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  2. Mechanical connections - Wikipedia

    en.wikipedia.org/wiki/Mechanical_connections

    Rebar coupler. Mechanical couplers can be advantageous in comparison with conventional methods of lap splicing because of the requirement for less steel for overlapping. It is more effective in the seismic detailing to avoid reinforcement congestion problems. [3] The couplers are also used in pre-cast construction. [4]

  3. Thermocouple - Wikipedia

    en.wikipedia.org/wiki/Thermocouple

    Thermocouples are often used at high temperatures and in reactive furnace atmospheres. In this case, the practical lifetime is limited by thermocouple aging. The thermoelectric coefficients of the wires in a thermocouple that is used to measure very high temperatures may change with time, and the measurement voltage accordingly drops.

  4. Coupling - Wikipedia

    en.wikipedia.org/wiki/Coupling

    An improvised flexible coupling made of car tyre pieces connects the drive shafts of an engine and a water pump. This one is used to cancel out misalignment and dampen vibrations. Rotating coupling. A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. The primary purpose of couplings is ...

  5. Power dividers and directional couplers - Wikipedia

    en.wikipedia.org/wiki/Power_dividers_and...

    Two symbols used for directional couplers. The symbols most often used for directional couplers are shown in figure 1. The symbol may have the coupling factor in dB marked on it. Directional couplers have four ports. Port 1 is the input port where power is applied. Port 3 is the coupled port where a portion of the power applied to port 1 appears.

  6. Railway coupling - Wikipedia

    en.wikipedia.org/wiki/Railway_coupling

    The Wedglock coupler is named for the pneumatic wedges that lock the moving parts of the coupler head in the engaged position. It is the standard automatic coupler used on London Underground trains. The coupler was introduced in 1936 [56] and is manufactured by William Cook Rail [57] and Voith. [58]

  7. Magnetic coupling - Wikipedia

    en.wikipedia.org/wiki/Magnetic_coupling

    Some aquariums use magnetic drive pumps, which have a magnetic coupling between the motor on the dry side of an aquarium wall and the propeller or impeller in the water on the other side of the wall. [4] This coupling features two face-to-face magnetized disks: the driving magnet on the dry side, and the driven magnet on the underwater side.

  8. Rebar - Wikipedia

    en.wikipedia.org/wiki/Rebar

    Mechanical couplers are an effective means to reduce rebar congestion in highly reinforced areas for cast-in-place concrete construction. These couplers are also used in precast concrete construction at the joints between members. The structural performance criteria for mechanical connections varies between countries, codes, and industries.

  9. Air-line fitting - Wikipedia

    en.wikipedia.org/wiki/Air-line_fitting

    A female coupler is used on the supply side, and a male nipple is used on the receiving side. Fitting profiles have identifiable geometry on the male end, but care must be taken to use a compatible coupler. Couplers use springs and balls to lock mating nipples into place.