LETTERS
WRITE TO US • popularmechanics@ramsaymedia.co.za
WINNING LETTER
Heavy lifting
I am a 72-year-old retired millwright and am writing in to comment on the article about elevators that ran in the November 2019 issue. I was employed during the ’70s as a senior trade-test officer at the then Central Organisation for Trade Testing, and one of the trades we tested was that of a lift mechanic. In those days, computers and even PLCs (programmable logic controllers) were still a pie in the sky and everything was done manually with relays and timers. You can imagine what chaos it was to figure out when what relay must activate, and for how long. We had the opportunity to take a ride on top of
