| 摘要 |
A grapple carriage riding on a skyline capable of being slackened and tightened, and having a grapple supported thereon with means for opening and closing the grapple for gripping and releasing a log, the means includes a remote control associated with a yarding machine so that an operator may cause opening or closing of the grapple from the yarding machine and also move the carriage along the skyline and for positioning the grapple during a logging operation.
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