spiral spring

American  

noun

1. a form of spring consisting of a wire coiled in a helix.

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Etymology

Origin of spiral spring

First recorded in 1680–90

Example Sentences

Here she uses the spiral spring toy known as the Slinky.

From New York Times

The same thing will happen if a spiral spring be substituted for the coach spring.

From Project Gutenberg

The spiral spring is described as received in two cups,—one above and one below.

From Project Gutenberg

The force of the blow is regulated by the height to which the hammer is raised, which may be adjusted by the nuts beneath the spiral springs.

From Project Gutenberg

Here one spring only is used, and it is first made a straight spiral spring, and then bent round and its ends united.

From Project Gutenberg