Abstract: The pane for solar protection, daylighting and energy conservation is a pane system consisting of two prismatic panes. The prismatic ribs of the panes are inclined by a certain angle to the horizontal within the window plane, exhibit identical cross-sections in the shape of a rectangular triangle with a certain basic prism angle &thgr;, are facing each other and are engaged such that just a small gap remains between both of the panes. The faces sA of the prismatic ribs are coated with a specularly reflecting layer and the faces sB of the prismatic ribs are coated with a diffusely reflecting layer. The prismatic pane system can be applied for common window inclination angles &ngr; and for window directions with essential solar irradiation at sites of temperate climate.

Abstract: Therefore, the object of the invention is to utilize the unused channel capacity of the television channel even more optimally for additional signals. Both on the transmitting, as well as the receiving side, the clock pulses for video and audio data to be additionally transmitted are generated from the FBAS useful signal by counting, weighting and decision-making, both signals being separately digitized, buffered, and compressed before being superimposed upon on the useful video signal. Subsequent to the same clock pulse generation, the steps follow in the reverse order on the receiver side. The implementation can be carried out on the transmitter side using additional equipment, on the receiver side by computer software or additional devices installed in the conventional TV set. The application can be carried out for any additional video and sound signals. A preferred special application is a community picture broadcast similar to a slide presentation.

Abstract: A pane of transparent material exhibiting a plane base pane and an integrated structure of parallel ribs with triangular cross-section and corresponding grooves is described which rejects direct solar radiation during a summer season and transmits direct solar radiation during a winter season. The pane can be adapted to a wide range of facade directions and geographic latitudes and the duration of the light rejection season or the light transmission season, respectively, can be adapted to individual preferences by aligning the longitudinal axes of the ribs with reference to the horizontal line and by forming the triangular cross-section in an adequate way. A part of the solar radiation transmitted by the pane has horizontal and upward directions and, therefore, the pane provides pleasant daylight in rooms. The pane is able to replace venetian blinds or other movable protection systems and may avoid overheating of facade walls equipped with transparent insulation.

Abstract: The invention relates to acoustically radiating randomly large rooms and surfaces according to propagation time principles, whereby action or representation and reception or listening areas border directly on one another or are identical. Its object is to avoid error locations and skipping effects caused by movements, which are especially interfering for important solo sound sources. The resulting object of realizing a propagation time staggering without limiting source areas, and responding to the acoustic capacity of the sources, is solved by means of a control device connected to the delay or amplification devices, and which differentiatedly controls them analogous to the sound paths between the source and the acoustic radiator locations.

Abstract: A burner having an air intake at atmospheric pressure, a gas (fuel) supply line and a combustion chamber in which gas from the latter line burns in the presence of atmospheric air drawn in from the intake, is provided with a swingable or rotatable flap-type valve member which controls the volume rate of flow of the air to the combustion site. According to the invention, the position of the valve member is controlled by a parameter generated by the air stream and in response to the pressure in the gas supply line to maintain the air factor (ratio of air to gas) substantially constant. To this end a membrane type pressure detector responds to the pressure in the gas supply line and is connected by a mechanical force transmission mechanism to the flap or other valve element.

Abstract: A burner having an air intake at atmospheric pressure, a gas (fuel) supply line and a combustion chamber in which gas from the latter line burns in the presence of atmospheric air drawn in from the intake, is provided with a swingable or rotatable flap-type valve member which controls the volume rate of flow of the air to the combustion site. According to the invention, the position of the valve member is controlled by a parameter generated by the air stream and in response to the pressure in the gas supply line to maintain the air factor (ratio of air to gas) substantially constant. To this end a membrane type pressure detector responds to the pressure in the gas supply line and is connected by a mechanical force transmission mechanism to the flap or other valve element.

Abstract: An apparatus for straining liquid fibrous suspensions to remove contaminants and foreign objects has a stationary screen basket located in a housing. Purging blades rotate in the interior of the screen basket in close proximity to the interior walls of the screen and create pressure pulses, causing trapped contaminants and foreign objects to migrate toward an outlet, whereas the purified suspension, including the useful fibers, passes through the screens.The average path traversed in the apparatus by contaminants and foreign objects is shortened due to the disposition of an intermediate chamber, at mid-height of the screen basket, through which contaminants may also be eliminated from the apparatus. The purging blades are appropriately extended to sweep the walls of this intermediate chamber. The shortened average path reduces the probability that contaminants will pass through the screen on their way to the outlet.