Chin Jabber Wakes Drivers
No more dangerous drowsiness on long hauls
You shouldn’t fall asleep at the wheel with this chin jabber on the job. Worn around the neck, it holds a sharp prong under the driver’s chin. If his head nods, the point quickly awakens him. Invented by K. H. Liman, of Rye, N.Y., it has a rubber knob below the tip to prevent serious injury.