Rock-Ola Musikboxen im Archiv von Jukebox-World |
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Rock-Ola Mechanismen –
Mechanisms by Rock-Ola |
Copyright |
Paul H. Smyth |
Smyth was the engineer who designed the mechanism for Rock-Ola. The Smyth mechanism was used on ALL Rock-Ola models right up until the 45rpm mechs were introduced. The early Rock-Olas used a 12 and 16-selection system, later expanded to 20 selections, but in all cases, it was a Smythe mech. The Smyth mechanism looked like the Wurlitzer Simplex mechanism except that it had substantial engineering differences. First off, the record stack had 20 selections, not 24; the trays swung out from left to right – (from the rear of the stacker) exactly opposite the Simplex. Also, the Smyth had a post that rode up and down the stack when a selection was made and a mechanical “finger” would unlock the tray from the stack, enabling it to swing out completely before the turntable rose…
The Smyth mechanism also used a scissor-like device so that if you
look at it while it’s cycling, you will see what I am talking about.
Wurlitzer Simplex mechs used a different electro-mechanical
technology. The one drawback of the Smythe mech was it needed
constant lubrication. There is a single oil hole under the turntable
for this purpose. (Information: Edward M. Liss) US-Patents: 2,159,832 - filed 1934 <> 2,119,251 <> filed 1935 <> 2,159,833 - filed 1935 <> 2,159,834 - filed 1936 |
Die Angaben haben keinen
Anspruch auf Vollständigkeit oder Richtigkeit. |
Copyright by Stamann Musikboxen |