Enco lathe belt/pulley guard

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Here's another project for the school.  Even though a person would have to try hard to get their fingers inserted behind and over the lathe, it failed inspection.(the tiny original cast aluminum guard is plenty safe, and has been in place for years)The hard part is the guard has to move independent of the pulley/motor and the cover.It also has to move with no forethought or procedures for students - otherwise they will instantly break it.... Cardboard, markers and tig welder to the rescue

The victim - you can see the tiny guard tipped up in this photo.



Here you can see how far the motor has to come forward into the guard.That gap still has a visible belt, it will be covered by a gravity closed swing plate.

After final fitting, a second side plate has to be made for the other side.In this photo you can see the front extension that closes the gap.  It was angled down to fit while opening/closing.

(one more set of pics)Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:Pencil lines are perpendicular to the ground.

Gravity closes the door.

Everything fully closed.

Move the lever to rotate motor forward (loosen belts).Note the plate starting to swing forward.

Raising the large front cover exposes the belts for speed changing.Note the aluminum guard swings back and up out of the way automatically.The small gravity plate is swung forward to its farthest position.

It still needs detail sanding, file work and paint - but it's in operation for now.Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:I built a 1X42 belt grinder last night. I thought about putting a guard around the abrasive belt. Nahhhh. You have to TRY to get your hand between the pulleys and the belt. There isn't a V belt pulley on it to remove fingers, anyway. It's direct drive.Be glad you don't work at a "living museum". Imagine having to build guards for an OLD machine.Here's a pic of an old J A Vance 4 side wood planer.

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Reply:Here the right side is visible.Belts are fully enclosed.

Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:

Originally Posted by 52 Ford

I built a 1X42 belt grinder last night. I thought about putting a guard around the abrasive belt. Nahhhh. You have to TRY to get your hand between the pulleys and the belt. There isn't a V belt pulley on it to remove fingers, anyway. It's direct drive.Be glad you don't work at a "living museum". Imagine having to build guards for an OLD machine.Here's a pic of an old J A Vance 4 side wood planer.

Sent from my Lincoln Buzzbox using Tapatalk
Reply:

Originally Posted by MinnesotaDave

Cool planer

I've noticed that on a lot of really old stuff - a large cabinet with doors is the easiest solution.Or maybe a couple cabinets.Unfortunately space was an issue on this build and I was also able to keep all grease/oil points accessible.
Reply:Skip to about 12:00 to see them start it. Notice the train in the background. Sent from my Lincoln Buzzbox using Tapatalk
Reply:Awesome video

Thanks for sharing it.I've seen a lot of Keith's videos, but not that one.Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:Great video Like all the OSHA guards too.Very portable too.Dave

Originally Posted by 52 Ford

Skip to about 12:00 to see them start it. Notice the train in the background. Sent from my Lincoln Buzzbox using Tapatalk
Reply:Guard came out nice.  While it may seem a bit silly...........it beats having to call someone's Mother to say that her son/daughter lost a few fingers in shop class.I found Rucker's comments about people looking out for their own safety "back in the day" disgusting.  Great comment from a guy that's probably never done a hard day's work in his life around dangerous machinery for 12hr shifts.  What an "agricultural scientist" does, I have no idea.We're all lucky that we didn't have to labor in conditions that existed at the turn of the Century.
Reply:

Originally Posted by farmersammm

Guard came out nice.  While it may seem a bit silly...........it beats having to call someone's Mother to say that her son/daughter lost a few fingers in shop class.I found Rucker's comments about people looking out for their own safety "back in the day" disgusting.  Great comment from a guy that's probably never done a hard day's work in his life around dangerous machinery for 12hr shifts.  What an "agricultural scientist" does, I have no idea.We're all lucky that we didn't have to labor in conditions that existed at the turn of the Century.
Reply:The first drill press i used in my early teens was the old hand crank post mounted antique that was converted to motor driven similar to the one below.  The wheel at the top was used to raise and lower the spindle.  Eventually you would be concentrating on the work piece and blindly reach up to turn the wheel and put your fingers into the belt/pulley.  Luckily i still have all my fingers.

Century buzzbox that I learned on 40+ years ago (was Dad's)Crappy Century 110volt mig 70 amp pigeon pooper.Lincoln Idealarc TIG-300
Reply:

Originally Posted by bead-boy

The first drill press i used in my early teens was the old hand crank post mounted antique that was converted to motor driven similar to the one below.  The wheel at the top was used to raise and lower the spindle.  Eventually you would be concentrating on the work piece and blindly reach up to turn the wheel and put your fingers into the belt/pulley.  Luckily i still have all my fingers.


Reply:Had to resort to youtube to remember how they work.  It probably did have the ratcheting mechanism.  But that didn't stop anybody from using the wheel while powered on.Century buzzbox that I learned on 40+ years ago (was Dad's)Crappy Century 110volt mig 70 amp pigeon pooper.Lincoln Idealarc TIG-300
Reply:

Originally Posted by farmersammm

Guard came out nice.  While it may seem a bit silly...........it beats having to call someone's Mother to say that her son/daughter lost a few fingers in shop class.I found Rucker's comments about people looking out for their own safety "back in the day" disgusting.  Great comment from a guy that's probably never done a hard day's work in his life around dangerous machinery for 12hr shifts.  What an "agricultural scientist" does, I have no idea.We're all lucky that we didn't have to labor in conditions that existed at the turn of the Century.
Reply:I need one for my shop look very up to date.Dave

Originally Posted by Oldiron2

Anyone who's been around workers from the steel mills, mines, factory machine shops, or who used nearly any agricultural equipment from the late 1800's on has probably seen many with missing fingers, hands, or stories about even worse accidents. Although the numbers are reduced, they still happen, often when good safeguards are defeated or poor practices used, like removing guards from angle grinders. I've done that at times.  Here's a (borrowed) picture of a Champion drill I restored years ago; mine is complete except for the top flywheel and an original "knee" crank, and still needs a place to be permanently installed.Note the two pulleys on the left, one fixed, the other free-running. The belt from the overhead lineshaft ran continually, so was on the free pulley when the drill wasn't used and got shifted to the fixed pulley for drill power. Plenty of places for fingers or clothing to get caught and "eaten", especially in the open gears.