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Mechanical rebar connections, also known as mechanical splices or mechanical coupler, are used to join lengths of rebar together to transfer forces from one steel rebar to another. [1] [2] Rebar coupler. Mechanical couplers can be advantageous in comparison with conventional methods of lap splicing because of the requirement for less steel for ...
Hybrid ring coupler in planar format. The hybrid ring coupler, also called the rat-race coupler, is a four-port 3 dB directional coupler consisting of a 3λ/2 ring of transmission line with four lines at the intervals shown in figure 12. Power input at port 1 splits and travels both ways round the ring.
Steel wire used to secure rebar before it is set in concrete. A centimeter rule is provided for reference. Rebar cages are fabricated either on or off the project site commonly with the help of hydraulic benders and shears. However, for small or custom work a tool known as a Hickey, or hand rebar bender, is sufficient.
Lapping is a machining process in which two surfaces are rubbed together with an abrasive between them, by hand movement or using a machine. Lapping often follows other subtractive processes with more aggressive material removal as a first step, such as milling and/or grinding .
The last link is the floating link, which is also called a coupler or connecting rod because it connects an input to the output. Assuming the frame is horizontal there are four possibilities for the input and output links: [2] A crank: can rotate a full 360 degrees; A rocker: can rotate through a limited range of angles which does not include 0 ...
The rat-race coupler has four ports, each placed one-quarter wavelength away from each other around the top half of the ring. The bottom half of the ring is three-quarter wavelengths in length. The ring has a characteristic impedance of factor 2 {\displaystyle {\sqrt {2}}} compared to port impedance.
Norwegian coupler, also known as chopper or Jones coupler; pin and cup coupler (WABCO N-Type) SA-3, also known as SovietAuto-3, AK69e, CA-3, Russian or Willison coupler; Scharfenberg coupler, also known as Dellner, Schaku or Voith coupler While different Scharfenburg couplers may be mechanically compatible, they may be electrically incompatible.
For hoses and piping, a quick connect fitting, also called a push fitting or Quick Connect Coupling, is a coupling used to provide a fast, make-or-break connection of gas or liquid transfer lines.