God mode restorations
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Yer...couple of hours lolQuick job then?
Yer...couple of hours lolQuick job then?
Your find is an " Essex window display turntable " a page or so down from the hot air engine .I decided to spend a few hours fixing up the little turntable that I bought at Liberty Tool Company the other day. I don't know what it was originally used for, and to be honest, I don't know if I'll ever actually use it for anything, but there are several possibilities. The only identifying marks are what appear to be "WHB" on the frame casting.
Here's the turntable as purchased. It has a 48:1 gear ratio.
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It had some problems. For one thing, the platter wobbled as the shaft turned, so first I bored the hole to 5/8 inch.
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I installed a sleeve and a new 1/2" shaft (nice tight hot-cold press fit). Then I cleaned up the edges of the platter and refaced it so that it turns nice and true.
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This is the underside of the platter with the new shaft after truing it.
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The other problem with this gadget was that the original manufacturing was rather sloppy. The original shaft was about a degree out of plumb/perpendicular in the cast-iron frame, which might have been good enough for whatever its original use was, but I'm a lot pickier about that kind of thing, so I bored out the shaft holes (forgot to take a photo while boring) in the frame to 5/8 inch to square them up. Here are a few of the parts after stripping the paint and giving them a very light bead blasting:
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Boring out the holes in the frame allowed me to install sintered bronze bushings, which is an improvement over the original, which had no bushings.
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The original unit only had a thrust bearing that supported a downward load, so I decided to improve upon that and make a bronze bearing that would handle an upward load and also keep the worm gear more accurately and securely centered over the worm wheel. I made the bearing saddle-shaped to conform to the curved cast-iron frame.
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I turned a smooth thrust surface on the gear to mate up with the new thrust bearing.
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Here's the assembled unit. I replaced the original thrust washer/bearing with a pair of sintered bronze bearings. You can see the saddle-shaped bronze bearing above the gear. I left the shaft extra long for the time being, since I still don't know what I'd be using it for, and I can always shorten it later. I buffed the gear teeth, treated the gears with gun bluing, and oiled them.
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I probably spent about six hours messing about with this, but it was fun, so the time doesn't count. It now operates very smoothly, and there's not a bit of wobble in the platter. I'm using a snug-fitting cotter pin to secure the worm gear on its shaft for now, since it will allow easy disassembly if I ever want to modify it. I'll probably just oil the gadget and stash it in a container until I get the urge to make something with it.
Thanks! Great find! I was wondering what it had been used for.Your find is an " Essex window display turntable " a page or so down from the hot air engine .
The Essex Hot Air Engine
This engine was designed by Henry Essex and was patented in 1902 (US 723,660) The engines were on sale around 1905 and were advert...myfordboy.blogspot.com
But the beard & grunting often cancels everything even if your wearing beer gogglesJust close your eyes and think of England. Everything looks the same in the dark.
Even more so when she proves she can drink you under the table on pints of Guinness at her ratio of three to one of yours .I always had a golden rule....
If a lass is bigger than you, heavier then you, or harder than you - then you don't wanna be getting cosy with her!
Rule to live by, that one
“The hungry have to be fed” - ancient proverb
With care you can get the moulded strain relief off a lot of gear . I have done it many many timesFixed my cheapo Dremel copy. The mains cable has been coming apart around the cable strain relief, but that bit is moulded into the insulation of the cable itself so cannot be replaced. I had a go at strengthening it, but without success. I thought I'd thrown out all my old broken ones (like any normal person would) but I found them the other day and was able to replace the cable. And this one is a separate strain relief, so I can swap the cable again if it lasts long enough to fail.
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Emergency repair job for @Windy Miller. The power steering line rusted through on a bend and needed a repair piece until he can get a new pipe.
The original is 8mm steel but he found some 8mm copper and some thick-walled 10mm too. I started by drawing around the damaged part on my bench with a marker pen, so we had a gauge to work to. Then I cut off the rotted-out bend and made a new one in copper complete with female flare. I kept the old end intact just in case I messed it up and needed to do something drastic:
The first flare split so I slapped myself round the head and annealed it for a second try which worked great.
Here's the original end on the new bend, along with 1.5" of the 10mm thick-walled pipe drilled out to 8mm as a joiner.
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Cleaned up the old steel pipe end and tinned it ready for joining.
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Test-assembled on the bend over my previously drawn outline.
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Then just soft-soldered the assembly with some rosin flux coz I couldn't find my plumber's flux. Heated the steel pipe forst of course so it wicked in nicely without getting a cold joint. Here's the finished repair:
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Thanks so much for doing this @Pete. - you really helped me out there Mate. It was one of those ‘oh 5h1t’ moments when I realised that there was no possible way I’d be able to get a replacement part late on a Saturday afternoon, and I desperately needed to use the truck first thing after the bank holiday.
All in all it turned out to be a really neat repair - you made a great job of it! I’m still laughing about finding that pipe flaring kit that I’d forgotten I even owned!
Hopefully it will all go back together without too much drama tomorrow morning.
Thanks again Mate - you’re a proper Gent!
The pump. I spent a couple of hours trying to fix the old one, but gave up and bought a replacement.