Abstract: In a printer mailboxing system with an array of multiple locked mailbox bins in which printed sheet print jobs from a printer are stacked into respective mailbox bins selectively designated for different users of the printer, which mailbox bins have access doors which are selectively electrically unlockable to provide print job removal access for the respective user; an integral print job removal system is provided for the mailbox bins, and the respective access door and its integral print job removal system are mounted to pivotally swing out together substantially horizontally away from the array of bins when that bin is unlocked, to pivot all the print jobs in that bin out away from the array of bins for improved access and removal, while still supporting the print jobs, but exposing the print jobs on two orthogonal sides, with the access door opening on two orthogonal sides.

Abstract: A sheet transport path system for transporting reproduction sheets along an elongated sheet transport path in a multibin sorter or mailbox system is provided by elongated moving belts having a high friction sheet engaging outside belt surface and an inside belt surface driven by belt drive rollers, and a belt backing system for supporting the inside of the belt flight. A low friction endless band centrally of the inside belt surface is engaged by the belt backing system. The belt backing system is an elongated fixed skid plate system narrower than the low friction endless band, and sliding thereagainst. High friction areas on the inside belt surface on opposite sides of this low friction endless band engage the belt drive roller for non-slip driving of the belt. The belt drive roller may, if desired, have a reduced diameter central groove so as to insure only engaging these outer edge areas of the inside surface of the belt if a thick inner belt surface or thick separate inner belt is utilized.

Abstract: A copying/printing machine is adapted for rolling up copies of large size documents such as engineering drawings and the like by incorporating a roll-up apparatus into the machine. An output copy is guided along a circular interior space formed by a combination of curved baffle members. The copy is propelled along a spiraling inward path by a combination of feed rollers and nudging rollers spaced along the width of the baffle members. A portion of the roll-up apparatus is pivotable downward to permit the rolled-up output document to be removed.

Abstract: Multiple copies of sheets produced by a duplicator, xerographic copier or the like are sorted onto trays. The trays are arranged in a stack and are moved upwardly and downwardly to enable different sheets to be sorted onto the trays on each upward pass and downward pass of the stack. A carriage retains the stack and moves upwardly and downwardly with the stack as individual trays are engaged and translated around a region where adjacent trays are spread apart to register the trays successively at a position where individual sheets are received thereon. Bidirectional movement of the entire stack of trays with a mechanism which raises or lowers a single tray provides a sorter of compact size which is simple, reliable and low in cost and which operates without generating excessive noise.

Abstract: A thermometer unit for monitoring the temperature of a fluid cooled electric transformer, the unit having a ceramic body insertable between the coils of the transformer winding immersed in cooling fluid in the transformer case. A nylon element responsive to heat changes is confined in the interior of the body and is adapted to expand according to developing heat changes. A flexible tubing having a loop portion fronting a tapered end of the nylon element is filled with a fluid which is caused to oscillate in the tubing accordingly as a rocker arm alternate actuates a pair of associated bellows. As the nylon element expands in response to a temperature rise, it squeezes the tubing causing a load to be placed upon the rocker arm which is indicative of the corresponding temperature change.

Abstract: An indicator to show that a pressure relief device has operated. The indicator of the invention comprises a flexed spring which is released to move to an upright position when the pressure relief valve is caused to operate.

Abstract: A switch device having a housing connectible to a side wall of a flow conduit, a cup element dangling at the end of a string in the conduit is adapted under a predetermined pressure of fluid flowing through the pipe to draw a magnet connected in the housing at the other end of the string against the bias of a spring away from a reed switch so as to move the contacts of the latter from one condition to another.

Abstract: A relay unit associated with a fluid cooled transformer apparatus. The relay utilizes an hydraulic bellows circuit system to sense internal pressure changes developing in a tank member of the transformer apparatus; and it responds to a sudden rise in the pressure to operate an alarm switch. The system includes a group of three bellows, one of which reacts to pressure changes in the tank; and the other two of which respond according to the reaction of the first in controlling operation of the switch. A pivoted bracket and supporting spring arrangement associated with the bellows serves to control operation of the switch and to restrain it from being operated by shocks and the like attendant upon seismic conditions.

Abstract: A thermometer formed wholly of dielectric components inserted between the coils of a transformer winding immersed in cooling fluid within the case of a high voltage transformer, the thermometer having a rod responsive to temperature changes within the case to vary light transmission across terminals of a pair of fiber optics to an external signal converter connected to transmit converted signals to a readout unit.The body of the thermometer may take various forms according to the applications intended. In applications not requiring dielectric components, the body and sensing rod may each be formed of a different metal, with that of the body having a lower coefficient of thermal expansion than that of the other.