Steam valve 5 is openeda#39;by steam pressure, but closed by aquot;air pressure On top oi pistona#39; 4 when train pipe pressure has ... When the train pipe pressure falls below - the limit, Spring 10 will force the_diaphragm to.its seat. thus cutting off theanbsp;...
|Title||:||The Air Brake, Its Construction and Working ...|
|Author||:||Marshall Monroe Kirkman|