heliograph

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Many of the instruments used in early operations of the United States Army Signal Corps were adaptations of equipment used by the Plains Indians, particularly that of the heliograph.

From SAT Tests

In the flash of heliograph signals in the North Sea haze and the speaking of great naval guns, the world has lately read a certain statement about the British Empire.

From Time Magazine Archive

He found the heliograph signal mirror at his side, sighted it upon the ship, and worked the mirror rapidly.

From Salvage in Space by Williamson, Jack

The heliograph would be useless in stormy weather or in fog.

From El Diablo by Groesbeck, Dan Sayre

It was the mirror of a heliograph flashing out across leagues of gray-green hills to the rocky pulpit of the Pigeonnier.

From The Maids of Paradise by Chambers, Robert W. (Robert William)