Abstract: A metal plate bending machine is disclosed having a flap supported by a trolley displaceable in a cradle defining a supporting and guiding track which is in the shape of a concave cylindrical envelope portion, whose concave envelope portion is open in the direction of clamp elements, and with the track supported by a chassis suspended from the frame by a vertical and horizontal position adjustment mechanism. The flap has a radial symmetry with a plane radially passing through the flap and the center of the envelope portion and with the folding head presenting a symmetric profile on either side of the plane.

Abstract: The application discloses an apparatus for removing bottle caps in which a lever is pivotally mounted at one end in a housing in a passageway into which the bottle, of which the cap is to be removed, is inserted. The lever has a cap removing hook intermediate its ends and a spring at the end away from the pivoted end pivots the lever to remove the cap. The lever is moved to spring loaded cap-removing position by a motorized cam having a lever pressing pin at its periphery.