Accession Number : ADD003656

Title :   Fail Safe Centrifugal Clutch.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : O'Steen,James K

Report Date : 18 Jan 1977

Pagination or Media Count : 7

Abstract : A fail-safe, velocity-discriminating centrifugal clutch having a biased, motion-transmitting pawl element displaceable at speeds at or above a predetermined threshold value to an enagement position with a driven ratchet assembly. Under conditions of missing of malassembled parts, clutch operation is in the fail-safe mode with no transmission of rotary motion. In the engaged position, no centrifugal force generated by the pawl element is applied to the ratchet assembly. This feature, plus the radial contact between the pawl element and the ratchet assembly, allows operation between misaligned input and output shafts, even at high rotational speeds. (Author)

Descriptors :   *Patents, *Clutches, *Centrifugal force, *Fail safe, Shaft couplings, Turbine wheels, Propeller blades, Air drop operations, Weapon delivery, Airspeed, Discrimination, Rotation, Safety and arming(Ordnance), Storage, Handling

Subject Categories : Machinery and Tools
      Safety Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE