Abstract: A window assembly for an aircraft includes a window frame being arranged bordering a window opening in a hull of the aircraft, a window seal being attached to the window frame, a window being supported by the window frame and sealed to the window frame by the window seal, a window retainer covering the window seal and the window frame from the inside of the aircraft, and a transparent vapor barrier being supported by the window retainer and covering the window from the inside of the aircraft such that an air gap is formed between the window and the transparent vapor barrier.

Abstract: A drum cutting machine has a rotary drum and has a plurality of blades arranged along the contour of the rotary drum. The lateral surface of the rotary drum is provided with a multiplicity of holes. A supporting part matches the contour of the rotary drum and has for each of the blades a bearing point that defines the position of the cutting edge. A blade box for such a machine makes it easier to move the blades into the correct position, thereby reducing the complexity in terms of maintenance.

Abstract: A window assembly for an aircraft includes a window frame being arranged bordering a window opening in a hull of the aircraft, a window seal being attached to the window frame, a window being supported by the window frame and sealed to the window frame by the window seal, a window retainer covering the window seal and the window frame from the inside of the aircraft, and a transparent vapor barrier being supported by the window retainer and covering the window from the inside of the aircraft such that an air gap is formed between the window and the transparent vapor barrier.

Abstract: A drum cutting machine has a rotary drum and has a plurality of blades arranged along the contour of the rotary drum. The lateral surface of the rotary drum is provided with a multiplicity of holes. A supporting part matches the contour of the rotary drum and has for each of the blades a bearing point that defines the position of the cutting edge. A blade box for such a machine makes it easier to move the blades into the correct position, thereby reducing the complexity in terms of maintenance.

Abstract: A sharpening device for manually sharpening the cutting teeth of saw chains for chain saws has a frame, which has two head parts (spaced apart from one another and two pairs of guide rods which are, in each case, arranged parallel to one another and to a longitudinal axis and rigidly connect the head parts to one another. Parallel to the longitudinal axis, round files and two file faces are held without play, but exchangeably in the head parts. The pairs of guide rods and the respective associated round files and the respective file faces are arranged rotationally symmetrically with respect to the longitudinal axis.

Abstract: The invention relates to a system for detecting products at a self-service product detection station wherein an optical control detection device is provided for detected a number of products smaller than the total number of products presented for purchase, wherein products detected by the control detection device are each assigned identification data, and a verification device is presented by means of which the identification data of the products detected by means of the control detection device are checked for consistency with the identification data of the products detected with a reading device so that, depending on the comparison result, an acknowledgement signal continuing the purchasing procedure or a correction signal interrupting the purchasing procedure is generated.

Abstract: A sharpening device for manually sharpening the cutting teeth of saw chains for chain saws has a frame, which has two head parts (spaced apart from one another and two pairs of guide rods which are, in each case, arranged parallel to one another and to a longitudinal axis and rigidly connect the head parts to one another. Parallel to the longitudinal axis, round files and two file faces are held without play, but exchangeably in the head parts. The pairs of guide rods and the respective associated round files and the respective file faces are arranged rotationally symmetrically with respect to the longitudinal axis.