Vincent’s own Girdraulic fork used forged alloy blades for extra strength instead of the welded tube construction of the Brampton, and added hydraulic damping. The Brampton fork, later fitted to Vincents, was similar in concept to the Webb. Webb ever made any money from his invention is unlikely, as just about every British motorcycle manufacturer built its own fork following the basic Webb design. Advantages over the Druid included the option of a rotary friction damper and tapered coil springs for progressive compression. Most popular in terms of usage on pre-WWII British motorcycles was the Webb fork, which again used a parallelogram linkage to allow for suspension travel, usually controlled by a large central spring. Though some models included rebound springs, there was typically no provision for damping. Druid forks are recognizable as looking like a bicycle fork with a strengthening brace at the front and a couple of coil springs behind. Probably the earliest example of the parallelogram type is the Druid, patented posthumously in 1917 by the estate of one Arthur Drew. The types of girder forks found on motorcycles fall broadly into two main categories: parallelogram and leading link. With most following the same basic principals, they were, not surprisingly, very similar in design. Back when girder forks were status quo, various types were tried and developed.
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