(US4228225-B2)      A battery separator embossed with a configuration that is neither vertical corrugation or vertical rib and yet in which all of the surface areas of the two separator faces open or slant upwardly except the portions actually directly engaged against a battery plate. Thus all intended recesses in the faces of the battery separator are open at their upper extremity so that no gas can be trapped by the configuration of the battery separator embossment.    Additionally the division portions between the embossed recesses on the positive plate engaging face are in continuous engagement with the positive battery plate from the bottom of the plate to the top of the plate which provides stability to the raised areas of the battery separator that engage the negative battery plate.
(DE3011436-C2)      A device for the fluorination of coal comprises (A) a horizontal or slightly inclined, vibrating trough provided with a lid and numerous distanced weirs at the base to transport the coal with (B) the direction of the flow of F2 being directed in such a manner by downward extending, distanced baffles on the inner surface of the lid to ensure that the F2 comes in sufficient contact with the coal. The process is carried out under known conditions.    The amplitude of the vibrations of the trough is pref. 0.1-1mm and the frequency is 1,800-3,600 oscillations per min. Powdered coal of particle size up to 50 microns is used. The weirs are at a distance of 5-30cm from each other.    USE/ADVANTAGE -   Used as active material for prim. cells having a high energy density, as solid lubricant and as fluorinating agent. Coal can be fluorinated economically on a large scale.
(DE2920773-C)      Adjustment of the opto-electronic sensor to different spectral sensitivities and requiring little space together with the integrated analysing circuit is facilitated by an additional photodiode. Both diodes are exposed to the tested radiation and their pn junction is at different distances from the irradiated surface. The weights of signals from the diodes to the evaluation circuit are separately adjustable.    In the case of an analog adder the currents of the two diodes are subtracted and the sign is taken care of by the inverter circuit. The electrical characteristics can also be used in active RC filter including an operational amplifier.
(EP15487-B)      The heat-collecting tube (11) is located along the focal line of a cylindrical parabolic reflector (6). A pipe carrying fluid passes axially through the tube. The tube is heated by solar radiation reflected from the parabolic reflector and transfers this heat to the fluid flowing through the pipe. The reflector assembly can rotate about a vertical axis (19) and about a horizontal axis (21) so that it can track the sun in azimuth and elevation.    The pipe is connected at its ends via a valve and inlet and outlet pipes to a vertical rotary joint inside the vertical column (19, 20) supporting the reflector assembly. The vertical rotary joint consists of two concentric pipes, one acting as inlet and the other as oulet and both broken by rotational couplings allowing the top halves to rotate with respect to the bottom halves. The inlet and outlet pipes (17, 18) are connected via small horizontal rotary joints (15, 16) to the valve. The valve's inlet and outlet are connected via piping (12) to the end of the pipe inside the trube.
(EP10210-B)      The power generation-refrigeration system uses low temperature energy to produce selectively refrigeration or power. It includes a primary turbine (20), a power generator (70) and a reversible turbomachine (26) which can be operated as a compressor or a turbine.    To produce power the reversible turbomachine is operated as a turnbne and vapour is conducted along a first flow path between the primary turbine, reversible turbomachine and a condenser (34). To produce the refrigeration effect, vapour is conducted along a second flow path (43) between the primary turbine, reversible turbomachine, condenser (34) and an evaporator
(DE2846178-C)      The panel has a hollow chamber (10) with a transparent front plate (4) containing a light-absorbent, heat transfer gas or liquid, circulated through the chamber (10). An opaque plate (7) within the latter is moved from a position adjacent the reflective back of the chamber (10), to a position adjacent the front plate (4) in dependence on the temp. of the gas or liquid, or the heat requirement.    The opaque plate (7) may be moved via a bimetal spring (8) to which it is secured and it may have holes in its surface, for passage of the gas or liquid. Several such plates (7) may be used, each movable independently. Pref. the sides and back of the hollow chamber (10) are enclosed by a heat-insulating foam layer (6), with a peripheral seal (9) between the latter and the transparent cover plate (4). An outer transparent cover plate (3) is spaced in front of the latter, with a wavy spring