Boots – shoes – and leggings
Patent
1990-04-19
1992-05-19
Lall, Parshotam S.
Boots, shoes, and leggings
191 603, 191 85, 191 90, B60L 516
Patent
active
051154056
ABSTRACT:
A device (1) for adjusting the bearing force of a pantograph (30) of a railroad train set (10) on a catenary wire (2). The pantograph (30) has, at its upper end, a bow (3) in mechanical and electrical contact with the catenary wire (2), connected mechanically to an actuator (7, 34) exerting a nominal force on it at predetermined points and in a predetermined direction. A device (31) measures the contact force between the bow (3) of the pantograph (300 and the catenary wire (2) supplies information relating to the measured force. A transmitter (5, 4a) transmits the measurement information from the measuring device (31, 40) into an appropriate zone of the railroad train set (10). A processor (60, 20) processes the transmitted information and set-point range signals and supplies logical control signals. The actuator (6, 7) is controlled from the logical control signals when the measured contact force exceeds a predetermined maximum force threshold (Smax) or in responses to predetermined external control signals.
REFERENCES:
patent: 3576957 (1971-05-01), Tustin
patent: 4034832 (1977-07-01), Lewis
patent: 4301899 (1981-11-01), McSparran et al.
patent: 4572950 (1986-02-01), Harmer
patent: 4618764 (1986-10-01), Harmer
Cathala Jacques
Forte Pascale
Cosimano Edward R.
Faiveley Transport
Lall Parshotam S.
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