Abstract: A casement window with multi-angle window sash includes a window frame (2) and a window sash (5). The window sash (5) is connected with the window frame (2) by a window hinge mechanical structure and a locking mechanism (7), wherein the mechanical structure of the window hinge includes a quadrilateral link mechanism (4), a movable sliding block (10), a gear (9), and a hinge seat (3); the locking mechanism (7) includes a screw rod (75) with an axial plane (78) and a thread (77). The screw rod (75) realizes the locking of the window sash (5) by meshing the thread (77) with the gear (9), and realizes the opening and closing of the window sash (5) by the axial plane (78). The casement window is simple in structure, low in cost, convenient to install and use, and provides high safety.

Abstract: A convenient-used securing clamp comprises a pair of clamp hands, two distance-fixing clamps, two groups of throat pipe moulds and a mould base, wherein the distance-fixing clamp is a split structure that consists of two pieces which can be closed together or released; the throat pipe moulds are set inside the distance-fixing clamps with the same split structure, so as to be closed and released along with the distance-fixing clamps; the mould base is also the split structure, with its upper part connected with the distance-fixing clamps and the lower part connected with the pair of clamp hands, so that as the pair of clamp hands releases and closes, the mould base releases and closes.

Abstract: A four-corner cut square Chinese character input method based on excellent code comprises the steps of: assigning predesigned code table to corresponding keys of a keyboard; and inputting Chinese Character according to four-corner coding of Chinese character by using the corresponding keys on the keyboard, an inputting rule of Chinese character coding including twenty cutting rules which comprise the characteristic of the excellent code combining with cutting skill. The excellent code table and cutting skill are capable of putting an end to the amphibolous codes, with this input method, most of Chinese characters don't have overlapped codes.