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Friction, as from holster wear, quickly removes cold bluing, and also removes hot bluing, rust, or fume bluing over long periods of use. It is usually inadvisable to use cold bluing as a touch-up where friction is present. If cold bluing is the only practical option, the area should be kept oiled to extend the life of the coating as much as ...
Engineer's blue is prepared by mixing Prussian blue with a non-drying oily material (for example, grease).The coloured oil is rubbed onto a reference surface, and the workpiece is then rubbed against the coloured reference; the transfer (by contact) of the pigment indicates the position of high spots on the workpiece or conversely highlight low points. [1]
The .44-40 Winchester, also known as .44 Winchester, .44 WCF (Winchester Center Fire), and .44 Largo (in Spanish-speaking countries), was introduced in 1873 by the Winchester Repeating Arms Company. It was the first metallic centerfire cartridge manufactured by Winchester, and was promoted as the standard chambering for the new Winchester Model ...
The Colt Frontier or Frontier Six-Shooter was a Colt's 1873 "Model P" type revolver manufactured in .44-40 Winchester caliber instead of .45 Colt (in which configuration it was called the Single Action Army) so that it was compatible with Winchester Model 1873 ammunition. Production began in 1877. Colt Frontier Six-Shooter was the actual name ...
The Model 1878 had a larger frame than the Model 1877, which allowed it to fire larger and more powerful cartridges such as the .45 Colt and .44-40 Winchester, and used the same barrel & ejector parts as the Single Action Army revolver and a very similar cylinder. At one time, the factory modified Model 1878 cylinders for use in single-action ...
Colt Paterson. The Colt Paterson revolver was the first commercial repeating firearm employing a revolving cylinder with multiple chambers aligned with a single, stationary barrel. Its design was patented by Samuel Colt on February 25, 1836, in the United States, England and France, and it derived its name from being produced in Paterson, New ...
Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies. The use of codes is intended to convey essential information quickly and with minimal misunderstanding to staff while preventing stress and panic among visitors to the hospital.
Case-hardening. Colt Peacemaker, showing discoloration from case-hardening. Case-hardening or carburization is the process of introducing carbon to the surface of a low carbon iron or much more commonly low carbon steel object in order to enable the surface to be hardened. Iron which has a carbon content greater than ~0.02% is known as steel.