Telechron
Hammond decided to go into the electric clock field in 1927 after he had
worked on developing synchronous motors for another project. After
studying what Warren Telechron was doing, he thought their clock motors
were complicated and expensive to manufacture. He thought he could make
a lot of money competing against them.
Hammond's approach to
power loss was different than Telechron's, which was patented in any
case. The Hammond clocks were "spin to start," and this was
intentional. Otherwise, if the clock restarted itself, you wouldn't
necessarily know there had been an outage.
Hammond's motors used a flywheel and ran at a different speed than Telechron's.
Telechron
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