baber/WOPTO huggingface dataset:
Patent GB-1364348-A (GB)
Title: Magneto-resistive devices
IPC: G11B5/31
Filed: 1972-12-19
Abstract: 1364348 Magneto-resistive transducers COMPAGNIE INTERNATIONALE POUR L'INFORMATIQUE 19 Dec 1972 [22 Dec 1971] 58624/72 Heading G5R  A read head includes a magneto-resistive layer 1 of magnetically anisotropic material which carries an electrical current I, the easy direction A being inclined to the direction of current flow, preferably at 45 degrees. The layer 1 may, as shown, be U-shaped with terminals 5, 6, or may be built up of segments, Fig. 8 (not shown), defining a zig-zag current path at an angle to one edge to which the easy direction A is parallel. The layer 1 is sandwiched between thicker, high permeability layers 2, 3 which concentrate the magnetic flux, being insulated therefrom by dielectric layers 7, 8, e.g. of SiO 2 . All magnetic layers may be of the same material, e.g. a Ni-Fe alloy. The thickness of layer 1 is 200-300, the thickness of layers 2, 3 being at least four times greater. A stack of such devices may be provided on a substrate. A flat winding 12 may be interposed between two devices 10, 11 to space the layers and define a gap ER, so that the device may be used for writing.
Patent GB-1325630-A (GB)
Title: Benzodiazepine derivatives and a process for the manufacture  thereof
IPC: C07D261/20
Filed: 1971-12-23
Abstract: 1325630 Benzodiazepines F HOFFMANN LA ROCHE & CO AG 23 Dec 1971 [23 Dec 1970 (2)] 59982/71 Heading C2C Compounds of the general formula (B = CH 2 CO; R 1-4  = H, C 1-6  alkyl; R 5  = H, halogen; R 6,7 = H or R 6+7  = C-N bond) and their acid addition salts are prepared by (a) reducing or treating with a C 1-6  alkyl lithium a compound of the formula or (b) cyclizing a compound of the formula optionally followed by alkylation, oxidation or reduction and/or salt formation. The above compounds are anticonvulsants, muscle relaxants and sedatives, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1425664-A (GB)
Title: Facsimile device with sheet-clamping mechanism
IPC: B41J13/22
Filed: 1973-12-28
Abstract: 1425664 Facsimile apparatus MINNESOTA MINING & MFG CO 28 Dec 1973 [29 Dec 1972 60052/73 Heading H4F In facsimile apparatus employing a rotating drum an edge of the record sheet (or document to be transmitted) is inserted through a longitudinal slot provided in the drum surface and clamped against the inner surface of the drum by releasable clamping means comprising a plurality of gripping fingers mounted inside the drum. A transducer driven stylus is positioned adjacent the outer surface of the drum for producing an image on the record sheet. As shown in Figs. 2, 3, 6 and 8, the drum 12 has a slot 35 in which a clamp member 50 is slidably mounted, member 50 comprising a bar 54 (Fig. 6) carrying gripping fingers 64-78 on its upper surface and leaf spring assemblies 84A on its lower surface such that, without the restraining action of a solenoid operated lever arm 94, the clamp member 50 is urged "upwardly" to cause the fingers 64-78 to clamp the record sheet 8, when inserted (Fig. 8), against the tapered inner surface 37 of the lip 42 of the slot. By suitable dimensioning the slope of the clamping surface 37 (Fig. 8) maximum ease in inserting the sheet is realized and by suitable dimensioning of the angle # (Fig. 8) any force tending to withdraw sheet 8 in the direction of arrow E urges the end portion 84 of the finger against surface 37 so that the clamping force is increased. To unload the sheet 8 solenoid 102 is energized so that lever arm 94 depresses the clamp member 50 "downwardly" out of contact with the sheet. When the sheet is a document to be transmitted a light source 118, Fig 7, supported by a carriage 112 (which may be manually slid along rods 114, 116 by knob 122) is arranged to scan the document. When an image is to be recorded on the sheet a pressure transducer 126 supported by the carriage operates a stylus 128 to mark the sheet a shaped guide shoe 130 biased by spring 134 against the drum surface serving to protect the stylus as it traverses the slot opening. Fig. 1, shows the general structure as a facsimile transceiver in which transmission and reception of facsimile signals is effected in the form of acoustic energy via a telephone handset 2.
Patent GB-1283561-A (GB)
Title: A method of and device for providing a control of the velocity profile of the working medium in the inlet of flow machines
Inventor: WETTERSTAD LENNART
IPC: F04D27/02
Filed: 1969-12-11
Abstract: 1283561 Axial and radial flow turbomachines; fluid logic switching circuits SVENSKA FLYGMOTOR A B 11 Dec 1969 60433/69 Headings F1C F1P and F1T To eliminate guide vanes at the inlet of a turbomachine the swirl in the working flow is controlled by tangential jets of fluid, in the same state as the working fluid, introduced near the rotor inlet. The machine may be a steam, gas or hydraulic turbine, a compressor or fan, or a pump and may be of axial or radial flow type. In the arrangement shown in Figs.1, 2 a supercharging compressor 1 of a diesel engine is mounted in a casing 2 having an inlet 3 with means 6 for introducing control air. The latter consists of orifices in radial tubular struts 7 which support a hollow hub 4. Some of the struts 7 communicate with the interior of hub 4 and have orifices directed in the direction of rotation of the rotor 1 so that when control air is supplied through pipe 8 a swirl in that direction is set up in the working air. The remaining struts 7 communicate with an annular manifold in the casing 2 and have orifices directed in the opposite direction so that an opposite swirl is set up when control air is supplied through pipe 9. The swirl is increased by the convergence of the casing 2. The distribution of the orifices may vary along each strut 7. The control air is tapped from the outlet of compressor 1 via a control unit 10 which may include mechanical or electrical valves or fluidic switches. Alternatively the control air may be supplied by a separate source. The control unit 10 may include a fluidic switching system, Fig. 3, comprising monostable and bi-stable devices 30, 33 respectively, a vortex device 35 to restrict flow and proportional devices 37 to 40. Control may be in response to compressor inlet or outlet pressure or rotational speed. In modifications the fluidic system includes two non-symmetric bi-stable devices, Fig. 5 (not shown) or the combination of the fluidic switch with a mechanical valve, Fig.7 (not shown). (For Figures see next page)
Patent GB-1338910-A (GB)
Title: Gear tooth forms
IPC: F16H55/08
Filed: 1970-12-22
Abstract: 1338910 Toothed gearing ILLINOIS TOOL WORKS Inc 23 Dec 1970 [29 Dec 1969] 61145/70 Heading F2Q A gear set comprises a pair of mating gears having conjugate gear teeth wherein the relative curvature of the gear teeth at every point is within 20% of its value when contact is at the pitch point. Preferably the relative curvature is within 5% or 1%. A differential equation for the path of contact is given together with an equation for an approximate solution to the differential equation.
Patent GB-1300235-A (GB)
Title: Preparation and purification of semiconducting gallium compounds
IPC: C30B11/00
Filed: 1969-12-31
Abstract: 1300235 Semi-conducting gallium compounds SUMITOMO ELECTRIC INDUSTRIES Ltd 31 Dec 1969 63481/69 Heading C1A Semi-conducting compounds of gallium such as GaAs, GaP, (Ga, In)As, (Ga, Al)As, Ga(As, P) or (Ga, In)P are obtained in the form of crystals having a low or controlled silicon content by forming a melt containing the constituents of the required compound in a reaction vessel (usually made of silica) which is enclosed in a silica tube, in the presence of a first additive selected from Si, Al, B and compounds of these, other than oxides, and a second additive which reacts with the melt to form a gallous oxide atmosphere and is selected from O 2 , CO 2 , and metal oxides which decompose under the reaction conditions, such as Ga 2 O 3 , As 2 O 3  or AS 2 O 5 , and forming the crystals from the melt. The Ga 2 O oxide atmosphere reacts with the first additive (and any other silicon initially present in the melt) to form an oxide film which protects the melt from contamination by reaction with silica in the reaction vessel and/or tube, even if the Ga 2 O pressure subsequently drops, e.g. due to reaction with Ga or As. If the first additive is silicon or a silicon compound, products having a controlled level of silicon contamination may be produced by selecting the quantities of the two additives so that not enough Ga 2 O is produced to remove all the silicon. Other dopants may also be added to the melt, Sn, Te and Cr being exemplified. In Examples 1 to 6 GaAs is prepared by the "horizontal Bridgeman" technique in the presence of As 2 O 3  and silicon. Fig. 3 shows apparatus which may be used and the temperature profile of the furnace. The silica reaction tube, 9, contains arsenic, 13, at one end while the other, hotter, end contains gallium and silicon in a silica vessel, 14, and some As 2 O 3 . The narrowness of the connecting tube, 11, prevents the Ga 2 O which is formed in the hot zone from diffusing to the cooler zone and condensing. The vessel, 14, also contains a seed crystal of GaAs, 15, on to which the product crystallizes as the furnace is moved slowly to the left. The method of the invention may also be used to purify pre-formed gallium compounds by melting them in the presence of the two additives and re-crystallization: the "zone refining" and "zone levelling" techniques may also be used.
Patent GB-737854-A (GB)
Abstract: 737,854. Domestic fire fronts. GRIMBLEBY, C. R. Dec. 16, 1953, No. 34993/53. Class 126. A domestic firegrate front A comprises openings (B), (C), the latter opening to the space beneath the grate while the former opens into the space above the grate. Doors (B.1), (C.1), hinged respectively at their lower and upper edges, are associated with the openings each adapted to be held in its vertical closed position by a catch, the door (B.1) resting, when not covering the opening (B), in a horizontal position such that it may be utilized as a shelf for supporting utensils before the fire. The catch (F) provided for the door (C.1) is such that it may hold the door open in various angular positions controlling thereby the amount of combustion air passing to the space beneath the grate. The grate (Fig. 5) is formed with upstanding grid bars which are located, when the grate is in use, behind the opening (B).
Patent GB-744266-A (GB)
Abstract: 744,266. Semiconductor rectifier arrangements. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., WALKER, A. H. B., and LOCKETT, L. J. May 19, 1954 [June 30, 1953], No. 18121/53. Class 37. A metal rectifier assembly comprises a block 6 of insulating material with a first series of rows of equally spaced holes containing rectifier elements 15. Fig. 1 shows a plan view, and Fig. 2 an underside view of the assembly. A second series of holes 7, having the same equal spacing, is provided between and on the outer edges, of the first series of rows. Spring connecting links 10 and 19 are provided to interconnect desired pairs of rectifying elements, each link being held in position by lugs which project into the holes 7. Connecting lugs 20, each of which has a long projecting lug 4, which also penetrates one of the holes 7, are used to provide means for an external connection to any desired rectifier stack. The whole is enclosed in a metal case 2 which has ears 13 which engage a metal closure plate 5. Sheets of insulating material are used to insulate the rectifier stack and connecting links and tags, from the metal case and closure plate. The insulating sheets are made thin to provide efficient cooling of the rectifier elements.
Patent GB-2028630-A (GB)
Title: Plastics ashtray for vehicles
IPC: B60N3/08
Filed: 1978-11-29
Abstract: A plastics ashtray for a vehicle has a cover element (10') of box shaped form with one open end into which an ash-box (14') can be inserted. A resilient formation (27) which may include a groove (28) which is preferably formed in the floor plate (43) of the housing <IMAGE>
Patent GB-2015541-A (GB)
Title: Coating compositions for polyolefin films
IPC: C08J7/052
Filed: 1979-01-04
Abstract: A coating composition for polyolefinic products, particularly films, which consists essentially of a solution of a three-component polymeric system comprising:     (a) a vinyl or vinyledine chloride copolymer;   (b) a polymer of (meth)acrylic ester(s); and   (c) a coumarone-indene resin. The coated products are useful as packaging films having e.g. improved thermosealability.
Patent GB-2016904-A (GB)
Title: Trouser end constructions
IPC: A41D1/082
Filed: 1979-02-26
Abstract: The legs of ski trousers have elastic bands 1, 2 stretched with respect to the fabric and located in use outside the ankles and upper borders of the boots. An abrasion resistant material strip 3 lines the legs between the bands. <IMAGE>
Patent GB-2017950-A (GB)
Title: Photographic diffusion transfer process
IPC: G03C7/28
Filed: 1979-02-26
Abstract: A colour photographic process is described which includes the steps of:-   (a) imagewise exposing a photographic assembly which comprises at least during the silver halide developing step, in order, optionally a supercoat layer, at least one silver halide emulsion layer, a dye mordant layer and a support base, there being optionally one or more interlayers between each of the said components and there being associated with the silver halide emulsion layer a compound of the general formula:-       D - E - F - BAL where D is a group which contains the residue of a diffusible dye, BAL is a ballasting group, D and E being joined by any type of chemical bond, and E and F represent a single or double bond system which links D and BAL and which has a reduction potential above -200 mV measured against a standard hydrogen electrode at a pH of less than 3 and which bond can be reductively cleaved at a pH of less than 3 by a reducing agent which is able to act at a pH below 3 (b) processing the exposed assembly to develop the latent image in the silver halide emulsion layer(s) (c) and simultaneously or subsequently producing an imagewise distribution of a reducing agent in an aqueous acid medium having a pH below 3 and reductively cleaving the E - F bond of the compound of the above formula thereby liberating a diffusible dye imagewise (d) allowing or causing the diffusible dye to diffuse to the dye mordant layer (e) and there to mordant the dye to form a dye image having a peak absorption within the range of 300-800 nm.   A photographic material for use in the above process is also claimed.   A large number of suitable compounds are described including azo compounds. A large number of suitable reducing agents are described including pyrazine compounds.
Patent GB-2016131-A (GB)
Title: Self-contained connector unit for rotationally-symmetrical lamps
IPC: F21V23/02
Filed: 1979-03-09
Abstract: A connector unit for a rotationally- symmetrical lamp is provided as an integral unit for mounting on the lamp reflector (5). The unit symmetrically encloses a support frame (1) of the lamp and is spaced therefrom by a cooling channel (7). The unit has a choke winding that is formed in two parts (2,2) at respective sides of the frame (1) and separated therefrom by the cooling channel (7). Other electrical components (3) of the unit are disposed between the winding parts (2,2). A thermally-insulating cylinder (4) may be disposed in the cooling channel (7) to insulate the electrical components (2,3,10) of the unit from the lamp. The components of the unit may be embedded in resin. <IMAGE>
Patent GB-2014839-A (GB)
Title: Process for manufacture of textured vegetable protein products with paste-like consistency
IPC: A23J3/22
Filed: 1979-03-22
Abstract: A process for the production of a textured vegetable protein, particularly soya protein, of a particle size which in the final product is arranged to provide a meatlike textural mouth-feel characteristic. The vegetable protein is hydrated with a water having a pH of less than 8.5 under controlled conditions to provide a limited water intake which is less than the theoretical possible water intake for that material. The resulting controlled hydrated material is drained prior to further treatment and combined with molten fat and a coaguable animal protein which, when heated, provides the necessary final paste-like textural characteristics required for the final product.
Patent GB-2044858-A (GB)
Title: Device for varying fluid intake to an apparatus
IPC: F02M7/18
Filed: 1979-03-22
Abstract: The tapered tip of a rod (16) is disposed within a jet (3) of a carburettor that by displacing the rod (16) the size of the opening through the jet is varied, displacement of the rod (16) being effected by a pivotably mounted lever (22) having an eccentric portion (23) which is urged against the base portion of the rod by an actuator (50) coupled to the lever (22) by a cable (30). The actuator may comprise a laterally and vertically displaceable pedal (50), an air throttle butterfly of the carburettor being actuated by vertical displacement while the rod (16) is actuated by lateral displacement. The actuator may alternatively be a knob mounted on a control panel. <IMAGE>
Patent GB-2018716-A (GB)
Title: Container carrying vehicles
IPC: B60P1/64
Filed: 1979-05-16
Abstract: Apparatus for hoisting a container on to a vehicle, provides means for detecting misalignment between the vehicle and the container during loading. Usually the container is provided with a lifting bar and the vehicle is provided with a hook on the end of a lifting arm. Further, the vehicle usually includes rollers at the rear of the vehicle over which the container is pulled. According to one aspect, the invention provides means for detecting misalignment between the lifting bar on the container and the hook on the lifting arm, while, in accordance with another aspect, the invention provides means for detecting lateral displacement of the container relative to the rollers. Preferably the two systems are provided in combination, and the arrangement is such that lifting is inhibited when either system detects misalignment. Further the inhibition may be limited to a particular range of angular positions of the lifting arm. <IMAGE>
Patent GB-2054468-A (GB)
Title: Method for producing labels
IPC: G06F17/24
Filed: 1979-07-27
Abstract: A method for producing labels bearing respective elements of information, an example being addressed labels from a mailing list, involves preparing a programme on punched tape for a telex machine, such that the machine will type out the addresses or other elements of information in spaced formation. The conventional paper feed in the machine is then replaced by a web formed with labels, the arrangement of which corresponds to said spaced formation. The telex machine can then be operated under the control of the programme to type out the labels as many times as is required.
Patent GB-2055308-A (GB)
Title: Material grading apparatus
IPC: B07B13/00
Filed: 1979-07-28
Abstract: Apparatus for separating "longs" from bulk material, e.g. unwanted rod-like lengths of extruded plastics in the production of uniformly pelleted plastics or straws and twigs from grain or seeds, uses a vibratory feed trough (10) having longitudinal ridges defining a series of valleys (13) in which the longs will be aligned for endwise movement. Lugs or projections (14) may be added, staggered across the width to turn the longs into the valleys. A gap (16) is defined between a downstream end of the trough and a receiving section 11 which the aligned longs will cross while remaining material is separated by dropping through the gap. <IMAGE>
Patent GB-2028602-A (GB)
Title: Cable terminations and electrical cables therewith
IPC: H01R9/11
Filed: 1979-08-21
Abstract: A terminal arrangement for a cable (1) e.g. of a kind making connexion to a thermocouple junction has a metal outer sleeve (10) that is welded about its rear end (14) only to a metal inner sleeve 15. The inner sleeve (15) is welded about its forward end only to the forward end (16) of a metal sheath (2) of the cable (1) within which extend two flexible thermocouple wires (3 and 4) of a nickel chromium and of a nickel aluminium alloy. The forward end (17) of the outer sleeve (10) is welded to the forward end only of a further inner sleeve (18) that supports an electrically-insulative filling (19) of compacted magnesium oxide. The filling (19) supports two rigid wires (6 and 7) that are joined at their rear ends to respective ones of the thermocouple wires (3 and 4), the rigid wires being of the same material as the thermocouple wires. The intermediate portion (12) may be filled with a glass material. This filling would prevent the passage of moisture between the magnesium oxide filling (19) and the cable (1). The siting (14, 16, 17) of the welds allows differential thermal expansion of the arrangement without subjecting the joints (20, 21) to high stress in the case of thermocouple use. <IMAGE>
Patent GB-2031954-A (GB)
Title: Improvements in or relating to methods of forming pyrolitic carbon coatings
IPC: A61F2/00
Filed: 1979-09-14
Abstract: Metal or other surfaces such as ceramic are coated with pyrolytic carbon by contacting the surface in a closed vessel with a charge of hydrocarbon gas so that liberated hydrogen remains in the vessel. Several cycles of coating may be effected, the vessel being evacuated between cycles. The preferred substrate is stainless steel, the coated product being used as an orthopaedic implant.
Patent GB-2067506-A (GB)
Title: Identity band
IPC: G09F3/00
Filed: 1980-01-15
Abstract: An identity band consists of first and second portions of plastics sheet material 10, 11 welded together at their peripheries to define a pocket which receives a paper label 15 on which the name of a patient can be written. The band includes at opposite ends members 12, 13 of a press stud which can be joined to form a loop around the limb of a patient. A series of holes 14 is formed in a line along the length of the band, and the press studs are closed through a selected one of the holes 14 to shorten the effective length of the band. A longitudinal bar weld 19 is formed along the line of the holes 14 to strengthen the band and to prevent liquids entering the band through the holes. A circular weld 20 is formed around one of the press stud members to distribute tensile stresses applied to the band to prevent it from tearing. Flaps are formed on the underside of the band to prevent the press stud members 12, 13 from coming into direct contact with the skin of a patient. A piece of adhesive tape 17 seals the pocket opening when the pocket is closed. <IMAGE>
Patent GB-2072848-A (GB)
Title: Scale means for displaying information
IPC: G04B19/06
Filed: 1980-03-27
Abstract: Display means suitable for e.g. a clock face, comprising:   (a) first scale means (1 to 6), having spaced graduations representing values of a quantity e.g. hours (b) second scale means (5 to 25), having spaced graduations representing values of a quantity e.g. minutes related to the values of said graduations of said first scale means; and (c) third scale means (7 to 12), having spaced graduations representing values of a quantity e.g. hours related to the values of said graduations of said first scale means and/or the values of said graduations of said second scale means. The clock is divided into different coloured halves and the values of the minutes graduations are denoted in the form in which time is normally expressed i.e. 20 minutes past the hour, or 10 minutes to the hour, to enable it to be used as an educational aid. Instead of radial graduations the scales may show graduated colouring or brightness.   <IMAGE>