baber/WOPTO huggingface dataset:
Patent GB-1268178-A (GB)
Title: Improvements relating to apparatus for supplying molten metal to a continuous casting machine
IPC: B22D11/10
Filed: 1970-09-21
Abstract: 1,268,178. Tundishes. CONCAST A.G. 21 Sept., 1970 [1 June, 1970], No. 44928/70. Heading F4B. A preferably cylindrical tundish 1 is provided with two angularly spaced pouring devices, each comprising an orifice 2 or 2<SP>1</SP>, a slide nozzle 3 or 3<SP>1</SP> and a pouring tube 8 or 8<SP>1</SP>, which are alternatively rotated to an operating position above a continuous casting mould 7, to allow the device in the inoperative position to be replaced. End bearing rings, or encircling girth rings (not shown) may be used to rotate the tundish. Steel from ladle 14 is charged to the tundish through opening 16. An overflow 18 is provided in the end wall of the tundish. The angular spacing 11 of the pouring devices, which is over 90 degrees and preferably about 100 degrees is not less than the angular extent 17 of charging opening 16 which is preferably about 80 degrees. Examples of the tundish dimensions are given. A retractable launder (Fig. 3, not shown) may be provided to deflect metal teemed from ladle 14 into charging opening 16. Electric or gas fired means (Fig. 4, not shown) may be provided to preheat the inoperative pouring device. The ladle 14 may be moved horizontally when the tundish 1 is rotated to continue to charge steel through the opening in its alternative position 16<SP>1</SP>, and/or a system of retractable launders (not shown) may be used to deflect the steel flow to the position 16<SP>1</SP>. The tundish may be liftable and lowerable.
Patent GB-1057624-A (GB)
Title: Scanning mechanism
Inventor: LINDBERG PER JOHAN
IPC: H04N3/06
Filed: 1963-11-15
Abstract: 1,057,624. Television optical scanning apparatus. AGA A.B. Nov. 15, 1963, No. 45167/63. Heading H4F. A scanning mechanism for receiving electromagnetic radiation in the visible or infra-red portion of the spectrum comprises a planeparallel refractive prism 1 of polygon shape with an even number of sides which is rotated about an axis 2, a collecting refractive system (not illustrated) which has an image surface 5 located within the prism and the optical axis X of which intersects axis 2, an aperture 6 situated substantially on said optical axis and located just outside the circle 3 generated by the rotating prism and a radiation responsive element (e.g. a photo-electric cell or bolometer) positioned behind aperture 6. When prism 1 rotates, the aperture scans a line in the image surface 5 and when a corner of the prism passes the aperture a momentary retrace occurs. A second component of scan perpendicular to the direction of the first scan may be introduced by including an oscillating mirror in the collecting system or by tilting the axis of rotation 2 of the prism. The Specification discusses the form of image surface 5 that is required if the field is to be scanned without aberration for various values of refraction index for the prism. It is shown that the refractive index should be greater than 2, preferably between 3 and 6 with an optimum value of 4. This requires a substantially plane image surface which the collecting system can readily provide. The side of the prism may be coated to reduce reflection and the corners of the prism rounded to reduce air resistance. The signal derived from the radiation responsive clearcut is applied to modulate the scan intensity in a cathode ray tube scanned in two directions, synchronously with the two scanning components produced by the scanning mechanism.
Patent GB-1114197-A (GB)
Title: Process for preparing poly ª-amino carboxylic acids
IPC: C08G69/08
Filed: 1966-10-11
Abstract: Polymers of b -aminocarboxylic acids are prepared by heating an a ,b -ethylenically unsaturated nitrile with 0.8-1.5 mols, per mol of nitrile, of water at 100-250 DEG  C. in a closed vessel in an atmosphere of an inert gas.  Suitable nitriles include acrylonitrile, methacrylonitrile and crotononitrile, which yield, respectively, poly - b  - alanine, poly - a  - methyl - b  - alanine and poly-b -methyl-b -alanine.  The reaction may be catalysed by Cu, Ag, Zn, Cd, Fe, Co, Ni, Ru, Rh or Pd, or an oxide, sulphide or inorganic or organic salt of such a metal, or by an ammonium or amine salt of an inorganic or organic acid. The reaction mixture may also contain a surfactant, e.g. alkylbenzene sulphonates, polyalkylene ethers or quaternary ammonium salts, an organic liquid diluent, and an intermediate product obtained in a process of the invention. The polymers obtained can be formed into fibres, films and other shaped articles.
Patent GB-1147273-A (GB)
Title: An arrangement for the continuous contacting of a gaseous phase with a solid substance dispersed in a liquid
Inventor: ULBRECHT JAROMIR
IPC: B01F3/04
Filed: 1967-10-05
Abstract: 1,147,273. Gas/liquid/solid contact apparatus. CESKOSLOVENSKA AKADEMIE VED. 5 Oct., 1967 [5 Oct., 1966], No.45399/67. Heading B1F.  In an apparatus for contacting gas with a solid/liquid suspension, gas introduced at 8 rises into tubes 3 carrying with it solid/liquid suspension introduced at 9 thus effecting good contact. The contacted suspension leaves at 10, and gas leaves at 4.
Patent GB-1028988-A (GB)
Title: Shell coupling assembly for cast-in-place pile and method of forming same
IPC: E02D7/30
Filed: 1964-11-09
Abstract: 1,028,988. Pipe couplings. W. W. MOUNT. Nov. 9, 1964 [Nov. 15, 1963], No. 45642/64. Heading F2G. [Also in Division E1] In a cast-in-place pile assembly a driving ring 60 has a longitudinal sleeve extension 61 provided with an annular groove 62 which cooperates in frictional engagement with a bead 66 formed in the lower shell section 65. The upper shell section 63 rests upon the body of the driving ring to which it is welded at 64. In other embodiments of the coupling the lower shell may be welded to the driving ring, the annular bead may be on the sleeve of the driving ring and the annular groove may be on the upper shell section.
Patent GB-1019578-A (GB)
Title: Polyols from diphenyl ethers
Inventor: TRAPP WALTER BERNARD
IPC: C08G18/48
Filed: 1962-12-04
Abstract: The invention relates to compounds having the formula <FORM:1019578/C2/1> wherein Ar is a phenyl group, R1 and R2 are H or methyl or ethyl groups, m is an integer from 1 t0 40, an n is an integer from 1 t0 4. Com pounds claimed per se are 4,41-Di-(2-hydroxy propoxymethyl) diphenyl ether. 4,41-Di-(2-hy droxyethoxyethoxymethyl) diphenyl ether. 4,41 Di - (2 -hydroxyethoxyethoxyethoxyethoxy methyl) diphenyl ether.  The compounds are prepared by reacting a halomethyl - or polyhalo methyl-diphenyl ether or a hydroxymethyl- or polyhydroxymethyl-diphenyl ether, wherein the ether contains from 1 to 3 halomethyl groups or from 1 to 3 hydroxymethyl groups per diphenyl ether moiety, with, respectively, an excess of an alkylene or polyalkylene glycol or mixtures thereof containing at least 5 moles of hydroxyl per mole of halomethyl groups, or an alkylene oxide, e.g. propylene oxide or ethylene oxide or mixture thereof.  In an example 4,41-di-chloro-methyl) diphenyl ether is condensed with ethy lene glycol to produce 4,41-di-(2-hydroxyethoxy methyl) diphenyl ether.ALSO:Parasiticidal compositions comprise as active ingredient compounds of the general formula <FORM:1019578/A5-A6/1> wherein Ar is phenyl group, R1 and R2 are H, Me or Et, M = 1-40 n = 1-4 and may be used in solvent solution, oil-in-water or water-in-oil emulsion or aqueous dispersions. Specified active ingredient is 4, 41-di (2 hydroxy ethoxy methyl) diphenyl ether.
Patent GB-1379269-A (GB)
Title: Semiconductor device manufacturing process
IPC: H01L21/8229
Filed: 1972-10-04
Abstract: 1379269 Semi-conductor devices INTERSIL Inc 4 Oct 1972 [13 July 1972] 45765/72 Heading H1K A method for diffusing impurities of the same conductivity type into different regions of a semiconductor body to produce different dopant concentrations using a single accurately aligned mask comprises producing an apertured mask 13 on an oxide layer on a semi-conductor body surface, etching the oxide to a predetermined depth, Fig. 1c, marking some of the holes, and continuing etching of the remaining holes, Fig. 1E until a desired oxide thickness remains on the body surface. Further holes may then be masked and the remaining holes may be extended, by etching, to the body surface, Fig. 1G, where a heavy dopant concentration may be produced by diffusion into the body to form, for example, an isolation region. The masking may then be removed, and the previously masked holes extended until they also reach the body surface. A lighter doping concentration may then be diffused into the newly-exposed region and also into the heavily doped first region. Three apertures 21, 22, 23 may be used to produce respectively an isolation region, a base region and a resistive region. The depth at which etching is stopped may be determined by the colour of the oxide thereat. The advantage of small masks, e.g. 24, covering the unfinished holes is that alignment is not critical. A further region of the opposite conductivity type may be diffused into the isolation region, through the same aperture, to form a conductive strip for interconnection purposes as described and claimed in Specification 1,379,270. The body may be of silicon, the oxide silicon oxide, and aluminium may be used to interconnect regions to form an integrated circuit for memory applications.
Patent GB-1507260-A (GB)
Title: Flexure compensated rolls
IPC: D21G1/02
Filed: 1976-11-04
Abstract: 1507260 Rollers ESCHER WYSS Ltd 4 Nov 1976 [4 Nov 1975] 45958/76 Heading F2U A flexure-compensated roller comprises a tube 28 for supplying pressure fluid to the hydrostatic support element(s) 6 of the roll shell 5, and a duct 37 in the stationary beam 1 for discharging the spent fluid from the space 17 to an annular outlet passage 35 and pipe 36. A scoop 31 fixed to the beam directs the fluid to passage 35 and operates for one direction of rotation (Figs. 2 or 5) or both (Fig. 4). Flexure in one plane only is effected by a guide ring 13.
Patent GB-1485285-A (GB)
Title: Electrophotographic system
IPC: G03G15/02
Filed: 1974-10-24
Abstract: 1485285 Electro-photographic apparatus MITSUBISHI DENKI KK 24 Oct 1974 [24 Oct 1973 28 Dec 1973] 46073/74 Heading G2H An electro-photographic apparatus having a precharging device 20 for charging a multi-layer electrophotographic plate 12 on a rotatable drum to a given potential before irradiation comprises a light irradiating device, a light flushing device and a roller transfer device. The pre-charging device 20 comprises a charger 21 including a casing 22 housing two wire corona electrodes 23 and a netting electrode 24. An electric source 26 is connected to electrodes 23 and a source 30 biases the netting electrode 24. The plate 12 has a conductive base layer 13, a photo-conductive layer 14 and a transparent dielectric layer 15. Several materials and thicknesses are given for these layers. Graphs are disclosed relating e.g. to pre-charging time and bias voltage and thickness of the layers 14, 15. The netting electrode 24 may be stainless steel or nickel and the wire electrodes 23, tungsten, molybdenum or titanium. In a second embodiment a chargetime determining constant is reduced by using a further flushing light simultaneously with the precharging device 20.
Patent GB-1500407-A (GB)
Title: Transistor amplifiers
IPC: H03F1/30
Filed: 1975-11-06
Abstract: 1500407 Transistor amplifier SONY CORP 6 Nov 1975 [15 Nov 1974] 46092/75 Heading H3T In a single ended push-pull amplifier with an output terminal 9 fed by complementary triodelike FET's 27, 28, e.g. constructed as Fig. 1 (not shown) and with characteristics as Fig. 2 (not shown), fed from two cascaded differential amplifiers 6, 7 and 16, 17, the effects of variation of the FET supply voltage V CC1  are compensated by change in bias voltage to the respective gates, applied by injecting the FET supply voltage into one of the amplifiers. The first differential amplifier, fed with constant current via current mirror source at transistor 12 receives A.C. signal at 8 and passes the p.d. across one of the matched loads 14, 15 to the second differential amplifier, having collector currents equalized by second current mirror circuit at transistor 19. The output from transistor 16 appears in the same phase at A and B, differing by a bias voltage dropped across resistor 20. The gates of FET's 27, 28 are fed optionally directly from A and B or via emitter followers 23, 25 with emitter leads crossed as shown to opposite supplies V CC1  and the collectors to supplies V CC2 , or (Fig. 4, not shown) with crossed base leads and with collectors to supplies V CC1  and emitters via resistors to opposite supplies  V CC2 . A compensating signal from + V CC1  to the current source of the first differential amplifier changes the bias voltage across resistor 20 to correct for changes in V CC1  to maintain the operation of the FET's correctly in class B. Based on the constancy from one FET to another of k, being the product of cutoff voltage V P  (gate to source voltage for zero current at fixed drain-source voltage) and amplification factor, if: where I is the current through resistor 20, equal to - 2 V P /R 20  then the compensation for variation of supply voltage V CC1  will remain correct in spite of variation of the FET's. Alteration in k due to change of operating point can be allowed for by variation of resistor 10, possibly with a Zener diode in series. Negative feedback is provided from output 9 to transistor 2.
Patent GB-1433472-A (GB)
Title: Biphenylyl ethers and their preparation
IPC: C07D295/08
Filed: 1974-10-25
Abstract: 1433472 Biphenylyl ethers MERCK PATENT GmbH 25 Oct 1974 [31 Oct 1973] 46221/74 Heading C2C Novel biphenylyl ethers of the general formula wherein R<SP>1</SP> is H or CH 3 , Z is a C 2-8  dialkylamino, morpholino, pyrrolidino, piperidino or homopiperidino group, the pyrrolidino, piperidino or homopiperidino group being optionally substituted by a hydroxyl group and R is a biphenylyl group which is mono- or poly-substituted by F, Cl, Br, I, CF 3 , NO 2  or piperidino or a biphenylyl group when R<SP>1</SP> is CH 3  and/or Z is a homopiperidino, hydroxypyrrolidino, hydroxypiperidino or hydroxyhomopiperidino group, and physiologically acceptable acid addition salts thereof are prepared by reacting a compound of the general formula in which Y is a group of the formula in which X is Cl, Br or I or a free or functionally modified OH group, with H-Z, followed optionally by salification of a resulting free base with an acid or conversion of a resulting acid addition salt to the free base by treatment with a base. Pharmaceutical compositions, useful in the treatment of hyperlipoproteinaemia and the treatment and prophylaxis of cardiac and vascular diseases, comprise, as active ingredient, at least one biphenylyl ether of the first general formula above or physiologically acceptable acid addition salt thereof, and an inert, physiologically acceptable carrier.
Patent GB-1186149-A (GB)
Title: Making Cast Steel Railway Wheels
IPC: C21D9/34
Filed: 1968-09-30
Abstract: 1,186,149. Heat-treating steel wheels. AMSTED INDUSTRIES Inc. Sept. 30, 1968 [Oct.18, 1967], No.46323/68. Headings C7A and C7N. A railway wheel cast from steel containing in percentage by weight:- C 0À4 to 0À85 Mn 0À5 to 0À9  Si 0À25 to 0À5 P, S not more than 0À05 each Fe balance is cooled to a temperature within the range 1250‹F. to room temperature, heated to the normalizing temperature e.g. about 1700‹ F. and is then cooled until the entire wheel has reached 1200‹ F. or e. g. 1150‹ -1200<SP>‹</SP> F., the ends of the hub section being covered with insulating material while the remainder of the wheel is allowed to cool in the atmosphere. The insulating material may be in the form of caps covering the ends of the hub section; alternatively cooling may take place while the wheels are on a conveyer over which there is located a strip of material spaced slightly above the upper end of the hub section. Additionally in this latter method a heating element, induction coil or gas flame may be incorporated in the cover strip to retard cooling of the hub.
Patent GB-970883-A (GB)
Title: Washing, cleaning, wetting and foaming agents
IPC: C11D1/94
Filed: 1961-12-28
Abstract: Detergent compositions comprise (a) a surface active sulphobetaine in which the N atoms and the sulphonic acid group are separated by 3 or 4 carbon atoms, preferably of formula <FORM:0970883/C4-C5/1> wherein Z is a C8-20-, preferably a C12-18-, straight or branched chain aliphatic or cycloaliphatic hydrocarbon group which may be saturated or unsaturated and linked directly or through intermediate groups to the N atom, R1 and R2 are aliphatic groups with at most 5 carbon atoms each and may be combined with each other, with or without a heterocyclic group, to form a ring, R3 and R4 are hydrogen or aliphatic hydrocarbon groups of at most 3 carbon atoms, and n is 2 or 3; and (b) a sulphate or sulphonate detergent compound other than (a), (a) comprising at most 50% by weight of (b).  The preferred sulphobetaines (a) are those derived by reacting C12-18-alkyl dimethyl amine with 1,3-propane- or 1,3-butane-sultone. Detergents (b) are suitably sodium, potassium or mono-di- or triethanolamine alkyl sulphonates, sulpho fatty acid salts and their esters, alkyl sulphates, alkylbenzene sulphonates, sulphodicarboxylic acid esters such as sulphosuccinate esters, tetrapropylenephenylethyl sulphates, alkylphenoxyethyl- and -polyalkenoxyalkanol sulphates, fatty alkyl glyceryl ether sulphonates, fatty acid mono- and diglyceride sulphates, and fatty acid alkanolamide sulphates; the preferred detergents are sodium C12-18-fatty alkyl sulphates and tetrapropylene benzene sulphonate. In general, the composition comprises, by weight, 5-75%, preferably 10-35%, of (b), but where fatty alkyl sulphate is present, the sulphate preferably comprises less than 50% of the total (b) but should at least equal the amount of (a) present; 0.5-50%, preferably 1-10% (referred to (b)) of (a), but at least 0.5% and preferably 1-5% referred to the total composition; 0-70%, preferably 10-50%, of alkali metal carbonates, bicarbonates, silicates or phosphates; 0-70%, preferably 5-40%, of condensed phosphates such as pyro-, poly- and meta-phosphates; 0-3.5%, preferably 0-3% sodium perborate; 0-15%, preferably 3-10%, magnesium silicate as a stabilizer if a per compound is present; 0-20%, preferably 0-10%, of acid ortho- or pyro-phosphates, boric, citric, oxalic, lactic, glycolic or tartaric acid, or sodium bisulphate; and 0-2%, preferably 0.2-1.5%, of glue, gelatin, salts of polymeric carboxylic acids, of ether carboxylic or sulphonic acids of starch or cellulose, or of acid sulphuric acid esters of starch or cellulose, particularly carboxymethyl cellulose.  Sodium sulphate is invariably also present. German Specification 1,018,421 is referred to.
Patent GB-1124779-A (GB)
Title: Method and apparatus for providing a winding for a stator
IPC: H02K15/06
Filed: 1966-10-18
Abstract: 1,124,779. Winding coils for stators. INDUSTRA PRODUCTS Inc. 18 Oct., 1966 [19 May, 1966], No. 46619/66. Heading B3A.. An apparatus for winding coils for a stator comprises a winding head 1 with a flyer 51 and a series of stepped formers 9 mounted on rotatable turret 7, the wire being wound into a group of coils on each former, without severing the wire so that the groups and coils are integrally connected. The position of the flyer relative to the former to be wound is adjustable through a lever linkage (63) by a hydraulic cylinder (107), Fig. 9 (not shown). Initially the flyer is arranged in position to wind the first coil Cl of group G1 and the wire emerging through the flexible tube 61 is secured to the first step of the former. The flyer is rotated relative to the former to wind the coil and may be reciprocated longitudinally of the former by hydraulic means. After the required number of turns a stop-pin (P1) is retracted and the lever linkage (63) moved against a second stop-pin (P2) so that the second coil can be wound. After winding the last coil of the group the flyer is stopped and the turret 7 rotated clockwise through 90 degrees and a seoond former wound with coils. The wire between the coils is not severed. This proceedure is repeated for each former, the wound coils.being removed at D and placed on pins 13 for insertion into a stator core. The formers 9 are collapsible to facilitate removal. When all the coils are positioned correctly on the pins 13- the stator S is placed on the pins and a sleeve 15 is moved towards the stator 'to push the coils through the bore of the stator and into the grooves, Fig. 4 (not shown).
Patent GB-1446408-A (GB)
Title: Shredding machine
IPC: B26D1/14
Filed: 1974-10-29
Abstract: 1446408 Tyre-shredding apparatus COATS CO INC 29 Oct 1974 [25 March 1974] 46781/ 74 Heading B2A A tyre shredding machine comprises a pair of parallel contra-rotatable shafts having cutting and feeding means driven by reversible hydraulic motors 22, 24 supplied by a pump 50 and reversing means and fed by conduits 26, 28 in parallel. Pressure in the conduits is sensed by a switch 68 and when overload takes place in excess of a predetermined time the reversing means viz the pump 50 is reversed for a predetermined time determined by a delay relay 64. Flow in the conduits is limited by a valve 36 such that under no-load conditions the motor 22 runs at e.g. 42 r.p.m. while motor 24 runs at 22 r.p.m. When loaded the shafts rotate at the same speed. The pump 50 is a swashplate type operated by a linkage 60 and solenoid 62 but could be replaced by a four-way valve. During reversing the motors are driven at the same rate due to insertion of a check valve 38 in the line 26. If the pressure switch 68 fails a pressure relief valve 39 protects the system.
Patent GB-1520826-A (GB)
Title: Wiper blade
IPC: B60S1/38
Filed: 1976-11-11
Abstract: 1520826 Windscreen wipers SWFSPEZIALFABRIK FUR AUTOZUBEHOR GUSTAV RAU GmbH 11 Nov 1976 [19 Nov 1975] 46970/76 Heading A4F To prevent detachment of a windscreen wiper rubber from a clawed yoke 4, an end clip 5 is used which consists of two inter-lockable portions 7, 9 connected by a resilient hinge 8, one portion 7 having pins 10 which engage in openings 12 in the wiper blade backing strip(s) 2 when the clip is slid on to the end of the rubber, and the portions 7, 9 when locked together enclosing corner of the rubber. As shown undercut grooves 16, 17 on the portions 7, 9 interfit to lock the portions together with the backing strip(s) 2 and the rubber received in channels 13, 14 in the portion 7. Should the hinge 8 break, detachment of the portions 7, 9 from one another is prevented by a projection 23 of portion 7 which fits in an aperture 24 in portion 9.