Need help on this slipjoint

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joshdenne
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Joined: Wed Dec 10, 2014 6:10 pm

Need help on this slipjoint

Post by joshdenne »

Hello-all,
I'm new to this forum as I mainly collect knives, but don't often display or share my collection or projects. This restoration, however, has me on the ropes, and I need some serious help in figuring out how to proceed from here.
A little background I guess; one of my favorite hobbies is restoring anything I can get my hands on that I think I can tackle (or at least learn from), ranging from old furniture, to small metal pieces, to knives. I have a limited space to work in, so most my work is done purely by hand tools. My friends know I like fixing different things, and so when one came to my apartment with an old knife he found crushed in a parking lot, I took it off his hands and put it into my to-do pile.
A few months ago I finally dusted it off and decided to do some research on what I have exactly. Turns out it's an old Imperial from what I researched the early 20th century. It was rusted, stuck, and missing a scale, but I saw its potential and set about disassembling it to clean, rebuild, and re-handle. The cleaning went well, and I made my own pins to get it all together, but during the dry reassembly, the backsprings wouldn't fit. I looked everywhere I could online, and joined a few forums here and there to see if my problem is a normal one for making knives or if my dumb self bit off more than I could chew.
This step is glossed over in every single video and reference I have found, with the best mention being that it's time to set the pins, and I have received very little actual advice on how to remedy the situation. At this point I'm almost ready to just throw it away and save the aggravation, but I don't like something so small to be able to defeat me, so I'm giving it a few more chances before it meets the crucible and becomes something else. I have loads of pictures I can upload, but I'll just show the ones for now that illustrate where I'm at on this little bastard.
Thanks ahead for any help that may get me to the next step.
Attachments
This is where I left off a few nights ago after a few frustrating evenings of trying to hold the tools in place while I tried to bend the backspring into position.  I said screw it, got one side into position and clamped it down so I could measure its thickness so I can plan ahead.
This is where I left off a few nights ago after a few frustrating evenings of trying to hold the tools in place while I tried to bend the backspring into position. I said screw it, got one side into position and clamped it down so I could measure its thickness so I can plan ahead.
Here, I started to shed each layer to show my predicament.  As seen in this less than decent photo, while one tool can be positioned the other is almost half covered by the spring.
Here, I started to shed each layer to show my predicament. As seen in this less than decent photo, while one tool can be positioned the other is almost half covered by the spring.
Here is a closeup and slightly better shot of the overlap.
Here is a closeup and slightly better shot of the overlap.
Bottle and Can opener are removed here to show the center spine.  I know it's dirty in some spots still, but the ultrasonic cleaner and several rounds of sanding and cleaning wouldn't remove some of the patina, so I decided to let some of it slide (provided its not rust) to pay an homage of sorts to the fact that this thing has been around for quite some time.  To the top of the picture is the remaining shell I will be using to measure out the new handles and currently use to keep safe the last original pin to measure for my pins.
Bottle and Can opener are removed here to show the center spine. I know it's dirty in some spots still, but the ultrasonic cleaner and several rounds of sanding and cleaning wouldn't remove some of the patina, so I decided to let some of it slide (provided its not rust) to pay an homage of sorts to the fact that this thing has been around for quite some time. To the top of the picture is the remaining shell I will be using to measure out the new handles and currently use to keep safe the last original pin to measure for my pins.
This last picture displays my biggest worry.  I have enough trouble setting the pins as is, but the thin tang to the poker opposite the knife makes it hard to keep any purchase on the backspring as I try to set it.  Needless to say I have a few new small cuts from slipping.
This last picture displays my biggest worry. I have enough trouble setting the pins as is, but the thin tang to the poker opposite the knife makes it hard to keep any purchase on the backspring as I try to set it. Needless to say I have a few new small cuts from slipping.
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Miller Bro's
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Re: Need help on this slipjoint

Post by Miller Bro's »

::welcome::

Do you have a bench vise?
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joshdenne
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Re: Need help on this slipjoint

Post by joshdenne »

I have access to one in a shop I use for larger projects. I spent a lot of last weekend over there using the vice like I see on youtube videos. Maybe I'm missing something with it. I'm much more comfortable woodworking than metalworking, so this is a bit out of my comfort zone.
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just bob
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Re: Need help on this slipjoint

Post by just bob »

I'm not sure I'm understanding your question but you have to compress the springs. Assemble one end and compress the other. These may help.

http://www.allaboutpocketknives.com/kni ... =invention


http://www.allaboutpocketknives.com/kni ... 38&t=13147
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muskrat man
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Re: Need help on this slipjoint

Post by muskrat man »

channel locks work, one jaw on the spring the other on the edge of your assembly block when you have the spring in the position it's in in pic 3. or assemble without backsprings, set them in, compress them in the bench vice then insert your pin. let us know how it goes.
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joshdenne
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Joined: Wed Dec 10, 2014 6:10 pm

Re: Need help on this slipjoint

Post by joshdenne »

I checked out the two links you sent me. That first one is a really neat tool. I may be able to craft something up like that, but would love if a tool out of my box could do something similar. The second link you sent me was actually the very first resource I went to when I got stuck. I had originally planned to restore it with as little help as possible, but the step I'm on proves that maybe I took a bit more than I could handle with my limited tools, resources, and knowledge. I'm also not really trying to buy anything specialized for the job, as this project has me questioning how many more knives I plan on restoring (fixing a table or chair seems like a breeze compared to this).
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#goldpan
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Re: Need help on this slipjoint

Post by #goldpan »

Well I hope this helps. ::nod:: I used to do this with only a pair of pliers. Look at the photos, I hope that they can help you. For the sake of the photos I did not use any proactive barrier to protect the knife surfaces. Good thing I keep a cutaway knife on my bench! ::groove:: Place one jaw of your pliers on the spring and the other as far to other side of the knife as you can. Then slowly squeeze the spring down over the tang of your blade until it pops into the notch. It may slip a few times before it goes where you want. Hope it goes the first time!
DSCN0546.JPG
DSCN0547.JPG
Good luck ::tu::

Randy
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