Abstract: The present application discloses a master processing apparatus. One aspect of the application relates to the use of a take-up roll in the apparatus. Another aspect of the application relates to the use of a take-up roll in a cartridge mountable to the apparatus. Yet another aspect of the application relates to a cover for the apparatus. Still another aspect of the invention relates to a cartridge including a pressure applying assembly mounted therein.

Abstract: The present invention relates to a leader device for initially feeding web materials between a set of nip rollers. The device comprises a pair of leg portions each having a nip roller engageable exterior surface and a web material engaging interior surface. The leg portions have connected end portions defining a leading end portion and free end portions movable apart from one another.

Abstract: Means for checking the voltage level of a battery used in an apparatus including an operational amplifier powered from the battery and an indicating means operatively connected to the output of the operational amplifier. The indicating means provides a replace battery indication which is presented when the battery is in a replacement condition and the amplifier is operated at saturation.

Abstract: A liquid level sensing electrode structure provided by flat cable which has a plurality of insulated conductors cut to various lengths with end portions exposed to provide sensing electrodes is used in a liquid level sensing system. A common electrode is provided for the system. A separate voltage inverter is provided for each sensing electrode and connects with a voltage source to provide a microprocessor compatible signal when liquid is presented to the common electrode and the sensor for the inverter. A liquid utilization apparatus having a liquid sensing system provides a flow of liquid along the electrode structure to prevent sediment buildup.

Abstract: A sensing device is provided for the detection of electromagnetic radiation through the use of a large area pyroelectric/piezoelectric sensing medium. The detection operation of the sensing device is constructed to ignore spurious detection indications due to bending or compression of the sensing medium. In a preferred embodiment the sensing device is formed from a two housing construction that includes outer and inner housings. The outer housing of the device includes an infrared transmissive window at one end. To substantially physically isolate the two housings from one another, the inner housing of the device is supported inside the outer housing by means of support members protruding through the opposite end of the outer housing. The sensing medium is disposed in one end of the inner housing and is protected by the outer housing from bending or compressive stress.