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A tale of 2 Chas Parker vises

gregthor

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A Tale of 2 Chas Parkers
I bought the black 104 vise awhile back to put on the “future project shelve”. ” I bought it because it reminded of the vise my grandfather had when I was a child.
Then yesterday I find the primer red “104-P” vise. The price was right so I thought I would buy it just in case I need a part for the “104". Well my thought process was totally flawed. There is not one common part on these vises!!!
Note the different spelling Chas vs. Chars.
Plus the 104-P has jaws I have never seen on a Chas Parker before
100_5962.jpg

Note handle length is different.
100_5964.jpg

Note the retainer collar has a different length step see where pencil is pointing.
100_5965.jpg


Note one has an exposed screw and one is in a counterbore.
100_5966.jpg

The 104-P is taller
100_5967.jpg

Note the difference when set on a bench between static jaw and edge of bench
100_5968.jpg

Note flange thicknes difference. Was the thinner a cost reduction or was the thicker because of field problems?
100_5963.jpg


Now since the vise is not going to be a parts vise and I love ready those bring back a Wilton from the dead threads I decided to restore this one, It turns out it is not as bad as I first thought. Except for the weld on the jaws everything else is fine. No cracks, good nut & main screw etc. Someone welded the jaws on but the weld had no penetration and the weld is actually not stuck to the casting, only the jaws. I removed the jaws and began grinding/beltsanding them back to original shape
100_5956.jpg

Now here is where you guys come in!! Now that I have fixed the jaws and dressed up the casting and refitted the jaws, they fit really strange. They are "L" shaped and not "c" shaped like all other Chas Parkers. Look close at the photo. They contact at the top only and have a gap at the bottom. The jaws fit perfect and do not rock at all. I believe they left the facory that way. I think this was covered in "vises of garage jornal" but I can't find it. Does anyone know?? What was the purpose of this style jaw??

Thanks, Greg
100_5971.jpg
 
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autopts

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Jul 4, 2009
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I guess the 1st thing I would do is reverse the jaws, if its a honey and you really want to keep it, GJ member promachineeng recheckers and trues up Parker jaws. Just don't be in a hurry to get them back.
 
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gregthor

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Feb 24, 2010
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Thanks Nick,
I tried reversing the jaws but it makes no difference.
I will probably leave it as is and see what happens in service. I am inclined to think it has been this way since new. Someday I hope to have a Bridgeport so I can fix it further down the road if I need to.
Greg
 
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Joe B.

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I love all of the detail in this thread... but I have nothing to add.

Thanks for posting!
 
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gregthor

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Feb 24, 2010
Messages
267
Location
MICHIGAN
Joe B
Thanks, glad you are enjoying the thread! I am an engineer and early in my career I wrote instructions for nuclear submarine components where detail really matters.
Greg
 
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