Postal pneumatic tube system

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:International_Standard
gptkbp:carriedItems	letters small parcels
gptkbp:declinedAfter	mid-20th century
gptkbp:deployment	London, 1853
https://www.w3.org/2000/01/rdf-schema#label	Postal pneumatic tube system
gptkbp:introducedIn	mid-19th century
gptkbp:inventedBy	gptkb:Josiah_Latimer_Clark
gptkbp:legacy	historical urban infrastructure inspired modern pneumatic tube systems in buildings
gptkbp:maximumSpeed	up to 40 km/h
gptkbp:notableCity	gptkb:Berlin gptkb:Boston gptkb:Buenos_Aires gptkb:Chicago gptkb:London gptkb:Melbourne gptkb:New_York_City gptkb:Paris gptkb:Philadelphia gptkb:Prague gptkb:Rio_de_Janeiro gptkb:Rome gptkb:St._Petersburg gptkb:Sydney gptkb:Tokyo gptkb:Vienna
gptkbp:notableFeature	air compressors switching stations vacuum pumps sealed capsules station terminals underground tubes
gptkbp:operatedBy	postal services telegraph companies
gptkbp:operates	compressed air
gptkbp:peakPeriod	late 19th century
gptkbp:preservedIn	gptkb:Paris_postal_tube_system_(disused) gptkb:Prague_postal_tube_system
gptkbp:relatedTo	gptkb:pneumatic_dispatch gptkb:pneumatic_tube_transport telegraphy mail delivery
gptkbp:replacedBy	electronic communication motorized mail delivery
gptkbp:status	mostly obsolete
gptkbp:tubeDiameter	typically 7-15 cm
gptkbp:usedFor	transporting mail
gptkbp:bfsParent	gptkb:World's_Fair_1900
gptkbp:bfsLayer	6