1970s mattress testing machine.




Previously:

Foam mattress mold - GIF
Mattress compressing machine - GIF
Mattress packaging machine - GIF
1938 lightbulb brightness testing machine - photo
Ejection seat testing - GIF
Testing a bulletproof shield in the 1920s- photo
Testing a full-face ballistic helmet - GIF
Testing buses in the UK in the 1950s - video
Testing chainsaw pants, reasonable and insane versions - GIFs