Abstract: A switch assembly that can vary at least two controllable parameters and can vary the upper, lower and any intermediary limits of the switch assembly. The switch assembly has a pair of nested coaxial rotary knobs each attached by shafts to sensors that determine the radial position of a reference point on each knob. The knobs rotate with respect to each other and are constructed to allow rotation of the knobs with one hand. The sensors are attached to the controls of the parameters, such that rotation of the knobs varies the output of the parameters. The sensors are coupled to a magnetic clutch that engages and prevents rotation of one of the knobs, when the knob is rotated into a predetermined radial position. A computer can be connected to the magnetic clutch and sensors. The computer receives input signals from the sensors and produces an output signal to the clutch, to engage the clutch and prevent rotation of the knob in accordance with a computer program.

Abstract: A switch that can vary at least two controllable parameters and can vary the upper, lower and any intermediary limits of the switch. The switch has a pair of nested coaxial rotary knobs each attached by shafts to sensors that determine the radial position of a reference point on each knob. The knobs rotate with respect to each other and are constructed to allow rotation of the knobs with one hand. The sensors are attached to the controls of the parameters, such that rotation of the knobs varies the output of the parameters. The sensors are coupled to a magnetic clutch that engages and prevents rotation of one of the knobs, when the knob is rotated into a predetermined radial position. A computer can be connected to the magnetic clutch and sensors. The computer receives input signals from the sensors and produces an output signal to the clutch, to engage the clutch and prevent rotation of the knob in accordance with a computer program within the computer.

Abstract: A multistation cassette loading apparatus 10 loads a predetermined amount of blank or pre-recorded magnetic tape into cassettes 12. Cassettes to be loaded are oriented and positioned on a conveyor 16 by an automatic feed mechanism 14. A loading mechanism 18 transfers each cassette to the first station of a four station turntable 20. At the first station, the leader tape 320 of the cassette is extracted. At the second station, the leader is oriented in a splice block 24 and is held in place by vacuum. The leader tape is cut into two sections of equal length by a cutter 34. At the third station, one section of the leader tape is spliced to the end of a reel of supply tape 38 by a spicer 40. A measured amount of supply tape is wound into the cassette at a constant tension. A cushion of air blown around the reel of tape in the cassette during winding reduces frictional heating from tape drag. After the measured amount of tape is loaded into the cassette, the supply tape is cut by another cutter 46.

Abstract: A multistation cassette loading apparatus 10 loads a predetermined amount of blank or pre-recorded magnetic tape into cassettes 12. Cassettes to be loaded are oriented and positioned on a conveyor 16 by an automatic feed mechanism 14. A loading mechanism 18 transfers each cassette to the first station of a four station turntable 20. At the first station, the leader tape 320 of the cassette is extracted. At the second station, the leader is oriented in a splice block 24 and is held in place by vacuum. The leader tape is cut into two sections of equal length by a cutter 34. At the third station, one section of the leader tape is spliced to the end of a reel of supply tape 38 by a splicer 40. A measured amount of supply tape is wound into the cassette at a constant tension. A cushion of air blown around the reel of tape in the cassette during winding reduces frictional heating from tape drag. After the measured amount of tape is loaded into the cassette, the supply tape is cut by another cutter 46.