Old tube track, slanted Ogauge 27"r

[richardm47]

I have been given a large numer of "really old" O gauge 27"r tubular track.  It is slanted outside to inside.  Just curious about its history.  
Sorry I tried to attach a photo, but it didn't....

Over the past several years, I have been collecting "unwanted" trains from our O gauge club  (Oregon Electric O-gaugers) and puttig together sets. We donate them to a local charity just befor Christmas.  It is very rewarding

 

[pennytrains]

Banked curves were designed primarily for clockwork trains without any kind of speed control.  They also were helpful if you had a speed demon in the family when trains went electric.  

[ADCX Rob]

richardm47

I have been given a large numer of "really old" O gauge 27"r tubular track.

I'm not familiar with any of the O-54 Lionel or K-Line O27 profile track that had superelevated ties. An accurate measurement of thes O-54 sections will reveal it is actually 25.88" radius, not quite 27".

[8ntruck]

Didn't Marx make an odd curve size super elevated track at one time?

[Laurastom]

American Flyer made banked curve track. Theirs was the standard AF 40"diameter. If you want to see it the AF 1937 catalog has pictures and a description.

[ADCX Rob]

Laurastom

American Flyer made banked curve track. Theirs was the standard AF 40"diameter...

And, it was full "O" profile, not the shorter/lower O-27.

[pennytrains]

Take a look at this page on the Ives Toy Train Society's website: https://www.ivestrains.org/CD/wide_gauge/Accessories/misc/htmlfiles/Track_1.htm

Since Ives was the originator of Lionel's O27 track system (Lionel-Ives, then Winner, Lionel Junior and eventually O27) it just may be a product of the Bridgeport factory.