The compressed air would fill the cylinders, forcing the gun to rise on toggle-jointed arms, so that the muzzle was above the bomb-proof wall.
"Tom Swift and his Giant Cannon or, The Longest Shots on Record"
Victor Appleton
The chip log consists of a reel, line, toggle and chip.
"Lectures in Navigation"
Ernest Gallaudet Draper
Dr. McAllen was half inside the built-in closet at the moment, fitting a pair of toggle switches to the concealed return device in there.
"Gone Fishing"
James H. Schmitz