DESCRIPTION: Sash counterbalances replace window weights, chains and pulleys for use in older and historic wood windows. It allows the owner of an older home to insulate the area where the rope and weight were located while allowing window to operate easily. The "Pullman" spring sash counterbalance has been written about in many articles. See some helpful links below.
HELPFUL LINKS: PULLMAN COUNTERBALANCE ASSEMBLY INFOAssembly Video from "This Old House":
http://www.thisoldhouse.com/toh/video/0,,20051635,00.htmlPullman Mfg. Website(detailed specifications and assembly info)
http://www.pullmanbalances.comSpring Balances Bounce Back(Application info from "Old House Journal"):
http://www.oldhousejournal.com/magazine/2004/april/spring_balance.shtml