Mail delivery signal device for mailboxes

In a mailbox the combination comprising a horizontally-extending housing, an opening at one end of the housing for the placement of mail endwise therein, a closure door hingingly journalled to the housing along the lower end of the housing opening and swingable vertically upwardly against said opening for normally maintaining the housing opening in closed condition, an elongated mail delivery signal arm member, and means for hingingly journalling one end of said signal arm member with respect to a lower front portion of said closure door so as to be swingable between upper and lower positions of rest, the relative positions of said closure door when closed and the journalling axis of said signal arm member journalling means being such that the free end of said signal arm member gravitationally abuts the front of said closure door when said arm member is in its upper position of rest, whereby, upon the downward swinging opening motion of the closure door for the insertion of mail through said opening, the surface portion of said door against which the free end of said signal arm member abuts will be brought to a position forwardly of the vertical plane defined by said signal arm member journalling axis so as to cause said signal arm member to fall automatically to said lower position of rest, and said journalling axis of said signal arm member journalling means further being so inclined as to define an angle with the journalling axis of said closure door, whereby said signal arm member, when in its lower position of rest, projects angularly downwardly and outwardly to one side beyond the outer periphery of said housing when viewed from behind said housing.