Abstract: The invention relates generally to an orthopedic insole arrangement comprising a bottom insole (110), a top insole (112) and a set of overload tactile feedback elements, e.g. pins (115, 116, 117, 118, 119) forming an orthopedic insole kit. The assembled insole arrangement gives a tactile overload feedback to patients during rehabilitation, such as during walking, allowing an optimised healing process. The insole (913) may comprise a bottom insole (110) having at least one hole (120, 130, 140, 150, 160, 165, 170, 175, 180, 185), and a top insole (112) with matching hole/s (121, 131, 141, 151, 161, 166, 171, 176, 181, 186), wherein at least one pin (115, 116, 117, 118, 119) is installed to slide vertically inside the hole (121, 131, 141, 151, 161, 166, 171, 176, 181, 186), thereby protruding from the insole (913) at some compression of the insole (913).

Abstract: A nozzle of an air supply device is accommodated in a hole (17) in a wall (15) of the device, such as to enable the nozzle to be rotated about a first axis extending through the center of the hole, and pivoted about a second axis that extends perpendicularly to the first axis through two engagement points (6a) on the nozzle. The nozzle includes two or more guide vanes or baffles in the form of tongues (2,3) that have rear deflecting parts (2a,3a) of mutually different curvature, and a front, generally flat outflow part (2b,3b). The nozzle also includes a central tongue-holding part (5) which has resilient hook-shaped engagement elements (6a) at opposite ends. The nozzle may also include a third guide vane or baffle (4) that lacks a curved deflecting part. The air flow exiting from the nozzle can be directed in different planes. The invention also relates to an air supply device provided with one or more such nozzles (1).

Abstract: A nozzle of an air supply device is accommodated in a hole (17) in a wall (15) of the device, such as to enable the nozzle to be rotated about a first axis extending through the center of the hole, and pivoted about a second axis that extends perpendicularly to the first axis through two engagement points (6a) on the nozzle. The nozzle includes two or more guide vanes or baffles in the form of tongues (2, 3) that have rear deflecting parts (2a, 3a) of mutually different curvature, and a front, generally flat outflow part (2b, 3b). The nozzle also includes a central tongue-holding part (5) which has resilient hook-shaped engagement elements (6a) at opposite ends. The nozzle may also include a third guide vane or baffle (4) that lacks a curved deflecting part. The air flow exiting from the nozzle can be directed in different planes. The invention also relates to an air supply device provided with one or more such nozzles (1).

Abstract: A supply air terminal device (1) of box-like or screen-like construction has a front wall (5) in which there are disposed a plurality of groups (10) of slots (7) with the groups and the slots in each group mutually spaced apart. Each group of slots is allocated a nozzle module (11) mounted on the inside of the wall (5). Each nozzle module (11) includes a number of nozzles (12) corresponding to the number of slots, wherein each nozzle functions to repeatedly deflect the part-flows (B) through an angle of 90.degree. from a delivered main flow. To this end, each nozzle (12) of a nozzle module (11) carries at its ends curved deflecting parts (12b) which project progressively further out in the direction of the main flow. The deflected part-flows mutually collide and exit with a low impulse through the slots (7) allocated to respective nozzles (12). The invention also relates to a nozzle module for a supply air terminal device (1) of the aforesaid kind.

Abstract: A rapping mechanism is provided for rapping a row of electrodes (1) in an electrostatic precipitator. The electrodes (1) consists of vertical strip plates suspended from their upper ends and the mechanism comprises a horizontal rapping bar (3) connected with the lower end of each electrode (1) in the row and a hammer (4) for striking the bar (3) in its axial direction. The connection between the lower end of each electrode (1) and the rapping bar (3) is an elastic connection (8) configured with a predetermined elasticity.

Abstract: A method is disclosed for controlling the operating parameters of an electrostatic precipitator of the type having electrodes energized by pulses superimposed upon a DC-voltage. According to the method, the pulse height (i.e., amplitude) is continuously increased at a predetermined rate and spark-overs are thereby detected as reductions in the precipitator-voltage below a selectable set value and are sorted in different types according to the time of their occurrence and duration. Thereafter, the operating parameters of the precipitator are altered in dependence upon the characteristics of the actual spark-over.

Abstract: A method is disclosed for controlling the DC voltage of an electrostatic precipitator having electrodes energized by a preset DC voltage in which the preset DC voltage has pulses superimposed thereon. According to the method, the pulses are periodically turned off. Thereafter, the corona discharge current caused by the DC voltage is measured and compared against a preset value. Thereafter, the DC voltage is adjusted in dependence upon the measured corona discharge current by it being increased or decreased depending upon whether the discharge current is lower or higher than the preset value.