Safety second doesn't work !!!

Snugrat

Snugrat

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I think I should get this out to all the guys as saftey a
measure. I own a 1946 Southbend 9A with a barrel
switch. I have a 3-jaw speed chuck on it. When you
insert the key to loosen or tighten you need to put it
back gear to hold the chuck. Well I put in the key and
went for the backgear lever and hit the switch. No body
hurt or nothing damaged but it could of got very ugly.
So I devised a safety on the switch. This helped me a lot.
I hope this helps somebody else. I know everybody is safe.
I taught ( Shop, Industrial Arts, Tech Ed ) and with 25 kids
running around the shop with all that machinery. It had to be safe
all the time.:headache: See enclosed photos
Snugrat



P2070002.JPG P1280009.JPG P1280014.JPG P1280015.JPG P1280017.JPG P1280019.JPG
 
Hi Snugrat,
A very nice practable solution to to your situation.
Safety at times does not have to be complicated, you saw the need to issolate the switch and the dropdown cover to hold the switch arm in the offsate is a simple but effective way to do this, well done.

Regards,
Keith_W
 
I like the knob, and the fact that the safety lock is self-storing. You don't have to go looking for it when you want to use it.
Nice "safety orange" paint job.
Thanks for posting,
Terry S.
 
Smart, quick, and easy solution to a dangerous problem.

In a large corporation, that would be considered a near miss.
 
Sorry Spud, it was not a laundry soap container.
I used .045 aluminum and bent it to shape.
Snugrat :))
 
Before I retired I taught trades at a tech school. On our lathes there was a deadman switch that had to have the chuck key stuck in it before the lathe would work. It was simple, just a tube with a flange and a bit milled out for the switch. It was bolted to the top of the lathe. The best things are usually the simplest.
 
Interesting, and Clive just mentioned something that I have questioned for years. Ok we have two
SB 9A long bed twins. As shown in Snugrats pic the drum switch which I see is in the way. Our switch
casting is different and has a pull 'on" push "off" switch 'there', and the drum switch is just below the
leed screw. The drum switch is allways on forward and we only use the top switch and is in a good
spot, if in trouble just slap it. I know one was a school lathe and the other probably was too. So
this just could be as Clive said school modified?? Both a 444R 4 1/2 bed and I think 1941-42
ill find pic of switch.

new grey.jpg
 
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