. The Bell System technical journal . der test at any one of the sixtest positions depends on whether the test on the unit energizes the iacceptance solenoid associated with that test position. The gripperhook, which locks the unit under test in the contact fixture, is con-nected to a release shaft, follower arm, and roller (see Fig. 3). The rollerrides in a track in which the plunger of each acceptance solenoid hes,unless removed by energizing the solenoid from its associated test cir-icuit. In the case of a defective unit, the acceptance solenoid is not ener- ■gized and the roller in passing
. The Bell System technical journal . der test at any one of the sixtest positions depends on whether the test on the unit energizes the iacceptance solenoid associated with that test position. The gripperhook, which locks the unit under test in the contact fixture, is con-nected to a release shaft, follower arm, and roller (see Fig. 3). The rollerrides in a track in which the plunger of each acceptance solenoid hes,unless removed by energizing the solenoid from its associated test cir-icuit. In the case of a defective unit, the acceptance solenoid is not ener- ■gized and the roller in passing over the plunger of the acceptance »solenoid trips the gripper hook and the spring loaded plunger in the Hcontact fixture ejects the defective unit. Units that pass all tests areejected on a turntable to the left of the operator from which they arestacked in handling trays by the operator. The turret assembly includes the test fixtures, the gripper hooks andassociated release shaft, follower arm and Ioller, and the brush assembly. DIELECTRIC STRENGTH CONTROLPANEL. RESISTANCE STANDARDS FORIMPEDANCE TEST CIRCUIT. SENSITROL RELAY FOR IMPEDANCETEST CIRCUIT. 5 KILO-CYCLE OSCILLATOR. POWER SUPPLIES AND SWITCHINGPANELS. Fig. 5 — Control panels for dielectric strength and impedance tests. AUTOMATIC MACHINE FOR TESTING CAPACITORS AND NETWORKS 1185 connected to the test fixtures. The commutator is stationary and itssegments are connected to the test circuit through permanent 4 shows the turret. Each fixture has two sections, one above theother, with the contacts wired in parallel. The lower section is designedfor making contact to stud mounted units with long terminals and theupper section for strap mounted units with short terminals. To changethe machine set-up from one fixture to the other, the turret raised or lowered by means of the hand wheel, shown on Fig. 2, lo-cated at the right of the operator. This feature was incorporated in thismachine to facilit
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
