Scissor lift control apparatus and method

Screw lift

Sealing device with magnetically movable door seal for a...

Secondary thyristor control for ac wound rotor motors

Secure optical interface for elevator system

Self centering elevator cable safety brake

Self-adjusting control valve for elevators

Self-adjusting elevator leveling apparatus and method

Self-adjusting proximity detecting apparatus

Self-aligning skip hoist for use in sinking shafts

Self-balancing synchronization assembly for a hydraulic...

Self-centering device for compensation ropes or chains of an...

Self-elevating building crane

Self-loading and self-propelled haulage vehicle

Self-locking elevator brake

Self-propelled elevator using electric linear motor as...

Self-propelling transport equipment for persons

Self-raising work platform assembly

Service elevator for printing presses

Set value transmitter for a drive regulation apparatus