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Boring machines for the trenchless underground installation of generally horizontal pipes for water and sewage and conductors for electricity and communication signals; reciprocating impact piston rams for the displacement of soil and the pulling of pipes; reciprocating impact piston rams for the underground installation of pipes by means of steel pipe ramming; reciprocating impact piston rams for the splitting of pipes; power operated reciprocating impact piston ram parts, namely - expanding jackets for compressed air hoses, force-feed oilers, winch cables for pulling in pipes, mechanical and hydraulic cable grippers for pulling in pipes, ram rings and ram adapters, pipe splitting jackets and splitting wedges, pipe pulling winches, cutting teeth and strengthening pieces for use with ram pipes, and pedestal bearings for aligning reciprocating impact piston rams, sold as a unit
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Direction-finders with and without optical systems for aligning reciprocating impact piston rams, and electronic controls for the remote wireless control of the boring direction of reciprocating impact piston rams
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