beginning in 1715. The term is also used for components in pneumatic cylinders and weaving loom.

History

The first recorded use of the term tappet is as part of the valve gear in the 1715 Newcomen engine, an early form of steam engine. Early versions of the Newcomen engines from 1712 had manually operated valves, but by 1715 this repetitive task had been automated

1.Previous
3.Next