Abstract: Lift for an aircraft is provided by forming a longitudinal lifting duct therethrough, said lifting duct having a substantially planar roof and a longitudinally cambered floor. When the aircraft is driven forwardly, a stream of air enters and passes through the lifting duct and the contouring of the floor of the lifting duct give rise to a pressure gradient in the air stream which result in a higher pressure on the roof of the lifting duct than on the floor thereof so that the pressure difference provides lift for the aircraft.

Abstract: An apparatus for loading and unloading a cable spooling reel or drum onto a support frame structure for facilitating the use of the cable in a well bore drilling, servicing, or producing operation, or the like, the apparatus including a pivotal ramp for guiding the drum onto and off of the frame structure, a pair of winches engagable with the opposite end of the spool or reel shaft for moving the drum over the ramp and onto the frame structure and for unloading the drum from the frame structure, and a traverse mechanism for facilitating the winding and unwinding of the cable with respect to the core of the cable spooling drum.

Abstract: In an improved multikey keyboard for inputting data into a computer, wherein pressing a key places in circuit the point of intersection of at least one row conductor and column conductor respectively connected to portions of separate sets of row and column cascaded electrical elements whose cumulative values correspond to the specific row and column of the pressed key, the specific improvement comprising: providing the keyboard with an input signal source circuit and an output sensor circuit operatively connected to each key such that the computer upon receipt of a signal on the sensor circuit representing the pressing of a key, can make the necessary measurements to establish the identity of the pressed key.

Abstract: A multiple biscuit clutch or brake apparatus comprising an annular disc operably secured to a rotatable shaft and having a plurality of circumferentially spaced bores provided therein, a pair of complementary pistons slidably disposed in each bore in back-to-back relation and responsive to the application and withdrawal of pressure therebetween for reciprocation within the bore, an annular flange disposed on each side of the disc and outboard of the pistons for frictional engagement thereby upon axially outward movement of the pistons within the respective bores, the frictional engagement between the pistons and the flanges providing either a braking or clutching operation, and a housing encasing the disc and flanges to provide a chamber therearound, the housing being provided with inlet and outlet ports whereby a coolant may be introduced into the chamber and circulated around the disc and pistons and flanges for dissipating the heat generated by the frictional engagement of the pistons and flanges, the cool

Abstract: An apparatus for controlling the flow of liquid from a conduit into a tank to maintain a selected level, which is an improvement on the conventional type of float-operated flow valves which use a diaphragm clamped between two flanges and positioned over the end of the conduit through which liquid is supplied at a selected pressure. There is a small opening in the center of the diaphragm and there is a second small opening in the second flange of the flow means. The improvement of this invention, is the use, instead of a float mechanism, a pressure-sensitive diaphragm which is responsive to the hydrostatic pressure in the liquid at the level of immersion of the diaphragm. The diaphragm is adapted to close and open the second small opening, and thus to control the flow through the first valve.

Abstract: An improved switch apparatus for monitor presence of the patient in a hospital or nursing home bed and responsible to distortion by the weight of the patient, the switch being formed of an elongated, thin rectangular base member of insulating, flexible material having an elongated generally rectangular cutout in it, a first and second plastic cover members encompassing the base member, the plastic cover members being sealed around the edges and the plastic cover members having conductive layers affixed to the opposed surfaces on either side of the base member and arranged so that the conductive layers are spaced apart from each other in the area of the cutout and held apart by the memory of the base and plastic covers and a cable having one conductor connected to the conductive layer on one cover member and another conductor connected to the conductive layer on the other cover member, the conductive surfaces contacting each other through the cutout in the base member when the switch apparatus is subject to be

Abstract: A drill scope comprising a calibrated protractor that can be read directly in terms of angle of tilt of the drill bit and a pivoting spirit level support means with tilt angle marker and bull's-eye bubble level that can be pivoted to a selected angle of tilt and then held in that position during use of the drill. In this manner, when the hand held drill is held such that the bubble reads level, the angle of tilt or inclination of the resulting hole can be readily maintained within one degree. The drill scope can be a U-shaped arm with level that swings over the entire drill housing, a circularly curved surface integrally mounted in the drill housing with a sliding element that holds the level or a calibrated protractor disc with radial support arm and level that attaches to the conventional side handle hole of the drill.

Abstract: A tool for use in sampling bottom sediment conditions in oil storage tanks utilizing a thief suspended on a rope. The bottom sediment sample is taken through a thief hatch opening in a tank top adjacent the tank peripheral edge. The tool is an elongated slender member having a U-shaped outer end for receiving the rope, the tool being dimensioned for extension through the tank thief hatch and having an inner end engageable by the user so as to retain the body member generally horizontally within the tank and leave the gauger's hands free so that the thief may be lowered into the tank in areas displaced away from those areas vertically below the thief hatch.

Abstract: Closures for double pipe and hairpin-type heat exchangers that permits opening the tube side of the closure without losing the shell side fluids or seal. A threaded thrust ring is positioned between the shell side flange and the tube side flange and integrally connected with the tube sheet. Each connection bolt through the flange has a shoulder or threads interconnecting with the thrust ring for applying a force to maintain the seal between the shell side flange and the tube sheet.

Abstract: A pizza pan having a substantially flat bottom surface surrounded by an arcuate or concave peripheral wall which terminates, at its outer edge, in a tubular element surrounding the entire outer periphery of the pan. A plurality of relatively small apertures are provided on the bottom of the pan and are selectively spaced thereon to provide a sufficient flow of heat to the central portion of the underside of the crust for an efficient baking thereof. A sufficiently great solid area is provided around the perforated area for supporting the outer edges of the pizza in a manner whereby the transfer of heat thereto is reduced with respect to the heat transfer at the perforate area to assure an even baking of the entire pizza.

Abstract: Apparatus and method for the ultrasonic cleaning of transmissions, such as automotive transmissions and the like, and which comprises a housing or tank for receiving cleaning liquid therein, a turntable mounted within the housing for supporting the transmission within the cleaning liquid, at least one transducer secured to the housing for impressing ultrasonic energy on the cleaning liquid, heating elements secured to the tank for heating of the cleaning liquid, the transmission being rotatable simultaneously with the turntable for passing the entire outer periphery or external surfaces of the transmission across the face of the transducer within specified or selected spacing therebetween whereby the transmission is cleaned both interiorly and exteriorly without the necessity of disassembly and ultimate reassembly of the transmission during the cleaning operation.

Abstract: A support for a hi-fi turntable base or the like and having an open frame member disposed adjacent the upper surface of a base plate member, a fluid filled endless tube member disposed on the upper surface of the base member and within the interior of the frame and preferably arranged in a serpentine configuration to achieve a proper disbursement of the fluid during use of a support apparatus, the outer diameter of the tube being greater than the thickness of the frame whereby the tube projects above the outer limit of the frame for receiving a floating support plate thereon. A centrally disposed post or bolt extends loosely between the base plate and the floating plate for securing the floating plate to the base plate, the floating plate being adapted for receiving the turntable base thereon for isolating the turntable base from vibration caused by walking across the floor or the like, the elements of the turntable support apparatus being constructed from materials having different frequency.

Abstract: A multikey keyboard for inputting data into a computer, whose keys place in circuit the points of intersection of an X rank conductor and Y rank conductor matrix, characterized in that X rank and Y rank conductors are respectively connected together by interconnection resistors (R) and to an X output and Y output of the keyboard, intended to be connected to two analog inputs of the computer, so that the resistance values applied at the input of these two latter are representatively X rank and of the Y rank of any key pressed.

Abstract: A brake system for a vehicle having an axle supporting a wheel hub including a disc on the axle adjacent the hub, a housing supported by the vehicle in proximity to the disc, the housing having an opening therein which is perpendicular the disc planar surfaces, a pad support slideably and non-rotatably received in the housing opening, the pad support having a pad on the outer end and on the inner end having a surface defined by two intersecting planes, an actuator rotatably supported within the housing having a forward surface defined by two intersecting planes, the forward surface engaging the pad support forward end, the actuator upon rotation causing the angled inter-relationship of the pad support forward face with the actuator rearward face serving to axially displace the pad support, and bolts extending beyond the disc supporting a pad on the opposite side of the disc, the bolts being connected to the housing so that as the actuator is rotated force is applied to the pads against the opposed surfaces of

Abstract: A combination corrosion and scale inhibitor composition comprising the reaction product of a heterocyclic nitrogen containing compound (e.g., mixtures of alkyl substituted pyridines) and aldehyde (e.g., formaldehyde) and a phosphoric acid constituent (e.g., phosphoric acid or phosphonic acid). Such compositions exhibit, simultaneously, inhibition to oxidation corrosion (rusting of carbon steel); suppression of sulfide corrosion (H.sub.2 S in NaCl brine) and the prevention of mineral scaling (CaCO.sub.3 and CaSO.sub.4 scale precipitation).

Abstract: This invention is concerned with downhole measurements while drilling a borehole in the earth with a drill bit at the lower end of the drill string and transmitting such measurements to the surface. The drilling fluid is forced through a fluid passage which includes a drill string, a bit at the lower end thereof and the annulus surrounding the drill string. There is a restriction in the passage causing a pressure drop creating a high pressure zone and a low pressure zone within said passage, and a drilling fluid bypass comprising a bypass valve provides fluid communication between the high pressure zone and the low pressure zone. By means of a downhole sensor and associated equipment a plurality of pulse or electrical voltage change signals representing downhole information is produced. Each of these signals is arranged to generate several electrical voltage changes.

Abstract: A trunnion assembly to interconnect the shank of a hook to a block, like a pulley block, includes trunnion pins that are assembled through the inner bore of a trunnion body and moved outward to extend from the bore into depending side plates of the block assembly and thus rotatably support the trunnion body and lock the pins in place.

Abstract: A golf ball heater comprising a sectional housing which may be readily separated for access to the interior of the housing and secured together to provide a closed housing for receiving a plurality of golf balls therein. A hand warmer such as that known as HOT MINI is disposed within the housing, and the housing is provided with ports providing for flow of air to the warmer for activation thereof when it is desirable to heat the golf balls. The warmer may be returned to a storage pack for deactivation during periods of non-use.

Abstract: A well bore casing inserting and drilling method and apparatus comprising the simultaneous drilling and casing setting of an oil and/or gas well bore by supporting a drill bit and actuating motor therefor from the lower end of the well casing whereby the well casing is lowered into the well bore simultaneously with the penetration of the earth by the drill bit assembly, the motor and drill bit being releasably secured within a housing whereby the motor and drill bit may be retrieved through the internal bore of the casing for repair or replacement of the drill bit or other operational components of the apparatus.

Abstract: A liquid level control including a housing for attachment to an opening in a vessel, the housing having an inner chamber with a float extending therefrom, the float responding to changes in liquid level within the vessel, and an outer chamber including a valve for opening and closing an air flow passageway to provide a pneumatic signal in response to the liquid level changes. The housing has a rotatable shaft extending through the wall separating the inner and outer chambers. The valve includes an elastomeric seat which is easily accessable for inspection and is easy to replace.