摘要:
An agricultural implement has gangs of soil aerator tools. Each gang includes a set of integral multi-tine units mounted on a frame for rotation in unison. Each tine unit has a hub with tines. The hub has a first surface defining a first set of indexing receivers and a second surface defining a second set of indexing receivers. At least one indexing spacer separates each tine unit from the next tine unit. Keys of the indexing spacers assemble with selected ones of the first set of indexing receivers or the second set of indexing receivers to establish and maintain a predetermined pattern of rotational index positions among tine units in a group and groups in a gang.A method of rotationally indexing agricultural tools in an assembly. One method includes providing a shaft, tine units, and indexing spacers. Assembly involves sliding a tine unit and an indexing spacer onto the shaft, and assembling in series the tine unit and the indexing spacer on the shaft, such that the indexing spacer orients the tine unit to form an assembly.
摘要:
A surface guidance system for guiding aircraft equipped with Instrument Landing Systems along taxiways which utilizes two inductive loops (14,16) installed around the right half and the left half of the taxiways. Audio amplifiers (18,20) drive one loop (14) with an 90 Hz signal and the other loop (16) at 150 Hz. A sensor (22) mounted on the aircraft detects the composite magnetic field induced by the surface loops (14,16). The detected signal is conditioned and supplied to the ILS system to provide left/right lateral guidance to the pilot. Longitudinal aircraft position is determined by using dipole marker antennas (52) embedded near the taxiway center line. Each marker antenna (52) has a unique code identifier. Existing ILS equipped aircraft can sense the marker signal and transmit the aircraft position to the ATC facility. Additional pairs of loops (14,16) and marker antennas (52) are used for different taxiway or runway sections.
摘要:
An agricultural implement has gangs of soil aerator tools. Each gang includes a set of integral multi-tine units mounted on a frame for rotation in unison. Each tine unit has a hub with tines. The hub has a first surface defining a first set of indexing receivers and a second surface defining a second set of indexing receivers. At least one indexing spacer separates each tine unit from the next tine unit. Keys of the indexing spacers assemble with selected ones of the first set of indexing receivers or the second set of indexing receivers to establish and maintain a predetermined pattern of rotational index positions among tine units in a group and groups in a gang.A method of rotationally indexing agricultural tools in an assembly. One method includes providing a shaft, tine units, and indexing spacers. Assembly involves sliding a tine unit and an indexing spacer onto the shaft, and assembling in series the tine unit and the indexing spacer on the shaft, such that the indexing spacer orients the tine unit to form an assembly.
摘要:
An agricultural implement has gangs of soil aerator tools. Each gang includes a set of integral multi-tine units mounted on a frame for rotation in unison. Each tine unit has a hub with tines. The hub has a first surface defining a first set of indexing receivers and a second surface defining a second set of indexing receivers. At least one indexing spacer separates each tine unit from the next tine unit. Keys of the indexing spacers assemble with selected ones of the first set of indexing receivers or the second set of indexing receivers to establish and maintain a predetermined pattern of rotational index positions among tine units in a group and groups in a gang. A method of rotationally indexing agricultural tools in an assembly. One method includes providing a shaft, tine units, and indexing spacers. Assembly involves sliding a tine unit and an indexing spacer onto the shaft, and assembling in series the tine unit and the indexing spacer on the shaft, such that the indexing spacer orients the tine unit to form an assembly.
摘要:
An agricultural implement has gangs of soil aerator tools. Each gang includes a set of integral multi-tine units mounted on a frame for rotation in unison. Each tine unit has a hub with tines. The hub has a first surface defining a first set of indexing receivers and a second surface defining a second set of indexing receivers. At least one indexing spacer separates each tine unit from the next tine unit. Keys of the indexing spacers assemble with selected ones of the first set of indexing receivers or the second set of indexing receivers to establish and maintain a predetermined pattern of rotational index positions among tine units in a group and groups in a gang. A method of rotationally indexing agricultural tools in an assembly. One method includes providing a shaft, tine units, and indexing spacers. Assembly involves sliding a tine unit and an indexing spacer onto the shaft, and assembling in series the tine unit and the indexing spacer on the shaft, such that the indexing spacer orients the tine unit to form an assembly.
摘要:
Method and apparatus for providing a filtered signal which indicates of a flow of fluid to a fluid pressure communication conduit, the flow being dependent upon the pressure of fluid in a chamber. The pressure in the chamber is controlled by one or more pressure adjusting valves. The invention provides for receiving into a data processing module one or more valve signals indicating open states of the pressure adjusting valve or valves, and also a flowrate signal from a flowrate sensor, which represents the real instantaneous flowrate, and it is this signal which needs to be filtered to remove transients. The invention provides for choosing between a first processing mode and a second processing mode for the flowrate signal. The first processing mode is used when the second processing mode is not in effect, and when neither of the valve signals indicates an open valve. The second processing mode is activated a valve signal indicates an open valve. The second processing mode, when activated, proceeds according to a predetermined procedure and then returns to the first processing mode after no valve signal indicates an open valve. The signal is processed by either the first processing mode or the second processing mode, depending on whether valve signals have been received, and provides the filtered signal as an output to equipment external to the data processing module.