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Free Ideas On Open Patents

Dual Mode dropout
Dual Mode dropout

Short Description Of Idea: Convertible horizontal/vertical dropout
A removable derailleur mount is designed so that it fills in most of the length of a horizontal dropout, leaving only a slot for a vertical dropout.

A complementary attachment would go on the left dropout, but would not have a derailleur mount, simply a device that fills in most of the horizontal slot.

Description from James Black:

The drawing shows a removeable derailleur mount attached to the infill
piece - one could accomplish the same thing, of course, with the
derailleur eye permanently attached to the dropout, although this
approach, per Steve's suggestion, seems like a more elegant solution.

As I ponder what's in this sketch, it seems like it could be a quite
effective solution, and fairly easy to accomplish on the fabrication
side, certainly simpler and lighter than sliding dropouts or eccentric
bottom brackets. I haven't thought much about how the removeable bit
is fastened in place, but that would not be rocket science.

James Black
Los Angeles, CA
Email: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
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Contact Person: James Black
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Date added: November 29, 2009, 4:17 pm    Hits: 247
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