A later method uses a mechanical pump worked from one of the crossheads.

During the late 19th century, Olean had a few mills, a bicycle company, a manufacturer of mechanical pumps, and a glass works, among other factories.

These are supplementary pumps and do not replace the main, mechanical, oil pump.

The one hope of saving Megan's life was an operation to implant a mechanical pump that would assist her heart.

Whirling water movement, provided by mechanical pumps, has been used in water tanks since at least the 1940s.

It gets its name because its constant eruptions make a sound similar to that of old style mechanical pump.

The patients involved were receiving coronary bypass surgery or mechanical pumps to keep them alive until they could get a heart transplant.

Everyone in the room could tell by its sound when the mechanical pump was finished with its leg of the relay.

The machine had interchangeable valves, total loss oil system with mechanical pump and an emergency hand one.

Smaller reactors also make it easier to design cooling systems without mechanical pumps or the need for quick action by operators.