Captain Z-Ro was a space opera serial from the 50s playing off popular serial characters like Buck Rogers and Flash Gordon.
He had a device called the ZX-99 which was a time machine used to view the past but also send people back in time, usually in order to alter it in some way. While it was always used to go back in time, mainly as a way to teach kids history it stands to reason the ZX-99 could also travel into the future.
The serial was not renewed and subsequent renewal efforts in the 80s were rejected by the copyright office.