baber/WOPTO huggingface dataset:
Patent GB-1375993-A (GB)
Title: Capacitive store
IPC: G11C11/403
Filed: 1971-11-24
Abstract: 1375993 Capacitive stores PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 24 Nov 1971 [27 Nov 1970] 54587/71 Heading G4C [Also in Division H1] The storage elements at the cross-points of an integrated circuit capacitive matrix store are formed by the collector-base capacitance of respective transistors. There is no connection to the base electrodes, as shown in Figure 1. The collectors are connected to Y drive wires and the emitters to X drive wires. In the embodiment described, to store a 0-bit at a particular crosspoint the corresponding Y wire is raised to + 2v and the X wire to - 2v. This charges the collector-base capacitance to about 3À4v. To store a 1-bit the drive voltages are reversed. This causes the Zener diode formed by the baseemitter junction to break down, and the collector-base capacitance discharges via the diode to attain a voltage of about 1À5v. The bit stored at the cross-point. is read out by charging the capacitance to 3À4v. (i.e. to 0-bit state). If the charging current is zero or small the bit stored was a 0-bit, whereas if it is large the bit was a 1- bit.  Because leakage reduces the charge on the collector-base junctions the charge must be periodically restored. This may be done bitwise or word-wise. Word-wise restoration is described with reference to Fig. 4 (not shown). A column of cross-points is selected, and read out by applying - 6v. to the X wire and -0À8v. to the Y wire. The capacitors in the column are thus charged to 4À6v. via the base-emitter junctions. The X wire is then raised to 2À5v., and those Y wires at which a 0-bit was detected are raised to 1À9v., the rest remaining at -0À8v. The capacitors on which a 1-bit was stored are thus discharged to 2À2v., the 0-bit capacitors remaining at 4À6v.
Patent GB-1442783-A (GB)
Title: Screw-threaded fastening members
IPC: F16B37/06
Filed: 1973-11-26
Abstract: 1442783 Anchor nuts K LEITNER 26 Nov 1973 [1 Dec 1972] 54721/73 Heading F2H A screw-threaded fastening member, e.g. a nut, to be mounted by press-fitting in a bore in a structural part, comprises a substantially cylindrical or prismatic body 1 having radially extending projections 2 spaced axially from one end at which are conical sectors 3 which alternate with the projections 2 circumferentially without overlapping. When the crown 5 formed by the sectors 3 is pressed into the bore and the nut turned the sectors become anchored in the wall of the bore. In a modified embodiment the conical sectors 3 have undersurfaces 11 (Fig. 6, not shown) helically inclined with the opposite-hand to that of the screw-thread of the nut.
Patent GB-1361897-A (GB)
Title: Electric power supply system
IPC: B60R21/01
Filed: 1972-11-28
Abstract: 1361897 D.C. power supply systems NISSAN MOTOR CO Ltd 28 Nov 1972 [19 Feb 1972] 54809/72 Heading H2H A circuit for supplying D.C. power to a load R 2  such as an actuator of a motor vehicle safety device comprises a D.C. source Ba, diodes D1, D2, a resistor R and a capacitor C, the capacitor being charged through the resistor to a voltage approximately equal to the source voltage and discharging through the diode D2 to supply current to the load. The capacitor acts as an emergency source to supply current to the load in the event of the source Ba being disconnected from the circuit as a result of a collision.
Patent GB-1405276-A (GB)
Title: Presser foot assemblies for sewing machines
IPC: D05B29/00
Filed: 1972-11-28
Abstract: 1405276 Presser foot UNION SPECIAL MACHINE CO 28 Nov 1972 [29 Nov 1971] 54858/72 Heading D1G  A presser foot comprises first and second sole plates 55, 56 pivoted on a pivotable support arm 32, the second plate 56 being movable in a direction perpendicular to the sole plate. The arm 32 is pivoted at 28 to a housing 22 secured to presser bar 16, one end of the arm being pivoted at 37 to an adjustable member 36 biassed by a spring 42 to urge the sole plates the work or on to an adjustable stop (45, Fig. 5 not shown). Nuts 43, 44 on member 36 limit movement of 32 in the opposite direction. The other end of arm 32 receives a pivot pin 54 extending through a hole 60 in a lug 58 on plate 55 and through an open notch 66 in a lug 65 on plate 56, the plates being free to pivot and plate 56 being free to move vertically upwards against the action of springs 68. The downward movement of plate 56 is limited by the abutment of posts 70 and 62. A spring 71 abuts the rear of the plates to maintain them horizontal.
Patent GB-1066010-A (GB)
Title: Coupled reactors
IPC: G21C7/00
Filed: 1965-12-30
Abstract: 1,066,010. Controlling reactors. ATOMIC ENERGY OF CANADA Ltd. Dec. 30, 1965 [Feb. 24, 1964], No. 55237/65. Heading G6C. In a nuclear reactor, several separate cores are provided, one of which may be shut down for maintenance purposes. Xenon-135 poison, produced by fission-product tellurium-135 in decaying to iodine-135 which in turn decays to xenon-135, is converted to xenon-136 by neutrons absorbed, from an active core, into the shut-down core. Normally, the xenon-135 poison content in a core continues to rise after shut-down, and rapid restarting is prevented. The present system restricts the growth of the poisoning after shut-down and starting is facilitated. The several cores are mounted close together and enclosed in a single neutron reflector. No shielding exists between the cores so as to permit a free neutron exchange transfer between the cores.
Patent GB-1089130-A (GB)
Title: Improvements in or relating to molding apparatus and method
IPC: B29C44/34
Filed: 1965-12-31
Abstract: 1,089,130. Moulding plastics material. KAY MANUFACTURING CORPORATION. Dec. 31, 1965 [Feb. 16, 1965], No. 55472/65. Heading B5A. An article, e.g. a cushion, of polyurethane foam is produced in a mould cavity 12 provided between separable parts 10, 11 of polyurethane foam located within housings 16, 19. Removable liners 14, 21, e.g. of polyethylene, are located adjacent the cavity walls and extend from the adjacent surfaces of the mould parts. The liners are impervious to the generated foam, but the liner 24 is perforated at 22 for the escape of gases which pass through the mould wall to an outlet 20 to which suction may be applied. Suction may also be applied to the passage 18 to hold the liner 14 in place. If the perforations in the liner 24 are relatively large, a sheet 23 of tissue paper or the like is located between the liner and mould wall to absorb any liquid foam and to allow the flow of gas. Instead of two liners, a single bag-like liner may be provided. A netting 26 may be positioned between the mould parts to act as a support for the article when transferring it from the mould to a curing oven. In a modification the perforations are relatively large to allow the passage of a small quantity of foam which acts as an adhesive to secure a cushion cover to the liner. The cover is located around the liner in the mould and may be of bag form. The gases from the mould may be led to a gas scrubber (51), Fig. 9 (not shown), where they may be diluted with air supplied thereto at (52) or washed by liquid, the resultant material being finally discharged from an outlet (53).
Patent GB-1130801-A (GB)
Title: Production of fiber-reinforced synthetic resins
IPC: B29C48/03
Filed: 1966-12-13
Abstract: 1,130,801. Fibre-reinforced synthetic resins. FIBERFIL Inc. 13 Dec., 1966 [15 Dec., 1965], No. 55710/66. Heading C3P. A fibre-reinforced synthetic thermoplastic resin is produced by working together into a mix the reinforcing fibres and a liquid comprising a liquid precursor of the resin which is the monomer in the unpolymerized and/or partially polymerized state and has a viscosity of not more than 200,000 cp. at the temperature at which working is commenced, forcing the mix to flow under pressure along a predetermined flow path while continuing its working at least until the fibres have become uniformly dispersed throughout the mix, controlling the temperature of the mix along the flow path to effect polymerization of the liquid resin precursor and extruding the mix through a restricted opening with the resin polymerized to such an extent that the extrudate is solid at the temperature prevailing outside the extruder. In an example a mixture of polystyrene and glass fibres together with a mixture of styrene monomer and polymer, tert. butyl peracetate and ditert. butyl peroxide were treated as above in an extruding apparatus which is illustrated by 4 Figs. (not shown).
Patent GB-1417971-A (GB)
Title: Gas liquefier or gas refrigerator
IPC: G01N25/14
Filed: 1971-12-01
Abstract: 1417971 Liquefying gases BOC INTERNATIONAL Ltd 27 Nov 1972 [1 Dec 1971] 55810/71 Heading F4P [Also in Division G1] A detector for indicating the presence of impurities in a gas stream comprises a conduit 18, 20 in communication with the stream for receiving a small proportion of the latter, a cold source 8 in thermal contact with a part of the conduit so as to be able to maintain that part at a temperature at which the impurities, but not the gas stream, freeze, and an indicator 42 for indicating the flow-rate through the conduit, a portion of the conduit being shaped to trap any frozen impurities and thereby to restrict the rate of fluid flow through the conduit. The indicator 42 which provides a reading indicative of the impurity level in the gas stream may comprise a flow meter or pressure gauge 2 and be connected to an alarm 44. As shown, the detector may be arranged down-stream of a compressor 2 through which gas, e.g. helium is directed via a conduit 3 passing through progressively cooling heat exchangers 4, 6, 8 to a Joule- Thomson valve 10, liquefied gas being collected from the valve 10 in a container 12 while remaining gas is returned to the compressor 2. The conduits 18, 20 pass through a heat exchanger 22. Part of the gas from the exchanger 4 is returned via an expansion engine 14, to the compressor through exchangers 4, 6 to provide additional refrigeration. That part of the detector in which the frozen impurities, e.g. oxygen and nitrogen are accumulated is defined by a narrow bore pipe 40 in heat exchange relation with a copper end piece (26) (Fig. 2, not shown) which extends into the heat exchanger 8, the pipe being connected at its ends to coiled conduit portions which are housed with it in a stainless steel sleeve (28) and connected to the rest of the conduit 18, 20.
Patent GB-1283449-A (GB)
Title: Improvements in or relating to methods of constructing multi-storey buildings
Inventor: LJUNG TORSTEN NICKOLAUS
IPC: E04B1/35
Filed: 1970-11-24
Abstract: 1283449 Erecting buildings T N LJUNG 24 Nov 1970 55940/70 Heading E1S A method of erecting buildings involves casting floor slabs 2 and bearing walls 3 in alternate horizontal layers on top of each other, and then raising the slabs, erecting the walls thereon and finally placing them in position. The walls are hinged to the adjacent (higher or lower) floor slabs, and hoisted into position using temporary columns by means of jacks 7 and lifting rods, or lifting beams 4 in the case of the top slab. With lower-hinged walls (Fig. 9), the walls 3 are automatically raised into position by hooks 16 on trolleys 15 running on rails on a higher slab, with upperhinged walls, the walls are dropped into position from a temporary fixing 12, Fig. 6. All the slabs after the top slab are lifted into position via their associated, erected bearing walls, for load-distribution purposes. Mortar 9 is used under the bottom-hinged walls, Fig. 7, which have protective lower channel edging 20.
Patent GB-1284406-A (GB)
Title: Rubber composition
Inventor: GROSZEK ALEXANDER JERZY
IPC: C08K3/04
Filed: 1968-11-27
Abstract: 1284406 Rubber compositions containing graphite BRITISH PETROLEUM CO Ltd 27 Nov 1969 [27 Nov 1968] 56308/68 Headings C3P and C3Q A composition comprises a natural or synthetic rubber having compounded therein an oleophilic graphite which has been prepared by grinding a natural or synthetic graphite below the surface of an organic liquid, preferably in the absence of air. The rubbers include ethylenepropylene terpolymers and SBR. The compositions may include oil and conventional vulcanizing ingredients.
Patent GB-1115839-A (GB)
Title: Improvements in or relating to mercury switches
IPC: H01H29/02
Filed: 1966-12-22
Abstract: 1,115,839. Mercury switches. SIEMENS A.G. 22 Dec., 1966 [23 Dec., 1965], No. 57336/66. Heading H1N.  A mercury switch operable in any attitude independently of gravity, comprises mercury droplets 9a, 9b, Fig. 2, deformable by pressure as by plungers la, 1b so that the mercury is forced into intercommunicating capillary passages 5. The droplets 9a, 9b lie in recessed contact inserts 3a, 3b of an insulating housing 2 which may be hermetically sealed and contain an inert gas. Additional narrower capillary passages 6a, 6b provide flow space under excess pressures. In a modification, a single mercury droplet 9c, Fig. 3, is forced along capillary passages 5a, 5b by pressure on a flexible diaphragm 8 and engages fixed mercury contacts 9a, 9b which in this example are not deformed. The switches may be actuated electromagnetically.
Patent GB-1246269-A (GB)
Title: Steering wheels for road vehicles
Inventor: BURTON HAROLD WILLIAM
IPC: B62D1/06
Filed: 1967-12-20
Abstract: 1,246,269. Steering wheels. JOSEPH LUCAS (INDUSTRIES) Ltd. 9 Dec., 1968 [20 Dec., 1967], No. 57866/67. Heading B7J. [Also in Division H1] A vehicle steering wheel includes a rim comprising a rigid annular member 11 and an annular polyurethane moulding 16, two diametrically opposed channelled spokes 12 integral with the member 11 and surrounded with foamed polyurethane, and a hub; an electrical switch being totally enclosed within the rim and comprising an annular electrically conductive contact strip 13 fixed in the moulding, and a movable contact ring 14, the ring and strip being insulated and urged away from one another by annular rubber strips 15, the contact ring being capable of movement into engagement with the contact strip to complete a horn circuit. The switch is arranged in the rim such that the portion of the moulding 16 that covers the contact ring 14 is sufficiently flexible to permit the contact ring 14 to be moved into engagement with the strip 13. An electrical lead 17 connecting the ring 14 to the horn and battery passes along one spoke while a lead from the strip 13 passes along the other spoke.
Patent GB-1408452-A (GB)
Title: Production of magnetic recording media
IPC: G11B5/70
Filed: 1972-12-15
Abstract: 1408452 Magnetic compositions BADISCHE ANILIN- & SODA-FABRIK AG 15 Dec 1972 [16 Dec 1971] 57928/72 Headings C3R and C3P In a process for the production of magnetic recording media comprising preparing a dispersion of finely divided magnetic pigment in a binder comprising a polyurethane and an organic solvent and applying a layer of the dispersion to a substrate followed by drying, 1À5 to 12.p.b.w. per 100 p.b.w. of magnetic pigment of at least one ethylenically unsaturated C 3 -C 20  polymerizable carboxyl-containing compound are added prior to or during dispersion, the polymerization being effected during dispersion. Preferred carboxyl-containing compounds are acrylic acid, methacrylic acid, fumaric acid, maleic acid, crotonic acid and linolenic acid. Preferably 0À05-2 p.b.w. per 100 p.b.w. of carboxyl containing compound of a peroxide or diazo compound polymerization initiator is added, and also a copolymerizable mono olefinically unsaturated monomer such as styrene or methyl vinyl ether. Additional binder such as polycarbonates and phenol-formaldehyde resins may be added in amounts of 10- 40% wt. of the total binder system. Other optional additives include dispersing agents, fillers and/or lubricants such as metallic soaps, stearic acid, fatty acid esters, waxes, silicone oils and carbon black. In the examples magnetic dispersions are prepared by milling (1) acicular 8 iron III oxide, conductive carbon, lecithin, an aliphatic branched alcohol of M.Pt. + 15‹ C., a polyurethane prepared from adipic acid, butane-1,4-diol and 4,4<SP>1</SP>-diisocyanatodiphenylmethane, tetrahydrofuran (THF), polydimethylsiloxane, methyl ethyl ketone peroxide, styrene, maleic acid and cobalt naphthenate; (2) acicular 8 iron III oxide, conductive carbon, acrylic acid, cyclohexanone peroxide, an aliphatic alcohol of M.Pt. -10‹ C., a polyurethane as in (1), a polycarbonate prepared from diphenylolpropane and phosgene, dioxane, THF, and polydimethylsiloxane; (3) acicular 8 iron III oxide, conductive carbon, lecithin, methacrylic acid, polyurethane as in (1), an epoxy resin, THF, an ester of an aliphatic carboxylic acid and an aliphatic alcohol of M.Pt. 5‹ C., polydimethylsiloxane, azodiisobutyronitrile, cyclohexanone peroxide and cobalt naphthenate. The dispersions are coated on to polyethylene terephthalate films and the magnetic particles are then oriented immediately by applying a magnetic field.
Patent GB-1242437-A (GB)
Title: Data processing system
IPC: G06F13/34
Filed: 1968-12-09
Abstract: 1,242,437. Data processing. INTERNATIONAL BUSINESS MACHINES CORP. 9 Dec., 1968 [2 Jan., 1968]. No. 58364/68. Heading G4A. A data processing system comprises an addressable main store for storing (microprogramme) control words and other words (e.g. instructions and operands), a control register to which a control word is transferred from the main store in order to control a normal processing routine, a control word generating device responsive to a signal requesting an interrupt processing routine to generate a control word for the interrupt processing routine without reference to the main store and to place the generated control word in the control register, and an auxiliary store accessed by the generated control word to obtain the main store address concerned with the interrupt routine. An addressable local store (the auxiliary store) has locations for operands, main store addresses, indicators, counters and backup, and is addressed from logic controlled by the control register and a mode register (itself controlled by the control register). Interrupt (trap) requests (e.g. from I/O devices or error detectors) are decoded in conjunction with the contents of an MMSK register to select a main store address corresponding to the highest priority request (except that hogging of the interrupt facilities by high priority interrupt sources is prevented), the control word at this address setting a selected bit in the MMSK register. This register now overrides the mode register in the control of local store addressing. Three latches switched on in succession control logic to form and insert into the control register successive control words to control processing of the interrupt, including in the ease of I/O, accessing and updating of a main store address and a count (both from the local store) and data transfer between the main store address and the I/O device involved. Hardware is provided for insertion or deletion of word marks and group mark word marks, if the main store uses them but the I/O devices do not. The programmer may block out certain priority levels in the interrupt selection by microprogramme control of the MMSK register to insert a particular bit into it. When the interrupt has been dealt with, the interrupted microprogramme continues, main store address registers not altered during interrupt processing still holding the next address for the interrupted microprogramme.
Patent GB-1182160-A (GB)
Title: Rolling Mill Control Apparatus.
IPC: B21B37/64
Filed: 1967-12-22
Abstract: 1,182,160. Rolling. SHIBAURA KYODO KOGYO K.K. 22 Dec., 1967 [30 Dec., 1966], No. 58468/67. Heading B3M. [Also in Division G3] In a rolling-mill, electrical signals dependent on rolling load, the screw-down force applied to back-up rolls, and the distance between the axes of the working and back-up rolls, are combined to control an hydraulic cylinder applying force to the back-up rolls. As shown, work rolls 1a, 1b are engaged by back-up rolls 2a, 2b to which forces are applied by screw members 4 and an hydraulic cylinder 9 all of which act between a housing 16 and a lower back-up chock 7b. An electrical signal from a load cell 5 responsive to the rolling load is amplified at 12 and multiplied at 13 by a factor dependent on the spring constants of the mill so that, when opposed at 14 to an electrical signal from a screw load responsive cell 3 amplified at 11, any difference is normally effective to adjust a valve 15 controlling the fluid pressure applied to cylinder 9 to maintain the ratio between roll load and screw load constant and thereby ensure a constant roll gap under load. However, to compensate for variations in the relative position of the axes of the work and back-up rolls, e.g. due to changes in their diameter, these variations are detected by electrical pick-offs 6a, 6b which also apply signals, suitably proportioned at 10, to controller 14.
Patent GB-1163417-A (GB)
Title: Double-Walled Boiling, Roasting and Baking Vessel and Method of Producing the Same
IPC: A47J27/00
Filed: 1966-12-30
Abstract: 1,163,417. Double-walled cooking vessel. AUSTRIA VEREINIGTE EMALLIERWERKE, LAMPEN-und METALLWARENFABRIKEN A.G. 30 Dec., 1966 [17 Feb., 1966; 17 Nov., 1966], No. 58470/66. Heading A4A. A double-walled boiling, roasting or baking vessel comprises two metal vessel parts one of which is inserted within the other to define between them a space connected to the ambient air by way of communication paths in the form of channels or fissures, the vessel parts being in contact with one another at edge regions thereof and the channels or fissures being provided at said edge regions, said space being adapted at least in the cold condition of the vessel or at room temperature to be sealed off in liquid tight manner from the direction of the outside atmosphere to the inside space, while at the same time gas is able to escape from the space when the pressure therein is sufficiently high as to require such egress.
Patent GB-1363099-A (GB)
Title: Manufacture of pure alkali metal salts of aminopolycarboxylic  acids
IPC: C07C/
Filed: 1971-12-17
Abstract: 1363099 Alkali metal aminopolycarboxylates BADISCHE ANILIN- & SODA-FABRIK AG 17 Dec 1971 [18 Dec 1970 13 Oct 1971] 58652/71 Heading C2C Alkali metal salts of compounds of the formula in which R<SP>1</SP> is H or -CH 2 COOH or  and A is -CH 2 COOH or a group where R<SP>2</SP> is H, -CH 2 COOH or -CH 2 CH 2 OH, and n is 0-5, are prepared by reacting an alkali metal cyanide, formaldehyde, and (where A is a group of Formula II) a compound of formula where R<SP>3</SP> and R<SP>4</SP> are H or -CH 2 CH 2 OH, in aqueous solution and separating the alkali metal salt by evaporating the resulting solution, at least part of the reaction solution, after its partial concentration and removal of precipitated product salt, being recycled to the reaction chamber. Examples prepare sodium nitrilotriacetate, ethylenediaminetetra-acetate and hydroxyethylethylenediaminetriacetate; other aminoacids are specified.