baber/WOPTO huggingface dataset:
Patent GB-1389160-A (GB)
Title: Voltage regulator
IPC: H02M3/135
Filed: 1973-08-24
Abstract: 1389160 Control of D.C. motors L V VASILIEV and E G BUYANOV 24 Aug 1973 40293/73 Heading H2J [Also in Division H3] A load 5 such as a D.C. motor is supplied with a pulse-width modulated voltage by the circuit shown, a typical operating cycle being as follows: (1) Application of a D.C. supply voltage U charges capacitors 9, 14 through a diode 7 and choke 8 until a firing pulse is applied to a damping thyristor 10, whereupon the capacitor 14 discharges through the load 5 and capacitor 9 is further charged through members 7, 8, 10 and 5 to a voltage exceeding the supply voltage U (up to 2U), completion of charging rendering the thyristor 10 non-conductive. (2) Thyristors 6, 11 are fired simultaneously to pass current through the load 5 and cause the capacitor 9 to recharge to a reverse voltage through chokes 8, 12, the capacitor 14 also being charged through members 7, 11 and 12 to a voltage exceeding the supply voltage U. These recharge and charge operations render the thyristor 11 non-conductive. (3) Thyristor 10 is fired to apply the voltage  of capacitors 9, 14 to the thyristor 6 which is thus made non-conductive, whereupon capacitors 9, 14 are respectively charged and discharged as described in (1) above and the circuit is reset ready for further firing of thyristors 6, 11. The described voltage regulator ensures that the capacitors 9, 14 retain their charge during drops in the supply voltage U; that failure to turn off thyristor 6 is followed by charging of capacitors 9, 14 when thyristor 11 is subsequently fired, whereby turn-off of thyristor 6 is again possible; and that the load can be permanently supplied through thyristor 6 by removing the firing pulse supply to thyristors 10, 11 at any moment during regulating operation, after which the latter can be automatically restarted by restoring the firing pulse supply.
Patent GB-1128120-A (GB)
Title: Dihalocinnamic acid amides and their use as fungicides
IPC: A01N37/18
Filed: 1967-09-05
Abstract: 1,128,120. Dihalocinnamic acid amides. UPJOHN CO. 5 Sept., 1967 [27 Sept., 1966], No. 40474/67. Heading C2C. [Also in Division A5] The invention comprises cinnamic acid amides of the formula in which X and X<SP>1</SP> denote halogen atoms and R denotes a hydrogen atom or a methyl group. The amides may be prepared (1) by reacting 3,4-dihalocinnamoyl halides with ammonia or methylamine or (2) by reacting esters of 3,4- dihalocinnamic acids with ammonia or methylamine. Amides in which R denotes a hydrogen atom are also obtainable by heating ammonium salts of 3,4-dihalocinnamic acids to effect internal dehydration. Examples are given, the compounds described including the amides and N-methylamides of 3,4-dichloro-, 3,4-dibromo-, 3,4-diiodo-, 3,4-difluoro-, 3-chloro-4-bromo- and 3 - chloro - 4 - iodo - cinnamic acids. The products are useful as fungicides (see Division A5). 3,4-Dihalocinnamoyl halides are obtainable from 3,4-dihalocinnamic acids and a thionyl halide.
Patent GB-933313-A (GB)
Title: Ply turning device for use in the manufacture of pneumatic tyres
Inventor: TREVASKIS HENRY WILLIAM
IPC: B29D30/34
Filed: 1958-12-16
Abstract: 933,313. Tyre building machines. DUNLOP RUBBER CO. Ltd. Nov. 30, 1959 [Nov. 16, 1958], No. 40476/58. Class 144 (1). To effect turn-down or turn-up of the ply ends 11 on the shoulder of a tyre building drum 10, a series of spring fingers 4 are connected sideby-side to form a cylinder each with one end rigidly secured to a cylindrical mounting 1 arranged coaxially with the former, whereby the free ends of the fingers may be flexed radially inwardly or outwardly, as by an inflatable tubular annulus 9 carried by the mounting 1 respectively either surrounding, or, as shown, within, the free ends of the finger 4, to contact the ply ends and effect the turning operation. As shown, the fingers 4 are of spring steel arranged in two layers with the fingers in each layer circumferentially spaced and disposed to bridge the gaps between the fingers of the other layer. The two layers of fingers encased within a flat tubular annular bag 5 of rubber which is open at one end 6 where it is riveted to the fingers 4. The finger and bag assembly is located on the mounting 1 by a stop ring 7 and the inflatable annulus 9 is disposed in a peripheral recess 8 in the mounting to permit the unflexed fingers 4 to extend cylindrically. The mounting 1 is slidably arranged on the drum shaft (not shown) and is axially reciprocable therealong, as by a collapsible vacuum-operated bellows. In use, the annulus 9 is inflated to flex the fingers 4 to the desired radius, and the mounting 1 is moved so that the finger ends press the ply ends against the drum shoulder, or the bead core 12 and filler 13. The mounting 1 is then withdrawn, the annulus is expanded slightly and the process repeated until the ply turning has been completed. Specification 933,311 is referred to.
Patent GB-870845-A (GB)
Title: Improvements relating to electric sockets
Inventor: GOODIER GEOFFREY THOMAS
IPC: H01R13/453
Filed: 1958-12-16
Abstract: 870,845. Two-part couplings. NETTLE ACCESSORIES Ltd. Nov. 24, 1959 [Dec. 16, 1958], No. 40566/58. Class 38 (1). In a socket outlet having a cover 10, a rotary shutter 7 that normally screens contacts 2, 3 is disposed in a recess in the cover into which it is urged by a spring 6 which also serves to turn the shutter into the closed position, the shutter being mounted on a pivot pin 5 with a tapered top about which it can tilt and having two oppositely chamfered blades extending over the socket holes 11. When plug pins are inserted simultaneously into both holes 11 the shutter is displaced from the recess and rotates to uncover the holes; if only one plug pin is inserted the shutter tilts about the pivot pin leaving one blade in the recess, and rotation is prevented.
Patent GB-965007-A (GB)
Title: Electric motors
IPC: H02P23/00
Filed: 1961-11-14
Abstract: 965,007. Induction motors; bore constructions; control of A.C. motors. GENERAL MOTORS CORPORATION. Nov. 14, 1961 [Nov. 21, 1960], No. 40689/61. Headings H2A and H2J. An A.C. electric motor is connected to a D.C. source through a transistor oscillator circuit whose output and feedback windings act as the field coils of the motor. The two halves 18, 20 of the centre-tapped field coil are connected at the free ends to the collector terminals of transistors 26, 28 and the centre tap to battery 30 via a switch 32. The free ends of feed-back coils 36, 38 are connected via ballast resistors 33, 34 to the respective base electrodes, the emitters being connected together and to the other battery terminal. If switch 32 is closed the voltage developed across resistor 35 will cause transistor 26 to conduct and current flowing in field 18 will induce a voltage in feed-back winding 36, 38 of the polarities shown until the magnetic circuit is saturated when this voltage will reduce to zero. When the field collapses due to the conduction of transistor 26 being reduced the feed-back voltage will reverse and cause transistor 26 to cut off and transistor 28 to conduct. Thus the direction of flow of the current in the field winding alternates and by use of starting rings 22 or other starting expedient (split phase, capacitor) squirrel cage rotor 16 will run up to speed as in a normal A.C. single phase motor. A plurality of correctly synchronized oscillator circuits may be used to supply the field of a polyphase motor. The polarities shown are for PNP type power transistors but NPN type can be used by changing the polarities correctly. An alternative motor, Fig. 2, is described as having two laminated E-shaped cores 58, 60, having low reluctance lap joints on the outer legs 62, 66; 64, 68 and centre legs terminating in pole faces 74, 76. Bridges 71, 73 of thin cross-section, i.e. easily saturated, between poles 70, 72 are used to avoid an abrupt change in flux density at the pole tips. Windings 80, 82 each comprising a field coil and feed-back coil are wound on poles 70, 72 and sliding coils 84, 86 are provided on each pole. The laminations are clamped between end-plates 48, 50 which also contain the rotor bearings. When used as a submersible fuel pump (Fig. 4, not shown), the motor is supported from the top of the tank on a bracket which also mounts the transistors and is therefore enclosed in a tube and the rotor drives a pump impeller.
Patent GB-1471975-A (GB)
Title: Fan hub and shaft assembly
IPC: F04D29/28
Filed: 1974-09-18
Abstract: 1471975 Mounting rotors on shafts WESTINGHOUSE ELECTRIC CORP 18 Sept 1974 [27 Sept 1973] 40733/74 Heading F2U A fan disc assembly is secured to a shaft 1 by means of a hub member 5 which is a shrink-fit on a ring 4a, 4b fitted in a circumferential groove 3 of the shaft, the fan disc 9 being secured between the hub member 5 and a further hub member 6. The ring 4a, 4b is in at least two parts. The hub members 5 and 6 and disc 9 are interconnected by rivets 11. An annular boss 7 is welded on the inner periphery of disc 9 and is accommodated in annular recesses 5a, 6a of the hub members to accommodate radial loads. Bolts 8 provide an additional connection between the ring 4a, 4b and a flange of hub 5. Hub 5 is heated, passed over the ring and allowed to cool to provide the shrink-fit.
Patent GB-1088093-A (GB)
Title: Improvements in textile drafting apparatus provided with pneumatic clearing means
IPC: D01H5/62
Filed: 1964-10-06
Abstract: 1,088,093. Drafting. DEERING MILLIKEN RESEARCH CORPORATION. Oct. 6, 1964 [Feb. 6, 1964], No. 40739/64. Heading DID. In textile drafting apparatus, particularly in apparatus working dyed worsted fibre, one roll 22 of a pair of rolls 22, 24 is in frictional contact with a suction duct 38 to be cleared thereby. A notch 54 is cut at the forward part of duct 38 to collect fly, laps and the like while the rear edge 46 acts as a scraper. The duct 38 slides in a further duct 40 to accommodate movement of the roller 22. Duct 40 is connected to a duct 44 which runs longitudinally of the spindles and may be connected to an independent source of low pressure or as shown it may be connected to a duct 34 running beneath the bottom roller 24. Orifices 36 in duct 34 clear the bottom rollers and catch broken ends; alternatively suction ducts similar to ducts 38 are provided for the bottom rolls also. Ducts 38 and 40 are of a wear-resistant, plastics material such as Delrin (Registered Trade Mark).
Patent GB-1338922-A (GB)
Title: Apparatus for discharging coke from coke ovens
IPC: C10B33/00
Filed: 1971-09-06
Abstract: 1338922 Discharging coke ovens CAKL STILL 6 Sept 1971 [18 Sept 1970] 41381/71 Heading F4B Apparatus for discharging coke from a battery of coke ovens 1 comprises a coke car 15 movable on rails 14 along the battery of ovens and a coke guide 9 mounted on a wagon 8 which wagon is movable on rails 7 so as to be positionable between the coke car and an oven. The coke car 15 carries a coke tub 19, both the coke tub 19 and coke guide 9 being so mounted that they may be moved in a direction transverse of the rails 7, 14, so that the outer end of the guide 9 may engage an oven mouth 3 and an extension 23 of the tub 19 may engage the inner end of the guide. Steam energized vacuum extractors (28, 29), Fig. 2 (not shown), remove dust and fumes from the tub 19 and a further extractor (40), connected via conduits 44, (46), Fig. 4 (not shown), to apertures (47) adjacent the oven mouth 3 reduces the emission of dust and fumes from the joint between the guide 9 and the door frame (4). The extractors may be provided with cyclones 34, 35, 41. The joint between the guide 9 and oven 1 may be sealed by plates (13) carried , X on the guide which engage vertical anchor parts which lie between the ovens. Door opening means may be provided on the guide wagon 8, as may be means for cleaning the oven door and mouth.
Patent GB-1456923-A (GB)
Title: Process for the production of l-lysine
IPC: C12N1/20
Filed: 1974-09-25
Abstract: 1456923 Lysine INST MIKROBIOLOGII IM AVGUSTA KIRKHENSHTEINA AKAD NAUK LATVIISKOI SSR and INST BIOKHIMII IM A N BAKHA AKAD NAUK SSSR 25 Sept 1974 [11 Oct 1973] 41629/74 Heading C2C L-Lysine is made by a fermentation process using Brevibacterium 22-LD strain.
Patent GB-1098317-A (GB)
Title: Improvements in the treatment of cellulosic textile materials
Inventor: HUNT RICHARD EDWIN
IPC: D06M15/423
Filed: 1963-10-23
Abstract: Cellulosic textile fabrics, e.g. cotton, linen and viscose rayon fabrics, are crease-proofed by impregnating them with an intermediate condensation product of a cross-linking resin which is an amido-formaldehyde condensation product which reacts chemically with cellulose to form cross-links, or the components thereof, together with sufficient of a suitable acidic catalyst to cure the cross-linking resin, drying the fabrics by heating in an atmosphere the temperature of which is not greater than 150 DEG C and then further heating the fabrics so that their temperature is between 100 DEG C and 160 DEG C for a maximum time of 12.5 seconds at 160 DEG C and which maximum is increased by a factor of two for every ten degrees reduction in temperature.  The cross-linking resin may be dimethylol cyclicpropylene urea, dimethylol cyclic-ethylene urea, dimethylol glycol urein or dimethylol hydroxyethyl triazone and the catalyst may be zinc sulphate, chloride or nitrate.  After impregnation the fabric may be dried in a stenter at 100 DEG -150 DEG C until it has a moisture content of 2-5% by weight and the resin then cured by heating the fabric by contact with heated cylinders, by radiant heat, by hot air heating using fans which blow hot air onto the fabric at high velocity or by hot air containing steam.  The fabrics may also be treated with non-nitrogenous cross-linking agents, e.g. dichloropropahol or the disodium salt of tris-b -sulphatoethyl sulphonium inner salt.  The process may be used to improve the permanence of mechanical effects, e.g. pleating and glazed effects, and stiff effects resulting from the use of starch, modified starch products and/or polyvinyl alcohol.
Patent GB-1027358-A (GB)
Title: Improved arrangements for handling sheet material, particularly for loading, unloading and transit in ships' holds
Inventor: BENTLEY FREDERICK NOEL
IPC: B66C1/18
Filed: 1963-10-23
Abstract: 1,027,358. Slings. MASONITE Ltd. July 13, 1964 [Oct. 23, 1963], No. 41864/63. Heading B8H. Stacks of sheet material 8 are lifted by slings 6 of flat strip material, e.g. nylon, supported by a yoke 1 with hooks 4 which are inclined in a horizontal plane to the axis of the yoke. This imparts a torque to the slings which improves their grip on the stack. Small hooks 7 are for use with conventional rope slings.
Patent GB-1416505-A (GB)
Title: Signal transmission system
IPC: H04B3/04
Filed: 1973-09-06
Abstract: 1416505 Transmission lines; parametric amplifiers KABEL - UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 6 Sept 1973 42006/73 Headings H4R and H3X A signal transmission system providing distributed parametric signal amplification without repeaters includes a cable having a magnetic core 1 with a permeability exhibiting a step and carrying respective conductors 2, 3 for a signal frequency f 1  and a control signal whose phase and pump frequency f2 is related to the signal frequency to cause the core permeability to be reduced at signal maxima and restored at zero signal points. As described, f 2  is twice f 1  and is superimposed on a D.C. current biasing the core to the knee of the B-H curve so that variation of the signal between its maxima switches the permeability between its two values. Both frequencies have the same propagation speeds through their respective conductors.  The system is applicable to 100 MHz lines (e.g. in community antenna installations) and radiating coaxial HF lines in which the outer conductor has a continuous longitudinal slit (e.g. for transmission to railway vehicles).
Patent GB-1093903-A (GB)
Title: Process for preparing finely porous shaped carbon bodies
IPC: C04B35/532
Filed: 1965-10-04
Abstract: Finely porous shaped carbon bodies are made by mixing finely ground coke and pitch and a dispersion of colloidal graphite in water, shaping the mixture with a press, drying the pressed body and subsequently baking the body.  The particle size of the coke and pitch may be <150m , and the amount of coke and pitch present may be in a weight ratio between 4 to 0.25 to 1.  The pitch may have a softening point of at least 100 DEG  C., e.g. 120-160 DEG  C.  The mixture may contain 2 to 10% weight based on the dry weight of the mixture of colloidal graphite.  The graphite dispersion may contain a low molecular weight aliphatic alcohol or acetone.  The quantity of liquid introduced with the graphite dispersion may be 10 to 30 ml. per 100 gms. of mixture.  The shaping may be effected with pressures of 20 to 300 kg/cm.2. The bodies may be dried at 60 DEG  to 110 DEG C. and the drying may be at atmosphere then reduced pressure.  The body may be placed in a mould for a second time and subject to pressure, e.g. 200-1500 kg./cm2 at a temperature below, e.g. 30-50 DEG  C. below, the softening point of the pitch. The baking may be in an annular kiln, e.g. at a temperature increase of 1 DEG  to 3 DEG C. per hr., with a final temperature of 1000 DEG  C. and with a baking period of 2 to 4 weeks.  The baked body may be impregnated with a cokable material, e.g. a pitch or synthetic resin, to form a dense carbon body.  The body may be subjected to several of these impregnations.  The carbon bodies produced have a weight per unit volume of 1.20, this may rise up to 1.7 after impregnation, a uniform size of pores with a narrow pore distribution maximum between 1 and 10m  and a total pore volume of 30-65%.
Patent GB-945075-A (GB)
Title: Improvements relating to automatic vehicle guidance systems
Inventor: LAWSON ROBERT
IPC: G05D1/02
Filed: 1961-11-24
Abstract: 945,075. Inductive control of vehicles. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 16, 1962 [Nov. 24, 1961], No. 42144/61. Heading H4U. Control of a plough or other implement drawn by a vehicle is effected by two detectors, spaced apart on the vehicle in the direction of travel, when the detectors are in the vicinity of, and on opposite sides of, a transverse current carrying conductor. As described, six overlapping cable loops A-F, four of which are shown in Fig. 1, are buried below ploughing level in a field and supplied with H.F. alternating current through a selector switch SS. Initially only loop A is energized and a tractor T pulling a plough P carried on its left hand side a pick-up coil SH which so controls the steering SD that the tractor moves parallel to, but displaced to the right of, the right hand side of loop A. When, near point P, coils PH1, PH2 on the tractor are on either side of a transverse cable C2 energized at a different frequency, their outputs are effective through a diode phase detector, Fig. 3 (not shown), to operate means PA which lower the appropriate plough shares. In a similar manner, towards the end of the straight run near point T, the effect of a transverse cable C1 causes the shares to be raised and also changeover of the steering pickup coil to a right hand position 5 by moving coil SH or selecting another at the new position. The tractor then moves to the other side of cable as shown at X and returns parallel to but displaced to the other side of loop A, lowering and raising the plough shares when crossing cables C1, C2 as before. Changeover to pick-up coil position 2 then takes place and a further circuit is made. In all, changes of the steering pick-up coil between positions 1-5 result in five circuits of the field which overlap each other progressively towards the left. When, at the end of these five circuits, cables C1, C2 have been met 20 times a counter CO operates a H.F. A.C. transmitter TR on the tractor so that a fixed receiver R operates switch SS to transfer energization from loop A to loop B. Five more overlapping circuits are then made in the vicinity of loop B. Loops C-F are eventually energized in turn to produce further groups of five circuits to cover the whole field. Specification 932,266 is referred to.
Patent GB-949929-A (GB)
Title: Improvements in or relating to gear trains and an application thereof
Inventor: WATTS JACK
IPC: B41J11/28
Filed: 1959-12-11
Abstract: 949,929. Typewriters. ALACRA Ltd. March 10, 1961 [Dec. 11, 1959], No. 42160/59. Heading B6F. [Also in Division F2] In a web-feeding mechanism for a manifolding machine, a shaft 102, carrying pinwheels 100, is driven from a platen shaft 101 through gears 104, 105, 106, the intermediate gear 105 being rotatable on a cross-shaft 108 which is supported in guide slots 109 in side plates 110, 111 and by swinging links 112 interconnecting the shafts 102 and 108. Adjustment of the shaft 102 is effected by screws 116 acting on bearing blocks 117 which are slidable in guideways 118 in the machine side plates, the screws 116 being rotatable by bevel gears 119 from a common transverse manuallyrotatable spindle 120. A thumb-screw 114 is provided for locking the cross-shaft 108 in position. Specifications 885,688 and 941,881 are referred to.
Patent GB-1362713-A (GB)
Title: Process for the printing and paddyeing of textile materials
IPC: D06P5/20
Filed: 1971-09-10
Abstract: 1362713 Dyeing and printing FARBWERKE HOECHST AG 10 Sept 1971 [11 Sept 1970] 42374/71 Addition to 1321314 Heading D1B Textile material comprising synthetic fibres, natural or regenerated cellulose fibres, or mixtures thereof, are printed or pad-dyed by applying one or more aqueous or solvent containing dyestuff preparations the material then being optionally intermediately dried followed by treating for 5 to 150 seconds in the vapours of one or more organic solvents under saturated vapour conditions at a temperature of from 120 to 240‹C to fix the dyestuffs and optionally to thermoset any synthetic fibres, and wherein prior to the treatment with solvent vapours the textile material is preheated to a determined temperature which controls the formation of a desired amount of solvent condensate on the material during the fixation operation. The solvents of boiling point 120 to 240‹C are preferably hydrocarbons, halogenated hydrocarbons, terpenic hydrocarbons, alcohols, glycols, glycol-ethers, polyglycols, polyglycol-ethers or esters, or a mixture thereof. Infra-red heaters may be used for the preheating the preheating casing being filled with an inert gas, continuous processes may also be employed. Polyester, cellulose acetate and polyamides are dyed with disperse and acid dyes.