Emergency brake command read-convert device for railway train ha

Details Emergency brake command read-convert device for railway train ha Emergency brake command read-convert device for railway train ha

1986-04-29

1987-07-14

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Multiple systems

Fluid pressure and electric

303 15, 303 16, 303 20, 303 66, 303 81, 303DIG3, 188158, B60T 1374, B60T 1514

Patent

active

046798633

ABSTRACT:
A read-convert device for use on an electric brake command car of a railway train having pneumatic brake command cars. A control wire provides the electric emergency brake control on the electric brake command cars, while a brake pipe provides the pneumatic emergency brake control on the pneumatic brake command cars. A cut-off portion of the read-convert device connects a regulated source of pneumatic pressure to the brake pipe when an electric emergency release signal is provided by the control wire, provided a switch valve in the cut-off portion is set for electric brake command operation. Accordingly, an electrically-initiated, emergency brake application on the pneumatic brake command cars can be released through the control wire on the electric brake command cars.

REFERENCES:
patent: 3709564 (1973-01-01), Jeffrey et al.
patent: 3716274 (1973-02-01), Pier
patent: 4181369 (1980-01-01), Balukin et al.
patent: 4239292 (1980-12-01), Nagase
patent: 4306752 (1981-12-01), Brandt
patent: 4316640 (1982-02-01), Cripe
patent: 4533185 (1985-08-01), Krause
patent: 4598953 (1986-07-01), Wood et al.
patent: 4624506 (1986-11-01), Doto

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