Machine Shifting Trolley

A geared trolley, also known as a geared beam trolley or chain block trolley, is a robust device designed for material handling applications. a device that carries electric current from an overhead wire to an electrically driven vehicle. 2. : a wheeled carriage running on an overhead rail or track. 3. chiefly British : a cart or wheeled stand used for conveying something (such as food or books)A trolley is an object with wheels that you use to transport heavy things such as shopping or luggage.