baber/WOPTO huggingface dataset:
Patent GB-1052249-A (GB)
IPC: G11B23/08
Abstract: 1,052,249. Tape recorder cassettes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov.27, 1964 [Nov.30. 1963]. No. 48299/64. Heading G5R. To insert a reversible two-spool cassette to a portable tape recorder during operation, the splined core-spindles and the capstan 30 are inserted into the lower face of the cassette by loading in the direction B, Fig. 4, after engaging the rear edge of the cassette under a lip (36, Fig. 3, not shown) in the case. The cassette is then locked by advancing the plate 27, carrying the erase head 28, record/ replay head 22 and pinch-roller 29 to engage them in closely-fitting mortise openings, such as 17 in the cassette outer sidewall, an inner sidewall 38 serving to stiffen the structure. Two pairs of clearance holes 21, 31 and 20, 32 are provided for the capstan, which drives an # inch two-track tape. The cassette contains a fixed felt pressurepad 33 to force the tape against the record/ replay head only. Advancement of the plate 27, also switches on the motor and electronic circuits of the recorder.
Patent GB-1052316-A (GB)
Abstract: 1,052,316. De-sludging settling tanks for sewage. AMES CROSTA MILLS & CO. Ltd. Aug. 16, 1965, No. 33414/64. Heading B8A. De-sludging means for sweeping the floor of a rectangular sewage settling tank 10 with a flat horizontal floor 11 and vertical walls 12 with copings 13 providing runways for supporting wheels 14 at opposite ends of a transverse bridge 15 comprises a plurality of scraper units 21 between and attached to vertical draw-off pipes 20. Each scraper unit 21 comprises four vertical plates 22 arranged to form a diamond pattern in plan view, Fig. 7 (not shown), and united at their upper edges to a pyramidal superstructure 23 the inclined faces of which are at such an angle that sludge cannot settle on them, Fig. 5 (not shown). The unit 21 is plated in at the base 24 and the four lower edges are provided with replaceable rubber blades 25. Each pipe 21, from whichever side the assembly is viewed is situated at the angle of a re-entrant " V " of about 120 degrees. On advancement of the bridge 15 in either direction sludge is directed towards the mouth of each draw-off pipe 21. In a modification, Figs. 6 and 8 (not shown), the pyramidal superstructure 23 is omitted and each scraper unit 21 comprises two opposed pairs of mutually divergent plates 22a edged with replaceable rubber blades 25 and connected together with their free ends in spaced overlapping relationship.
Patent GB-1053353-A (GB)
IPC: F16H63/34
Abstract: 1,053,353. Change-speed control. FORD MOTOR CO. Ltd. July 16, 1965, No. 30240/65. Heading F2D. A gear selector mechanism for a four-speed and reverse synchromesh gear-box, Fig. 1, not shown, comprises a rod 66 slidable axially and rotatably mounted in the gear-box and carrying two members on opposite sides of a pin 103, each member having a fork in engagement with a gear coupling element. A lever 67 pivoted at 69 operates a reverse gear coupling element on shaft 57. The two members and lever 67 have extensions 87, 89, 95 each having a recess 97, 99, 101 which lie in a common plane radial to rod 66 when the members and lever are in a neutral, gear-disengaged position. An interlock lever 105 pivoted to the gear-box at 106 has an aperture 107 embracing rod 66 and a narrower aperture 109 into which the pin 103 extends. Rotation of rod 66 brings pin 103 into one of the recesses 97, 99, 101 and then axial movement of rod 66 moves the appropriate member or lever 67 to engage a desired gear; with pin 103 in recess 99 the lever 105 prevents axial movement of lever 67 and extension 87 and the lever 105 similarly prevents movement of the other members or lever when rotated by pin 103 as it engages recess 97 or 101. Stops, not shown, prevent the pin rotating beyond recess 97 or 101 and the extension 89 prevents movement in the opposite direction when a gear is engaged.
Patent GB-1054538-A (GB)
IPC: B22D11/128
Abstract: 1,054,538. Continuous casting. KOPPERS CO. Inc. July 12, 1965 [Oct. 16, 19641, No. 29516/65. Heading B3F. In a method of continuous casting in which the casting 17, Figs. 1 and 2 (not shown) is formed in a vertical reciprocating straight mould 13 and is then guided and supported in an arcuate path below the mould, the point of tangency A between the vertical axis of the mould and the arcuate axis of the guiding and supporting means lies within the mould. In operation the point of tangency is arranged to coincide with the position in the mould where the solidified casting shrinks from the mould walls. The mould is provided with cooling means and the casting is cooled by sprays 27 positioned between the rollers 19 of the supporting means. The casting is brought into a horizontal path by the supporting means and subsequently passes through straightening apparatus 21.
Patent GB-1143792-A (GB)
IPC: D01H9/02
Abstract: 1,143,792. Donning and doffing apparatus; peg-boards. DEERING MILLIKEN RESEARCH CORP. 8 July, 1966 [12 July, 1965], No. 30858/66. Headings D1D, D1F and D1J. Apparatus for donning and doffing bobbins to and from textile machines comprises a conveyor formed with a number of pockets, a pegboard adjacent a lateral edge of the conveyor, the pegs on which are alined with the pockets, means to rotate the peg-board, and means to push the empty bobbins from the pockets on to the pegs. The bobbins so arranged on the peg-board may be transferred to the machine by grippers. Such grippers may also transfer filled bobbins from the machine to the pegboard, a plate associated with the peg-board acting when the board is rotated, to remove the filled bobbins from the pegs and transfer them to the pockets. In Fig. 1, bobbins in pockets on a conveyor 1 are brought opposite pegs 5 on a board 4, when the conveyor is stopped by a limit switch, and pushed on to the pegs by a pusher 6, the bobbins extending beyond the edge of the conveyor towards the pusher. The board is now rotated through a right angle; the pegs are equal in number and spacing to the spindles to be donned and to grippers (7, Fig. 2, not shown), which are lowered on to the bobbins to transfer them to a spindle. When the apparatus is to be used for collecting filled bobbins, a pivoted plate 8, Fig. 3 is lowered over the board 4 and the filled bobbins transferred to the pegs which extend through slots 10 in the plate by the grippers. The board is now rotated through a right angle, so that the bobbins are removed from the pegs to the pockets in the conveyor owing to the downwardly curved shape of the part of the plate when the slots are situated.
Patent GB-1227963-A (GB)
IPC: G05F1/455
Filed: 1968-06-13
Abstract: 1,227,963. Balancing three-phase systems; control of A.C. motors. GENERAL ELECTRIC CO. 13 June, 1968 [7 July, 1967], No. 28264/68. Headings H2H and H2J. A balanced three-phase system includes a pair of back-to-back thyristors or a triac in each of two of the phase lines. The gating of the thyristors is controlled by a synchronizing circuit so that one line is gated in advance of its phase and the other line is gated after its phase. The system may be used to control an induction motor. In the circuit shown, the firing angles of the thyristors 15, 17, 23, 25 are adjusted by a control input 107 feeding trigger circuits 97, 99. Synchronizing signals are fed to the trigger circuits from a three-phase transformer 95, and further transformers 91, 93, whose primaries are connected across phase lines 2 and 3 and phase lines 1 and 2 respectively, adjust the timing of the gate signals from the trigger circuits 97, 99. In the example shown, transformer 93 advances the signal from circuit 99 by 30 degrees, and transformer 91 delays the signal from circuit 97 by the same amount. The system is particularly applicable to controlling the speed of induction motors in that it eliminates single phase currents at large retard angles, and also moves the point of maximum unbalance to small retard angles where it is least important.
Patent GB-1227999-A (GB)
IPC: G08C19/16
Filed: 1968-04-08
Abstract: 1,227,999. Cue signalling. KOKUSAI DENKI K.K. 8 April, 1968 [8 April, 1967], No. 16826/68. Headings H4L and H4R. In a method of signalling, e.g. for controlling the operation of a reproducer, of the type described in Specification 1,152,397 in which a tone is transmitted whose frequency is varied cyclically in a sawtooth manner and the receiver includes a filter whose pass band is smaller than the frequency deviation of the transmitted signal so the filter output comprises pulses as the transmitted frequency sweeps across the filter pass band, the variation in transmitted frequency is made to follow an intermittent sawtooth, as shown in Fig. 2B, with the signal suppressed, or shifted in frequency, during the intervals between the sawteeth. The arrangement allows the use of a wider bandwidth, cheaper, filter in the receiver. The intermittent sawtooth waveform of frequency deviation may be obtained either by gating out portions of a regular sawtooth deviated wave, or by modulating the transmitter oscillator frequency with the output of a multivibrator or blocking oscillator having a waveform as shown in Fig. 5. Receiver, Fig. 8, comprises a mechanical filter 14 which passes pulses of signal frequency as the received frequency passes across the filter band. The pulses of A.C. are rectified in transistor 12 and operate a relay 15 whose contacts are connected in the charge-discharge circuit of capacitors C2 and C3 so that transistor 13 conducts to operate relay 16, which holds over contacts 16-1, if a predetermined number of pulses are detected by relay 15 within a predetermined time. Contacts 16-2 are connected in the circuit to be controlled by the cue signal.
Patent GB-1229877-A (GB)
IPC: C08F4/40
Filed: 1968-09-24
Abstract: 1,229,877. Coated paper. UNIROYAL Inc. 24 Sept., 1968 [12 Oct., 1967; (2)], No. 45402/ 68. Heading B2E. [Also in Divisions C3 and H1] Paper is coated with an aqueous composition comprising a sulphonate-terminated telomer of the formula: where M is a cation, R<SP>1</SP> ,  R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are hydrogen methyl or ethyl, X is one or more hydrophobic groups, Y is one or more hydrophilic groups, a+b is from 10 to 100 and a/a+b is from 0 to 0.6. The exemplified telomers are the sodium sulphonate-terminated acrylonitrile-potassium acrylate, acrylonitrileacrylic acid, and acrylamide-potassium acrylate co-telomers.
Patent GB-1230237-A (GB)
IPC: A43D71/00
Filed: 1969-09-11
Abstract: 1,230,237. Nail feeding. BRITISH UNITED SHOE MACHINERY CO. Ltd. 11 Sept., 1969 [12 Sept., 1968], No. 44805/69. Heading B4C. [Also in Division B8] In a device for feeding tacks, for example to a tack separator, in a shoe-making machine, the tacks received via an opening 19 in a lid 17 are blown by air introduced via an inlet 21 through a tube 22 to a region at which they are deflected by recess 25 towards a raceway 24. Misaligned tacks are removed from the raceway by a shoe 27 or by a brush 28 which is pivotable about axis of shaft 33. The device illustrated includes two compartments divided by a wall 14 and each having associated therewith a tube 22, an air inlet 21, a raceway 24 and a recess 25. The lid 17 is provided with two inlet openings 19 and both recesses 25. As an alternative the lid may have a deflector attached thereto instead of a recess 25. The walls 12-14 and base 11 are preferably a single metal casting and walls 15, 16 are preferably of transparent material, e.g. polymethyl methacrylate screwed on to the metal casting. All the walls preferably converge toward the base.
Patent GB-1230737-A (GB)
IPC: F27D3/14
Filed: 1970-03-12
Abstract: 1,230,737. Removal of slag from furnaces. INVA A.B. 12 March, 1970 [12 March, 1969], No. 12051/70. Heading F4B. Apparatus for removing slag from an arc furnace comprises a suction pipe 6 sloping upwardly from its mouth 5 and discharging via an extension 11 into a tiltable container 12 acting as a gas seal, said extension 11 being connected at 8 to a vacuum source. A propeller 7 on each side of pipe 6 moves slag and metal towards the mouth 5 which has a pair of collecting baffles (9, Fig. 2) disposed to form a V in front of the mouth. The pipe 6, made of refractory material, graphite or steel, encased in a steel pipe 16 and protected from the furnace heat by insulation 17, is detachably carried with the propellers 7 by a fork lift truck. In a modification (Figs. 3 and 4), the suction pipe slopes upwardly throughout to a hood over a ladle carried by a fork lift truck, the hood being connected to a vacuum source. Towards the end of the process, the vacuum is lessened, so that any metal picked up drops back down pipe 6 without entering container 12 or the ladle.
Patent GB-1234136-A (GB)
IPC: C08L27/16
Filed: 1969-05-19
Abstract: 1,234,136. Fluorine-containing polymer compositions. PENNWALT CORP. 19 May, 1969 [20 May, 1968], No. 25338/69. Heading C3P. A self-lubricating fluorocarbon polymer composition comprises a substantially uniform blend of (i) from 40 to 75% by weight of vinylidene fluoride polymer, (ii) from 10 to 35% by weight of tetrafluoroethylene polymer and (iii) from 5 to 30% by weight of one or more telomers of the formula R-(CF 2 CF 2 ) n -X where R is a C 1 -C 4  perfluoroalkyl or monochloroperfluoroalkyl radical, n is an integer of from 6-16, and X is chlorine, fluorine or iodine, and wherein the percentages are based on the total weight of the three components. In the examples the compositions comprise polyvinylidene fluoride, polytetrafluoroethylene, fluorotelomer waxes of formulµ (CF 3 ) 2 CF- (CF 2 CF 2 ) n Cl and (CF 3 ) 2 CF(CF 2 CF 2 ) n I, glass fibres and zinc oxide.
Patent GB-1238329-A (GB)
IPC: G03F7/09
Filed: 1968-08-16
Abstract: 1,238,329. Photographic process. INTERNATIONAL BUSINESS MACHINES CORP. Aug. 16, 1968 [Sept.11, 1967], No.39218/68. Heading G2C. A method of producing photo-resist images comprises coating a support with a layer of photoresist and then with a layer of vinyl butyral polymer or copolymer, imagewise exposing and developing to remove all of the over-coat and the soluble areas of the light-sensitive layer. The over-coated layer is preferably a terpolymer of vinyl butyral, vinyl alcohol and vinyl acetate. The light-sensitive layer may be polyvinyl cinnamate and 1 -methyl-2-benzoylmethylene-beta-naphthothiazole or an azide with a polystyrene, styrene/ butadiene copolymer, polycis-1, 4-isoprene, or polyvinyl alcohol as binder. The developer may be an aromatic hydrocarbon.
Patent GB-1239262-A (GB)
IPC: C07C13/43
Filed: 1968-10-21
Abstract: 1,239,262. Norbornene derivatives. SUMITOMO CHEMICAL CO. Ltd. 21 Oct., 1968 [25 Oct., 1967; 23 Jan., 1968 (2); 24 Jan., 1968], No. 49901/68. Heading C2C. [Also in Division C5] Endo- and exo-α,α-dimethyl-5-norbornene-2- methanol in the ratio 9: 1 are obtained by Diels- Alder reaction of cyclopentadiene with isoprene alcohol (i.e. 2-methyl-3-butene-2-al). Cyclopentadiene may be used as its dimer. Suitable conditions are 150-250 C. and with hydroquinone present as polymerization inhibitor. It is stated that gas-phase dehydration of these alcohols in the presence of active alumina (see Division C5) results in dehydration only of the exo-isomer, the endo-isomer being converted to an inner ether having the formula Reference has been directed by the Comptroller to Specification 1,161,176.
Patent GB-1251370-A (GB)
IPC: C03B33/04
Filed: 1968-11-15
Abstract: 1,251,370. Template followers. PERMAGLASS Inc. Nov.15, 1968 [Feb. 5, 1968], No. 54207/69. Divided out of 1, 251, 364. Heading G3N. [Also in Division C1] Pattern follower apparatus for following the periphery of a pattern such as pattern 66 of a glass cutting and grinding machine in which sensing means 140 cutting tool 128 and grinding wheel 117 are all vertically aligned and mounted on U member 123 for movement controlled by motor 134 in an arc about axis 119 and towards or away from the pattern 66 by means of cylinder 114, comprises as the sensing means 140, first and second photo-cells or light sensing means 141, 142, on other sensors each having an output proportional to the position relative to the periphery 143 of the pattern 66, which may be of aluminium, thick paper or other suitable material, white one side of line 143 and black the other, means to sense the difference in output for the sensors 141, 142 for controlling the movement of the sensors in an arc about axis 119 to maintain the sensors at a predetermined constant angle relative to the periphery 143 and means for moving them towards and away from the periphery 143 responsive to the output of one of the sensors 142. The apparatus forms part of one embodiment disclosed in Specifications 1,251,364, 1,251,365, 1,251,366, 1,251,367, 1, 251,368 and 1, 251,369.
Patent GB-1252591-A (GB)
IPC: G01T1/04
Filed: 1968-02-12
Abstract: 1,252,591. Ionization manometers; ion pumps; cold cathode tubes. SCIENCE RESEARCH COUNCIL. 20 March, 1969 [12 Feb., 1968], No. 6889/68. Heading H1D. [Also in Division G6] A dosimeter for measuring a radiation dose, e.g. of gamma-rays or protons, is formed by a discharge tube having, within the tube, a material which evolves a gas when irradiated by the radiation to be measured, and electrodes by the use of which, when connected in a suitable circuit, the gas pressure may be determined. As shown, the tube contains polyethylene film or powder 2, which evolves hydrogen upon irradiation, and a thermionic cathode 5 and collector electrode 6 which are connected in the circuit shown to form an ionization gauge, upon the termination of the irradiation, the initial reading of the milliammeter 8 being a measure of the hydrogen pressure and hence of the integrated dose. If the circuit is kept closed for a period thereafter the hydrogen is cleaned up by ion pump action to return the device to its initial condition. In a modified device (Fig. 2, not shown) electrodes 5 and 6 are replaced by a pair of spaced electrodes, and the gas pressure is determined by measuring the breakdown voltage. The polyethylene may be pre-irradiated to raise its melting point. Reference has been directed by the Comptroller to Specification 1,188,933.
Patent GB-1264494-A (GB)
IPC: G03G9/097
Filed: 1969-04-30
Abstract: 1,264,494. Electro-photographic fixing. RICOH K. K. April 30, 1969 [April 30, 1968], No. 21936/69. Heading G2H. Electro-photographic toner images in which toner comprises a pigment, a thermoplastic binder and a substance having a dielectric loss factor substantially higher than that of the pigment and the binder and which when molten acts as a solvent for the binder, are fixed by applying a high frequency electric field which melts said substance. Preferably the binder is a styrene or methacrylate polymer or copolymer, the substance is acetanilide, α-naphthol, o-acet-toluidide, 4-nitrodiphenyl and/or 2-naphthylamine, the toner particles are 0À5-30Á and the field is applied by a tuned cavity resonator.
Patent GB-1266100-A (GB)
IPC: F16D67/00
Filed: 1970-09-15
Abstract: 1,266,100. Change-speed gear; locating band brakes. DAIMLER-BENZ A.G. 15 Sept., 1970 [27 Sept., 1969], No. 44022/70. Headings F2D and F2E. Brake bands 9, 10 and 11 of an automatic change-speed gear 30, 31, 32 are separately located in a gear casing 5 by a plastics brakeband guide 1 releasably secured in the casing 5 by means of dovetail edges 4, formed at each side of the guide 1, which engage complementary dovetail recesses in the casing 5, the guide 1 being wedge-shaped longitudinally along the axis of the casing 5 and retained in position by a projection 20 on an adjacent clutch-casing 21 engaging an end recess 19 in the guide 1.
Patent GB-1266522-A (GB)
IPC: G03B27/44
Filed: 1969-08-18
Abstract: 1,266,522. Simultaneous photo-copying; fibre optics. NIPPON SELFOC K.K. Aug. 18, 1969 [Aug.21, 1968], No.41185/69. Headings G2A and G2J. [Also in Division Cl] In order to obtain, simultaneously, a plurality of reduced copies of an original 6, an optical fibre bundle 5 having planar end faces is provided be-  tween the original and photo-sensitive material. Each optical fibre is made of glass having a refractive index distribution in a cross-section thereof which satisfies ' n = n o (1 - ar<SP>2</SP>)  where n o  is the refractive index at the centre point of the cross-section, n is the refractive index at a distance r from the centre point, and a is a positive constant. Each optical fibre transmits a reduced image along itself to the photosensitive material which may contact one end-face or be spaced therefrom by a glass plate (10), Fig. 3 (not shown) or by an air-gap. A lens may be inserted between the original and the nearest end-face thereto. The original is reduced to 1/500th size, and the array of images obtained may be used to give an array of integrated circuits.
Patent GB-1288938-A (GB)
IPC: H03K9/06
Filed: 1969-07-25
Abstract: 1288938 Antiskid braking systems MULLARD Ltd 22 June 1970 [25 July 1969] 37575/69 Heading F2F [Also in Division H3] In an anti-skid braking circuit pulses with a repetition rate proportional to wheel speed, derived by means of coil L, e.g. from a magnetic toothed wheel rotatable with the wheel, are applied to a pulse rate discriminator of the cup- and-bucket type, comprising transistors Ta, Tb (see Division H3). Capacitor Cb removes unwanted interference in the output from coil L. The output from the pulse rate discriminator, comprising a voltage proportional to wheel speed, is applied via a differentiating circuit comprising capacitor Ce and resistor Rk to the base of transistor Tc which is normally conductive: at a given rate of wheel deceleration a sufficiently large negative voltage is applied to transistor Tc to cut it off. Transistor Td is thereby rendered non-conductive, causing the base potential of transistor Te, which is normally non-conductive, to rise and render it conductive. Diode De provides temperature compensation, and variable resistor Ro is provided to adjust the level at which switching action occurs. The voltage across emitter resistor Rp is amplified by transistor amplifier Tf, Tg to provide a current in solenoid S which operates control valve means of the anti-lock brake system. Diode Df serves to clip overshoot voltage on solenoid S when it is switched off, which occurs after a predetermined period, due to the capacitive coupling provided by capacitor Ce. Alternatively a time-constant independent of that of the differentiating circuit Ce, Rk, which is determined by differentiation considerations, may be provided by using resistance-capacitance coupling to the base of transistor Te. In this case, if transistors of high gain are used, transistor Tc may be dispensed with.
Patent GB-1290901-A (GB)
IPC: C07D307/12
Filed: 1969-11-06
Abstract: 1290901 Water-insoluble monoazo dyestuffs CIBA GEIGY AG 6 Nov 1969 [7 Nov 1968] 54501/69 Heading C4P [Also in Division C2] The invention comprises azo dyestuffs which contain no water-solubilizing groups which dissociate to give acids in water, and are of the formula  where A is a carbocyclic aryl radical having at least one electron-attracting substituent, or a heterocyclic aromatic radical, X and Y are each, independently, hydrogen, C 1-5  alkyl, C 1-5  alkanoylamino -NHCOH or halogen, Z is acyl and R is optionally substituted C 1-5  alkyl, cycloalkyl, aralkyl or aryl. The dyes of Formula I may be prepared by diazotizing amines of formula A-NH 2  and coupling with compounds of Formula III or by reacting a compound of Formula I in which Z is hydrogen with an acylating agent. Reference has been directed by the Comptroller to Specification 894,012.
Patent GB-1296452-A (GB)
IPC: C07C319/14
Filed: 1970-03-19
Abstract: 1296452 2-Mercaptoethanol BADISCHE ANILIN- & SODA-FABRIK AG 19 March 1970 [21 March 1969] 13222/70 Heading C2C 2-Mercaptoethanol is prepared by reacting ethylene oxide with H 2 S in a molar ratio of about 1:1 in the presence of bis-(#-hydroxyethyl) thioether as solvent at elevated temperature and pressure in a single liquid phase under conditions of temperature and pressure such that no gas phase forms in the reaction mixture. A tubular reactor is suitable.