Abstract: A washing and extracting machine includes a programmable controller for controlling a variable speed drive to control and vary the speed and direction of a rotating laundry cylinder containing a load of materials to be laundered. The cylinder is first loaded and then driven to rotate in a predetermined manner during a washing phase, followed by a rinsing phase and is then accelerated to a relatively high speed for extracting liquid from the laundered materials in an extracting phase. The laundry cylinder is accelerated and/or decelerated in accordance with a changeable, predefined acceleration/deceleration profile so that the laundry materials are movable radially and circumferentially in the cylinder in a controlled manner substantially eliminating unbalanced loading of the cylinder and contents during the washing, rinsing and extracting phases, thus eliminating the need for costly and complex shock mounting systems for supporting the rotating cylinder.

Abstract: A machine for the continuous centrifugation of fabrics, comprising: a hauling means for the fabric formed by two endless bands having respective facing runs and an orbitting central block in which there are situated guide means for the bands, such that the latter follow cylindrical orbital paths during the passage thereof through the central block and conical orbital paths from the central block to the infeed and delivery ends of the machine. The orbital movement of the central block causes effective centrifugation of the fabric hauled by the bands, without causing therein harmful pulls or stresses.

Abstract: The invention relates to centrifuging devices, and particularly to the acceleration thereof to a design speed. In order to prevent imbalance (U) of the device exceeding a permitted maximum value (U.sub.m) during acceleration, the imbalance (U) is monitored and acceleration (.alpha.) controlled as a function of temporal changes in the imbalance (U). Acceleration n/.sub.t may be controlled in relation to the difference (.DELTA.U) between the measured imbalance (U) and the maximum value (U.sub.m), in relation to the rate of change (.beta.) of the measured imbalance, or to maintain the imbalance (U) between upper (U.sub.1) and lower (U.sub.2) threshold values at or below the maximum value (U.sub.m). Acceleration to the design speed can thus be accomplished with minimum delay and variation with reference to operating criteria of the device.

Abstract: A laundry handling machine for performing both a washing operation and a drying operation includes a blower which directs air over the motor during both the washing and drying operations to cool the motor and additionally directs air over a heating element during the drying operation to provide heated air through the vat. A rotational speed reduction arrangement is provided for controlling the timing of both of the operations. A drying operation timing device is driven by the washing operation timing device. A rinsing device is coupled with a supply conduct for a rinsing liquid and also with a siphon drain tube which has a larger cross-section than the supply conduct.

Abstract: A washing and extracting machine includes a frame assembly on which a cylindrical housing is rotatably and pivotally mounted. The housing is connected to the frame assembly by releasable connectors each including a pin secured to the housing and a toggle latch mechanism mounted on the frame and actuated by a actuator. A hydraulic motor is secured to the housing to rotate it relative to the frame. An extensible cylinder is mounted on the frame and to a bracket secured to the cylindrical housing. Upon actuation, the extensible cylinder pivots the housing relative to the frame. The bracket includes a slot in which an end of the extensible cylinder is slidably positioned. A toggle latch is mounted on the bracket to lock the end of the extensible cylinder in the slot during pivoting of the housing.

Abstract: The invention relates to a washing machine which comprises a casing (1) having a washing-liquid container (2) and a cylindrical washing drum (3) rotatably arranged in the container. The washing drum is driven by a single, brushless a.c.motor, to which energy is supplied from an inverter (41), so that the washing machine may be driven at a desired, alternative number of revolutions/min, which are preprogrammed and within an extended range of revolutions/min.

Abstract: The invention concerns a procedure and a mechanism for washing textiles in a tub-type washing machine with a horizontally arranged tub, in which during the washing and rinsing cycles the tub is driven with a rotational velocity at which the centrifugal velocity at the tub case is between 0.4 and 0.95 g, so that the textiles are repeatedly lifted up, and then fall in a trajectory onto the lower portion of the tub, and that between the washing and rinsing cycles and after the last rinsing cycle the tub is driven at spin speed, and in which the washing or rinsing liquid is led into the suds container and is supplied to the textiles by immersing the tub in the liquid or by at least one spray nozzle spraying into the tub continuously or at intervals.

Abstract: A method for dyeing of textiles in a liquid bath and an apparatus for performing the process which effectively stirs the dye bath resulting in a more homogeneous color distribution in the bath. The method also results in a faster drying process of the goods. Thus, the dyeing processing time has been reduced while the dyeing of the goods has been made more uniform.

Abstract: The specification describes a procedure for the washing of clothes in a washing machine with a horizontal, perforated, driven tub arranged inside a housing, in which during the washing and rinsing cycles the clothes are repeatedly lifted up, and then fall in a trajectory onto the lower portion of the tub, and are then distributed and pressed against the tub wall, largely without unbalance, as the tub velocity is gradually increased, and are then centrifuged as the velocity is increased further.

Abstract: A washer or hydro-extractor comprising a cylindrical basket adapted to be rotated about its longitudinal axis for liquid extracting operations on wet material placed therein. A plurality of rigid flaps within the basket are selectably pivotable about respective axes extending longitudinally of the basket. The flaps normally lie substantially flat against the inner cylindrical surface of the basket. A respective cam follower is rigidly coupled to each flap via a respective crank arm. In order to selectably pivot the flaps for stripping caked material from the inner surface of the basket, a stripper cam is selectably displaceable into a position in which it engages the cam followers of those flaps which, at any instant during stripping, lie in what is, at that time, the upper part of the basket, whereby the latter flaps are pivoted from their normal positions for effecting stripping.

Abstract: A laundry washing machine which comprises a driven laundry holder rotatably mounted within a separately rotatable driven washing liquid container, the respective axes of rotation of the holder and the container intersecting each other.

Abstract: A tub for a washing and spin-drying machine having a horizontal spin axis. The flanks of the tub are attached to a cylindrical part by a conical portion; the cross-section of the tub in a plane through the spin axis is rectangular with flattended corners.