You are requested to design a moving motor$-$driven hoist that will be mounted on a strong ceiling or mechanical structure. The drum will be able to move loads up and down and to lock them into a desired vertical position, and also to move across the warehouse for example. A safety brake is necessary at any time. The shafts are supported by RCBs properly selected and housed. Gears are used for power transmission from a motor and are enclosed in a lubricated and sealed environment.

Draw $3$ different ideas of the Motor Driven Hoist in your notebook.

Search from internet or other sources $3$ different ideas of Motor$-$Driven Hoist.