Abstract: A dyeing machine comprises multiple dyeing beakers, a rotating support assembly mounting the beakers, a frame mounting the support assembly for moving the beakers about an axis of rotation, and a dye coupling on the frame for receipt of dye and other chemicals from a dye source. At least one beaker is provided with a dosing hose mounted on the rotating support assembly for supplying the beaker with a dye and other chemicals during movement of the rotating support assembly. In addition, a receiving end of the dosing hose is in fluid communication with the dye coupling.

Abstract: Each beaker is pivoted in such a manner that its longitudinal axis is tilted. Each beaker is equipped with a dosing hose, via which additives can be fed into the inner space of the beaker. Accordingly, the additives can be fed in a controlled manner and continuously or step-by-step into the beakers which are continuously moving, i.e. without any interruption of the movement of the beakers. This leads to a more uniform laboratory dyeing within the surface of the specimens.

Abstract: The apparatus includes a plurality of colorant reservoirs passing colorants and other ingredients through feed lines to a peristaltic pump which pumps the colorants into the input of three-way valves which are each movable between a dispensing mode and a recirculating made. In the recirculating mode the colorants pumped by the peristaltic pump will travel through the three-way valves and through return lines to the reservoirs from which the material originally emanated. If the three-way valve is in the dispensing mode the colorant will be discharged into a sample container for receiving the colorant mix. The peristaltic pump is driven by a drive motor such as a variable drive DC motor. The system is controlled by a system controller which receives input from a device such as a microprocessor which evaluates the required volume or weight of each particular colorant necessary to make a specific colorant mix.

Abstract: A reflected color simulator is disclosed which utilizes a plurality of color discs positioned adjacent to one another wherein each disc includes several individual sections which are interleaved with respect to the other color discs such that rotational movement of the discs with respect to one another will vary the percentage of color from each disc which contributes to the color displayed when the discs are spun together. The entire group of discs, which could be of any number but preferably 6 or 7, are rotated by a main drive device to mix the colors so exposed to form the desired color by reflected simulation. An observer when viewing the spinning group of color discs will see a reflected color which is determined by the exposed percentages of each color disc.