The invention relates to a unit for covering and uncovering a surface using adjustable slats (3), comprising: for each slat (3), a set of two carriages (10.sub.1, 10.sub.2) guided in translation along guide tracks (8); a system (II) for moving the slats (3), comprising two movement motors (12) for each carriage pair (10.sub.1, 10.sub.2) equipping a slat, each motor being mounted in a different carriage; a system (I) for orientating the slats (3), comprising at least one orientation motor (14) for each carriage pair equipping a slat, said at least one motor being mounted in at least one of the carriages; and a control device for moving at least part of the slats in translation and orientating said slats.

A damper providing varying damping force is provided. The damper may include a housing and a rotary member rotatably received the housing. The rotary member may rotate within the housing between defined end points of travel to define an angular range of travel of the rotary member. An outermost surface of the rotary member may be spaced inwardly from an inner surface of the housing defined between the end points of travel to define a gap between the outermost surface of the rotary member and the inner surface of the housing throughout the angular range of travel. The gap may vary in dimension depending on a rotational position of the rotary member to provide varying damping rates within the angular range of travel of the rotary member.

The present disclosure relates to methods of enriching root powder products, for example beetroot powder. In particular, the methods relates to increasing the nitrate content and/or reducing the sugar content of the root powder product. The disclosure also relates to root powder products with increased with at least 3% nitrate.

A venetian blind includes a frame unit, a slat unit, a transmission unit, and an operating unit. The slat unit includes multiple drive axles and a plurality of slats each connected co-rotatably to the drive axles. The transmission unit includes two transmission rollers, a plurality of constant-force coil springs that are linked together and that are coupled to the drive axles, and a belt that cooperates with the constant-force coil springs to form a loop trained on the transmission rollers. The operating unit includes an inner control member connected to the belt, and an outer control member operable to drive the inner control member to move so as to drive rotation of the drive axles via the constant-force coil springs to rotate the slats.

A solar cell louver assembly includes: a plurality of solar cell module units having a solar cell panel part, with a pair of terminal portions provided on both end parts, a pair of first electrode terminals electrically connected to the respective terminal portions, and a pair of first caps mounted on the solar cell panel part to surround the respective first electrode terminals; second electrode terminals electrically connected to the first electrode terminals, and second caps accommodating the second electrode terminals and having mounted thereon the first caps; a frame unit having an inner frame such that the second caps are mounted rotatably in the length direction, and an outer frame surrounding the inner frame; and a connector unit between the inner and outer frames and having a pair of third electrode terminals electrically connecting the second electrode terminals of adjacent module units when mounted in the frame unit.

Implementations of a portable soundproofing enclosure may include: four side panels coupled together, a top panel coupled to each of the four side panels, the four side panels and the top panel, the top panel including a fan. The panels may form a cavity sized to fully enclose a portable generator. At least two of the four side panels may include an air dam. At least one of the side panels may have a plurality of louvers configured to allow air to be drawn through the panel. The bottom edges of the sides may be configured to rest on a mat.

Implementations of a portable soundproofing enclosure may include: four side panels coupled together, a top panel coupled to each of the four side panels, the four side panels and the top panel, the top panel including a fan. The panels may form a cavity sized to fully enclose a portable generator. At least two of the four side panels may include an air dam. At least one of the side panels may have a plurality of louvers configured to allow air to be drawn through the panel. The bottom edges of the sides may be configured to rest on a mat.

A slat for use in a window frame having opposing walls may include a wing portion structured to block light, the wing portion having a first end in a longitudinal direction and a second end opposite to the first end; and a first pressure contact part provided at the first end and a second pressure contact portion provided at the second end, the first pressure contact part and the second pressure contact part being structured to press the wing portion against the opposing walls of the window frame to thereby hold the wing portion in place.

A slat roof (1) comprising beams (2), a plurality of slats (3) arranged parallel to one another therebetween and slat shafts (4) by means of which the slats (3) are rotatably fixed to the respective beams (2), wherein at least one slat shaft (4) is hollow and wherein the slat roof (1) comprises at least one corresponding tensioning cable (5) which is inserted through said hollow slat shaft (4) and the ends of which are fixed to the respective beams (2). In addition, a method for adapting a slat roof.

A device for forming a jalousie includes at least first and second louvres pivoting about a common axis between a position in which the two louvres overlap and a position of angular separation of the louvres about the common axis. Preferably, the first louvre is at least partly translucent and the second louvre is opaque.