Abstract: A mass spectrometry method in which one or more high power supplemental AC voltage signals and one or more low power supplemental AC voltage signals are applied to an ion trap. The frequency of each supplemental AC voltage is selected to match a resonance frequency of an ion having a desired mass-to-charge ratio. The low power supplemental voltage signals are applied for the purpose of dissociating specific ions (i.e., parent ions) within the trap, and the high power supplemental voltage signals are applied to resonate products of the dissociation process (i.e., daughter ions) so that they can be detected. In one class of embodiments, the high power voltage signals resonate daughter ions out from the trap for detection by an external detector.

Abstract: A fully hydraulic steering system for a vehicle having a front frame and a rear frame coupled to each other by an articulating pin, the steering system coupling a steering unit operated by a wheel to steering cylinders, for turning the vehicle body. The steering system comprises: a sensor to detect a turning angle of the steering wheel; a sensor to detect an articulating angle of the vehicle body; a controller to compare outputs from these two sensors to drive a wheel position correcting solenoid valve according to the difference between the outputs; a pilot-type diverting valve to allow wheel position correcting oil to branch from a switch pump circuit to the wheel position correcting solenoid valve; and a safety valve to close a drain port of the pilot type diverting valve only when the driver performs steering with the wheel so that the pilot-type diverting valve feeds correcting oil to the wheel position correcting solenoid valve.

Abstract: A process for making coiled springs by intermittently rotating feed rollers with a wire held therebetween to feed the wire through a wire guide into engagement with a bending die at the outlet of the wire guide, thereby coiling the wire is provided, wherein as a follower of a cam unit moves toward the base circle of a pitch cam by the force of a spring, a pitch tool extends in an extending direction for pitching, and as the follower of the cam unit moves away from the base circle of the pitch cam against the force of the spring, the pitch tool is retracted in a retracting direction, whereby pitching is completed.

Abstract: A steering wheel position compensator of a fully hydraulic steering device for working vehicle, etc.

Abstract: A method for generating a filtered noise signal, which includes the steps of generating a broadband signal having optimized (reduced or minimized) dynamic range, and filtering the broadband signal in a notch filter to generate a broadband signal whose frequency-amplitude spectrum has one or more notches (the "filtered noise" signal). In preferred embodiments, the filtered noise signal is a voltage signal suitable for application to an ion trap during a mass spectrometry operation. The invention enables rapid generation of different filtered noise signals (for use in different mass spectrometry experiments) by filtering a single, optimized broadband signal using a set of different notch filters, each having a simple, easily implementable design.

Abstract: A mass spectrometry method in which a trapping field signal (such as a three-dimensional quadrupole trapping field signal or other multipole trapping field signal) set to store ions of interest is superimposed with a notch-filtered broadband ("filtered noise") signal, and ions are formed or injected in the resulting combined field. The filtered noise signal resonates all ions (except selected ones of the ions) from the combined field, so that only selected ones of the ions remain trapped in the combined field. The combined filtered noise and trapping field signal (the "combined signal") is then changed to excite the trapped ions sequentially, so that the excited ions can be detected sequentially. The invention can be applied to perform an (MS).sup.n or CI, or combined CI/(MS).sup.n, mass spectrometry operation.

Abstract: A mass spectrometry method in which a supplemental AC voltage signal having at least one high power frequency component, and at least one low power frequency component, is applied to an ion trap. Each high power component has an amplitude sufficiently large to eject one or more selected ions from the trap, by resonantly exciting the ions. Each low power component has an amplitude sufficient to induce dissociation (or reaction) of one or more selected ions, but insufficient to resonate the ions for detection. The frequency (or band of frequencies) of each high and low power frequency component is selected to match a resonance frequency of ions having a desired mass-to-charge ratio. Each low power component is applied for the purpose of inducing dissociation or reaction of specific trapped ions, which may be parent, daughter, reagent, or product ions, and each high power component is applied to eject undesired products of each such dissociation or reaction process from the trap.

Abstract: In a process of producing an electric or electronic component, particularly a key, a continuous track of a metal foil is machined into two metallic terminal components constituting links between two carrier strips. A base housing component is cast from a high temperature resistant material around the terminals and is connected to the carrier strips through two tags protruding outwards from opposite, outer side surfaces of the base housing component. In an inner recess of the base housing component a domed metal disc having an acoustically damping coating on the convex side surface thereof, an elastically compressible rubber component and a push button are arranged. On top of the base housing component, a top housing component preferably made from the same high temperature resistant plastics material is arranged. Within the recess of the base housing component, the terminals define electric contacts with which the domed metal disc cooperates.

Abstract: A mass spectrometry method in which notch-filtered noise is applied to an ion trap to resonate all ions except selected reagent ions out of the region of the trapping field. Preferably, the trapping field is a quadrupole trapping field defined by a ring electrode and a pair of end electrodes positioned symmetrically along a z-axis, and the filtered noise is applied to the ring electrode to eject unwanted ions in radial directions rather than toward a detector mounted along the z-axis. Also preferably, the trapping field has a DC component selected so that the trapping field has both a high frequency and low frequency cutoff, and is incapable of trapping ions with resonant frequency below the low frequency cutoff or above the high frequency cutoff. Application of the filtered noise signal to such a trapping field is functionally equivalent to filtration of the trapped ions through a notched bandpass filter having such high and low frequency cutoffs.

Abstract: This invention relates to a variable capacity pump controller for an industrial vehicle such as a shovel loader using a static hydraulic driving system. In a hydraulically driven vehicle equipped with a variable capacity hydraulic pump (P), the controller of the invention includes variable throttle devices (11, 13) (21, 24), (31, 35), (41, 46) which are disposed in pilot hydraulic circuits (10, 12), (20, 22), (30, 32), (40, 42) of a pump capacity control cylinder (C) for controlling the capacity hydraulic pump (P) and operate in such a manner as to change the operation speed of the pump capacity control cylinder (C) in accordance with the oil pressure of a main hydraulic circuit (S). According to this construction, the variable throttle device operates in such a manner as to open a check valve or a throttle valve in the pilot circuit of the pump capacity control cylinder when the hydraulic driving main circuit is at a high pressure.

Abstract: A method for performing mass analysis with dynamic mass resolution, in which a time-varying notch filtered broadband voltage signal (sometimes denoted as a time-varying "filtered noise" signal) is applied to a quadrupole mass filter. The time-varying filtered noise signal can consist of a rapid sequence of static (time-invariant) filtered noise signals, each defining a notch having a selected width and center location. The invention facilitates performance of mass analysis over a wide range of ion mass-to-charge ratios ("mass ranges") with adequate mass resolution. By appropriately choosing the width of each notch in the applied time-varying filtered noise, mass analysis can be performed with substantially constant mass separation over a wide mass range.

Abstract: The circular knitting machine, for manufacturing open fabric, has a thread clamping and cutting device arranged inside the needle cylinder and there is a thread engagement element which is controllably movable from the inside of the needle cylinder toward the outside, and vice versa, in the needle cylinder region which faces the dial, so as to engage the threads at the end of their knitting and so as to carry the threads to undergo the action of a presser element, and a cutting element.

Abstract: A linkage mechanism of a work implement installed in a loading vehicle such as a shovel-loader or the like, which is adapted to vertically move a bucket as held in a horizontal state without operating tilt-cylinder, while preserving the function of the Z-bar linkage in the prior art; in which linkage mechanism, when the distance from a pivotable support point (A) between a bucket (3) and a lift arm (1) to a pivotable support point (B) between the lift arm (1) and a bellcrank (5) is represented by (X) and the distance from the above-mentioned pivotable support point (B) to a pivotable support point (O) between the lift arm (1) and a vehicle body (9) is represented by (Y), they are preset so as to fulfil Y/X=.alpha., and also, first and second triangles (.DELTA.ABC, .DELTA.OBE) formed by the liftarm (1) and the bellcrank (5) on the vehicle body side and on the bucket side, as well as a third triangle (.DELTA.ADC) formed by a tilt rod (6) and the bucket (3) and a fourth triangle (.DELTA.

Abstract: A process for making coiled springs by intermittently rotating feed rollers with a wire held therebetween to feed the wire through a wire guide into engagement with a bending die at the outlet of the wire guide, thereby coiling the wire is provided, wherein as a follower of a cam unit moves toward the base circle of a pitch cam by the force of a spring, a pitch tool extends in an extending direction for pitching, and as the follower of the cam unit moves away from the base circle of the pitch cam against the force of the spring, the pitch tool is retracted in a retracting direction, whereby pitching is completed.

Abstract: A moving speed regulator for a hydraulically driven work implement capable of automatically controlling the lifting speed of a boom, and regulating the maximum lifting speed thereof in particular during earth and sand scooping operation, and also having for its object to enable the lifting speed of the boom when the boom is lifted to a position near its highest position. This regulator comprises a pilot circuit (10) having a pilot pump (P); a hydraulic circuit for driving a work implement, which includes a work implement operating valve (g) adapted to be actuated by a pilot fluid pressure from a hydraulic pilot valve (i.sub.

Abstract: The machine has needles accommodated in grooves defined in a needle-holder element. The needles are controllably movable along the related groove from an extraction position, in which the tip of the needles protrudes from the related groove to grip at least one thread fed by a thread guide, to a retracted position, in which the tip of the needles is retracted in the related groove to form a loop of knitting with the engaged thread, and vice versa. A plurality of sinkers are arranged alternated with the needles, each sinker being arranged laterally to a needle. Each of the sinkers has an end which is located proximate to the tip of the related needle in retracted position and has a tip directed toward the bottom of the related groove and curved toward the related needle. Actuation elements act on each sinker to insert their tip in the loop being formed on the related needle proximate to the retracted-position.

Abstract: An apparatus for securing containers on transport vehicles, especially ships, which comprises a connecting device, a first end of which is connectable to the containers, and a clamping device, a first end of which is equipped with a longitudinally adjustable threaded spindle and connectable to the transport vehicle and a second end of the connecting device comprising a number of fastening stops with which a second end of the clamping device is connectable to said connecting device in suitably chosen increments. The clamping device comprises a sliding carriage which receives the fastening stops and which is essentially freely movable in the axial direction of the clamping device.

Abstract: A soldering flux includes at least one acid component and at least one ester component. The acid component is selected from among dibasic carboxylic acid, hydroxycarboxylic acid and keto carboxylic acid. The ester component is selected from among phosphoric ester, phosphorous ester and hypophosphite ester.

Abstract: There is disclosed an apparatus which controls a variable delivery motor installed on a hydraulically operated vehicle in such a way that the maximum vehicle speed can be continuously varied without sacrificing the performance of the nonstep variable speed, hydraulically operated vehicle. The apparatus includes a hydraulic pump (1) connected with the variable delivery hydraulic motor (2) by main circuits (24, 25), a cylinder (31) that controls the motor (2), a control pump (3) delivering pilot pressure, and a vehicle speed limiter (122). Higher pressure is produced inside the main circuits. The limiter limits the minimum capacity of the motor (2), depending on the higher pressure and also on the pilot pressure acting on the cylinder (31).

Abstract: The machine has a needle holder element which has a plurality of grooves. Each groove accommodates at least one needle and one selector which faces, with one of its longitudinal ends, the base of the needle. Each needle has at least one heel which protrudes from the related groove of the needle holder element and is engageable in paths defined by cams which face the needle holder element, in order to actuate the needles with a reciprocating longitudinal motion along the grooves for forming knitting. Each needle is oscillable in a plane which is substantially parallel to the sides of the related groove for the passage of its heel from a position in which it is sunk in the groove to an extracted position in which it protrudes from the related groove.