What thread is used on most motor oil bottles?

[mechtech]

I used to work at Illinois Bottle [Arrow Plastics] and made a heck of a lot of blow molded bottles.
The threads are called an 'M' [modified] thread. the bottom of the thread is flat, for superior grab.

 

[UncleS2]

"redneck way would be to hot glue two oil bottle caps together then drill a hole in the middle. Your glue job would have to be perfect to prevent any leaks"

Now see, that's one heckuva good idea, & if we can find a glue that will actually work it's a *great* idea.

I was thinking in terms of drilling out 2 caps, then connecting them with one of those big copper grommets for tarps. Problem is, I don't have a drill bit that big, or the copper grommets, or the "crimp it with a hammer" tool for that. Guess I'm just too "old school" & seldom think of adhesives.

So, what kind of glue? Hot glue? Epoxy? JB Weld? Super Glue?

If we could get a *good* glue bond, then drill it, then wrap the outside with big shrink wrap, or good electrical tape, or duct tape, it would work perfectly & be Free!

Almost forgot: Speaking of "good to the last drop" oil drainers:
Found the Ketchup Saver at a kitchen knick-knack store in Longview on Friday- cost was $3, & it has *3* different threads in each end!

I never knew about the multiple threads. That alone makes it worth $2-$3, IMO. Heck, the largest thread might screw onto a gallon or 5-qt motor oil jug- but it looks kinda small. Gotta go try that now!

So, keep on lookin' & figurin'- no telling what you might find, or invent!

 

[NJC]

eljefino;

That lamp is a thing of beauty.

 

[9c1]

Hot melt the bottle caps together. I heated an old screwdriver and ran it over the edges of the cap. Works just fine.
If one wanted to be real slick, there are plastic welding tools available which will do the same thing.
Terry

 

[eljefino]

I also have a 5w20 lamp, I run a compact flourescent in it.

You wouldn't believe the energy it saves!

I run extended changes too.

 

[roadrunner@rps]

If it is the same as a coke bottle why not use one of those whirlpool generators. http://shop.store.yahoo.com/insectlore/tornadotube.html Can be found in just about any children's science store.

 

[UncleS2]

Roadrunner, that's *It*! Home run! I never saw or heard of those before now.

Now if I could just find a children's science store.

 

[GMGuy]

Toys R Us.

Alex.

 

[kc8adu]

quote:

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Originally posted by eljefino:

I also have a 5w20 lamp, I run a compact flourescent in it.

You wouldn't believe the energy it saves!

I run extended changes too.

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compact fluorescents have cold start issues.
maybe that 100w light emitting resistor keeps the 20w50 flowing well at low temps!

 

[kc8adu]

back on topic.the only glue i recall working well on polyethlene is goop or rtv.trick is getting the caps totally oil free.the back to back caps would probably work ok.

 

[UncleS2]

I recently found the Tornado Tube at an educational supply store. Looks like the perfect "1 on 1" oil bottle drain system. Unfortunately, my Ketchup Saver leaks at the joint between the "halves". Worst part is I can see no reason whatever for the complexity on the KS

. The Tornado Tube? Looks like there's nothing to go wrong!

 

[XS650]

quote:

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Originally posted by tom slick:
it's either a 24mm or 28mm bottle cap thread.
www.plasticbottle.com might be able to help.

what about some hose that fits snug on the bottles

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http://www.plasticbottle.com/techinfo/spi.html

Same site, handy chart.

 

[TallPaul]

I would make the lamp out of a gallon jug and put some pea gravel in the bottom for ballast.

Love the glue the caps together idea. My choice is Household Goop.

BTW Exxon Superflow has a wide mouth cap (as does/did some Castrol). Actually the Exxon Superflow bottle I have is just right for most normal sized bottle necks to fit inside of, so that is what I was using for my collector bottle to drain empties.

 

[XS650]

quote:

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Originally posted by TallPaul:
I would make the lamp out of a gallon jug and put some pea gravel in the bottom for ballast.

Love the glue the caps together idea. My choice is Household Goop.

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That's a tough call, Household Goop because you use the lamp in you house, or Automotive Goop because you used car oil containers?

 

[Gary Allan]

quote:

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Originally posted by roadrunner@rps:
If it is the same as a coke bottle why not use one of those whirlpool generators. http://shop.store.yahoo.com/insectlore/tornadotube.html Can be found in just about any children's science store.

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If you order the JUMBO version, you can do Tornado® fuel saver infocommercials. Just substitute a 5 gallon water bottle.