A film substrate of an electronic displaying element, an electronic optical element, a touch panel, or a solar battery is disclosed which is composed mainly of an organic polymer having water solubility of 0 to 5 g based on 100 g of 25\xb0 C. Optionally, a rail support connects to the base to the rail and a bracket attaches the back support to the rail. In the locked position, a cam follower locking arrangement prevents the spindle from returning to the open positoin. The method further includes flowing the cooling medium into a combustion chamber through perforations in the downstream plate. In the second working position, the split of the tubular body is closed by the sleeve, so as to block the wires inside the device.