DISRAELI DOCUMENTS

French Patent # 792,639

French Patent 792,639 - Westminster Route main image

Although there are several designs shown on this patent, the key mechanism is the one shown in the picture above - featuring a cable, rigidly clamped to the derailleur body, but running over a moving roller in domed cover. This was the signature Westminster derailleur, and they were popular enough to ensure that, even today, you still come across them fairly frequently.


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