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    • 9. 发明专利
    • CONTROL MECHANISM FOR CONTINUOUS TRANSPORT DEVICE FOR THE SHEETS
    • CS187586B1
    • 1979-02-28
    • CS151775
    • 1975-03-06
    • FICHTE FRANKPAUL WOLFGANG
    • FICHTE FRANKPAUL WOLFGANG
    • B65H1/14B65H1/18B65H1/30B65H3/08B65H3/48B65H43/00
    • The stack of sheets is moved towards the distributor at a control velocity corresponding to the distributor operation. If the stack in the operative vicinity of the distributor becomes too low, indicating too slow a stack advance, a mechanical sensor sensing the position of the top of the stack rotates to a position interrupting the signal furnished by the first and second inductive input signal generator. The interruption of the signal results in the furnishing of a second sensor output signal which, at a time determined by a synchronizing signal sets a monostable multivibrator whose output then energizes a relay which in turn applies voltage to a winding of a servomotor moving the arm of a potentiometer in a direction for increasing the speed of advance of the stack. Similarly, when the stack is too high, neither of the signals from the inductive generators is interrupted and a third sensor output signal generated in response to the presence of the two signals similarly causes the servomotor to drive the potentiometer in the opposite direction thereby retarding the speed of transport of the support means carrying the stack. Since the feeder system has first and second support means so that sheets are continuously available to the distributor means, the system also comprises a number of control switches and an additional sensor for connecting the different support means to corresponding motors and for switching the first support means from an induction motor effecting a rapid transport to a DC motor effecting the controlled transport when the stack is within a predetermined distance of the distributor means.
    • 10. 发明专利
    • Improved arrangements for separating or separately detecting charged particles of different specific charges
    • GB773689A
    • 1957-05-01
    • GB3673854
    • 1954-12-20
    • PAUL WOLFGANG
    • H01J49/42
    • 773,689. Mass spectrometers. PAUL, W. Dec. 20, 1954 [Dec. 23, 1953], No. 36738/54. Class 39(1). A high-frequency mass spectrometer has an electric field of potential ° = f(t). (alphax +#y - alphaz ) and ions either oscillate with a limited amplitude (stable paths) or oscillate with increasing amplitude (unstable paths) until they hit the electrodes depending on their specific charges. The separation is determined by varying at least one of the quantities, amplitude frequency and shape of the voltage f(t). The electrodes are hyperbolic sheets, Fig. 1, or rods ; circular rods are an adequate approximation. A bank of electrodes, Fig. 10, may be used. A D.C. voltage is also applied so that f(t) = Uo + V cos wt and the ratio Uo/V determines a stable range of ion paths. The ions are projected through the field from a conventional ion source, or, Fig. 12, created within the field. Electrons from a filament 17 are projected into the field through one of the electrodes B. Electrodes A, B, B are one and two-part hyperboloids of revolution. The ions are detected either as a lagging load in the A.C. circuit if in a stable range, or as a non-reactive load if in an unstable range. By superimposing an additional A.C. voltage of small amplitude and half the frequency, ions of a particular mass which resonate with the additional field may be separated out. The ion paths are discussed with reference to the differential equations of motion which are of Mathieu type.