Electricity: circuit makers and breakers – Contact moved by sudden release of stored energy
Patent
1991-10-25
1993-03-23
Garbe, Stephen P.
Electricity: circuit makers and breakers
Contact moved by sudden release of stored energy,
200324, 200325, H01H 510
Patent
active
051956322
ABSTRACT:
A force-storing actuator for connection to a rotor of a step transformer has a central upright axle connected to the rotor and rotatable about its axis, and upper and lower input wheels fixed rotationally to each other and rotatable on the shaft about the axis. Respective upper and lower drive elements fixed underneath and atop the input wheels flank upper and lower force-storing levers rotatable on the shaft between the input wheels and juxtaposed with the input wheels. Each lever is angularly engageable with the respective drive element. A spring has outer ends connected to the two levers offset from the axis. An output wheel fixed on the shaft above the upper input wheel carries an output element fixed on the shaft axially between the levers and engageable angularly with both of the levers. Latching formations on the output wheel are engageable by at least one latch pawl movable between a blocking position latchingly engaging the formations to angularly arrest the output wheel and a freeing position out of engagement with the output wheel. A cam on the upper drive wheel is engageable with the pawl for displacing it between its positions. When the input wheels are rotated with the pawl in the blocking position the spring is tensioned and the cam is then brought into engagement with the pawl to displace it briefly into the freeing position to allow rotation of the output wheel and shaft and relaxation of the spring.
REFERENCES:
patent: 2846621 (1958-08-01), Coggeshall et al.
patent: 3183332 (1965-05-01), Frink et al.
patent: 3848102 (1974-11-01), Jencks et al.
patent: 4761524 (1988-08-01), Golowash
patent: 5101675 (1992-04-01), Lauterwald
Dubno Herbert
Garbe Stephen P.
Maschinenfabrik Reinhausen GmbH
Pascua Jes F.
Wilford Andrew
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