He studied in the smithery school in Samokov, where he was nicknamed Timo Knyaza (the prince) and Eftim Tsarya (the tsar) by his friends.
In Samokov he was member of the Trayko Kitanchev Revolutionary Circle which produced bombs for the needs of IMARO.
They were intercepted near the town of Kochani and this was the reason for their battles with the Turkish military that lasted for few days in the mountain Plachkovitsa.
[2] After the unsuccessful attempt to enter Macedonia, Timo Angelov joined a group that was preparing bombs to blow up important military objects in Turkey during the Ilinden-Preobrazhenie Uprising.
In 1903, while a bomb was prepared to blow the harbours of Istanbul, an explosion happened that killed Timo Angelov and two of his fellow freedom fighters.