Abstract: The invention relates to a golf driving mat comprising a plurality of framed panel members assembled in edge-to-edge abutting relationship, the panel members and inner perimeter of the surrounding frame having releasable engagement means formed on the edges thereof for interlocking engagement of adjacent panel members and the inner perimeter of the frame, thereby permitting removal and replacement of panel members demonstrating wear.

Abstract: Skeletal railing systems are usually formed of metal tubing welded together and/or interconnected by metal T-connectors, cross connectors and elbows. The assembling of such railing systems is often time consuming and expensive. A simple alternative includes tubular plastic, preferably polyvinyl chloride posts and rails interconnected by short lengths of metal tubing which extend through openings in the plastic tubes. A bolt perpendicular to one section of metal tubing extends into a plate or plug on the end of the other section of metal tubing, and a nut is tightened onto the bolt to hold the sections together.

Abstract: A device for maintaining docks or other floating bodies at a given distance from and orientation to the shore by means of a ratchet assembly hinged on the side of the dock closest to shore, and a line attached to two guides, such as pulleys, on the underside of the dock. When the level of the water varies, the device maintains the dock at the same distance from the new waterline as it was from the old, in the following manner: the line is anchored at one end on shore and at the other to a bottom anchor beyond the farthest point the dock will extend to at lowest water level. Tension in the line pushes the dock towards the shore until the ratchet contacts the bottom, where equilibrium is established. If the water falls, the ratchet pushes the dock away from shore and a new equilibrium is established, farther out; this repeats as long as the water falls. If the level rises, the ratchet is raised off the bottom and the dock moves towards shore to a new equilibrium point. This continues as long as the water rises.

Abstract: In general, round bale carriers are somewhat bulky and expensive devices suitable for use only on larger farms. A relatively simple carrier for attachment to a baler includes a rectangular, rear wheel carried main frame for articulated connection to a baler using a small auxiliary frame, the main frame sloping rearwardly in use to a pair of pivotable V-shaped arms which normally maintain the bale on the main frame. When the carrier reaches a desired location, e.g. a windrow, the arms are rotated by actuating a hydraulic cylinder to dump the bale.

Abstract: A manually operable water well pump includes a baseplate with a casing thereon, a rocker arm pivotally mounted in the casing for reciprocating movement therein, a chain on one end of the rocker arm outside the casing for reciprocating vertical movement with the rocker arm, a connector on the free end of the chain for connecting the latter to a pump rod, whereby the rod can be reciprocated in a well casing, the transmission in the casing including a pair of gears interconnected by an endless chain, a crank for rotating the smaller of the gears and a linkage between the larger of the gears and the other end of the rocker arm for reciprocating the latter, and a tank suspended from the baseplate concentric with the pump rod for mounting on a well casing to receive and discharge water from the well.

Abstract: A portable crane includes a bracket mounted on a shaft extending upwardly from bearings on the vehicle; a boom extending outwardly from the bracket, a spool rotatable in the bracket carrying a cable, which extends outwardly around a pulley, a hook on the outer end of the cable for supporting a load, and a pair of slack adjusters, one of which receives the shaft for rotating the latter and consequently the boom between use and transport positions, the other slack adjuster engaging the spool for rotating the latter to wind the cable thereon.

Abstract: Two versions of an improved device for preventing unauthorized access to computer, video, and audio and like disk and cassette drives are described. Drives with an existing external latch that prevents insertion or removal of the disk, such as standard 51/4 disk drives, are secured by means of an inserted plate which captures the latch in the closed position, combined with an external locking assembly which prevents movement of the inserted plate. Drives and players with an internal mechanism that moves the disk or cassette to a play position, for example 31/2 disk drives, are secured by means of inserting a modified disk or cassette that has an attached plate that extends outside the drive when the disk or cassette is in playing position. A locking assembly with a plate to jamb the modified disk or cassette in position is locked to the extending position.

Abstract: In general, confinement systems of barriers for use around oil or other storage tanks are expensive and/or difficult to install. A relatively simple protective barrier includes corrugated panels connected end-to-end to define an enclosure, a bar or cap mounted on the panels, a plurality of threaded rods for extending through the cap into the ground, an anchor for mounting on the bottom end of each rod, whereby, when the rod is pulled upwardly, the anchor engages the ground to hold the rod firmly in position, and a nut for mounting on each rod above the bar which can be tightened to push the bar and consequently the panels downwardly into the ground.

Abstract: A wall plug for use with a split circuit duplex wall outlet, including an indicator light to identify the split circuit and including switch means for selectively operating the wall plug on one or both of these two household circuits available at a standard outlet.

Abstract: A relatively simple device for turning a mirror on a truck or other automotive vehicle includes a pivot for rotatably supporting one end of the mirror, and a casing on the other end of the mirror. The casing contains a reversible motor and gearbox combination for rotating a threaded shaft, which carries a threaded block. Rotation of the shaft causes movement of the block to rotate an arm connected to the other end of the mirror. A pair of microswitches located in the path of travel of the block limit movement of the block and consequently rotation of the mirror beyond predetermined limits.

Abstract: The replacing of a shoe on a horse involves a plurality of separate tools, each performing a different function. Such tools have not changed substantially in decades. A relatively simple substitute for these tools includes a pair of arms for pivotal interconnection scissors-fashion, a first of the arms having a head including a hammer, one half of a shoe of nail gripping jaw and a slot for use when removing nails, and the second arm having a head defining the other half of the jaw and an arcuate surface for blocking a nail in a hoof. The other end of the second arm defines a toothed clincher for use in opposition to a toothed portion of this hammer for clinching nails extending from a hoof.

Abstract: A relatively simple pile driver includes a tubular holder with a closed top end and an open bottom end for receiving a pile; a tubular hammer with a closed bottom end and an open top end, the hammer containing lead and being mounted on the holder; four guide rods extending through large plates closing the top end of the holder and the bottom end of the hammer permitting controlled vertical movement of the hammer above the holder, the guide rods extending upwardly to a positioning plate above the hammer; a pair of cables extending upwardly from the plate closing the top end of the holder and through slots in the positioning plate to a bar, which is connected to a crane or other lifting apparatus by another cable for positioning the pile drive; and a pair of hydraulic cylinders extending upwardly from a pair of brackets on the bottom end of the holder, with piston rods extending upwardly from the open top ends of the cylinders to brackets on the hammer above the holder, whereby, the hammer can be raised and, wh