Recent Blogs
Prouty-Noble Self-Winding Brake: Cone-Clutch Chain Spool
How the Prouty-Nooje automatic brake works in elevators and hoists — engagement physics, sizing formula, worked example, and failure modes from FIRGELLI engineers.
Governor-Rope Elevator Safety Gear: Actuation Topology
Explore the governor-rope and wedge actuation chain. Calculate ideal lateral advance and guide travel from lift, guide angle and initial gap.
Safety Tackle Mechanism: How It Works, Parts, Diagram, Formula and Industrial Uses Explained
Safety Tackle explained — how the cam-and-pawl arrest mechanism stops a falling load on hoists, lifts, and mill drives. Engineering, formulas, and real examples.