Jones Talk, Slide 4
- Lever Voting Machines
-- First use, Lockport, New York, 1892.
-- Universal in US urban areas by 1930's.
- Closing the curtain on the voting booth cocks mechanism.
- Pulling levers does nothing.
- Opening curtain resets levers and increments registers.
- Each register is an odometer mechanism.
- Printer-pack allows hard copy output.
-- Weakness: Recount is impossible
-- Weakness: Thousands of moving parts4 digit wheels per register.-- Weakness: Inscrutable mechanism.
3 carry propagate wheels per register.
3 ratchet, pawl and spring per register.
several hundred registers.We give our trust to the service technicians, the only ones who ever see what's inside the sealed box!-- Strength: Nothing subjective!
-- Strength: Interlock mechanism prevents overvotes.
-- Strength: Secret and private.The booth is private enough to change clothes in, but the sound of pulling a lever has been exploited!