baber/WOPTO huggingface dataset:
Patent GB-1079056-A (GB)
Title: Improvements in or relating to regulating apparatus
Inventor: HENDLEY DENNIS ALFRED
IPC: H03L1/02
Filed: 1964-09-28
Abstract: 1,079,056. Measuring temperature electrically. DECCA Ltd. Sept.13, 1965 [Sept. 28, 1964], No. 39449/64. Heading G1N. Frequency variations of a resonant circuit element such as an LC network, 40, Fig. 1, or a crystal represented thereby, which variations are proportional to the square of the temperature change from a datum value, are corrected by generating by means of bridges 14, 24 a signal the amplitude of which is proportional to the square of the temperature change, and by using this signal to control the value of a reactance 36 connected across the circuit element 40. The bridges may be Wheatstone bridges, or may each consist simply of a pair of resistors of different thermal coefficients series connected across an a.c. source 10. The bridges are balanced at the datum temperature, which would be the turnover temperature of the crystal, 40. The output of the first bridge 14 energizes the second bridge 24 via a transformer 20, to give a signal dependent upon the square of the temperature change, this being amplified at 30 and rectified at 32 to control the variable reactance 36, which may be a variable capacity diode. The square law relation may be modified by rectifying at 38 the signal from an extra secondary winding 22 on the transformer 20, and supplying this also to the variable reactance 36.
Patent GB-1044784-A (GB)
Title: Method of forming a grinding member
Inventor: HALLEWELL ROLAND THOMAS
IPC: B24D18/00
Filed: 1963-10-07
Abstract: A grinding member is made by forming a body of a kneadable composition, comprising a major proportion of comminuted metal suspended in a hardenable synthetic resin and a hardening agent for the said resin, and having abrasive embedded in at least one exposed surface thereof, and causing the said body to harden slowly with substantially no volume change to produce the grinding member having at least one grinding surface.  The surface may be profiled and may constitute the surface of a grinding wheel.  The composition may be electrically conductive.  In one form the composition is formed as a peripheral layer around the rim of a disc and hardened to form a grinding wheel.  The abrasive may be, for example diamond dust.  The metal in the composition may be, for example stee, aluminium or copper.
Patent GB-909139-A (GB)
Title: A device for recording impulses for measuring the inhaled and exhaled amount of air
IPC: A61B5/087
Filed: 1959-11-24
Abstract: 909,139. Spirometers. VYZKUMNY A ZKUSEBI LETECKY USTAR. Nov. 24, 1959 [Nov. 24, 1958], No. 39829/59. Class 81 (2). [Also in Group XIX] Apparatus for making a spirogram comprises a tube 1 through which a patient breathes, generating, within a tube 2, a differential pressure proportional to the velocity of inhaled or exhaled air, the differential pressure is applied to opposite sides of a diaphragm 5 which twists a torsional feeler 8 and generates an electromotive force for transmission through a member 12 to a recording head 13, which creates a magnetic record on a tape 14 to be picked up by a head 19 and introduced to a conventional spirograph 21 where it is modified and recorded visually. The magnetic recorder can be in miniature form suitable to be applied with the tube 1 and pressure-measuring mechanism to a moving subject. The magnetic record is afterwards transcribed and applied through a transmission member 20 to the spirograph 21 where the necessary mathematical corrections are made in the usual way.
Patent GB-1509858-A (GB)
Title: Sealing washer assemblies
IPC: F16J15/10
Filed: 1976-09-27
Abstract: 1509858 Sealing washer ILLINOIS TOOL WORKS Inc 27 Sept 1976 [29 Sept 1975] 39964/76 Heading F2H A sealing washer assembly comprises a rigid clamping member 10 and a resilient sealing washer 24, the clamping member 10 having a flat annular top wall 12, an outer wall 14 extending axially from the outer periphery of the top wall, and an inner wall 16 extending in the same direction as the outer wall from the inner periphery of the top wall, the inner wall 16 being of lesser axial extent than the outer wall 14, and the sealing washer 24 being a flat annular washer with an inner diameter D3 less than the inner diameter D1 of the inner wall 16 and an outer diameter D4 less than the inner diameter D2 of the outer wall 14, the thickness t 1  of the sealing washer being greater than the difference between the axial extents of the outer and inner walls. As shown, the inner wall 16 is frustoconical.
Patent GB-962344-A (GB)
Title: Flexible sheet radiation shielding material
IPC: E04B1/94
Filed: 1960-11-21
Abstract: 962,344. Laminates. MINNESOTA MINING & MANUFACTURING CO. Nov. 21, 1960 [Nov. 23, 1959], No. 39998/60. Heading B5N. [Also in Division B2] A flexible and drapeable material comprises a radiant heat-reflective metal film 10, a flexible backing 12, and an endothermal layer 13 adapted to absorb heat energy, in a non-violent manner, within the temperature range of 300 to 2000 F. by virtue of the changing of state of an endothermic filler material dispersed in the layer. As shown in Fig. 1, the metal film and endothermal layer may be bonded to opposite sides of the backing material. A separate adhesive layer 11 may exist between the metal film and the backing. As shown in Fig. 2, the endothermal layer 14 may be between the metal film and the backing. The endothermal layer which may be formed from a plurality of superimposed coatings of differing composition, may be between 5 and 45 mils. thick, may be foamed or cellular, and may comprise a flexible organic binder within which the endothermic filler is dispersed. The filler may be an organic or inorganic substance which is heat-intumescing and/or such as to non- combustibly dissociate into solid material and a gaseous material while absorbing heat, e.g. one or more of benzene sulphonyl hydrazide, perlite, vermiculite, mica, glass grit, calcium carbonate or sodium borate decahydrate. The metal film may be of aluminium, gold, platinum or metal alloys. The binder may be a silicone rubber, rubbery or flexible bisamide resin, epoxy resin, polyamide or polyfluorocarbon rubber. The backing may be woven glass, rayon, cotton or nylon, or a flexible film. The adhesive may comprise a polyvinyl butyral, butadieneacrylonitrile copolymer and a phenol aldehyde resin. The endothermal layer may contain extenders and pigments, e.g. titanium dioxide, zirconium silicate and powdered aluminium. The material of Fig. 1 is produced by forming a coating of aluminium, by vacuum deposition, on a cellulose acetate surfaced carrier web, applying a coating of adhesive over the metal layer, bringing the adhesive coating into contact with a woven glass web, curing the adhesive and applying a series of endothermal coatings to the exposed surface of the glass web. The cellulose acetate surfaced carrier web may be stripped from the assembly before or after the application of the endothermal coatings.
Patent GB-1146455-A (GB)
Title: Method of manufacturing a fibre-optical element
IPC: B01L3/00
Filed: 1967-09-01
Abstract: 1,146,455. Fibre-optical image transfer elements. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES; Ltd. 1 Sept., 1967 [2 Sept., 1966], No. 40033/67. Heading C1M. [Also in Division G2] A fibre optical image transfer element in which each fibre comprises a core of glass substantially free of monovalent ions, and a surrounding sheath of glass having a lower refractive index, is manufactured by exchanging monovalent cations in the glass of the sheaths of the element for such other cations that the light absorption increases to a desired depth. In a preferred embodiment alkali metal ions in the glass of the sheath are exchanged for silver ions, and the glass may contain electron donors such as As 2 O 3  or Sb 2 O 3  so that the diffused silver ions are converted to, black coloured particles. In a particularly suitable method no reducing corn,- pounds are added to the glass, but the glass containing silver ions is heated in a reducing atmosphere. The ions may be introduced by coating the surface of the element with a paste containing the relevant metal ions, heating the assembly, and rinsing away the remaining paste after cooling; by immersing the element in a bath of molten salt. or salt mixture containing the relevant metal ions; or-by coating one surface of the element lying at right angles to the longitudinal direction of the fibres, with an electrically conducting paste containing the relevant metal ions, which surface acts as an anode, coating the other surface with a graphite paste to act as a cathode and applying an electric field in the longitudinal direction of the fibres until the desired depth of penetration is attained. Glasses suitable for the core portion have a refractive index of 1À80 to 1À85 and may be composed in mol per cent of GeO 2  35-62; BaO 10-30; TiO 2  0-30; La 2 O 3  0-15; ZrO 2  0-10; Ta 2 O 5  0-5; ZhO 5-15; La 2 O 3  + ZrO 2  + Ta 2 O 5 . + ZnO together being at least 10%. Glasses which may be used for the sheath portion may have a composition in percentage by weight SiO 2  60À1; B 2 O 3  22À6; Al 2 O 3  3À9; Na 2 O 13À4.
Patent GB-1035548-A (GB)
Title: Improvements relating to rotary-piston engine housings
IPC: F02B55/08
Filed: 1964-10-02
Abstract: 1,035,548. Rotary-piston engines. DAIMLERBENZ A.G. Oct. 2, 1964 [Oct. 4, 1963], No. 40317/64. Heading F1F. A rotary-piston engine housing, particularly but not exclusively of trochoidal kind, made as a pressure die casting from light weight metal i.e., magnesium or aluminium alloy includes coolant chambers 4, 4<SP>1</SP>, Fig. 2, located between the inner and outer peripheral walls 1, 2 of the housing which are formed as recesses opening in the housing end faces and separated by a radial web 3 to permit the axial extraction of the die parts after casting. The recesses are closed by annular cover plates 6, 6<SP>1</SP> which seat in and are secured in annular side openings 5, 5<SP>1</SP> by adhesive material so that the outer faces of the cover plates are co-planar with the housing side faces.
Patent GB-1270716-A (GB)
Title: Method of bleaching
IPC: D06L3/02
Filed: 1969-08-12
Abstract: 1,270,716. Bleaching wood pulp. ATLANTIC RICHFIELD CO. 12 Aug., 1969 [19 Aug., 1968; 6 Dec., 1968], No. 40365/69. Heading D1P. Ligneous cellulosic materials, e.g. wood pulp, are bleached with a composition, usually an aqueous composition containing an organic hydroperoxide either alone or with hydrogen peroxide. The composition may also contain a buffer salt for example sodium or potassium tripolyphosphate or sodium silicate, with, if desired, sodium hydroxide and an anionic surfactant, for example a linear alkylbenzene sulphonate, wherein the alkyl group contains from 11 to 14 carbon atoms. If hydrogen peroxide is used in the bleaching composition, sodium silicate with or without sodium hydroxide is the preferred buffer salt. The bleaching step may be followed by a sulphite treatment using sodium sulphite, sodium bisulphite, zinc hydrosulphite, or sodium hydrosulphite solutions. Suitable organic hydroperoxides include tert-butyl, cumene and amyl hydroperoxides. The preferred percentage weight compositions, based on the dry weight of the treated material are as follows: organic hydroperoxide, between 0.1 and 2%, hydrogen peroxide, if present between 0.5 and 2% sodium and potassium tripolyphosphate, if present, between 1 and 2%, sodium silicate, if present, between 3 and 7% and sodium hydroxide if present, between 1 and 4%.
Patent GB-933473-A (GB)
Title: Improvements in and relating to transformer switching circuits
Inventor: SCOLES GRAHAM JOHN
IPC: H02H9/00
Filed: 1958-12-15
Abstract: 933,473. Excessive current protection. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 15, 1959 [Dec. 15, 1958], No. 40383/58. Class 38 (4). To limit the initial current surge when switching a transformer TR to a supply main, the main switch S1 is shunted by an impedance in the form of a resistor R in series with an auxiliary switch SR of smaller capacity which closes before the main switch. The impedance is equal to or slightly less than the impedance of the transformer primary winding in the unloaded condition. The load on the secondary winding may be a grid-controlled rectifier.
Patent GB-1279938-A (GB)
Title: Separator-conveyor for the products and associated scrap of molding and die-casting apparatus
Inventor: AIDLIN SAMUEL SIMEON
IPC: B65G15/42
Filed: 1970-08-21
Abstract: 1279938 Separating apparatus S S AIDLIN and S H AIDLIN 21 Aug 1970 [9 March 1970] 40445/70 Heading B2H [Also in Division B8] A separator-conveyor for products of different sizes, e.g. formed articles and scrap discharged from a moulding apparatus, comprises an endless belt conveyor 58 including an endless web 60 provided along its entire length with transversely-disposed, regularly-spaced, substantially flat, upstanding cleats 62 on its outer surface, whereby when the products are dropped on the conveyor belt those of relatively small size (76) fall into the spaces between the cleats and those of relatively large size (74) rest on the edges of the cleats, the small and large products being thereby discharged from one end of the conveyor belt at different distances from the web. The separator-conveyor may consist of sections 10, 12 set at different levels or may be horizontal along its entire length. The belt conveyor 58 is mounted over drums 40, 46 supported from the frame and its upper run fits within a channel 34, 36, marginal edge portions of the web 60 on either side of the cleats 62 moving freely under rollers 50, 52 mounted in the channel and serving to retain the belt conveyor in position. The small products are prevented from dropping out laterally from the spaces between the cleats by guard plates 68 while the large products are prevented from dropping laterally off the top of the cleats by upwardly diverging guard plates 70 which also serve to guide the products on to the conveyor. The large products 74 are discharged from the belt conveyor 58 on to a second conveyor 78.
Patent GB-1218536-A (GB)
Title: Internal combustion engine fuel systems and carburetters therefor
IPC: F02B1/00
Filed: 1969-08-14
Abstract: 1,218,536. Spray carburetters. GENERAL MOTORS CORP. Aug. 14, 1969 [Aug. 28, 1968], No. 40655/69. Heading F1B. A pressure responsive valve 18 in a chamber 13 connected to the float-controlled inlet 4 and the bottom opening 14 of the float bowl 1 is operable in response to the static pressure in the bowl, when no fuel is being pumped thereto by the pump 8, to open the port 17 to the opening 14. With the port 17 open fuel flows from the bowl 1 back to the tank 6 through the electrically driven centrifugal pump 8. When the pump 8 is in operation fuel flows from the chamber portion 13" to the portion 13' through one or more apertures 19 in the valve 18, the pressure difference between the chamber portions causing the valve to open the port 17, for flow to the bowl through the opening 14. A diaphragm or plunger pump with a by-pass to allow fuel flow back to the tank when inoperative may be used. The diaphragm valve 18 may be biased to close the port 17 by a spring.
Patent GB-1473987-A (GB)
Title: Console with lighted display
IPC: G09F13/00
Filed: 1975-10-06
Abstract: 1473987 Illuminated displays NORTHERN ELECTRIC CO Ltd 6 Oct 1975 [7 Oct 1974] 40797/75 Heading G5C An illuminated display, particularly for a telephone console, has a front cover of dark transparent material, an indicator sheet 40 of dark opaque material bearing an array of transparent indicator symbols, and a corresponding array of selectively energizable lamps 42 behind the sheet 40, one lamp for each symbol, the whole being arranged as a sandwich structure. A translucent sheet 41 may also be included. The structure is mounted in a console with a base 10 and a top 11, apertures 13 receiving control switches.
Patent GB-1177189-A (GB)
Title: Turf Appearance Improvement
IPC: C05G3/00
Filed: 1968-08-27
Abstract: 1,177,189. Improving turf colour. O. M. SCOTT & SONS CO. 27 Aug., 1968 [31 Aug., 1967], No. 40937/68. Heading C1B. Turf is treated with a granular N or NPK fertilizer composition containing pentachloronitrobenzene. 1-2 lb. of pentachloronitrobenzene and 0À9-1À8 lb. of nitrogen may be applied per 1000 sq. ft. of turf. Other ingredients specified are ferrous sulphate, vermiculite, polybutene, and hexylene glycol.
Patent GB-867030-A (GB)
Title: Impulse generating circuit
IPC: G06V10/28
Filed: 1959-12-03
Abstract: 867,030. Transistor circuits. NATIONAL CASH REGISTER CO. Dec. 3, 1959 [Dec. 10, 1958], No.41072/59. Class 40(6) A pulse generator comprises a capacitor 45 arranged to be respectively charged or discharged in response to the absence or presence of input pulses 12, the rate of discharge being increased at the end of pulse 12 until a predetermined voltage is reached, when a further pulse 87 is generated, the time interval between the mid point 16 of pulse 12 and the generation of pulse 87 being independent of the duration of pulse 12. As described, capacitor 45 is normally charged to -8V from the bi-stable trigger circuit 32 via the diode 48. Input pulses 12 on terminal 30 change the trigger circuit 32 to its other state, cutting off diode 48. Input pulses 12 may be the output of a magnetic tape store, after amplification and clipping and are also used to drive transistor 42 into conduction, so that the potential at either end of resistor 40, which is connected to the emitter of the normally conducting transistor 43, will be the same. Capacitor 45 will begin to charge towards +20V at terminal 37 via transistor 43 and resistor 39, following waveform 67. At the end of the pulse 12, transistor 42 is cut off so that resistors 38, 40 will present an effective shunt across resistor 39, halving its value and hence doubling the rate of discharge so that the potential across capacitor 45 follows waveform 69. When the voltage at point 56 reaches zero, transistor 57 is cut off causing transistor 58 to conduct and generate the leading edge of waveform 87 at terminal 54. The voltage at terminal 54 changes the trigger circuit 32 to its original state, recharging capacitor 45 negatively, and reversing the states of transistors 57, 58, thus terminating the output pulse 87 and restoring the circuit to its original state. Fig. 3 shows that provided the slope of the discharge curve 69 occurring at the end of the input pulse is twice that of the curve 67 occurring during the input pulse, the time interval between the mid point of the input pulse 12, shown at X in Fig. 3, and the generation of the output pulse, shown at t4, is constant. Curve 63 shows the result of applying an input pulse 11, the duration of which is equal to the time taken for capacitor 45 to discharge to zero potential at the lower discharge rate. Waveform 11 has the maximum duration the circuit can handle.
Patent GB-1405468-A (GB)
Title: Motor vehicles with automatically controlled safety harnesses
IPC: B60R22/06
Filed: 1972-09-05
Abstract: 1405468 Vehicle safety harness REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 5 Sept 1972 [23 Sept 1971] 4119/72 Heading A3V  A vehicle safety harness comprises a strap 11 anchored at two vertically spaced inboard points 17, 18 of which at least one is adjustable in height and a member 12, slidable along the strap 11, is connected to a traction element 14 which passes through a guide member 15 slidable along a fixed slideway 16 on the associated vehicle door and is provided with a winding device 13 so that the harness is automatically displaced between an operative and an inoperative position as the vehicle door is opened and closed. The movement of the guide member 15 along the slideway 16 may be facilitated by a tension spring connected between the members 12 and 15 or by passing the free end of element 14 back through the member 12 to an anchor point on the member 15. Alternatively an auxiliary traction element connected to the guide member 15 may be wound on an auxiliary winding device in the opposite direction to the element 14. The guide member may carry a pinion driven by the traction element 14 and meshing with a rack on the slideway. Fig. 7 shows a guide member in the form of a carriage 45 which is driven along the slideway 16 by a screw-threaded shaft 50 driven by an electric motor M. The upper anchoring point 18 may be lowered automatically to fit a wearer's anatomy when the engine is started by a piston-cylinder unit communicating with the vehicle's induction manifold and a spring returns the point upwards when the ignition is switched off. The safety harness may incorporate energy-absorbing devices and length-adjusting buckles or retractors.
Patent GB-1127183-A (GB)
Title: Improvements in or relating to methods and apparatus for controlling matrix setting and line casting machines
IPC: B41B27/00
Filed: 1965-09-28
Abstract: 1,127,183. Type - bar - making machines. LINOTYPE G.m.b.H. 28 Sept., 1965 [29 Sept., 1964], No. 41147/65. Heading B6W. Controlling by record-strip; assembling matrices. -For controlling a machine from a tape, the end-of-line signals in which are not suitable for the particular composing operation in progress, means is provided for stopping the sensing of the tape a preselected distance from the end of the line, means to actuate the sensing of the rest of the line by hand, or manually to initiate a stepwise scanning thereof, and means to indicate when the line is justifiable. Electric circuitry is provided whereby a space signal or a hyphen signal is transformed into an end-ofline signal when the line is justifiable, and whereby an end-of-line signal is transformed into a space signal when the line is not justifiable. Means is also provided to present a visual representation of a predetermined number of code signals after a particular sensed signal, or such a representation of said signals in plain language.
Patent GB-1022688-A (GB)
Title: Insulating refrigeration tank structure
Inventor: MACORMACK JAMES G
IPC: F17C3/02
Filed: 1962-11-02
Abstract: 1,022,688. Liquefied gas containers. ALUMISEAL CORPORATION. Nov. 2, 1962, No. 41593/62. Heading F4P. The air insulation space between a liquefied gas tank 11, Fig. 2 (not shown), having one or more side walls 31 and a domed top, and a surrounding shell 30, 77, Fig. 6 (not shown), formed of sheets of reflective metal, e.g. aluminium supported by an inner wooden framework and externally hermetically sealed at their abutting or overlapping edges is divided into one or more compartments, e.g. wall compartments 46, 48, 54, 57, 45 and roof compartments 79 by reflective metal sheets also supported by wooden frameworks and non-hermetically sealed at their adjacent edges to form continuous shells 26 . . . 29, 71, 70 and the inner compartments 46, 79 are connected to ambient atmosphere by valved vent ducts 88, 89 through which condensed moisture may be drained and drying air circulated. The supporting frame for the inner shell 26 comprises vertically spaced 25 and circumferentially spaced uprights 20 each of which is connected to the tank wall 31 by an expansion bolt 37, Fig. 5 (not shown). Shells 27 . . . 29 are supported by uprights 19, 18, 17, 16 and by cross-beams 24, 23, 22, 21 and the abutting edges of sheets 58, 59 forming the outer shell 30 are hermetically sealed to the exterior of uprights 16 by means of ductile adhesive tape 60, Fig. 4 (not shown), held by channel-sectioned screw clamps 61, 62 filled with caulking compound 64. The roof shells 70, 71, 77 are similarly supported by wooden frame members 67, 68, 69 and 73, 74, Fig. 1 (not shown); the inner frame members being secured to the upper face of the domed roof of the tank by expansion bolts 72, Fig. 7 (not shown). The peripheral edge of the outer roof shell 77 overlaps and is sealed to the upper end of the outer side of shell 30 and the annular space 76 formed between the tank and the junction of the shells 77, 30 is filled with conventional solid insulation. The base of the tank 11 is embedded in concrete 15.