Chas. Parker No. 88 vise question...

[steelsurgeon]

Hello...

I have the no. 88 vise, but it is missing the single jaw. So, I made a template of the existing jaw(s) and made a replacement. Not great, but it will hold pipe...



Then I noticed that these pipe jaws would be "in the way" if I ever wanted to clamp something, i.e. a piece of steel square tube vertically and have the tube sit on the slide bar. The pipe jaws would make contact before the top jaws would, as they protrude out beyond the main jaws..

I never saw a picture of this vise before, so I wanted to check it out online. I then discovered that the original front jaw was a lot longer than the one that I made!



Can anyone explain this logic? Is that long jaw meant to be removable?

Thank you.

Rich

 

[RoninB4]

Can anyone explain this logic? Is that long jaw meant to be removable?

-Looks like a square nut and threaded fastener holding the long jaw in place. The threaded fastener doesn't need to clamp/squeeze anything, it just prevents the jaw from falling out. Anything like this would work. A knurled thumbscrew or wingnut could speed up the removal. Your shop-made jaw looks ok to me. Case hardening the serrations would make it last longer if that's a concern.

 

[steelsurgeon]

-Looks like a square nut and threaded fastener holding the long jaw in place. The threaded fastener doesn't need to clamp/squeeze anything, it just prevents the jaw from falling out. Anything like this would work. A knurled thumbscrew or wingnut could speed up the removal. Your shop-made jaw looks ok to me. Case hardening the serrations would make it last longer if that's a concern.

That's true, but I didn't choose the best picture....that nut and bolt is not factory.

The factory setup that I've seen in other pictures shows a swedged/peened, permanent pin. At least that was my interpretation...

Rich

 

[RoninB4]

That's true, but I didn't choose the best picture....that nut and bolt is not factory.

-So who is "the factory" now to decide things? That would be you today and if you're willing/able to make that serrated jaw then I feel you're quite capable of creating a good solution that doesn't detract from the integrity/value of the vise.

The factory setup that I've seen in other pictures shows a swedged/peened, permanent pin. At least that was my interpretation...

-You're probably correct about this. From the factory production standpoint it was far easier/cheaper/faster to just drill a hole, shove a headed pin in and then bang/swedge over the other end so it didn't come out or use a nut to capture the pin. Since you're now in charge what YOU want is the order of the day. Doesn't seem like the hole needs to be drilled any larger, some measuring and an appropriate fastener/nut is all that's required. It doesn't matter if the jaw isn't firmly secured, the pin/fastener just has to prevent the jaw from falling out, the hole in the serrated jaw just needs to be loose enough for easy pin removal. You don't even need a threaded fastener/nut to do this. There's plenty of options for inexpensive quick release pins available from McMaster-Carr (bigger selection), Carr-Lane, or any of the other tooling/fixture suppliers. These are very common to use in fixtures for faster change over of components, I've used them plenty of times in jig/fixture construction. Hope this helps, photos of the solution are always appreciated.

https://www.mcmaster.com/products/pins/pin-type~quick-release/

 

[Hooterville]

I believe OEM is a slip-fit pin with a mushroom head on one side. Design intent is to easily insert/remove the pin from one side to quickly install/remove the pipe jaws. Unfortunately, as in the case of my Parker 434-1/2, the previous owner decided to ball-peen the other side of the pins so now the pins cannot be easily removed,

 

[steelsurgeon]

-So who is "the factory" now to decide things? That would be you today and if you're willing/able to make that serrated jaw then I feel you're quite capable of creating a good solution that doesn't detract from the integrity/value of the vise.

-You're probably correct about this. From the factory production standpoint it was far easier/cheaper/faster to just drill a hole, shove a headed pin in and then bang/swedge over the other end so it didn't come out or use a nut to capture the pin. Since you're now in charge what YOU want is the order of the day. Doesn't seem like the hole needs to be drilled any larger, some measuring and an appropriate fastener/nut is all that's required. It doesn't matter if the jaw isn't firmly secured, the pin/fastener just has to prevent the jaw from falling out, the hole in the serrated jaw just needs to be loose enough for easy pin removal. You don't even need a threaded fastener/nut to do this. There's plenty of options for inexpensive quick release pins available from McMaster-Carr (bigger selection), Carr-Lane, or any of the other tooling/fixture suppliers. These are very common to use in fixtures for faster change over of components, I've used them plenty of times in jig/fixture construction. Hope this helps, photos of the solution are always appreciated.

https://www.mcmaster.com/products/pins/pin-type~quick-release/

You are correct. I am the new sheriff in town! And...I had considered inserting a mushroom head pin with a hitch clip or similar on the other
end, for easy removal. Thing is, is that I am selling a bunch of vises that I've accumulated over the years, and wanted to make this one as original as possible. I did what I did before knowing about the extended front pipe vise jaw.....

I've looked at the Parker vise catalog, and there only a few models that even have pipe jaws. Where would we be without McMaster-Carr! I've been buying from them for over 40 years. Those old 1000 page catalog were like gold!

I believe OEM is a slip-fit pin with a mushroom head on one side. Design intent is to easily insert/remove the pin from one side to quickly install/remove the pipe jaws. Unfortunately, as in the case of my Parker 434-1/2, the previous owner decided to ball-peen the other side of the pins so now the pins cannot be easily removed,

I did the same thing with my "repair"...I peened over the pin on both ends, but that can easily be remedied. I can remove it, and modify a new pin.

But...to satisfy my own curiosity, I'd love to understand the logic of having that long front jaw! If it was not removable originally, then you could not put a piece of stock in the main jaws that would go below the top of the pipe jaws???

Rich

 

[Oregon rock crusher]

But...to satisfy my own curiosity, I'd love to understand the logic of having that long front jaw! If it was not removable originally, then you could not put a piece of stock in the main jaws that would go below the top of the pipe jaws???

You have hit on the main reason so many combination vises are missing their pipe jaws. Damn things are often in the way for operations not involving pipe so they get removed. Not that hard to do. As the years pass by without the user ever needing to use them they are forgotten and just go missing. To hold a full range of pipe including the smallest sizes you kind of need longer pipe jaws on vises like the 88.

 

[steelsurgeon]

You have hit on the main reason so many combination vises are missing their pipe jaws. Damn things are often in the way for operations not involving pipe so they get removed. Not that hard to do. As the years pass by without the user ever needing to use them they are forgotten and just go missing. To hold a full range of pipe including the smallest sizes you kind of need longer pipe jaws on vises like the 88.

I agree with that. I sold a huge vise a few years ago and it was missing a single pipe jaw, too. I'm kind af surprised that the manufacturer didn't take those pitfalls into consideration and make that jaw easily removable.

I think that I will lengthen the jaw that I made and make the pin removable. Im just going to sell it, anyway. Probably not worth the effort, but I'm known to create more work for myself.......

Rich

 

[Hooterville]

One **** retentive idea for modifying the removeable pin: design pin to extend ~ 1/4" and machine a shallow groove in the pin to accept an e-clip (or e-ring).

 

[steelsurgeon]

Well, I removed the first jaw that I made, and decided to make another longer one to replicate the original one. Then, I added a removable cross-pin so that the jaw could easily be removed...best of both worlds.







It's now listed on FBMP....

Rich

 

[Socalpat2000]

Hello...

I have the no. 88 vise, but it is missing the single jaw. So, I made a template of the existing jaw(s) and made a replacement. Not great, but it will hold pipe...



Then I noticed that these pipe jaws would be "in the way" if I ever wanted to clamp something, i.e. a piece of steel square tube vertically and have the tube sit on the slide bar. The pipe jaws would make contact before the top jaws would, as they protrude out beyond the main jaws..

I never saw a picture of this vise before, so I wanted to check it out online. I then discovered that the original front jaw was a lot longer than the one that I made!



Can anyone explain this logic? Is that long jaw meant to be removable?

Thank you.

Rich

I have an 88 1/2 that is missing the pipe attachment and also the jaw attachment

 

[steelsurgeon]

I have an 88 1/2 that is missing the pipe attachment and also the jaw attachment

So, now what do you do? Is the jaw that you do have the correct one? It looks a "little off"...

Rich