Here our friend Andrew in Canada found more information about the Eames Vacuum brakes.
http://www.catskillarchive.com/rrextra/chapt22.Html
Thor
Thor Windbergs
Ludwigsburg, Germany
Facebook: Thor Windbergs
Volunteer G&L RR 86-88
Fireman/Engine Watchman D&S 90-94
Member Frankfurter Feldbahn Musuem, feldbahn-ffm.de
Member IFPPC (Society for Preservation of Perus Pirapora Railroad) Brazil www.internationalsteam.co.uk/trains/brazil54.htm
Member German Standard gauge Group www.eisenbahnfreunde-zollernbahn.de