Abstract: Machine for machining an envelope surface of a cylindrical work piece includes a tubular cylindrical housing with a longitudinal axis and having an inner space extending from a first end of the housing, and with an axis offset from the housing axis, a shaft angularly displaceable in the inner space and provided with a recess, and a motor in the recess. A spindle is coupled to the motor and carries a first rotatable tool, a rotatable outer casing encloses the housing, and a lid is arranged for co-rotation with the casing and extends radially over the first end of housing with the lid having a central through opening with the peripheral surface. A second rotated tool is disposed on the peripheral surface, and a support device is adapted to hold the work piece between the tools. The shaft is arranged to cause the first tool to effect radial displacement relative to the second rotated tool.

Abstract: A machine for machining a flange on a work piece comprises a rotated tool, chucking equipment and feeding means for relative displacement between work piece and tool, a tubular cylindrical housing with longitudinal axis and an inner space, with an axis offset from the housing axis; a shaft with a recess in the inner space for angular displacement therein, a motor in the recess, a spindle coupled to the motor extending along the housing axis and cooperating with the chucking opening, the tool comprising a peripheral abrasive material at the central through opening, which extends axially beyond at least one of the lid surfaces, the shaft arranged in inner space for causing work piece to approach and contact the abrasive material at angular displacement of the shaft.

Abstract: Machine (10) for machining an envelope, surface of a cylindrical work piece (28) including a tubular cylindrical housing (13) with longitudinal axis and having an inner space (14) extending from a first end of the housing, and with an axis offset from the housing axis; a shaft angularly displaceable in said said inner space (14) and provided with a recess, a motor (25) in said recess; a spindle (26) coupled to said motor and carrying a first rotatable tool (28), a rotatable outer casing (15) enclosing said housing, a lid (30) arranged for co-rotation with casing and extending radially over said first end of housing with said lid having a central through opening (31) with peripheral surface (32), a second rotated tool (33) disposed on said peripheral surface (32), and support means (35) for holding said work piece between the tools, said shaft being arranged to cause said first tool to effect radial displacement relative to said second rotated tool (33).

Abstract: An machine (10) for machining a flange on a work piece (28) comprises a rotated tool (35), chucking equipment (27) and feeding means (20, 21) for relative displacement between work piece and tool, a tubular cylindrical housing (13) with longitudinal axis and an inner space (14), with an axis offset from the housing axis; a shaft with a recess insaid inner space (14) for angular displacement therein, a motor (25) in said recess; a spindle (26) coupled to said motor extending along said housing axis and cooperating with said chucking equipment; a rotatable outer casing (15) enclosing said housing, and a lid member (30) connected to casing and having a central through opening (31), said tool cmprising a peripheral abrasive material at the central through opening, which extends axially beyond at least one of the lid surfaces, the shaft (17) arranged in inner space (14) for causing work piece to approach and contact said abrasive material at angular displacement of the shaft.

Abstract: An abrasive machine includes a rotatably driven tool, chucking equipment for holding the work pieces and a feeding device for effecting relative displacement between the work piece and the rotatably driven tool. The machine further includes a tubular cylindrical housing, a shaft provided with a recess, a rotatable outer casing peripherally enclosing the housing, and a lid member connected to the casing and extending radially over a first end of the tubular cylindrical housing such that an inner surface of the lid members faces the first end of the housing. The rotatably driven tool includes abrasive material carried on the inner surface of the lid member. The shaft is arranged such that when the shaft executes an angular displacement, the work piece held by the chucking equipment is caused to approach and contact the abrasive material.

Abstract: A lathe includes a frame for supporting rotatable chucking equipment adapted to hold a work piece. The frame further supports at least one lathe tool for machining the work piece. The chucking equipment and the lathe tool are displaceable relative to each other in at least a radial direction. The lathe includes a housing attached to the frame, with the housing extending about a longitudinal axis and having a cylindrical inner space extending from one end of the housing. The inner space has a longitudinal axis parallel to, though offset from, the longitudinal axis of the housing. An angularly displaceable shaft is arranged in the inner space and carries the chucking equipment. A rotatable outer casing peripherally encloses the cylindrical elongate housing. The rotatable outer casing carries the lathe tool. Rotation of the rotatable outer casing causes the lathe tool to effect a radial displacement relative to the chucking equipment.

Abstract: An internal abrasive machine abrades material from an inner surface of a workpiece. The machine includes a casing rotated about a first axis, with a workpiece rotated therewith about the first axis. A housing is disposed coaxially inside of the casing, and a shaft is mounted eccentrically in the housing. The casing and housing are angularly movable relative to one another. A drivable spindle is mounted in the shaft, the spindle carrying an abrasive tool. The spindle is offset eccentrically with respect to the first axis and carries an abrasive tool disposed inside the workpiece. A motor is provided to produce relative angular movement between the housing and the shaft to displace the spindle laterally with respect to the first axis and into contact with the inner surface of the workpiece.

Abstract: A lathe includes a frame for supporting rotatable chucking equipment adapted to hold a work piece. The frame further supports at least one lathe tool for machining the work piece. The chucking equipment and the lathe tool are displaceable relative to each other in at least a radial direction. The lathe includes a housing attached to the frame, with the housing extending about a longitudinal axis and having a cylindrical inner space extending from one end of the housing. The inner space has a longitudinal axis parallel to, though offset from, the longitudinal axis of the housing. An angularly displaceable shaft is arranged in the inner space and carries the chucking equipment. A rotatable outer casing peripherally encloses the cylindrical elongate housing. The rotatable outer casing carries the lathe tool. Rotation of the rotatable outer casing causes the lathe tool to effect a radial displacement relative to the chucking equipment.

Abstract: An abrasive machine includes a rotatably driven tool, chucking equipment for holding the work pieces and a feeding device for effecting relative displacement between the work piece and the rotatably driven tool. The machine further includes a tubular cylindrical housing, a shaft provided with a recess, a rotatable outer casing peripherally enclosing the housing, and a lid member connected to the casing and extending radially over a first end of the tubular cylindrical housing such that an inner surface of the lid members faces the first end of the housing. The rotatably driven tool includes abrasive material carried on the inner surface of the lid member. The shaft is arranged such that when the shaft executes an angular displacement, the work piece held by the chucking equipment is caused to approach and contact the abrasive material.

Abstract: An abrasive machine for grinding material from an outer surface of a workpiece. The machine includes a rotationally driven casing having an opening at one axial end thereof. The opening is defined by an annular edge which constitutes a grinding wheel. A shaft is disposed within the casing and forms a space whose center axis is offset from the center axis of the casing. Disposed within the space and supported by the shaft is a clamping mechanism which holds the workpiece within the plane of the annular edge. By turning the shaft relative to the casing, the clamping mechanism and the workpiece will be moved toward or away from the path of travel of the annular edge, due to the eccentric relationship between the casing and the space.

Abstract: A double face abrading machine for simultaneous removal of material from two plane-parallel surfaces of a work piece, and incorporating a first and a second tool (1, 2) forming between them a machining gap (3), the first tool (1) being attached to a first shaft (5) and the second tool (2) being attached to a second shaft (7), means (11) for rotating at least one of said first and second shafts (5, 7) and displacement means (13, 14) for individual axial displacement of said first and second shafts (5, 7) for varying the axial size and/or position of the machining gap (3), and means provided for feeding work pieces into the machining gap, wherein the first shaft (5) is designed as a tubular shaft, supporting at one end the said first tool (1), which is designed with an opening (1a) having a diameter at least corresponding to the diameter of the tubular shaft (5), whereas the second shaft (7) is arranged to extend through the tubular first shaft (5) and through the opening (1a) in the first tool, and to project