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The Type 94 Nambu pistol was designed by Kijiro Nambu after he retired from the Japanese army and founded the Nambu Rifle Manufacturing Company. [5] Design of the Type 94 Nambu pistol commenced in 1929 with the goal of reducing the bulk and price of previous Nambu designs. [3]
8 inches (200 mm) Harveyized nickel-steel plate from 1894 Harvey armor was a type of steel naval armor developed in the early 1890s in which the front surfaces of the plates were case hardened . The method for doing this was known as the Harvey process , and was invented by the American engineer Hayward Augustus Harvey .
An extractor also performs the function of an ejector in revolvers. When the striking force applied to the ejector rod is hard and fast enough, the extractor will typically eject the empty case(s) from the cylinder. Some break-action shotguns are also designed to eject empty shells completely out of the chamber when the barrel is opened.
Nickel electroplating is a process of depositing nickel onto a metal part. Parts to be plated must be clean and free of dirt, corrosion, and defects before plating can begin. [3] To clean and protect the part during the plating process, a combination of heat treating, cleaning, masking, pickling, and etching may be used. [1]
The last wood-frame structures were machine shop building R-3 and shotgun shell loading building R-21 built in 1907. With the approach of World War I the company received large ammunition orders from the Russian Empire and from the United Kingdom of Great Britain and Ireland. Bullet manufacturing building R-6 was built of brick; and money from ...
For the testing and calibration of anti-tank guns, the term rolled homogeneous armour equivalency (RHAe) is used when giving an estimate of either the penetrative capability of a projectile or the protective capability of a type of armour which may or may not be steel. Because of variations in armour shape, quality, material, and case-by-case ...
The design and purpose of the vehicle determines the amount of armour plating carried, as the plating is often very heavy and excessive amounts of armour restrict mobility. In order to decrease this problem, some new materials ( nanomaterials ) and material compositions are being researched which include buckypaper , [ 2 ] and aluminium foam ...
Because nickel-plated Merwin and Hulbert pistols had the same cost as those without, it is rare to find Merwin and Hulbert revolvers with a blued finish. A key innovation was a rotating barrel design which allowed the user to rotate the barrel 90 degrees in order to pull the barrel and cylinder forward to remove the fired cartridge cases.