| 摘要 |
An automatic slack adjuster having compression force transmitting elements of adjustable length mounted between a key and a pair of brake shoes is provided with a wheel journalled on the key shaft and at one side in tooth engagement with parts of the force transmitting elements. On the other side of the wheel a spring latch rigidly mounted to the key shaft is arranged to contact ridges and grooves on the wheel to establish a one-way clutch.
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