Pulley with automatic emergency brake

摘要: A pulley with automatic emergency brake comprises a braking system having right-angled triangular double walled rocker arm secured to the outside yoke by pivot pins. snatch block is fastened at right-angle level of near pull rope. An adjustable counterweight mounted smaller acute angle. At greater angle, transverse axle pin bearing grip wedge can be inserted between rope lodged in race and bushing race.