I remember they had those ‘blood boxes’ at Lavarack Barracks, Townsville in the early 1980s.
I got a ride in one one night when I got blind, slipped and rolled down near the waters edge near the barracks dam near the area theatre. A jogger spotted me passed out beside the waters edge at 02:00 in the morning.
I have a vague memory of someone calling ‘hands around, prepare to lift, lift up’ and being shoved inside the ‘blood box’.
Next thing I remember was I was being woken at 06:00 in the morning by a medic checking my blood pressure in 4 Camp Hospital. Had a shocking hang over that day…… ☺️