Abstract: A wheeled platform to be attached to the feet of an exerciser and rolled back and forth along the ground in front of the exerciser while he or she pulls on handles against resistance. The handles are attached to cords which wind around pulleys which are rotatably attached to a resistance mechanism mounted on the wheeled platform. Simultaneously pulling the handles away from the platform and pushing the wheeled platform away from the handles as in a rowing motion operates the resistance mechanism to provide a resisting force for exercise, and operates an energy dissipating device to shed the energy created by the resistance mechanism. After the handles have been pulled the desired distance from the platform the resistance is disengaged and a rewinding mechanism rewinds the cord as the wheeled platform is pulled back towards the user.

Abstract: A method of arranging connecting material such as a suitable adhesive hot melt material in patterns on corrugated boards and assembling of pallets with legs at a remote site. The sheet or sheets of corrugated material are assembled by attaching the sheets singularly or in spaced apart juxtaposition to legs with connecting material therebetween. The connecting material may be first placed on each sheet in patterns for attaching the prismatic or tubular legs and then the sheets and prismatic or tubular legs are pressed together. The assembling device includes a central forming position and one or more stacking areas. The assembling device also includes connecting material activating means or connecting material supply means, stacking means, and press means. The stacking means receive the prismatic or tubular legs and at least one corrugated sheet for relative positioning. Each stacking means moves the sheets and legs into the central forming position for attachment purposes.

Abstract: A practice tennis device, whose weight is preferably equal to the weight of a regulation tennis ball, that includes a section of a tennis ball or a sectioned tennis ball with a flight cone means equal in weight to the removed section of the tennis ball. The weight and feel by the players using tennis racquets in contact with the practice tennis device is very similar to a conventional tennis ball while the aerodynamic qualities are similar to a badminton shuttlecock thereby allowing a user to practice tennis in a restricted practice area.