Abstract: A workpiece elevator which includes an upright housing in which is arranged a vertically-extending endless conveyor chain having workpiece supports mounted thereon at regularly spaced intervals. The upwardly extending run of the chain is located along the outer face of the front wall of the housing. A guide rail assembly for ascending workpieces carried by the supports on the conveyor chain is constructed so that it can be mounted on or removed from the front wall of the elevator housing as an integral unit.

Abstract: A baler adapted for towing by a tractor to pick up a windrow of hay and roll the hay into a cylindrical bale of substantial size and weight. The baler includes a front mounted pickup and a bale forming structure directly behind the pickup. The bale forming structure is of the type including an endless lower belt and a plurality of upper belts defining an expansible bale forming zone in conjunction with the lower belt. Suitable bale-density and bale-discharge structures are included. The baler includes a wheeled frame which provides a pivot connection for a draft tongue laterally offset from the baler centerline. The draft tongue extends forwardly for hitching to a tractor which can be disposed in towing relation alongside the windrow. A hydraulic cylinder is mounted between the baler frame and the draft tongue for powered steering of the baler relative to the windrow.

Abstract: A gravity conveyor of the chuting or rollerway type wherein workpieces of regular or irregular shape having easily damaged surfaces are supported within protective work carriers which roll or slide along the conveyor. The work carriers are of cylindrical shape and formed with a through co-axial bore.