baber/WOPTO huggingface dataset:
Patent GB-1126646-A (GB)
Title: Improvements in and relating to servo balance circuits
IPC: H01F19/00
Filed: 1966-10-24
Abstract: 1,126,646. Measuring weight electrically; potentiometric measurement. RELIANCE ELECTRIC & ENG. CO. Oct. 24, 1966 [Feb. 3, 1966], No.47647/66. Headings G1N and G1U. In a self balancing circuit for measuring weight, a balancing motor 92 is driven by an amplifier 91 which receives a first signal from a strain gauge bridge 40, and a second signal from a rebalance potentiometer 89 energized by a transformer 20; and there is provided a potentiometer 52 which is connected at 43 to the strain gauge bridge output, and to the transformer shield 23, to compensate for capacitance between the primary P21 of the transformer 20 and its secondaries. The wiper 87 of the potentiometer 89 is driven by the motor, the voltage across the potentiometer 89 being derived from two range-setting tapped potentiometers 67, 78, two zero-setting potentiometers 57, 60, and a quadrature adjusting potentiometer 50 which compensates for the capacitance between the shield 23 and the various secondaries S24, S25, S26 of the transformer 29. Switch 54 is initially closed to short out the strain gauge bridge 40, and a switch 51 is opened. The wiper 53 of the potentiometer 52 is permanently connected to the transformer shield 23 and is adjusted until there is no quadrature signal in the output of the amplifier 91. The switches 51, 54 are then closed and opened respectively, and the potentiometer 50 is adjusted until again there is no quadrature signal in the amplifier output. The weighing operation then proceeds until the wiper 87 of the rebalance potentiometer 89 has completed one traverse of the potentiometer, whereupon switch contact 101 or 102 is automatically operated causing scale changing circuiting 94 to step ganged switches 36, 80 by one position on the range potentiometers 67, 68, this being registered at 99. A second pair of ganged switches 37, 79 select one of three positions according to whether the strain gauge bridge output has a so-called positive, negative or straight line function.
Patent GB-983894-A (GB)
Title: Apparatus for extracting juice from fruit or vegetables
IPC: B30B9/12
Filed: 1962-12-18
Abstract: 983,894. Extracting fruit &c. juices. PERUHAG PATENT-ERWIRKUNGS-UND HANDELS G.m.b.H. Dec. 18, 1962 [Dec. 19, 1961], No. 47846/62. Heading A4C. An apparatus for extracting juice from fruit or vegetables includes a housing 1 for a rotary worm conveyer 5 carried on one end of a body member 4 and a sieve 16 arranged between the other end of the body member 4 and a part 12 of the housing 1 to define an inner 19 and an outer 13 annular space, the inner space 19 having open ends and the outer space 13 having closed ends. In operation the body member 4 is rotated at controllable speed by a detachable motor 2 and fruit etc., is fed via a hopper 11 to be comminuted and conveyed by the toothed worm 5 to within the sieve 16 where juice passes with the assistance of centrifugal force through the sieve 16 to the outer annular space 13 to flow through an outlet 20. The juiceless residue is passed through the open ended inner annular space 19 to be directed by ejector plates 10, secured to the body member 4, towards an outlet 21 in a cover 14. The outer space 13 is closed at one end by an unperforated portion 16b of the sieve 16 extending beyond the means 17, 18 for fixing the sieve 16 to the body member 4 and at the other end by an annular flange 15 on the cover 14. Alternatively the flange 15 may be omitted and the end closure is formed by an out turned, unperforation portion of the sieve 16.
Patent GB-1520423-A (GB)
Title: Cationic azo dyestuffs
IPC: C09B44/04
Filed: 1974-11-07
Abstract: Novel azo dyes are free from sulpho and carboxyl groups. They correspond to the formula <IMAGE> in which D, R<1>, R<2>, R<3>, Q, X, Y and n have the meanings given in Patent Claim 1. The azo dyes of formula I are prepared by a process wherein     1a) an amine of formula D-NH2 is diazotised and 1b) the resulting diazonium salt is coupled, in an acid medium, with an appropriate coupling component, or   2a) an amine of formula D-NH2 is diazotised, 2b) the resulting diazonium salt is coupled with an appropriate coupling component in which, however, the group -Q<(+)>1 DIVIDED nX<n-> is replaced by R<4> and 2c) the resulting compound is reacted with a tertiary heterocyclic base to give a compound of formula I, wherein Q has the meaning given in Patent Claim 7.  R<4> in this context has the meaning given in Patent Claim 7. The new dyes are suitable for dyeing or printing polymers and copolymers of acrylonitrile and dicyanoethylene and also for dyeing or printing acid-modified polyesters and polyamides.
Patent GB-1119056-A (GB)
Title: Radio communication system
Inventor: JACOBSEN BENT BULOW
IPC: H04B1/54
Filed: 1964-11-27
Abstract: 1,119,056. Radio signalling. STANDARD TELEPHONES & CABLES Ltd. 26 Nov., 1965 [27 Nov., 1964], No. 48246/64. Heading H4L. In a radio-communication system, e.g. a satellite system, subject to Doppler .effect, means are provided at a terminal station for generating a pilot frequency, and for transmitting and receiving the pilot frequency looped over the transmission path via a remote station, and variable delay and storage means controlled by the difference frequency between the pilot signal as transmitted and received compensate for the Doppler effect. As shown in Fig. 1, a frequency division multiplex baseband signal f s  at station A is sampled at frequency S 1 , coded and fed to a p.c.m. store S. Frequency S 1  = 2n P 1  is supplied as the write-in frequency to the store S via frequency multiplier X 1  from an oscillator OP generating the pilot frequency P 1 . The signal stored at S is then converted back to the baseband frequency using a read-out frequency S 2  which is controlled in accordance with the Doppler shift and is slightly lower than S 1  if the satellite path is shortening and slightly higher if the path is increasing. The pilot frequency P 1  is combined with the baseband signal at F 1  and after frequency-modulation at Fm, the resulting radio signal is supplied via the satellite to station B. The pilot frequency received at station B is modified by the Doppler effect and is selected by filter F 2  and fed back via filter F 3  for transmission back to station A, during which it is further modified approximately to the same extent. At station A a frequency 3P 1  is supplied to modulator M 1  via multiplier X 2  from oscillator OP, together with the pilot signal from filter F 4  and the lower sideband is extracted and multiplied by n at X 3  and applied as the read-out frequency S 2  to the store S. The receiver includes a similar p.c.m. equipment and store R and the write-in frequency for this store is derived from the upper sideband provided by a modulator M 2  from the received pilot signal and the frequency P 1  from oscillator OP which is multiplied by n at X 4 . The readout frequency for store R is 2nP 1 , the same as the write-in frequency for the store S. In an alternative arrangement, Fig. 2 (not shown), each terminal station transmits a pilot signal which is looped back at the satellite to the sending station. In this system the write-in frequencies of the stores R and S are varied and the read-out frequencies fixed. Further compensation may be effected by a secondary pilot frequency fed into the input of store S which on return is filtered out of the output of store R and via a 90 degrees phase shifter is compared with the original secondary pilot signal to control known means to modify the read-out frequency of store S in Fig. 1 or the write-in frequency of the equivalent store in Fig. 2. A method of setting up the equipment initially, by forming a local loop at the transmitter-receiver also is described.
Patent GB-985502-A (GB)
Title: Ramming mix
IPC: C04B35/12
Filed: 1962-12-27
Abstract: A ramming mix free from free line comprises 60-90% of a refractory aggregate of particle size -4, + 65 Tyler, and 40-10% of fine calcium aluminate of at least 75% purity (defined) and not containing more than 2% of iron or iron oxide.  When the aluminate is of at least 99% purity the proportions are 68-92.5% aggregate and 32-7.5% aluminate. Aggregates specified are alumina including bauxite, chrome ore, magnesite, zirconia and olivine.  Fire clay as plasticizer can also be included.  Water is added for ramming.
Patent GB-999114-A (GB)
Title: Height increasing devices for shoes
IPC: A43B21/32
Filed: 1962-12-27
Abstract: 999,114. Height-increasing heel inserts for shoes. C. C. VASSAR. Dec. 27, 1962 [Dec. 26, 1961], No. 48621/62. Heading A3B. An insert for a shoe comprises an elevating element 4 of felt or the like having a substantially plane top surface 5 and having its greatest depth at its rear with only slight variation in depth for a short distance therefrom, as shown at 6, from which point its bottom surface tapers upwards, as at 7, to meet the top surface 5. A foam rubber or other resilient cushioning pad 8 with a fabric covering 10 is cemented to the top surface and a front marginal part 9 is bevelled and cemented to a corresponding margin of a ribbed flexible non-slip sheet 11 cemented to the bottom surface of the element 4. The weight of the heel of the wearer of a shoe fitted with the insert causes the forward portion of the insert to be tilted upwardly into close engagement with the foot so tending to provide a socket for the heel of the wearer and prevent forward movement of the foot in the shoe.
Patent GB-1092409-A (GB)
Title: Improvements in or relating to vertically polarized antenna arrays
IPC: H01Q11/10
Filed: 1965-11-16
Abstract: 1,092,409. Aerials. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Nov. 16, 1965 [Nov. 17, 1964], No. 48722/65. Heading H4A. A vertically polarized aerial array comprises at least one pair 5, 6 of log-periodic aerials, each aerial having its radiating elements 7 contained substantially in a vertical plane. The aerials are disposed in V-formation, with their shortest element adjacent, the angle between them being such that the distance between corresponding elements of both aerials is 0.4# to 0.8#, where # = the resonance wavelength of those elements. The aerials are suspended from ropes 4 between the tops of a common short mast 3 and separate high masts 3. The radiating elements 7 are dipoles, each half of which is in the form of a narrow triangle. A common feeder 15 supplies both aerials through a broadband 3dB directional coupler 11 and a reversing switch 10. The coupler is of the four-port quarter- or three-quarter wavelength type, the input port being connected to the feeder 15, the output ports to the aerials 5, 6 via the reversing switch 10, and the fourth port to a load resistor 12 for absorbing any reflected energy. The lengths of the leads 16, 17 between the coupler and the switch are made equal as are the length of the leads 23, 24 between the switch and the aerials. There is a phase difference of 90 degrees between the two outputs from the coupler and, in consequence, the main lobe of the radiation pattern of the array is swivelled in azimuth from the plane of symmetry of the array (Fig. 5, not shown). The swivelling can be made to be to the other side of the said plane by operation of the reversing switch 10, and it is stated that the effective aperture of the aerial is thereby increased. In a modification, five pairs of arrays are arranged in a five-pointed star (Fig. 6, not shown), so that their radiation patterns, including swivelling, cover all azimuths. A selector switch (22) is provided whereby up to five transmitters may be operated simultaneously.
Patent GB-1373501-A (GB)
Title: Composite insert for gas-shielded welding torch nozzle
IPC: C04B35/83
Filed: 1971-10-21
Abstract: 1373501 Welding by fusion PFIZER Inc 21 Oct 1971 [8 Jan 1971] 49081/71 Heading B3R [Also in Division H5] In a gas-shielded consumable or non-consumable electrode arc-welding torch, a tubular shielding gas nozzle surrounding the electrode has a lining insert 36 comprising a tubular base coated or impregnated with pyrolytic carbon, whereby build-up of weld spatter in said nozzle is reduced and removal of said spatter is facilitated. The insert 36 may comprise: Example I, a polycrystalline graphite cylinder machined from rod stock and coated with pyrolytic graphite using flowing methane at 2100‹ C. at 5 mm. Hg. abs.; Example II, a carbonized rayon needled felt or cloth impregnated with pyrolytic carbon, such an insert being produced by processing sheets of the carbonized felt using flowing methane at 1100‹ C. at 5mm. Hg. abs. for 20 hours rolling and machining the sheets into right cylinder configuration, and then further processing under the same conditions for 60 hours, or by pyrolytic carbon impregnating initially tubular formed felt; or Example III the impregnated felt of Example II coated with pyrolytic graphite by the process of Example I.  As shown, an Example I insert is secured in the nozzle 30, e.g. of copper, by clamping, swaging, brazing, cementing or press and shrink fitting. The nozzle 30 is removably screwthreaded into a heat sink nose 24 of a consumable wire electrode torch. In Figs. 3, 4 (not shown), an Example III insert is provided in a nozzle which is retained in the torch nose by a collet chuck comprising a contractable elastomeric 0-ring. The torches may be for TIG, MIG or CO 2 - shielded welding. Gases referred to are CO 2 , A.
Patent GB-1331486-A (GB)
Title: Hydroxyarlypolymethylenesulphonium monomers polymers and surface coatings therefrom
IPC: C08G75/12
Filed: 1970-10-15
Abstract: 1331486 Cyclic sulphonium compounds DOW CHEMICAL CORP 15 Oct 1970 [15 Oct 1969 (2)] 49125/70 Heading C2C [Also in Divisions B2 and C3] The invention comprises compounds (I) and (II), where R is hydrogen, chlorine or bromine or hydroxy or C 1-4  alkoxy; R<SP>1</SP> is hydrogen, chlorine or bromine or C 1-4  alkyl; a is 1 or 2; each S atom is ortho or para to the phenolic oxygen atom; each of A and B is -CH 2 - or -CHR<SP>1</SP>-; and c is 1 or 2; Z is -CR<SP>11</SP> 2 -, -O-, -S-, -(C m H 2m )O- or -OCO(C n H 2n )COO-, where R<SP>11</SP> is hydrogen or C 1-4  alkyl, m is an integer of 1-6, n is 0 or an integer of 1-6; x+y is 0 or an integer of 1-20 and X- is a non-basic inorganic anion or a compound of Formulµ (V) to (IX). The compounds of the invention are made by reacting an appropriately substituted phenol having an active hydrogen atom ortho or para to the hydroxy group with the appropriate cyclic sulphide in the presence of chlorine or with the appropriate cyclic sulphoxide in the presence of HCl to give the sulphonium chloride or by reqcting an alkylthiophenol with a 1,4- or 1,5-dihaloalkane and if desired converting the sulting salt into another salt. Halogen substituted compounds (I) may be prepared by direct halogenation of the corresponding unsubstituted compounds. The compounds (II) may be prepared by known methods from the compounds (I).
Patent GB-1192948-A (GB)
Title: An Improved Instrument for the Measurement of Electrolytic Conductivity
Inventor: POCOCK SYDNEY NORMAN
IPC: G01N27/06
Filed: 1967-10-30
Abstract: 1,192,948. Measuring electrolyt conductivity. S.N. POCOCK. Oct. 29, 1968. [Oct. 30, 1967], No. 49232/67. Heading G1U. An instrument for measuring electrolyt conductivity incorporates a cell or cells defining two or more conductive paths in the electrolyte, these paths being associated with two or more capacitors and an amplifier, all connected to function as an RC tuned oscillator such that the conductive paths form the frequency determining resistive elements of the oscillator, the generated frequency being proportional to the conductivity of the electrolyte. The particular oscillator network may be a Wein bridge, twin T, bridged T, Phase shift etc. Shown in the drawing is a Wein bridge network, with two resistors 6, 7 and two capacitors 8, 9. The cell 5 is concentric about an inner electrode 1. Two conductive paths, one between the electrode 1 and the perforated electrode 2 and the other between the electrode 2 and electrode 3 are defined within it. (They are represented by the equivalent resistors 6, 7). The remaining arms of the Wein bridge are formed by resistors 11, 12: 11 being a negative temperature co-efficient resistor for amplitude control. The output of the wide band amplifier 10 is frequency measured at point 13 to indicate the conductivity of the electrolyte. For further compensation of temperature errors, the capacitors 8, 9 may be in thermal contact with the electrolyte and have temperature co-efficients opposite that of the electrolyte.
Patent GB-1409561-A (GB)
Title: Suction sweeper
IPC: A47L5/30
Filed: 1972-10-25
Abstract: 1409561 Suction sweepers SIEMENS ELECTROGERATE GmbH 25 Oct 1972 [25 Oct 1971] 49297/72 Heading A4F A suction sweeper comprises a front wall which extends substantially over the whole width of the sweeper and constitutes the forwardmost substantial part of the sweeper, a duct 4 having a downwardly extending portion including the front wall and rearwardly extending side walls which extend downwardly less far than the front wall, this portion defining a suction aperture 3 which extends substantially across the whole width of the sweeper and is operative to produce a suction at right angles to the operative direction of movement of the sweeper, and a brush roller 1 disposed behind and outside the duct 4. The pressure between the roller 1 and the surface being cleaned may be varied by increasing the pressure on a rocker arm 7 supporting the roller 1 by means of a spring 8, the compressed length of which may be measured against a scale so as to provide an indication of the sweeper pressure. Alternatively, the tension of a belt driving the roller 1 may be monitor to provide the pressure indication. The position of a movable shield determines the suction at the nozzle 3. The roller bristles may vary in length and thickness to provide further variation of roller pressure.
Patent GB-1423583-A (GB)
Title: Electrochemical storage cells having organic electrolytes
IPC: H01M10/0569
Filed: 1973-10-24
Abstract: 1423583 Cell with organic electrolyte SAFTSOC DES ACCUMULATEURS FIXES ET DE TRACTION 24 Oct 1973 [30 Oct 1972] 49408/73 Heading H1B A storage cell with an anode containing lithium has the solvent of its electrolyte constituted by a mixture of a cyclic ether and a non- saturated cyclic ester. Examples of the cyclic ether are:- tetrahydrofuran, dioxolane and propylene oxide. The example of the cyclic ester is vinylene carbonate. The electrolyte solute is lithium perchlorate. In one example of cell the cathode comprises a mixture of silver chromate, graphite and PTFE. In another example the cathode comprises copper oxide.
Patent GB-1196536-A (GB)
Title: Molding Machine with Press Unit and Control System therefor
Inventor: KOVACS LLOYD
IPC: B29C49/56
Filed: 1968-10-21
Abstract: 1,196,536. Fluid-operable mould halves. MIDLAND ROSS CORP. 21 Oct., 1968 [26 Oct., 1967], No. 49756/68. Heading B5A. [Also in Division Fl] A moulding machine, particularly a blowmoulding machine, comprises a pair of mutually reciprocable platens each carrying one of a pair of mould halves, the platens being reciprocated by fluid cylinders arranged parallel and coextensively on an end frame of the machine. In the embodiment described, a duplex pump operates to open and close the mould halves, closure being effected in two stages: firstly, rapidly by means of the low pressure side of the pump and finally, more slowly by means of the high pressure side thereof. The extruder may have a flow diverting valve operated by part of the fluid circuit in timed relation to mould opening and closure &c. so as to divert extrudate to different die-heads and corresponding moulds accordingly.
Patent GB-1278464-A (GB)
Title: Process and apparatus for the preparation of maleic anhydride
IPC: C07C51/215
Filed: 1969-10-10
Abstract: 1278464 Fluidised bed catalytic reactor; controlling chemical reaction MITSUBISHI KASEI KOGYO KK 10 Oct 1969 [15 Oct 1968 18 Oct 1968 1 May 1969] 49794/69 Headings B1F and B1X [Also in Division C2] A fluidized bed reactor having a plurality of unit fluidized beds comprises a cylindrical vessel 1, a distributing plate 2 for uniformly distributing the reactants supplied through lines 11 and 12, a plurality of horizontal partition walls in the form of plates 3, 4, 5, 6, 7 and 8, cooling pipes 9 and 10 and a discharge pipe 13. The horizontal partition walls are provided with a plurality of openings, the size and configuration of which permit free flow of the reaction gas and catalyst. The first unit fluidized bed immediately above plate 2 is preferably made twice as large so that of the second unit fluidized bed above plate 3, and the third bed above plate 4. The spacial volumes of the fourth, fifth and sixth unit fluidized beds are advantageously a quarter of the first bed. The seventh bed is made much larger in order to minimize the discharge of catalyst particles from the vessel, and said particles may be collected and recovered by incorporating a cyclone separator into the final fluidized bed. When the apparatus is used for the reaction of unsaturated hydrocarbons with oxygen, the oxygen content of the affluent stream may be measured by means 14 and valve 12A on the oxygen-containing gas input line 12 adjusted in response to signals from means 14.
Patent GB-1451433-A (GB)
Title: Penstocks
IPC: E02B7/54
Filed: 1972-10-28
Abstract: 1451433 Sluice gates HAM BAKER & CO Ltd 28 Jan 1974 [28 Oct 1972] 49801/72 Heading EIH  In a sluice gate or penstock the door 11 is guided for rectilineal movement in opposite directions between its open and closed positions. The sealing faces 15 on the door and the sealing faces 16 on the frame are arranged so that sealing engagement takes place between them in a plane inclined to the direction of movement of the door and occurs only at or near the end of the closing movement. For Figure see next column
Patent GB-1320737-A (GB)
Title: Transmission systems for motor vehicles
IPC: F16H47/06
Filed: 1970-10-20
Abstract: 1320737 Clutch combinations ZAHNRADFABRIK FRIEDRICHSHAFEN AG 20 Oct 1970 [18 Nov 1969] 49806/70 Heading F2C A transmission comprising a torque converter 5 followed by a change speed gear 9 has a lockup clutch 6 so controlled by a valve 2, set in positions A-D according to the speeds selected, that the lock-up clutch is actuated except in reverse and the two lowest forward speeds then giving direct drive through the gear 9. In order that the engine can be used for braking when the converter 5 is operative a one-way clutch 7 is provided between the engine shaft 5a or the part of the clutch 6 connected to the impeller P of the converter 5 and turbine shaft 5b.
Patent GB-1504330-A (GB)
Title: Strip for framing and fastening glazing panes
IPC: E06B3/54
Filed: 1975-12-09
Abstract: 1504330 Double glazing SCHLEGEL GmbH 9 Dec 1975 [13 Dec 1974] 50430/75 Heading E1R A frame member for converting an existing single-glazed window to doubleglazing is of substantially L-shaped crosssection before use (Fig. 1 not shown) and comprises a flange 1, 2 which with web 4 and flange 3 forms a channel for receiving pane 5 and a flange 6, 7 which has a softer hinge portion 10 and a catch 8. Holes 12 are drilled in flange 1 and screws 13 inserted into the existing frame 14 using a template (17), the flange 6, 7 is then bent over at 10 so that the catch 8 engages under the screw head and to the web 4 by the detent arrangement 23, 24. The hinge portion 10 may be replaced by a region of reduced thickness near to flange 1 (Fig. 3 not shown).