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LEVER-TYPE ELASTIC-LINK SWITCHING MECHANISM

Lever 1 and link 2 turn about fixed axis A. Elastic link 3 encircles shaft A. When lever 1 is turned clockwise, spring 3 pulls link 2 smoothly out of clip 4. If link 2 sticks in clip 4, it can be positively extracted by turning lever 1 further so that its pin b engages lug c of link 2.
$2134$EL,SE$