Abstract: An output control system for a gas turbine, comprising a fuel flow control valve provided in the fuel supply circuit of the gas turbine for continuously regulating the flow rate of the fuel to be supplied to the combustor of the turbine, and a control circuit for operating the valve to enable the gas turbine to produce a constant output speed, the control circuit including a proportional-plus-integral action network for producing a signal variable with the output speed of the gas turbine, load-change detecting means responsive to an abrupt change in the amount of load on the gas turbine for producing a signal representative of such a change, and an integrator output modifier responsive to the signal from the load-change detecting means for modifying the output signal from the integrator in the proportional-plus-integral action network in such a manner that the delay in the response of the integrator to an input signal is eliminated or at least reduced to a minimum.

Abstract: Oxygen vapor at elevated pressures is utilized as the oxidant component of an oxidant-fuel mixture in a fuel burning system for generating combustion gases which are then mixed with ambient gas and exhaust gases for driving a turbine wheel of a gas turbine operating in a burn-cool cycle. The oxygen vapor is provided from liquid oxygen which preferably is vaporized by heat exchange with hot exhaust gases from the turbine. The burn-cool system of turbine operation permits the oxygen vapors to be supplied to the burner of a combustion chamber at high inlet pressures of about 1500 psia, in contrast ot prior art systems which provide low pressure oxygen to a chamber for combustion in automobile or turbine engines.

Abstract: Apparatus for degrading safety fuel of the type containing an antimisting polymer and comprising a cylindrical vaned stator and vaned rotor in radially concentric array, whereby rotation of the rotor will cause safety fuel pumped through the apparatus to be subjected to sufficient shear and local acceleration to be degraded to a state acceptable to engines and their control apparatus.

Abstract: An exchanger has at least one heat exchange matrix, forming a cylindrical ng. In other embodiments, the exchanger is formed of at least two cylindrical rings, which are coaxial with the axis of the turbine. The flows of compressed cold air and of hot exhaust gas are directed into complementary sectors of the rings. The axial sealing devices are rollers, which are parallel to the axis of the matrices and are borned by their surface on the surface of the matrices in order to form the joint. The fluid distribution housing forms a counter current heat exchanger.

Abstract: An improved hydraulic engine for boats and the like is provided which preferably includes a rearwardly facing concave impingement surface, along with nozzle apparatus for directing a stream of pressurized water against the impingement surface in order to move the boat forwardly through the water. An oppositely oriented, concave, flow-directional surface is disposed in partial opposition to the impingement surface for deflecting non-pressurized water against the impingement surface as the boat moves through the water. The below water portion of the engine is housed in an open-ended casing, and can be rectangular or circular configuration.

Abstract: The present invention relates to an arrangement to cool oil used in a hydraulic control system of an automatic transmission for an industrial vehicle. The hydraulic control system includes an operating pressure feed line, a pressure regulator valve to regulate the magnitude of pressure in the operating pressure feed line, feed passage means for feeding oil under pressure from the operating pressure feed line to a hydrokinetic torque converter, exhaust passage means for exhausting the oil from the torque converter, a pressure maintaining valve disposed in the exhaust passage means to maintain the magnitude of pressure within the torque converter to a predetermined level, and a lubricating oil feed line communicating with the exhaust passage means via the pressure maintaining valve and also with a lubricating oil port of the pressure regulator valve via a flow restrictor. The lubricating oil feed lines have two portions which may be subjected to cooling.

Abstract: A slab-type ice maker apparatus wherein a slab of ice is formed on an inclined evaporator plate by the flowing of water over the upper surface of the refrigerated plate. A control is provided for sensing the temperature of the evaporator plate so as to determine when the thickness of the ice slab reaches a minimal preliminary thickness and continuing the ice slab formation for a preselected period of time subsequent to that determination to provide the completed final thickness slab. The thermally responsive sensing structure is mounted to the underside of the evaporator plate for improved sensing operation. The rate of flow of the water is reduced subsequent to the determination of the formation of the minimal thickness slab for improved efficiency in completing the formation of the final slab. Sensing structure is provided for determining the transfer of the ice slab to a slab dividing grid from the refrigerated plate.

Abstract: In a system having a waste heat recovery subsystem utilizing a heat exchanger, such as a refrigeration system having a heat exchanger for extracting and recovering heat energy from the superheated refrigerant by means of a transfer fluid, method and apparatus for control of the heat recovery subsystem. A combination of three interactive control systems is provided for control of the flow of the heat transfer fluid through the heat exchanger. A first heat sensor means determines when the waste heat temperature is sufficiently high, controlling a pump to obtain circulation of the fluid when such temperature exceeds a preselected value. A second heat sensor means monitors the temperature of the heat transfer fluid and stops circulation of the fluid when such temperature exceeds a preselected safe upper limit.

Abstract: A refrigeration system of the type for conditioning the air within an enclosure and is more particularly concerned with a system comprising flow control means for controlling the flow of refrigerant through the system. The system incorporates charge modulating means for regulating the effective circulating charge of the refrigerant under various operating conditions, including high discharge pressure relief flow control means operable at predetermined high pressure to conduct high pressure liquid refrigerant through the charge modulating means.

Abstract: An air conditioning system which reduces energy consumption by disposing of the waste heat to a low temperature heat sink, at the same time recovering useful energy. An auxiliary liquid cooled condenser is connected in parallel with the air condenser of a conventional vapor compression air conditioning system through a valve located between the compressor of the existing system and the condensers. When the valve is actuated the refrigerant of the air conditioning system is routed from the air condenser and instead flows through the liquid cooled condenser assembly in heat exchange relationship with a body of fluid which is at a lower temperature than the ambient air, such as water from a swimming pool or from a municipal water supply. The valve also serves to exhaust refrigerant from the unused condenser. Maximum energy conservation is achieved by use of the total heat content of the refrigerant rather than only the high-temperature heat as in those prior art systems designed as a principal heat source.

Abstract: A constant temperature box comprises a body and a lid for closing the body at an upper opening thereof, which are of adiabatic construction, and a container which is made flat and small in height and supported horizontally at the upper portion of the body the container serving as a cooling or heating source to cool or warm the content of the box.

Abstract: The invention relates to a method for manufacturing a chain or the like, particularly for ornamental use, wherein modules are made from one or more vertebrae taken from the vertebral column of an animal, presenting the same type of articulation as the original vertebra and these modules are fitted in one another in the manner of the natural vertebral column with the aid of assembly means. The modules may be strung on a supple cord, or may be formed to be connectable by integral means. The cire perdue method may be used to produce any desired number of modules from a vertebra. Vertebrae of different sizes may be used to produce a chain of links of varying size.

Abstract: Homokinetic joint of the type in which the torque is transmitted between two ends by balls engaged in races or tracks made in said ends.Each track is constituted by two semi-cylindrical grooves, the sectional diameter of which being oriented relative to a radial axis passing through the geometrical center of the joint and perpendicular to the longitudinal axis of said two ends. The balls are thus made to roll and to be guided between two poles located on the radial axis and two other poles located on an axis perpendicular to said radial axis. Said arrangement excludes the use of any intermediate means for maintaining the balls on the bisecting plane of the joint.The invention is particularly adapted to realize the two-joints transmission assembly for a vehicle.

Abstract: A fabric manipulating device for use with a knitting machine of the type having a flat needle bed containing a plurality of equi-spaced knitting needles tricked into the bed includes a carrier that is mounted on the bed for sliding, needle-by-needle movement along the bed to effect loop manipulation. A cam-controlled linking needle is mounted on the carrier in the plane of the knitting needle in opposing relationship thereto for movement to and from the knitting needles to effect the intended knitted loop linking manipulation. A cam-controlled positioning member and loop restricting member, operating in timed relationship with a cam-controlled loop expanding mechanism and stationary loop contacting surfaces, orients and expands a knitted loop retained on the stem of a knitting needle opposing the linking needle to permit the linking needle to enter the expanded loop while a cam-controlled actuator causes the knitting needle to knock-over the loop onto the linking needle.

Abstract: An accumulator device for a washing machine for washing the towels used in continuous feed towel cabinets, comprises a channel through which the towel is passed. The channel is adapted to allow the towel to be stored therein in concertina or bunched form. Means are provided for preventing the towel from being withdrawn from the device at a speed above a predetermined maximum speed.

Abstract: Apparatus for the continuous thermal treatment of flexible sheet material includes a heated cylinder which is rotatably mounted in a frame. The presser cylinder is arranged in parallel spaced relation to the heated cylinder so as to permit passage of sheet material therebetween. The lever member is pivotably carried by the frame and a beam member which extends generally parallel to the presser cylinder is pivotably mounted on the lever member. A drive cylinder is rotatably carried by the frame on the side of the presser cylinder which is remote from the heated cylinder, the drive cylinder extending parallel to the presser cylinder. The presser cylinder is freely supported on the drive cylinder and is rotatable thereby. Elements are carried by the lever member and by the beam member which are cooperable for regulation of the spacing between the presser and heated cylinders.

Abstract: A self securing theft proof chain binder, such as would be used to cinch a chain tightly holding a cargo to a truck flatbed. The binder has hooks on either of its ends to attach to the ends of the chain overlapping the cargo and the binder is pivoted in the middle so that when it has been squeezed together it tightly draws together the two ends of the chain. The lever arm on the binder has a projecting spur with a notched tooth thereon which in turn mates with a lock on the other half of the binder so that when the two halves are squeezed together they lock in place.

Abstract: A security shield for protection of the shackle of a padlock makes use of a sheet of metal of relatively heavy gage which has one portion bent to a position where it overlies one side of the shackle when the shackle is in locked position on the body of the padlock making it difficult for an unauthorized person with an appropriate rod cutter or chisel to cut through the shackle and release the padlock. The shield is attached to the padlock itself, either permanently or temporarily, by use of a second portion of the sheet of metal bent to a suitable position where it is attached to and carried by the body of the padlock.

Abstract: A direct dial combination lock having tumblers which are cammed in reciprocating movement by rotation of a driver and which, once set, are disengaged by shifting the driver axially. Each tumbler has an internal cam track that is operated on by rotation of the driver to establish a reciprocating or back and forth tumbler motion. Gates presented on the respective tumblers receive individual combs that are movable as a set toward the tumblers in a direction perpendicular to the direction of tumbler back and forth movement. The combs are scrambled for greater manipulation resistance, and their positions relative to one another are changeable without opening the lock, to change the combination.

Abstract: A device for mounting on the inside of doors employing a dead bolt lock to cause the lock to be opened from the outside with a key but only after turning the key to the right and to the left a given number of times. The advantage of this device is to provide a selected time delay in unlocking the door.

Abstract: A stepped shaft is rough-formed at a single work station by means of separate sets of rolls operating sequentially to rough-form shaft portions of different diameters. A first set of rolls operates to reduce the diameter of the entire workpiece to approximately the desired major diameter of the finished stepped shaft. Other sets of rolls operate to further reduce the diameters of selected portions of the shaft. In preferred practice the workpiece is pre-heated to a suitable work temperature and the entire rolling sequence is carried out rapidly to produce a rough-formed stepped shaft which will require a minimum of further machining.

Abstract: An elongated bending core is inserted coaxially in an elongated outer tube. The core has at least one recess which extends along the elongation of the core. An elongated inner tube is inserted into the recess so that the inner and outer tubes together constitute a jacketed tube. The jacketed tube is bent about an axis which is normal to the longitudinal axis thereof to thereby bend the inner and outer tubes simultaneously.

Abstract: A method for rolling metal plate to form a thinner metal plate having a desired thickness including the steps of rolling metal plate at a predetermined board side rolling ratio to form a first metal plate having edge and crop portions, sizing the first metal plate such that a central portion of the first plate in a section parallel to a longitudinal direction thereof is greater in thickness than that of the end portions thereof if the edges of the first metal plate are spool shaped or sizing the first metal plate such that the central portion of the first plate in a section parallel to a longitudinal direction thereof is less in thickness than that of the end portions thereof if the edges of the first plate are barrel shaped, rolling the first plate to form a second plate of a predetermined thickness, sizing the second plate such that the central portion of the second plate in a section normal to a longitudinal direction thereof is thinner than the end portions thereof if the crop portions of the second plate

Abstract: A rolling mill stand has upper and lower work rolls supported in chocks which include liner plates on their side faces for bearing against the side faces of the mill stand housing, with the side faces of the chocks being shaped so that the liner plates on both the upper and lower work roll chocks extend both above and below the pass line defined by the work rolls. Projections on one chock and its liner plates extend into corresponding recesses on the other chock and its liner plates so that portions of liner plates on the two chocks extend in generally side-by-side relation in a region extending across the pass line.

Abstract: This invention relates to an improved crimping and cutting tool in which the tool comprises a pair of relatively moveable jaws (17.sub.L .multidot.17.sub.R) means (13.sub.2 .multidot.V.sub.1 14.sub.A) for closing said jaws to form a small crimping gap (gi) when wire is therebetween and a moveable cutting blade (16.sub.1) that wipes the said gap to cut the wire.

Abstract: Process and apparatus for making a metal annular member of precise tolerances and desired surface finish. An external die has a continuous die surface of the configuration desired for the external surface of the metal annular member and an annular ridge surrounding the inside of the die for seating one end of an annular sheet metal blank. A first punch engages the sheet metal blank and drives it into the external die so as to reduce the external diameter of the blank and seat it against the ridge. The precise tolerance of the die surface of the external die determines both the external and at least a portion of the internal dimensions produced in the annular sheet metal blank. The first punch is axially movable to an endmost position wherein substantially all of the blank has been forced into the die. An ejector punch is positioned inside of the external die and operates to provide a portion of the forming die surfaces as well as to eject the completed workpiece.

Abstract: A double acting press is disclosed having upper and lower vertically reciprocable slides and a bolster assembly therebetween, which bolster and slides support tooling for cutting and drawing a cup-shaped article from a flat blank of sheet metal in response to a cycle of reciprocation of the upper and lower slides. The bolster assembly is releaseably clamped in place with respect to the press frame during press operation and is adapted to be released from the frame and supported for rolling movement laterally outwardly of the frame to facilitate tool inspection, maintenance and replacement operations. Tooling associated with the upper and lower slides is adapted to be supported by the bolster assembly so that the entire tool package is movable into and out of the press confines with the bolster assembly.

Abstract: An apparatus and method for straightening damaged unibody-type vehicles whereby a lightweight rectangular frame is attached at its four corners to the longitudinal pinch weld which runs along both sides of the vehicle body. The frame members are rigidly connected to each other but telescopingly adjustable in length to accommodate different size vehicles and have pulling attachment points at the corners of the frame allowing pulling or pushing in any direction.

Abstract: The invention relates to the determination of characteristic rheological quantities of viscoelastic materials by measuring specific parameters which permit assertions to be made on the properties of the material owing to their functional correlation with the deformation or relaxation.

Abstract: A method of and apparatus for testing the effectiveness against leakage of a seal in a gap between two surfaces which comprises positioning and securing an envelope to span the seal and gap and extend to the two surfaces to thereby form an enclosed cavity or space defined by the two surfaces, the seal therebetween and the envelope; feeding a gas stream into the cavity and removing the gas stream from the cavity; and analyzing the removed gas stream for any potential contaminant which leaks past the seal in the gap. The method is useful for testing the seal on a floating roof storage tank, such as for liquid petroleum products.

Abstract: The flat belt tire tester which permits mounting a wheel and tire to be tested about an axis positioned above a flat belt, and has framework and controls for lowering the tire into contact with the belt under desired loads, using desired adjustments for camber and steering. The belt is powered, and can thus be used for testing the tire under simulated road conditions. The mounting framework and belt mounting construction of the present invention provides substantial rigidity through having the mounting frame geometry properly oriented in relation to the contact surface of the belt and also by providing a stiff frame for the belt mounting drums or pulleys.

Abstract: Tire-pressure monitoring apparatus for use with either single or dual tires for signaling deterioration of tire pressure by connecting tire pressure, upon actuation of a valve device by such reduced pressure, to a cylinder device which, in turn, moves a pin member into a space between two adjacent teeth of a rotatable member affixed to the tire, rotatable therewith, and having a plurality of teeth peripherally arranged thereon and alternately interspersed with equal spaces, except one, therebetween. Under normal conditions, the rotating member generates a magnetic field in the proximity of a sensing device which cooperates with the magnetic field for transmitting a series of signals of equal magnitude. If the magnetic field is interrupted by movement of the pin into the spaces, the sensing device transmits either control signals to an anti-skid device or tire-pressure indicating signals to a display panel, depending upon the magnitude of the signals.

Abstract: A weighing apparatus for a vertical material feeder which feeds particulate material from a storage bin through a prefeeder agitator and a feeder bowl to an outlet pipe. The weighing apparatus includes a radiation source and detection means positioned on opposite sides of the path of travel of the material through the feeder bowl for generating a signal representing the mass of material in the path. The weighing apparatus also includes a speed sensor for generating a signal representing the speed of the material through the feeder bowl and means responsive to the mass signal and the speed signal for generating a signal representing the rate at which the material is being fed through the feeder bowl.

Abstract: A pyrometric sheath in which, in order to, inter alia enhance the response time of the protected temperature sensor, a partition of relatively high thermal conductance is hermetically bonded to the surrounds of an opening in a thermally insulating body. In a preferred arrangement, a thin metal foil partition is chemically bonded to an insulating tube of a refractory oxide ceramic.

Abstract: A barometer of the type having a stabilized membrane capsule includes a transmission mechanism for transmitting the motion of the membrane capsule to a pointer mechanism. The transmission comprises a lever shaft with two lever arms thereon, one coupled to the pivotable drive element of the pointer mechanism and the other having a free end abutting directly on the membrane capsule and having an axis which extends obliquely relative to the plane of the membrane capsule.

Abstract: An automobile suspension dynamic simulator having a base, tilting platform structure for supporting an automobile thereon, hinges along one lateral side of the tilting platform structure pivotally connecting it to the base, and structure for lifting the other lateral side of the tilting platform upwardly along an arcuate path. The lifting platform structure comprises a pair of laterally spaced tilting boards. A first pair of laterally spaced load measuring devices are mounted atop the front end tilting board for positioning beneath the front tires of an automobile. A second pair of laterally spaced load measuring devices are mounted atop the rear tilting board for positioning beneath the rear tires of an automobile. The simulator further includes a pair of tension spring scales to be attached to the center of gravity of the front end of the automobile and a pair of tension spring scales for attachment to the center of gravity of the rear end of the automobile.

Abstract: An accelerometer mechanically attached to a machine senses the machine rotor's unbalance and outputs an electrical signal which is indicative of the magnitude and position of the rotor unbalance. A tachometer generator's rotor is mechanically coupled to the machine rotor and outputs an electrical signal delineating the speed and rotational position (with respect to time) of the rotor. By physically indexing one of the tachometer generator rotor poles (north or south) to an index/mark on the engine rotor, the position of the mark at any instant in time is determined. The physical location of the unbalance is obtained by determining the phase relationship of the unbalance signal to that of the tachometer generator signal. This is accomplished by obtaining simultaneous "snapshots" of the two signals employing multiplexing techniques to alternately sample each signal. The signal is then recorded and later reduced by ground equipment.

Abstract: Apparatus for use in balancing a truck or bus wheel includes an assembly for axially securing such a wheel on a shaft and a stand to rotatably support the wheel-holding assembly while the wheel is being balanced. The stand has spaced shaft supporting members rearwardly and downwardly inclined and provided with stops spaced rearwardly of the front of the stand and hooks that protrude therefrom. The stand has a chamber open at the front and between the members which is of a depth and length greater than the radius of the wheel. With the stand tipped forwardly to position the hooks to receive the shaft of the assembly and then returned to its stable position, the assembly is lifted and held against the stops.

Abstract: A real time scanned transducer ultrasonic imaging system is disclosed having an improved mechanical scanning system for reciprocating its transducer. The transducer is immersed in a fluid containing chamber. The drive system includes monitoring equipment which produces signals indicating transducer position. Imaging electronics processes (1) electrical signals produced by the transducer in response to ultrasonic echoes, and (2) the transducer position signals from the monitor. Display apparatus produces substantially real time ultrasonically derived images. The drive system includes a transducer carriage which reciprocates on guide rod structure. A drive arm is coupled to the carriage by a compliant coupling element. A drive shaft attached to the drive arm extends through a wall of the chamber, such that the drive shaft oscillates the drive arm.

Abstract: The test head includes its own calibration device in form of a wire or a bore in front of the transducing surface so that a distinguishable calibration echo is always available.

Abstract: A pressure sensing device having attached thereto an extended heated sensing tube said device being surrounded by a heated enclosure.

Abstract: The disclosed transmitter operates in a two wire process control system to modify a loop current through the two wires that are representative of pressure drop through an orifice into a second loop current through the two wires that are representative of flow rate through the orifice. To accomplish this, the transmitter generates a first voltage that is representative of the first loop current. Then, it generates a second voltage proportional to the square root of the first voltage, and generates a third voltage proportional to the difference between the first and second voltages. The transmitter then sinks an additional current in the two wires proportional to the third voltage. The sum of the first loop current and the additional current equals the second loop current.

Abstract: The pump drive mechanism provides a high reduction drive from a continuous operating motor to a crank arm to oscillate the counterbalanced jack for a pump as used in the oil field. The drive utilizes three series of belts to obtain a reduction of 190 to 1. The belt drive reduces downtime and improves the efficiency of drives for pump jacks.

Abstract: The driving arrangement comprises a planetary gearing transmitting driving torque to the driven output member including a hub journalled in bearings in a support structure and a drum coupled therewith, adapted to take up the load of a moving object. The hub is enclosed within the drum, the hub and the drum being interconnected with aid of discs fixed to their respective end faces, the discs being likewise rigidly coupled with aid of intermediate elements extending between the planet pinions of the planetary gearing, perpendicularly to the plane of rotation thereof. The shafts of the planetary gearing are rigidly coupled with one of the said discs. The driving arrangement incorporates a braking system accommodated outside of the hub.

Abstract: A device to employ centrifugal force for use as linear motion utilizing a pair of counter rotating arms about a common axle. One arm contains a mass splitable and transferable to the other arm and back again at one hundred and eighty degree intervals. The device may include a surface travel system or two of such devices may be employed in tandem for any mode of travel.

Abstract: A transmission or mechanical gearing for roller blinds or gates, window shades and awnings or the like, with a self-locking worm gear drive in a two part housing on one end of a shaft and an abutment for limiting of the number of rotations of the shaft in the unwinding direction. The abutment comprises an abutment pinion with the teeth number (n), the abutment pinion meshing with the worm wheel, a locking disc with the tooth number (n-1), the locking disc likewise meshing with the worm wheel, the locking disc being mounted coaxial to the abutment pinion, and an axially moveable abutment pin arranged in the abutment pinion, the abutment pin being prestressed with a spring and by means of a slot in the locking disc is able to engage in a double-sided abutment in the housing.

Abstract: The present invention relates to a bevolute gearing system which transmits torque between non-intersecting shafts at right angles to each other. The bevolute gear system includes a pinion gear which is flat and in one plane. The pinion gear is designed to include teeth which are shaped in the form of an involute spiral. The bevolute gear system includes a second gear which is also designed to include teeth which are shaped in the form of an involute spiral. The second gear is mounted on a non-intersecting axis at a right angle to the axis of the pinion gear. The bevolute gearing system of the present invention reduces the thrust loads to negligible values for the bearings of both the pinion gear and the second gear. In addition, higher mechanical efficiencies, wider tolerances on alignment of the gears, interchangeability between the gear and the pinions to produce different ratios and a substantially eliminated gear noise are a few of the many advantages disclosed in the present invention.

Abstract: A releasable push-pull sheathed cable control system in which the sheathed cable extends between the control input and the control output and includes a looped portion fixed at one end and releasably fixed at its other end so that tension or compression loading of the cable following cable jamming anywhere within the sheath or therebeyond in a control system will cause deformation or the looped portion and release of one end of the sheathed cable.

Abstract: The invention comprehends a remote control mechanism comprising push-pull control links operatively connected at one end to spaced locations of a beam, said beam being pivotally movable about mutually displaced first and second axes, said spaced locations of said beam moving equally in the same direction upon pivoting of said beam about said first axis, said spaced locations of said beam moving in opposite directions relative to said control links upon pivoting of said beam about said second axis, one of said axes being fixed and the other axis rotating about said one axis when said beam is pivoted about said one axis, paired coincident movement of said control links being complementary to both said spaced locations of said beam moving equally in said same direction, and differential relative movement of said control links being complementary to said spaced locations of said beam moving in said opposite directions.

Abstract: A flexible reciprocating mechanical control for actuating a remotely positioned device including a plurality of individual load bearing carriers arranged for movement within a curved housing and joints interposed between the individual carriers to space the carriers from one another and to enable relative pivotal movement therebetween as the control moves within the curved housing.