Encyclopedia

crank arm operator

roto operator

roto operator
A gear-driven device, turned with a small crank handle or knob; used to open and close jalousies, awning windows, casement windows, and fanlights.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
Copyright © 2003-2025 Farlex, Inc Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.