Pin roller

The pin roller is mostly a component of jukeboxes .

Reproduced pin rollers as a work of art

Musical applications

Starting with music boxes and flute clocks to complex jukeboxes, slowly rotating rollers equipped with pens are used to determine the timing of the notes to be played. The pin roller thus represents an information carrier, a program representation . At the same time, the pin roller can contain the power and energy transmission for sound generation , if z. B. resilient tongues of music boxes are raised by pins and suddenly released to swing.

Pin rollers can be driven with a hand crank, clockworks with springs or weights, pneumatically or electrically.

Alternatives to the pen roller are punch cards , punched strips , electrical or electronic information.

Technical applications

Pin rollers can also be used in technical applications, for example as

• Mill components for hard crushing of diamond and metal ores
• in wool combs

Individual evidence

1. ↑ Joachim Stange-Elbe: Computer and Music. Walter de Gruyter GmbH & Co KG, 2015, ISBN 978-3-486-72019-8 , p. 237 ( limited preview in the Google book search).