Fire by Fire Pump

Catagory – Friction The fire pump is an assembly of a spindle, thong, cross piece handle, and flywheel. This tool is used with a fire board and spark tray. The middle of the thong is attached to the top of the spindle, and the ends are tied to the cross piece ends. To begin using the fire pump, one hand holds the cross piece horizontally, while the other hand grasps the spindle and winds the thong for several turns. Then press down on the cross piece which causes the spindle and flywheel to begin spinning. You will observe the cross piece handle rise and fall each time the spindle spins and counter spins, so keep pumping the handle to generate friction between the spindle and fire board.can be reduced by occasionally alternating the spindle angle slightly on the hearthboard socket.

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