baber/WOPTO huggingface dataset:
Patent GB-1383399-A (GB)
Title: Material for a photographic dry copying process
IPC: G03C1/498
Filed: 1972-08-10
Abstract: 1383399 Image receiving materials for transfer processes AGFA GEVAERT AG 10 Aug 1972 [12 Aug 1971] 37279/72 Heading G2C A material used as the receiving sheet for the imagewise transfer of a vaporizable reducing agent comprises a light-insensitive, reducible silver salt and a phthalimide of formula wherein R 1  and R 2  may be a saturated or unsaturated alkyl or alkoxy with 1-6 C atoms, cycloalkyl, cycloalkoxy, aralkyl, aralkoxy, hydroxy, aralkenyl or alkoxyarkenyl, and optionally a reducing agent which alone is insufficient to reduce the silver salt. The material may also contain a binder, a metal salt which improves image density as in Specification 1172425, a white pigment and 2, 6-di-t-butyl-pcresol. The material may be used with a light-sensitive material containing 4-methoxy-naphthol and erythrosin or 2-(p-chlorophenyl)-acetoacetonitrile, o-tolyl bignamidine and 1,3-diethyl-2-thio-5-[4- carboxymethoxy-cineamyidene] -barbituric acid wherein after imagewise exposure the non-exposed naphthol or acetoacetonitrile are transferred by heating to the silver material to produce a blueblack image.
Patent GB-1191028-A (GB)
Title: Electrographic Recorders
Inventor: LEE FRED
IPC: H03M1/00
Filed: 1968-08-05
Abstract: 1,191,028. Recording analogue data in digital form. VARIAN ASSOCIATES. 5 Aug., 1968 [21 Aug., 1967], No. 37323/68. Heading G4H. [Also in Division G1] An electrographic recorder in which analogue input signals I i  (Fig. 1) are converted to binary coded form includes a decoder which converts the binary coded signal into a signal on one of n leads, each lead controlling one of an array of electrodes 21 extending across a recording medium 22. In the embodiment described in which a binary coded decimal counter 8 controlling current generators 9 is pulsed until the signal I r  from the current generators balances the input signal I i , each decade 13, 14 of the counter controls decoder logic 15, 16 from which a signal on one of ten leads 17, 18 is fed to a matrix 19. The matrix includes 100 first transistors, the emitters of which are connected in groups of 10 (the jth transistor in each group being connected to the jth output of the first decoder logic 15), to one of the outputs of the decoder logic 16 via one of ten second transistors 34. The collectors of each first transistor are connected to an electrode 21, the selected electrode then dropping to a voltage of minus 600-900 V. relative to a plate electrode 29 so that a charge image is deposited on the paper 22.
Patent GB-1121764-A (GB)
Title: Apparatus for moulding boots
IPC: B29D35/00
Filed: 1966-08-19
Abstract: 1,121,764. Injection moulding apparatus for boots. PHOENIX GUMMIWERKE A.G. 19 Aug., 1966 [19 Aug., 1965], No. 37339/66. Heading B5A. An apparatus for moulding boots comprises a last 10, a part 10a thereof being attached to a holder part 14 which projects laterally of the last and slidably engages around a holder part 12 secured to a frame of the apparatus. The part 14 engages with plane surfaces 25, 26 in correspondingly shaped surfaces of upper and lower side mould parts 17 to locate the last accurately with a mould formed by these parts 17 and by a sole mould part 19, upstanding spring-urged and tapering projections 41, 33 from the latter engaging around the sole or foot part of the last. To facilitate removal and assembly of the last a convexly arcuate surface (27) (Fig. 2) of the part 12 contacts a plane surface of the part 14, while final adjustment of the last within the mould is effected by a grub screw (not shown) located at 24 and connecting with part 12 through the part 14 and lying in the plane of the drawing. The sole plate 19 is carried by an injection plate 22 and, when a sole of different colour to the boot leg is moulded, is reversible to effect such moulding. In a modification (Fig. 3, not shown) a sole plate (29) is irreversible while a holder part (28) similar to part 14 is wider in the longitudinal direction of the last to obviate stresses due to uneven moulding. The apparatus may be one of a series rotating on a table past an injection head.
Patent GB-858469-A (GB)
Title: Improvements in or relating to the bonding of gypsum to paper and products obtained thereby
IPC: C04B11/024
Filed: 1958-11-21
Abstract: In producing calcined gypsum, i.e. a form of plaster of Paris, from by-product gypsum obtained by the action of sulphuric acid on phosphate rock and containing, as impurities, phosphoric, sulphuric and hydrofluoric acids, these acids are neutralized by treatment with ammonia.  The by-product gypsum is, preferably, slurried in water and sufficient ammonia is added to bring the pH value of the slurry to between 8 and 10.  Water is then removed by filtration, centrifugation or evaporation to leave a cake, which is calcined at a temperature between 250 and 400 DEG F. to convert the gypsum into calcium sulphate hemihydrate. Any residual acid impurities in the calcined gypsum may be neutralized by treating it with ammonia.
Patent GB-1081567-A (GB)
Title: Water-dispersible starch product and process for producing the same
IPC: A23L1/0522
Filed: 1965-09-02
Abstract: A cold water dispersible starch product comprising a physio-chemical reaction product of a dry gelatinized starch or a gelatinized starch-containing flour or a gelatinized starch conversion product with a mono- and/or diglyceride of a saturated fatty acid containing 8 to 22 carbon atoms.  The starch product is made by mixing an aqueous suspension of starch, starch-contining flour or non-gelatinized conversion product thereof with the glyceride and subjecting the mixture to heating, to effect gelatinization, with simultaneous removal of water.  Heating and drying may be effected by heated rollers or by spray-drying.  The dried material may then be ground.  The mono-and/or diglycerides e.g. glycerol mono- and/or distearate may comprise 0.1-10% by weight of the starch.  The starch material may be any native starch or starch-containing flour, or conversion products such as thin-boiling starch, dextrin, etherified or esterified starch. The composition, which shows no lump formation on addition of water, and no gel formation or retrogradation on ageing and cooling of a paste, may also contain triglycerides, sugar, carboxymethyl cellulose or natural gums.
Patent GB-1368943-A (GB)
Title: Motor-driven telescopic aerials for vehicles
IPC: H01Q1/10
Filed: 1973-08-09
Abstract: 1368943 Aerials PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 Aug 1973 37726/73 Heading H4A A housing 6 for the drive unit of a motordriven telescopic aerial comprises two shells which are fixed together to form the main part of said housing. Each shell is provided with a recess in its edge and, after assembly said recesses form a receptacle which is in communication both with the inside of the housing, and with the outside, by channels which are of smaller cross-sectional area than said receptacle. The axis of the receptacle and the channels is parallel to the outgoing drive cable 4. When the aerial is mounted directly upon the drive unit, the axis of the receptacle and the channels is  vertical, as shown in Fig. 1, and a means for water drainage is thereby provided, a pad 7 made of water-permeable material being located and retained in the receptacle. Alternatively, as shown in Fig. 2, the drive unit may be located away from the aerial and the drive cable 4 extend therebetween in a flexible tube 13. In this case, the receptacle houses the head 12 of a bolt 10 by means of which the drive unit is secured. A water drain hole 14 is provided in the tube 13.
Patent GB-355621-A (GB)
Title: Improvements in or relating to a device for centering records on the spindle of a talking-machine turntable
IPC: G11B3/60
Filed: 1930-12-15
Abstract: 355,621. Gramophones. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel. Eindhoven, Holland. Dec. 15, 1930, No. 37790. Convention date, Jan. 11. [Class 40 (ii).] Records are adapted to be centred on the spindle 1 of a gramophone turntable 2 by engaging a tapering body 6 which is resiliently movable in the direction of the spindle axis and co-operates with a tapered recess in the boss of the turntable, the arrangement being that owing to the weight of the record the said body is moved axially to such an extent that the record will bear on the turntable. The turntable 2 is fixed to the motor spindle, and the tapering body 6 is provided with a pin 5 which is supported on a spring 4 in an axial cavity 3 in the spindle 1. The upward movement of the pin 5 is checked by a screw 9 which projects into the axial cavity 3 and engages a recess 7 in the pin.
Patent GB-1476611-A (GB)
Title: Parallel transistor protection circuit
IPC: H03F3/68
Filed: 1975-09-15
Abstract: 1476611 Transistor amplifier WESTING- HOUSE ELECTRIC CORP 15 Sept 1975 [25 Sept 1974] 37803/75 Heading H3T To protect semi-conductor devices, e.g. transistors, fed in parallel with a periodic signal, a diode having a turn-off time longer than the signal period is placed in series with the control terminal of each device. If any one of the power transistors Q 1 -Q n  fed with, e.g. 0À5 MHz square wave signal (Fig. 2, not shown) via transformer 20 and RC circuit 30, 52 to common input node 18 breaks down, the connection via its collector and base of the supply potential B + to the node 18 is liable to destroy all the other transistors. To prevent this a diode 16 1 -16 n  is placed in series with each base, its time to block reverse current being several signal periods long so that the signal to each transistor is not blocked in normal working. The transistors feeding common emitter load 34 are individually fused by 'Fusistors' (Registered Trade Mark) 14 1 -14 n  having sufficient resistance to ensure equal sharing of load current between the active transistors, their fuses having a delay time much longer than the turn-off time of the diodes.
Patent GB-1061902-A (GB)
Title: Improvements in or relating to automatic control apparatus
Inventor: SCHLEIN HELMAR
IPC: G05B13/02
Filed: 1962-10-05
Abstract: 1,061,902. Automatic control. NORTH AMERICAN AVIATION Inc. Oct. 11, 1963 [Oct. 5, 1962], No. 37853/62. Heading G3R. In a system in which a variable dependent on an independent variable is automatically adjusted towards a value at which its rate of change with respect to the independent variable is zero, adjustment is terminated when the difference between successive values of the dependent value falls below a predetermined value, and restarted when a function of the two variables changes by a predetermined amount. As described, material is supplied to a reaction vessel at a constant rate and the heat input (an independent variable) is automatically varied until the output yield (a dependent variable) is approximately a maximum. Thereafter, control ceases and the ratio between the two variables is monitored. Should this ratio deviate by more than a predetermined amount, control to achieve maximum yield is resumed. A detailed embodiment involving flip-flop circuits and transistors and utilizing an electrical circuit to simulate a controlled system is described. In this embodiment the dependent variable varies the repetition frequency and the pulse width of an integrating type pulse generator. A timing circuit causes the pulse generator periodically to gate, from an independent source, a number of pulses which is inversely proportional to the magnitude of the dependent variable. Each number so obtained is compared by a forward/backward counter with the previous number which is reproduced by a delay circuit. Any difference above a predetermined magnitude causes operation of a reversible servomotor to adjust the independent variable in such sense that the dependent variable moves nearer to an optimum value. Periodic comparison between counts and delayed counts continues until the difference becomes less than the predetermined magnitude whereupon control of the independent variable ceases. The independent variable is then caused to vary pulse width instead of the dependent variable and the comparison between counts and delayed counts indicates variations in the ratio of the two variables. If this ratio deviates by more than a predetermined extent operation of the system to achieve an optimum is resumed.
Patent GB-784419-A (GB)
Title: Heater
Inventor: DUMBRELL EDWARD JAMES
IPC: A01K31/20
Filed: 1954-12-31
Abstract: 784,419. Brooders. MAYES OF WICKFORD, Ltd. March 29, 1956 [Dec. 31, 1954], No. 37870/54. Class 5(2). [Also in Group XI]  A heater for use as a brooder for chicks or piglets comprises a downwardly directed hexagonal reflector 1 heated by a gas burner 3. A box 9 filled with asbestos forms a radiant above the burner and below the canopy, and a partially enclosed space 10 between the radiant and the top plate 12 of the burner forms a heat storage chamber. The burner 3 and a baffle 13 surmounting it are surrounded by a wire shield 24.
Patent GB-1465222-A (GB)
Title: Tool
IPC: B25F1/00
Filed: 1975-09-16
Abstract: 1465222 Combination tools A ANDERSSON 16 Sep 1975 [16 Sept 1974] 38075/75 Heading B4K [Also in Division B3] A hand tool comprises a generally spherical handle portion 1 and a plurality of tools 2, 3, 4 (shown as screwdrivers) projecting outwardly from spaced points on the surface of the handle. Gripping ribs 6, 7, 8 (or grooves) are arranged symmetrically with respect to the tools.
Patent GB-1314986-A (GB)
Title: Multiple process control system
IPC: G05B19/05
Filed: 1970-08-07
Abstract: 1314986 Electric selective signalling BAILEY METER CO 7 Aug 1970 [12 Aug 1969] 38193/70 Heading G4H  In a system where several processes are controlled simultaneously by a computer, values of various parameters of the processes are assembled in bit-form into data words for processing by the computer, which then issues control words from whose bit patterns the process-controllers may be controlled simultaneously. As shown in the figure processes A to N provide four parameter values 1 to A which are simultaneously passed to the corresponding one of four data word stores 14a to 14d. Each parameter value is expressed either by a single bit, or in an alternative arrangement by 8-bits in the word or words of the stores. Under the supervision of an input address decoder 24 the contents of the stores 14c to 14d are transferred in turn to the control computer 22. Each process A to N has three controllers X, Y and Z and the computer issues, under the supervision of output address decoder 34, a control word corresponding to the X, Y and Z controls to each of stores 36a to 36c from whose bit pattern corresponding controllers in each of the processes may be controlled.
Patent GB-369566-A (GB)
Title: Improvements relating to flanged joints
IPC: F16L23/24
Filed: 1930-12-19
Abstract: 369,566. Bolts for flanged joints. GUY, H. L., Thornhill, Hale Road, Hale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Dec. 19, 1930, No. 38364. [Class 89 (i).] Hollow bolts for use in the hollow joints of steam cylinders, pipes or the like are provided with means for circulating gas or vapour through the bore to control the temperature. In the example shown, vapour such as steam at a moderate temperature is supplied by a pipe 7 to the middle of the bore. The same means may be used to heat the bolt before admitting steam to the cylinder 1. In another form (not shown) tubes such as 6 are placed at both ends of the bolt to aid in causing an air current through it.
Patent GB-1055470-A (GB)
Title: Process for the manufacture of copolymers of -a-olefines
IPC: C08F10/02
Filed: 1963-09-30
Abstract: Copolymers of alpha-olefines or mixtures of alpha-olefines with diolefines are made by effecting the copolymerization in a homogeneous phase in the presence of a catalyst system comprising a vanadium compound soluble in an inert organic solvent, an organoaluminium compound and a cyclo-olefine containing a halogen atom bound to at least one carbon atom which is bound by a double bond to another carbon atom, and a halogen atom bound to at least one carbon atom which is bound only by single bonds to other carbon atoms.  Specified halogen-containing cycloolefines are hexachlorocyclopentadiene, 2:213: 4:5:51-hexachlorocyclopentene, 2:3:4:5-tetrachloro - 2:5 - dibromocyclopentene, and 1:2:3:4:7:7 - bicyclo - (2.2.1) - heptadiene-2:5. The catalyst may be preformed or formed in situ.  Alpha-olefines mentioned are ethylene, propylene, butene-(1), pentene-(1), hexene - (1), 4 - methyl - pentene - (1), 5:5-dimethyl-hexene-(1), and mixtures thereof with optionally hexadiene-(1:5), heptadiene-(1:5), 11-ethyltridecadiene-(1:10), dicyclopentadiene, or bicyclo-(2.2.1)-heptadiene-(2:5).  The polymerization can be carried out batchwise or continuously, in bulk, or preferably in the presence of a hydrocarbon or halogenated hydrocarbon diluent.  The polymers are recovered and vulcanized by known methods. The organoaluminium compounds exemplified are triethyl, and ethyl-aluminium sesquichloride. Exemplified vanadium compounds are dichloro-o-vanadic acid, monochloro-o-vanadic acid, VOCl3, VCl4, vanadium oxydichloride acetylacetonate, and a complex of VOCl3 and tetrahydrofuran.
Patent GB-860918-A (GB)
Title: Improvements relating to containers, particularly for housing high or low temperature installations and apparatus, preferably with insulation therefor
IPC: F25J3/04
Filed: 1958-11-28
Abstract: 860,918. Walls &c. LINDE'S EISMASCHINEN A. G. FUR GES. Nov. 28, 1958 [Nov. 29, 1957], No. 38473/58. Class 20(4) [Also in Group XXII] The walls of a container comprise framing members 1, la, of open-section form with the gap 7 in the section located on the outside of the container and at least one pair of plates 2, 3, marginal portions of which are detachably affixed to flanges c, d or I, m, forming part of the framing members 1, 1a, the backs of connecting bolts located in the interior space behind these flanges being accessible from the exterior of the container by way of the gap 7. Strips 6, Fig. 3, of sealing material may be inserted between the plates and flanges and the plates may be bent at 13, 14 to cover the edges of the sealing strip 6. The framing members 1 may be formed of bent sheet material and may incorporate stiffeners 11 or may be formed of rolled section-bar material, e.g. rolled H-section bar having welded-on flanges, Fig. 4 (not shown). The invention is applicable to a container for housing high or low temperature installations, preferably with insulation therefore. The plates and framing members may be of steel.
Patent GB-1530770-A (GB)
Title: 2,4-imidazolidinedione derivatives and preparation thereo
IPC: A61K31/415
Filed: 1977-09-16
Abstract: 1530770 Imidazolidines MORTON NORWICH PRODUCTS Inc 16 Sept 1977 [18 Oct 1976] 38790/77 Heading C2C Compounds of the general formula (X=H; 4-halo, NO 2 , OMe, Me; 3-CF 3 ; 3,4- dichloro) and their salts are prepared by cyclizing a compound of the formula The preparation of intermediates is described. The above compounds are skeletal muscle relaxants, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-960060-A (GB)
Title: Improvements relating to polymer compositions
IPC: C08L23/04
Filed: 1962-10-15
Abstract: A composition comprises (A) a mixture of polymers containing (1) 60 to 85% of a polymer of ethylene of density 0.945 to 0.970 and a melt index of 0.1 to 3.0 and containing 0 to 5% of an alpha-olefine monomer and (2) 15 to 40% of butyl rubber of molecular weight 150,000 to 600,000 and (B) 0.05 to 5% of a vulcanisation accelerator. Activators may also be present.  The polymer of ethylene may be polyethylene, or a copolymer with 1% or less of 1-butene. The usual accelerators may be used and the weight ratio of A (1) to A (2) may be 7 to 3.  Cured shaped articles, e.g. films, may be made by heating a mixture of the components of the composition above its melting point, shaping and quenching.
Patent GB-1510169-A (GB)
Title: Digital communications system with immunity to frequency selective fading
IPC: H04L27/227
Filed: 1975-09-23
Abstract: 1510169 Data transmission RAYTHEON CO 23 Sept 1975 [7 Oct 1974] 39020/75 Heading H4P In a digital troposcatter communication system having immunity to frequency selective fading, the transmitter comprises a sine wave oscillator 22 which is multiplied at 24 by a lower frequency signal 23 so as to increase the band width of the wave from oscillator 22. The resulting wave is keyed at 26, 28 and phase shift modulated at 30 by digital data before being changed in frequency in a transmitter 22 for radiation by the antenna 34. The system includes a receiver, self adaptive to the spectrum of the received signals, notwithstanding frequency selective distortion caused by multiple reflections from the troposphere. Oscillator 22 is preferably of 70 MHz and is multiplied by a 1À25 MHz square wave 23. Stages 26, 28 and 30 are arranged so that two bits of the digital data occupy one burst from gate 26. The resulting signal is heterodyned so as to produce a transmitted frequency between 300 MHz and 10 GHz. Fig. 5 shows the resulting frequency spectrum. The transmitter shown may form part of a transceiver at either end of the link, the receiver portion automatically adapting to the spectral response of the received signals so as to minimize frequency selective fading. In Fig. 3 (not shown) the square wave 23 is replaced by a predetermined sequence of binary numbers using a Barker code. Receiver. Fig. 6 shows the receiving section of the transceivers. The coded pulses from the IF 104 are delayed at 128 to form a reference pulse which is mixed at 106 with the IF output, the result being integrated at 108 and sampled at 110 by means of a sync. circuit 112. The output of sampler 110 is fed back to an inverse modulator 116 where the digital phase modulation is removed from the distorted receive pulse, leaving only the envelope. The delay introduced by the integration and sampling is the same as that introduced at 128. The reference signal is stabilized against occasional decision errors by recirculation path 118, the positive feedback, so introduced, attenuating noise in the generated reference.