add to his risk in the event of an unintended detonation.