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Rolling-block breech Joseph Rider's 1865 patent drawings. A rolling-block action is a single-shot firearm action where the sealing of the breech is done with a specially shaped breechblock able to rotate on a pin. [1] The breechblock is shaped like a section of a circle.
In a rolling block action, the breechblock takes the form of a part-cylinder, with a pivot pin through its axis. The operator rotates or "rolls" the block to open and close the breech; it is a simple, rugged, and reliable design.
Falling-block action military rifles were common in the 19th century. They were replaced for military use by the faster bolt-action rifles, which were typically reloaded from a magazine holding several cartridges. [2] A falling-block breech-loading rifle was patented in Belgium by J. F. Jobard in 1835 using a unique self-contained cartridge. [3]
In a rolling block action, the breechblock takes the form of a part-cylinder, with a pivot pin through its axis. The operator rotates or "rolls" the block to open and close the breech; it is a simple, rugged and reliable design.
The sliding action is perpendicular to the axis of the barrel. When the breechblock slides down to expose the breech, it is referred to as a falling-block, as used in the Sharps rifle. A sliding block is common in artillery. A vertical sliding block rises and falls while a horizontal sliding block slides to one side. It is a strong design.
In 1865, he was issued the first patent for what would evolve into the Remington rolling block action. [2] The Remingtons continued to invest in Rider's work, and met with Ordnance Department officials in the hope of interesting them in this new design.
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Either 1864 or 1865, Remington Engineer Joseph Rider improved the split breech design to create the rolling-block action which was named the "Remington System". [10] [14] The medium-strength action developed some headspace issues with new smokeless powders coming into use by the late 1890s. A heavier-style action was produced for later ...