how do the lights work

Discussion in 'The Workshop' started by twodogs, Feb 23, 2017.

  1. twodogs

    twodogs Active Member

    Messages:
    497
    Rides:
    scooters
    anyone hnow how to get the lights to work 047.JPG 047.JPG 048.JPG 049.JPG
     
    MiNoR cOnFuSiOn likes this.
  2. gilburton

    gilburton Active Member

    Messages:
    558
    Are they carbide lamps??
    If so basically you need calcium carbide which is generally put in the bottom chamber. Water goes in the top chamber.
    Water then drips on to the carbide and produces acetylene gas.There should be some device which can adjust/control the rate of water drip.
    You then just light the lamp as you would a gas lamp.
    Plenty of info on the web and you can buy the calcium carbide.
    That might be the water/carbide container under the saddle and it might have a hose running to the headlamp??
    Here's a link
    http://www.douglasmotorcycles.net/index.php?topic=2966.0

    You'll have to do some research about quantities/size etc but this should start you off?
    http://www.ebay.co.uk/itm/CALCIUM-C...875069?hash=item282a54893d:g:z6oAAOSwu4BVmr7K
     
    Last edited: Feb 23, 2017
  3. Stevep

    Stevep Well-Known Member

    Messages:
    5,898
    Ooh, thats nice.
    I have absolutely no idea with out getting my hands on it, but it might be worth while trying to get in touch with one of the old boys as seen in the Classic Bike magazines.
    It's a shame old Len Onslow isn't still around, I'd have popped round and shown him and asked his advice for you.
    If it is carbide lamps, I think I would look at doing a dynamo conversion on them, mainly because when the calcium runs out you have no lights at all.
    Do you still have the plate for the front?
     
  4. twodogs

    twodogs Active Member

    Messages:
    497
    Rides:
    scooters
    its not mine its owned by a friend of mine, but we are a bit apprehensive about getting the lights going,
    will study the info you gave us let you kn 029.JPG ow how things go if its not on the news you will know all went well
     
  5. scubabiker

    scubabiker NITROJUNKIE

    Messages:
    7,321
    Who do you know?! My friends only have old russian and german bikes!
    Tried changing the relay :p if you cant find the relay the bike is junk so you can just give it to me...
    What is it a very early triumph?
     
  6. scubabiker

    scubabiker NITROJUNKIE

    Messages:
    7,321
    Although thats what? A villiers motor? Hmmm..
     
  7. gilburton

    gilburton Active Member

    Messages:
    558
    I think it's a lucas carbide setup. When you still had to MOT them the lamp was only considered decorative so wasn't tested.
    I shouldn't think you would be out at night anyway but if you want emergency lighting clip on modern bicycle LED lights would be enough for bad weather to warn others you are there.
    You should get app 2.5-3 hrs duration on one filling of carbide to 1 refill of water.
    I assume years ago they used to carry some spare if travelling a long way at night.
    I wouldn't convert them.
    They are a lot brighter than equivilent electric lamps of the time and you can warm your hands on them lol
    They were used in mines so not that dangerous.
     
    Last edited: Feb 24, 2017
  8. twodogs

    twodogs Active Member

    Messages:
    497
    Rides:
    scooters
    its a bsa 250 made in 1926 it goes out on nice days sometimes it covers 100 miles
     
    MiNoR cOnFuSiOn and scubabiker like this.

Share This Page