Bell's sound amplification device

GPTKB entity

Statements (53)
Predicate Object
gptkbp:instanceOf invention
gptkbp:associatedWith Alexander_Graham_Bell's_experiments
gptkbp:component diaphragm
resonator
horn
amplifying chamber
gptkbp:design simple mechanical structure
gptkbp:developedBy gptkb:Canada
gptkb:United_States
gptkbp:exhibits gptkb:Alexander_Graham_Bell
public exhibitions
gptkbp:firstHeld educational institutions
community events
educational settings
churches
concert halls
large gatherings
educational demonstrations
auditoriums
lecture halls
public venues
scientific demonstrations
gptkbp:function increase sound volume
https://www.w3.org/2000/01/rdf-schema#label Bell's sound amplification device
gptkbp:improves later sound amplification technologies
gptkbp:influenced acoustic engineering
gptkbp:influencedBy telephone technology
gptkbp:inspiration modern hearing aids
gptkbp:inspiredBy natural acoustics
gptkbp:inventor gptkb:Alexander_Graham_Bell
gptkbp:legacy foundation for future audio devices
gptkbp:marketedAs schools and institutions
gptkbp:material metal
gptkbp:operatedBy human voice
gptkbp:patentAbstract gptkb:Canada
gptkb:United_States
gptkbp:patentNumber US246,271
gptkbp:purpose amplifying sound
gptkbp:relatedTo vibration
sound transmission
sound waves
acoustics
gptkbp:significance pioneering sound technology
gptkbp:successor electronic amplifiers
gptkbp:type acoustic device
gptkbp:usedIn telecommunications
music performances
public speaking
broadcasting
theatrical performances
gptkbp:wasEstablishedIn 1879
1880
gptkbp:yearEstablished 1880