baber/WOPTO huggingface dataset:
Patent GB-1294841-A (GB)
Inventor: BRUNNER RUSSELL K
IPC: G05B19/39
Filed: 1970-01-06
Abstract: 1294841 Digital control of position INFORMATION STORAGE SYSTEMS Inc 6 Jan 1970 [21 Jan 1969] 684/70 Headings G3R R69 R7R R9B R4 and R31X [Also in Division G1] In a position servo control system, e.g. for positioning the read/write heads on a magnetic disc store, having a coarse digital and fine analogue control, a position transducer delivers two alternating signals of the same frequency but different phase, successive intersections of which relate to successive increments of position, and the peak amplitudes of the signals are maintained constant by an automatic control circuit. A desired and previous head position are set in registers 14, 15, respectively, and the difference set in a counter 17 which drives via a D/A converter 18 a linear motor 12 positioning the read/write heads. A damping signal from tachogenerator 20 is added at 19. Transducer 13 gives two alternating signals, differing in phase by 180 degrees, successive intersections of which each decrease the counter 17 by 1. Detector 23 senses a zero signal from the D/A converter 18 to change switch 22 to effect fine analogue control and drive the heads to the exact intersection of the alternating signals. A 60 Hz signal is added at 21 to cause the heads to oscillate about the desired track. The transducer comprises a pair of optical gratings 28, 29, one fixed and the other coupled to the heads, and two photo-cells 26, 27 delivering the alternating signals. The sum of the signals is compared with a reference voltage Vr at gate 32 to control a current source 34 supplying the grating lamps 24, 25. During coarse control, switches 35, 41 down, the Va signal is inverted at 36 and gate 32 delivers the difference between the two alternating signals, Va, Vb to current controller 34 to control the ratio of the currents to the two lamps. In the fine control, switches 35, 41 up, the sum of the two alternating signals from gate 33 passes to demodulator 39 which receives a demodulating signal from saturated amplifier 38 fed by Va. The resulting signal, representing the difference between Va and Vb, controls the current ratio as before.
Patent GB-1295556-A (GB)
IPC: A61K31/135
Filed: 1971-04-30
Abstract: 1295556 N - Substituted norcamphanes KNOLL AG CHEMISCHE FABRIKEN 30 April 1971 [6 June 1970] 12396/71 Heading C2C Novel N-substituted norcamphanes II wherein R 1  is hydrogen or chlorine, R 2  is hydrogen or methyl, X is hydrogen or amino and Y and Z are similar or dissimilar and are hydrogen, chlorine or bromine and acid addition salts thereof may be prepared by reducing a compound I wherein O-E is a N=CH or NHCO group followed by optional N-methylation and/or salt formation. Pharmaceutical compositions of the compounds I show broncho-seoretolytic and anti-exudative activity when administered, orally, parenterally or by inhalation with the usual excipients
Patent GB-1295915-A (GB)
IPC: G01R29/02
Filed: 1970-01-19
Abstract: 1295915 Signal analyser OSOBOE KONSTRUKTORSKOE BJURO MINISTERSTVA GEOLOGII S S S R 19 Jan 1970 2467/70 Heading G1U An analyser for providing an indication when and for what duration the amplitude of a signal U falls within a set range f-h comprises a circuit 1 for deriving a single polarity output signal 2B having an amplitude indicative of the deviation of the signal from the mid-point g of the range, a pulse modulator with a high frequency negative feed back path in which the rise time of the pulses is modulated by the signal 2B, a differentiator and a level detector which supplies output pulses when the signal is within the range, the number of which is indicative of said duration. The output of the circuit 1 is applied to diode 7 which is connected across the high frequency negative feedback path 6 of the pulse modulator 2 fed from source 10 and shunts this feedback path during the time the signal is within the set range. The absence of negative feedback of the high frequency components of the pulse signals decreases the rise time of the pulses whereby a higher output voltage is obtained from differentiation circuit 5 sufficient to exceed the threshold of circuit 3.
Patent GB-1301376-A (GB)
IPC: C01G56/00
Filed: 1970-04-13
Abstract: 1301376 Electrolysing polyvalent metals ALLIED CHEMICAL CORP 13 April 1970 [14 April 1969] 17493/70 Heading C7B [Also in Division G6] The valency of one or more polyvalent metals, e.g. U, Pu, Np, is changed by passing an electric current through a dispersion of an organic solution comprising the metal(s) and preferably an alkyl phosphate and a hydrocarbon diluent, with an immiscible aqueous electrolyte solution, e.g. HNO 3  or NaNO 3  solution comprising hydrazine, in an electrolytic cell 1 separated by a porous membrane 4 into cathode and anode zones, the dispersion being in the cathode zone 3 if the valency is to be reduced and in the anode zone 2 is the valency is to be increased. The immiscible aqueous solution may be a preferential solvent for (one of) the metal(s) in a lower or higher valency state. The one or more metals of changed valency state such as Pu<SP>3+</SP> from Pu<SP>4</SP><SP>+</SP> or Np<SP>5</SP><SP>+</SP> from Np<SP>4+</SP> may be separated by transfer to the aqueous solution. The dispersion may be formed by agitation with a stirrer 12. The membrane 4 may be of alumina or permeable cationic or anionic exchange resin in a polyethylene or vinyl resin. e.g. a solution of uranyl (U<SP>6+</SP>) nitrate and tetravalent Pu nitrate in tributyl phosphate and kerosene (or dodecane or gasoline) may be charged to the cathode zone containing an aqueous solution of HNO 3  and hydrazine for separating Pu, or a solution of Pu<SP>4+</SP> and Np<SP>4+</SP> in the same solvent may be charged to the anode zone containing HNO 3  solution for separating Np. Organic solutions containing U and/or Pu and trace impurities, e.g. of Ru, Zr, and/or Nb, may be purified by forming a dispersion with HNO 3  solution in the anode zone. Other solvents for the organic solution include ketones e.g. hexone, or amines e.g. dioctylamine. The electrodes 5, 6 may be of Pt, Ta, Nb or C. The cell may be cooled and/or heated externally and internally. The aqueous solution separated from the dispersion drawn off may be recycled to the cell to increase the concentration of metal in the aqueous phase as described in Specification No. 1301375. For reducing the valency of Pu in the dispersion in the cathode zone, hexavalent U may be added as a redox agent.
Patent GB-1305082-A (GB)
IPC: G01N21/49
Filed: 1970-02-24
Abstract: 1305082 Measuring concentration photoelectrically AMERICAN STANDARD INC 24 Feb 1970 8744/70 Heading G1A The scattering characteristics of particles suspended in a fluid are investigated by directing a beam of plane polarized light at the fluid and measuring the degree of depolarization occurring as a result of multiple scattering by the particles. The invention can be applied to determining the concentrations of solid, liquid or gas particles in a fluid, the particle being identifiable by their having a different refractive index from that of the carrier medium. In the arrangement of Fig. 1, light from a mercury tungsten or xenon lamp 10 is filtered, if desired, at 11 to a required wavelength, and polarized by 12 in a direction perpendicular to the plane of the incident and scattered beams. Beams back scattered in two directions, preferably as near to 180 degrees with respect to the incident beam as possible, are investigated, one by an analyser and detector e. g. a photo-cell or photomultiplier to measure the intensity of light vibrating in the same direction as the incident polarized light and one by an analyser and detector to measure the light vibrating at right angles to the incident polarization. The first intensity E 11  is made up of light retaining its original polarization plus half of the depolarized light, while the other E 1  is the other half of the depolarized light. The ratio of these may be used to calculate the degree of depolarization - indicative of the particle concentration. Modifications An arrangement in which errors are avoided resulting from inequalities in the  angles # in Fig. 1, involves the use of a single scattered beam and a 90  rotation of the single analyser for two sequential measurements of E 11  and E 1 . Alternatively Fig. 4 (not shown), a quartz crystal (15) is additionally mounted in this path or for movement in and out of the path so as to rotate the plane of polarization before it reaches the analyser. When the crystal is out of the path an equivalent non-rotating element is moved in to its path to maintain the light path transmission constant. In a further arrangement, Fig. 5 (not shown), the scattered beam is split by a beam splitter, to form two beams which can be analysed as in Fig. 1. The polarizers used may be filters or prisms. In the two path arrangements, two wavelength filters may be arranged in the back scattered beams instead of one in the incident beam.
Patent GB-1316717-A (GB)
Title: Resilient mooring system
IPC: B63B21/50
Filed: 1971-11-23
Abstract: 1316717 Mooring vessels OFFSHORE CO 23 Nov 1971 54356/71 Heading B7S Appparatus for mooring a vessel, e.g. a floating drilling rig 10, comprises a first mooring line 20 which extends between the rig 10 and a buoy 18 and carries at its mid-point a sinker 26. A second mooring line 28 extends from the buoy 18 to an anchor 34. This arrangement prevents sudden increases in tension in the mooring lines. A number of mooring lines 20, 28 are preferably employed.
Patent GB-1321302-A (GB)
Title: Skid rail
IPC: F27D3/02
Filed: 1970-03-23
Abstract: 1321302 Skid rails for furnaces BRITISH IRON & STEEL RESEARCH ASSOCIATION 19 April 1971 [23 March 1970] 13923/70 Heading F4B Skid rails or walking beams for continuous reheating furnaces each comprise a triangular section water-cooled pipe 9 with channel section rails 10 welded thereto at 15 and formed of welded rail lengths each bearing a number of V-shaped grooves 20 spaced along its length. The grooves which are cast in the rail, extend across the bearing surface 11 and down the rail limbs 12 to holes 22. Layers of thermal insulating material 17 are fixed to the pipe 9 at points 18 by reinforcing mesh within it, the gap between the material 17 and the rail 10 being filled with refractory 19. The rail ends are chamfered and have recesses 25 so that on welding together they form grooves and associated holes. In a modification (Figs. 4-6) the underside of the rails are formed with grooves below the grooves 20 and the holes 22 are nearer the bottom of the limbs 12. The rail ends also do not coincide with a groove.
Patent GB-1324443-A (GB)
Title: Rotary pumps
IPC: F01C21/08
Filed: 1970-11-23
Abstract: 1324443 Rotary positive-displacement pumps BRITISH OXYGEN CO Ltd 15 Feb 1972 [23 Nov 1970] 55690/70 Heading F1F A vacuum pump or blower comprises a stator 2 with inlet and outlet ports 10, 12 and a rotor 4 with vanes 16 of self-lubricating material incorporating carbon fibres. The carbon fibres may be parallel to one another and in two or more plies, and are in a matrix of P.T.F.E., epoxy resin or other thermosetting or thermoplastic material. The fibres may extend radially of the rotor or parallel to its axis. A reinforcement, e.g. of expanded metal or plugs of metal, may be included in the vanes to increase their mass and/ or strength.
Patent GB-1330173-A (GB)
Title: Manufacture of iron oxide
IPC: C01G49/02
Filed: 1971-06-29
Abstract: 1330173 Iron oxide LAPORTE INDUSTRIES Ltd 29 June 1971 [11 July 1970] 33754/70 Heading C1A Iron oxide is prepared from iron halide (excluding the fluoride and probably the iodide) by (a) Reacting the iron halide in the presence of iron oxide with insufficient oxygen to give complete conversion of the iron to the ferric state in a first stage. (b) Withdrawing iron oxide and halogen separately from (a). (c) Passing the halogen to a second stage and contacting it with further iron oxide at a temperature low enough, e.g. 100‹ to 200‹ C. to condense the iron halide in the halogen stream. (d) Removing iron oxide contaminated with iron halide together from the second stage and separately removing pure halogen. (e) Passing the iron compounds from (d) to a third stage where they are reacted with an excess of oxygen to produce pure iron oxide which is withdrawn and the impure halogen which is passed with iron halide to (a). The halide may be carried by an inert gas stream and the reaction in each stage may be carried out under fluidized bed conditions. When the iron oxide product from the first stage is low in impurity iron halide it may be combined with the iron oxide product of the third stage or when the iron oxide from the first stage contains much iron halide it may be combined with the product iron oxide and iron halide of the second stage and then passed to the third stage.
Patent GB-1345695-A (GB)
Title: Portable sel-contained heating unit
IPC: F28D21/00
Filed: 1970-03-20
Abstract: 1345695 Air heaters GALT EQUIPMENT Ltd 19 April 1971 [20 March 1970] 13558/70 Headings F4U F4V and F4S A portable self-contained heating unit 13 is removably mounted in a transport container 10 and comprises a housing 21, an internal combustion engine 30 and fuel tank 31 within the housing, the engine having a combustion air intake 33 and an exhaust pipe 34 communicating with the exterior of the housing, a continuous primary air circuit 36, 37, 38 in heat exchanging relationship with the engine and exhaust pipe, a secondary air circuit (see arrows 25, 28), in heat exchagning relationship with the primary air circuit, for heating and recirculating air from the container, and a fan 32 driven by the engine to circulate air through the secondary air circuit. The secondary air circuit is in communication with the outside of the housing through fresh air inlet 47 and air outlet 48. Butterfly valves 48, 50 in the inlet 47 and the outlet 48, respectively are simultaneously opened and closed by automatic controls actuated by a thermostat 51 in the chamber 45.
Patent GB-1351046-A (GB)
Title: Alarm device for a lockable cabinet
IPC: G08B13/16
Filed: 1971-08-10
Abstract: 1351046 Transistor switching circuits SHOR ROCK DEVELOPMENTS Ltd 26 July 1972 [10 Aug 1971] 37442/71 Heading H3T [Also in Division G4] An alarm device for a cabinet comprises a sound or vibration pickup; an amplifier for the pickup output; a self-hold relay actuating an alarm device; a first delay rendering the device inoperative for a predetermined time after switching on; and a second delay which inhibits imitation of an alarm until the pickup has received signals for a predetermined time. Vibrations caused by tampering with the cabinet are picked up by microphone P and are fed via amplifier T1, T2 to a circuit D1, T3 which converts the signal to a train of pulses. The pulses are integrated by diode pump circuit D2, D3, C4, C5 until, after a predetermined delay set by VR, the signal at the base of T5 is sufficient to turn on Darlington pair T5, T6 to energize relay A. Contact A1 then closes locking in relay A and sounding alarm B. Contact A2 may operate a remote alarm. The device is placed inside the cabinet, and in order to allow the cabinet to be closed without initiating an alarm, circuit C6, R9, T4 is provided. On first switching on T4 conducts shorting out C5, thus preventing initiation of an alarm until C6 has charged sufficiently for T4 to turn off.
Patent GB-1353540-A (GB)
Title: Organo-metallic compounds
IPC: C08F4/42
Filed: 1971-12-08
Abstract: 1353540 Surface treated silica and alumina IMPERIAL CHEMICAL INDUSTRIES Ltd 30 Nov 1972 [8 Dec 1971 (2)] 56943/71 and 56944/71 Heading C1A [Also in Division C3] Inert matrix material such as silica or alumina which has a hydroxylic surface free from adsorbed water may be modified by reaction with organometallic compounds of the formula L r M(CH 2 SiR<SP>1</SP>R<SP>2</SP>R<SP>3</SP>) m , wherein M denotes a transition metal of Groups IIIa to VIa of the Periodic Table, m is an integer of from 1 to the prevailing valency of the metal M, L r  denotes the sum of any other incidental ligands L attached to the metal M, r is 0 or an integer, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> denote substituted or unsubstituted hydrocarbyl groups or hydrogen atoms, at least one of said groups having the formula -(CH 2 ) n -Y or wherein n is an integer of from 1 to 5 and Y denotes a group capable of donating electrons to the metal M. L is preferably tetrahydrofuran or acetylacetane, M is exemplified by Ti, Zr, V, Sc and Cr.
Patent GB-1353805-A (GB)
Title: Silver recovery
IPC: C22B11/00
Filed: 1971-08-20
Abstract: 1353805 Precipitating silver KODAK Ltd 17 Aug 1972 [20 Aug 1971] 39184/71 Heading C7D A process for the recovery of Ag from wash water resulting from washing fixed photographic material carrying residual fixer solution comprises contacting the wash water with steel wool to exchange the Ag contained in solution in the wash water with the Fe. A fixed film 20 passes in the direction of the arrows through wash tanks 10, 11. Tank 11 is supplied with water through inlet 12, the water passing into tank 10 through pipe 14 and into a cartridge 17 containing the steel wool where the exchange takes place. The photographic material is washed with 20-60 parts of water to each part of fixer solution carried by the material.
Patent GB-1354247-A (GB)
Title: Dynamoelectric machine
IPC: H02K9/20
Filed: 1972-05-30
Abstract: 1354247 Cooling dynamo-electric machines GENERAL ELECTRIC CO 30 May 1972 25238/72 Heading H2A In a dynamo-electric machine, e.g. a hermetically sealed induction motor 10, comprising a stator 14 having magnetic laminations 28 stacked to form a cylindrical bore in which is disposed a rotor 12 for electromagnetic interaction therewith, each lamination has a homogeneous circular yoke 30 from which radially inwardly extend a plurality of teeth 32 each having tapered sides 34 to produce parallel faces on adjacent teeth and which provide, extending the axial length of the stator, arcuately displaced slots in which are disposed machine windings, e.g. coils 35, and a triangularly shaped aperture 36 (as defined) situated entirely within each tooth, the aperture sides being parallel to adjacent sides of the associated tooth to provide a total flux carrying area at any radial location along legs formed between the aperture and the slots which is substantially equal to the flux carrying area of the tooth face 38 confronting the bore, and means are provided for passing a fluid refrigerant in an axial direction through the apertures. Triangular is defined as being not only a true triangle which terminates at the face 38 thereby dissecting the teeth, but also, as shown, a triangle with rounded internal angles, or a trapezium. In the embodiment shown, the means comprises an annular manifold 42 forming between itself and the motor housing 16 a refrigerant reservoir 44 containing, e.g. liquid refrigerant 11, and which supplies the apertures 36 via apertures 50A ... 50D whose diameters vary inversely with the liquid head, and the spaces between radial plates 46A, 46B some of which are apertured at 48. The liquid, flowing from a condenser 52, partially vapourizes in cooling the motor, before being returned to an evaporator 60 and a compressor 62 for recycling, typical pressures, flow rates, temperatures, and enthalpy being described in the Specification. In other embodiments, the rotor also has axial and radial cooling passages, and different coolant supply and discharge arrangements are disclosed; the supply of coolant may be responsive to control by a thermostat (76), Fig. 5, within the winding and turns (22A).
Patent IL-101195-A (IL)
Title: Processes for recovery of citric acid
IPC: B01J20/26
Filed: 1992-03-10
Abstract: Described are preferred processes for recovering citric acid from a medium in which it is contained. The citric acid is recovered both effectively and in a form which is readily purifiable. In one preferred process, the citric acid-containing medium is contacted with a solid-phase free base resin having tertiary amine groups to adsorb the citric acid. The citric acid is then desorbed by displacement with a stronger acid, and a citric acid-containing fraction is collected substantially free from contamination by the stronger acid. In another preferred process, a citric acid-containing medium is contacted with a solid-phase polymer having pyridine functions to adsorb citric acid, the contacting being at a temperature below about 40  DEG C. Adsorbed citric acid is then desorbed with hot H2O at a temperature of at least about 75  DEG C. Unnecessary impurities such as those arising from the use of organic solvent or throughput inorganic acid desorbents are thereby avoided while at the same time achieving a commercially attractive recovery of the citric acid. Additional preferred modes and process features are also described.
Patent IL-103507-A (IL)
Title: Water soluble package
Inventor: EDWARDS DAVID
IPC: B65D81/34
Filed: 1992-10-22
Abstract: A package containing a toxic composition, e.g. a pesticidal composition, which package comprises a first sheet (1) of non-planar water soluble or water dispersible material defining a concavity enclosing the composition, a second sheet (6) of water soluble or water dispersible material sealed to the first sheet by a continuous closed water soluble or water dispersible heat seal, and a third sheet (4) between the first and second sheets and sealed thereto by a water soluble or water dispersible seal (7) to divide the package into two compartments and a process for making the package are described.
[WO9308095A1]
Patent IL-108836-A (IL)
Title: C9 taxane derivatives and pharmaceutical compositions containing them
IPC: C07D409/12
Filed: 1994-03-03
Abstract: Taxane derivatives, useful as anti-tumour and anti-leukemia agents, having alternative C9 substituents wherein the substituents are selected from a group consisting of hydrogen, hydroxy, protected hydroxy and acyloxy.
Patent IL-115143-A (IL)
Title: Method and apparatus for digital telephony
IPC: H04J3/00
Filed: 1995-09-01
Abstract: In transmission between a base station and a subscriber unit, system control signals are sent in time slots within fixed length time frames. The system control signals are fragmented, each fragment being sent in a different time slot of a frame.
[WO9608893A2]
Patent IL-122810-A (IL)
Title: Apparatus for and method of nuclear quadrupole testing a sample
IPC: G01N24/08
Filed: 1996-07-11
Abstract: Apparatus for Nuclear Quadrupole Resonance testing a remote sample containing a given species of quadrupolar nucleus, comprising: at least one probe (112) having a given maximum cross- sectional dimension; means (102) for applying excitation to the probe or at least one of the probes to excite nuclear quadrupole resonance for a selection range of distance of the sample from the or one such probe, the selected range being at least one tenth of the given maximum dimension of the probe or said one such probe, the apparatus being adapted to produce a non-uniform field over the selected range; and means (106) for detecting the resonance response signal from the sample via the probe or at least one of the probes; the excitation being such as would generate non-zero resonance response signals at all distances within the selected range. 2688 ו' בתשרי התשס" ג - September 12, 2002