baber/WOPTO huggingface dataset:
Patent GB-1454455-A (GB)
Title: Motor truck
IPC: B60R19/00
Filed: 1974-08-30
Abstract: 1454455 Lorries; reducing effects of collisions MITSUBISHI JIDOSHA KOGYO KK 30 Aug 1974 38127/74 Heading B7B The load carrying body of a lorry is related to the chassis in such a way that in impacts of sufficient strength longitudinal movement of the body relative to the chassis occurs and causes vertical movement relative to the chassis. At least part of the kinetic energy of the body is thus absorbed during the relative movement. As illustrated, the body 4 (which may carry a bumper to receive rear impacts) is connected to the chassis 3 by plates 78 and U-bolts 41. If a collision causes sufficient relative force between the chassis and the body, the plates 78 shear and, as the body moves longitudinally, it also rises due to the interaction of cooperating edges of pairs of plates 6. As the body 4 rises, the U- bolts 41, after initially moving against Belleville washers, are stretched so that further energy is absorbed. Reaction to the upward movement of the body 4 forces the chassis down so that wheel adhesion is increased. The upward movement is limited by frames 7 which each surround a longitudinal body member 7 and the chassis 3. When upward movement commences, body bolts 76 shear and the frames 75 move upwardly with the body until their lower ends strike the chassis. The cooperating plates which produce the upward movement need not have rectilinear edges. They may have edges producing initially no upward movement but then giving increasing upward movement as displacement of the body continues, Figs. 13-15 (not shown). In this case there may be a layer of frictional material between the body and the chassis to absorb the body's kinetic energy during its initial horizontal movement. In another arrangement, Figs. 16 and 17 (not shown), a bolt on the body passes through a plate fixed to the chassis. A slot in the plate which is narrower than the bolt diameter leads forwardly and upwardly for the bolt hole. During relative movement of the body and chassis, the slot thus causes the required upward movement, and the distortion of its edges by the bolt absorbs energy. Each U-bolt may be replaced by a pair of parallel straight bolts, Figs. 6-11 (not shown). One end region of each bolt may be thickened so that it normally acts as a bolt head. However, as the body and chassis move apart, the thickened region will be extruded through the opening which accommodated the bolt. In a further arrangement (not shown), the energy absorbing connections between the body and chassis are reversed to cope with collisions in which the body tends to move rearwardly relative to the chassis.
Patent GB-1499388-A (GB)
Title: Error correction for quadrature demodulator in radar system
IPC: G01S13/28
Filed: 1975-09-17
Abstract: 1499388 Radar RAYTHEON CO 17 Sept 1975 [3 Oct 1974] 38250/75 Heading H4D A radar system, in particular a CHIRP radar system comprising a quadrature demodulator, includes means for correcting errors caused by imbalances between the two channels of the quadrature demodulator, in which a test signal is periodically fed through the quadrature demodulator and the frequency spectrum of the test signal after passing through the two channels of the demodulator is determined, e.g. by Fourier transform. Correction coefficients in accordance with the determined frequency spectrum are derived and applied to correct output signals of the two channels of the quadrature demodulator from radar echo signals during operation of the radar system. When applied to a CHIRP radar, transmitting linearly frequency modulated pulses, "M" test signals are successively applied to the quadrature demodulator (corresponding to the same range interval) such "M" test signals being analogous to echoes of the linear frequency modulated signals having successive Doppler phase shifts. An "N" point Fourier transform is performed on each successive one of the test signals (as it is on the real echo signals) and the resulting "N" Fourier coefficients are stored in a comer turning memory at "M" successive rows therein. The "M" Fourier coefficients corresponding to each one of the columnal situated "N" point Fourier transforms are successively read out of the corner turning memory to give, in the absence of channel imbalance, a single Doppler frequency signal and the "M" Fourier coefficients are subjected to an "M" point Fourier transform to derive "N" frequency spectra, each one of such spectra being representative of the frequency spectrum at a different one of "N" frequencies within the frequency band of the "M" test signals. Correction coefficients representative of the imbalances in the quadrature demodulator at each one of "N" different frequencies within the frequency spectrum of the test signals are derived from the "N" frequency spectra using the complex amplitude of the "image" Doppler frequency (as against the ideal single Doppler frequency) and such coefficients are stored. The complex conjugate of the Fourier transform of the transmitted CHIRP signal is produced and multiplied, frequency component by component, by corresponding stored coefficients. The resultant compensated complex conjugate signal is stored, for "matched filtering" multiplication with the Fourier transform of the subsequent echo signals. The resultant compressed compensated signal is reconverted to the time domain by an inverse Fourier transform.
Patent GB-1112133-A (GB)
Title: Improvements in or relating to combustion chambers
IPC: F23R3/38
Filed: 1965-09-08
Abstract: 1,112,133. Air supply to combustion chambers. J. SZYDLOWSKI. 8 Sept., 1985 [16 Sept., 1964], No. 38346/65. Heading F4B. [Also in Division F1] Combustion air is supplied to the interior of a gas turbine, or other, combustion chamber through holes 3 some of which have swaged and brazed therein hollow rivets 4 each having a Venturi bore 8 shaped by the swaging operation. the rivets projecting considerably from the combustion chamber wall 1 into the chamber interior. The head 5 of each rivet 4 is on the side of the wall 1 remote from the combustion zone 2, or in a modification, Fig. 2 (not shown), the head (5a) is adjacent zone 2. The rivets may be made of stainless steel.
Patent GB-1026492-A (GB)
Title: Knitted fabrics
Inventor: ADACHI MASAHIKO
IPC: D06M17/10
Filed: 1962-10-10
Abstract: 1,026,492. Laminates. ASAHI KASEI KOGYO KUBUSHIKI KAISHA. Oct. 10, 1962, No. 38362/62. Heading B5N. A composite knitted fabric suitable for outerwear comprises a knitted fabric 1 having small elasticity, e.g. a warp knitted fabric, adhered to a knitted fabric 2 having large elasticity, e.g. a conventional knitted fabric suitable for making sweaters &c. Knitted fabric 2 preferably comprises at least 30-100% acrylic synthetic fibre whereas knitted fabric 1 preferably comprises regenerated cellulose, cuprammonium rayon, nylon, polyester, polypropylene or acrylic fibres. The components are bonded together by e.g. a polyurethane dissolved in a solvent such as ethylacetate. The adhesive is preferably sprayed at an angle less than 30 degrees to the surface of the fabrics to prevent penetration of the adhesive into one layer thus rendering the composite fabric stiff.
Patent GB-1241067-A (GB)
Title: An improved sampling gate circuit
IPC: H03K17/74
Filed: 1968-08-13
Abstract: 1,241,067. Sample gates. IWASAKI TSUSHINKI K.K. 13 Aug., 1968 [14 Aug., 1967 (2); 2 Sept., 1967], No. 38721/68. Heading H3P. Normally non-conducting diodes D1, D2 connected in opposition between input and output terminals 1, 2 are rendered conducting by a gate signal from a pulse generator 7 applied to the function of the diodes through a further diode D3, the input signal at 1 thus being sampled, and stored on a capacitor C3 between the output terminal 2 and ground. The diodes D 1 , D 2  may have their cathodes connected together (as shown) or their anodes, and in one embodiment (Fig. 5, not shown) both such arrangements are connected in parallel between the input and output terminals (8, 9) to form a diode bridge gate. The arrangements of Figs. 1 and 5 are also described, having resistance and capacitance across the diodes (Figs. 6, 7, not shown).
Patent GB-1028350-A (GB)
Title: Improved pulse scanning and recording means
IPC: H04M15/04
Filed: 1963-10-02
Abstract: 1,028,350. Automatic exchange systems. SIEMENS & HALSKE A.G. Oct. 2, 1963 [Oct. 4, 1962], No. 38736/63. Heading H4K. The invention relates to the reception and storage of signals (e.g. dial pulses, meter pulses) liable to mutilation by contact bounce, Incoming pulses on S 1  to S n  set corresponding magnetic cores provided they are enabled at that time by a scanning pulse over lead or leads e. The latter may scan the lines sequentially or simultaneously. The cores are then reset in turn by the scanner AW, resetting causing a pulse at the appropriate time position to be stored in AE. Resetting cannot take place if a signal is on the corresponding line. Fig. 2 illustrates at Sn incoming pulses having a maximum chatter time tpr max , a minimum chatter-free time of tj min , and a minimum chatter-free absence of signal tp min . Line e represents scanning pulses spaced at intervals tF e . Line AW represents the read-out times spaced at intervals tF a , M represents the core condition and a the pulse fed to the register AE. To ensure registration of any pulse tF e < tj min  and tF a <tp min.  Moreover to obviate double registration due to chatter the intervals t 1  and t 2  must be both >tpr max . These restrictions tend to reduce the available time for resetting and registration operations. Fig. 3, however, illustrates a non-wasteful disposition of pulse times which can be used provided the lines are arranged in groups G1, G2 . . . All the lines of a group are scanned simultaneously, but the scanning pulses of odd and even groups are interlaced as at e-G1, e-G2. The resetting times are sequential and occur in intervals such as t ab , t 1  and t 2  being defined as before. Thus the resetting pulses of the successive groups may be made to form a continuous sequence.
Patent GB-932691-A (GB)
Title: Improvements in or relating to alkali metal halide brine purification
Inventor: SPRINGER ROBERT ALBERT
IPC: C01D3/16
Filed: 1959-11-16
Abstract: In a method for purifying raw alkali metal halide brine containing calcium and magnesium salts as impurities, purified alkali metal halide brine is mixed with sufficient alkali metal carbonate to react with all the calcium salts in the raw brine, purified alkali metal halide brine is mixed with sufficient hydrated lime to react with all the magnesium salts in the raw brine, the two mixtures are added separately but simultaneously to the raw brine, the resulting mixture is maintained at a temperature of at least 55 DEG F. while passing it with agitation through a labyrinthine path, retaining it in the labyrinthine path for a period of time sufficient to effect complete precipitation of impurities and the optimum formation of a flocculent co-precipitate, but not in excess of this time to avoid the floc breaking up, passing the mixture to a settling zone where the flocculent co-precipitate is separated, recycling a portion of the resulting purified brine for making up the mixtures with the carbonate and the hydrated lime, and obtaining the optimum retention time in the labyrinthine path independantly of variations in the rate of withdrawal of purified brine, and adjusting the retention time to obtain the optimum retention time corresponding to variations in temperature, by recycling appropriate amounts of purified brine to the point where the raw brine is first contacted with the brine and carbonate and brine and hydrated lime mixtures.  The process may be operated at 55 DEG  to 85 DEG F.  The alkali metal may be sodium, potassium, lithium, rubidium or caesium, and the halide may be chloride, bromide, fluoride or iodide.  The labyrinthine path may be provided by one or more reactors having baffles and rotating paddles. In examples sodium chloride brines (e.g. solutions of rock salt in water) are purified using sodium carbonate (e.g. soda ash) and hydrated lime, at 60 DEG F. with a retention time of 27 minutes and at 70 DEG F. with a retention time of 16 minutes.
Patent GB-1532460-A (GB)
Title: Process for the separation of a gaseous mixture
IPC: C10K1/20
Filed: 1976-09-20
Abstract: Metals or metalloids are separated off from gaseous mixtures, which result from reduction of compounds of these metals or metalloids, by the metal vapours or metalloid vapours being absorbed in solid or liquid metals or metal salts. The absorption proceeds under thermodynamic conditions under which the metal vapours or metalloid vapours are quantitatively absorbed directly from the gaseous state and the reconversion of which to the original reduced metal compounds or metalloid compounds is completely prevented. The solutions formed during the absorption are separated from the non-absorbed residual gas. The metals or metalloids are isolated in pure form from the solutions and the absorption medium is reused in the circular process. The residual gas is burnt in order to obtain at least some of the heat necessary for the reduction of the metal compounds or metalloid compounds.
Patent GB-838090-A (GB)
Title: Improvements relating to cables for pre-stressing concrete
Inventor: HARRIS ALAN JAMES
IPC: E04C5/10
Filed: 1957-06-21
Abstract: 838,090. Reinforced concrete. SPAN TENDONS Ltd. Sept. 22, 1958 [June 21, 1957], No. 39057/56. Class 20(4) A tendon, for reinforcing concrete, comprises a plurality of steel wires 10 in a wrapping 12, the spaces between the wires being filled with a hardenable material, e.g. cement or synthetic resin, in its unhardened condition. A spiral member 11 may be incorporated for the injection of hardening fluid either before or after tensioning. Heat can be applied by passing an electric current down the wires if synthetic resin is used. The space between the member 8 and the tendon is filled with concrete.
Patent GB-1143087-A (GB)
Title: Improvements in or relating to gas filled thyratrons
Inventor: MENOWN HUGH
IPC: H01J17/46
Filed: 1965-09-14
Abstract: 1,143,087. Gas filled thermionic valves. ENGLISH ELECTRIC VALVE CO. Ltd. 8 June, 1966 [14 Sept., 1965], No. 39085/65. Heading HID. In a gas-filled thyratron having between the anode 12 and the input firing grid 4 furthest from the cathode 1, a succession of further  electrodes 9, 10, at least the electrode 10 nearest the anode is provided, in the drift space 11, with a heat dissipation assembly comprising a good heat conducting member 14 and a good heat conducting path 15 to the outside of the tube envelope. The member 14 may be an axial cylindrical rod or thick-walled tube of copper brazed to the electrode 10 with one or more radial copper rods or thick-walled tubes brazed to electrode connecting member 10A forming the heat conducting path 15. The connecting member 10A may form part of the heat conducting path to the outside of the envelope. As shown, electrode 9 may have a similar heat dissipation assembly in the drift space 11, and similarly any other large drift spaces may have such assemblies attached to their respective electrodes. These heat dissipation assemblies also aid ion collection in the drift spaces and assist in quick recovery of the tube after firing.
Patent GB-1153599-A (GB)
Title: Process for Producing Bursts of Plasma and apparatus for putting this process into use
Inventor: PREVOT FRANCOIS
IPC: H05H1/22
Filed: 1966-09-02
Abstract: 1,153,599. Thermonuclear apparatus. COMMISSARIAT A L'ENERGIE ATOMIQUE. 2 Sept., 1966 [3 Sept., 1965], No. 39345/66. Heading G6P. In a nuclear fusion device, a molecular beam is subjected to laser irradiation, which effects ionization and produces plasma which is magnetically confined. The plasma is formed in separate sections, or bursts, by interrupting the molecular beam with a shutter synchronized with the laser. Hydrogen gas and a laser, operating in the visible spectrum, are employed. By controlling the length and diameter of the molecular beam, the quantity of plasma formed and its temperature can be predetermined.
Patent GB-873177-A (GB)
Title: Improvements in or relating to magnetometers
IPC: G01R33/038
Filed: 1957-12-18
Abstract: 873,177. Magnetometers. ASKANIAWERKE A.G. Dec. 18, 1957 [Dec. 19, 1956; Nov. 30, 1957], No. 39366/57. Drawings to Specification. Class 37. A magnetometer for measuring and/or recording the fast and slow variations in a magnetic field component comprises two torsionallysuspended magnet systems, a sensitive magnet system of small magnetic moment and low moment of inertia, and an auxiliary system of higher magnetic moment and of larger moment of inertia so that it responds only to slower variation in the field, both systems being rotatable about axes parallel to each other and so spaced that the slow field strength variations at the sensitive magnet system are cancelled out by the change in field consequent upon movement of the ancillary system. The sensitive system therefor responds only to the faster changes in the magnetic field. Mirrors may be fixed to both magnet systems in order to deflect light beams and photographically record independently both the fast and slow variations of field strength. There is provision for varying the distance apart of the two magnet systems and for varying the moment of inertia of the auxiliary system which may also have a metallic member disposed in the magnetic field of the magnet system in order to provide eddy current damping. The temperature coefficients of the magnetic moments and torsion coefficients of both systems may be arranged so that their effects cancel as disclosed in Specification 720,663.
Patent GB-976453-A (GB)
Title: Improvements in roll-up doors
IPC: B60J5/14
Filed: 1963-10-07
Abstract: 976,453. Vehicle doors. FRUEHAUF CORPORATION. Oct. 7, 1963 [Dec. 31, 1962], No. 39452/63. Heading B7B. The rear side-wall parts of a van body 14, 16 are provided with slides 22, 24 to accommodate a roll-up door comprising extruded panels having recesses 54, 56 in adjacent edges to receive a rubber strip 70 to act as a hinge, the integral web 76 being gripped between the panel edges to form a joint. Slide members 38 of nylon fitted into the sides of the panel engage the recesses 30, 32 in the slides 22, 24 whilst strips 46, 48 form a seal with the face of the door.
Patent GB-338414-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L9/04
Filed: 1929-12-24
Abstract: 338,414. Svensson, S. G. Dec. 24, 1929. Vacuum cleaners.-A brush or beater is located in the suction mouth, nearer to one edge than the other, and the operative part of the brush extends outside the mouth so that the brush &c. is rotated by the draught. Fig. 2 shows pivoted rigid brush elements 9 on a stock 6. Fig. 3 shows flexible flaps of paper &c. provided with pads 14 of fabric &c. The side walls in this form cover the sides of the brush, and their lower edges are curved upwards; or they may have pivoted extensions biassed downwards for the same purpose. The suction mouth has a plane surface 4 for the object to be cleaned. The brush or beater is mounted in an open bearing 19.
Patent GB-1396328-A (GB)
Title: Electronic keyboard trainer
IPC: G09B13/02
Filed: 1972-08-24
Abstract: 1396328 Teaching typing KEE Inc 24 Aug 1972 [26 Aug 1971] 39543/72 Heading B6F A keyboard trainer system comprises a keyboard 16 having keys generating coded outputs, and program tape 32 supplying coded signals representing keys to be depressed, the key code signal and program code signal being compared and a match or mis-match being indicated, and a visual display board 18 representative of a keyboard. The display board may indicate the key to be depressed, or in an alternative mode of operation may only indicate the correct key when an incorrect key has been depressed. The unit 10 comprising the keyboard, tape reader and display board may be linked to an audiovisual unit 14.
Patent GB-1159592-A (GB)
Title: Improvements relating to the Control of Braking of a Vehicle
IPC: B60T8/74
Filed: 1966-09-05
Abstract: 1,159,592. Hydraulic brake system. REGIE NATIONALE DES USINESS RENAULT. 5 Sept., 1966 [9 Sept., 1965], No. 39658/66. Heading F2F. An anti-skid hydraulic brake system includes a flywheel 14 movable axially under wheel deceleration conditions to vary the reluctance of a pick-up 18 fed from an oscillator 27, 28, 29 and connected to a threshold amplifier 41-43 to actuate a solenoid controlled valve 8 disposed in the hydraulic line. The flywheel 14 is driven from the wheel by abutments, (not shown) springs 17 permitting limited relative movement on overrun to cause the flywheel to move axially on the recirculating ball system 15, 16. The pick-off signal is balanced against that of preset coil 24 in a bridge circuit, sufficient imbalance energizes the valve solenoid to lower valve 10, cut off supply from master cylinder 9 and release the brake applying pressure in lines 7. In another embodiment (Fig. 2, not shown), a single differential pick-up is employed directed radially to the flywheel, the bridge circuit not being utilized.
Patent GB-1285343-A (GB)
Title: Mosaic toys
IPC: A63F9/06
Filed: 1969-08-08
Abstract: 1285343 Mosaic toy DART INDUSTRIES Inc 8 Aug 1969 [12 Aug 1968] 39816/69 Heading A6S A mosaic plug-in toy comprises a base 10 formed of intersecting grid bars 11, a thin shaped sheet 17 having openings 18 which expose holes of the base-plate and mosaic elements 13 which are afixed to the base-plate by plugs 14 which pass through the holes in the sheet 17 and are held frictionally in the grid holes, the mosaic elements further having spacer means (16, Fig. 2 not shown) on their underside which do not pass through the holes in the sheet 17 and so space the elements above the surface of the sheet.
Patent GB-1001882-A (GB)
Title: Process for the production of finely-dispersed calcium carbonate
Inventor: PODSCHUS ERNST
IPC: C01F11/18
Filed: 1961-11-10
Abstract: A process for the production of finely-dispersed precipitated calcium carbonate having a disturbed calcite lattic, a specifice surface area (according to Brunauer, Emmett and Teller) of more than 80 sq. m./g. and containing silicic acid in an amount corresponding to an SiO2 content of 0.1 to 20% by weight, which process comprises reacting an aqueous suspension of calcium hydroxide of not more than 1.0 molar concentration, at a starting temperature of not more than 20 DEG  C., with gases containing carbon dioxide, with the addition of active silicic acid in an amount of 0.179 to 35.8% by weight SiO2, based on the CaO content of the suspension, and in the presence of sulphuric acid, a water-soluble salt thereof in an amount of 0.179-35.8% by weight based on the CaO content of the suspension, the supply of carbon dioxide-containing gases to the suspension being interrupted when reaching a pH value of 8.0 to 10.0 therein.  Citric acid, tartaric acid, or the sodium, potassium lithium or ammonium salts of these are referred to.
Patent GB-1004405-A (GB)
Title: Improvements in or relating to the waterproofing of paper and the like
IPC: D21H17/59
Filed: 1962-10-25
Abstract: Paper is treated with a 0.5-3% solution is perchlorethylene or white spirit of a water-proofing composition comprising a silicone oil, a silicone resin containing at least 4,000 units, and an ester of zirconic acid.  The silicone oil may contain methyl, ethyl, phenyl, vinyl, or methylvinyl groups.  The ratio of organic groups to silicon atoms in the silicone resin may be 1-1.7 to 1.  The ester may be tetraiso propyl, tetrabutyl, or tetra 2-ethylhexyl zirconate.  The proportion of silicone oil to resin may be 5-50%.  The proportion of ester to silicone compounds may be 2-25%.  The treated paper may contain 0.1-1 gm of water-proofing composition per sq m.  According to the Example, solutions of methyl hydrogenopolysiloxane, dimethylpolysiloxane, and butyl zirconate in white spirit are used.