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  1. Replies
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    I have thousands of hours on both a South Bend...

    I have thousands of hours on both a South Bend and Sheldon. They really should not be spoken in the same sentence. For the same size the Sheldon is twice the weight and far better built. You probably...
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    2,436

    As I have observed more than once, as progress...

    As I have observed more than once, as progress progresses, new situations occur and the judicial system has to deal with them. Once there were no speed limits because nothing went faster on land than...
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    A friend who had a photo processing shop and got...

    A friend who had a photo processing shop and got into computer graphics early participated in a seminar in Mexico. He got in trouble crossing the border with an original IBM PC, the one running DOS...
  4. This is dredging up old memories. Circa 1950, a...

    This is dredging up old memories. Circa 1950, a St. Louis detective told about a guy he didn't like, so every time he saw him, he arrested the fellow and held him 20 hours for "questioning" as they...
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    2,436

    I thought of that before posting. I have no doubt...

    I thought of that before posting. I have no doubt that near Alexandria, VA there is a nuclear bomb proof bunker containing a super computer monitoring everything we write.

    There is a type of...
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    These are very rare quick jobs for nothing but...

    These are very rare quick jobs for nothing but good will. Re the extractor, I knocked a pin out of his breech block and ground about .020" off the part. The owner's shop selling rock and mountain...
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    Question about unlicensed people working on guns

    Like anyone in this business, i get frequent requests for "fixit" work. I generally try not to encourage it, but recently a neighbor asked me to grind down an extractor for a Stevens pump shotgun. It...
  8. I have the one on my 10EE to measure. The specs...

    I have the one on my 10EE to measure. The specs are not that critical. You can get the number of turns for the current coil by unwinding and counting. For the voltage coil you just get the right wire...
  9. About 50 years ago there was a period where the...

    About 50 years ago there was a period where the cops were stopping and searching cars, often if they found some trivial infraction as an excuse. They invited the news people along. One of my friend...
  10. I can probably repair the relay. I wind coils...

    I can probably repair the relay. I wind coils for other relays in the system. I have one on my lathe for comparison.

    Bill
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    The usual mechanism for a chattering contactor...

    The usual mechanism for a chattering contactor is-

    It closes, connecting the heater

    The load of the heater makes the voltage drop

    The lower voltage releases the contactor

    The voltage...
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    As I said in the initial post, the nature of the...

    As I said in the initial post, the nature of the mechanism was that you could not count on the contacts meshing the same way each time. After taking the contactor apart, there was no chance of...
  13. But she didn't give them their constitutional...

    But she didn't give them their constitutional rights.

    Fact is, when someone points a gun at me, their rights shrink drastically. If I had an 11 year old daughter being abducted, their rights...
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    On dressing contacts

    A Hawacheon lathe refusing to run and making growling sounds. It didn't take long to determine that it was losing one phase. The Yaskawa contactor is still available from China with several weeks...
  15. I got a late 60s 14 1/2" Southbend lathe with...

    I got a late 60s 14 1/2" Southbend lathe with bronze bearings that didn't have the "new" worn off yet and ran it 40 years in commercial service, letting most employees run it. The nameplate gives oil...
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    3,022

    Thompson multicellular electrostatic voltmeter,...

    Thompson multicellular electrostatic voltmeter, designed by William Thompson, AKA Lord Kelvin. These instruments use a pair of bow tie shaped vanes, one fixed and one on a pivot so when a voltage is...
  17. Correct, you could test the idea in only one...

    Correct, you could test the idea in only one direction. Replace the armature in a standard solinoid valve or whatever with a rare earth magnet the same size. Here are a couple of candidates.

    K&J...
  18. Correct, you could test the idea in only one...

    Correct, you could test the idea in only one direction. Replace the armature in a standard solinoid valve or whatever with a rare earth magnet the same size. Here are a couple of candidates.

    K&J...
  19. If you really want to be picky about it, connect...

    If you really want to be picky about it, connect each capacitor individually to a common terminal with all leads the same length.

    I use a bank of the large capacity electrolytics Thermite...
  20. Having seen how a daily dose of a psychoactive...

    Having seen how a daily dose of a psychoactive drug smaller than a grain of rice can change a raving candidate for a straight jacket into a normally functioning rational person, I have no problem...
  21. OK, imagine two solinoids back to back with a...

    OK, imagine two solinoids back to back with a common armature so that you could pull it either way and the armature would bottom on each end. Make the armature a permanent magnet and have the coil...
  22. Nope. What I have in mind would be proportional....

    Nope. What I have in mind would be proportional. Wattage would increase as the square of the current.

    Would you consider using a permanent magnet for the armature?

    Bill
  23. As usual, most people suggest all sorts of...

    As usual, most people suggest all sorts of alternatives instead of attacking the actual problem. Conrad Hoffman has some good suggestions. I had a similar request for a long stroke solinoid and...
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    Hans Fischer, who was the honing guru at Sunnen...

    Hans Fischer, who was the honing guru at Sunnen did tests on grit embedment on something like steel, it had to almost be deliberate, applying pressure straight down. Using a piece of sandpaper on...
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    False alarm. The task bar for travel mode is...

    False alarm. The task bar for travel mode is longer than the width of the screen in portrait display and the icon for standard auto travel was off the screen. It had been switched to the Uber and...
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