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Official: My harrison is a mystery

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Swarfing:
I think the 14 could be a red hearing? It looks like an early L4?

shipto:

--- Quote from: Pete W. on August 07, 2015, 04:41:41 AM ---Hi there, Shipto,

Mysteries can be fascinating, frustrating or both!  I hope that you can continue to identify your lathe.  The search might reveal all sorts of history!!!

Full marks on your cleaning-up job so far.

Do you have enough accessories and tooling to be able to use the machine to make things?

--- End quote ---
Its more intreging than anything else. The main reason I want a manual is to tell me about the gearing and save me having to count teeth. There is a seperate output next to the main shaft which I think was used to run the suds pump but it could come in handy to run other stuff, like gear making equipment.
Yes there is a 10" faceplate, a 8" 4 jaw chuck and a ropey 3 jaw which isnt a lot of use each jaw has multiple marks for jaw positions maybe one set for the external and one for the internal I havent had time to figure out if its capable of running true yet but I kinda doubt it.


--- Quote ---I think the 14 could be a red hearing? It looks like an early L4?
--- End quote ---
maybe but cant find any info about that either only L2 and L5 are mentioned on lathes site though I am sure they would have done L3's and L4's seems strange to jump the 2 numbers.

Manxmodder:
Shipto,I also think Swarfing makes a very good suggestion about it being an L4. I have seen others make the error of identifying L5's as a 15.

There is a forum group specifically for Harrison lathes,are you aware of its existence?.

Just had another skeet at the photo and the headstock top cover looks the same as an early L5.....OZ

Edit to add: Here is the link to the Yahoo Harrison lathe group,they do have quite an extensive photo gallery.

Just another thought, if you measure from the centre of the chuck to the closest swing point on the bed does it look like you could swing a piece of stock 7" radius?

shipto:
Already joined the Harrison group even started a album there.
Yes it can easily swing 7" radius over the bed and 24" in the gap 3' plus a bit between centres 2" through the head all in all its a pretty impressive machine. I put a thread cutter on it today and tested out the threading and all the ones I chose looked good on the thread gauges, I was a bit worried as the cog on the end of the leadscrew looks a little worn so if I can sort out gear making thats probably the first one I will try and replace.
my first job however is to sort out the top slide there is way too much play for comfort and it has a few tight spots.
On the downside its a really noisy machine when you have the leadscrew gears engaged but I read that this is normal for old Harrisons.

Manxmodder:
Now you've given me those figures I can see why this is a bit of an odd one.

Don't recall any of the early Harrisons having 2" through the spindle. It does seem to be a 'special' that you have....OZ

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