Abdomen of female showing displacement resulting from tight lacing. The liver is much enlarged, and extends on the left side to the ribs, where it was folded back on itself for over an inch. The pyloric end of the stomach and the beginning of the duodenum are quite superficial below the liver, and all the viscera are displaced downwards.

Abdomen Showing Displacement Caused by Corset

Abdomen of female showing displacement resulting from tight lacing. The liver is much enlarged, and…

A device used to collect upward displacement of gas.

Kipps Generator

A device used to collect upward displacement of gas.

A wrench with two serrated jaws, one adjustable, for gripping and turning pipe.

Adjustable Pipe Wrench

A wrench with two serrated jaws, one adjustable, for gripping and turning pipe.

A form of a pump with two pumping pistons that reciprocate.

Oscillating Pump

A form of a pump with two pumping pistons that reciprocate.

A hydraulic machine used for raising liquids from a lower level to a higher level through a pipe or passage by a single piston that only pumps in one direction.

Single Acting Pump

A hydraulic machine used for raising liquids from a lower level to a higher level through a pipe or…

Sir Robert S. Ball's Theory of Screws.

Theory of Screws

Sir Robert S. Ball's Theory of Screws.

A pump is a device used to move fluids, such as liquids or slurries, or gases. A pump displaces a volume by physical or mechanical action. One common misconception about pumps is the thought that they create pressure. Pumps alone do not create pressure; they only displace fluid, causing a flow.

Vent Controlling Mechanism for Pumps

A pump is a device used to move fluids, such as liquids or slurries, or gases. A pump displaces a volume…

"As the ball of wood is dropped into the container or water, the water level rises and is caused to flow into the bucket. The water in the bucket, once weighed, is equal to the weight of the wooden ball." —Quackenbos 1859

Water Displacement

"As the ball of wood is dropped into the container or water, the water level rises and is caused to…