[Jewelry making - Article 00074] - Re: [Orchid] Old Wax injector

[frank goss]

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    The hole could be one of two things. Either it is where the pressure
    gage attaches for the air pressure or else it is for the
    thermometer. You can use a cooking type meat thermometer with the
    dial and the long steel probe on it (preferable to the glass ones
    which I always break).You can tell which is which by looking at the
    underside of the top. The pressure port hole goes all the way through
    the top. The thermometer port has a long hollow tube that is sealed
    at the bottom end and extends down into the wax pot to measure the
    heat of the wax. My wax pot is from the early 1980's and still works
    fine. Sounds like you got a bargain. 

Frank Goss
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