[ATTACH=CONFIG]241720[/ATTACH][ATTACH=CONFIG]241721[/ATTACH][ATTACH=CONFIG]241721[/ATTACH]

This is the later version of the Lockheed T33 seat which incorporated a somewhat primitive device for pushing the occupant out of the seat following ejection/clearing the aircraft.

I have an earlier example , and can say that it was all pretty hazardous back in the fifties if you had to punch out. Frequent problems with extreme disorientation due to the tumbling of the seat after it left the aircraft, caused many pilots to fail to separate from the seat and therefore had no opportunity to use their chute.
The early flight manuals advised aircrew to unfasten the seat harness PRIOR to ejecting to avoid this problem !