Abstract: The staple is in the form of an integral metal wire bent into a V-shape, the vertex of the V in turn being bent at 90.degree. to form a first punching element. The diverging ends of the arms of the V-shape in turn are bent downwardly 90.degree. to form second and third punching elements. The staple can be used to fasten two members with one of the punching elements being received in one member and the remaining two punching elements being received in the other, the general V-shape of the staple providing stability at the stapled joints of the members.

Abstract: A tether line is connected between a surfboard and an ankle cuff about a surfer's ankle so that the surfer will not lose the surfboard if he becomes separated from the board. A quick release is provided between the one end of the tether line and the ankle cuff permitting the surfer to manually release the tether line from the ankle cuff in an emergency situation. The quick release includes a yoke member to which the tether line is secured arranged to straddle an opening in the ankle cuff. A pin passes through the arms of the fork and the opening in the cuff and by simply manually removing the pin, the quick release results.

Abstract: An accessory device is provided for securement to a conventional portable type chainsaw to define a fixed predetermined distance of the cutting plane of the saw from an end of a work to be cut. With this arrangement, successive cuts of identical lengths can be rapidly made. The accessory itself comprises a plurality of straight cylindrical tubes nested in telescoping relationship and with appropriate frictional engagement with each other. With this arrangement, any desired length can be defined by the extent of telescoping of the tubes and the defined lengths remain fixed as a consequence of the friction between the tubes. This fixed length can thus be used for successively measuring off equal cuts of a log or other wood to be cut by the chainsaw and the operator need not be concerned with further adjustments until such time as the successive cuts are to be changed in length.

Abstract: The safe door comprises a circular body with a recess formed in one face defining a cylindrical wall. This wall has radial bores passing therethrough for guiding locking bolts received in the bores between extended locked positions and retracted open positions. A cam plate is positioned in the recess and includes peripheral cam slots coupled to the inner ends of the bolts. The arrangement is such that rotation of the cam plate between first and second positions will retract and extend the bolts simultaneously. Features of the invention include providing a central opening in the cam plate with notches so that the same can be driven between its first and second rotated positions by a cam plate driver centrally located which driver in turn supports the combination lock components.

Abstract: The water powered motor includes a casing housing a rotor shaft. First and second water bearings of conical shape support opposite end portions of the shaft for high speed rotation. The central portion of the shaft has turbine wheels subject to high velocity water flow through the casing. The same high water pressure for driving the turbine also provides water to the water bearings to "float" the rotor shaft so that very high speeds can be attained with minimum friction. The preferred application for the motor is that of a high speed drill for drilling printed circuit boards. However, it may be miniaturized for use as a dentist's drill.

Abstract: A pipe clamp useful for connecting two pipes together comprises a hollow ring or hollow toroid structure so designed that squeezing of opposite sides of the toroid deforms the hollow interior in such a manner as to contract the central opening of the toroid. Where the toroid is positioned around a pipe, the circumferential contraction of the central opening upon squeezing permanently secures the ring or clamp to the pipe. Where the ring surrounds telescoped pipe ends, the circumferential contraction of the toroid permanently secures the telescoped pipe ends together by radially inwardly deforming circumferences of the overlapped pipe ends.

Abstract: The dewaxing valve comprises a ball and valve seat where the ball is on the upstream side of the flow of hot dewaxing fluid through a production pipe string to the well annulus. The design of the dewaxing valve is such that it can be readily attached to a production tube in the production tubing string by simply boring a hole in the side of the production tube and welding a supporting T-collar for the valve to the periphery of the side opening.

Abstract: A hydraulic valve normally mounted at a convenient level for manual operation on a machine can be operated by a person's foot as opposed to his hand. Towards this end, there are provided mounting means for mounting the valve in an upside down position at the same level together with an elongated tube extending from the normally existing manually operable portion of the valve vertically downwardly terminating short of the floor. A transverse foot pedal is pivoted to the machine frame at the level of the lower end of the tube, this lower end in turn being pivoted to the same foot pedal at a point spaced from the first pivoting point. The arrangement is such that rocking movement of the foot pedal will actuate the valve in the same manner as manual actuation when the valve was upright.

Abstract: A vibrator utilizing a disposable bite probe subject to vibrations of the vibrator is used to seat crowns, bridges and the like. After cement has been applied to the underside of the crown and the prepared tooth surface and the crown initially positioned, the bite probe is received between the crown and opposing teeth in the patient's mouth or dentist's finger in the absence of opposing teeth, the patient or dentist applying pressure on the bite probe. When the vibrator is energized, the vibrations express excess cement working the crown down into a proper and secure position on the patient's tooth. Continued pressure on the bite probe by the patient and/or dentist holds the bite probe in position, the vibrator itself being disconnected from the probe and the probe itself being retained in a stationary position for a sufficient length of time to assure proper seating of the crown as the cement hardens.

Abstract: The splice boot comprises retention means for holding an exit end portion of the boot to a connector block. The retention means take the form of integrally formed parallel rib segments on the exterior of the exit end of the splice boot such that part of a connector block abuts against the rear ends of the ribs to secure the boot to the connector block.

Abstract: An example of the shock resistant transparent polymer sphere is a billiard or pool ball. The molding apparatus includes lower and upper mold halves defining juxtaposed concave hemispherical surfaces to define a spherical mold cavity with a top fill opening on the upper mold half. Interlocking of the mold halves together is accomplished by tongue and window structures circumferentially spaced about the meeting points of the two halves at 120.degree.. A holder in the form of an annular ring is provided for supporting a central disc provided with a symbol on each of its opposite faces. The design is such that the ring when positioned in the spherical cavity defined by the mold halves supports the disc with its center coincident with the center of the spherical cavity. The molded sphere is made by a single pouring operation of resin through the fill opening, the disc and ring being encapsulated within the sphere.

Abstract: The tool includes a straight elongated bar having a flat top surface to which are pivoted first and second narrow bar segments. The bar segments are arranged to swing about their pivots between closed positions in which the segments overlie the bar to open positions in which the segments run transverse to the bars at right angles. The distance between the segments is made exactly equal to the desired distance between the framing studs so that the tool can be positioned alongside a baseboard to which the framing studs are to be attached and appropriate pencil marks made using the segments as ruler edges. The tool is designed to accommodate four bar segments uniformly spaced in accord with the desired stud spacing so that four stud position markings can be effected with a single application of the tool. Also, the tool is designed for easy disassembly to permit compact storage.

Abstract: A rubber material is molded into an enclosure of ungulate shape for engaging about and under a horse's hoof. The upper perimeter of the enclosure defines a rim, there being provided a generally horizontally forwardly extending lip across the rear portion of this rim. A flexible belt of textile material is arranged to pass through appropriate openings about the exterior of the enclosure immediately below the rim, the forward end portions of the belt being drawn together by a buckle to circumferentially contract the enclosure about the horse's hoof. The rear horizontally extending lip engages over the heel of the hoof to assure that the enclosure will stay in position.