Spool Frames
Pulleys & Pumps
Photos and engineering data of spool frames, etc., from various nickelodeons.

Coinola made by Operators Piano Co., Chicago.
Cremona made by Marquette Piano Co., Chicago.
Nelson-Wiggen with wood spool frame
Wurlitzer "Long Roll Frame"
Wurlitzer CX  with 6-spool Wurlitzer Automatic Roll Changer that plays 5-tune A.P.P. rolls
Wurlitzer Harp
Seeburg & Western Electric
Nickelodeon Spool Frame With Belt Drive -- by Ed Gloeggler (040528 MMDigest)


Round Belt Transmission Design -- by Robbie Rhodes

8 January 2003