Early Tilley control cock (patent applied for)

Discussion in 'Pressure Lamp Discussion Forum' started by nicky boy, Jul 20, 2026 at 7:24 PM.

  1. nicky boy

    nicky boy United Kingdom Subscriber

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    Jan 19, 2022
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    uk
    Hi,
    I'm looking for an ID on this control cock please.
    It's all brass with a ball bearing inside as a shutoff, along with the the lower spring valve. There is broken vapouriser end included which keeps the ball in place.
    TIA,
    Nicky boy PXL_20260720_181153927.PORTRAIT.jpg PXL_20260720_181159659.PORTRAIT.jpg PXL_20260720_181206766.PORTRAIT.ORIGINAL.jpg PXL_20260720_181222576.PORTRAIT.jpg PXL_20260720_181224906.PORTRAIT.jpg
     
    nicky boy, Jul 20, 2026 at 7:24 PM
    #1
  2. pete sav

    pete sav Founder Member

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    This XN control valve was the one that followed the first hexagonal control cock
    I think it was in use on lamps from 1924 till 1928ish. After that they looked the same but had a back screw(opposite the knob)to support the far end of the control shaft.
    Various brass valves followed this one its a nice thing to have.
    Cheers pete
     
    pete sav, Jul 20, 2026 at 8:01 PM
    #2

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