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The longer 2 to 1 Lever is located on the right side of the locomotive, and the shorter Equal Lever on the left side. The Gresley conjugated gear is effectively an adding machine, where the position of the valve for the inside cylinder is the sum of the positions of the two outside cylinders, but reversed in direction.
The Rhino Passive Infrared Defeat System (also known simply as Rhino) was an early detonation Counter-IED system. It was mounted to the front of a vehicle and used heat to prematurely detonate any hidden improvised explosive devices (IEDs) while the vehicle was at a safe distance away from the blast.
IED Countermeasure Equipment (ICE): In the fall of 2004, the Army Research Laboratory (ARL) at White Sands Missile Range in New Mexico and New Mexico State University's Physical Science Laboratory developed a jamming system that uses low-power radio frequency energy to block the radio signals that detonate enemy IEDs.
An IED has five components: a switch (activator), an initiator (fuse), container (body), charge (explosive), and a power source (battery). An IED designed for use against armoured targets such as personnel carriers or tanks will be designed for armour penetration, by using a shaped charge that creates an explosively formed penetrator. IEDs are ...
These enable a 3-cylinder or 4-cylinder locomotive to be built with only two sets of valve gear. The best known is Gresley conjugated valve gear, used on 3-cylinder locomotives. Walschaerts gear is usually used for the two outside cylinders. Two levers connected to the outside cylinder valve rods drive the valve for the inside cylinder.
Counter-IED, or C-IED, is usually part of a broader counter-terrorism, counter-insurgency, or law enforcement effort. Because IEDs are a subset of a number of forms of asymmetric warfare used by insurgents and terrorists, C-IED activities are principally against adversaries and not only against IEDs. C-IED treats the IED as a systemic problem ...
In the early 1940s Lawrence had constructed a 4-6-2, four-cylinder locomotive in 2 1/2" gauge, Tugboat Annie, intending to use Baker valve gear. The complexity of the arrangement proved daunting, and Holcroft came to the rescue with a four-cylinder conjugated valve gear, a modification of the gear used on the Gresley's 120-degree cranks for ...
Cone distance in a bevel gear is the general term for the distance along an element of the pitch cone from the apex to any given position in the teeth. [1] Outer cone distance in bevel gears is the distance from the apex of the pitch cone to the outer ends of the teeth.