Really old SCREW FACTORY LIFT - everything explained (inc motor room)
19:23
RARE DOT-MATRIX display - but these are NOT LEDs! +Otis motor room
18:49
1950s Otis Autotronic Elevator Machine Room
17:11
How a Crosby Shackle Is Made
15:53
Why Railroads Don't Need Expansion Joints
22:38
The greatest nugget rescue of my life.
16:27
1907 WATER-POWERED ELEVATORS - Full Tour
34:51
How I built a Mechanical Calculator
23:51