| Digest Nr | Subject and Author |
 |
| 2019.10.28.05 | Constant Torque vs. Constant Speed Roll Drive, from Paul Rumpf |
| 2019.10.28.05 | Constant Torque vs. Constant Speed Roll Drive, from Paul Rumpf |
| 2012.02.06.03 | Constant Tension Brake for Roll Supply Spool, from Randolph Herr |
| 2000.11.08.08 | Constant Tension Brake for Roll Supply Spool, from Randolph Herr |
| 2000.11.06.13 | Constant Tension Brake for Roll Supply Spool, from Ken Vinen |
| 2000.11.05.10 | Constant Tension Brake for Roll Supply Spool, from Randolph Herr |
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