A switch or rail box for railway rails that include a system for sealing a portion of a location where the rail enters or exits the box. The flight arm assemblies include a pair of opposing flight arms positioned on either side of the chain with the flight arms each including an elongated body formed with and extending from an integral base and a vertical sprocket opening formed in the integral base. The first beam has a wavelength less than a predetermined wavelength. An attempt can be made to access wireless wide area network services. The angle-adjustable electric plug is combined with the second opening of the hollow housing. Hydraulic pressure blasted at cavern wall with carrier medium fluid possessing variable frequency automated capacitive radio frequency dielectric heating properties will be used to enlarge cavern size.