A single hung window has a window frame, an upper fixed lite of glass secured to the window frame and a movable lower sash secured to the window frame with the lower sash being generally coplanar with the upper fixed lite of glass. Lower sash retention elements secured to opposed jamb portions are operatively associated with the lower sash to facilitate securement of the lower sash in a plurality of positions. A balance system is secured within each jamb and is operatively associated with said lower sash. The lower sash may be structured to receive a screen. The sash may be employed alone without the upper fixed lite of glass.

The invention relates to a motor-driven charging device (2) for use in an electric vehicle, comprising a charging element (4), having a charging connection (6), a cover flap (10) for covering the charging connection (6) in a closed state of the motor-driven charging device (2), a motor (12) operatively connected to the cover flap (10) and the charging element (4) for driving an opening movement and a closing movement of the cover flap (10) and the charging element (4), a power transmission element (14) for transmitting a motor power of the motor (12) for carrying out the opening movement and the closing movement of the cover flap (10) and the charging element (4), a guide elements (16) for guiding the cover flap (10) and the charging element (4) along a movement path during the opening movement and the closing movement of the cover flap (10) and the charging element (4), the cover flap (10) and the charging element (4) being arranged relative to one another and kinematically coupled to one another in such a way that the cover flap (10) and the charging element (4) can be moved simultaneously in opposite directions during the opening movement and the closing movement in a motor-driven manner, such that the charging element (4) can be moved in an open state of the motor-driven charging device (2) into the position which the cover flap (10) has in the closed state of the motor-driven charging device (2).

Disclosed is an open top hopper window with a hopper window and a frame. The frame includes top edge and bottom edges, and left and right sides. The inn part of the right and left sides of the frame has a guide groove located at the bottom of the side, with a hole in the frame located above such guide groove. The joining between the hopper window and the frame uses two bolts at the outer bottom sides of the hopper window sliding into the guide grooves and two arms linking the holes at the frame with two holes at the hopper window wherein the two holes are located at the 35%-40% range of the total length of the hopper window on the outer sides of the hopper window always achieving an equilibrium position which allows positioning the hopper window at different opening angles and positions without effort.