Definite Blunder

Discussion in 'Mistakes, Blunders and Boo Boos' started by Jennifer Edwards, Nov 19, 2018.

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  1. Feb 20, 2019 #41

    RonW

    RonW

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    When I worked at RBC in Rhodesia we had, as a vacuum cleaner of sorts, a large centrifugal blower with a bag attached to the blower end and a hose on the suction end. Occasionally it was used as a source of compressed air to blow out dust from equipment. On this one occasion a tech was using it as a blower and he was wearing a tie. I heard the machine "stumble' and die followed by a gurgling sound and turning from my job noted the tech with the machine up against his chin and his face going blue. I always carry a pocket knife and in a short time I had hacked his tie to shreds and retrieved his breathing and the machine. His tie had been sucked into the inlet and wrapped around the impeller until it ran out of tie and attempted to pull his neck in. While he caught his breath and lamented over his tie I dumped the said machine into the garbage bin and wrote an addendum to the shop rules that hence forth not ties were permitted in the shop. We purchased a proper vacuous shortly after.
     
  2. Feb 20, 2019 #42

    Shopgeezer

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    A friend who was a former Bristol Aerospace machinist recalls the emphasis on safety with clothing. No dangling sleeves, long hair, medalions on chains etc. What freaked him out was the insistance by a few of the older British guys on wearing ties. Just the thought of a tie wrapping around the chuck and pulling your face down in to the jaws gives me the willies.
     
  3. Feb 21, 2019 #43

    Kenny Broomfield

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    The really interesting point in these three is your results were progressively worse each time.
     
  4. Feb 22, 2019 #44

    Jennifer Edwards

    Jennifer Edwards

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    I think my guardian angel worked overtime on my case!

    I do not know how I managed to avoid a serious industrial accident during my engineering days.

    I guess I kept conscious of safety procedures, kept alert of my surroundings, and did not have lunches at the gin mill across the street ;-) well not too many...
     
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  5. Feb 23, 2019 #45

    Dubi

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    I could not agree more with you because everything happens in a flash. I always remove my wrist watch and ring before using any machinery on our floor. I also threw out an overall that had gaping pockets on the front which could/did catch on the controls of the Colchester Triumph 200 lathe.
     
  6. Feb 28, 2019 #46

    KellisRJ

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    Too many close calls with saws, push sticks are kept on my wide fence. I've done two things for my lathe:
    1. Rigged a proximity switch where the chuck key hangs. Lathe won't run if the key isn't in the holder. I use a VFD so it was easy to wire it in the circuit.
    2. There is a second stop switch by the door. At least if my GF comes to check on me and sees an emergency she can kill the power. I already have a foot switch for the mill once it gets finished.
     
  7. Mar 1, 2019 #47

    MrMetric

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    KellisRJ....
    That is a *really* good idea. I always find it amazing when you see pictures of people showing their work/shops/etc and you can see a chuck key sitting in the chuck, or a wrench on the drawbolt of a lathe. Eek. I've trained myself to never, if possible, take my hand off the things, but your solution is a really good backup.
     
  8. Mar 1, 2019 #48

    firstgear

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    Good idea
     
  9. Mar 4, 2019 #49

    KellisRJ

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    Thanks. I stay low profile because frankly I'm not building anything LOL. But I stumbled across a comment on the same topic and decided that it was something I really needed to do, and pass it on when the topic comes up on forums.

    The key "hanger" is simply a plastic 2" X 4", "Handy (surface mount electrical) box" in the US, with a diagonal slot, the 1- 25mm proximity switch mounted on the inside top. The key slips down the slot shank down and is right above the belt guard on my Logan 10" 820. So after tightening the chuck the key is simply lifted up and into the box. It's really a very convenient place to keep it. If I ever change the box my VFD controls are I may put the handy box right below the start button, but on the other hand straight up out of the chuck works really well. So for me a <$10 USD, assuming you have a VFD with a closed loop stop circuit, investment keeps me from getting stupid.

    Ron
     

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