Article storage (conveying) apparatus; Machines for the storage of packaged goods; Mechanical handling installations for storage purposes; Storage systems (mechanically, pneumatically or electrically operated); Stacking machines (other than fork-lift trucks); Rack and pinion jacks; Rack hoists; Process control units (hydraulic); Process control units (mechanical); Process control units (pneumatic); Motorised work platforms for hoisting purposes; Motorised work platforms for lifting purposes; Mechanisms (electric) for use in adjusting the position of racking; Mechanisms (electric) for use in adjusting the position of shelving; Powered mobile racking; Powered mobile shelving; Apparatus for transporting articles (pneumatic); Handling apparatus for loading and unloading; Lifting apparatus; Mechanical control apparatus (electric); Mechanical control apparatus (hydraulic); Mechanical control apparatus (pneumatic); Mechanical control devices for lifting apparatus; Mechanical control operating apparatus; Motor driven apparatus for hoisting (not transport); Motor driven apparatus for lifting (not transport)