Landracing Forum
Tech Information => Safety => Topic started by: floydjer on November 15, 2013, 01:57:18 PM
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No blood or gore....Advance this to 3:00 and watch www.liveleak.com/view?i=dad_1384415354
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This also happened at a shop next door to mine a few years ago. Luckily?? it was his right hand and he stopped the lathe and reversed it. Still lost much use of his hand.
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Anything that rotates is dangerous to loose clothing.
I watched a guy standing on top of a machine with no good place to stand. He had to drill a hole in a vent pipe, so he grabbed the vent pipe with one hand and drilled through from the other side. The drill went through the vent pipe and caught his shirt. Wrapped it up tight and pinned him to the vent. He wasn't hurt. There were three of us watching because this guy had a history, and we could see it coming. Our reaction was severely delayed because the side splitting laughter and tears had to be stopped first.
Leaving the chuck key in the chuck on a lathe or drill press is dangerous. Where I work we confiscated all of the conventional keys and replaced them with spring loaded keys that can't be left in the chuck. They were attached to the machine with a cable. We wrote up several production people that didn't get the repeated messages and used the ones they had hidden in their tool box.
Using the dead center in the tail stock properly is also necessary. I knew a guy that was threading a 6" diameter piece of aluminum and forgot the tail stock. The piece was spit out and bounced off of the back wall then off his head. Several stitches were necessary. He drove himself to the hospital then went home and collapsed on the couch. Didn't bother to call his mom, who later walked in the door and fainted on the spot.
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Notice his foot? Actually pulled him out of his shoe when he caught the floor
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That's exactly why I hate seeing people wearing gloves when thy work on rotating machinery including drill presses. Hands can be mangled rather quickly.
Pete
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That's exactly why I hate seeing people wearing gloves when thy work on rotating machinery including drill presses. Hands can be mangled rather quickly.
Pete
I don't mind gloves around a drill press, hands should never be near the bit and chuck anyway!!!!!!!!!!!!!!
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Where i worked we had monthly safety films. One month it was about finger safety. Fingers laying in chip trays. Fingers on mill tables and such. So after the movie asked Phil Wu, who was missing three fingers on one hand and two from the other, "having more experience that the rest of us, do you have anything to add?" Phil had learned his trade in China before coming here. Phil looked me in the eye and said "Any man who wok 10 year, and have ten finger, Fording off." I had no come back.
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:-D :cheers:
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Two incidents from my tool and die apprenticeship at the old lazy L
First, a journeyman die maker is introducing me to a disk grinder, 36 ' dia. heavy duty monster. He turns it on, lets it get up to speed and throws a leather shop glove against the disc. Poof the glove turns to dust and leather shards. I listened to that guy.
Second, a setup man in the production machine shop is showing me how to adjust the depth of cut on what was called a high cycle mill. Think of a large vertical mill modified with a DC motor that spins a carbide tooth face mill at 2400 RPM, used for facing aluminum billets to size. He is doing this with the cutter running holding a 6" machinists scale with the three remaining fingers on his right hand. I did not listen to him.
One thing I learned in my apprenticeship, everyone has something to teach you even if it is what not to do.
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One thing that can happen to any of us is finding a machine unplugged, plugging it in, and it turns on. The switch is in the "on" position when the machine is plugged in.
That lathe flick is scary. Taking off my clothes before machining, that is what I need to do.
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ditto on not wearing gloves... was polishing on the lathe... wearing a glove because I'm not thinking...
good thing it was a Harbor Freight glove, lathe ripped it in two and off my hand... hand was a little sore but stayed attached to me :|
I never wear gloves around the lathe or mill
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Leaving the chuck key in the chuck on a lathe or drill press is dangerous. Where I work we confiscated all of the conventional keys and replaced them with spring loaded keys that can't be left in the chuck. They were attached to the machine with a cable. We wrote up several production people that didn't get the repeated messages and used the ones they had hidden in their tool box.
I worked in a machine shop for a short period of time. I once left a chuck in a Warner Swasey #5. I was inexperienced, young, stupid and lucky, because I had also left the machine in reverse.
Sent the chuck through the side of the steel pole building, leaving a gaping hole in it.
I went outside and dug it out of the snow bank.
Had I been smarter, it would have been my left shoulder - but you can't count on stupidity to always bail you out. A sheet of steel and a fistful of pop rivets fixed the building - I wouldn't have been that lucky if I hadn't been that unaware.
I'm still haunted by that one.
One of the most beautiful girls in my high school caught her hair in a small engine lathe in shop class. Had it been a dozen hairs more, it would have drug her face right into the chuck. As it happened, she wound up with a bad haircut for the rest of the semester.
One of my best friends in high school broke his leg in gym class. He shared a hospital room with a farmer who got his new Key bib overalls caught in an unguarded power takeoff on a tractor. There wasn't an extremity on that man that didn't have something broken.
I worked for a short period of time at a rubber molding company in Waukesha. Part of the process was feeding rubber into a heated roller. A co-worker got his hand stuck, and despite the deadman switch, the roller had to be removed to extricate his hand from the machine.
When I saw this post, and then clicked on the link and saw a lathe operator, my stomach turned. I stopped the video and rechecked the initial posting - "no blood or gore". Had I not re-read that, I would have skipped the rest of the video entirely.
I've seen enough of it, but it's good to be reminded that I've seen enough of it.
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Did I mention that I apprenticed as a meat cutter under Doctor Unithumb?
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As a mod on the Jockey Journal I deleted a gory lathe thread several years back. It was something we all should see but we did not need to see it. Dude was sucked in ...................I won't post the rest. That kid above was lucky. What did the guy first on the scene do? No thought to shutting it off? Cornfusing
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Years ago I was fresh out of trade school and working as a machinist apprentice. It was a job shop. That is a machine shop that makes one or a few hundred of whatever is needed. It was a Portugee business and I was their minority hire. This was in the racial quota days.
An apprentice worked various machines before settling down on the one they would operate throughout their career. I was working on the big planer. This was a huge machine built in 1898. The tool hung over the work. The work was bolted to a huge table that slowly slid back and forth on tracks on the machine bed. The machine was about 8 feet tall, 20 feet long, and 6 feet wide.
My task was planing-to-shape some cyclotron magnets. They weighed around half a ton each. It was dark and smoky back at the planer. Spider webs and dust all around like in the Munsters TV show. Grime covered light bulbs hung from cords and provided dim illumination. There was the constant and soothing flappa flapp flappa sound from belt driven machine tools.
Keep in mind I was a guy in my early 20's who did not go to bed at a regular hour. My job required watching the monotonous and regular movement of the planer table from left to right and right to left in front of me. Hours on end, and day after day. Occasionally I would reverse the tool feed or change the cutter bit height.
You can guess who the apprentice was who fell asleep with his machine running.
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I'm sitting in Frankfurt Airport returning from Poland where we have a large manufacturing facility. Yesterday an experienced manual lathe operator lost 2 fingers. Only takes a momentary lapse to change your life.
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When I worked as a machinists I had a guy teach me to use a tub cutter. When it got to the end I pushed the tube in with the tip of my finger. The blade spun the tube and cut a circle in my finger tip. The guy said" I have done that ten times" I only did it once. Good instructor can help.
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So far, so good with the machine stuff but since my field has been electronics, I've done a few dumb things in that field.
When I was in high school I built a portable "black light" using a small UV fluorescent tube powered by batteries. A fluorescent tube requires a fairly high voltage to generate its internal discharge so I taped together three 145V batteries in series. These were serious batteries-- surplus military backpack radio batteries that were each about 10" square by 3" thick. They had a flat connector, so to make the connections, I soldered wires to nails and inserted them in the battery sockets. Voila! the lamp came on and I fooled around with it, seeing what was fluorescent under black light. To shut off the lamp, I had not used a switch so I just reached over, grabbed a nail in each hand.... Yeowww--- the worst shock I've ever gotten! Totally dumb move.
Regards, Neil Tucson, AZ
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One thing that can happen to any of us is finding a machine unplugged, plugging it in, and it turns on. The switch is in the "on" position when the machine is plugged in.
That's very possible in your garage. In a business OSHA doesn't allow it. I've modified many drill presses that were purchased with on/off switches. They have to be replaced with a mechanical or relay starter that won't restart when the power is lost.
Lockout/Tagout procedures also save you from having someone flip the machine on while you are working on it. "Sorry! I didn't see you!"
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Since we`re admitting to our errors.................I engaged the clutch on a 16 X 54 Monarch lathe..With the T-handle still in the chuck. Won`t do that again.
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I did the key in the chuck deal when I was in machine school. Luckily it just threw it on the ground.
My current lathe is a rather large Cincinatti 17" x 42" with a 5hp motor, about the size of the one in the video. It was modified by the previous owner with a chuck key holder that has a microswitch built into it. The machine wont turn on unless the key is in the holder. Pretty cool.
That video freaked me out though. Big time. I was tought in school to not grip the work like that when sanding/polishing but to hold either end of the sand paper, with your fingers tips, in a U shape wrapped around the work. If it ever grabs it just pulls it out of your fingers instead of taking you with it.
Another one that happened at a shop I worked at was someone had a half inch round steel rod in the lathe that was sticking out of the back of the machine a few feet. No problem at all until he decided to turn up the speed and it whipped out and cut a slot in the wall behind the machine. If anyone had been standing inline with it, they would have been cut in two lengthwise.
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guilty. i launched one into the insulation in the ceiling of the shop in dutch harbor . nice and spooky when it happens. :roll: :-o left the key in AND started too fast .havent made that mistake again.
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I noticed that the new drill press I got a couple of years ago had a pin with a spring behind it on the chuck key to eject the key so it wouldn't stay in the chuck. Now I noticed that my new chop saw doesn't have a "lock on" button on the switch. They are taking away all of the fun. My 1/2 inch Dewalt angle drill has a clutch built in now. Apparently somebody is building from experience.
Doug :cheers: :cheers: :cheers:
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I'll admit it -- I didn't know why the chuck for the drill press had that spring-loaded pin. Now I do.
See, we really do learn stuff on this Forum. :roll:
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I noticed that the new drill press I got a couple of years ago had a pin with a spring behind it on the chuck key to eject the key so it wouldn't stay in the chuck. Now I noticed that my new chop saw doesn't have a "lock on" button on the switch. They are taking away all of the fun. My 1/2 inch Dewalt angle drill has a clutch built in now. Apparently somebody is building from experience.
Doug :cheers: :cheers: :cheers:
I just bought a new 1/2" this summer, dad liked it so he bought one as well. He called me one afternoon after working on his deck and said "dam you didn't tell me this thing was THAT powerfull!" Hard on the wrists they can be!
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When I was in Junior High, my metal shop teacher had replaced all the on/off switches with a Thomas & Betts type push button switch that had a metal guard over the on button. The guard had a convenient hole drilled in it that just happened to be the same size as the chuck key. He had figured out how to keep a class of 13 and 14 yr olds from killing themselves, at least with drill presses!
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My drill press has a manual momentary switch you step on. Even then, it can be exciting for a second before you let off with your foot!
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The school I went to never had metal shop classes.
Over here uniforms are compulsory along with neckties.
My cousin Gary gets home from school and he's falling all over the place laughing.
The class bully neglected to tuck his tie into his shirt while using the drill press.
You know the rest.
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On my mill and drill press I have the chuck key attached to the end of a spring loaded return key chain like you wear on a belt. The other end is attached to the machine and trying to pull the key out of the chuck as soon as you stop using it. That way you always know were the key when you need it. So far no one has been able to leave a key in the chuck.
Doug in Big Ditch
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Everything said here about wearing gloves while operating a lathe, mill, etc. can also apply to long sleeves and/or long hair.
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not just machinery , working with my dad at our auto repair shop when I was a kid , trying to find a vibration in an engine , think it was a late sixties el-camino . standing and leaning over the fender revving up the engine , when -- whammo-- radiator fan blade broke off , non fan clutch , solid steel blade . it winged by my forehead , put barely a scratch on me , flew up , and stuck itself in the metal roof overhead . it stayed up there for years until a reroof , never leaked . we hung a sign from it -- if your careless - you may be headless . to this day I will not stand in the way of rotating things .
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I have a very nice Moriseki 18 x 42 lathe and the chuck engagement lever is right next to the chuck, I always put the chuck in neutral before I insert the chuck key.
Back before I retired I worked is a number of companies that had very large machine tools and have seen a number of very ugly accidents which resulted in the loss of extremities, small and large. You cannot be to careful!! We are only given a finite number of body parts, they don't grow back so be careful!
Rex