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  1. Replies
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    It isn't a pica rule - which is what a printer...

    It isn't a pica rule - which is what a printer would use. A pica is 1/6" so 10" would be 60 picas.
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    I never thought to look there - perhaps the fault...

    I never thought to look there - perhaps the fault of the internet which seems to have conditioned people to go there first even when they have the reference books at hand. It is not the best way to...
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    Thanks. That is what I thought but without ever...

    Thanks. That is what I thought but without ever having seen it work I thought it best to ask.
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    There are several good ideas here that I hadn't...

    There are several good ideas here that I hadn't thought of but I took John O's advice and tried my threading "fishtail" in the dovetail...and it fit perfectly. So, it's a 60-degree angle. I suppose...
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    Thanks John. That appears to be very similar to...

    Thanks John. That appears to be very similar to the Sidney which is also, I believe, from the early 20s. I've worked up a plan for the bracket - which must have been a casting. My question about the...
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    It is the dovetail on the base of the taper...

    It is the dovetail on the base of the taper attachment for my 14-inch cone head Sidney. I am reasonably certain it is a 40-degree angle and this seems to have been a proprietary measurement used...
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    1,410

    Measuring the angle of a dovetail

    How do you do it if you can't get a protractor into the "V"?
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    479

    I'm pretty certain that the idea was to remove...

    I'm pretty certain that the idea was to remove the cross feed screw and use the compound to move the tool in or out. This is clearly a project that will take some planning. I've never actually used...
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    Thanks John. This is what I've got... 321510 ...

    Thanks John. This is what I've got...

    321510

    321511

    321509

    I was able to puzzle out the dimensions for the bracket on the back of the saddle by working from that arm that clamps to the...
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    Sidney Taper Attachment

    My Sidney lathe, a 14-inch cone head, had a taper attachment. When I bought it (at a printing auction about 40 years ago) I got part of the TA. I'm guessing the rest of it was there but I knew so...
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    I have a copy around here somewhere...I think I...

    I have a copy around here somewhere...I think I read it when I was in High school. I dredged up my memory of the cast steel railroad wheels from Manchester's book though I must have read it 50 years...
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    This got me thinking... One of the most...

    This got me thinking...
    One of the most difficult parts to machine on the M1 Garand was the actuating rod. Given the fact that millions were made during WWII, you'd think that if they could have...
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    1,893

    I didn't realize this had a name - even a French...

    I didn't realize this had a name - even a French name. The reason Augsburg was such a major armor-making center - perhaps from Roman times - was that the iron that was mined there contained elements...
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    1,893

    These are great answers guys... There is...

    These are great answers guys...

    There is another aspect to this as well. Klingenthal was THE French blade making center from at least the 17th century until the mid-19th century when production...
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    1,893

    Sure...you know where to find me! (Justin...

    Sure...you know where to find me!

    (Justin lives just around the corner from my shop.)
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    1,893

    By way of explanation I'll say why I asked... ...

    By way of explanation I'll say why I asked...

    As many of you know, I'm the technical editor of Man at Arms for the Gun & Sword Collector Magazine. This often entails keeping authors from making...
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    Thanks John...let me see if I can find a set....

    Thanks John...let me see if I can find a set. I've a lot of experience with finding obscure books and hardly ever use Amazon but that sounds like what I need.
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    When were steel castings first viable?

    In the 19th century we commonly see items marked "cast steel" but that was a reference to the method of producing the metal, not to the idea of pouring molten steel into a mould - like cast iron....
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    And...that is a plain bearing lathe. If you run...

    And...that is a plain bearing lathe. If you run the spindle faster than was intended the whole machine will be scrap metal in a very short time. I use one every day that is probably 100 years old...
  20. Many years ago I traded a short sword (the proper...

    Many years ago I traded a short sword (the proper term is "Hanger") with a friend who was, perhaps, the preeminent authority on early American swords. It gave every evidence of being a late 17th...
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    The car is back together and on the road so it...

    The car is back together and on the road so it looks as if the gear worked a charm.
  22. It's very similar to my 15" Sidney - a machine I...

    It's very similar to my 15" Sidney - a machine I use practically every day. I'd say they are a good machine - perhaps not as well made as a Hendey but certainly good enough to do some very fine work....
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    The 1880's Prentice Bros. Lathe I once owned had...

    The 1880's Prentice Bros. Lathe I once owned had a 5/8" hole through the head stock - not large enough to put anything through except a small rod. I suspect Phil in Montana is referring to a larger...
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    Almost certainly before WWI - maybe as early as...

    Almost certainly before WWI - maybe as early as the 1890s. It's very similar to a Prentice Bros. Lathe I had but that machine had their name cast into the legs. FE Reed is another possibility - the...
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    I think you must be right about that and I...

    I think you must be right about that and I confess I didn't notice that there was a space there. It's been a long time since I last saw it...
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