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Picatinny rail. The 1913 rail (MIL-STD-1913 rail), also known as the Picatinny rail (1913 Picatinny rail etc.) is an American rail integration system designed by Richard Swan [1] that provides a mounting platform for firearm accessories. It forms part of the NATO standard STANAG 2324 rail. It was originally used for mounting of scopes atop the ...
A pivoted board, called a "smashboard", which could be operated to swing into position across the track. [2]: 136 The Reading Railroad used vane signals mounted on wooden towers. Painted boards (vanes) of various colors were moved into position to signify danger (stop), caution, and safety (proceed). The vanes were illuminated at night by lanterns.
A rail system mounted on top of a SIG SG 550 A dovetail rail on a rifle receiver for mounting a sight. A rail integration system (RIS; also called a rail accessory system (RAS), rail interface system, rail system, mount, base, gun rail, or simply a rail [1]) is a generic term for any standardized attachment system for mounting firearm accessories via bar-like straight brackets (i.e. "rails ...
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Heavier rail can support greater axle loads and higher train speeds without sustaining damage than lighter rail, but at a greater cost. In North America and the United Kingdom, rail is graded in pounds per yard (usually shown as pound or lb), so 130-pound rail would weigh 130 lb/yd (64 kg/m). The usual range is 115 to 141 lb/yd (57 to 70 kg/m).
Groundbait is a fishing bait that is either thrown or "balled" into the water in order to olfactorily attract more fish to a designated area (i.e. fishing ground) for more efficient catching via angling, netting, trapping, or even spearing and shooting. Groundbaits are typically scattered separately from the hook and usually before even casting ...
Trolling is a method of fishing where one or more fishing lines, baited with lures or bait fish, are drawn through the water at a consistent, low speed. This may be behind a moving boat, or by slowly winding the line in when fishing from a static position, or even sweeping the line from side-to-side, e.g. when fishing from a jetty.
Chod rig. The chod rig is a fishing rig for carp fishing, generally regarded as having three main advantages: the way in which it allows a bait to be displayed over soft mud, weed or debris; and the way its distinct shape allows the chosen bait (usually a buoyant substance) to be attached. The latter benefit is also generally utilised in the ...