The Block Signal 1926

Synopsis:

Joe Ryan, a veteran train engineer, is demoted to a flagman position after a disastrous crash-- one caused by his cowardly and opportunistic partner. Though Ryan's failing eyesight is named as the cause of the crash, he's undeterred as he designs an automatic braking invention.

Directed by: Frank O'Connor
Runtime: 59 minutes
Cast:
Ralph Lewis
Ralph Lewis
'Jovial Joe' Ryan 
Jean Arthur
Jean Arthur
Grace Ryan 
Hugh Allan
Hugh Allan
Jack Milford 
George Chesebro
George Chesebro
Bert Steele 
Sidney Franklin
Sidney Franklin
'Roadhouse' Rosen 
Leon Holmes
Leon Holmes
'Unhandy' Andy