Abstract: In an exemplary embodiment, a dual-band four-port orthomode transducer (OMT) is molded or cast. The OMT may be external to a transceiver housing or included as an integrated portion of the transceiver housing or a drop-in module. In an exemplary embodiment, a four-port OMT is formed from two pieces, the two pieces having a joint adjacent to or aligned to the axis of the common port. In an exemplary embodiment, the OMT is substantially planar and formed of a split-block embodiment. The two OMT pieces are joined and held together with a plurality of discrete fasteners. Furthermore, the OMT is configured to switch polarizations. The polarization switching is initiated using a remote signal and can facilitate load balancing.

Abstract: A photothermographic material having a Dmin and Dmax optical density. The material includes a support having hereon one or more thermally-developable imaging layers which are developable to produce an image when the photothermographic material is thermally processed; and an area disposed along a length of at least one edge of the photothermographic material, wherein the area has an optical density less than the Dmax and greater than the Dmin of the photothermographic material.

Abstract: A photothermographic material having a Dmin and Dmax optical density. The material includes a support having hereon one or more thermally-developable imaging layers which are developable to produce an image when the photothermographic material is thermally processed; and an area disposed along a length of at least one edge of the photothermographic material, wherein the area has an optical density less than the Dmax and greater than the Dmin of the photothermographic material.

Abstract: A thermographic or photothermographic material having a Dmin and Dmax optical density. The material includes a support having thereon one or more thermally-developable imaging layers which are developable to produce an image when the material is thermally processed; and an area disposed along a length of at least one edge of the material, wherein the area has an optical density less than the Dmax and greater than the Dmin of the thermographic or photothermographic material.

Abstract: A photothermographic emulsion is prepared by chemically sensitizing silver halide grains by oxidative decomposition of an organic sulfur-containing compound on or around the silver halide grains. This procedure uses a unique sequence of steps and provides increased photographic speed and manufacturing reproducibility. The resulting photothermographic emulsion can be used to prepare photothermographic materials.

Abstract: A traveling hopper feed delivery system is disclosed. The system includes hoppers which carry loads of feed past elongated feed-receiving troughs. These troughs are located adjacent poultry-retaining cages. Auger distributor conveyors carried by the hoppers draw the feed from each hopper bottom and urge it toward each feed trough. Delivery tubes depend from the auger conveyors for directing limited amounts of feed from the conveyors to each trough. Return means return undelivered feed from the distributor conveyors back to the respective hoppers. Sensors disposed to extend into the troughs sense the amount of feed already present in the troughs, and adjust butterfly valves (located between the feed delivery tubes and the auger conveyors) in response to the sensed height of feed present in the troughs before additional feed is delivered.

Abstract: Cage structure for poultry and the like comprises a number of cage rows mounted on A-frames in pyramided, stepped back, A-shaped, elevational array. Each cage row includes a bottom/back member and a top/front member joined together to form a row of cages of rectangular cross section. Each cage row is tipped forward to incline the cage bottom so as to urge eggs laid in the cages to roll forward into an egg collecting trough at the cage front. The bottom element of the bottom/back member forms at least a portion of the top of the cage row next below. A feeder trough forms a portion of each cage front.

Abstract: Apparatus is provided for maintaining a flock of poultry or the like. The system includes a number of cages which are transported in opposite directions along parallel paths. Upon reaching a path end, each cage is transferred in a straight line to an opposite transport device, and thus moves in a non-revolving, do-si-do pattern. Beside the path of cage movement, feeding, watering and egg collecting subsystems are provided. Poultry droppings are accumulated on collecting pans below each cage and are removed by scrapers which clean the pans as the pans pass a collecting point.