| 摘要 |
The gun (1) has an end-sided, metallic air exhaust piece (4), and a temperature indicator mechanism (7) attached to the piece, where the mechanism is provided with a mechanical adjusting unit (8) that is deformed through a temperature change. The adjusting unit includes strip-shaped or spiral-shaped elements that have different thermal expansion coefficients, where the adjusting unit consists of bimetal. The indicator mechanism is formed such that the adjusting unit and/or an indicator connected to the mechanism pivots relative to an inspection window (9) when a threshold temperature exceeds. |
