Hi Jon, I believe Strike The Bell would've been used at the Downtown pumps. The're like a set of wheels at oppisite ends of an axel, each wheel having a handle sticking out of it, one handle being in the upper position when the other is in the lower position & 2 men at each handle, while one handle in rotating the wheel by spinning it downards & away the other is spinning it upwards & in & each man is working oppsite their facing partner. This motion is smother & not choppy as the lage brake pumps with their up & down motion like on one of those little pump railroad carts. Barry