The Broadway Drifter (1927)

Bob Stafford the wastrel son of a wealthy businessman is disowned by his father for his reckless and irresponsible ways He changes his name and opens a gym for wealthy young girls hoping to land a rich and pretty wife He meets and falls for pretty young Eileen but a rival soon drives him out of the gym business He gets a job in an airplane factory owned by Eileens father who is soon told by a rival that Bob is really out to steal a new airplane invention so he can give it to his father