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UNIVERSAL, HEAVY-DUTY SLING

  • US 3,602,544 A
  • Filed: 01/29/1969
  • Issued: 08/31/1971
  • Est. Priority Date: 01/29/1969
  • Status: Expired due to Term
First Claim
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1. In an aerial recovery system for enabling a helicopter to transport an aircraft, two slings each having a plurality of bands for cradling the aircraft at spaced points along its fuselage, means for equalizing the strain on the several bands including a D-shaped fitting at each end of both slings, means for separately pivotally connecting the bands of each sling in side-by-side relationship to the straight sides of said D-shaped fittings, and a hoist band assembly having a connection to a hoist hook including pins at its ends which extend through said D-shaped fittings and rest on the inner curved surfaces of the curved sides of the latter, said hoist band assembly including a self-locking quick-adjusting device having an eye for attachment of the hoist hook and having a plurality of rollers forming a labyrinth through which the band is threaded for permitting its adjustment along said hoist band when the latter is slack and for automatically locking it in adjusted position when the latter is taut.

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