Abstract: A well slip assembly including a support structure adapted to be placed on a well drilling rotary table and to turn therewith, a vertically movable slip suspending carrier structure, latch means for releasably retaining the carrier structure and slips in a lower active position relative to the support structure, and yielding means urging the carrier structure upwardly to a retracted position. The support structure is desirably formed separately from a slip bowl structure positionable in the rotary table. The carrier structure may be urged upwardly by fluid pressure type spring means, such as air springs, with an accumulator chamber for the pressure fluid system preferably being contained in or carried by the vertically movable slip carrier structure.

Abstract: An inert calcium deposit located beneath the surface of the skin is reduced by application to the outside of the skin of a composition comprising dimethyl sulfoxide and papain, the enzyme found in papaya. The dimethyl sulfoxide transports the enzyme through the skin toward the location of the inert calcium, minutely dissolves the inert calcium and through the natural body circulatory processes removes the liquified calcium from the area and purges it from the body.The dimethyl sulfoxide penetrates the body without disturbing normal body functions and the natural herbal enzyme papain then performs the function of dissolving inert calcium.

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 pistol grip including a grip body of elastomeric material to be connected to the frame of a pistol and containing a recess within which a terminal portion of the frame extends downwardly, with the elastomeric material containing a cushioning recess which is located behind the first mentioned recess and gives to the grip body greater compressability in a front to rear direction to increase its absorption of recoil force upon firing of the gun.

Abstract: A portable abrading tool having a shoe plate mounted to the underside of a portable body for powered reciprocation, and retained by tracks projecting downwardly from the body and extending inwardly beneath the shoe, with a wear plate being carried above the shoe for engagement with downwardly facing bearing means at the underside of the body. The wear plate desirably has relatively wide end portions engageable with front and rear pairs of bearings, and a reduced width intermediate portion received between toothed racks on the shoe.

Abstract: Apparatus for preventing injury to fielders, including control means to be actuated by a coach or other person or persons, and separate fielder units to be carried by different fielders and adapted to receive radio signals from the control means and produce signals which can be sensed by the fielder to indicate to him which of the fielders is nearer to the ball and should field it.

Abstract: A slip assembly for supporting well pipe in a rotary table and including a slip bowl structure to be received and supported within the rotary table in a relation to turn with it, a carrier structure supporting a plurality of slips and mounted for upward and downward movement relative to the slip bowl structure and with the slips, latch means for releasably retaining the carrier structure and slips in a lower active pipe gripping position, and yielding means urging the carrier structure and slips upwardly to retracted positions when the latch means are released.

Abstract: A skateboard having two pairs of large wheels supporting a board on which a user stands, with the board having a low central deck surface between the two pairs of wheels and raised front and rear portion above the wheels with upper surfaces higher than the central deck surface. Trucks are connected to the underside of the front and rear portions and project downwardly to mount the two pairs of wheels for swinging movement generally about two oppositely inclined axes. A handle post is detachably connectable to the board in either upwardly projecting or rearwardly projecting positions, and additional handles are mounted to the board for swinging movement between active and retracted positions. A brake mechanism is actuable by a manually operated unit through a flexible operating shaft assembly, and may be either held movably in a user's hand or connected to the board, desirably through one of the handles.

Abstract: Information is conducted upwardly from a location deep within a well by a transmitter which is located in the well and induces electrical currents in the surrounding earth formation. These currents are sensed at an upper location by readout equipment connected to two electrodes which are in electrical contact with the earth at spaced locations. One of the electrodes is at a subsurface location and is connected to the readout equipment by an insulated conductor. In offshore drilling situations, the specified subsurface electrode is at the very least located beneath the surface of the ocean or other body of water through which the well extends, and in most instances is preferably embedded within the earth formation under that body of water, and at a location spaced beneath the seabed.

Abstract: An adapter for attaching a radiator cooling fan to a water pump of an internal combustion engine, the adapter having spaced rear and front walls for attachment to the water pump and fan respectively with recesses extending radially into the body of the adapter between these walls for reception of a wrench used in securing the rear wall to the pump, and with these recesses being separated by radial projections securing the front and rear walls together, and with additional openings being provided in the front wall for passing a wrench rearwardly through that wall when necessary.

Abstract: An oscillator for producing an output whose frequency varies in correspondence with changes in the level of an input voltage, and which includes a base or clock oscillator operating at a fixed frequency, a counter operable to count a predetermined number of oscillations of said base oscillator to thereby measure a base time period, a ramp generator controlled by the input voltage signal and acting to produce a voltage ramp continuing for a period whose duration varies in accordance with variations in the level of the voltage signal, and means for producing an oscillating output signal having a period which includes a combination of the base period as determined by the counter and the variable period measured by the ramp generator.

Abstract: An earthquake responsive valve having a lever structure which is mounted to swing about an axis and has two arms projecting in different directions and carrying two weights respectively balanced against one another in a relation such that one of the weights normally overbalances the other and retains the valve in open position but is displaceable by earthquake forces to an inactive position releasing the lever structure for valve closing movement.

Abstract: A gun having a pistol type handle with a trigger at the front of the handle and a grip safety at the back of the handle mounted for limited pivotal movement and acting to prevent actuation of the trigger except when the grip safety is squeezed forwardly, and with the back surface of the grip safety being formed as a layer of cushioning material for contacting the user's hand.

Abstract: A safety wheel for trucks or other motor vehicles, including a safety flange which is detachably connectable to the tire mounting rim of a wheel body, with the flange having a mounting portion preferably received radially between the rim and a bead of the tire, and with the flange extending generally radially outwardly at the outside of the tire to a peripheral edge which is of a diameter slightly less than the external diameter of the tire to normally be out of engagement with the road surface, but to contact that road surface and effectively support the vehicle in the event of deflation of the tire. The safety flange is desirably retained on the rim by a resilient split retaining ring removably received within an annular groove formed in the wheel body, and with further retention of the safety flange by a series of circularly spaced screws extending outwardly through the wheel body and connecting to the safety flange.

Abstract: An inclination responsive device including a coil energized to produce a magnetic field extending along a normally vertical axis of the device, and a flux gate assembly adapted to respond to a horizontal component of that field upon tilting movement of the axis to an inclined non-vertical position, and to thereby produce an output which varies in response to changes in inclination. The flux gate assembly is desirably also responsive to the earth's magnetic field or another ambient field to also produce an output representing directional orientation of the device with respect to the ambient field.

Abstract: A cord lock including a body containing a passage within which there is received a locking slide adapted to wedge a pair of cords against opposite side walls of the passage, with the slide having a main locking portion with a pair of toothed faces engageable with the cords respectively, and resiliently flexible feeler arms projecting from the slide and engageable with the cords in both the locked and released positions of the slide to attain a self locking action automatically actuating the slide to its locking position upon predetermined movement of the cords, and retaining the slide in locked position until purposely released therefrom. The side walls of the passage and the body desirably have converging portions laterally opposite and coacting with the main locking portion of the slide, and non-converging portions laterally opposite and coacting with the resilient feeler arms.

Abstract: A safety wheel for a truck or other motor vehicle, having a safety flange which is attached to a wheel body at essentially the location of its tire mounting rim, with the safety flange desirably being located at the axially inner side of the tire and projecting generally radially outwardly to a peripheral edge which is of a diameter sligthly less than the inflated diameter of the tire and is adapted upon deflation of the tire to engage the road surface and support the vehicle therefrom.