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CONVEYING MACHINE WITH PROCESS SELECTOR

  • US 3,760,927 A
  • Filed: 07/15/1971
  • Issued: 09/25/1973
  • Est. Priority Date: 07/15/1971
  • Status: Expired due to Term
First Claim
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1. A conveying machine comprising a framework having at least one work carrier guidably mounted thereon for travel through a series of work stations, said work carrier including a frame and a carriage guidably mounted for vertical movement on said frame and incorporating workpiece supporting means thereon, lift means for moving said carriage to and from a raised position and a lowered position, transfer means for advancing said work carrier along said framework, and selector means on said carrier for selectively retaining said carriage thereon in a raised position independently of said lift means, said selector means comprising an elongated member mounted on said carriage for pivoting movement about its longitudinal axis and extending substantially transversely of the direction of travel of said carrier, coacting means on said elongated member and movable thereby to and from an engaging position with said frame for retaining said carriage in said raised position and a non-engaging position, biasing means for yieldably biasing said elongated member and said coacting means thereon toward said non-engaging position, a plurality of selector means arranged in transversely spaced relationship along said elongated member and individually selectively positionable in an active position and a neutral position, and cam means at a work station operatable to contact selected ones of said selector means when disposed in said active position for pivoting said elongated member and moving said coactive means to said engaging position in opposition to said biasing means in response to movement of said carriage.

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