Pieces of Morse's telegraph apparatus, US Patent # 4,453
name: label: inventor
content: Morse, Samuel Finley Breese
label: inventor
content: Morse, Samuel Finley Breese
notes: label: Description
content: This telegraph receiver is associated with United States patent 4,453 granted April 11th, 1846 to Samuel Morse. The patent covered the use of a magnet in the telegraph receiver to amplify current from the battery and magnet connected to the main telegraph line. This enabled the telegraph to receive messages over longer lines. The patent also specified a combination of apparatuses to move and mark a paper roll in order to record the incoming message.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
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content: Communications
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content: American Stories exhibit
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content: Invention and the Patent Model
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content: Patent Models
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.251265
label: catalog number
content: 251265
label: accession number
content: 48865
label: patent number
content: 4453
objectType: label: Object Name
content: telegraph apparatus
label: Object Name
content: telegraph relay
label: Object Name
content: telegraph receiver
physicalDescription: label: Physical Description
content: wood (housing material)
label: Physical Description
content: iron wire (conductors material)
label: Physical Description
content: brass (parts material)
label: Measurements
content: relay: 7 in x 11 1/4 in x 4 1/2 in; 17.78 cm x 28.575 cm x 11.43 cm
label: Measurements
content: register: 8 in x 17 1/2 in x 4 in; 20.32 cm x 44.45 cm x 10.16 cm
label: Measurements
content: tape reel: 9 1/4 in x 10 in x 1 1/4 in; 23.495 cm x 25.4 cm x 3.175 cm
label: Measurements
content: coil disks (each): 1/8 in x 12 1/2 in; .3175 cm x 31.75 cm
label: Measurements
content: key on base: 2 in x 2 3/4 in x 10 in; 5.08 cm x 6.985 cm x 25.4 cm