DEVICE FOR CHECKING FREQUENCY CHARACTERISTIC OF CURRENT COLLECTORS Russian patent published in 2000 - IPC

FIELD: railway transport; main-line vehicle current collectors. SUBSTANCE: proposed device has base with fitted- on current collector. Current collector pan is in contact with beam hinge- secured by one end on horizontal movable truss. Bell crank is hinge- mounted on truss, one end of bell crank being coupled with free end of beam. Other end of bell crank is furnished with spring and roller engaging with rigidly secured vertical sine profile. Angle between arms of bell crank is right. Vertical reciprocating motion drive installed on base is coupled with truss. EFFECT: improved quality of checking of current collector characteristics by taking dropper spans into account. 1 dwg