Abstract: A cleaner to conduct dust-removing by jetting air from a dust-removing head 1 to a cleaned face 11 of a work W having the cleaned face 11 of three-dimensional configuration, in which the dust-removing head 1 is provided with a work-corresponding face 1a of three-dimensional offset configuration parted from the three-dimensional configuration of the cleaned face 11 for a small dimension G.

Abstract: A cleaner head having a discharging slit 6 on the center and sucking slits 7 on left and right on a corresponding wall portion 15 facing a dust-removed face 10, and, outer extended lines L7 of the pair of sucking slits 7 are inclined as to mutually come close and intersect as departed from the corresponding wall portion 15.

Abstract: In a cleaner apparatus for steel plate provided with a brush roll 1 driven to rotate to remove foreign matter D from a surface Wa of a steel plate W to be conveyed, a magnet bar 3 to attract iron powder d among the foreign matter D stuck to the brush roll 1 by magnetic force, a wiping cloth 5 disposed between the brush roll 1 and the magnet bar 3 to remove the foreign matter D attracted by the magnet bar 3; the wiping cloth 5 of belt shape is disposed parallel to an axis L1 of the brush roll 1.

Abstract: A cleaner head having a discharging slit 6 on the center and sucking slits 7 on left and right on a corresponding wall portion 15 facing a dust-removed face 10, and, outer extended lines L7 of the pair of sucking slits 7 are inclined as to mutually come close and intersect as departed from the corresponding wall portion 15.

Abstract: A cleaner to conduct dust-removing by jetting air from a dust-removing head 1 to a cleaned face 11 of a work W having the cleaned face 11 of three-dimensional configuration, in which the dust-removing head 1 is provided with a work-corresponding face 1a of three-dimensional offset configuration parted from the three-dimensional configuration of the cleaned face 11 for a small dimension G.

Abstract: In a cleaner apparatus for steel plate provided with a brush roll 1 driven to rotate to remove foreign matter D from a surface Wa of a steel plate W to be conveyed, a magnet bar 3 to attract iron powder d among the foreign matter D stuck to the brush roll 1 by magnetic force, a wiping cloth 5 disposed between the brush roll 1 and the magnet bar 3 to remove the foreign matter D attracted by the magnet bar 3; the wiping cloth 5 of belt shape is disposed parallel to an axis L1 of the brush roll 1.

Abstract: A casing having an air discharging chamber and an air sucking chamber is provided with a first jetting nozzle and a second jetting nozzle on the underside thereof. The first jetting nozzle and the second jetting nozzle jet supersonic airs such as to approach each other. A sucking nozzle is located between the first jetting nozzle and the second jetting nozzle to allow the working air to be sucked in the casing.

Abstract: A stepless-speed-changer engine brake controller for a vehicle having detection means for detecting as an offset an angle displacement from the maximum opening to an actual opening in an accelerator opening variation region where the throttle opening in made zero, detection means for detecting a vehicle speed, and control means for inputting the offset and the vehicle speed from the respective detection means and for controlling the speed ratio of said stepless-speed-changer in such a manner that an engine brake torque varies according to an increase or a decrease of the offset and the vehicle speed.

Abstract: A device for detecting whether an engine brake condition exists includes a memory for storing the rotating speed of the engine corresponding to the degree of opening of the throttle valve, a detector for detecting the degree of opening of the throttle valve, a detector of the actual rotating speed of the engine, and a device for determining that the engine is an engine brake state when the actual speed of the engine corresponding to the actual degree of opening of the throttle valve exceeds the speed of the engine stored in the memory.

Abstract: A method of heating a long metal product to a desired temperature by an induction heating coil while continuously moving the long metal product longitudinally. The long metal product thus heated attains a uniform temperature throughout its entire length. For this purpose, the space enclosed by the induction heating coil is hypothetically divided into a plurality of sections in the direction in which the long metal product travels. The temperature of the long metal product in each hypothetically divided section is estimated by calculation from the temperature of the long metal product at the inlet of the induction heating coil. Based on the estimated temperatures, the power supplied to the induction heating coil is controlled so that the temperature of the long metal product agrees with the desired temperature at the outlet of the induction heating coil.