Abstract: A power-operated latch is integrated to a casement window for selectively locking and unlocking a vertically hinged window sash. The power-operated latch is adapted to be concealed in the window frame and is directly connectable to the existing window latch hardware. A reversible rotary motor drives a lead screw on which a slider is threadably engaged for pivoting a lever connected to a longitudinally movable latch bar.

Abstract: A power-operated latch is integrated to a casement window for selectively locking and unlocking a vertically hinged window sash. The power-operated latch is adapted to be concealed in the window frame and is directly connectable to the existing window latch hardware. A reversible rotary motor drives a vertically supported lead screw on which a slider is threadably engaged for selectively raising and lowering a longitudinally movable latch bar.

Abstract: A motorized operator for opening and closing a window sash relative to a window frame via an arm mechanism connected to the window frame and being adapted to be installed in a cavity defined in the window frame. The operator comprises a motor, a drive axle rotated by the motor, and first and second gears in meshed engagement. The first gear is mounted on the drive axle, while the second gear is mounted to the arm mechanism such that motorized rotation of the first gear rotatably drives the second gear thereby causing the arm mechanism to pivot for opening and closing the window sash. A manual operator is adapted to disengage the first and second gears from one another while becoming engaged to the second gear for manually rotating the second gear and so manually operate the arm mechanism. The manual operator comprises a handle and a manual actuator which includes a sprocket.

Abstract: A motorized operator for opening and closing a window sash relative to a window frame via an arm mechanism connected to the window frame and being adapted to be installed in a cavity defined in the window frame. The operator comprises a motor, a drive axle rotated by the motor, and first and second gears in meshed engagement. The first gear is mounted on the drive axle, while the second gear is mounted to the arm mechanism such that motorized rotation of the first gear rotatably drives the second gear thereby causing the arm mechanism to pivot for opening and closing the window sash. A manual operator is adapted to disengage the first and second gears from one another while becoming engaged to the second gear for manually rotating the second gear and so manually operate the arm mechanism. The manual operator comprises a handle and a manual actuator which includes a sprocket.

Abstract: The present invention concerns an apparatus for collective transportation of passengers, of metropolitan type with automatic drive by independent traction trucks using notably propulsion by linear motor, in this apparatus, the cabins (1) are driven by independent trucks (3) running on a track (7) parallel to the cabin track (5), these trucks being coupled in relatively loose or flexible connection to the cabins in order that their path will not be affected by that of the cabins and vice versa.