Abstract: An advancing unit for a cleaning spiral, which can be rotated by a motor about its longitudinal axis, of a pipe cleaning machine, such as, for example, a pipe cleaning machine having a drum. The advancing unit includes a drive device, which produces the advancement of the cleaning spiral, with at least two clamping parts, wherein at least one clamping part thereof can be brought into a clamping position against the cleaning spiral in such a manner that the clamping parts press against the cleaning spiral, so that an advancement of the cleaning spiral is generated in the case of a rotating cleaning spiral. The advancing unit further comprises a control device for controlling the advancement of the cleaning spiral by means of at least one of the clamping parts as well as a safety device, by which at least one of the clamping parts can be brought out of its clamping position against the cleaning spiral.

Abstract: An advancing unit for a cleaning spiral, which can be rotated by a motor about its longitudinal axis, of a pipe cleaning machine, such as, for example, a pipe cleaning machine having a drum. The advancing unit includes a drive device, which produces the advancement of the cleaning spiral, with at least two clamping parts, wherein at least one clamping part thereof can be brought into a clamping position against the cleaning spiral in such a manner that the clamping parts press against the cleaning spiral, so that an advancement of the cleaning spiral is generated in the case of a rotating cleaning spiral. The advancing unit further comprises a control device for controlling the advancement of the cleaning spiral by means of at least one of the clamping parts as well as a safety device, by which at least one of the clamping parts can be brought out of its clamping position against the cleaning spiral.

Abstract: A device for inoculating fluid conducted through pipes includes a reservoir configured to hold an inoculant. The reservoir includes an outlet through which the inoculant is feedable to at least one of the pipes and an inlet configured to route compressed air into an interior of the reservoir. A capillary can be used to conduct the inoculant during inoculation. A flushing device can be provided to flush the pipes. A shared device for generating and/or storing compressed air can supply compressed air for inoculating the fluid and/or flushing the pipes.

Abstract: A holding device for a flanging tool includes two clamping parts movable towards one another to respective clamping positions. A stop is configured to abut, in an abutment position, an end of a pipe to be flanged. An actuating mechanism is configured to move the clamping parts into the respective clamping positions so as to clamp the pipe to be flanged. The actuating mechanism is coupled to the stop such that actuation of the actuating mechanism moves the stop out of the abutment position.

Abstract: A device for inoculating fluid conducted through pipes includes a reservoir configured to hold an inoculant. The reservoir includes an outlet through which the inoculant is feedable to at least one of the pipes and an inlet configured to route compressed air into an interior of the reservoir. A capillary can be used to conduct the inoculant during inoculation. A flushing device can be provided to flush the pipes. A shared device for generating and/or storing compressed air can supply compressed air for inoculating the fluid and/or flushing the pipes.

Abstract: A device for inoculating fluid conducted through pipes includes a reservoir configured to hold an inoculant. The reservoir includes an outlet through which the inoculant is feedable to at least one of the pipes and an inlet configured to route compressed air into an interior of the reservoir.

Abstract: A holding device for a flanging tool includes two clamping parts movable towards one another to respective clamping positions. A stop is configured to abut, in an abutment position, an end of a pipe to be flanged. An actuating mechanism is configured to move the clamping parts into the respective clamping positions so as to clamp the pipe to be flanged. The actuating mechanism is coupled to the stop such that actuation of the actuating mechanism moves the stop out of the abutment position.

Abstract: A device for inoculating fluid conducted through pipes includes a reservoir configured to hold an inoculant. The reservoir includes an outlet through which the inoculant is feedable to at least one of the pipes and an inlet configured to route compressed air into an interior of the reservoir.

Abstract: A manually operated sander including a motor-driven grinding plate for treating a workpiece, and a device (2) for releasably clamping abrasive paper to the grinding plate, with the clamping device (2) having a clamping surface element (9) and a clamping stirrup (11) eccentrically pivotable with respect to the clamping surface element (9) for securing at least one end region (16) of the abrasive paper (3), with a gap (S) between a pivotal path (B) of the clamping stirrup (11) and the clamping surface element (9) substantially closing toward a region of the clamping surface element (9) that cooperates with the clamping stirrup (11) for clamping the at least one end region (16) of the abrasive paper (3).

Abstract: A sander including a motor-driven rectangular base plate (1), and a locking mechanism (2) for releasably attaching a sanding pad (3) to the base plate (1) and including at least one pawl (6, 7) provided on each of the font side (21) of the base plate (1) and the sanding pad (3) and having a contact surface (20) having a longitudinal extent a length of which corresponds to from 0.2 to 1.3 times of a width (b) of the front side (21) of the base plate, with contact surfaces (20) being movable relative to each other in opposite direction for effecting attachment and detachment of the sanding pad (3) to and from the base plate (1).

Abstract: A hand-guided and operated electrically-powered hand tool, in particular a belt sander or the like, is comprised of a working tool part (2) projecting from a housing for the working of a workpiece. The housing (1) has on the side facing away from the working tool part (2) a handle (4) for guiding the tool. Planar surfaces on bearing surfaces (5) arranged on the handle provide for stable bearing of the electrically-powered hand tool in a change position. In the change-position, there is no contact between the working tool part and the workpiece, so that uncomplicated replacement of the tool part is possible.

Abstract: A manually operated sander including a motor-driven grinding plate for treating a workpiece, and a device (2) for releasably clamping abrasive paper to the grinding plate, with the clamping device (2) having a clamping surface element (9) and a clamping stirrup (11) eccentrically pivotable with respect to the clamping surface element (9) for securing at least one end region (16) of the abrasive paper (3), with a gap (S) between a pivotal path (B) of the clamping stirrup (11) and the clamping surface element (9) substantially closing toward a region of the clamping surface element (9) that cooperates with the clamping stirrup (11) for clamping and end region (16) of the abrasive paper (3).

Abstract: A sander including a motor-driven rectangular base plate (1), and a locking mechanism (2) for releasably attaching a sanding pad (3) to the base plate (1) and including at least one pawl (6, 7) provided on each of the front side (21) of the base plate (1) and the sanding pad (3) and having a contact surface (20) having a longitudinal extent a length of which corresponds to from 0.2 to 1.3 times of a width (b) of the front side (21) of the base plate, with contact surfaces (20) being movable relative to each other in opposite direction for effecting attachment and detachment of the sanding pad (3) to and from the base plate (1).