Slip-feed strapping machine

Abstract From the Canadian patent

A cyclicly operable machine for providing a tensioned loop of fusible thermoplastic strapping about a loosely positioned object wherein a hoop-mounted slip-feed carrier is caused to orbit the object in one direction while one end of the strapping is held by a gripper. In so orbiting, the carrier progressively wraps a closed loop about the object, the loop having overlapping ends which become sealed to each other by a friction-fusion operation. Such sealing accomplished by a cooperating anvil and vibrator which move into the strap path to create the seal and away from the path to allow the sealed loop to completely seize the object after which a cutter severs, the excess strapping from the …