Pearn , Manchester

Discussion in 'Identification' started by meisteradam, Oct 7, 2013.

  1. meisteradam

    meisteradam New Member

    Hello

    I have a Pearn engine.
    I am looking for informations about the company and the engine.
    The age of the engine, and and and....





    Thanks for the help.

    Thomas
     
  2. grendel

    grendel Member

    Thomas,

    Schon wieder eine gekauft?
    Leider kann Ich dir mit diese nicht weiter helfen.

    Beste GrĂ¼sse,

    Hubert
     
  3. highrange

    highrange Member

    I know nothing about Pearns, but Google gave a lot of links,and it seems that Pearns were mainly pump manufacturers, making steam engines to power them. Interestingly, it seems that Frank Pearn may have been the inventor of the horizontal boring machine.
     
  4. meisteradam

    meisteradam New Member

    Hello

    Thank you very much for the answers.
    I looked inti Google too. But because there is not so much to find I thought that some british engine friends have more informations.
    I am not sure if it is a air compressor or a steam engine because there are flutter valves into.

    Best regards :)

    Thomas
     
  5. highrange

    highrange Member

    I'd guess steam engine, if only because of the little drain tray and pipe under the valve "crosshead" and rod. Put there to collect condensate from leaking steam,i assume.
     
  6. Dazzla

    Dazzla Member

    It's a lovely steam engine that really needs a flywheel instead of that pulley.

    I have a couple of smaller Pearns engines. I've tried to find information on dating them and have come up with nothing conclusive. Based on adverts they could be anywhere from the mid 1890's to the 1920's, as there seem to be no defining features that specifically date them. Maybe it's different with the bigger ones. If you do find some usefull dating guide I'd be interested to hear about it.

    Cheers

    Dazzla
     
  7. lambe

    lambe Member

    First thoughts were "that's not steam" , the flywheel is a pulley, the portage are not quite in the right places, no governor drive. Pearns were compressor though more likely in this instance Vacuum pump manufacturers as compressors would blow a slide valve of the valve face. all the beast Malcolm.
     
  8. highrange

    highrange Member

    I wonder if the porting is arranged to include steam-jacketing of the cylinder ? (Makes more sense to me than air-jacketing of a compressor... or vacuum-pump ...cylinder)
     
  9. Dazzla

    Dazzla Member

    I would imagine it's a "preservation" paint job, similar to traction engines and rollers in the 70's and 80's that you'll see with painted motion. But you'd be surprised what got painted in the last days of service. I've seen glass oilers and sight levels painted over by those who've no idea what they're doing. They're just told to paint something, so that's what they do!

    As for the compressor theory, as has already been said, slide valves don't work well for that application. Had it been piston-valved then it would be different, although still not ideal.

    And the comment about steam jacketing, that's something rarely found on stationary steam engines. I've always thought it odd that a cylinder mounted on a nice hot boiler gets jacketted, but one that's in a building often a good distance from the boiler isn't. Obviously efficiency is less important, and the insulation offered by being indoors helps.

    Cheers

    Darren
     

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