Cafe terrace heating security mechanism having gas source fed burner electrovane activated with safety ball chamber hole microswitch normal position resting.

摘要

The gas unit has a burner (1) fed by a gas source (2) through an electronic vane (3). A thermocouple (4) is placed in the burner and activates the electrovane using a circuit (5) and ball switch (8). The ball switch moves in a chamber (6) which has a hole with a microswitch. In the normal position, gravity maintains the ball in position. However, if the stand is knocked over the circuit is broken and the electrovane closed.