Abstract: A tractor transmission mechanism in which power ON/OFF operations of the travelling system and the PTO system may be carried out in succession by double action clutch means by utilizing a tractor transmission case of the type in which power ON/OFF operations of the travelling system and the PTO system are carried out at the same time by a main clutch.

Abstract: The ground sweeper has an endless screen movably supported upon a screen carrier which is attached to a wheeled trailer chassis such that the screen run makes an acute angle to the ground. A hydraulic motor powered hydraulically from a hydraulic pump run by the power takeoff unit of the pulling tractor rotates the screen drive roller. Hydraulic cylinders actuate a pivotally mounted rear hopper such that it may be hydraulically tilted to dump its load from the screen on the ground. The trailer ground sweeper carries its own hydraulic fluid tank and its hydraulic system has controls operable from the driver's position on the drawing tractor. A scoop at the front of the sweeper adjacent the lowest portion of the moving screen has a scoop blade which is reversible with respect to the run of the belt, such that the blade may be reversed to maintain a keen edge.

Abstract: A video camera tilt and pan head includes a bifurcated support which is free to pivot about a vertical axis for the "pan" action of the video camera. A camera cradle receives the video camera and the cradle is provided with slots and a tie-down bolt such that the camera is adjustable horizontally with respect to the cradle. The cradle is supported on transverse mounting pivots secured in the support. The pivots clamp in vertical cradle slots, enabling the cradle to be adjustable vertically with respect to the pivots. The pivots may be tubular to act as sight tubes to locate the cradle and camera with respect to the desired pivot axes. A tray extends from the cradle to receive weights to counterbalance the extension of the video camera beyond the transverse pivots. The camera exterior is indexed to indicate the point at which the axes of each of the red, green and blue receptors intersect the lens axis of the camera. This point establishes the desired path for tilt and pan axes.

Abstract: Two paddle striking surfaces or panels are spaced an interval sufficient to receive a player's hand between the panels. The panels which define striking surfaces are similar in configuration one to another. Separable central posts secure the paddle panels in spaced relationship and afford a grip whereby the paddle striking surfaces may be grasped and manipulated by a player's hand. The surfaces mask the greater part, or all, of the palm and back of the hand. The striking panels may be integrally formed or may be selectively separable elements. preferably the attitude of the striking panels with respect to one another is such that they are substantially parallel when the paddle is in use on the player's hand. Various straps may be used on the paddles to afford a secondary link between the player's hand and the striking panels, such that the movement of the hand results in immediate like movement of the two panels without changing the panel relationship one to another, when used together.

Abstract: A box blank with receptacle and cover sections each with side and end-flaps has a hinge panel joining the sections. A vacuum pickup draws a flat blank from a stack to a feed carriage which delivers the glue coated blank to a former and a forming head having concave and convex interacting pressure plates which maintain doubled over end flaps of each section in concave configuration while the folded end sections are adhered to form a box tray. Former flap benders cooperate with the tray forming head to shape the tray. A second vacuum pickup clasps the formed tray at the hinge panel and draws it from the forming head into engagement with folding elements such that cover and receptacle sections are bent together along the hinge panel to form a closed box.The machine implementing the process is cam and lever motivated with a gluer for forming the folded end flaps and holding the box partially closed after the tray is formed for loading articles into the box before it is closed.

Abstract: The process utilizes a conventional golf practice driving range with added greens with flags for approach shots, the conventional practice putting greens and a computer with a viewing screen. The computer is programmable, as by a cassette tape, to show in sequence layout and data on each of the eighteen holes of a selected classical golf course. The actual drives and approach shots are "played" on the practice driving range and are added to the computer information on the screen to show ball placement on the screened course. A golfer can play realistically any of the great courses of the world and measure his game against the par for those courses by the process, completing putting out for final score on adjacent practice greens. A putting phase for each hole is preferably done after the drive and approach shots are made for all eighteen holes, or each nine holes, but may be done on the practice green after the drive and approach shots for each hole.

Abstract: A multi-level building has a plurality of service bays each having upper and lower work floors both surrounded by walls. The upper work floor has a floor aperture with roller mounted horizontal gates to open and close the aperture. The gates are capable of supporting lift jacks and taking the weight of the motor vehicle. The upper work surface received the motor vehicle. A moveable door in one end wall of the bay precludes unauthorized removal of the motor vehicle. Tanks remote from the work surfaces are connected to fluid collectors operable from the lower work surface. Upper and lower access drives are connected by ramps for the entry and exit of vehicles and the delivery of supplies and removal of waste. Other doors and gates deny unauthorized access to the work surfaces. The bays may be arranged in side-by-side or tandem relationship with access ways between tandem bays such that a vehicle may move from one bay to another or be removed from the structure without passing through the second bay.

Abstract: A pair of roller and track suspended glass doors is assembled with a tub or shower enclosure without drilling or piercing the door panels. Compression clamps depending from the rollers grip the upper edge of each panel. Adhesive pads support combined handles and towel bars on obverse and reverse side of alternate panels. A central bottom guide track is snapped into and adhesively secured to the bottom frame member. The bottom frame member includes a upright outside flange with an inwardly extending rubbing bar to preclude outer panel abrasion. End guides for the inner door panel are fixed to upright side members of the frame. The upright members support the frame header which contains the top track for the rollers and may be contoured to accept a trim panel on the outer face thereof.

Abstract: A reciprocating piston machine useful as a pump, a hydraulic motor or an internal combustion engine has a plurality of cylinders in a carrier surrounding a central shaft. The carrier is in turn surrounded by a ported manifold. The carrier and manifold are adapted for relative rotation one to another such that the cylinders periodically open to the ported manifold. Pistons within the cylinders each describe a path in the carrier tangent to a circle in the plane of rotation of the carrier. A gear fixed to the manifold housing about the central shaft induces relative motion between the manifold and the carrier by linkage including gears and shafts and connecting rods of the pistons.In the motor and pump mode, the machine is valveless, and in the engine mode a single valve per cylinder completes the valving functions necessary for an internal combustion engine. A valving cam fixed to the manifold housing biases valving lever arms as relative motion between the manifold housing and the carrier is accomplished.

Abstract: An automatic sprayer comprising a spray body, a prime mover mounted to the spray body, a geared eccentric drive operatively associated with the prime mover, a nozzle body to be driven into oscillating motion by means of the a geared eccentric drive, whereby treatment liquid contained in a container is sprayed by oscillating motion of the nozzle body. Spraying may be carried out upon oscillating motion of the nozzle body, thus resulting in efficient dispersion of liquid.