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The diagram from Beard's 1897 coupler patent [1]. Janney couplers were first patented in 1873 by Eli H. Janney (U.S. patent 138,405). [2] [3] Andrew Jackson Beard was amongst various inventors that made a multitude of improvements to the knuckle coupler; [1] Beard's patents were U.S. patent 594,059 granted 23 November 1897, which then sold for approximately $50,000, and U.S. patent 624,901 ...
Magpul Industries Corporation is an American designer and manufacturer of high-tech polymer and composite firearms accessories like M-LOK.Magpul Industries takes its name from its first product, the MagPul (Magazine Puller), an accessory for the STANAG magazines used by NATO armed forces, which aids users in pulling magazines from pouches.
PMAG can refer to: Presidential Management Alumni Group, non-profit organization; Provisional Military Advisory Group, original name of the Korean Military Advisory Group; A line of polymer rifle magazines manufactured by Magpul Industries
A 10 dB 1.7–2.2 GHz directional coupler. From left to right: input, coupled, isolated (terminated with a load), and transmitted port. A 3 dB 2.0–4.2 GHz power divider/combiner. Power dividers (also power splitters and, when used in reverse, power combiners) and directional couplers are passive devices used
FK-15-10, which is compatible with the Scharfenberg type 10 coupler; metros and suburban railways: FK-9-6; streetcars and narrow gauge railcars: FK-5.5-4 and FK-3-2.5; As of 2020 Wabtec is working on an Digital automatic coupling (DAC) based the Schwab coupler, a possible replacement of the screw couplers in the European rail freight service. [33]
Earlier models can be retro-fitted with #5 or #146 couplers by cutting off the couplings originally fitted and replacing with a draft box and the appropriate Kadee unit. Where problems arise, an underset or overset coupling shank can assist. [2] When the patent for those couplers expired, several manufacturers have copied it. [1]
The second category involves two or more dies used to hammer a round workpiece into a smaller diameter. This process is usually called "rotary swaging" or "radial forging". Tubes may be tagged (reduced in diameter to enable the tube to be initially fed through the die to then be pulled from the other side) using a rotary swager, which allows ...
Rat-race couplers are used to sum two in-phase combined signals with essentially no loss or to equally split an input signal with no resultant phase difference between its outputs. It is also possible to configure the coupler as a 180 degree phase-shifted output divider or to sum two 180 degree phase-shifted combined signals with almost no loss.