A collector shoe is a device that collects electrical current from a power source and transfers it to another device for use. Other names for this device include current collector, shoe contact, and trolley shoe. In addition, depending on the specific application, different types of collector shoe may be used, such as carbon brushes or copper strips. Collector shoes are commonly used in mechanisms such as electric trains and cranes, where they provide a stable and reliable power connection. By using a range of synonyms for collector shoe, it helps to provide an understanding of the device and its function across different contexts and industries.