Revolver many European gun-makers, in numerous designs and configurations. However, these weapons were difficult to use, complicated and prohibitively expensive to make, and as such they were not widely distributed. In 1836, an American, Samuel Colt patented the mechanism which led to the widespread use of the revolver, the mechanically indexing cylinder. According to Samuel Colt, he came up with the idea for the revolver while at sea, inspired by the capstan, which had a ratchet and pawl mechanism on it, a version of which was used in his guns to rotate the cylinder by cocking the hammer. This provided a
Colt Open Top Pocket Model Revolver White patent for metallic cartridges firearms manufacture expired (c. 1870) the Colt's Patent Fire Arms Manufacturing Company started working on its own metallic cartridge revolvers (Colt had previously been manufacturing the so-called Richards-Mason conversions). Thus, Colt introduced its first rear-loaders in 1871: the Colt House/Cloverleaf and the Colt Open Top Pocket Model Revolver. In the 1870s the firearms market was awash with cheaply made knockoffs of the .22 caliber Smith & Wesson Model One which sold for about $2. Colt's president Richard Jarvis decided it would not compete directly with the knockoffs; that its .22 would be of Colt quality.