The History of The Oil Well Pumpjack

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The Pumpjack

The overground drive for a countering piston in an oil rig, a pumpjack is used to automatically lift oil out of the well if insufficient bottom-hole pressure exists for the liquid to course all the way to the surface. Pumpjacks have been pumping oil for decades, and although some differences of opinion prevail as to the history of the oil well pumpjack, its construction can be approximated to the 1850’s. However, the pumpjack didn’t enter the fray until almost seventy years later.

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The History of Mechanical Door Locks


History

A lock is a means that is usually used to secure a drawer, lid or door by preventing access or use. A mechanical lock, on the other hand, is a device that keeps a door locked or closed until there is an activation of a release mechanism.…

January 18, 2018