Abstract: A holding head is provided for a vacuum holding device for handling a plate-shaped workpiece about an axis. An arrangement of operating elements on a base body of the holding head includes at least three operating elements connected as actuating elements in a double actuation circuit for releasing the plate-shaped workpiece. Two of the actuating elements are arranged on sides of the arrangement opposite to one another with respect to the position of the axis and the third actuating element is designed ring-shaped and surrounds the axis circumferentially.

Abstract: A holding head is provided for a vacuum holding device for handling a plate-shaped workpiece about an axis. An arrangement of operating elements on a base body of the holding head includes at least three operating elements connected as actuating elements in a double actuation circuit for releasing the plate-shaped workpiece. Two of the actuating elements are arranged on sides of the arrangement opposite to one another with respect to the position of the axis and the third actuating element is designed ring-shaped and surrounds the axis circumferentially.

Abstract: A pipe wrench or water pump wrench includes a clamp having a first shaft-like grip part and a handle having a second shaft-like grip part. A first jaw having a first gripping surface is disposed at one end of the clamp and a second jaw having a second gripping surface is disposed at one end of the handle. The second gripping surface is formed so as to be complementary to the first gripping surface. The jaws extend in a jaw gripping direction. The gripping surfaces form a first gripping recess. An adjusting mechanism having a toothed slot is disposed in the clamp. The toothed slot is curved in the jaw gripping direction. A pivot pin connects the clamp and the handle in a pivotable manner with respect to one another. The pivot pin is displaceable via the adjusting mechanism.

Abstract: A pipe wrench or water pump wrench includes a clamp having a first shaft-like grip part and a handle having a second shaft-like grip part. A first jaw having a first gripping surface is disposed at one end of the clamp and a second jaw having a second gripping surface is disposed at one end of the handle. The second gripping surface is formed so as to be complementary to the first gripping surface. The jaws extend in a jaw gripping direction. The gripping surfaces form a first gripping recess. An adjusting mechanism having a toothed slot is disposed in the clamp. The toothed slot is curved in the jaw gripping direction. A pivot pin connects the clamp and the handle in a pivotable manner with respect to one another. The pivot pin is displaceable via the adjusting mechanism.