Abstract: A weft knitting machine includes a row of crochet needles and two rows of thread guides for guiding a respective basic warp thread or additional warp thread. Basic warp thread guides and additional warp thread guides are each attached to a carrier, of which one is fastened to a hollow rod and another to an inner rod arranged in this. Both the rods pivotable together about the same axis and displaceable along this axis independently of each other. The additional warp thread guides are moved in such a manner that each additional warp thread is laid alternately around one of two neighboring needles in the same direction of rotation. In this manner, a knitted article is formed which does not ravel on the tearing of a thread and which is produced on a machine equipped with crochet needles wherein the additional warp threads can also still form wale loops.

Abstract: A warp knitting machine has a needle bed and a jacquard arrangement for producing patterned wear from a plurality of threads. The machine includes a thread positioning bar and a plurality of thread positioning sinkers mounted on the thread positioning bar. The sinkers are spaced to allow the sinkers to pass between the needles of the bed. The machine also includes at least one guide bar and a plurality of thread guides mounted on each guide bar for separately guiding the threads. The thread guides are operable by the jacquard arrangement to move longitudinally relative to said guide bar and with a component of motion in a plane alongside the needle bed. This component is sized to allow each of the threads to reciprocate between and be pulled against the interior sides of a corresponding, neighboring pair of the sinkers.

Abstract: An agitator mounted wash additive dispenser and shower spray is provided for an automatic washer wherein a charge of wash additive is retained in a vertical axis agitator during an agitation step at which time it is diluted, and then is dispensed into the wash tub after the spinning step. The agitator has spray means which provide an umbrella spray of wash liquid returning from a flow passage in the agitator to the wash tub.

Abstract: In a patterned matrix for use in conjunction with the skiving of shoe parts upon a splitter machine, the pattern matrix being applied contiguous with the intended shoe part for application to the machine, the pattern matrix including along its edge a relief or raised portion that urges the aligned edges of the shoe part into a greater skiving out than any other portion of the shoe part, and another relief being of greater density, comprising a cord, arranged within the first relief or raised portion and effecting during skiving a deeper cut into the intended shoe part to assure a uniformly weakened area for forming the fold line for the shoe part when being fabricated into a shoe component. A pair of patterned matrixes may be adhered together, as through a pressure sensitive material, with the relief member therebetween, for allowing usage of the patterned matrix for forming skived edges upon shoe parts of reverse proportions, as where each may be constructed into a pair of shoes.

Abstract: An autofrettage process which relates to the autofrettage of thick-walled cylinders through the cyclical application of high pressure to the internal bore of the cylinder. The invention encompasses the autofrettage of cylindrical members in cyclical pressure stages each of a few seconds to a few minutes in duration during each of which the bore of the cylinder being autofrettaged is subjected to a pressure in the range of about zero to 100,000 psi and, preferably 40,000 to 100,000 psi. Preferably, the pressurizable hydraulic fluid medium utilized for the autofrettage is ethylene glycol or hydraulic oil, or any similar fluid which will not freeze or solidify at the pressures encountered during the inventive process.

Abstract: A hypodermic syringe destruction device wherein a cutting member and hammer member are positioned on a movable carrier within a housing. A fixed anvil is mounted within the housing, and an opening in the housing is arranged to permit the needle end of a hypodermic syringe to be inserted in an open region between the anvil and blade-hammer, with the movable carrier in a normal position. A solenoid is mechanically coupled to the carrier to move the blade through the syringe and hammer across the needle and anvil, whereby the needle region of the hypodermic syringe is separate from the syringe portion, and the needle is bent essentially 90.degree..

Abstract: A device for manufacturing, by extrusion, a piece having a recessed portion in its lateral surface, and, on one side, a head and, on the opposite side, a tail, which device comprises a fixed die holder containing a die, a punch borne by a mobile support and structure for axially displacing the punch to engage it in the die and to disengage it therefrom together with means for ejecting the extruded piece. The device further comprises, in front of the fixed die holder, a coaxial mobile die holder composed of two parts, forming clamp. A spring and cooperating cams are provided for opening and closing the mobile die holder-forming clamp and an actuator is provided for displacing the mobile die holder in translation parallel to the axis of the punch and of the die.

Abstract: A spindle for an axle is capable of supporting a vehicle wheel which is rotatably mounted thereon at a pair of axially disposed bearings. The spindle includes a cylindrical portion at its outer end which serves as an outer bearing mounting region while the portion of the spindle inwardly of the outer bearing mounting region is provided a frusto-conical outer surface. The inner wheel bearing has an inner race with a frusto-conical inner surface so that the frusto-conical outer surface of the spindle will serve as the inner bearing mounting region. Such a spindle is preferably cold formed from a hollow tubular blank having a generally uniform external diameter and wall thickness.

Abstract: A ram assembly for an electromagnetic work tool which includes a ram shaft, conductive driving plate, and insulator plug, which elements are bonded together to form an integral ram assembly thereby reducing shear stress on the insulator plug since no counterbores or screws are utilized in the ram assembly. The insulator plug utilizes a composite of unidirectional glass fibers in an epoxy matrix, which glass fibers are oriented parallel to the axis of the ram shaft thereby providing superior load distribution of the insulator plug. A reduced number of interfaces in the ram assembly provides less interfaces for reflection of shock waves.

Abstract: The present invention relates to a nib for a forming tool of bolt head or nut, wherein a nib 7 to be used for a tool comprises a segment combination nib 2 composed of a plurality of nib segments 1, and a regular polygonal hole 6 is formed at the inside of the nib. Regular polygon is formed also at the outside of the segment combination nib 2, and a bush 3 having the same shape as the nib 2 is fitted thereto so as to reinforce the nib 7. Moreover, stress absorbing hole 9 is formed on edge portion inner circumference of the bush 3 or outer surface of the segment combination nib 2. Since the stress absorbing hole 9 serves to absorb stress concentration applied to the nib segments 1, the nib 7 is not liable to flaw in comparison to prior art and stopping of the machine for exchange of the nib 7 is scarcely needed. Accordingly a forming tool with effect of improving the productivity can be provided.

Abstract: The unit comprises a mobile chassis having an enclosure mounted thereon, in which enclosure are compactly and efficiently confined an air-operated hydraulic pump, a water conduit for admitting water to the pump and for discharging pressured water therefrom, and a compressed-air conduit, for admitting operative compressed air to the pump, together with a pressure regulator for the air. The enclosure has a control panel through the face of which are mounted air and water inlet connectors for the conduits, and a water outlet connector. Air and water inlet valves, interposed in the conduits, are also mounted on the control panel, as well as a water discharge valve; the latter is interposed in the discharge end of the water conduit. Finally, air and water pressure-indicators, which communicate with the respective conduits, are fixed in the panel, and a pressure-setting regulator, which communicates with the air conduit, is secured in the panel.

Abstract: A measuring carriage (2,4,6), defining a transverse reference base extending parallel to the plane of the railway track, intended to be connected to a driving vehicle. This carriage comprises three detectors (13, 14, 15) located above and transversely to each line of rails (5) in order to cover a portion of the tracing of the rolling table. These detectors (13,14,15) are connected to an electronic processing circuit (16 to 23, 29) of their signals adapted to determine the amount of curvature (f) of the rolling table and its inclination (i) with respect to the plane of the railway track with the measurements representing the distances (Ya, Yb, Yc) between the reference base and the rolling table under the detectors.

Abstract: Cylinder engine data, is displayed in a bar chart graphics mode format on a cathode ray tube (CRT); the data from each cylinder is displayed in dual bar segments comprising a first bar representing the mean value and a second bar representing the mean deviation of the measured parameter data, the first bar extending from a zero baseline on the abscissa to the mean measured value as represented graphically by comparison to a scaled ordinate, the second bar being generally centered about the first bar mean value and extending at its end points to the actual peak and actual minimum values of the selected parameter.

Abstract: A switching device for detecting the rotational positions of a rotary shaft including a lever rotating with the rotary shaft as a unit, and an electrically conductive plate spring having a central portion and two side portions which is bent and mounted on the lever. The two side portions of the plate spring are each formed with a movable electrical contact, and electrical contacts each juxtaposed against one of the movable electrical contacts on the plate spring are formed in fixed members respectively. Rotation of the lever brings one set of movable and fixed contacts into and out of engagement with each other to detect one rotational position, and further rotation thereof brings the other set of movable and fixed contacts into and out of engagement with each other to detect another rotational position. The plate spring is held in position in flexed condition on the lever by retaining means which has the effect of positively keeping the two contacts with each other.

Abstract: Apparatus for determining the speed of an engine (10) and the phase shift between first and second shafts (16,19) rotatably driven by the engine (10). First and second fixed magnetic sensors (50,56) generate first and second signals (49,55) in response to movement of magnetically sensible members (47,53) through circular paths at speeds proportional to the speeds of the first and second shafts (16,19), respectively. Clock pulses from a fixed frequency clock (65) are counted to obtain a first count between successive first signals (49) and a second count between successive second and first signals (55,49). The first count is inverted to obtain information as to the instantaneous engine speed. The second count is divided by the first count to obtain information as to the instantaneous phase angle between the first and second shafts (16,19). Successive instantaneous information is averaged to cancel the effects of engine torsionals.

Abstract: The present invention discloses a temperature sensor which has a very rapid response to changes in fluid temperature. The configuration of the sensor is especially adapted for use in oil and gas wells to protect electrical components from mechanical damage. The electrical circuit provides a wide range of temperature readings with a high degree of accuracy.

Abstract: A first temperature dependent resistor and a second temperature dependent resistor are disposed within a single gas passage defined by a branch pipe extending into a conduit for a gas whose flow rate is to be measured. An electric heater is located between these temperature dependent resistors and is heated for the purpose of measurement of the flow rate of the gas. A first reference resistor and a second reference resistor constitute a bridge circuit together with the first and second temperature dependent resistors, and the difference between the potentials at the terminals of the bridge circuit is amplified by a first differential amplifier circuit. The difference between the output voltage of the first differential amplifier circuit and a predetermined reference voltage is then amplified by a second differential amplifier circuit.

Abstract: A fluid level or fluid volume sensor or probe for mounting in a fluid storage vessel for sensing the level or volume of the fluid within the vessel which is comprised of four like electrically conductive capacitor elements each formed to present two electrically connected capacitive plates disposed in angular relation to each other. Electrical insulating material constitutes centrally located means for mounting the capacitor elements in fixed spaced relationship from one another around such mounting means and for positioning the elements so that each capacitive plate thereof defines with a capacitive plate of the next adjacent capacitor element a dielectric space therebetween whereby the mounted capacitor elements together form four like dielectric spaces. Material of known constant dielectric value fills two of the dielectric spaces thereby forming with their respective space defining capacitive plates two capacitors of known fixed and substantially like capacitive value.

Abstract: A tubular shaped fluid level or fluid volume sensor for mounting in a fluid storage vessel for sensing the level or volume of the fluid within the vessel which comprises: a first pair of like electrically conductive capacitor elements each formed to present two electrically connected capacitive plate areas, the capacitor elements being spaced from one another and shaped and arranged to generally define together the outer periphery of the tubular sensor; and a second pair of like electrically conductive capacitor elements each formed to present two electrically connected capacitive plate areas, the second pair of capacitor elements being positioned within and spaced from the first pair of capacitor elements and being spaced from one another and shaped and arranged to generally define together the inner periphery of the tubular sensor.

Abstract: A densitometer for use by itself or in a net oil computer. The densitometer includes two differential pressure units to detect the difference in pressure between two corresponding pairs of points and the differences substracted to provide a corrected density output signal. This output signal is then essentially independent of viscosity and/or other variables.

Abstract: An ultrasonic diagnosing apparatus comprising a probe for radiating ultrasonic wave beams toward a target and converting ultrasonic echo data reflected from the target into electrical signals indicative of a tomogram of the target, an ultrasonic wave transmission and reception circuit for controlling the probe to radiate the ultrasonic wave beams in predetermined ultrasonic field patterns, a processor for processing the electrical signals in accordance with correlations among the ultrasonic echo data, which depend upon the ultrasonic field patterns to eliminate artifact components of the tomogram from the electrical signals, a display device for displaying the tomogram of the target in response to the output signal of the processor, and a system pulse generator for generating a system synchronizing pulse supplied to the transmission and reception circuit and processor.

Abstract: Apparatus for monitoring mechanical vibrations in a component part of an operating machine such as a large electrical power generator includes an electric charge producing transducer, preferably a piezoelectric accelerometer, affixed to the component part of the machine to be monitored, and a charge converter network located within the machine but relatively remote from the transducer. The charge converter network accepts the signal from the transducer, in the form of electrical charge generated at a rate and magnitude representative of the mechanical vibrations, and converts the charge signal to a conventional electronic signal. The charge converter network includes a differential operational amplifier having a resistive-capacitive feedback network providing equal impedance values to a corresponding resistive-capacitive network at the noninverting input of the amplifier. The transducer output is applied between the differential input terminals of the amplifier.

Abstract: A Wheatstone bridge circuit for a strain gage designed to eliminate the zero offset due to heated cables occurring when the active elements of the bridge circuit are elevated to high temperatures. The bridge circuit comprises an active, a dummy and two completion resistors and is distinguished from conventional bridge circuits in that the resistance of the completion resistors substantially exceeds the value of any other resistors in the bridge circuit. The cables are used to connect the active and dummy resistors which are at the elevated temperatures to the completion resistors which are at room temperature. Heat induced resistance changes in the cables normally produce the zero offset because the cables form a part of the bridge circuit and are heated unevenly; however, the high value of completion resistors incorporated in the present invention tend to nullify the resistance changes in the cables and thereby eliminate the zero offset.

Abstract: An automatic pull tester and an acoustic emission system are herein combined to analyze the failure modes of lead frames bonded to integrated circuits. By using a discriminant analysis technique, a specific failure mode can be determined in real-time by first measuring up to five variables during the pulling operation. The five variables that may be measured comprise acoustic emission signals of a first amplitude (AE1), acoustic emission signals of a second amplitude (AE2), the time elapsed until failure (.DELTA.t), the number (n) of acoustic emission bursts above a first threshold, to the peak pulling force at failure (L.sub.max). Next, the variables measured are incorporated into a plurality of predetermined functions, each function corresponding to one failure mode (FM1 to FM5). The failure mode of the bond is determined by selecting the function having the highest value (FIG. 4).

Abstract: An electromagnetic flowmeter system in which the flow rate signal yielded by the flowmeter primary is applied as an input to a secondary which acts to measure the ratio of the input signal to a reference voltage proportional to the magnetic flux established in the primary, the reference voltage reflecting variations in this flux. Ratio measurement is effected in the secondary by means of a feedback loop in which the reference voltage is pulse-modulated by pulses having a constant width and a frequency which varies in accordance with the flow rate, the pulses having a duty cycle sufficient to cancel the input signal at the input of a summing amplifier. When the variable frequency pulse output from the secondary accurately represents the flow rate, the pulse-modulated reference voltage will then be equal in magnitude and opposite in phase to the input signal.

Abstract: An improved dampened ultrasonic transducer for imparting sonic energy to or receiving sonic energy from fluid, having a housing with a cylindrical cavity therein providing a closed end wall at one end and an opening in the opposite end, the housing having internal threads adjacent the opening. A piezoelectric crystal is positioned within the housing, the front face being contiguous to the cavity closed end wall, a cylindrical dampening member positioned within the cavity with the front face contiguous to the crystal rear face, a plurality of spring washers, the forwardmost washer engaging the rearward face of the dampener member, and an externally threaded plug member positioned in the rearward end of the housing and threadably advanced to apply compressive resilient force against the dampening member to maintain firm contact of the dampening member with the crystal and the crystal with the housing closed end wall.

Abstract: Apparatus for measuring the speed of flow of a flowable medium by determining the transit time of sound waves therein wherein first and second sound transmitter/receivers in the form of electroacoustic converters are spaced apart in the medium with an imaginary line joining said first and second transmitter/receivers having a component in the direction of the flow to be measured and wherein sound pulses of predetermined length are alternately transmitted in a first direction from said first transmitter/receiver to said second transmitter/receiver and in a second direction opposite to said first direction from said second transmitter/receiver to said first transmitter/receiver said sound pulses being converted into electrical measurement pulses on arrival at said transmitter/receivers there being processing circuitry for processing electrical measurement pulses to determine the speed of flow from the transit times of the sound pulses in said first and second directions, said processing circuitry including mean

Abstract: A marine drive is shown in which a reverse pinion, which is in continuous mesh with a bull gear, is provided with a detuner to prevent vibration while it idles. The detuner includes a ring gear detuner pinion disposed about the reverse pinion shaft. The detuner pinion has helical teeth as do the reverse pinion and bull gear. One end of the detuner pinion is slidably mounted on a ring which encircles the reverse pinion shaft adjacent the reverse pinion, and the other end of the detuner pinion is supported by a diaphragm assembly which prevents torsional and radial motion but permits axial movement of the detuner pinion. The diaphragm assembly is mounted on a sleeve which is secured to the pinion shaft and extends through, but out of contact with, the detuner pinion.

Abstract: A calibratable dial for mounting on a control shaft. The dial includes a hub and a skirt frictionally fastened to each other for rotational movement in unison. The hub has a generally cylindrical portion and a disc portion. A shaft receiving socket is formed in the generally cylindrical portion of the hub. A central opening is formed in the skirt and is sized to fit over and receive the generally cylindrical portion of the hub when the skirt and hub are frictionally fastened to each other. An arcuate toothed sector is formed in the skirt along one portion of the central opening thereof at a location overlying the disc portion of the hub. Instrument receiving sockets are formed in the hub in alignment with the central opening in the skirt. The sockets are positioned to extend under the arcuate toothed sector of the central opening of the skirt so that an instrument inserted in either of the sockets will engage the hub and the toothed sector of the skirt.

Abstract: A change-speed transmission for motor vehicles, with the transmission including a planetary gear transmission arrangement having a pair of sun gears, a pair of ring gears, and a double webbed planetary gear carrier supporting at least one primary planetary gear and at least one secondary planetary gear. The primary planetary gear meshes with one of the sun gears and the secondary planetary gear meshes with the primary planetary gear and the other of the sun gears. One sun gear, acting as a free transmisson member and one ring gear are respectively adapted to be brought into an operative connection by a gear shift brake arrangement. The other sun gear as well as a further transmission member may be placed in a driving connection with the input shaft of the transmission.

Abstract: A coupled planetary gear system for use preferably with the wheel assembly of large vehicles in which the secondary planet gears and the primary ring gear are secured to the wheel assembly. The input shaft drives the primary sun gear, and the primary planet gears drive the secondary sun gear.

Abstract: An apparatus for angularly positioning a rotary member such as turn table, etc. by employing two separate motors.First motor is connected to drive the rotary member in a work operation and second servo motor is connected to drive the rotary member in a servo angular positioning movement.A power transmission mechanism is connected with the first motor to rotate the rotary member in the work operation and a coupling mechanism including a single position clutch therein is connected with the second motor to rotate the rotary member in the servo movement. A first detector is provided to detect a predetermined angular reference position of the single position clutch and a second detector is disposed to detect a predetermined reference position of the rotary member and thereby allowing the single position clutch to engage. A controller is connected with the second motor and with the first and second detectors to regulate the servo operation.

Abstract: A tool for cleaning or changing contact tips is provided which avoids damaging the tips. The tool has a handle portion with a cylindrical bore therein and a rotatable member eccentrically mounted in an aperture in the side of the handle having teeth for adjustably engaging the side of the contact tip when a contact tip is inserted into the cylindrical bore. An annular insert is located in the outer end of the cylindrical bore having teeth for cleaning splatter from the contact tip. The cylindrical bore in the handle member may be offset from the center of the handle member to cause the handle member to provide eccentric movement when rotated about a contact tip.

Abstract: A telescoping hex head nut driver comprising a first hexagonal head on a shank. A handle is attached to said shank. Smaller hexagonal heads and shanks telescope within the first hexagonal head and shank. The inner heads can be extended to engage smaller hex head nuts, and simple and easy to use means are provided in the handle to extend and retract the inner sockets.

Abstract: A method and apparatus for machining a workpiece to perform several functions including sensing tool wear, enhancing tool life, tool wear compensation, cutting a workpiece having two different materials joined at a boundry, and suppressing chatter, including placing a cutting tool having a rake face and a clearance face with a first clearance angle with respect to a workpiece and a second clearance face with a second clearance angle with respect thereto and with the first clearance angle being less than the second clearance angle and supporting the cutting tool in a rotatable tool holder having an axis of rotation with the cutting tool tip being aligned with the axis of rotation such that rotation of the holder varies the cutting tool geometry to perform the several functions.

Abstract: A tool calibrator and method including a gauge head with a surface for chucking in a workpiece holder on a machine lathe. A plurality of contact surfaces on the gauge head function to contact the tool cutting edge when moved transverse to and parallel to the rotational axis of the workpiece holder. Electrical sensing circuitry detect resulting contacts and relay the same to the numerical control circuitry of the lathe for automatically determining relative position of the tool cutting edge. This input data is used to control movement of the tool in its tool holder after the gauge head has been removed and a workpiece mounted for the machining operation.

Abstract: In an apparatus for automatically feeding bar stock material into a numerically-controlled automatic lathe, a bar is rotatably clamped and borne by the clamp jaws of several bearing clamps disposed in a row at intervals along the bar and orientated at respectively different angles about the bar, each clamp jaw comprising three pulleys in triangular formation and an endless belt supported on these pulleys, one of which is driven, the bar being clamped between a span of the belt between two pulleys of one jaw and that of the other jaw of each bearing clamp. The bar is thus held at clamping positions that vary helically about the bar as it is fed by a feed pipe into the lathe.

Abstract: An apparatus for cutting tires is disclosed that employs: a base on which there is disposed two upstanding shafts (one rotatable), and first and second plates to sandwich therebetween the tire casing. Both plates have upstanding teeth members, an off-center hole and a center hole. The rotatable shaft is disposed in the center hole of both plates and the other shaft is disposed in the off-center hole of the first plate. On the same side of the first plate on which the upstanding teeth means are disposed, there is affixed an upstanding member which is received in the off-center hole of the second plate. A cutter bar is provided that has a cutting means and a rotatable handle on one terminal portion. The cutting bar also has a handle and it contains an elongated rectangular shaped slot. The terminal portion of the rotatable shaft is rectalinear in cross section and is disposed in the cutter bar slot so that upon rotation of the shaft, the cutter bar also rotates.

Abstract: A method for cutting off a steel plate, wherein the steel plate is heated to a temperature within the range of from 950.degree. to 1,400.degree. C. at the time of cutting off the steel plate; the heated steel plate is placed on a roller table extending horizontally and positioned at a desired position so that a side edge of the heated steel plate is in contact with the cutting edge of at least one cutting knife on the roller table. The cutting edge angle of the cutting knife is within the range of from 10.degree. to 45.degree.. The cutting knife is then moved horizontally relative to the heated steel plate, in the width direction or the length direction of the steel plate, at a cutting speed of from 10 to 1000 cm/minute, thereby cutting off the steel plate by the cutting knife in the horizontal direction.

Abstract: An automatic performing apparatus of an electronic musical instrument comprises a memory for storing musical note data representing progression of a music to be played and control data for controlling such a generation mode of music tones being generated as tone color and modulation effect. The generation mode of musical tone signals generated by a tone forming circuit in response to the musical note data read out of the memory is also automatically controlled by the control data read out of the memory.

Abstract: A dispenser for serving and severing web from a roll includes a container for supporting the roll and a slotted cutting shelf over which web from the roll is draped. A swing-down cover hinged to the container carries a knife blade aligned with the shelf slot and a retractable sheath which envelops the blade until the dispenser is operated to sever the web. The sheath is an elongated flexible resilient member which is downwardly bowed so that, when the cover is swung toward its closed position, the sheath engages the web on the shelf at the midportion of the web first and then gradually engages web portions outboard from that midportion in a progressive fashion by a rolling clamping action until the entire length of the sheath is flexed flat against the web on the shelf thereby laterally tensioning the web as the blade edge projects through the web into the shelf slot.

Abstract: A touch responsive envelope control system is provided for use in an electronic musical instrument having a multiplexed keyboard, a plurality of assignable tone generators, each being assignable to producing a single note of one or more notes corresponding to one or more actuated keys of the keyboard and a keyer associated with each tone generating means for keying the generated tone with controlled attack time and decay rate and a controllable peak amplitude. The touch responsive system comprises a peak amplitude control system responsive to the actuation of each key for keying the associated tone with a peak amplitude corresponding to the intensity of actuation thereof. The peak amplitude control system includes an encoding circuit responsive to the actuation of each actuated key for producing an encoded intensity signal corresponding to the intensity of actuation thereof and a decoding circuit responsive to each encoded intensity signal for producing a corresponding peak amplitude control signal.

Abstract: A teaching device for stringed musical instruments used by a player thereof to identify, practice and make changes between notes of scales of different keys. It is constructed of a simulated fingerboard comprising a rigid support surface (56) with magnetic guide members (51-54) therein and a set of structurally like note index units (as 101-128) each of such units comprising an upper label bearing panel (81) and a lower support and attaching magnetic element (83) and each of such units being removably yet stably locatable on the fingerboard. The apparatus components are organized to correspond with written music notation and operate to provide (a) a visual and tactile guide for proper finger positioning on the fingerboard, (b) finger positioning practice and (c) visual signal when finger positions are improper, and (d) facilitate removing, displacing and positioning of such units to indicate proper finger positioning for operating in different keys.

Abstract: A firing mechanism for portable rocket launchers that includes a percussion activated thermal battery to supply electrical power for arming the warhead and igniting the motor of the rocket contained within the launcher. The energy to activate the thermal battery is not available until a firing pin spring is compressed by the opening of the firing mechanism cover preparatory to firing, and the output of the battery is isolated from the rocket by a normally open electrical switch that is not closed until the trigger mechanism moves to initiate the activation sequence. A safety plate physically blocks movement of the battery firing pin and trigger until positioned by the operator. The trigger and safety plate are arranged for single handed operation while at the same time maintaining a firm grip on the firing mechanism in aiming and firing the rocket launcher.

Abstract: A weapon mount for a weapon on an armored vehicle, wherein the weapon is mounted above the roof of the vehicle and the weapon is adjustable both as regards azimuth and elevation, and has a symmetrically arranged magazine. The weapon mount is provided with trunnion arms which engage the trunnion of the weapon, is connected to the rotatable inner race of a bearing disposed in the vehicle roof which bearing supports the turret roof and provides the azimuth alignment, and is supported with its lower one-piece end in a support bearing disposed at the floor of the vehicle. The support bearing is arranged coaxially with the azimuth bearing in the vehicle roof and the section of the weapon mount which is disposed in the vehicle between the two superposed bearings is non coaxial with the bearing and generates a surface of revolution when the mount is rotated about the bearing axis, i.e., the section of the bearing mount either has an oblique longitudinal axis or has a bend in it.

Abstract: Air pressure servomotor including front shell and rear shell coupled to said front shell so as to construct a housing, a diaphragm disposed in the housing, a piston plate located adjacent the diaphragm, input rod and output rod. The front and rear shells hold a cylinder structure which extends axially from the wall of the front shell to the wall of the rear shell and supports the shells axially, and which has slits running from the forward end to the intermediate portion thereof. A valve having a valve mechanism is slidably disposed in the cylinder structure and having a valve mechanism. Said input rod is connected to the foot pedal and the output rod is connected to the master cylinder. And when the foot pedal is operated to actuate the input rod, the action of the input rod is amplified by the operation of the valve mechanism and the piston plate and transmitted to the output rod therethrough, and then the master cylinder is actuated.

Abstract: A booster steering device comprising a combined servomotor and rotary valve control is provided with means for returning the vehicle wheels to a straight ahead position after a steering operation wherein the hydraulic power of the servomotor is utilized for such return movement. The effect is achieved by a cam means actuated by manual steering force to add neutral return energy by twist of a torque rod over and beyond the stress necessary to return the control valve components to a neutral position. It has been found that such overstress results in an overtravel in relative motion of the flow control valve members in returning to neutral position, i.e., overtravel beyond neutral position, briefly. This occurs upon release of a steering force at the hand wheel. As a result of such overtravel, pressure flow to the servomotor is reversed from the direction in which it was going during the terminated steering operation and the servomotor powers the vehicle wheels to stright ahead position.

Abstract: A load supporting hydraulic system having main control valve provided with a load check valve and a vent valve; the load check valve, which has a hose connection to the main control valve, is operative to permit free flow of fluid from the control valve toward the load supporting chamber of the system and to block fluid flow from the load supporting chamber toward the control valve, whereas the vent valve is operative with the control valve to permit the load check valve to be opened by fluid pressure from the load supporting chamber to allow fluid flow therefrom thru the hose connection and control valve to drain. A cancelling valve is added to the system to override the vent valve upon failure of the hose connection and reblock fluid flow from the load supporting chamber toward the hose connection and control valve.

Abstract: A cylinder device including a piston working in a cylinder and partitioning the interior of the cylinder into an oil space and an air space, and a seal in the form of a molded packing ring such as a U-packing or U-cup packing mounted on the piston to seal the oil space from the air space. An additional lip is formed on the seal in addition to a conventional annular lip and is spaced from the conventional lip in the direction toward the air space and is angled toward the air space.

Abstract: This invention relates to a regular coffee set which is simple to use and portable. It comprises a dripper body of approximately conical shape having an opening on its bottom, a cylindrical case having an opening corresponding to the above opening and a coffee cup to be fitted for a lowermost periphery of the cylindrical case. There is formed a heat insulating space between the dripper body and the cylindrical case. The dripper body is provided at its nearly whole side with a plurality of grooves and the lowermost periphery of the cylindrical case is provided with a corrugated portion so as to be well-fitted for an uppermost periphery of the coffee cup. By inserting the dripper body into the cylindrical case, a dripping container is formed and placed upon the coffee cup.