Abstract: A scraper removes debris from under a work table, particularly slag resulting from cutting of metal. A pair of parallel tracks extends along opposite sides of a collection area under the table. A blade carriage is carried on the tracks and driven between forward and rearward positions. A pair of arm assemblies are connected to opposite sides of the blade and pivotally mounted to the carriage for moving the blade between a scraping position and a retracted position. A forward notch on each of the tracks is contacted by the arm assembly after reaching the forward position to cause the arm to move the blade from the scraping position to the retracted position during rearward movement. A rearward notch on each of the tracks is contacted by the arm assembly after reaching the rearward position and commencing forward movement to cause the arm to move the blade from the retracted position to the scraping position. The carriage is moved by continuous cables.

Abstract: A torch cutter exhaust system has a torch and an exhaust shroud at least partially encircling a discharge tip of the torch and mounted to the torch for movement therewith. The shroud is a crescent-shaped enclosure having an intake port and an output port. A table is located beneath the torch to support a material while the material is being cut by the torch. A gantry, movably mounted to the table, supports the torch and exhaust shroud. A duct, mounted to the gantry, connects the exhaust shroud with a flexible exhaust hose located alongside the table. The output end of the hose connects to a vacuum source to create low pressure near the discharge tip of the torch. The input end of the exhaust hose moves in unison with the gantry. The exhaust hose is supported by a wheel assembly that moves in response to the motion of the gantry.

Abstract: A torch cutter exhaust system has a torch and an exhaust shroud at least partially encircling a discharge tip of the torch and mounted to the torch for movement therewith. The shroud is a crescent-shaped enclosure having an intake port and an output port. A table is located beneath the torch to support a material while the material is being cut by the torch. A gantry, movably mounted to the table, supports the torch and exhaust shroud. A duct, mounted to the gantry, connects the exhaust shroud with a flexible exhaust hose located alongside the table. The output end of the hose connects to a vacuum source to create low pressure near the discharge tip of the torch. The input end of the exhaust hose moves in unison with the gantry. The exhaust hose is supported by a wheel assembly that moves in response to the motion of the gantry.