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Heintz Steam Trap ad from 1897

rudy_2
rudy_2 Member Posts: 135
Here's another scan of an ad from Scientific American (right below the ad for Mark Twain's newest book!). Any idea how this one worked or seen one? They are "Guaranteed never to wear out" so there must be a few still around...
If you folks like this stuff (I love it), Bob has a bunch of them he has scanned and sent me, I can keep putting them up.
(I just hope the radiator foot warmer didn't give hr any new ideas - I can see one right next to the his towel garage!)
Enjoy, rudy

Comments

  • Tony Conner
    Tony Conner Member Posts: 549
    Roper's...

    ...Engineer's Hand-Book (15th edition, 1899) shows this exact trap.

    "...a continuous discharge of condensate without wasting steam. It consists of an outer casing with removable cover, curved tube spring of ellipitical cross section, a plug valve, and a spiral spring. The tube spring is partially filled with a liquid, which heated by the condensed water surrounding it, completely fills the tube when the temperature reaches 197*F. The action is similar to that in the Bourdon pressure gauge, for as the temperature of the water rises, pressure is exerted within the tube, causing it to straighten out and thus close the plug valve. When the temperature has reached 212*F the valve is forced tightly against its seat, remaining so until enough condensation has accumulated to lower the temperature by one degree, when the valve opens sufficiently to pass off the condensed steam, but closes again as soon as the water is discharged. The opening and closing are accomplished so quickly that there is practically a continuous flow of water from the outlet."
  • Steamhead
    Steamhead Member Posts: 17,339
    And they didn't change much over the years

    Here's the Haines ad from the 1950 ASHVE Guide. The medium- and high-pressure versions look a lot like the one in the 1897 ad.

    There have to be some of these still in service, but I've never seen one.

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