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Making a Lamp: Cannot find a reducer

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  • Making a Lamp: Cannot find a reducer

    This isn't really a welding question but I was wondering if you guys have any idea where I can find a reducer that is 9/16" with 18 threads per inch on the outside and able to fit a standard lamp nipple on the inside. The two reducers I have came from two floor lamps that I found in the trash that I am making into a chandelier. The pipes from the floor lamps are 9/16" in diameter and that seems to be very rare in the lamp world. In order to complete the project I need six more of them. I have been to seven lamp repair shops and a bunch of hardware stores with no luck. I attached a couple pictures to give you an idea of what it looks like.Click image for larger version

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  • #2
    Not measuring, I think it is 1/4" NPT (National Pipe Thread) x 1/8" NPT. I think Home Depot has them. If not in Electrical, try plumbing. Old crow foot or less old ceiling pans used a stamped stud of this thread. They then used a bottle cap shaped or a U bent 1/8" thick strap with one thread top, the other bottom. Where are you? I think I got them on the shelf.
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    • #3
      Originally posted by WillieB View Post
      Not measuring, I think it is 1/4" NPT (National Pipe Thread) x 1/8" NPT. I think Home Depot has them. If not in Electrical, try plumbing. Old crow foot or less old ceiling pans used a stamped stud of this thread. They then used a bottle cap shaped or a U bent 1/8" thick strap with one thread top, the other bottom. Where are you? I think I got them on the shelf.
      I am in San francisco. I have been to every hardware store in the area. Standard lamp parts do not work. It is definitely 9/16-18 on the outside.

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      • #4
        I can make them but not until Saturday..Bob
        Bob Wright

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        • #5
          If you are measuring 9/16" and 18 tpi, then you are likely looking at a 3/8 non tapered pipe thread, not a 9/16-18 bolt thread. Pipe is measured as an ID, so it confuses the issue.
          Looks about like the one in the link here. http://www.mylampparts.com/Products/...__SL00413.aspx
          If that is the case, they are readily available, just asking for the wrong thing.

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          • #6
            Reducers and Bushings....

            Originally posted by BuffaloFan32 View Post
            This isn't really a welding question but I was wondering if you guys have any idea where I can find a reducer that is 9/16" with 18 threads per inch on the outside and able to fit a standard lamp nipple on the inside. The two reducers I have came from two floor lamps that I found in the trash that I am making into a chandelier. The pipes from the floor lamps are 9/16" in diameter and that seems to be very rare in the lamp world. In order to complete the project I need six more of them. I have been to seven lamp repair shops and a bunch of hardware stores with no luck. I attached a couple pictures to give you an idea of what it looks like.[ATTACH]34842[/ATTACH][ATTACH]34843[/ATTACH]
            Why don't you try these guys...??? is this what you are looking for..???..

            http://www.antiquelampsupply.com/cat...s-and-bushings

            They probably have some other stuff that you might find useful in your lamp making adventures...

            Welcome Aboard...
            .

            *******************************************
            The more you know, The better you know, How little you know

            “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

            Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

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            • #7
              Hello Bob, I might take you up on that but let me try some of the reducers these guys are finding on the internet.

              I have to say I am pretty skeptical about the reducers on the lamp websites you guys found. I have been to seven lamp repair shops and all of those guys had drawers of standard sized reducers and none of them fit.

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              • #8
                Originally posted by BuffaloFan32 View Post
                Hello Bob, I might take you up on that but let me try some of the reducers these guys are finding on the internet.

                I have to say I am pretty skeptical about the reducers on the lamp websites you guys found. I have been to seven lamp repair shops and all of those guys had drawers of standard sized reducers and none of them fit.
                Rather than rejecting those suppliers out of hand...

                You might consider contacting one or both of them and explaining your dilemna.. a short telephone conversation with an experienced supplier might be money very well spent...

                http://www.antiquelampsupply.com/contact.php

                The outcome might surprise you...

                Those folks deal with your type of problem many times a day and likely can help...

                Much as folks here deal with welding problems and applications...

                BTW... Here is a lamp fixture "Thread Reference" that you might find useful..

                http://www.antiquelampsupply.com/images/ThreadSizes.pdf
                Last edited by H80N; 01-06-2015, 09:43 AM.
                .

                *******************************************
                The more you know, The better you know, How little you know

                “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

                Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

                My Blue Stuff:
                Dynasty 350DX Tigrunner
                Dynasty 200DX
                Millermatic 350P w/25ft Alumapro & 30A
                Millermatic 200

                TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

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                • #9
                  Sorry if I came off as rude, I definitely did not reject the suppliers out of hand. As a matter of fact, I ordered some reducers from mylampparts.com this morning as Allan, who works at the shop, was very helpful. I am just skeptical because I have seen a ton of reducers at a bunch of different lamp shops in the last week and none of them fit. I will let you guys know if they work out. Thanks!

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                  • #10
                    Glad you are making progress...

                    you might check that "fixture thread reference" against the thread pitches of the bushing you are trying to match...
                    Last edited by H80N; 01-06-2015, 12:41 PM.
                    .

                    *******************************************
                    The more you know, The better you know, How little you know

                    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

                    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

                    My Blue Stuff:
                    Dynasty 350DX Tigrunner
                    Dynasty 200DX
                    Millermatic 350P w/25ft Alumapro & 30A
                    Millermatic 200

                    TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

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                    • #11
                      Just take you reducer to the hardware store and see if it starts in a 3/8" pipe fitting. It may not screw in all the way due to the tapered pipe threads, but you will then know.

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                      • #12
                        I received the reducer from mylampparts.com and it did not fit. I ordered a few other reducers from there and none of them fit either. Strangely, the reducer that Allan recommended fir the 9/16" 18tpi nut but not the pipe that fits on a 9/16" 18tpi bolt (it just slides in and out of the pipe without catching at all).

                        Bob, I will direct message you if you are still interested in making one of these.

                        Thanks for all your help!

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                        • #13
                          Fix you right up...Bob
                          Bob Wright

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                          • #14
                            There is probably a better way around whatever you are trying to do. Post up a couple of pictures. Otherwise AAMetalmaster is a great option for making a new one.

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                            • #15
                              Like this one?...Bob
                              Attached Files
                              Bob Wright

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