The Intentions were all good, but the actions proved dangerous.
Only tackle jobs where you know what you're doing. This is no place for keen amateurs.
In case you're wondering....
The cable should be tightly secured by the cable grip, not with cable hanging out.
This plug has no pin insulation. It went out of date in 1984.
The screws are there to stop the cables slipping out. This appliance now has no continuous earth.