What is it? CXLII

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R.H. wrote:

I wonder what the crown is for and what the three-leg piece is for. I wonder why it is marked all the way to horizontal.
George A Caldwell Company Maintenance and repair of all types of hydrants 150 Old Page St, PO Box 646, Stoughton, MA 02072 Tel. (800) 695-4101
At the same address is International Metal, a scrap dealer founded in 1903. International Cable is a subsidiary.
George A Caldwell Company owns a waste-disposal site in Waldoboro ME, which suggests that it and International Metal are the same company.
If you want to be a water utility one-call coordinator in Madison, you have to know how to use a magnetic curb box finder. http://www.ci.madison.wi.us/hr/jobspecs/Onecall-cor.htm
They gave away watch fobs showing their boxfinder: http://cgi.ebay.com/Watch-Fob-CALDWELL-BOXFINDR-watch-pictorial-S-22_W0QQitemZ8925408908QQihZ004QQcategoryZ10328QQcmdZViewItem
Here's another tool for the purpose: http://www.pipehorn.com/pages/products/PA400.htm
Early in the 20th Century, the Ludlow Valve Company was perhaps the world's largest manufacturer of fire hydrants. They were in Troy NY. James H Caldwell became VP in 1892 and pres in 1909, retiring in the 1930s. Coincidence?
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The needle on the Boxfindr was locked in place and pulling up on the crown released it, if I remember correctly it was held in place with a magnet. Thanks for the links that you posted a few days ago.
Rob
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Ah, that, or similar function now make sense. Thanks.
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    Aha! The link to a site selling old magnetos shows every one illustrated with the crank at the gear end as I thought -- not at the end where the square is for a slip-on crank as shown in your puzzle one.

    O.K. I doubt electrical boxes specifically -- but anything made of iron or steel which is large enough to pick up a field from the Earth's field. And it would particularly point to discontinuities. (Hmm ... it might be for finding the cast-iron cylindrical housings put around buried water meters or water (or gas) valves at the entrance to a property.

    O.K. The function was right -- just not the field of application.
    Enjoy,         DoN.
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