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H.J. Norris (Coventry) Pocket Watch


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There isn’t supposed to be a spring. From the photo you need to turn the ratchet wheel over. That little pin is meant to go through the arbor to hold the ratchet wheel in place, I would replace the pin because they are not supposed to come out (it is what I call ill fitting)

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There isn’t supposed to be a spring. From the photo you need to turn the ratchet wheel over. That little pin is meant to go through the arbor to hold the ratchet wheel in place, I would replace the pin because they are not supposed to come out (it is what I call ill fitting)


Thank you. This is becoming a lot clearer now. So the ratchet wheel is pinned to the arbor and when pretension is applied, the ratchet is swung into place and locked off with the screw, thus preventing the pretension being lost. All I need to do now is reassemble the chain and setup the pretension. Kind regards Deggsie


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I fiddled with one of these some time ago and unfortunately broke a lever pivot when re-assembling so will need to get a new staff/pivot made by a professional watchmaker (about £30 last quote!!).  This was caused by trying to get all the pivots into the large single plate.  Make sure the plate sits down easily on the posts before you start to re-assemble the train as this can make pivot alignment difficult if the plate is tight on the posts.  I think the ratchet is only for when you are finally setting the winding of the chain on the fusee to give it a little pre-tension.  There are several good books on English Lever Full Plate Pocket watches which I consulted.  I copied the relevant pages for my file but didn't make a note of the authors (duh!!), I thin one was by DeCarle, but if you search the net for English lever Full Plate Pocket Watch repair/restoration you may find good info on how to check/repair the fusee, assemble and set-up the watch etc.

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And here are the photos. Sorry, I got Freddy fast fingers today

ecdac79558c739e202402b366f9a162e.jpg&key=fa90dfa4d595826d149c03f39aed94d7944f2e8f5a7f26f34989dcbfc01e882148f528014b79ea8a2be9fddd304bb56e.jpg&key=2b1d7e9f6a1e280ef86246e93f5d8ebdffa85bc2833c8a63334eb8eb3b2fd94e


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Make sure you turn the ratchet wheel about 6 clicks to put some tension on the spring elts the chain will drop off...


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There isn’t supposed to be a spring. From the photo you need to turn the ratchet wheel over. That little pin is meant to go through the arbor to hold the ratchet wheel in place, I would replace the pin because they are not supposed to come out (it is what I call ill fitting)


Hello OH. Sorry not to have reported back on this for a few days but work has prevailed (unfortunately). The square end of the mainspring arbor does not have a hole through it. You explanation seems so logical. I’ve looked at 20x magnification on all 4 facets and no evidence of a pin ‘sheared’ off either. So I’m wondering do some designs rely on the mechanical back pressure on the ratchet to lock it onto the square arbor?

Also the chain is quite stiff so I need to but some work into this before going any further. It’s soaking in white spirit just now, then I shall soak in naphtha, and finally warm 3 in 1 oil.

I’ll keep you appraised of how things go. Any comments are much appreciated as this is my first fusee p/w




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Well, I'm sitting on the edge of my chair waiting to see the end results of this endeavor! Fantastic work thus far! This is why I love this group!


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Well, I'm sitting on the edge of my chair waiting to see the end results of this endeavor! Fantastic work thus far! This is why I love this group!  

 

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Ah .. Gary you may need to sit back and relax for a bit as things have taken an undesirable course. Sadly the barrel hook had become detached from the chain! Under microscope it appears that a solder joint may have been made in the past. The good news is that replacements seem to be readily available on eBay, although I need to measure up the exact length, width and thickness. The chain I have is very worn down the sides of the plates do ascertaining the true thickness may be difficult. These things are sent to test us!

 

In not sure if anyone here offers a repair service? Or maybe you know of someone who can?

 

Regards

Deggsie

 

 

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Just to give you all an update on this repair. Firstly thank you to all who have offered positive and useful advice, especially OldHippie. Without the advice I have received on here I would not have started this project. I’m currently sourcing a replacement fusee chain from a gentleman on eBay who literally has too many lengths and sizes of chains to list then all, so I’m hopeful he can find one.

 

I’ll keep you posted when I have a replacement fusee chain and have it installed back in the watch. Until then, onto my next movement

 

Deggsie

 

 

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    • Hi Bob, Welcome to the forum and thank you for your service.  I would never try to discourage you from getting into this wonderful hobby/profession, but please be aware, it does not cost just a few dollars to get into watch repair.  Tools are expensive and in many instances the cheap knockoffs are worthless, especially when learning.  You can get the tools needed to disassemble, clean, inspect, reassemble and lubricate a watch without spending thousands, but as soon as you start getting into task-specific tools, there are so many and they don’t come cheap.  My suggestion is to start with the basics required to disassemble, clean, inspect, reassemble and lubricate only, and build upon that gradually as the need for other tools arises.  The advice above regarding starting out on working movements is gold. Many of the non-running watches on eBay have been bought, tinkered with, deemed too difficult and then sold again, often with more damage done each time.  Without experience, you clean and service a non-runner and it still doesn’t run. What now? Troubleshooting is difficult as a beginner. This can become very frustrating.  I would encourage you to buy a working movement, and learn to strip and service it. If it isn’t running afterwards, you know it’s down to you, and as long as you didn’t damage anything you know that the parts you’ve got can form a ticking watch. An excellent movement to start with is the ETA 6497 clones from China, such as the ST36. They’re not expensive, and although it finds use in some larger wristwatches, this movement was originally designed for use in pocket watches, so everything is larger and easier to see and handle.  Once you can service a new ST36 and have it running better than it did when it arrived, you’re definitely ready to step up to working vintage watches and then think about repair of non running or poorly running watches.  As far as cleaning solutions go, you will not do better than the commercial watch cleaning and rinsing solutions that are available. You’ll find plenty of suggestions for home brew cleaners online, but the professional products are superior and you want to give yourself every advantage you can, especially when you start working on vintage movements containing hardened decomposed lubricants and often years worth of other dirt and dust. Alcohol is ok for cleaning or rinsing movement parts that don’t contain any shellac. The pallet fork and roller table contain jewels secured with shellac and will tolerate a rinse in alcohol but not prolonged exposure. Methanol dissolves shellac faster than ethanol, and isopropyl alcohol dissolves shellac slower than ethanol. Just in case you don’t know already, the radium on the dial (and likely the hands) of your Dad’s Elgin is highly radioactive. It is safe enough when safely contained within the watch case, but the moment you open the watch and especially when handling the dial or hands you must take precautions against inhaling or ingesting any radium.  Best Regards, Mark
    • I have both sets and use the K&D 99% of the time.  Yes, you have to be careful with the pin.  I use a screwdriver to carefully release the pin from the spring.  Some skill is involved.   I have also modified/replaced the pins in the arbors as necessary.  Yeah, you would think a tool would not require modification, but such is the world of watchmaking.  There is no perfect tool.  Each watchmaker must the tools to his skill, or vice versa.
    • I have the 8-11mm K&D but it doesn't do a great job with modern mainsprings, or I have had terrible luck. The arbor pin protrudes too much and I have damaged more springs trying to disengage the arbor than I have successfully wound and inserted. It seems easier to use with old carbon steel springs. My Watchctaft set gets far more use, though I have to get creative to wind left hand springs
    • It depends on what the gaskets are made from but silicone lubricant should work.  Spray or rub on a generous amount, put in a sealed bag and wait a couple of days.  Test for softness and wipe off the excess.  
    • For hardened gaskets, an experienced watchmaker told me he usually found heat to be the best to soften them up. I tried that on a '70's Tissot where the gasket had turned to essentially epoxy to no avail, but eventually got it off with a 5700 case back opener using a crowbar for leverage to turn the wheel.
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