Abstract: A peeling apparatus for at least partially removing an external circumferential surface of an approximately cylindrical body is provided. The peeling apparatus includes: a C-shaped or C-like shaped base body, which has two free ends to form a peripheral opening, the cylindrical body being insertable between the two free ends and positionable concentrically in relation to a center of an incircle defined by the internal face of the base body; at least one external bearing mounted on an external axis positioned at each of the free ends, the external bearing abutting the cylindrical body when the body is positioned concentrically in relation to the center of the incircle; at least one central bearing attached to or positioned on the base body, spaced apart from the free ends and on a central axis; and a blade holder into which a blade is insertable so that the blade extends beyond the incircle.

Abstract: A skiving apparatus is provided for at least partial removal of the surface of an least approximately tubular body having a center axis, in particular of a plastic pipe, comprising a clamp assembly having a center axis and at least one clamp member for clamping the skiving apparatus to the tubular body, a skiving assembly comprising a skiving arm unit, a skiving knife arrangement disposed at a first end of the skiving arm unit, and a skiving arm support that connects the clamp assembly to the skiving arm unit. The skiving arm unit is connected by its first and second ends to the skiving knife arrangement and the skiving arm support and is pivotable in the common plane with the center axis of the clamp assembly in such a way that the skiving knife arrangement keeps its orientation relative to the center axis of the clamp assembly in every pivoted position of the skiving arm unit.

Abstract: A peeling apparatus for at least partially removing an external circumferential surface of an approximately cylindrical body is provided. The peeling apparatus includes: a C-shaped or C-like shaped base body, which has two free ends to form a peripheral opening, the cylindrical body being insertable between the two free ends and positionable concentrically in relation to a center of an incircle defined by the internal face of the base body; at least one external bearing mounted on an external axis positioned at each of the free ends, the external bearing abutting the cylindrical body when the body is positioned concentrically in relation to the center of the incircle; at least one central bearing attached to or positioned on the base body, spaced apart from the free ends and on a central axis; and a blade holder into which a blade is insertable so that the blade extends beyond the incircle.

Abstract: A tool coupler for a clamping system, in particular for clamping a welding saddle to a plastic pipe, including a body having a drive end and an opposite output end, a first positive engagement feature being formed at the drive end and a second positive engagement feature being formed at the output end, the first positive engagement feature being adapted to engage a torque wrench to drive the body, and the second positive engagement feature being adapted to engage a slotted strap shaft of a tensioning ratchet of a clamping system to transfer torques by positive engagement.

Abstract: A machining device for machining the lateral surface of an approximately cylindrical object in portions thereof includes a chain for annularly surrounding the object to be machined. The chain consists of at least two hingedly connectable chain links, one of which is a tool holder having at least one tool for machining the lateral surface. The device also includes support rollers for rolling on the lateral surface. The at least one other chain link is a chain connecting link. The chain links are connectable in such a way that they form a closed chain ring around the object to be machined. The machining device further includes a feed adjuster capable of reversibly adjusting an axial position of facing ends of two chain links parallel to the axis of the closed chain ring relative to each other.

Abstract: A tool coupler for a clamping system, in particular for clamping a welding saddle to a plastic pipe, comprising a body having a drive end and an opposite output end, a first positive engagement means being formed at the drive end and a second positive engagement means being formed at the output end, the first positive engagement means being adapted to engage a torque wrench to drive the body, and the second positive engagement means being adapted to engage a slotted strap shaft of a tensioning ratchet of a clamping system to transfer torques by positive engagement.

Abstract: A machining device for machining the lateral surface of an approximately cylindrical object in portions thereof includes a chain for annularly surrounding the object to be machined. The chain consists of at least two hingedly connectable chain links, one of which is a tool holder having at least one tool for machining the lateral surface. The device also includes support rollers for rolling on the lateral surface. The at least one other chain link is a chain connecting link. The chain links are connectable in such a way that they form a closed chain ring around the object to be machined. The machining device further includes a feed adjuster capable of reversibly adjusting an axial position of facing ends of two chain links parallel to the axis of the closed chain ring relative to each other.

Abstract: A method to optimize the welding energy input into the heating coil of a heating coil fitting is disclosed. In particular, the invention pertains to a compensation method for the effects on the welding energy input from using a fundamental frequency outside the tolerance range for the AC welding voltage established for the heating coil fitting. A generator is one option to supply power to a device for the implementation of the invention-based method. It supplies an AC welding voltage to the heating coil with a fundamental frequency outside the tolerance range for the AC welding voltage as marked out for the heating coil fitting. Another option is especially the use of DC welding voltage for the heating coils of heating coil fittings. To execute the method, a welding power supply unit is connected to the contact elements of a heating coil fitting via connecting leads and connecting elements.

Abstract: The present invention relates to a skiving apparatus for at least partial removal of the outer circumferential surface of rotationally symmetric objects, in particular cylindrical plastic pipes, said apparatus containing a bell-shaped housing with a central longitudinal axis, said housing having a skiving recess which is coaxially aligned with the central longitudinal axis—and outwardly open at one end face of the bell-shaped housing via a feed opening. Disposed in said housing is a blade which projects into the skiving recess with its cutting edge aligned preferably parallel to the central longitudinal axis of said housing. According to the invention, the blade is mounted in a blade guide such that the blade is reversibly displaceable in the direction of the central longitudinal axis of the housing.

Abstract: A method to optimize the welding energy input into the heating coil of a heating coil fitting is disclosed. In particular, the invention pertains to a compensation method for the effects on the welding energy input from using a fundamental frequency outside the tolerance range for the AC welding voltage established for the heating coil fitting. A generator is one option to supply power to a device for the implementation of the invention-based method. It supplies an AC welding voltage to the heating coil with a fundamental frequency outside the tolerance range for the AC welding voltage as marked out for the heating coil fitting. Another option is especially the use of DC welding voltage for the heating coils of heating coil fittings. To execute the method, a welding power supply unit is connected to the contact elements of a heating coil fitting via connecting leads and connecting elements.

Abstract: In a method and apparatus for measuring the welding voltage at the heating coil of a heating coil fitting a welding current supply unit is connected to the connecting elements of the heating coil fitting by way of connecting lines and junction elements, and the welding voltage is detected by means of a voltage measurement unit. The welding voltage is detected at a respective contact of each of the two connecting elements of the heating coil fitting in electrically insulated relationship with respect to the connecting lines and the junction elements.

Abstract: Described is a paring device for cylindrical objects, in particular for plastic tubes, which comprises a plurality of rollers (7) assembled to form a running trough (3); a paring head (2) including at least one knife (5) and at least one guide roller (6), and a spindle drive (4) connecting the running trough (3) and the paring head (2). The spindle drive comprises a spindle guide provided with a slot-like opening and a spindle with an actuating handle (9) that is rotatable in the spindle guide, whereby the paring head and the running trough, between which the cylindrical object can be fixed, can be driven in relation to one another via the spindle. In order to enhance the handling of the paring device also for the treatment of saddle zones of cylindrical objects, the at least one guide roller (6) is supported in a bearing block (10) and freely rotating therein.

Abstract: Described is a paring device for cylindrical objects, in particular for plastic tubes, which comprises a plurality of rollers (7) assembled to form a running trough (3); a paring head (2) comprised of at least one knife (5) and at least one guide roller (6), and a spindle drive (4) connecting the running trough (3) and the paring head (2). The spindle drive comprises a spindle guide provided with a slot-like opening and a spindle with an actuating handle (9) that is rotatable in the spindle guide, whereby the paring head and the running trough, between which the cylindrical object can be chucked, can be driven in relation to one another via the spindle. In order to enhance the handling of the paring device also for the treatment of saddle zones of cylindrical objects, the at least one guide roller (6) is supported in a bearing block (10) and freely rotating therein.

Abstract: In a method and apparatus for measuring the welding voltage at the heating coil of a heating coil fitting a welding current supply unit is connected to the connecting elements of the heating coil fitting by way of connecting lines and junction elements, and the welding voltage is detected by means of a voltage measurement unit. The welding voltage is detected at a respective contact of each of the two connecting elements of the heating coil fitting in electrically insulated relationship with respect to the connecting lines and the junction elements.