Current collector, provided with a selector, for a conductor rai

Details Current collector, provided with a selector, for a conductor rai Current collector, provided with a selector, for a conductor rai

1975-01-16

1976-11-23

Lake, Roy

Geometrical instruments

339 75M, H01R 1354

Patent

active

039933857

ABSTRACT:
A current collector to be engaged with a conductor rail and specifically to desired conductors thereof, which collector comprises a box-like frame of an insulating material, in which at least three contact fingers are movably arranged so that at least two of said fingers may be brought simultaneously from a retracted position inside the frame to a position protruding from the frame to engage the conductors in the conductor rail, said fingers being operated by a camshaft member slidable in its axial direction and turnable around its axis and provided with cams to engage the fingers, the cams being so positioned that, at turning of the camshaft member, a desired pair of contact fingers, depending on the axial position of the camshaft member, is brought into contact with the corresponding conductors of the conductor rail. Preferably, the collector frame further comprises a turning lever connected to and allowing axial movement of the camshaft member.

REFERENCES:
patent: 3613045 (1971-10-01), Routh
patent: 3646501 (1972-02-01), Valtonen
patent: 3686614 (1972-08-01), Hyrylainen
patent: 3718886 (1973-02-01), Hoffmeister

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