Abstract: A detection system includes one or more base stations and one or more sensors. The base station defines a detection area and is configured to transmit a detection signal at a first frequency. The base station is further configured to facilitate selective variation of the detection area. The sensor is configured to detect the detection signal and transmit a communication signal at a second frequency in response to the detection signal. Movement of the sensor between the detection area and an area outside of the detection area affects detection of the detection signal. The first frequency is less than the second frequency.

Abstract: A detection system includes a base station and a sensor. The base station defines a detection area and is configured to transmit a detection signal at a first frequency. The base station is further configured to facilitate selective variation of the detection area. The sensor is configured to detect the detection signal and transmit a communication signal at a second frequency in response to the detection signal. Movement of the sensor between the detection area and an area outside of the detection area affects detection of the detection signal. The first frequency is less than the second frequency.

Abstract: A unique cabinet mounted I/O assembly adapted for integration into a control system which allows a block I/O assembly to be mounted in both sides of the cabinet allowing a blind fit of power and signal connections insuring that power will be provided to the block I/O assembly before any application of signals thereto and preventing any mismatching of I/O units to wrong processor blocks in the cabinet by a color matching scheme.

Abstract: A unique cabinet mounted I/O assembly adapted for integration into a control system which allows a block I/O assembly to be mounted in both sides of the cabinet allowing a blind fit of power and signal connections insuring that power will be provided to the block I/O assembly before any application of signals thereto. and preventing any mismatching of I/O units to wrong processor blocks in the cabinet by a color matching scheme.

Abstract: An electro-hydraulic positioning system which has automatic calibration capabilities is disclosed. The system includes a microprocessor which accesses calibration parameters stored in a non-volatile memory unit. The microprocessor adjusts the position demand according to the stored calibration parameters. The system may be placed in an atuomatic calibration mode. In which case, update calibration parameters are automatically determined and stored. The system also includes a microcontroller which monitors system operating variables and reports deviations of the variables from expected values for same.

Abstract: A cutterbar assembly for the header of an agricultural combine having a skid coextensive with the cutterbar but comprising individual skid segments. The knife guard likewise comprises individual segments positioned in aligned relationship with the skid segments, whereby the flexibility of the cutterbar is enhanced so that it is able to follow the contour of the ground without row sensitivity. The skid segments are corrugated to provide a more efficient strength to weight ratio.

Abstract: A header frame for a combine harvester having a linkage connection between the crop reel and the auger, whereby the auger may be automatically and mechanically raised from the header floor by raising the reel for purposes of unplugging wedged crop material. The linkage includes a lost-motion connection so that the reel can be moved vertically as required during harvesting without affecting the auger, and the auger is also capable of floating action during operation. A sprocket and chain drive for the auger includes a spring-biased idler sprocket for maintaining proper chain tension and uninterrupted operation of the auger at all times. An adjustable wedge is also provided for fixing and limiting the minimum spacing between the auger and the header floor.

Abstract: A header for a combine or the like having a cutterbar assembly which is vertically flexible relative to the main frame of the header. Leaf springs are fixedly connected to the header frame and extend forwardly to a sliding connection with the cutterbar assembly to exert a counterbalancing upward force thereon. Longitudinally reciprocable adjustment bars captive on threaded adjustment bolts are mounted on the main frame in association with each spring for varying the upward force being exerted thereby.

Abstract: A crop harvesting header for a self-propelled combine. The header includes a "floating" flexible cutterbar movable vertically relative to the header frame to cut a standing crop (soybeans, for example) close to the ground to minimize crop losses. The cutterbar is connected to a plurality of runner structures pivotally mounted on the header frame. A spring system is operative on the runner structures to resiliently counterbalance the cutterbar. Elongated skids are connected between adjacent pairs of runners to effectively extend along the length of the header. The skids are mounted to permit individual movement of the runners relative to each other as the cutterbar flexes over uneven ground across the harvesting path. The skids are selectively shiftable to vary the cutting height of the cutterbar.The combine includes a hydraulic system for raising and lowering the header. An automatic system raises and lowers the header in response to sensing the position of the cutterbar relative to the header.

Abstract: A harvesting combine header or platform having facilities whereby, by a quick attach and release operation, several crop pickup components may be operatively applied thereto. Anchor devices on the platform cooperate with special divider components on the reel assembly and with fast pins to releasably hold the reel assembly in place. Withdrawal of the fast pins frees the reel assembly from the platform. Similarly, bolting facilities are provided on the bottom and back wall of the platform and provide anchor points for a windrow pickup assembly. Unfastening of these bolting facilities frees the windrow pickup from the platform.

Abstract: A crop cutting apparatus having an elongated cutterbar, a plurality of guards, and reciprocating knife disposed in the usual arrangement wherein cylindrical cup-like retainer members are mounted by the guard mounting bolts to the top side of the cutterbar. A hold down clip slips over the retainer members and has a rearward portion contacting the cutterbar, a medial portion displaced from the cutterbar, and a forward portion including a horizontal surface acting against the knife and a vertical surface acting against the front side of the knife back. A single tie down bolt disposed between the retainer cups adjustably hold the clip in position to resist upward movements of the knife assembly.