A heated inclined separation pressure vessel for receiving an oil emulsion. The device is designed to allow for self-alignment of the tweezer elements, ensuring that all tweezer elements close simultaneously during a revolution of the hair-plucking assembly, with no excessive applied force being required, thus enabling uniform distribution of gripping force among all hair-traps, despite inaccuracies in manufacture. The crystalline substrate is patterned to form an active area such that a conductive channel is formed in the crystalline substrate between the source and drain regions. The plurality of flexible printed circuit boards is connected to one side of the display panel. When the pinball game is adapted to be played by one player, the playing surface is in the inclined position.