"Ring armature of four pole dynamo; diagram of winding and connections, showing direction of the indced…
"In order to make the winding and connections clear, one coil and the commutator is shown assembled,…
"Testing the insulation resistance of a motor or generator from its winding to ground." —Croft…
"The screw is the sixth and last simple mechanical power. It may be consdered as a modification of the…
"Illustrating the principle of Siemens' drum winding. In order to make the winding and connections clear,…
This stem winding watch is a mechanical watch which is wound automatically by the natural motion of…
"Core and edge strip winding for shunt field coils of large multipolar dynamo." -Hawkins, 1917
A man seated on a stool holds a skein of yarn as a standing woman winds it. In the background is a large…