Abstract: A vulcanization mold (2) includes several segments (8a, 8b; 10a, 10b; 12a, 12b; 14a, 14b) which define two end profiles (8, 10) and two inner profile shells (12, 14) having concave surfaces. With synchronous movement sequences, which take place via linear controls from both ends, the segments (8a, 8b; 10a, 10b; 12a, 12b; 14a, 14b) are moved together under simultaneous shaping pressure. The outer profile shells (8, 10) pass through twice the distance as the inner profile shells (12, 14). The forming of the work blank (20) is completed via the shaping pressure when the mold (2) has reached the closed position. Preferably the upper profile half shells (8a, 10a, 12a, 14a) and the lower profile segments (8b, 10b, 12b, 14b) are operatively connected to each other via toothed racks (40a, 46a, 48a, 54a; 40b, 46b, 48b, 54b) and gear wheels (42a, 44a, 50a, 52a; 42b, 44b, 50b, 52b) including additional sets of teeth (42a?, 50a?; 42b?, 50b?).

Abstract: A vulcanization mold (2) includes several segments (8a, 8b; 10a, 10b; 12a, 12b; 14a, 14b) which define two end profiles (8, 10) and two inner profile shells (12, 14) having concave surfaces. With synchronous movement sequences, which take place via linear controls from both ends, the segments (8a, 8b; 10a, 10b; 12a, 12b; 14a, 14b) are moved together under simultaneous shaping pressure. The outer profile shells (8, 10) pass through twice the distance as the inner profile shells (12, 14). The forming of the work blank (20) is completed via the shaping pressure when the mold (2) has reached the closed position. Preferably the upper profile half shells (8a, 10a, 12a, 14a) and the lower profile segments (8b, 10b, 12b, 14b) are operatively connected to each other via toothed racks (40a, 46a, 48a, 54a; 40b, 46b, 48b, 54b) and gear wheels (42a, 44a, 50a, 52a; 42b, 44b, 50b, 52b) including additional sets of teeth (42a′, 50a′; 42b′, 50b′).

Abstract: A rolling-lobe air spring (2) has a flexible member (4), a cover plate (6) and roll-off piston (8). The bead (12) at the piston end is configured so that a contact of the bent-over edge portion (30) with the resilient member (4) takes place as late as possible to avoid an escape of the bead (12) downwardly into the free space. This is done to facilitate the attachment of a bead (12) of the flexible member at the piston end with a bent-over edge portion (30). The gap formed by bending over the edge portion when catching the bead (12) should already be closed so far that the bead (12) can no longer slip out. The bead (12) when grasped, should lie in a clamping manner against the inner surface of the contact wall.

Abstract: A device for constructing a thread reserve (6) wound parallel onto a bobbin (5 or 7) in a winder. The thread reserve is axially displaced in relation to the standard winding (4). The device has a reserve shackle (22) with two sections (24 & 25) that extend over the total width of the standard winding and slope together at an angle to the axis of the bobbin and toward a transition. The reserve shackle is moved back and forth by a drive mechanism in a motion that comprises one component perpendicular to the axis of the bobbin and another paralleling it. The reserve shackle has a distributing eye (23) at the transition between the sloping sections. A joint drive mechanism (27) travels back and forth at an angle to the axis of the bobbin to produce both components simultaneously.