Abstract: An arrangement for illuminating the interior of a microwave oven cavity comprises a lamp (21) mounted in a lamp holder (19, 20) which is disposed outside the oven cavity behind a window in a cavity wall (10). The lamp holder (19, 20) is arranged axially within an electrically conductive sleeve (12) mounted on the outside of the cavity wall (10) and connected to cavity wall parts surrounding an aperture (11) in the cavity wall bounding the window so that the lamp (21) is axially arranged within the sleeve (12). The sleeve (12) constitutes a waveguide having the aperture (11) as input and having a cut-off wavelength smaller than the operating wavelength of the microwave oven, and the mounted lamp (21) has its filament (22) at a sufficient distance (H) from the aperture (11) for leaking microwave energy reaching the filament (22) to have been considerably attenuated. Microwave energy leakage is thereby substantially prevented both if the lamp (21) is mounted and if the lamp (21) is absent.

Abstract: A rotatable electrical coupling comprises a cylindrical housing enclosing two resilient contact members and having a circumferential groove formed in its inner surface. A cable holder has two slip rings respectively cooperating with the two contact members, the slip rings being formed as coaxial cylindrical conductors of different diameters. A connection cable is embedded in the cable holder and has two conducting cores respectively electrically connected to the two slip rings. A hollow substantially cylindrical insulating body electrically separates the two slip rings from each other and includes a disk-shaped member at its end facing the interior of the housing. This disk-shaped member has a diameter greater than the diameter of the larger slip ring and is rotatably journaled in the circumferential groove formed in the housing, an extended leakage path between the two slip rings being thereby provided by the disk-shaped member.

Abstract: The invention relates to a coffee maker comprising a water reservoir (1), a filter device (2) and a flow heater (3) for heating water from the water reservoir for delivery to the filter device. A problem associated with coffee makers is the deposit of scale in the flow heater. It is proposed to provide a coffee maker with means (13, 14) for adding a small amount of coffee extract to the water before it enters the flow heater (3). Coffee extract naturally contains phosphoric-acid-like compounds which inhibit the crystal growth of metal salts in the water. Preferably, coffee extract is fed continuously from the filter device (2) to the water reservoir (1).

Abstract: A shaving apparatus has a circular shear plate provided with hair-entrance apertures and a cutting unit associated with and rotatable relative to the shear plate about an axis of rotation. The cutting unit comprises a cutting member having a circular central body, cutter arms extending from the periphery of the central body toward the shear plate, and a cutter formed at the end of each cutter arm, a part of each cutter arm extending in a substantially axial direction. A hair-pulling member has a circular central portion, hair-pulling-blade arms extending from the periphery of the central portion toward the shear plate, and a hair-pulling blade formed at the end of each hair-pulling-blade arm, each hair-pulling blade being associated with and movable relative to a cutter, a part of each hair-pulling-blade arm extending in a substantially axial direction.

Abstract: A kitchen machine comprises a U-shaped housing having a base and oppositely disposed, upwardly extending sides. A cover is pivotally connected to one end edge of the base, the cover being rotatable to a position constituting an extension of such base to serve as a support for a bowl. A driving unit includes a housing and a motor unit, the driving-unit housing being rotatably connected to the upper portion of each side of the U-shaped housing; the motor unit having its own housing. A detachable handle is provided for the motor unit. First means is associated with the detachable handle for attaching the handle to the motor unit to enable the motor unit to be arranged in the driving-unit housing and to be removed therefrom. Second means is associated with the motor unit for locking the motor unit in the driving-unit housing.

Abstract: A cutter reciprocatingly drivable in opposite directions and adapted to co-operate with the shear foil of a dry-shaving apparatus comprises support means and a plurality of pairs of arcuate cutter lamellae mounted on such support means. The distance between the two cutter lamellae of each pair is smaller than the distance between either cutter lamella of such pair and the adjacent cutter lamella of the adjacent pair at the location of the top of the cutter lamellae. The two cutter lamellae of each pair respectively include angular portions oriented towards each other at the location of the top of the cutter lamellae, the angular portions of the two cutter lamellae of each pair being urged against each other under pre-load.

Abstract: An automatically operating electric shaver comprising a housing provided with a shaving head, said housing comprising a power source part and a motor. Furthermore there is provided a starting preliminary circuit which operates by detecting external contact resistance, a proximity detecting circuit which operates by detecting changes in capacity between electrodes for detecting proximity and a motor drive circuit which operates only when both of the afore-mentioned circuits operate and that the construction is such that the shaver starts automatically in a prescribed position and stops automatically in any positions remote from the said position.