baber/WOPTO huggingface dataset:
Patent GB-987400-A (GB)
Title: Improved stiffness-determining device
Inventor: GURNEY WILLIAM ARTHUR
IPC: G01N3/34
Filed: 1960-12-20
Abstract: 987,400. Testing rheological properties; recording-apparatus. DUNLOP RUBBER CO. Ltd. Nov.29, 1961 [Dec. 20, 1960], No. 43681/60. Headings G1J and G1S. The stiffness of rubber is tested during the vulcanization (or cure) process (by heating) by oscillating a rigid strip embedded in the rubber and recording the force required to produce such oscillation between fixed limits of amplitude. As shown in Fig. 1, the sample 100 sandwiches the rigid strip 20 and is clamped between platens 27, 28 provided with electrical heating means. The strip 20 is held between a spring 23 and a pair of rods 13 suspended from a bent phosphor-bronze strip 9 clamped to a frame-member 6 and to a lever 1 for which it forms a pivot as well as a support. The amplitude of movement of lever 1 is limited by electrically-conducting stops 46, 47 which close circuits when in contact with the stop 45 on the lever to render a recording stylus inoperative during these phases of the lever movement (see below). The lever 1 is oscillated through a spring 50 by means of a crank 57, driven by a motor 59, acting via cord 55 on a sliding carriage 51. The latter carries an electrically-conducting stylus 53 which marks vertical lines on a slowly moving sheet of electrographic paper 64 fed from a roll 54, the length of these lines being determined by the extension, and hence the force, in spring 50. As shown in Fig. 6, the switching contacts 46, 47 connect the grid of a triode 82 to the centre-tapping of a mains transformer 80 via a smoothed half-wave rectifier to give a grid potential of -125 V thus stopping anode current to the stylus 53. A cam 60 on the crank-shaft co-operating with a switch 61 can be arranged, if desired, so as to close the grid circuit and thus disable the stylus for one direction of movement of the beam 1. A hand-operated cam 70 serves to hold the beam 1 in a median position when the apparatus is not in use and the releasing movement is arranged to close the switches 85, 86 (Fig. 6) in the primary and secondary circuits of the transformer. A second stylus 83 is provided to mark a time scale on the recording paper. Specification 987,399 is referred to.
Patent GB-1019209-A (GB)
Title: Regenerative drive transmission
IPC: F16H47/08
Filed: 1964-10-27
Abstract: 1,019,209. Hydromechanical variable-speed gear. FORD MOTOR CO. Ltd. Oct. 27, 1964 [Dec. 30, 1963], No. 43750/64. Heading F2D. The impeller 18 of a three-element overrunreactor-type torque converter on a motor vehicle is driven by the input shaft 10 through a friction clutch 60 and sun 46 of an overdrive sun-ring-planet train 54, whilst its turbine 14 is directly driven by the input 10, drive issuing from the ring gear 52 of the overdrive train 54, which may drive the final output 80 through a controllable direct-reduced sun-ring train 78. For reverse, the overdrive train carrier 54 is declutched at 60 from input and braked at 56, whereupon the turbine 14 acts as impeller, and the impeller 18 as turbine driving the sun 46 which drives the ring 52 through the stationary planets. The rear train is then set for twoway reduction by applying a band-brake 94 to its sun. In normal forward drive the rear train is locked up by a clutch 86, which, for increased performance, is released to allow the sun to react on a one-way brake 96 for one-way reduction. The clutches and brakes are applied by fluid pressure and released by springs, and a toothed wheel 104, for engagement by a parklock pawl, is provided.
Patent GB-1163782-A (GB)
Title: Control Arrangement for the Hydraulic Power Lift of Agricultural Tractors
IPC: A01B63/111
Filed: 1966-09-30
Abstract: 1,163,782. Tractor power lift mechanisms. KLÍCKNER-HUMBOLDT-DEUTZ A.G. 30 Sept., 1966 [29 Oct., 1965], No. 43791/66. Heading AlP. A lever 19 is moved to select whether the hydraulic mechanism responds to draft or position control signals. A link 32 transmits the signals to a main control slide valve 30, and a coupling member 20, having stops 21, 22 respectively engageable with a draft control rod 7 and a position control member 28, transmits the signals to the link 32. The member 20 is attached to the level 19 by link 15 whereby it can be swung between its signal transmitting position.
Patent GB-1156985-A (GB)
Title: Moulded Insulating Article and Process of Making same
Inventor: ROGERS FREDERIC LEVERNE
IPC: B29C44/12
Filed: 1966-09-30
Abstract: 1,156,985. Insulating apparatus. F. L. ROGERS and W. W. ROGERS. 30 Sept., 1966 [21 Oct., 1965], No. 43886/66. Heading B5A. [Also in Division F4] An insulating component is made by coating a former with a plastics skin to provide coated and uncoated areas, placing a pre-formed shell thereover contacting the former at a line spaced from the coated area and providing an enclosure which is filled with uncured, foamable material, heating it to foam and cure the material which adheres to the skin and the shell. The skin may be a vinyl resin and the foam may be a polyurethane; the shell may be glass-fibre-reinforced polyester. A portable insulating kit (Figs. 1-3, not shown) may be made comprising two such components (30, 31) fastened together, one or both having a depression (32) therein defining a compartment for containers.
Patent GB-1487679-A (GB)
Title: Sensor for sensing change in the amount of fluent material in a reservoir
IPC: G01F23/24
Filed: 1975-10-24
Abstract: 1487679 Sensing fluid level CHRYSLER CORP 24 Oct 1975 [4 Nov 1974] 43905/75 Heading G1N [Also in Division F2] A sensor for sensing a predetermined change in the level of electrically conductive hydraulic brake fluid 12 in each of two reservoirs 10a, 10b comprises resistance probe assemblies 14a, 14b arranged to be normally immersed in the fluid and connected to respective capacitors 20a, b supplied by oscillator 42 with a pulse train voltage V 1  whereby the resultant transient voltage waveforms V 3 , V 4  occuring due to the RC time constant of the capacitorresistance combination are sampled at intervals t 1 -t 2 , t3-t4 and t 5 -t 6  and if either fluid level drops below the probe the resultant voltage transient reflects the increased time-constant and initiates a warning lamp 40 via logic circuit 46, memory circuit 48 and transistor 38. The logic circuit utilizes inverters 74, 76 and a NAND gate 78 whereby if the level of V 3  or V4 is high when the positive excursion of V 2  terminates a logic high passes to flip-flop 80 and thence to enable the transistor. In an alternative embodiment Figs. 3, 4 (not shown) the probe resistances are connected sequentially by a time division multi-plex arrangement to discharge a charged capacitor 84 and the transient waveform is monitored similarly to the foregoing.
Patent GB-1204151-A (GB)
Title: Device for the accurate measurement of temperature
IPC: G01K1/02
Filed: 1967-09-27
Abstract: 1,204,151. Measuring temperature electrically LICENTIA PATENT-VERWALTUNGS - G.m.b.H. Sept.27, 1967, [Sept.27, 1966], No.43916/67. Heading G1N. A constant current source 7, Fig.3, supplies a series combination of a reference (constant valve) resistor 13 and a selected one of temperature sensitive resistors 8<SP>1</SP>, 8<SP>11</SP>, 8<SP>111</SP>, the voltages across the reference resistor 13 and the selected resistor 8<SP>1</SP>, 8<SP>11</SP>, or 8<SP>111</SP> being successively compared by a memory 15 and comparator 16. An appropiate switch 12<SP>1</SP>,12<SP>11</SP>,12<SP>111</SP> connects the selected temperature measuring resistor to the reference resistor and also connects its output voltage to contacts of a switch 14. The switch 14 connects sequentially the voltages to be compared to an amplifier 10, the memory 15, the comparator 16 and an indicator 17. An analogue to digital convertor 11 may be used. The reference resistor may be of manganin.
Patent GB-1089049-A (GB)
Title: Vacuum circuit interrupter
IPC: H01H1/02
Filed: 1966-10-03
Abstract: 1,089,049. Vacuum switches; contact materials. WESTINGHOUSE ELECTRIC CORPORATION. Oct. 3, 1966 [Oct. 1, 1965], 43997/66. Heading H2B. The contacts (16, 17) of a vacuum switch are made of at least 25% pure tantalum. The contacts may be of sintered or arc fused material and it is stated that with 99À9% pure tantalum contacts average chopping currents of the order of 2À6 amps are achieved. Values of this for a number of other metals are given for comparison. The gas content of the contacts should be less than one part in 10<SP>6</SP> and the pressure in the envelope (2) less than 10<SP>-5</SP> Torr.
Patent GB-1223495-A (GB)
Title: Photographic gelatine silver halide materials
Inventor: MATEJEC REINHART
IPC: G03C1/06
Filed: 1968-09-17
Abstract: 1,223,495. Photographic gelatino silver halide materials. AGFA-GEVAERT A.G. Sept.17, 1968 [Sept.27, 1967], No.44142/68. Heading G2C. A light-sensitive photographic gelatino silver halide emulsion contains the enzyme catalase, the catalase activity of the gelatine being more than 10 international active units per gram. The catalase stabilizes the latent image and also the density and tone of the print. The catalase may be added to the gelatine as a buffered aqueous solution before or during emulsion manufacture, after chemical ripening or the coated material may be treated with the solution.
Patent GB-1165684-A (GB)
Title: Improvements in and relating to Methods of Manufacturing Semiconductor Devices
IPC: H01L23/04
Filed: 1966-10-04
Abstract: 1,165,684. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 Oct., 1966 [7 Oct., 1965], No. 44232/66. Heading H1K. A semi-conductor device comprises a sealed glass envelope 3 through the wall of which passes a conductor 5, the part of the conductor inside the envelope having an enamel layer 6. The layer is formed by immersing the conductor in a glass suspension, washing the suspension away from the contact-making part of the conductor by dipping it in alcohol, and heating the suspension during the sealing of the conductor into the envelope to convert the suspension into enamel. The conductor may be a coppersheathed nickel-iron wire carrying a thinner, preferably gold, electrode wire which makes point contact or alloyed contact with a germanium body 1.
Patent GB-1145636-A (GB)
Title: Improved tub-type container of plastics material
IPC: B65D43/02
Filed: 1967-10-03
Abstract: 1,145,636. Portable containers; container closures. OWENS-ILLINOIS Inc. 3 Oct., 1967 [3 Oct., 1966], No. 44965/67. Headings B8D and B8T. [Also in Division A4] A plastics tub-shaped container (10), Figs. 1, 3 (not shown), having a mouth of greater diameter than its base, is formed with a lower stacking bead 14, Fig. 2, and an upper, thicker, stacking shoulder 15, which can interengage as shown with a like bead &c. on another container. A web 16 connects the stacking shoulder 15 to a top rim 17 having a downwardly-flared outer camming surface 21. Container closures.-A plastics closure 25, Fig. 4, is snapped-over the top rim 17 of the container, and has a skirt 30 with a shaped lower lip 31 which cams across the flared rim surface 21 as the closure is applied. The closure lip 31 seals against the edge 20 of the top rim 17, and the inner wall 27 of the closure seals against the container wall, just below the stacking shoulder 15.
Patent GB-1456926-A (GB)
Title: Form for use in the winding of coils
IPC: H01F41/06
Filed: 1974-10-21
Abstract: 1456926 Winding formers INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 21 Oct 1974 [22 Oct 1973] 45483/74 Heading B3E A former for winding coils, e.g. saddle coils for a television deflector yoke, is made from synthetic resin and provided with a metallic surface layer. In an embodiment, injection moulded ABS resin is coated chemically, electro-chemically or electro-mechanically with chromium. The formers are thus readily reproducable, and wear is indicated by exposure of the ABS resin, which may be brightly coloured.
Patent GB-1082760-A (GB)
Title: A light fitting
IPC: F21V21/02
Filed: 1964-11-11
Abstract: 1,082,760. Latches. LICENTIA PATENTVERWALTUNGS G.m.b.H. Nov. 11, 1964 [Nov. 11, 1963; Jan. 10, 1964], No. 45918/64. Heading E2A. [Also in Division F4] A lamp batten 5 and a reflector or louvre 18 are each provided with two spaced holes 4, 19 to receive spring biased latches 3 depending from a carrier rail 1 (not shown), the spacing and size of the holes being such that the latches can be deflected to release the member 18 without also releasing the batten 5. The holes are pointed at one end to assist in centering the supported members on the carrier rail.
Patent GB-1036600-A (GB)
Title: Polymeric materials
Inventor: COATES HAROLD
IPC: C08G79/04
Filed: 1962-12-07
Abstract: Polymeric materials are obtained by heating a triaryl phosphite ester with a polyhydric phenol in a molar ratio of from 3:1 to 1:3 in the presence of a basic catalyst so that transesterification occurs and a monohydric phenol is liberated.  The reaction may be carried out at 150 DEG  to 250 DEG  C. and so that the monohydric phenol is removed by distillation.  The reaction may be discontinued before completion of the reaction but after at least 60% of the polyhydric phenol has reacted, to obtain an acetone-soluble precondensate which may be cured by subsequent heating to at least 200 DEG  C. optionally in the presence of formaldehyde or a compound capable of generating formaldehyde on heating.  In examples polymers are obtained by heating triphenyl phosphite with hydroquinone, diphenylolpropane, resorcinol, catechol, 1,5-dihydroxynaphthalene and pyrogallol, using sodium phenate as catalyst.
Patent GB-1375824-A (GB)
IPC: H03M1/00
Filed: 1971-10-28
Abstract: 1375824 Photo-electric apparatus CRANFIELD INSTITUTE OF TECHNOLOGY 28 Oct 1971 [30 Sept 1970] 46603/70 Heading G1A A signal representing any eccentricity of the axis of symmetry of a grating 2, Fig. 2, from the axis of rotation 1 is derived by sensing the grating by two heads 3 angularly spaced from each other and comparing the output signals from the heads. In the embodiment the outputs from the heads 3 are connected via divider circuits 20, 20', delivering output signals on either UP or DOWN output leads in dependence on the direction of rotation of the grating. The circuits20, 20' are connected via sampling unit 23 (to prevent loss of pulses) and OR gates 21, 22 to the input of a reversible counter 24. Switch 25 may be positioned to reverse the connection between the dividers and the counter so that the difference between the outputs of the two dividers is measured. This results in a sinusoidally varying count in counter 24, the amplitude of which is proportional to the eccentricity present. The grating may then be adjusted by (a) noting the maximum and minimum readings in the counter during one revolution of the grating, (b) stopping the rotation at the maximum count and (c) adjusting the centre of the grating in a direction perpendicular to the diameter joining the two heads until the counter reaches the mean of the maximum and the minimum reading. With the switch in its normal (not shown) position the system  measures angular displacement, and effects some compensation for eccentricity.
Patent GB-1447246-A (GB)
Title: Process for the production of levulose-bearing syrups
IPC: C12N11/14
Filed: 1973-10-02
Abstract: 1447246 Isomerizing dextrose to levulose CPC INTERNATIONAL Inc 2 Oct 1973 [2 Oct 1972] 46803/75 Divided out of 1447245 Heading C2S Dextrose is enzymatically isomerized to levulose in a process which comprises passing a continuous stream of a solution of dextrose into contact with a xylose isomerase enzyme preparation at not less than 50‹ C. and collecting the effluent solution and recovering levulose therefrom until a decrease in enzyme activity becomes apparent, subsequently increasing the temperature at which the solution of the dextrose makes contact with the xylose isomerase enzyme preparation by at least 5‹ C. such that the activity of the enzyme is enhanced, and then continuing the process at the higher temperature. The enzyme used is derived from a microorganism of the Streptomyces genus.
Patent GB-1475049-A (GB)
Title: Corrosion inhibition
IPC: C23F11/10
Filed: 1975-11-18
Abstract: 1475049 Corrosion-inhibiting composition CHEMED CORP 18 Nov 1975 47568/75 Heading ClC [Also in Division C7] A composition for inhibiting corrosion in aqueous systems comprises (1) a water-soluble amine pyrophosphate (2) an organophosphonate and (3) a triazole. The amine in (1) may be a primary, secondary, or tertiary aliphatic C 2 - C 10  amine, an aromatic amine such as aniline (optionally C 1 -C 6  alkyl-substituted) or a heterocyclic amine, e.g. pyrrole or pyridine (optionally substituted); (2) may be where m=1-10, R 1 =H or C 1 -C 4  alkyl, R 2 =OH or R 1 , R 3 =C 1 -C 10  alkyl, phenyl or benzyl, and R<SP>1</SP> = C 1 -C 10  alkylene, or salts thereof; (3) may be benzotriazole, 1,2,3-triazole or derivatives thereof. Corrosion of Al, Fe, Cu or Zn is inhibited by maintaining in water in contact therewith 0À5-1,000 p.p.m. of (1), 0À5-1,000 p.p.m. of (2) and 0À5-200 p.p.m. of (3).
Patent GB-1474830-A (GB)
Title: Process of blanketing with inert gas
IPC: B65B31/00
Filed: 1975-11-20
Abstract: 1474830 Filling containers with inflammable or explosive liquids I M C CHEMICAL GROUP Inc 20 Nov 1975 [16 Jan 1975] 47780/75 Heading A5A Oxygen is eliminated from a shipping container for a liquid which is inflammable or explosive (e.g. nitromethane) while filling with the liquid by (a) purging the container with an inert gas (defined) by introducing the gas at the bottom of the container, pressurizing the gas to at least 10 psig and releasing the pressure, (b) repeating the pressurizing and releasing steps a plurality of times, (c) introducing the liquid while maintaining the flow of inert gas until the container is filled and (d) closing the container securely. The inert gas is helium, neon, argon, nitrogen. carbon dioxide, methane, ethane, propane, butane or chlorofluorohydrocarbons and contains #0.1 vol % of oxygen. A storage tank for the liquid may also be filled by purging with the gas to provide an atmosphere containing <1% BY VOL O2, purging the liquid with the gas, filling the storage tank with the liquid while maintaining the gas atmosphere, pressurizing the tank filled with the liquid to 4 to 7 psig and filling the shipping container from this tank as described above.
Patent GB-1132298-A (GB)
Title: An oscillator comprising field effect transistors
IPC: H03B5/12
Filed: 1967-10-20
Abstract: 1,132,298. Transistor oscillator circuits. C.I.T.-COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS. 20 Oct., 1967 [21 Oct., 1966], No. 47794/67. Heading H3T. An oscillator comprises a field effect transistor T1 and, in series with it, a further field effect transistor T2 operating in saturation. Since the current through transistor T2 varies little with temperature, the current through transistor T1 is also temperature stabilized, and the operation of the oscillator is stabilized. The output is taken from the drain of transistor T1 through a source follower stage T3.
Patent GB-1093558-A (GB)
Title: Improvements in method and apparatus for measuring fluid thermal characteristics
IPC: G01N25/00
Filed: 1964-11-25
Abstract: 1, 093, 558. Measuring heat flow electrically; determining thermal characteristics. GENERAL ELECTRIC CO. Nov. 25, 1964 [Dec. 23, 1963], No. 47920/64. Headings G1D and G1N. Fluid flowing at a constant rate through a tube 10, Fig. 1, is heated by an electric heater 22 on the tube, the tube being situated in an enclosure 24 containing further, independently controllable, heaters 23 for controlling the ambient temperature; a plurality of thermocouples 14 measure the tube temperature, while a pair of thermocouples 26 at the inlet and outlet ends of the tube 10 measure the average temperature of the fluid in the tube, the measured difference between these temperatures being a measure of the heat transfer through the tube to the fluid. The "heat transfer coefficient" is obtained, which is the quantity of heat passing through unit area of the tube surface per degree of temperature difference, and which depends upon the thermal conductivities and capacities of the fluid and the tube. In particular it depends upon the amount of gum or varnish deposited from a fuel, constituting the fluid, upon the tube wall under the elevated temperature conditions, which are intended to simulate engine operating conditions, thereby enabling the suitability of a certain fuel for a certain engine application to be assessed. The fuel is supplied from a tank 11 via a pressure regulator 16, a filter 18, and a flow measuring device 19, to the tube inlet 25. It may be preheated at 20. A manometer 21 provides a more accurate flow rate indication. The heaters 23 are arranged to reduce heat losses to a minimum so that substantially all heat generated is supplied to the tube, and are arranged to surround the tube Fig. 2 (not shown).
Patent GB-1087477-A (GB)
Title: Stabilising polycarbonates
IPC: C08K5/526
Filed: 1965-11-11
Abstract: Polycarbonates of dihydric phenols are stabilized by incorporating into them a tertiary ester of phosphorous acid and a highly hindered phenol.  Preferably the amount of each stabilizer is 0.05 to 5% by weight of the polycarbonate. In the phosphite, the groups attached to the phosphorous acid residue may be alkyl hydroxyalkyl, cycloalkyl, aryl or alkyl- or cycloalkyl-substitute aryl groups.  The hindered phenol preferably has the formula <FORM:1087477/C3/1> where R is a branched alkyl group, X is a hydroxyl, alkyl or phenyl group and n is 0 to 4. The stabilizers may be added before the prepartion of the resin or to the preformed resin (possibly dissolved in methylene chloride).  In examples,the polycarbonate stabilized was one made by phosgenating bisphenol A and reacting the product with piperazine.
Patent GB-1412047-A (GB)
Title: Apparatus for interposing separating sheet between food slices
IPC: A01J27/00
Filed: 1973-10-16
Abstract: 1412047 Associating sheets HOCHLAND REICH SUMMER & CO 16 Oct 1973 [26 Oct 1972] 48206/73 Heading B8R A web of parchment is fed from a roll 1 by feed rollers 6, 7 to a cylindrical cutter 11 having a perforating blade 12, which cutter has a higher peripheral speed than the rollers so that as the web is perforated the portion in front of the perforations is torn off as a separate sheet 20, which is fed by rollers 15, 16, and creasing rollers 17, 18 which stiffen it-by creasing it, into the downward path of cheese slices 19 from a slicing-machine, so that the sheets are interleaved with the slices. When a sheet is not to be interleaved, as after the last slice of a package, a pneumatic device 9 swings a rocker 10 to disengage the rollers 7, 8 from each other and engage reversing rollers 4, 5 to retract the web from the cutter.
Patent GB-1132855-A (GB)
Title: Process for producing l-glutamic acid by fermentation
IPC: C12P13/14
Filed: 1965-11-15
Abstract: 1,132,855. L-Glutamic acid. AJINOMOTO CO. Inc. 15 Nov., 1965 [24 Nov., 1964; 9 July, 1965], No. 48343/65. Heading C2C. L-Glutamic acid is prepared by a two-stage process in which an L-glutamic acid producing bacterium is first cultivated in a medium containing growth promoting substance in an amount of more than the sub-optimum amount for bacterial growth (i.e. an amount higher than that which gives rise to L-glutamic acid production), whereby a seed culture is obtained in which the bacterial cells include the growth promoting substance in more than the specific amount for growth control (i.e. the amount of growth promoter present in the cells when bacterial growth substantially ceases and L- glutamic acid production takes place), and the resulting seed culture is then added to a main culture medium which either contains no growth promoting substance or contains such substance in conjunction with a growth control agent, whereby L-glutamic acid production takes place when the growth promoter content of the bacterial cells falls to the specific amount for growth control and continues while such specific amount is maintained.