Big chopper

  1. Screwdriver

    Screwdriver Member

    Messages:
    4,984
    UK London
    So I picked this up the other day with yet-another-vice.

    [​IMG]

    It has issues!

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    Not sure how clear it is from the photos but that's not lens distortion, this thing is bent!

    First job was to strip it down and throw it in a bucket of acid.

    [​IMG]

    Next job will be to unbend it! Probably a fair bit of Oxyacetylene action required and some creative use of the blacksmith vice and/or anvil.

    Anyone recognise the make/model and maybe point me at a "good" one? I am assuming it should be "easy" to see what's bent and how to make it straight but the jaws do need to meet to a very precise tolerance.
     
    jimbo84, stuvy, mrsbruce and 2 others like this.
  2. Onoff Member

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    601
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    Sevenoaks, UK
    Seadog and Parm like this.
  3. Screwdriver

    Screwdriver Member

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    That’s certainly very close and I’m seriously tempted to give it to you but, no. That’s a welded frame, not the more desirable bent frame type. :laughing:
     
    Onoff and Gragson like this.
  4. Onoff Member

    Messages:
    601
    Location:
    Sevenoaks, UK
    Bit 'o gas will straighten the bent frame! :)

    Final offer:

    https://www.ebay.co.uk/itm/Handy-Shearing-Machine/174001450372?

    HANDY make again. I wonder what one's earlier, the bent or welded one?
     
  5. Screwdriver

    Screwdriver Member

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    4,984
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    Yes that’s it. Thanks.

    Is it my imagination or does the one in the advert look like its cracked right through the nameplate?
     
  6. Onoff Member

    Messages:
    601
    Location:
    Sevenoaks, UK
    It does look that way. Can't see the crack on the top in pic 3 though...

    Offer the seller a fiver and he covers postage? :)
     
  7. Seadog

    Seadog Forum Supporter

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    I think it's a machined contour. If you look at the first image you can see the change along the top edge.
     
    zx9 and Screwdriver like this.
  8. arther dailey Member

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    3,056
    Location:
    Southampton England
    reckon yours was used at a concrete yard going by corrosion ,so it will have had a hard life, but there again its a tool to use so only to be expected,should tidy up good.
     
  9. Screwdriver

    Screwdriver Member

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    I think you're right. Mine should be "done" by now, I'll fetch it out of the dip and see what we've got.
     
  10. Screwdriver

    Screwdriver Member

    Messages:
    4,984
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    Straight out of the dip and it looks rusty but all that rust just wipes off.

    [​IMG]

    I wire wheeled it anyway to finish.

    [​IMG]

    Here's why it was a freebie:

    [​IMG]

    The moving blade hanger has sprung away from the lower blade by a good 5-6mm at the end. It meant this chopper had a fair bit of packing and shimming and other bendy bits to try and keep it going.

    Before I do that I needed to make sure I could fix any issues with the rest of it. One adjusting screw would not come out. So I drilled it.

    [​IMG]

    Someone had been in there before and left some hardened material, possibly an easy out or a drill bit. It was a right mare but I got a 5mm through it eventually and tapped it to !/4 20 with my favourite tap.

    [​IMG]
     
    slim_boy_fat likes this.
  11. Screwdriver

    Screwdriver Member

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    4,984
    UK London
    I am so close to having a video editing setup but for now, just this one picture of the main event. An hour of heating with the oxyacetylene and a number of sessions with a massive sledgehammer.

    [​IMG]

    I figured these's not a huge amount of value in this item though it will become hugely useful, I can't afford to spend too much time on it. Just need to get it done. I decided the best plan was to keep the very end as straight and square as possible and never mind the rest of the bodywork, so I clamped the crucial section in the jaws and heated a strip to almost red. It soaked up a ton of heat and needed an outrageous amount of hammering but it worked. I was pleasantly surprised that neither the makeshift vice stand which is freestanding nor the repaired jaw gave me any trouble considering how much force they had to endure. That is 3/4 plate steel which also has a reinforcing bend in it.

    [​IMG]

    The support tangs are also bent I assume from the extreme use and having endured such a hard life. They'll be easy to straighten out.

    The knives now are at a very acceptable angle with just the right amount of offset to allow for the washers (not fitted) and a small amount of adjustment to set it up correctly.

    [​IMG]

    I just need to knock up a handle, fix the hold down bracket which is also seized sharpen it and paint it.
     
  12. arther dailey Member

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    3,056
    Location:
    Southampton England
    good work.
     
  13. Seadog

    Seadog Forum Supporter

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    4,411
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    NE London - UK
    Great work, Steve :thumbup:
     
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