Abstract: A tool for removing solid deposited material from a surface to be cleaned, such as for cleaning material from the brake drums of motor vehicles and for removing the material, includes a member for loosening the deposited material and a connection to a vacuum source for removing the loosened material. The loosening member is a manually operable cutting head including an impact element located at one end of a tubular member. During use, the impact element performs a stroke-like movement. The other end of the tubular member forms a connection to the vacuum source.

Abstract: Apparatus for removing pollutants, particularly automotive exhaust gases, from work areas or the like is formed with an elongate stationary duct for exhausting pollutants therethrough and with a bearing bracket longitudinally movable along the stationary duct for connecting an exhaust hose to the duct adapted to receive pollutants. By movement of the bearing bracket along the duct, the exhaust hose may be moved to any one of a number of desired locations. The stationary duct is formed with displaceable sealing elements which are moved by the bearing bracket between a sealing position and a position allowing the hose to be placed in flow communication with the stationary duct as the bearing bracket is moved along the duct. Alternatively, the exhaust hose may be connected with a second elongate duct which is itself movably connected with the stationary duct through displaceable sealing elements.