Hockey played on Jackson Square Hamilton in the 1960's.
Not the bus at the far left side of the picture: it's electric. It has antennae (or whatever those diagonal things are called) in contact a track of overhead wires.
I remember such buses used in Chicago when I was very young (i.e., later 1950s). These were, of course, limited to the streets where the tracks ran, up there near the telephone and other electrical wiring. I think that they were capable of turning corners while staying connected, though they mostly ran on straight lines anyway.
They dropped sparks all the time. Some times the contacts would come loose and the bus would stall, so the driver had to get out, go up on the bus roof and shove the towers back into position, with much more sparking. Once. we got stuck until a repair crew came out.
Upon seeing a bus running
without the connection, I was amazed. Adults explained to me that the new ones were the buses of the future, powered by gasoline just like an automobile or truck. Indeed, within a few years (my perception), the electric buses and their tracks had been entirely replaced. I'll bet that they were gone by 1960, or a short time afterward.
Maybe Hamilton was behind Chicago in this regard.