Standard Timing Model or Mechanical Minimizer

[seadweller30]

hi there, small problem so hoping for some advice. Have recently made unemployed but have passed aptitude tests for an engineering job in a tobacco firm. My next test is a practical one, which consists of studying a machine, then fixing faults purposely introduced by the examiner. Job prospects are poor in my area so i am trying to arm myself with as much information as possible, in order to give myself a good chance of success. The machine is the 'Standard Timing Model' or 'Mechanical Minimizer'. Has anyone sat this test? can anyone provide me any information that would be useful to me on the day of testing? have seen a few pictures of it, but thats about it!
any help would be greatly appreciated!
james.