[Electric engineering.] . Fig. 33. 60 ELECTRIC LIGHTING. § 18 moves down a corresponding amount. Each armature isprovided with two holes, through which the conical polepieces project when the armature is pulled up. The clutchrod/ is attached to but insulated from the rocker a, and isfastened to the clutch g through the small link h. Therocker and clutch are shown in about the position they Line Line. occupy after the lamp has just been started. When thelamp is out of circuit, armature e is up at its farthest posi-tion and armature d is down, the clutch ring k rests on thetripping table / and t
[Electric engineering.] . Fig. 33. 60 ELECTRIC LIGHTING. § 18 moves down a corresponding amount. Each armature isprovided with two holes, through which the conical polepieces project when the armature is pulled up. The clutchrod/ is attached to but insulated from the rocker a, and isfastened to the clutch g through the small link h. Therocker and clutch are shown in about the position they Line Line. occupy after the lamp has just been started. When thelamp is out of circuit, armature e is up at its farthest posi-tion and armature d is down, the clutch ring k rests on thetripping table / and the carbons are together. A dashpot mis provided to steady the action of the lamp, and the cut-out preserves the continuity of the circuit and protects the § IS ELECTRIC LIGHTING. 61 shunt coils in case the carbons should fail to feed or shouldbe broken. The cut-out consists of a crosspiece ;/ carriedby the clutch rod, but insulated from it, and provided withsilver contact pieces. Below the crosspiece, two insu-lated contacts 2, 2, also tipped with silver, are the current in the shunt coils becomes excessive, thearmature e is pulled up so far that 11 is brought into contactwith 2, 2 and the lamp is cut out, unless the carbons feeddown so as to enable it to start again. 69. By referring to the diagram, Fig. 34, the action ofthe lamp under normal conditions will be understood. The
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