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daboyleroy
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Dean and Adams
Adams was the manager for the London arms manufacturers George & John Deane. On August 22, 1851, he was granted a British patent for a new revolver design.
The .436 Deane and Adams was a five-shot percussion (cap-and-ball) revolver with a spurless hammer, and the first revolver with a solid frame. The revolver used a double-action only system in which the external hammer could not be cocked by thumbing it back, like most other pistols of the era, but instead cocked itself when the trigger was pulled. This made it possible to fire the gun much more rapidly than contemporary single-action revolvers, such as the Colt, which had to be cocked before each shot.
Deane and Adams' revolver was shown at the Great Exhibition of 1851 and subsequently approved by the British Army's Small Arms Committee in addition to being adopted by the East India Company for use by their cavalry. Orders for the revolver were great enough to prompt the Deane brothers to make Adams a partner in their firm, which became Messrs. Deane, Adams, and Deane.
Although highly regarded, the hand-crafted Adams revolver was more expensive than Colt's mass-produced guns. It lacked a recoil shield behind the cylinder, which left the shooter's hand subject to powder burns resulting from "blowback" caused by the sometimes unpredictable black powder of the era. The lack of a hammer spur was criticized since the longer trigger pull of the Adams made it less accurate than the Colt. Furthermore, the Adams' nipples, upon which the percussion caps were set, were unhardened and sometimes burst upon firing.
Seriously, what is it called? 
