Re: How to clean pin striping
Posted: Mon May 25, 2015 2:02 pm
Yes, Home Depot only had the pumice type of GoJo. So I may have to order it over the Internet. I'm in no hurry.
Let me say a little about the machine and what I've done so far. I got it at an auction about 30 miles from home. The auction was what I call a low-end auction, the opposite end of the spectrum from Sotheby's. Still you never know what or who turns up and sometimes things go for a hefty price nonetheless. I went for my wife to check out a pie safe. It was a beauty. I never got to bid on it; two guys took it up to $1925! Anyway, as it were and unbeknownst to me there were three machines, a common Edison with a case in such bad shape that only the diehard would attempt to restore. It went for more than I was willing to pay for the horn and reproducer (someone bought it who didn't really know what she was buying--I was so relieved when she outbid me). Then there was a very interesting off-brand table model, probably from the 1920's.The motorboard was wood, but the sides were sheet metal finished off to look like mahogany. I can't remember the name on it, something like Mag-Ni-Phone. The motor looked Swiss. It was seized, and the mainspring was broken. I have a soft spot for this sort of thing. It went for an OK price but more than I was willing to pay.
And then there was the Standard. It was all there, including the crank and horn. It looked a mess. I knew it looked far worse than it actually was. (Well, the horn needs to be stripped and repainted.) The auctioneer said all this stuff came out of a 50-year accumulation and that it was stored in either a garage or barn. All this stuff had years of neglect written all over it.
I've disassembled and cleaned the motor. The mainspring is quite good, in fact the entire motor really hadn't been tampered with. The governor has two lead weights. These were badly oxidized. Lead oxide is a white powder and a lot of the weights simply flaked off. The cores are solid lead, but I suspect they are now underweight, which may explain why the motor seems to turn much greater 78 rpms. Not sure about that. Really haven't had a chance to adjust the governor yet. The oak case was extremely dark. Shellac will darken with time, but this was due to a lot of black gunk on it. You could take a clean cloth and a smudge would come off. I wiped the entire case off with turpentine. That improved things, but there were several distracting white areas where the shellac had been exposed to moisture. Didn't look good.
And then I got lucky, real lucky. I have a gentle cleaning solution that I prepare myself. I got the recipe from an English furniture conservator's handbook. The primary ingredient is turpentine, with a small amount of ethanol, some ammonia, and some dishwasher detergent. There is just enough ethanol in there such that I could control the re-amalgamation of the shellac in those white spots. The case is looking really good now. However, I have not touched the front yet where the decal is. It is totally intact but dirty as the rest of the case had been before I cleaned it.
So that's where things stand now. Believe me, I am not always this lucky.
Let me say a little about the machine and what I've done so far. I got it at an auction about 30 miles from home. The auction was what I call a low-end auction, the opposite end of the spectrum from Sotheby's. Still you never know what or who turns up and sometimes things go for a hefty price nonetheless. I went for my wife to check out a pie safe. It was a beauty. I never got to bid on it; two guys took it up to $1925! Anyway, as it were and unbeknownst to me there were three machines, a common Edison with a case in such bad shape that only the diehard would attempt to restore. It went for more than I was willing to pay for the horn and reproducer (someone bought it who didn't really know what she was buying--I was so relieved when she outbid me). Then there was a very interesting off-brand table model, probably from the 1920's.The motorboard was wood, but the sides were sheet metal finished off to look like mahogany. I can't remember the name on it, something like Mag-Ni-Phone. The motor looked Swiss. It was seized, and the mainspring was broken. I have a soft spot for this sort of thing. It went for an OK price but more than I was willing to pay.
And then there was the Standard. It was all there, including the crank and horn. It looked a mess. I knew it looked far worse than it actually was. (Well, the horn needs to be stripped and repainted.) The auctioneer said all this stuff came out of a 50-year accumulation and that it was stored in either a garage or barn. All this stuff had years of neglect written all over it.
I've disassembled and cleaned the motor. The mainspring is quite good, in fact the entire motor really hadn't been tampered with. The governor has two lead weights. These were badly oxidized. Lead oxide is a white powder and a lot of the weights simply flaked off. The cores are solid lead, but I suspect they are now underweight, which may explain why the motor seems to turn much greater 78 rpms. Not sure about that. Really haven't had a chance to adjust the governor yet. The oak case was extremely dark. Shellac will darken with time, but this was due to a lot of black gunk on it. You could take a clean cloth and a smudge would come off. I wiped the entire case off with turpentine. That improved things, but there were several distracting white areas where the shellac had been exposed to moisture. Didn't look good.
And then I got lucky, real lucky. I have a gentle cleaning solution that I prepare myself. I got the recipe from an English furniture conservator's handbook. The primary ingredient is turpentine, with a small amount of ethanol, some ammonia, and some dishwasher detergent. There is just enough ethanol in there such that I could control the re-amalgamation of the shellac in those white spots. The case is looking really good now. However, I have not touched the front yet where the decal is. It is totally intact but dirty as the rest of the case had been before I cleaned it.
So that's where things stand now. Believe me, I am not always this lucky.