Abstract: A power driven tool for making and breaking threaded connections in a well pipe is movable between a central position of alignment with the well axis, a second position offset from the well axis and above a mousehole, and a third retracted or inactive position offset at a side of the well axis opposite that at which the mousehole is located. The tool preferably includes a carriage which rolls along the rig floor between its different positions, desirably on spaced tracks located at opposite sides of the main axis of the well and the mousehole, with the pipe contacting mechanism being mounted for upward and downward movement relative to the carriage and for pivotal movement to an inclined position for alignment with an inclined mousehole, and preferably including an upper well pipe spinner and a lower torque wrench assembly.

Abstract: A device for turning a section of well pipe to connect it to or disconnect it from a pipe string includes a power unit to be mounted at a side of a well and having a part, preferably a piston, which is power actuable in opposite directions, with that part acting upon movement in one direction to exert a pulling force on a flexible line connected to a tong for turning the pipe section, and with the specified part acting upon movement in the opposite direction to exert pulling force on a second elongated flexible element, preferably a chain, which extends about the pipe section and acts to spin it rotatably when the chain is pulled.

Abstract: A well instrument which includes a probe adapted to be lowered into a well to sense the inclination of the well and the direction of that inclination, for use in steering a drill bit or surveying the well, is provided with mechanism for rotating the probe relative to a body of the tool about an axis extending longitudinally of the well in order to give an indication of and allow compensation for minor inaccuracies or offsets in the readouts produced by the sensing mechanism. The probe is desirably rotated alternately in opposite directions.

Abstract: A transfer is made by a process which includes applying a first adhesive to a base sheet, applying flock fibers to the adhesive for temporary retention thereby on the base sheet, then applying a second layer of adhesive to exposed ends of the flock fibers with the second layer being formed of a composition including an emulsion or solution, preferably an aqueous emulsion, of an adhesive polymer in a carrier liquid together with a large number of minute solid particles of a thermoplastic polymer resin intermixed intimately with the emulsion or solution before application of the composition to the fibers, and with the composition preferably being pressed against the fibers so that upon evaporation of the carrier liquid the second layer remains adhered to the fibers in integrated form with at least some of the particles received between the fibers.

Abstract: A gun having a forend at the underside of the barrel including a body of elastomeric material with outer surfaces deformable to cushion a user's contact therewith and preferably containing a reinforcing material stiffer than the elastomeric material desirably taking the form of a U-shaped reinforcing element which is clamped and retained between a fastener and the barrel of the gun to secure the forend to the barrel.

Abstract: A pipe section is added to a drill string while an instrument and a flexible line leading to the instrument remain in the string. The effective length of the flexible line is increased in corresponding with the increase in length of the drill string by connection of the flexible line to a carrier by which the line is carried in a coiled condition occupying a distance longitudinally of the drill string shorter than the actual length of the line. The carrier is constructed to pay out the different turns of the coiled line successively from coiled condition to a straightened condition in a manner progressively increasing the effective length of the line. Preferably, the line is paid out from the carrier by pulling the carrier toward the outer end of the drill string while an inner end of the line is connected to the instrument in the string.

Abstract: An internal elevator to be received within and internally grip and support a tubular member such as a well platform supporting pile, and including slips preferably mounted within openings in an outer body and actuable radially outwardly into gripping engagement with the tubular member by powered axial movement of an inner camming body. The elevator is desirably suspended in horizontal position by a hanger in a manner enabling the elevator to be stabbed into an end of a horizontal tubular pile or member, with the elevator having additional connector means attachable to a suspending line in a relation then swinging the elevator and pile to vertical positions. In one form of the invention, the elevator may be formed as part of an elongated structure adapted to be lowered through vertically spaced pile guides, with the elongated structure acting to bridge the space between the guides and thereby assure proper alignment of the elevator with the guides and with a pile centered with respect thereto.

Abstract: A device adapted to respond to a mechanical shock as in an earthquake or the like, and including a first movable element to be controlled, a second element which normally blocks movement of the first element but is displaceable by shock-induced movement of a weight to permit movement of the first element, together with resetting mechanism operable to move the first element back toward its initial position and operable also to deflect the second element laterally back to an active position again blocking movement of the first element from its normal setting. The weight is preferably supported by a universal connection including a ball and socket joint in which the ball has an upper truncated portion defining a surface engageable with a movable part in a manner shifting that part axially in response to shock-induced pivotal movement of the weight structure.

Abstract: A pressure sensitive adhesive is formed from a composition comprising mono-functional unsaturated acrylate ester monomer, essentially saturated tackifying resin polymer dissolved in the acrylate ester, non-crystallizing elastomeric material also dissolved in the acrylate ester, and an initiator responsive to ultraviolet light or other penetrating radiation such as electron beam, gamma or X-ray radiation. The composition is cured by subjection to ultraviolet light or other radiation, which causes the initiator to induce polymerization of both the acrylate ester and the non-crystallizing elastomeric material, apparently with co-polymerization therebetween.

Abstract: A device for locking one or more cords or other flexible elements against longitudinal movement, and including two members interconnected for relative pivotal movement between locking and released positions, with one of the members having a portion which is slightly laterally deflectible upon assembly of the device to permit movement of a pivot lug into a pivot recess to form the pivotal connection between the members, and with the other member having an interlocking projection which in the locking relative position of the members blocks lateral movement of the deflectible portion of the first member to prevent disassembly of the parts in that locking position.

Abstract: A tennis racquet having a stringing pattern in which there are fewer transverse than longitudinal strings, and with the longitudinal strings being interwoven with the transverse strings and preferably being arranged in spaced pairs. The longitudinal strings may be retained against lateral displacement by transverse connectors, which in one form of the invention are cords tied by figure 8 knots to the longitudinal strings, and in another form of the invention may be elongated integrally molded elements containing preformed apertures for receiving and locating the longitudinal strings.

Abstract: A vacuum cleaner having a rotor which is mounted to turn at the inside of a filter bag of the device, and which acts when turned to contact the bag and displace accumulated dust from its outer surface. The rotor may be actuable from the outside of the cleaner when a cover of the cleaner is in closed active condition. The rotor desirably includes one or more resiliently flexible arms which are deflectable to a reduced diameter condition by the bag when the bag is constricted inwardly against and about the rotor by the flow of suction air when the device is in use.

Abstract: A cord lock having a body containing a plunger which can be pressed inwardly relative to the body against the resistance of an actuating spring, with the body and plunger having apertures through which a cord or cords can extend and which have edges acting to grip the cords when the plunger is in a predetermined locking position. The apertures are desirably of oblong sectional shape, and the gripping edges of the plunger and body are preferably sharpened in a relation assuring effective clamping of the cord.

Abstract: A pistol grip preferably including a cushioning part having a rear portion extending across the back of a pistol handle and having side portions projecting forwardly from said rear portion at opposite sides of the handle, with the part desirably including a body of elastomeric material containing a reinforcing structure stiffer than the elastomeric material and of generally U-shaped horizontal sectional configuration. The cushioning part may be retained on the pistol handle by a fastener or fasteners extending forwardly through apertures in the back of the cushioning part and connectable to the pistol handle.

Abstract: A water filter including a cup into which water may be filled, and a replaceable filter cartridge removably receivable within the lower portion of the cup, with the cartridge including a hollow body having top and bottom openings across which first and second sheets of filter material extend, and with a mass of activated carbon being contained within a chamber in the body of the replaceable cartridge and confined between the two sheets of filter material.

Abstract: A ventilated hat or cap having an adjusting band which is preferably formed as a moisture absorbent sweat band, and which extends along the inside of the primary band structure of the hat, in spaced relation thereto to allow circulation of air upwardly and downwardly through a gap between the two bands, and with at least one and preferably both of the ends of the adjusting band being connected to the primary band structure for relative longitudinal adjusting movement in a relation varying the effective size of the hat or cap.

Abstract: A magnetic water treating device including a housing part containing a permanent magnet assembly with pole pieces positioned to contact the outside of a conduit, and having a flux return plate within the housing part at an outer side of the magnet assembly and spaced therefrom by a nonmagnetic part. A pair of end plates at opposite ends of the magnet assembly desirably extend through openings in the nonmagnetic part into engagement with the flux return plate. Projections on the nonmagnetic part extend inwardly for locating the elements of the magnet assembly, and connector posts projecting from the nonmagnetic part may extend through apertures in a second nonmagnetic part at the inner side of the magnet assembly to secure these parts together. The flux return plate may be retainable in the housing by reception of an edge portion thereof behind a locating shoulder. A second housing part may carry a resilient structure for exerting yielding force against an opposite side of the conduit.

Abstract: An apparatus and method for treating fresh water by producing a magnetic field in proximity to a flow of such water within a water conduit having an electrically conductive portion connected electrically to earth. The magnetic field has north and south poles spaced apart in the direction of water flow, with its overall effective south magnetic polarity located upstream of its overall effective north magnetic polarity.

Abstract: An apparatus for treating fresh water by producing a magnetic field in proximity to a flow of such water within a water conduit having an electrically conductive portion connected electrically to earth. The magnetic field has north and south poles spaced apart in the direction of water flow, with its overall effective south magnetic polarity located upstream of its overall effective north magnetic polarity.