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Old 18-03-18, 01:31 PM   #481
martinpaff
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There is one for sale on the web for 225, which seems a bit extreme to me. Although I hadn't seen one before, they must have been made in very large numbers. I think the casing is solid zinc, so they probably had some scrap value when no longer used...

MP
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Old 18-03-18, 02:28 PM   #482
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I have an interesting lamp, it is an ML Pneumatic light that was used in a mine. It is beautifully made from bronze and has a Bakelight turbine coupled to a small generator.
Thread here http://www.stationary-engine.net/for...ad.php?t=34101

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Old 18-03-18, 02:50 PM   #483
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Quote:
Originally Posted by martinpaff View Post
(snip) I think the casing is solid zinc, so they probably had some scrap value when no longer used...

MP
Sounds unusual given the reactivity of zinc and the use of the lamp in the potentially extreme conditions of a sewer. Maybe the zinc oxide/carbonate coating that would form provided the protection.

Phillip
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Old 18-03-18, 04:44 PM   #484
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It had a white powdery surface corrosion, reminiscent of the corrosion you used to see on pierced zinc sheet (remember that stuff?). It's probably an alloy (possibly even Mazak) but far too heavy to be alluminium alloy.

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Old 18-03-18, 06:10 PM   #485
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I like the little steamers, my uncle gave me couple when I was a nipper, he had built them himself in the 50's, I had them running on meths a few times, sadly they disappeared during one of the house moves.

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Old 22-03-18, 11:44 AM   #486
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Yet another little shed side-project...



This I picked up; it's one of several original R&H plates that surfaced recently. They would have been used on big diesel projects like pumping stations.

I spent a little while in-filling the black lettering - I think it looks ok.

I want to attach it to a nice mahogany backboard and mount it above the 10IP on the wall.



I haven't got a piece of S/H mahogany large enough, so I'm making a frame; once the plate is attached you will never know that it's hollow in the middle.

MP
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Old 22-03-18, 05:02 PM   #487
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I remember my dad using that method to hold a frame together when gluing, Spanish windlass?.

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Old 22-03-18, 11:06 PM   #488
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Farmer's mitre clamps!!
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Old 23-03-18, 06:04 PM   #489
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Whatever you want to call this lash-up, it worked!



I added some triangular gussets on the inside corners to stop the screws from splitting the joints, then planed and sanded both sides. A quick buzz round the edge with router and ovolo, and it's done.

I just have to decide if I'm going to darken it a little before I finish it, but this will soon be ready for the wall.

MP
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Old 23-03-18, 06:28 PM   #490
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That sign looks familiar. I have one the same on my garage door :-)
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