TY - JOUR
AU - McWilliam, I G
AB - Laboratory and workshop notes plunger type, in which the plunger carrying the switch contacts is sufficiently raised, thereby listing the glass-mercury switch and completing, with the help of a pellet of mercury, the is attracted into the solenoid as current is allowed to pass electrical circuit through the tungsten leads T. These leads through the coil, thereby completing the circuit. are connected to an electric circuit for starting or stopping The knob K is adjusted for a desired rate of flow, and so the inotor of that compressor which uses this liquid as long as the rate of flow exceeds that, the float Fis kept raised coolant. Fig. 2 shows the method of connecting the flow and hence the motor remains connected to the supply line. When the rate of flow falls below the desired value, the spring regulator to the circuit-breaker which is of solenoid and S in the stem of the float F pushes the float down, and the mercury-switch is tripped down disconnecting the solenoid coil from the mains. The iron core of the coil is demagnetized and in turn releases the 3-pole plunger, thereby disconnecting the compressor motor from the supply. The switch can be 
TI - An oscillating-plate differentiator for spectrophotometry
JF - Journal of Scientific Instruments
DO - 10.1088/0950-7671/36/1/425
DA - 1959-01-01
UR - https://www.deepdyve.com/lp/iop-publishing/an-oscillating-plate-differentiator-for-spectrophotometry-0yfK8aqEbF
SP - 51
VL - 36
IS - 1
DP - DeepDyve
ER -