guardless


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References in periodicals archive ?
It uses a "guardless" UR cobot to grab a row of bottles--commonly by the necks--off a conveyor and transfer them to a box or tray.
RMT picket lines outside Lime Street as part of Merseyrail staff's dispute against guardless trains (See 'Ballot taxpayers')
This brings me to the ridiculous idea of Merseyrail introducing guardless trains.