• Skip to primary navigation
  • Skip to main content
MBSI

MBSI

Musical Box Society International

  • Home
  • MBSI Member Login
    • Recover Lost Password
  • Chapters
  • Events
  • Instruments
    • MBSI Member Instruments
    • MBSI Collection
  • Advertisements
  • MBSI Store
  • Article Index
    • Presto
  • Contact
  • Show Search
Hide Search

duplex roll mechanism

· January 15, 2016 ·

Roll frame or spoolbox assembly in an electric piano, photoplayer, or orchestrion which accommodates two rolls, so that one roll can play while the other is rewinding or at rest. Made by Hupfeld, Seeburg (for photoplayers), Wurlitzer (photoplayers and band organs), and others. Also, duplex roll changer: two revolver mechanisms or automatic roll changers (also listed in this Glossary) arranged side by side, with several rolls on each changer mechanism. These were made by Hupfeld and Philipps.

D

MBSI

Copyright © 2025 Musical Box Society International • Log in