Abstract: An adjustable hanging sunshade umbrella is provided which comprises a side standard, a transverse arm joined to the side standard in cantilevered fashion, a central rod, support and operation means for a protective covering connected to the central rod, and a position-adjusting device adapted to cause rotation of the central rod relative to the axis of the transverse arm and lock it to the desired inclination of the protective covering.

Abstract: A corner cutting machine for notching corners out of plate stock located on a work table by means of upper and lower knives arranged at an angle to form a V-shaped cutting edge. Work piece stop and positioning edges are mounted to adjustment heads which are mechanical for remotely controlled motor driven longitudinal movement in converging slots provided in the work table and rotary movement relative to the work table.

Abstract: The invention relates to corner shears for cutting out obtuse-angled to acute-angled corners from sheet metal by means of upper and lower knives (41, 40) which interact with one another in the manner of scissors and which, to form an angular cutting edge, each consists of two knives placed against one another in a V-shaped manner and supported on knife carriers (52, 53, 19,20) pivotable about a vertical axis A, the pivot axis (A) passing respectively through the cutting corner and means being provided for adjusting the angle .alpha. between the cutting edges, each upper-knife carrier (52, 53) being connected positively, without the shear stroke being impeded, to the corresponding lower-knife carrier (19, 20) via an engagement piece (72) fastened to the upper-knife or lower-knife carrier.