revolvable

Figs. 1 and 2 represent, upon a scale of about 1/10, two types of torpedoes, the greatest number possible of the parts of which are made revolvable, so as to render the torpedoes as dirigible as the gyrating motion permits of.

Scientific American Supplement, No. 711, August 17, 1889 Various

The bottoms of those boxes are flaps which rest through their wire projections on a revolvable disc _d_, which is mounted on a shaft _l_.

Acetylene, the Principles of Its Generation and Use W. J. Atkinson Butterfield

-- Numerous instruments have been devised to determine the rate of vibration of different materials and structures, the most important being the _vitascope_, which has a revolvable cylinder, blackened with soot, and this being rotated at a certain speed, the stylus, which is attached to the vibrating body, in contact with the cylinder, will show the number per second, as well as the particular character of each oscillation.

Practical Mechanics for Boys J. S. Zerbe

-- This instrument is the outgrowth of the stylus forms of the apparatus described, but in this case the stylus, or needle, is fixed to a metallic diaphragm, and its point makes an impression on suitable material placed on the outside of a revolvable cylinder or disc.

Practical Mechanics for Boys J. S. Zerbe