The Higbee indicator serves what purpose?

The Higbee indicator is specifically designed to indicate the start of the threads on couplings. This feature is crucial for firefighters as it allows them to identify the proper alignment for connecting sections of hose. The indicator helps ensure that the hoses can be quickly and efficiently joined under pressure, which is vital during emergencies when every second counts. By providing a clear visual cue, it minimizes the risk of cross-threading or improper connections, thereby enhancing the safety and effectiveness of the firefighting operation. Understanding the function of the Higbee indicator is essential for anyone working with hoses in firefighting scenarios to maintain equipment integrity and operational efficiency.