Abstract: Apparatus is disclosed which is intended to measure the temperature of a flow traversing a blade grid, for example the valve blades of a turbojet turbine. This apparatus comprises a temperature sounder lodged within a gas escape circuit provided in a blade. In-flight monitoring of the gas temperature in an aircraft turbojet is possible with the present invention.

Abstract: A thermocouple member having a surface portion adapted for heat contact with the surface of the body to measure the temperature thereof is provided with a low friction, electrically insulated layer such as of a fluorocarbon resin over the surface portion. The thermocouple member is thereby prevented from being brought into direct contact with the surface of the body. A heat sensing section having such a coated thermocouple member is useful for measuring the temperature of a body moving either linearly or angularly as well as an electrically driven body.

Abstract: A bourdon tube transducer has included a bourdon tube with a conductive plate electrically separated from the bourdon tube and in parallel with the bourdon tube. As the pressure varies, so does the electrical reactance between the bourdon tube and the conductive plate and this variation is used to vary the frequency of an electrical oscillator that is connected to the bourdon tube and the conductive plate.

Abstract: A particle collector and fractionator having a 360.degree., omnidirectional gas slit is disclosed herein. The collector and fractionator generally comprise a top and a bottom fractionating member, each of which has a set of concentric corrugations which are complementary to the other set. The collector also includes at least one spacer bracket for mounting and spacing the concentric corrugations of the top fractionating member over the concentric corrugations of the bottom member in complementary relationship, and forming an annular, concentrically corrugated gas flow path therebetween which is circumscribed by a 360.degree. gas slit. Particles are collected and fractionated in the valley portions of the concentric corrugations of the top and bottom members whenever particle laden gas flows from any direction into the concentrically corrugated gas flow path, and out through a centrally disposed gas withdrawal means in the bottom fractionating member.

Abstract: A method and device for determining the internal structure of a body by means of acoustic beams. Transit times and intensities of acoustic beams passing through the body in different spatial directions are measured to establish the refractive index distribution and the acoustic absorption coefficient distribution, respectively at the points of a point matrix associated with the body. The non-rectilinear course of the acoustic beams is taken into account in this respect. This results in reconstructed images of higher quality.

Abstract: A ultrasonic flaw detector driving apparatus including a driving apparatus which is equipped with an arm mounted respective side faces of a main frame of the ultrasonic flaw detector driving apparatus so as to allow the arms to move into an open and closed position. A resilient member provides a force which acts on the respective arms in such a direction so as to urge the arms into the open position. A ratchet prevents the arms from being opened by the resilient member as teeth engage with a pawl in a stepwise manner. Rollers are rotatably mounted to a tip of the respective arms and are in rolling contact with the guide rail on which the driving apparatus travels. The arms are moved to the open for mounting the driving apparatus to the guide rail and thereafter the arms are moved to the closed position. Thus, the main frame of the driving apparatus can be position movably fixed onto the guide rail.

Abstract: A vibrometer comprising a reed unit adjustably clamped in position within a case. The reed unit includes three vibratory reed portions projecting from a base. Each of the reeds will vibrate at its natural frequency in response to vibration at a preselected vehicle speed, and adjustment of the reed unit according to tire size maintains the speed at which the reeds will vibrate substantially constant.

Abstract: A pressure measuring apparatus using process transmission media and comprising measuring and compensation systems. These systems have the substantially same construction which comprises a pressure receiving portion, a pressure transmitting portion and a pressure detecting portion. The pressure transmitting portion is divided into two sections, each of them contains a liquid NaK and a heat-resisting inert liquid, respectively, as pressure transmission media. A pressure of a fluid to be measured which is introduced into the pressure receiving portion of the measuring system is transmitted through the transmitting portion to the pressure detecting portion where the pressure is detected. A pressure of a gas introduced into the pressure receiving portion of the compensation system is detected in the pressure detecting portion of the compensation system in a same manner. The temperature compensation is conducted by subtracting a detected pressure in the compensation system from that in the measuring system.

Abstract: A pressure gauge is disclosed which is generally suitable for use in connection with a fire extinguisher. The pressure responsive element is rotatably secured in position in the casing by an adjustable sleeve. The zero reference dial mark is provided on the casing, while remaining dial indicia may be on the viewing crystal. Both "off-pressure" and "on-pressure" alignment of the pointer and dial markings are enabled prior to sealing of the crystal to the casing. The seal between the crystal and the casing is ultrasonically formed and contains a weakened segment to enable release of excessive pressure within the casing.

Abstract: A hydraulic pressure transducer comprises a cylindrical housing having a plurality of circumferential inwardly and outwardly directed ribs which axially position and retain coaxially aligned operative components within the transducer. These components include a hydraulic piston and cylinder, a restoring spring disposed between two centering and retaining stabilizer cups, and a biasing spring which maintains the components in compressed juxtaposition to ensure accurate and immediate response while minimizing axial dimensional stack up. The transducer senses hydraulic pressure in, for example, a brake line and provides a variable resistance output which may be used in an auxiliary electric brake system controller commonly used on recreational trailers and the like.

Abstract: A residual stress measuring apparatus for sensing a magnetic state of an object to measure a residual stress of the object comprises a magnetic sensor for sensing a magnetic state of the object to provide its state in the form of current and voltage, an AC power source for feeding an AC power to the magnetic sensor, a wattmeter for multiplying the current and the voltage supplied from the magnetic sensor to provide a variation of a core loss, and a calculator for converting the variation of the core loss into a residual stress of the object.

Abstract: A plurality of cantilever beams, each fitted with a calibrated strain gage, are arranged to pivot on a corresponding plurality of upstanding pivots located near one end of each beam of a steel plate. A cylindrical specimen threaded at each end is disposed vertically between one end of each beam and the steel plate with a machined nut and socket at each end of the specimen to provide self-alignment. A self-aligning hardened steel stud is threaded into the plate and held in a hole in the other end of each of the beams with a nut and socket. A tension load is applied to the specimen by torquing the nut on the stud, with the mechanical advantage being proportional to the relative distances between the pivot and the specimen and the pivot and the stud.

Abstract: An apparatus for measuring the cohesion force of a particulate material. The apparatus comprises a bottomed container composed of a fixed container segment and a movable container segment for containing the particulate material, a driving device for moving the movable container segment perpendicularly to the plane of separation of the container to divide the particulate material in the container into two, and a unit for detecting the external force to be applied to the movable container segment by the driving device. At least the movable container segment is suspended from and retained by swingable or deflectable support members.

Abstract: A field replaceable electrode assembly for a magnetic flowmeter or the like in which an electrode may be readily installed in and sealed relative to a fitting provided on a meter body from the exterior of the meter body. The electrode assembly of the present invention is particularly well-suited for use with flow meter bodies having a sprayed-in-place electrical insulative liner therein.

Abstract: A coupling device for attachment of a sonic doppler flowmeter to pipes or conduits is shown and described. In this coupling, a temperature compensated liquid wedge is used to couple the transducer to the wall of the pipe or conduit, and means are shown and described for eliminating bubbles from the liquid wedge region.

Abstract: A mass rate of flow meter including an unrestrained rotor and a restrained turbine and including a magnetic coupling for generating signals in a sensing coil when a predetermined point on the rotor passes a predetermined point on the turbine. A sensing means includes a sensing coil that is in a magnetic circuit with the magnetic means and a series bucking coil that is electrically in series with the sensing coil but magnetically isolated from the magnet means. A copper sheet formed as a shorted turn is disposed between the sensing and bucking coils. A mass rate of flow meter with this structure provides signals that are relatively insensitive to electromagnetic interference.

Abstract: A timer latch mechanism is provided having a timer mechanism which releases a gate structure by moving a linkage tied to arms so that the arms pivot intermediate their length to move pawls on one end away from the gate.

Abstract: The pushbutton tuner comprises a plurality of pushbutton assemblies arranged side by side and parallel to each other. Each pushbutton assembly is movable in its longitudinal direction towards and away from a control bar slidably arranged transversely with respect to the pushbutton assemblies and operatively connected with the tuner group of the radio set. The improvement resides in the fact that the transverse control bar carries an abutment pin for each pushbutton assembly, while each pushbutton assembly carries a V-shaped notch presenting two inclined edges which are intended to cooperate with the respective abutment pin provided on the transverse control bar.

Abstract: A double-acting piston and a rotatable torque applicator stem are mounted in a torque applicator housing such that the stem is actuated by the double-acting piston. A coupling member is non-movably mounted on the stem and another coupling member is mounted for axial movement thereon, each coupling member including teeth alternately engageable with the teeth of the other coupling member. The movable coupling member includes a radial arm having a free end cooperating with the double-acting piston to cause a reciprocating rotary movement of the axially movable coupling member with respect to the stem. Pressure is alternately applied on one face and the opposite face of the movable coupling member in synchronization with the actuation of the double-acting piston.

Abstract: A derailleur for a bicycle comprising four members: a stationary member, first and second linkage members and a movable member. They are arranged in the form of a pantograph mechanism. Associatd with this mechanism is a pivotal member and a spring means which may be attached to any one of the members except the second linkage member. A Bowden cable having an inner wire and an outer sheath is attached between the pivotal member and the second linkage member so that the spring means serves as both a return spring for the pantograph mechanism and as a lost motion connecting means when it is a not possible to immediately shift the derailleur.

Abstract: A zero clearance, backlash free, adjusting mechanism wherein a multithreaded helical member is constrained against movement within a movable support by means of oppositely disposed concentric threaded members separated by a concentric torsion spring. Opposite ends of the torsion spring are captivated by respective opposite concentric members. One of said members being fixidly, slidably mounted within said movable support. Rotation of the helical member forces the two concentric members apart along the helix forcing the members into a zero clearance position effective to prevent any wobble or yawing movement of the helix and thus eliminating any backlash along the helical member. A U-shaped clip surrounds the movable support so as to retain the assembly effective to prevent accidental dislodgement or movement of the concentric members.

Abstract: The shift mechanism is incorporated into the handlebar stem which goes into the front fork stem.

Abstract: A selectively adjustable means for positioning a shift fork on a shift rail. The adjustable means correlates the shift fork with a shift lever position and assures full engagement of the clutch teeth when the lever is shifted. Positive detent mechanism will assure the transmission will not jump out of gear while coasting or driving under load.

Abstract: A locking device for a tilt steering wheel in which a first bracket is mounted on an end of a steering column secured on a vehicle body, a second bracket rotatably supporting a steering wheel shaft is pivotally connected to the first bracket and a wheel drive shaft is connected to the steering shaft by a universal joint.

Abstract: An internal gear assembly comprising an internal gear and a pinion in mesh therewith is connected to either of a transmission input shaft and output shaft. A first sun gear fixedly mounted on the other of the input and output shafts meshes with a planet gear set rotatably carried by a planet carrier. Formed integral with a hollow shaft, the planet carrier is rotatable about the aligned axis of the input and output shafts. An eccentric shaft rotatably extends through an eccentric bore in the hollow shaft and is connected at one end to the internal gear assembly. A second sun gear is fixedly mounted on the other end of the eccentric shaft and meshes with the planet gear set. The speed ratio of the input and output shafts can be varied infinitely as by an electric motor geared to the planet gear set via an idler gear rotatably mounted on the hollow shaft. Additional embodiments are disclosed to accomplish the same objective.

Abstract: A power transfer case for a four wheel drive land cruiser is altered to provide overdrive capability. A main drive gear is journaled for rotation about a main drive shaft driven by the vehicle transmission system. The main drive gear includes an axially extending hub section. A direct drive gear is splined onto the main drive shaft, as is an overdrive driving gear. An overdrive idler gear provides a mechanical speed advantage and is engaged with an overdrive driven gear that is journaled for rotation about the main shaft. A shift collar is splined in continuous engagement with the hub section of the main drive gear, and is longitudinally shifted to alternatively effectuate splined engagement with either a direct drive gear or with an overdrive driven gear. The vehicle is provided with four wheel overdrive drive capability without axial relocation of any of the major structural drive line supports or assemblies.

Abstract: An ignition system control for garden tractors is disclosed which includes a single control switch actuator interconnected with independently movable mower drive and transmission drive control linkages. The tractor engine will start only if both drive control linkages are in their disengaged positions which closes the control actuator switch. The control switch includes an elongated cantilevered contact which is engageable by a control wire member. The control wire member is responsive to movement by either the mower drive linkage or the transmission drive linkage. It is held in a transverse bridge-like fashion between the mower drive linkage and transmission drive linkage and above the cantilevered switch contact. The drive control linkages may move independently of one another, but only when both drives are disengaged does the control wire member compress the contact sufficiently to close the switch and permit engine starting.

Abstract: A multi-spindle machine tool has a frame, a work spindle carrier and its rotatable work spindles indexably mounted on the frame, and a main drive shaft provided with a main brake and a main clutch. A plurality of clutches and selectively actuable to place the work spindles respectively into and out of driving engagement with the main drive shaft, and a plurality of selectively actuable brake devices are provided for the respective spindles. The arrangement is such that one or more of the work spindles can be arrested at a stage in a machining cycle by first disengaging the main clutch and applying the main brake so as to arrest all of the work spindles, and then actuating the appropriate ones of the clutches and brake devices so as to hold the appropriate work spindle or work spindles while the remaining work spindles are re-started.

Abstract: A machine for performing cutting, roll-grooving and like operations on pipe or tubing. A pneumatically operated head assembly provides for rapid tool advancement to a first predetermined position short of work engagement and hydraulically cushioned advancement therefrom to work engagement. A captive oil supply flow freely through poppet valves which close at first predetermined tool position, and at a controllable rate through a needle valve between the first and second tool positions. Automatic poppet reset occurs for rapid tool withdrawal, readying the apparatus for recycling.

Abstract: A machine tool for machining a blank, such as round bar, comprising an electric motor which includes a motor housing having an axial bore through which the blank can extend, an annular stator arranged in said motor housing, and an annular rotor arranged in and coaxially to the annular stator, a chucking device for clamping the blank which extends through the axial bore and the annular rotor, and at least one cutting tool for machining the blank, one of the chucking device and the cutting tool being mechanically and immovably connected to the motor housing and the other being mechanically and rotatably connected to the annular rotor.

Abstract: The rotary heat cutter comprises a heating element adapted to be rotated into engagement with a taut section of plastic web to sever the web transversely while the web is traveling in a straight path. Means are provided for constraining the heating element to move at the same speed as the plastic web when the heating element engages the web.

Abstract: At least three crosscutters for a web of corrugated board include a first crosscutter for the original width of the web and second and third crosscutters for crosscutting slit subwebs having reduced widths as compared to the original web width. A module formed by the second and/or third crosscutters with less power and drive requirements is located in the same vertical plane as the crosscutter rolls of the first crosscutter or laterally displaced therefrom.

Abstract: The disclosure describes improved apparatus for sampling a digitally-stored waveshape only at a rate 2.sup.N times the fundamental frequency of a note synthesized, where N is an integer. The apparatus includes a digital memory for storing a digital representation of the waveshape. A top octave synthesizer produces clock pulses at a rate 2.sup.N times the fundamental frequency of a desired note. An octave oscillator generates addresses for the digital memory in response to at least some of the clock pulses depending on the octave in which the desired note is located. A digital-to-analog converter converts the output from the digital memory into an analog signal suitable for sound production.

Abstract: The invention concerns a polyphonic musical synthesizer using digital techniques. The generation of successive wave form patterns makes use of phase data for addressing a wave form memory, and of amplitude and harmonic or octave row data contained in a set of memory blocks. Control of the synthesizer is effected by externally addressing the memory set in order to write the aforementioned data in it.The development of synthesis operations within the synthesizer is conditioned by a sequential chain of reading of the different memory blocks in terms of signals from a plurality of generators.

Abstract: An arpeggio system, utilizing bipolar digital logic devices in all control and sequencing functions, generates a variety of arpeggio and strum note patterns. A key operated switch enables a NOR logic note gate, or a series of octavely related note gates, and activates a system clock which causes a pulse to be transmitted along a chain of shift registers, one of which corresponds to each note of the organ. If a given note gate has been enabled when its corresponding shift register is pulsed, the note gate is triggered. When a note gate is triggered, the system clock pauses for a preselected interval allowing the signal from a corresponding tone generator to be sounded through an appropriate system of filters and amplifiers. The system clock can cause the shift registers to scan in the up, down, or up and then down directions. An octave priming device can permit the sounding of notes in higher octaves which correspond to notes actually played.

Abstract: Faithful replication of a drummer's hits on an electric drum, free of cogeneration of spurious signals by acoustic coupling of the drum pick-up with extraneous energy sources such as nearby musical instruments is achieved by employing as the drum hit pick-up a variable resistance transducer comprising a foamed dielectric matrix, e.g. polymer, having electroconductive particles therein, sandwiched between conductive members one of which is contiguous with the drum head.

Abstract: A spur and stabilizer assembly for a bass drum. The assembly comprises a pair of tubular stabilizer elements with their upper ends mounted substantially adjacent each other to the inside surface of the bass drum shell. The tubular stabilizer elements extend downwardly, laterally and forwardly with respect to and within the bass drum shell. A pair of spur brackets are affixed to the outside of the shell and have portions extending through perforations in the shell. The lower end of each of the tubular stabilizer elements is operatively and adjustably connected to the adjacent one of the spur brackets. A pair of spurs is provided. Each of the spur brackets has a bore therethrough, coaxial with its respective tubular stabilizer element. Each spur is telescopically received in one of the spur bracket bores and the connected one of the tubular stabilizing elements. A set screw is mounted in each spur bracket to retain the spur therein in adjusted axial position.

Abstract: A nail having a shank and head including one or more spaced grooves formed in the shank about its periphery, such that the nail can be fractured.The groove may comprise any one of several configurations, e.g. rectangular, V-shaped, concave, etc. in cross-section. The essence of the invention is to provide the nail shank with a reduced circumference at one or more locations along its length so that the nail portion above the reduced portion nearest the head will break off on impact from the side, thus leaving the remainder of the nail shank in place.

Abstract: An arrangement in firearms having a barrel and a bolt.The bolt is provided with means mounting the bolt for axial displacement and rotation on the outside of the barrel. A carrier displaceably mounted on the outside of the barrel is operatively connected to the bolt to axially displace the bolt to and from a firing position and to rotate the bolt in said position to engage and disengage the bolt at locking means on the outside of the barrel by axial displacement of the carrier.

Abstract: An electronic compensation circuit for a pneumatic load bearing bellows system closed on position, in which a servo valve provides pressure to the bellows to actuate the top of the bellows to move to a predetermined position in response to a control signal. The compensation circuit (42) cancels at least one load-variable system characteristic which, if not cancelled would cause system instability at system gain levels which are necessary for desired system response. The compensation circuit electronically provides a replacement system characteristic which permits the system to be operated at a gain level substantially higher than the gain level at which the uncompensated system goes unstable.

Abstract: A tandem type power servo booster including a housing having front and rear shells with front and rear pistons within the housing. The rear piston is coupled to a valve and an inner cylindrical member extends from the valve with the front piston secured to it. A push rod is inserted into the cylindrical member and a bias spring is also disposed therein. The front piston and the cylindrical member are formed from pressed metal and the inner diameter of the cylindrical member is larger than an outer diameter of the recessed portion.

Abstract: Hydrostatic unit is disclosed of the kind having axial pistons and a variable stroke volume, in which a distributor body is rotatable about an axis inclined relative to the axis of a driving shaft and rotatably carries a cylinder block so that the axis of rotation of the cylinder block passes through the point of intersection of the axes of the distributor body and the driving shaft, the improvement consisting in that a phase-adjusting plate is inserted between the cylinder block and the distributor body and has ports equal to the distribution ports of the distributor body, it being possible to rotate the plate about the axis of the cylinder block so as to allow for the shifts of the dead centers of the pumping pistons relative to the distribution ports of the distributor body.

Abstract: A fluid pressure actuated launching system for aircraft or other articles having a piston assembly with an exterior portion that engages the aircraft or article to be launched and an interior portion disposed within and adapted to move within a plurality of connected cylinders to provide a long working stroke and controlled acceleration of the piston and article to be launched. The cylinders are hinged to one another so that the launching system is collapsible to form a compact unit and facilitate portability and ready accommodation on a launch vehicle of limited size. The cylinders are provided with a longitudinal slot to permit passage of a web between the exterior and interior portions of the piston assembly. The slot is adapted to be sealed by a tensioned flexible closure ribbon that is operatively connected to the piston assembly and is restrained at both ends so that it does not travel.

Abstract: The invention provides a paint spray booth of the kind having an enclosed chamber defining a working area with a perforate working floor. A sub-floor located beneath the working floor has an opening, or a series of openings, through which air from the working area is extracted together with a scrubbing liquid with which the sub-floor is continuously flooded. According to the invention, sound-deadening means for reducing noise within the working area is located beneath the working floor, and these means comprise, generally, a sound-reflecting baffle plate fitted on one surface with an acoustic material. In a particular form of the invention, the openings comprise tubular outlet structures having downwardly-depending wall members, and the baffle plate surrounds the wall members in the form of a jacket, the acoustic material being disposed within the space formed between the wall members and the jacket. The wall members are perforated to allow sound to pass through into the acoustic material.

Abstract: A screw press for extracting liquids from materials such as fruits, vegetables, or the like having a cylindrical barrel having a concentric variable-speed helical feed and compression screw. The rearward portion of the cylindrical barrel comprises a cage section having perforate filter screens for passing extracted liquids and filtering out undesired solids from the material being pressed. The cage section is formed by at least one pair of open semicircular frames having a plurality of spaced apart ribs which support replaceable filter screens. The repair of frames is attached along its bottom edge to a set of interleaved hinge blocks which are hingedly attached to the frame of the press. The pair of frames is removably joined along the upper edges of the frame. When the press is nonoperating, the frames are separated at the upper edges and the hinged blocks permit the frames to open in a book-like manner and swing downward and outward completely clear of the feed and compression screw.

Abstract: A refuse compactor slide bearing for use in guiding the movement of the compactor ram along suitable guides to and from a compacting position within the compactor. The slide bearings are formed as one-piece elements having angularly related slide portions for slidably engaging corresponding angularly related portions of the ram guide means. The bearing slide portions may be formed as tongues resiliently connected to a base portion of the bearing by resilient connecting portions. The tongues are arranged to extend in a direction parallel to that defined by movement of the ram. The tongues may have different slide surface areas and configurations coordinated with the force transfer requirements. One of the slide portions includes a third tongue extending in the direction of movement of the ram toward the compacting position. Cooperating snap fastening means may be provided on the bearing on the ram assembly.

Abstract: A printer has print wires arranged in a plurality of print head groups, each group comprising a predetermined number of print wires, the individual print wire groups being arranged according to a slanted serrated wire pattern. A print head image generator is provided and is operable under control of a microprocessor to convert conventional character wire images from a data source such as a host system to the slanted wire images required for printing by the printer.

Abstract: A method for producing unique works of art in which plants, flowers and other natural specimens are utilized to create artistic effects. A metal plate is etched or engraved to produce a desired pattern thereon. The plate is selectively inked with one or more colors. The plate is placed in a suitable press and natural specimens are artistically arrayed on the plate. A sheet of soft rag paper is placed over the plate and the natural objects thereon forming a print assembly. The press is operated to place pressure upon the backside of the paper, forcing the paper against the plate and the natural specimens. The ink is transferred from the plate to the paper to form blank areas having the shape of the natural objects. Natural color agents on the natural specimens will be expressed or leached out into the paper surface forming attractive, soft colors in the blank areas.

Abstract: An article transport system comprising a plurality of article carrying trolleys which are movably supported by a pair of rollers on a pair of rails suspended within a trailer, the trolleys being stacked on the rails at a diagonal to the longitudinal axes of the rails. Means is provided on the forward portion of the rails to automatically advance one trolley roller onto one rail ahead of the other trolley roller moving onto the other rail in order to facilitate the diagonal stacking of the trolleys.

Abstract: A swivel truck frame of high torsional flexibility for rail vehicles is provided comprising a pair of generally straight longitudinal beams running parallel to one another, said longitudinal beams connected to one another by parallel running crossbeams to define a rectangular frame, said crossbeams being welded to said longitudinal beams, said crossbeams being disposed under said longitudinal beams, the lower chords of said longitudinal beams being welded to the upper chords of said crossbeams, said longitudinal beams being further interconnected by at least one middle crossbeam disposed between said parallel running crossbeams.