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Old 05-26-2012, 10:03 PM
gizamo gizamo is offline
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Default Edged Weapons ....old grinder.

The 25 bucks spent at a yard sale seemed like a good deal, at the time.

But being OCD.... I am doomed to restore this rig. Plus add a variable speed control and figure a way to reverse the motor direction...

Effectionately named " The Beast".... It is a great bladesmith tool from the 1940's or so....

Be fun fixin her up...

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Old 05-26-2012, 10:34 PM
arch stanton arch stanton is offline
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Mighty Fine! I believe I would have had to have it for 25 bucks.Hope you post some pics after you get it all tuned up.
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Old 05-26-2012, 10:43 PM
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LouisianaJoe LouisianaJoe is offline
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Originally Posted by gizamo View Post
The 25 bucks spent at a yard sale seemed like a good deal, at the time.

But being OCD.... I am doomed to restore this rig. Plus add a variable speed control and figure a way to reverse the motor direction...

Effectionately named " The Beast".... It is a great bladesmith tool from the 1940's or so....

Be fun fixin her up...

Put the motor on a bigger base and turn it around.
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Old 05-26-2012, 11:10 PM
Armyphotog Armyphotog is offline
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Looks like a really old 1-inch belt sander to me, but I guess if you put a nasty grade of grid belt on it it could be a grinder, too.
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Old 05-26-2012, 11:21 PM
Class III Class III is offline
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To reverse the drive direction simply pull the belt off and flip it over.

To add variable speed, replace the power switch with light dimmer/rheostat.

BTW, It would have been mine for $25, even $125. Good buy on your part.

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Old 05-26-2012, 11:33 PM
m1gunner m1gunner is offline
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NO Belt guards, deadman switch, eye shield....OSHA will have a double conniption fit!

Neat buy, I am glad to see I am not the only one who builds shop tools on a plywood base.
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Old 05-26-2012, 11:40 PM
Cooter Brown Cooter Brown is offline
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To reverse the drive direction simply pull the belt off and flip it over.

To add variable speed, replace the power switch with light dimmer/rheostat.

BTW, It would have been mine for $25, even $125. Good buy on your part.

Class III
This right here. Take the belt off one sheave, turn it 180 degrees so that it looks like an X, instant change of direction. It's hard to change the direction of a single phase motor.

Excellent purchase I'd love to have made!
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Old 05-27-2012, 02:18 AM
Frank46 Frank46 is offline
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Nice buy, watch the wiring going into the box on the motor looks kinda bad. I used to haunt the company dump. Always took the motors out of the motorized file cabinets. Came in handy a few times. My buffing/polishing rig has a old 3750 single phase 3/4 hp motor that came out of an old table saw. Frank
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Old 05-27-2012, 08:32 AM
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This right here. Take the belt off one sheave, turn it 180 degrees so that it looks like an X, instant change of direction. It's hard to change the direction of a single phase motor.

Excellent purchase I'd love to have made!
Switch leads #5 and #8. (if it had the standard back then)
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Old 05-27-2012, 11:25 AM
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Giz, you can buy a foot pedal control for an electric sewing machine for speed control.
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Old 05-27-2012, 03:23 PM
2152hq 2152hq is offline
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Hang it vertical, with the hard wheel at the bottom. Take that last section of wooden board off that has the platten mounted on it right off.
Mount the platten so it's in between the idler and hard wheel.

Now you have room to polish and grind off the hard wheel face and bottom. Plus use the slack belt in between the wheels with the flat surface of the platten to back it up. Or remove the platten an use the slack belt area for polishing rounded areas.

To reverse the motor /belt direction,,unbolt the motor and swing it around so it faces the other way,,pulley in the same place but now goes in the other direction. That'll make room for the center mounted platten too.

Now you have a gunsmiths belt grinder and are all set to go into business polishing Parkers and Purdeys.
You can still use it for knives too.

Nice find. That idler at the top is worth more than that alone,,especially if it's Made in USA!

Be carefull with it though. I had my right hand get caught on the inside of one while polishing the flat sides of a Winchester lever action frame ...pressing the slack belt area from the inside w/right hand up against the frame sides. Spun it around the hard wheel between the belt and the wheel. Let it fly out the other side and into the wall.
Broke the hand (again),,but the polish sure looked good!

Don't ya just love the old non-osha machines!

Last edited by 2152hq; 05-27-2012 at 03:29 PM.
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Old 05-27-2012, 04:50 PM
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I GOT NOTHING! Sorry.
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Old 05-27-2012, 10:50 PM
linedo50 linedo50 is offline
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Thats a 120 volt single phase motor. I'd clean up the wiring and install a reversing switch. They are not expensive or complicated. Just wire it according to the diagram. You can not use a speed control with that motor. it is designed to run at full voltage. You could use a AC drive to control it but that would cost too much. I'd get a set of step pulleys like you might see in a drill press and change speeds by moving the belt from step to step. Those pulleys are available from Grainger and other suppliers. they will cost you less than $25 each. I'm a master electrician however if you want to try the sewing machine switch go ahead. When you try it I'd like a video of you taking your burning boot off your foot. Good luck!!!!
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Old 05-28-2012, 12:40 AM
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Here is what I use to sharpen stuff. It uses 2 step pulleys. One on the motor and one on my wood lathe. This allows the belt to have the right tension and stay parallel to the pulleys. I have the 8" diameter 3" wide wheel that I bought at a lapidary shop a few decades ago mounted on a #2 Morse taper that fits the lathe. I have belts from 80 - 800 grit that fit the wheel. I have other polishing wheels including felt and cloth mounted on other #2 Morse tapers. That makes it easier to change from one to another. If I ever wanted to change directions, I could turn the motor around and mount the pulley on the other shaft. That has not happened since 1973 when I bought the lathe at a garage sale for $25. My father had a spare motor that he gave me. I used this to make knives and I have also used it to sharpen an axe and lawn mower blades.

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Last edited by LouisianaJoe; 05-28-2012 at 12:43 AM.
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