Mechanical timer including cam operated clapper and chimes

Details Mechanical timer including cam operated clapper and chimes Mechanical timer including cam operated clapper and chimes

1996-03-21

1998-04-28

Scott, J. R.

Horology: time measuring systems or devices

Time interval

With predetermined mechanical timing means

200 38R, 200 38BA, G04F 300, H01H 4300

Patent

active

057454418

ABSTRACT:
A timer mechanism for an appliance such as a clothes dryer includes a pulser cam and a timer cam. The timer cam has a notch along its perimeter while the pulser cam has a step formed in its perimeter. The cams rotate in opposite directions with a cam follower biased against the cams. A clapper is connected to the cam follower and is adapted to strike a chime if the cam follower is aligned with the notch in the timer cam and the cam follower drops off the step in the pulser cam as the pulser cam rotates past the cam follower. The pulser cam is connected to the timer motor and continuously rotates at a first speed throughout a cycle while the timer cam is connected to the timer motor and the timer dial of the appliance and rotates in the opposite direction at a second slower speed.

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