Mechanical
Lever Machines
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On
mechanical lever voting machines, the name of each candidate
or ballot issue choice is assigned a particular lever
in a rectangular array of levers on the front of the
machine. A set of printed strips visible to the voters
identifies the lever assignment for each candidate and
issue choice. The levers are horizontal in their unvoted
positions.
The
voter enables the machine with a lever that also closes
a privacy curtain. The voter pulls down selected levers
to indicate choices. When the voter exits the booth by
opening the privacy curtain with the handle, the voted
levers are automatically returned to their original horizontal
position.
As
each lever returns, it causes a connected counter wheel
within the machine to turn one-tenth of a full rotation.
The counter wheel, serving as the "ones" position
of the numerical count for the associated lever, drives
a "tens" counter one-tenth of a rotation for
each of its full rotations.
The "tens" counter
similarly drives a "hundreds" counter. If all
mechanical connections are fully operational during the
voting period, and the counters are initially set to
zero, the position of each counter at the close of the
polls indicates the number of votes cast on the lever
that drives it. Interlocks in the machine prevent the
voter from voting for more choices than permitted.
The
first official use of a lever type voting machine, known
then as the "Myers Automatic Booth," occurred
in Lockport, New York in 1892. Four years later they
were employed on a large scale in the city of Rochester,
New York, and soon were adopted statewide.
By
1930, lever machines had been installed in virtually
every major city in the United States, and by the 1960’s
well over half of the Nation’s votes were being
cast on these machines.
Mechanical
lever machines were used by 20.7% of registered voters
in the United States as of the 1996 Presidential election.
Because these machines are no longer made, the trend
is to replace them with computer based marksense or direct
recording electronic systems.
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