Art Deco Majesty
A Clockwork Folly
An Old Brownie Movie Camera Put To Bad Use
The Zig-Zagging Rolling Ball Machine
Ballet With Three Pendulums
Art Deco Elegance And The Mystery Arm
Victor Rat Trap No. 1
Victor Rat Trap No. 2
Victor Rat Trap No. 3
Wimshurst Electrical Discharge Machine
Up One Spiral And Down The Other
Mechanical Snakedance
The Altar Of Complexity
La Grande Machine: A Towering Mechanical Symphony
A Clockwork Folly
As a copper ball drops, it makes a propeller spin,
gears move, and a pendulum sway back and forth.
How It WorksHow It's MadeHow It Went

As a heavy copper ball descends through a tower, it causes a horizontal shaft on the right side of the machine to rotate. (The ball's speed is controlled by a pendulum and escapement mechanism, much like that of a grandfather clock. With each beat of the pendulum, the escapement allows the shaft to rotate only one-twelfth of a turn.)

This right-hand shaft then rotates another shaft on the left through a chain belt wrapped around a pulley on each end. (A simple, weighted 'clutch' removes tension on the chain when the ball is being wound up to the raised position.)

As this left-hand shaft rotates, it not only causes various gears to spin a propeller to the beat of the pendulum, it also makes a cam raise and lower an arm, which, through a series of pulleys, causes the clutch's paddle-like appendage to flit back and forth.

There's a good amount of odd mechanical action taking place as the ball descends, a process which takes about 4 minutes to complete.

© 2008-2019 Edmund Dohnert. All Rights Reserved -- Website Design by Exotic Web Art