Abstract: A quick-release collar assembly for fastening weights onto a bar is disclosed. The assembly includes an annular collar defining a bore which enables the assembly to be slid onto the barbell and to snugly abut against the weights to be retained thereon. A lock shoe is disposed in a passage which communicates with the bore in the collar. A cam is provided which is reactive against the lock shoe and urges the lock shoe into retaining engagement with the bar when the cam is in a locked position. When the cam is in an unlocked position, a resilient spring acts to urge the lock shoe out of engagement with the bar, so that the collar can be easily removed from the bar.The cam is pivotally supported on a pivot shaft which incorporates a resilient bushing which is compressed when the cam is moved to the locked position. In another embodiment, the cam is reactive directly against the bar.

Abstract: In improvement in locking pawl activating for a safety belt retractor mechanism of the type having a webbing storage spool, a locking ratchet wheel associated with the spool and a locking pawl for engaging the locking ratchet wheel is described wherein a programming pawl, which is mounted for movement from a nonactivated position to an activated position with regard to a surrounding lock cup which is adapted to operate the main locking pawl, is spring bias to a nonactivated position by a straight wire spring which is mounted by a looped end thereof to a pin protruding from an end of the spool to orbit therewith.