AN INGENIOUS PUMP.
A pump that is probably both the •smallest and the simplest m the world, lias been designed by a British engineer. It consists of a piece of rubber tubing, bent into a loop, with a wooden frame outside the loop and a circular cam inside. By placing the cam out of centre and revolving it the rubber tube is squeezed m a rotary direction, giving a kind of "milking" action, which will force liquid through it. One end of the tube then becomes the suction pipe and the other the delivery pipe of a very neat and efficient pump. The inventor, after having made a pump out of a serviette ring and a piece of thin rubber tubing, has taken out a patent for a regular engineering mechanism on the same principle. He proposes to iise a flexible rubber or leather band, suitably water sealed on its width, m place of the tubing, and a cast iron or gunmetal casing, with suction and delivery branches.* This type of pump has no valves, and will, therefore, be suited for use m cases where pump .valves are apt to give trouble.
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Bibliographic details
Ashburton Guardian, Volume XLII, Issue 9373, 31 October 1921, Page 3
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192AN INGENIOUS PUMP. Ashburton Guardian, Volume XLII, Issue 9373, 31 October 1921, Page 3
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