Up, Up and Away On A Conveyor Belt!
Orville Douglas Denison thinks that telescoping ladders used by firefighters are too slow for firefighters to use effectively. So he designed a system that would lift up firefighters on something like a conveyor belt or an escalator:
In a rescue, firemen could extend Denison’s hydraulic ladder to windows as high as 113 feet. But rather than clamber up the ladder, the firefighter would hop on, and the rungs would roll up at 200 feet per minute—more than twice the average climbing speed of a firefighter weighed down by 130 pounds of gear…
Continue reading… “Could Fire Truck Ladders Be Replaced with Escalators?”
