Internal locking arrangement for a switch machine

Details Internal locking arrangement for a switch machine Internal locking arrangement for a switch machine

1981-05-28

1983-10-04

Marcus, Stephen

Electricity: circuit makers and breakers

Electric switch details

Latches

200320, 200323, 335167, 335169, H01H 152, H01H 900, H01H 920

Patent

active

044081111

ABSTRACT:
A switch machine which is connected by two throw rods to the respective switch points to be operated includes an internal locking arrangement which includes two holding elements pivotally mounted on the respective throw rods and accommodated between a sliding member and a displacement member of the switch machine which are disengageably connected to one another. Each of the holding elements has a free end which is enlarged by two tongues respectively extending toward the sliding member and the casing of the switch machine. Depending on the position of the sliding member, the tongues are received in the associated recesses in the sliding member or in the casing to thereby either lock the throw rods in their positions relative to the casing or to entrain the same for movement with the sliding member. During trailing of the switch points, the connection between the displacement member and the sliding member is discontinued so that the sliding member can move with the holding elements and the throw rods relative to the displacement member which is arrested in its position. This connection is re-established during the subsequent throwing of the switch.

REFERENCES:
patent: 3134879 (1964-05-01), Gauthier
patent: 3267234 (1966-08-01), Stewart et al.
patent: 3492451 (1970-01-01), Ponterio
patent: 4107499 (1978-08-01), Weidler
patent: 4180716 (1979-12-01), Suzuki

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