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MULTIPLE-BAR MECHANISM OF A BLOCK BRAKE |
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Ansicht vergrößern
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Beschreibung
When lever 1 is turned clockwise about fixed axis A, shoes 2 and 3 are pressed against the rim of wheel 4, thereby applying the brake. The brake counterbalances the load on the shaft. Weight a tends to retract shoes 2 and 3 from the rim of wheel 4. |
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