friction shoe[′frik·shən ‚shü]
An adjustable friction device that holds a window sash in any desired open position.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
An adjustable or preloaded friction device used to hold a sash in any open position.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.