Don't give up on it! The motor may have been burning, so it's good you removed it. A lot of treadle or hand crank machines from various companies were retrofitted with motors, or motor mounts designed to use existing hand crank mounts (e.g. Singer). The motor may or may not have the same manufacturing name as the machine. The 2 machines I have on the workbench similar to yours both have Westinghouse motors, and I'd not hesitate to guess that these were put on at a dealer's before being sold, or retrofitted in a factory somewhere, or they may have even come out of the factor that way.
I have a very similar machine, although it does not have a spoked hand wheel to accept a tractor spinner knob. I will get some pictures posted here in the next day or two to explain about the motor mounting.