Here are stills from three early seventies public information films on the subject of workplace saftey. First is Abrasive Wheels from 1971.
"Mmm! Mmmmf mmff!"
"What's up with you? I'm trying to do some grinding."
"Oh, the guard! Well, alright."
"Mmm mheel mmst."
"A wheel burst, did it? Well, you can still hear with the other one, can't you?"
"Yes, it's safe now."
"Mmmh mmhh! Mmmh mmhh!"
"Oh, your hands got pulled in by the wheel, did they?"
"Serves you right. You should have shoved the rest up close to the wheel, like this. A one eighth-inch gap."
"'Ere! Leave me alone, I want to get on!"
"Mmmmh! Mmmhh mmmmmh!"
"Oh, I can't understand."
"Oh, the goggles! Well, all right."
"But what's all the fuss? I've never known anyone hurt by one of these."
Next is Young Workers - Fooling About from 1973.
"When he left school, Dennis Trout,
liked most of all to clown about."
"But on factory floor, the tricks of Dennis,
to his mates became a menace."
"For instance, a compressed air hose, a useful tool,
But deadly handled by a fool."
"For metal filings in the eye,
Can very often blind a guy."
"To throw a rag may seem fun,
Yet cause a mate to crush a thumb."
"So on factory floor, don't be a berk,
Keep your tricks for after work."
And finally, Young Workers - Machinery, also from 1973.
"This chap is a fiddler."
"Er, no, not that kind. Let me explain."
"This is a machine. Quite harmless when operated by a trained operator."
"Oh, most impressive! Thank you, sir."
"Now, the fiddler has not been told or taught how to use the machine."
"But he's going to fiddle. Fiddle with this, fiddle with that, and..."
"So, at work, don't fiddle with machinery you haven't been trained to use."