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Type: Posts; User: sfriedberg

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  1. I've usually seen it as either "stippling" or...

    I've usually seen it as either "stippling" or "waffle die flattening", the latter being a Japanese term translated into English, I believe.
  2. Another keyword is "busway", especially "track...

    Another keyword is "busway", especially "track busway" or "overhead busway".
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    I agree with eKretz. One of the obvious possible...

    I agree with eKretz. One of the obvious possible purposes would be master gages for making production gages for dovetail machine ways.
  4. The diamond pattern "stippling" is a form of...

    The diamond pattern "stippling" is a form of planishing. It's part of a flattening process that simultaneously removes stresses from the material so it will stay flat.
  5. Yeah, dividing head or, perhaps more likely, a...

    Yeah, dividing head or, perhaps more likely, a workhead for a tool&cutter grinder. Many of those had NMTB50 tapers so mills could be sharpened on their arbors.
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    OK, thanks. I will hit up the lists again.

    OK, thanks. I will hit up the lists again.
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    If you are not already completely on top of this,...

    If you are not already completely on top of this, be aware that the spec for a given alloy can have very wide ranges for the individual elements. So don't be surprised if the lab tells you something...
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    rimcanyon, do you have a pruned list of what's...

    rimcanyon, do you have a pruned list of what's left? I think you had six separate threads at one point and I've lost what's left of my mind trying to combine all six of those lists and subtract...
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    Limy, you got any tips about making the...

    Limy, you got any tips about making the expanders? Grind inside taper and outside diameter first? Slit then retain shape somehow during heat treat? Apply the collet-makers trick of leaving an...
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    Apples and oranges, both correct. There are...

    Apples and oranges, both correct.

    There are several clever ways of activating spring-loaded tools on a turret lathe. "Swing" is one, and "bump" is another. Pivots and slides, basically. The...
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    I don't think there is any industry standard.

    I don't think there is any industry standard.
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    I've got a Nichols, and I don't believe it has...

    I've got a Nichols, and I don't believe it has the arbor length to make this practical, unless you want to get an extended overarm (trivial: use 2.25" TGP bar) and make a custom overarm arbor support...
  13. Very first thing I would check is if you are...

    Very first thing I would check is if you are supplying the same voltage this machine is configured for. If it's wired for 480 and you're supplying 240, that could explain a rattling contactor. It's...
  14. If that's 14.25 degree included (both...

    <WRONG>If that's 14.25 degree included (both sides), it's a 1:16 taper on diameter. That might help narrow it down a bit.</WRONG>

    I should not try to do trigonometry exercises in my head. Half...
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    If I tried to do stuff like that, all you'd see...

    If I tried to do stuff like that, all you'd see is blobs of glue and thumbprints. Very impressive modeling, and apparently pretty knowledgable about the subject material, too (or carefully followed...
  16. Feeler gages in the US. Don't know if the same...

    Feeler gages in the US. Don't know if the same term is used in the UK.
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    Check out the catalog...

    Check out the catalog from the Genesee Manufacturing company.

    I acquired several of these (used) before I realized they weren't as convenient as I expected. In particular, with the positive-rake...
  18. Do those sections extend considerably...

    Do those sections extend considerably perpendicular to the section plane? Are there multiple holes, perhaps?

    Not sure I trust my eyes, but it looks like the A-A section hole(s) to be tapped, and...
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    The large and small diameters are good for a B&S...

    The large and small diameters are good for a B&S #13 taper, reasonably common for milling machines, but BS13 taper/foot is only 0.500. So I don't know what taper this is.
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    I've not see one set up that way, but would...

    I've not see one set up that way, but would speculate that the micrometer guides were used with large square or rectangular tool shanks, to control width on grooving tools (with shanks upright) or...
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    For the purposes of identifying the taper, the...

    For the purposes of identifying the taper, the photo parallax makes it impossible to get the big and small diameters off that scale with sufficient accuracy. Could you give those diameters in...
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    It's unlikely that anybody had a key. There were...

    It's unlikely that anybody had a key. There were many different control panels for semi-automatic Nichols operations and most of them were not factory. It is extremely unlikely your panel is a...
  23. Just a general note, and not intended as...

    Just a general note, and not intended as criticism of this thread. If I have to research what inserts go in each body, and then determine if the inserts are still available (as opposed to obsoleted...
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    That's sort of neat. I've not seen a drill press...

    That's sort of neat. I've not seen a drill press set up that way, but the VS drive tech is fairly common, an adaptation of Reeves variable PD pulleys, where the effective pitch diameter is controlled...
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    If you see something you're interested in at HGR,...

    If you see something you're interested in at HGR, it might be wise to grab it before one of their young monkeys slams a forklift into it.
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