baber/WOPTO huggingface dataset:
Patent GB-1086857-A (GB)
Title: Improvements in ties or stirrups for reinforced concreted construction
Inventor: LOCKSHIN LOUIS LEON
IPC: E04C5/06
Filed: 1964-11-13
Abstract: 1,086,857. Reinforcement stirrup. J. M. TANENBAUM. Nov. 24, 1965 [Nov.13, 1964] No. 46419/64. Heading E1W. A tie or stirrup for reinforcing members 15, 16, 17, 18 of a concrete structure comprises steel rods 10, 11, 12, 13 arranged in accordance with the disposition of the reinforcing members, adjacent rods overlapping at their ends where they are welded together. The rods may comprise a low carbon steel.
Patent GB-1243919-A (GB)
Title: Composite electrolyte membranes
Inventor: ADLHART OTTO JAKOB
IPC: H01M8/02
Filed: 1969-09-22
Abstract: 1,243,919. Membrane. ENGELHARD MINERALS & CHEMICALS CORP. 22 Sept., 1969 [23 Sept., 1968]. No. 46676/69. Heading B5N. [Also in Divisions C3 and H1] An electrolyte membrane for a fuel cell may be laminated from two layers: one comprising a matrix of carbon powder and fluorocarbon polymer gel containing an acid liquid electrolyte and the other, thinner than the first and free from carbon, comprising a matrix of a particulate inorganic material and a fluorocarbon polymer gel also containing liquid acid electrolyte. The fluorocarbon may be p.t.f.e. The electrolyte may be aqueous H 2 SO 4  or H 3 PO 4 . The inorganic compound may be an oxide, sulphate, phosphate, boride or carbide of zirconium, tantalum, tungsten, boron, chromium or niobium, e.g. zirconium phosphate prepared in situ from zirconia and H 3 PO 4  electrolyte. The first layer may also include one of the above specified inorganic compounds. The two layers may be made separately by mixing, heating and rolling or pressing the ingredients. They may then be rolled or pressed together.
Patent GB-1449176-A (GB)
Title: Apparatus and method for controlling an ac motor
IPC: G05D13/62
Filed: 1973-08-31
Abstract: 1449176 Automatic control of AC motor KEARNEY & TRECKER CORP 31 Aug 1973 [1 Sept 1972] 47026/75 Divided out of 1449175 Heading G3N The description and drawings are substantially the same as Specification 1449175 but the claims are directed to a D.C./polyphase A.C. inverter the output of which is applied to an A.C. motor and the voltage amplitude of which is controlled in dependence upon a digital signal.
Patent GB-1190277-A (GB)
Title: Improvements in and relating to Electric Storage Cells or Batteries and to the Manufacture thereof
IPC: H01M50/103
Filed: 1967-10-16
Abstract: 1,190,277. Bell or battery casings. OLDHAM & SON Ltd., and H MORTON. 11 Sept., 1968 [16 Oct., 1967], No. 47122/67. Heading H1B. Secondary cells or batteries are made by moulding a casing having a top wall, a bottom wall and sidewalls as a unit, severing one wall from the remainder to provide an access opening, assembling through the access opening the internal battery elements within the casing, and sealing either the removed wall or a preformed replacement wall therefor to the casing to cover the access opening. In the embodiment described the casing unit is made from a plastics material by blow-moulding or rotational moulding and comprises a casing portion 3 and an integral lid 11. In the region of the lid 11 the side walls 4 have a lesser spacing than the major portion of the side walls, the regions of greater and lesser spacing being joined by the sloping, integral band 16. The lid 11 is severed from the casing 3 at the position indicated by line B at the bottom of band 16. A portion of band 16 is then removed at line A to leave flared skirt 14. After the assembly of the battery elements in the casing 3 through the access opening at its upper end the lid 11 is then inserted into the access opening with its flared skirt 14 in the open end of the casing 3 and sealed therein with a bitumen or epoxy resinsealing compound 15 (Fig. 1).
Patent GB-1403505-A (GB)
Title: Device for regulating a reference input to an regulating circuit
IPC: F16H53/06
Filed: 1973-10-10
Abstract: 1403505 Displacement transducers ROBERT BOSCH GmbH 10 Oct 1973 [11 Oct 1972] 47217/73 Heading G1N Apparatus for measuring the height of a car body 10 Fig. 1 above a road surface comprises a linkage 13 between a vehicle axle 17 and the car body, consisting of two rods 14, 16 hinged at 18, the further end of rod 14 being clamped in a receptacle 12 attached to the car body 10, to control a shaft carrying a cam-plate 44 Fig. 2 associated with a spring-loaded follower 56 incorporating a ferrite core 66 slidable in a spool 54, part of which supports coils 58, whereby a change in the height of the car body, produces rotation of the cam-plate 44 and linear displacement of the core 66 to vary the inductance of the coils 38. The measured inductance may be used to adjust the head-lamps.
Patent GB-1400845-A (GB)
Title: Controllers for dc motors
IPC: H02P7/291
Filed: 1972-10-13
Abstract: 1400845 Automatic control of speed ROBERT BOSCH GmbH 13 Oct 1972 [16 Oct 1971] 47230/72 Heading G3R [Also in Division H2] A motor control circuit for a D.C. series motor in a pedestrian controlled battery operated fork lift truck comprises a pulse generator including an operational amplifier operating as a relaxation oscillator for applying pulses having a controllable pulse duty ratio to a transistor switch for connecting the motor to the battery where the desired speed valve voltage is applied to the amplifiers non-inverting input and the back e.m.f. of the motor is applied to the inverting input after smoothing. As shown motor 11 is connected to battery 20 through transistor switch 18 and resistor 19 and its field windings, for reversible operation, are connected through their respective contacts 15, 16 to the other supply lead 24. The desired speed is set by potentiometer 25 which is fed to the non-inverting input of adder 26 and  added to the motor voltage fed to the inverting input through a smoothing circuit including a capacitor (295) and a resistor (296). The resultant signal controls the mark/space ratio of pulses from generator 27 up to a 50% duty ratio when the pulse frequency is decreased and the mark/space ratio further increased. Resistors (292, 293) in the feedback path provide a limiting arrangement for motor speed allowing the top speeds to be condition dependent. Two switching circuits 40, 30 are provided for short-circuiting the error signal and the desired speed signal respectively. The circuit 40 provides motor over-current protection and measures the voltage drop across resistor 19. Switch 31 is operated by a brake switch (52) or collision switch 34 and requires that selector 25 is returned to zero before bi-stable 31 can be reset. In the case of collision switch operation the motor is automatically reversed and made to run at slow speed in the opposite direction. A bi-metal switch (253) is used to shut down the arrangement by switch 32 if the germanium transistors used in switch 18 overheat. A battery voltage monitoring circuit (36) is provided to adjust the operating point of the transistor in switch 32. Switch 32 also operates when the reversing switch is operated. Free-wheeling diodes 22, 21 are provided across the whole motor and across the motor armature respectively, the latter is provided so that reverse current braking can be used. The current supply circuit for the control system comprises a blocking oscillator.
Patent GB-1484219-A (GB)
Title: Mechanism for securing a nut against loosening
IPC: F16C35/063
Filed: 1975-11-17
Abstract: 1484219 Mechanism for locking nut on a threaded spindle HI-SHEAR CORP and G S WING 17 Nov 1975 [15 Nov 1974] 47337/75 Heading F2H A mechanism for locking a nut 90 on a threaded spindle 70 comprises a washer 75 keyed to the spindle and having a slotted peripheral portion 80, a lock ring 89 having lugs 87, which engage with the slots in the peripheral portion of the washer, and serrations 88, which engage with serrations 97 on the nut, and a resilient ring 100, the arrangement being such that when the lock ring is pushed forward to disengage its serrations from those on the nut, the resilient ring is contracted in diameter and when pressure on the lock ring is released, for instance, after tightening of the nut on the spindle, the expansion of the resilient ring back to its normal diameter forces the lock ring back into engagement with the nut. The ring may be in the form of an incomplete circle having ends which in the normal unstrained condition are spaced apart from each other (Fig. 6, not shown). The lock ring may be prevented from slipping off the nut by means of shoulder 93 and swaging 103. The lugs on the lock ring may be provided with tabs 104 which are bent over the washer. Markings may be provided on rear faces of the lock ring and nut to indicate the relative positions of their serrations, and thereby facilitate locking. A socket wrench 105 may be used for applying pressure to the lock ring and turning the nut.
Patent GB-1409682-A (GB)
Title: Production of microporous film or sheet
IPC: D06N3/14
Filed: 1973-10-10
Abstract: 1409682 Microporous polyurethanes MITSUBISHI PAPER MILLS Ltd 10 Oct 1973 [11 Oct 1972] 47382/73 Heading C3R Microporous, vapour permeable film or sheet is prepared from a solution of polymers containing a polyurethane elastomer optionally in admixture with other polymers. To the said solution is mixed with stirring, and optionally heating, a compound (I) containing at least 2 basic N atoms and at least 2 active H atoms attached thereto and a compound (II) having at least 3 NCO groups, or a compound (III) having at least 2 basic N atoms and at least 3 active H atoms attached thereto and a compound (IV) containing at least 2 NCO groups. I and II or III and IV immediately react to yield a dispersion of colloid particles having contained therein the polymers comprising the polyurethane elastomer as essential constituent. The compounds I and II or the compounds III and IV are added in a ratio NH/NCO of at least 1. A substrate, e.g. a woven or non-woven fabric or a temporary support, is then coated with or impregnated with the dispersion and the product subjected to wet coagulation. The polyurethane elastomer may be prepared by reacting a polyester, polyether or polyether-polyester diol with an organic diisocyanate and a diol, diamine or a hydrazine. The solvent may be dimethyl- or diethyl-formamide, dimethylacetamide or dimethyl sulphoxide. The solution may, prior to addition of I and II or III and IV, contain 5-30% by weight of polyurethane elastomer as essential constituent. The optional polymer constituent of the solution may be polyvinyl chloride or acetate, acrylonitrile-butadiene rubber, styrene-butadiene rubber or acrylic polymers. I or III may be N,N<SP>1</SP>.dimethylhydrazine, N,N<SP>1</SP>-dialkyldiamines, N-monoalkyldiamines or aminopolyamides. II and IV may be 1,4-tetramethylene-, 1,6-hexamethylene-, m- or pphenylene- or 2,4- and/or 2,6-tolylene diisocyanate, reaction products of 1 mole of trimethylol-propane and 3 moles of 2,4-tolylene diisocyanate or a compound
Patent GB-1088117-A (GB)
Title: Recording on a moving medium
Inventor: BREWSTER ARTHUR EDWARD
IPC: H01L45/00
Filed: 1965-11-10
Abstract: 1,088,117. Recording and playback. STANDARD TELEPHONES & CABLES Ltd. Nov. 10, 1965, No. 47655/65. Heading G5R. A medium for recording binary electric signals consists of an electrically conducting substrate 10 coated with a film 11 of material, e.g. molybdenum disulphide, which may be selectively and reversibly changed from a state of high to low impedance by an electric current. Recording, erasure and play-back are effected by appropriate currents fed through a point contact electrode 12 movable relative to the record medium. A record disc, drum or tape may be used. In a modification the electrode 12 makes contact with the film 11 through contacts arranged in a further insulating coating over the film 11. Alternatively, the conducting substrate 10 may be aluminium one surface of which is anodized; recording is effected in this case by destruction of the anodized film and erasure is accomplished by re-anodizing.
Patent GB-1249342-A (GB)
Title: Improvements in and relating to g-clamps
Inventor: FUTTER HANS WERNER
IPC: B25B5/10
Filed: 1968-10-08
Abstract: 1,249,342. Clamps. H. W. FUTTER. 7 Jan., 1970 [8 Oct., 1968], No. 47710/68. Heading B4W. [Also in Division E2] A G-clamp comprises one or more screw actuated clamping heads each provided with a removable cap constituting the gripping surface thereof. The clamp consists of a frame 1 with clamping screws 3 and 7 each with a head 8 and a boss 5 aligned with the screw 3 the heads and boss being covered by a detachable cap 10 of plastics or rubber. The screws have tongues or pins 9 with ends turned over for retaining a head 8 of metal or plastics, or the screws are threaded so as to engage a threaded base or internally bored projection on the head. The caps 10 comprise a disc with side walls terminating in an inner lip 12 for engaging the heads 8. The cap for the boss 5 has a pin 14 which may be screw threaded to engage in a bore 6 in the frame and one wall 11 is cut away to accommodate part of the frame. In modifications the operative surface of the caps is concave, or has a conical recess or projection, or has circular ribbing or is non-ribbed transversely.
Patent GB-962633-A (GB)
Title: Magnetic material and methods of making the same
IPC: H01F1/24
Filed: 1960-11-15
Abstract: 962,633. Magnetic compositions. WESTERN ELECTRIC CO. Inc. Nov. 15, 1960 [Dec. 3, 1959], No. 48043/63. Divided out of 962,631. Heading H1H. A method of manufacturing magnetic bodies comprises the steps of compressing and heattreating magnetic particles coated with an insulating composition including a refractory metal silicate, magnesium hydroxide and an alkali metal silicate, wetting the heat-treated bodies with water and then reheating. Essentially the invention lies in wetting and drying bodies formed by a known process which is described in the abridgment for Specification 962,631. The wetting under " prior process" may be achieved by soaking in boiling water for 30-60 minutes. The final heat treatment may be at 1300 F. The combinations of this wetting step with the aluminate treatment forming the subject of Specification 962,631 and with the oil treatment forming the subject of Specification 962,632 are also contemplated. Specification 290,736 also is referred to.
Patent GB-1459608-A (GB)
Title: Powdered detergent compositions
IPC: C11D1/14
Filed: 1974-11-06
Abstract: 1459608 Powdered detergent compositions HOECHST AG 6 Nov 1974 [8 Nov 1973] 48064/74 Heading C5D A detergent composition in powder form comprises at least 30% by weight of a watersoluble salt of a C 10 -C 20  secondary alkane sulphonic acid and 2-40% by weight of a water-soluble salt of a C 10 -C 20  α-olefin sulphonic acid, the percentages being calculated on the total content of surfactants. The composition may contain other anionic surfactants (including soaps), non-ionic and amphoteric surfactants, organic or inorganic builders, antifoaming agents, soil-releasing substances, bleaching agents, optical brightening agents and activators for the bleaching agent. The composition of the example contains sodium salts of a technical mixture of C 10 -C 20  α-olefin sulphonic acids, sodium salts of a mixture of secondary C 13 -C 18  alkane sulphonic acids, condensate of 11 mols of ethylene oxide with C 16 -C 18  aliphatic straight-chained alcohol, tallow oil soap, sodium tripholyphosphate, sodium metasilicate, magnesium silicate, carboxymethyl cellulose, sodium perborate, sodium sulphate and optical brightener.
Patent GB-1274889-A (GB)
Title: Pure 2,3,6-trimethylphenol
IPC: C07C37/86
Filed: 1969-10-01
Abstract: 1,274,889. Trimethylphenol. CONSOLIDATION COAL CO. 1 Oct., 1969 [2 Oct., 1968], No. 48253/69. Heading C2C. 2,3,6-Trimethylphenol is separated from an admixture with at least one close boiling xylenol or trimethylphenol by butylating at below 60‹ C. under butylating conditions, fractionally distilling the product to recover a fraction containing 4-t-butyl-2,3,6-trimethylphenol, debutylating this fraction at between 60‹ and 125‹ C. under debutylating conditions and fractionally distilling the product to recover 2,3,6-trimethylphenol
Patent GB-1047148-A (GB)
Title: Cleaning process
Inventor: THOMAS BLEDDYN JAMES
IPC: G03D15/00
Filed: 1963-12-09
Abstract: <PICT:1047148/C6-C7/1> Reeled web, particularly magnetic tape 1 is fed into a bath 3 of methylchloroform or the so-called "refrigerant 113" (1:1:2-trichloro-1:2:2-trifluoroethane) where it is agitated at 14 (e.g. by an ultrasonic transducer or brush gear), washed by clean solvent at 4A, dried by hot air at 4B and wound on to a takeup reel 5.  Solid foreign matter is removed from the bath 3 by the side circuit 11-13 and a portion of the solvent is distilled at 19 and fed into the side circuit 20-22 to feed the washing jets 8. Solvent removed by the hot air at 4B is condensed at 16 and returned to the clean solvent reserve 18.  Water vapour, which might result in ice formation at 16, is removed at 21.
Patent GB-1514349-A (GB)
Title: Material reducing method and apparatus
IPC: B02C21/00
Filed: 1976-11-22
Abstract: 1514349 Comminuting systems; roller-and-ring mills WILLIAMS PATENT CRUSHER & PULVERIZER CO 22 Nov 1976 [26 July 1976] 48653/76 Heading B2A A comminuting system particularly for coal or clay comprises a system comprising a mill 12: a fluid bed separator 16 a cyclone 18 and a blower 22, and a second system comprising a material classifier 28 cyclone 33 and blower 36 to accept ground material from the first system, the oversize being returned to the mill via a conveyor 40 and the desired fraction being delivered from the second cyclone via a valve 34. Hot oxygen-deficient gas is supplied from a generator 24.
Patent GB-1465986-A (GB)
Title: Catalyst for reducing the toxic contaminants of combustion engine exhaust gas
IPC: B01J37/02
Filed: 1974-11-12
Abstract: 1465986 Exhaust gas purification catalysts HOECHST AG 12 Nov 1974 [24 Nov 1973] 48885/74 Heading BIE [Also in Division Cl] Catalysts comprise a ceramic honeycomb structure coated with a layer of alumina carrying copper, nickel and manganese oxides applied by impregnation after the coating of the carrier. They may be made by heating the honeycomb to 300-400C, introducing it while hot into a concentrated solution of an aluminium salt of a volatile acid for 15-60 min, blowing out excess solution, drying the carrier at room temperature, heating the dry carrier for 1-4 hr. at 350-450C, calcining at 500-700C for 2-6 hr., heating to 300-400C, dipping while hot into a hot concentrated solution of copper, nickel and manganese salts of volatile acids for 15-60 min, blowing out the excess solution, drying for 1-4 hr at 350-450C and calcining at 700-1000C for 5-20 hrs. The catalyst may be reduced by heating in an atmosphere containing a minor proportion of a gaseous reducing agent.
Patent GB-1126449-A (GB)
Title: Improvements relating to motor vehicles with protective means against contamination of the interior thereof
IPC: B60H3/00
Filed: 1966-11-02
Abstract: 1,126,449. Vehicle cabs. DAIMLERBENZ A.G. 2 Nov., 1966 [4 Nov., 1965], No. 49157/66. Heading B7B. A vehicle cab is provided with a compressed air plant with a pressure regulating device to maintain the atmosphere in the cab at a pressure above atmospheric to prevent contamination from outside. A pressure relief valve is incorporated in the cab wall and a gauge monitors the internal pressure.
Patent GB-1525270-A (GB)
Title: Apparatus and process for cooling power cables
IPC: H01B7/29
Filed: 1975-12-02
Abstract: 1525270 Cooling cables HYDRO-QUEBEC 2 Dec 1975 49443/75 Heading H2C Underground power cables 10 are enclosed in a chamber 12 which has a liquid, preferably water, distributed therealong; air is caused to flow along the chamber to assist evaporation of the liquid and carry the evaporated liquid from the chamber via an outlet thereby cooling the cables. Each cable has a layer 24 of jute or fibreglass which contacts water 26 in the bottom of the chamber. The vapour is removed by being blown by a pump to the atmosphere; alternatively a vacuum pump may be used to reduce the pressure in the enclosure, the vapour being exhausted to atmosphere through the pump. Arrangements for pumping liquid to the enclosure and removing liquid from the enclosure are described.
Patent GB-497308-A (GB)
Abstract: 497,308. Cash registers. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 14, 1937, No. 6398/38. Convention date, June 26, 1936. Divided out of 497,154. Drawings to Specification. [Class 100 (iv)1 [Also in Group XIX] Locking-devices.-In a cash register in which printing is effected from a series of geared typewheels, the platen is carried by a frame, movement of which to give access to the type-wheels causes a bar to engage and lock the latter. The mechanism is identical with that described in Specification 497,154.
Patent GB-1013019-A (GB)
Title: Improvements in or relating to electron-optical image intensifiers
IPC: B23Q1/52
Filed: 1963-12-17
Abstract: 1,013,019. Image converter tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 17, 1963 [Dec. 20, 1962], No. 49767/63. Heading HID. In an electron-optical image intensifier comprising a concave photo-cathode 18, a thimbleshaped anode 8, apertured at 10 for passage of electrons to a fluorescent screen 15, and a conductive surface 4 surrounding the space between cathode and anode, an apertured electrode 29 is provided adjacent the anode and occupying the place of an equipotential surface determined by potential distribution between anode and cathode, and is connected either to a potential corresponding to that of said equipotential surface, or to the anode voltage by a switch 33, to vary the size of the image formed on the fluorescent screen. Instead of employing a separate conductive surface 4, as shown, the cylindrical envelope part 1 may be of metal. Also, for X-ray investigation, the tube end-wall 2 may be of aluminium. The fluorescent screen may be formed on tube window 14 instead of on a mica or glass support carried by anode 8.
Patent GB-1280019-A (GB)
Title: Process for the preparation of cuprous cyanide
Inventor: HESS WAYNE THOMAS
IPC: C01C3/08
Filed: 1969-10-10
Abstract: 1280019 Cuprous cyanide E I DU PONT DE NEMOURS & CO 10 Oct 1969 [10 Oct 1968 7 July 1969] 49984/69 Heading C1A Cuprous cyanide is produced by dissolving copper in hydrochloric acid and cupric chloride, then reacting the cuprous chloride solution produced with liquid hydrogen cyanide to give cuprous cyanide which is separated off. Part of the cuprous chloride may be oxidized to cupric chloride, and recycled to the first step. Hydrochloric acid produced in the reaction between cuprous chloride and hydrogen cyanide may also be recycled. The hydrochloric acid used may contain an alkali metal chloride or an alkaline earth metal chloride, to increase the solubility of cuprous chloride.
Patent GB-1031970-A (GB)
Title: Process for producing methylene-bridged polyphenyl polyamines
IPC: C08G12/08
Filed: 1964-12-09
Abstract: In a continuous process for producing methylene-bridged poly(phenylamines), aniline and aqueous formaldehyde in a molar ratio of 4: 1-2.5 are mixed at elevated temperature in a first zone and the mixture passed to a second zone at 70-100 DEG  C. where HCl is admixed to provide an HCl: aniline molar ratio of at least 1: 4.  The product is stated to contain diamines, triamines and higher polymers.