Tik-Tok (Oz)
Tik-Tok is a fictional character from the Oz books by American author L. Frank Baum. He has been termed "the prototype robot," and is widely considered to be the one of the first robots (preceded by Edward S. Ellis' Huge Hunter, or The Steam Man of the Prairies, in 1868) to appear in modern literature, though the term "Robot" wouldn't be used until the 1920s by the play Rossum's Universal Robots.
Baum's character
Tik-Tok (sometimes spelled Tiktok) is a round-bodied mechanical man made of copper, that runs on clockwork springs which periodically need to be wound, like a wind-up toy or mechanical clock. He has separate windings for thought, action, and speech. Tik-Tok is unable to wind any of them up himself. When his works run down, he becomes frozen or mute or, for one memorable moment in The Road to Oz, continues to speak but utters gibberish. When he speaks, only his teeth move. His knees and elbows are described as resembling those in a knight's suit of armor.
As Baum repeatedly mentions, Tik-Tok is not alive and feels no emotions. He therefore can no more love or be loved than a sewing machine, but as a servant he is utterly truthful and loyal. He describes himself as a "slave" to Dorothy and defers to her.