Show us Your Vintage Bench Grinders!!!!

[EOC_Jason]

Brass is black, white is neutral, green is ground...

Assuming your ground is on the bottom, on a plug the big blade (left side) is neutral, the smaller (right side) is hot.

Maybe check and make sure you don't have a short anywhere or a wire reversed?

 

[hitthewall79]

Brass is black, white is neutral, green is ground...

Assuming your ground is on the bottom, on a plug the big blade (left side) is neutral, the smaller (right side) is hot.

Maybe check and make sure you don't have a short anywhere or a wire reversed?

This cord didn't actually have any wiring for a ground. Opened up the bottom, and that's exactly what it was... Wire came loose with all the moving around it did, on a plus side, all my switches work.

For all those who are interested, after some scrubbing, I found that this is what the 2 switches do, the one on the left is on and off, while the one in the right controls forward and reverse, and it all works now

Sent from my SM-G955U using Tapatalk

 

[EOC_Jason]

You could always add a frame ground, but that can always be a project for another day.

That is truly odd having a reverse for a grinder like that. Unless you were doing buffing there is no reason to have the wheels reverse.

This cord didn't actually have any wiring for a ground. Opened up the bottom, and that's exactly what it was... Wire came loose with all the moving around it did, on a plus side, all my switches work.

For all those who are interested, after some scrubbing, I found that this is what the 2 switches do, the one on the left is on and off, while the one in the right controls forward and reverse, and it all works now.

 

[hitthewall79]

You could always add a frame ground, but that can always be a project for another day.

That is truly odd having a reverse for a grinder like that. Unless you were doing buffing there is no reason to have the wheels reverse.

Completely agree. Ive never even heard of a grinder having reverse. As for the bearings, this thing has a button specifically built into it for it overheating, so I don't think it would be to far of a reach to say that someone did it to keep overheating other aspects to a minimum by making the motor deal with as little of a load as possible. I just want to know what ***** decided it was a good idea to put sheet metal over the air vents for the motor...

Sent from my SM-G955U using Tapatalk

 

[EOC_Jason]

Completely agree. Ive never even heard of a grinder having reverse. As for the bearings, this thing has a button specifically built into it for it overheating, so I don't think it would be to far of a reach to say that someone did it to keep overheating other aspects to a minimum by making the motor deal with as little of a load as possible. I just want to know what ***** decided it was a good idea to put sheet metal over the air vents for the motor...

Probably to keep all the metal filings from grinding from getting sucked in? Usually grinders have totally enclosed motors...

I'm going out on a limb here but I think that had to be a homemade creation. Don't get me wrong, they did a great job thinking of beefing it up to last, but I'm pretty sure that was never an off-the-shelf design...

 

[JHuston]

That motor has reverse because it likely started life as a metal lathe motor; that's how Atlas/Craftsman lathes handled the reversing.

It used to be fairly common to see a motor pressed into service as a grinder. The Companion/Dunlap/Craftsman grinders of the '30's and '40's are based off of the same Kingston-Conley motor.

-James Huston

 

[Outlawmws]

agree, as a grinder it doesn't need the reverse, but same motor on a lathe or mill...

 

[McBrownie]

Great buy! Can't tell from the small pic, but it looks like it may have been made by either Baldor or Doerr---both excellent makers.

Looks just like my old Doerr. Smooth running grinder.

View media item 55782

 

[bigredrig]

hey GJ. just wanted to show my work horses.

wolf 8" that I got at a garage sale for $25




And a 10" Porter-Cable/Rockwell that I got from work because they wanted something new.






also got the polisher in the deal

 

[exmaxima1]

hey GJ. just wanted to show my work horses.

And a 10" Porter-Cable/Rockwell that I got from work because they wanted something new.


also got the polisher in the deal

Did both those grinders come with the cast iron stands? If so, that's a killer deal!

 

[bigredrig]

yes they both came complete. they rather have new, which worked for me.

 

[406Rich]

Picked up this Delta Triple Duty ball bearing 1/2 hp last Monday off Craigslist, runs very quiet, lights work, glass is good, the tool rests need some work and a new cord/paint and wheels......didnot think $30.00 was too bad for it..only thing missing was the on/off plate on the switch..serial number/date code from 1943....

 

[Triglet]

Any ID help on this? Guys says it's a Craftsman but I haven't found any other Craftsman that looks like it - looks like a Walker Turner based on others I've seen in this thread? Single phase, only other thing I know at the moment.

Thanks!

 

[454ragtop]

Any ID help on this? Guys says it's a Craftsman but I haven't found any other Craftsman that looks like it - looks like a Walker Turner based on others I've seen in this thread? Single phase, only other thing I know at the moment.

Thanks!

Pics no worky, please upload directly to the site using "Manage attachments" under the quick reply box.

 

[EOC_Jason]

Pics no worky, please upload directly to the site using "Manage attachments" under the quick reply box.

Attached for him...

 

[bagged89s10]

Picked up this Delta Triple Duty ball bearing 1/2 hp last Monday off Craigslist, runs very quiet, lights work, glass is good, the tool rests need some work and a new cord/paint and wheels......didnot think $30.00 was too bad for it..only thing missing was the on/off plate on the switch..serial number/date code from 1943....

Nice find!

 

[bagged89s10]

I just bought another delta 1/2 HP for $50.
Different style stand on this one.

 

[DonkDonk]

Here are a couple of my vintage grinders. First 2 are big Queen City grinders. The grey one I am in the process of painting. Planning to put a buffing wheel on the other end. They are both 2hp. The last is a Sioux, it gets used daily. Smoothest running grinder I have ever used.

 

[DonkDonk]

Why is it turning my pictures sideways?

 

[Outlawmws]

If its phone pics you need to shoot them "landscape" as it turns them to landscape.

 

[E.E.]

Here's mine. Picked it up along with a nice early Wilton vise that I posted about in "The Vises Of Garage Journal" It's a Van Dorn--if anyone has information about them please fill me in. The motor is so smooth and quiet and it must have a huge flywheel or something similar inside, as it will run for maybe 10 minutes after I shut it off.
Van Dorn Grinder - 1 by e.estern, on Flickr

 

[bagged89s10]

Here are better pictures of the second delta grinder. This one is on a walker turner pedestal. The tag says 220v but it’s wired for 110v. The lights and bulbs work too. I think I will be using parts from the other one to complete and restore this one. Does anyone know the closest matching color to this one?

The water turner stand is a little damaged but it’s a very cool stand.

 

[exmaxima1]

Here are better pictures of the second delta grinder. This one is on a walker turner pedestal. The tag says 220v but it’s wired for 110v. The lights and bulbs work too.

I'm curious how it wired for 110. The tag doesn't indicate that it has that option. Is it possible that it is actually 220 but someone changed the plug for 110? Have you tried checking the amperage---that would tell for sure.

 

[bagged89s10]

I'm curious how it wired for 110. The tag doesn't indicate that it has that option. Is it possible that it is actually 220 but someone changed the plug for 110? Have you tried checking the amperage---that would tell for sure.

Well I plugged in it briefly and it ran. I haven’t checked amperage. Not 100% sure how to do that.

 

[exmaxima1]

Well I plugged in it briefly and it ran. I haven’t checked amperage. Not 100% sure how to do that.

You would need a meter, ideally a clamp on to check current.

 

[bagged89s10]

You would need a meter, ideally a clamp on to check current.

I actually bought one a few months ago and just haven’t had a chance to use it. I think I’ve watched enough videos on how to use it to go figure it out now.

 

[Outlawmws]

The key with the clamp loop meters is to make a short extension "pigtail" that has separate wires. You can't just clamp over a pair as they cancel out.

 

[Ole Slewfoot]

A "kill a watt" works well too.

 

[bagged89s10]

I just clamped it underneath where there are separated wires. It gave me a reading of about 1.4 amps.

 

[larryq]

Picked up this Delta Triple Duty ball bearing 1/2 hp last Monday off Craigslist, runs very quiet, lights work, glass is good, the tool rests need some work and a new cord/paint and wheels......didnot think $30.00 was too bad for it..only thing missing was the on/off plate on the switch..serial number/date code from 1943....

$30!!??

Just wanted to give a major You **** on that... I check the SF craigslist for grinders, to post in the hot deals thread (I've got too many) and that would have been on there in a hot minute if I'd been checking the Sacramento listings next door.

 

[bagged89s10]

Picked up this Delta Triple Duty ball bearing 1/2 hp last Monday off Craigslist, runs very quiet, lights work, glass is good, the tool rests need some work and a new cord/paint and wheels......didnot think $30.00 was too bad for it..only thing missing was the on/off plate on the switch..serial number/date code from 1943....

Wow that’s a nice one!

 

[BMR24]

Does anyone have or know where I can find a wiring diagram for this bench grinder?

When I turn it on I have to manually get it spinning and when I try to use it it just stalls out. I think it needs a capacitor, but I have no clue what microfarad value it needs or which wires it would go to. It's a dual voltage and currently has a 120 v plug on it. Would the wrong voltage cause this?

 

[bmwrd0]

The capacitor should be a round object underneath in the stand/switch area. It will be marked with the mfd's, or a good motor shop or AC supply house can read it for you. When you do remove it, DO NOT touch the leads and short it out before taking it in.

 

[exmaxima1]

I just clamped it underneath where there are separated wires. It gave me a reading of about 1.4 amps.

The current should have been 4x that amount. Your grinder is indeed 220v, and will have very little power if you run it on 110/120 volts. Maybe you should use this grinder as the donor for your other Triple-Duty.

 

[exmaxima1]

Does anyone have or know where I can find a wiring diagram for this bench grinder?

When I turn it on I have to manually get it spinning and when I try to use it it just stalls out. I think it needs a capacitor, but I have no clue what microfarad value it needs or which wires it would go to. It's a dual voltage and currently has a 120 v plug on it. Would the wrong voltage cause this?

The capacitor would only affect the starting, so giving it a spin to get it going would achieve the same purpose. Once spinning, the lack of power suggests that it is wired for 220

 

[BMR24]

The capacitor should be a round object underneath in the stand/switch area. It will be marked with the mfd's, or a good motor shop or AC supply house can read it for you. When you do remove it, DO NOT touch the leads and short it out before taking it in.

That's the issue, there is no capacitor. I could pull out my old electrical notes to calculate the required capacitance to correct the phase angle, but I still can't tell which wires it would go to.

Exmaxima sounds like these just use start capacitors with a potential relay like an air conditioner compressor? Or do they use a start / run cap?
Thank you both

 

[bagged89s10]

The current should have been 4x that amount. Your grinder is indeed 220v, and will have very little power if you run it on 110/120 volts. Maybe you should use this grinder as the donor for your other Triple-Duty.

I have 220 in my shop. How do you think I need to wire it?

 

[exmaxima1]

I have 220 in my shop. How do you think I need to wire it?

If you only have 2 wires (unlikely, but you have a very old grinder) you should replace the cord. If you have 3 wires, simply connect the "hots" to the white and black wires, and ground the green wire to the chassis. If you want to bring it to the current 4-wire codes, you will need to rewire the grounds.

 

[bagged89s10]

If you only have 2 wires (unlikely, but you have a very old grinder) you should replace the cord. If you have 3 wires, simply connect the "hots" to the white and black wires, and ground the green wire to the chassis. If you want to bring it to the current 4-wire codes, you will need to rewire the grounds.

It does have 3 wires right now. Do you think someone just wired this thing with a 110 plug? I didn’t realize it would even run.

 

[larryq]

Not mine, for sale on Craigslist in Napa, California for $45 as I type this in fact (2/24/2018), but someone should think about snagging it. Looks to be a block grinder from the early 1980s, hasn't been unboxed until now:

https://sfbay.craigslist.org/nby/tls/d/craftsman-1-2-hp-bench/6508660647.html