1. Hawkins et al (2011) Circuit breaker racking apparatus, systems, and methods of using same. US patent 8, 553, 394, B2, 17 Mar 2011
2. Bower et al (2012) Remotely—operated switchgear racking device and a mounting method for the same. US patent 2012/0199450 A1, 8 Feb 2012
3. Vaill et al (2005) Racking device and power module therefor. US patent 7,019,230 B1, 3 Aug 2005
4. Varanasi KV, Nayfeh SA (2004) The dynamics of lead-screw drives: low-order modeling and experiments. J Dyn Syst Meas Control 126:388–396
5. Dragoni E (1994) Effect of thread pitch and frictional coefficient on the stress concentration in metric nut-bolt connections. J Offshore Mech Arct Eng 11:21–27