Lever fulcrum to where the output force is applied (point "B"), then the lever amplifies the input force. On the other hand, if the distance "a" from the fulcrum to the input force is less than the distance "b" from the fulcrum to the output force, then the lever reduces the input force. The use of velocity in the static analysis of a lever is an application of the principle of virtual work. A lever is modeled as a rigid bar connected to a ground frame by a hinged joint called a fulcrum. The lever is operated by applying an input
Colt Ring Lever rifles a year after acquiring fifty First Model rifles, Colonel Harney remarked that all but two were in good working order. Later in July 1839, however, a surprise Seminole attack led to the loss of thirty Ring Lever rifles, though fourteen were eventually recovered. In spite of the rifle's reliability problems, support for Colt's rifles was garnered from field officers, especially from Lieutenant Colonel Harney. Harney commented on Colt's Ring Lever rifle favorably, stating: "I honestly believe that, but for these arms, the Indians would now be luxuriating in the Everglades of Florida." Colt capitalized on Harney's testimony to produce a