Abstract: The present invention provides a product moving set up comprising a guide member and a carrier member movable along the guide member. A ball race is provided to either side of the set up and each ball race is fitted with rolling balls which recirculate through the ball race as the carrier member moves along the guide member. Each ball race is formed by cooperative race portions on the guide member and the carrier member with the cooperative race portions comprising a pair of back to back first race portions on the carrier member and a pair of second race portions on the interior of the guide member and facing the first race portions. The first and second race portions on each side of the set up are all in vertical alignment with one another.

Abstract: The present invention provides a roller blind construction comprising a flexible blind which is windable for lowering and raising the blind. The blind has a downward weighting which increases as it is lowered and the construction further includes a conuterbalancing coil spring which products an upward pull increasing in direct relation to and neutralizing the downward weighting without lifting the blind.