Abstract: The present invention relates to a set of disks rotatably attached to a sole plate or plates or other footwear to effect a roller skate mode, such disks to be capable of retraction or removal to effect a walk/run mode.

Abstract: A trailable pontoon system that may be pulled behind a road vehicle and that may facilitate the launch of said road vehicle to effect a waterborne configuration comprised of the pontoon system and the vehicle. The trailable pontoons are capable of being unfolded by means of a rotating winch bar and are capable of separation to permit the vehicle to enter between the pontoons and be lifted into a mounted configuration upon the pontoons utilizing aforesaid winch bar. The launch and retrieval procedures utilize a combination of the pontoon's floatation capability, the vehicle's structural integrity, drive train and braking system and the facilitative function of the rotating winch bar. The vehicle/pontoon configuration, when waterborne, is a hybrid of the vehicle's inherent structural integrity and the floatation capability of the pontoons.

Abstract: The present invention relates in general to a roof construction and more particularly to a roof composed of a main spanning arch or arches above or beneath which other arches or arch sections rotate horizontally for the purpose of covering large areas such as stadiums, arenas, or storage and manufacturing areas, which roof can be moved from an open position where the area is exposed to the weather elements to a closed position wherein the area is shielded from the weather elements.

Abstract: The invention relates to the production of a wholly mechanical pulp of improved strength properties. The lignocellulosic material is fed into a substantially closed chamber where it is mechanically abraded under a power input of fifteen or more horsepower days per ton. During the abrading step, the material is maintained in an inert gaseous atmosphere of a pressure of ten to eighty psig, preferably twenty to forty psig.

Abstract: The invention relates to the production of a wholly mechanical pulp of improved strength properties. The lignocellulosic material is fed into a substantially closed chamber where it is mechanically abraded under a power input of fifteen or more horsepower days per ton. During the abrading step, the material is maintained in an inert gaseous atmosphere of a pressure of ten to eighty psig, preferably twenty to forty psig.