baber/WOPTO huggingface dataset:
Patent GB-939663-A (GB)
Title: Improvements in or relating to fasteners
IPC: E05B13/00
Filed: 1959-12-16
Abstract: 939,663. Cockspur fastenings. T. L. GILSON. Dec. 14, 1960 [Dec. 16, 1959], No. 42748/59. Class 44. A window fastener of the cockspur type is provided with means for reversing the fastener relative to its support, and for locking the fastener in its closed position in both its normal and reversed conditions. The fastener comprises a base 11 for fixing to the moving part of the window, pivotally supporting at 24 a tongue 22 comprising a pillar 23 to which a handle 25 is pivoted, so that by means of the handle the tongue may be brought into and out of engagement with a holding member secured to a fixed part of the window. Furthermore, the handle is pivotable about an axis parallel to the tongue so that by pivoting the handle through 180 degrees relative to the tongue, and then pivoting the tongue through 180 degrees about the pivot 24, the fastener may. be adjusted to cause the tongue to project from either side of the handle. In order to lock the fastener in either of its engaged conditions, a threaded pin 28 is provided, reversible on the handle 25 and passing through a hole therein to engage a screw-threaded socket 18 mounted on an insert 15 which is slidable in a slot 16 in the base 11. The pin 28 may be constructed so as to be operable by means of an allen key.
Patent GB-1424909-A (GB)
Title: Apex seal and rotor housing arrangement in rotary piston internal combustion engine
IPC: F01C19/00
Filed: 1973-09-11
Abstract: 1424909 Rotary engines NIPPON PISTON RING CO Ltd 11 Sept 1973 [12 Sept 1972] 42756/73 Heading F1F A rotary piston internal combustion engine includes an apex seal and a rotor housing, the apex seal being of ferrous or non-ferrous metal provided with a sprayed-on layer of an oxide of iron containing oxygen in the range from 15À0 to 30À05 weight per cent, the layer being at least 0À1 mm thick and preferably not more than 5À0mm, and the rotor housing being provided at least where it contacts the apex seal with a cast iron member with graphite precipitated on the surface thereof in the range of from 1 to 15 per cent of the surface area which contacts the apex seal. Thus the rotor housing may be wholly of cast iron of in the form of an aluminium alloy casting with a cast iron insert.
Patent GB-1022649-A (GB)
Title: A phenthiazine derivative and a process for the preparation thereof
Inventor: BOISSIER JACQUES ROBERT
Filed: 1962-11-13
Abstract: The invention comprises the title compound and its preparation by reacting an N-alkanoyl phenothiazine (the alkanoyl derivative of which contains 1-4 carbon atoms) in an organic solvent with a g -chlorobutyryl halide in the presence of aluminium chloride to form N - alkanoyl - 2 - (g  - chlorobutyryl) - phenothiazine, reacting this with either a strong base in organic solution to form 2-phenothiazinyl cyclopropyl ketone or with a strong acid to form 2-(g -chlorobutyryl) phenothiazine and then with an organic solution of a strong base to form 2-phenothiazinyl cyclopropyl ketone, and then reacting the ketone with hydrazine in the presence of an alcohol and in alkaline solution.
Patent GB-1361738-A (GB)
Title: Process for zinc 2-benzamidothiophenate
IPC: C08K5/36
Filed: 1972-09-15
Abstract: 1361738 Zinc 2-benzamidothiophenate AMERICAN CYANAMID CO 15 Sept 1972 [18 Nov 1971] 42938/72 Heading C2C Zinc 2-benzamidothiophenate is prepared by (a) reacting in an inert atmosphere 2-aminothiophenol dissolved in an inert, water-immiscible organic solvent with a stoichiometric amount of benzoyl chloride, said organic solvent being in intimate contact with an aqueous solution of an acid acceptor present in an amount of up to 20% in excess of that required to neutralize the hydrochloric acid resulting from the reaction; (b) separating the organic phase from the aqueous phase and heating the organic phase to from 50 to 60 C. for a time sufficient to convert minor amounts of N,S-dibenzoylaminothiophenol to N-benzamidothiophenol; (c) cooling the organic phase and adding to it sufficient sodium hydroxide solution to convert the N-benzamidothiophenol to its sodium salt; (d) reacting to resulting aqueous solution of sodium 2-benzamidothiophenate at pH 9-10 with a stoichiometric amount of zinc chloride; and (e) recovering zinc 2-benzamidothiophenate by filtration.
Patent GB-1512292-A (GB)
Title: Apparatus and method for setting the tuning of a resonant circuit
IPC: H03D3/26
Filed: 1975-10-22
Abstract: 1512292 Automatic tuning INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 22 Oct 1975 [25 Oct 1974] 43377/75 Heading H3A Apparatus for tuning a resonant circuit 1 to a predetermined frequency comprises means 2, 3 for feeding the resonant circuit with signals having frequencies evenly spaced either side of the predetermined frequency, to produce an output corresponding to each signal, and means 6 for comparing the amplitudes of the two outputs to provide a control signal for adjusting the tuning of the circuit 1. In the arrangement shown in Fig. 2 synchronized switches 8. 9 fed the signal from source 2 to detector 10 or the signal from source 3 to detector 11, the outputs from the detectors being fed to difference amplifier 6. In an alternative embodiment Fig. 1 (not shown) the switches are omitted and the two detectors (4, 5) include filters tuned to pass the respective signal from source 2 or 3.
Patent GB-937321-A (GB)
Title: Improvements in or relating to fluid pressure reducing devices
IPC: F16K17/08
Filed: 1959-12-22
Abstract: 937,321. Valves. REGIE NATIONALE DES USINES RENAULT. Dec. 22, 1959 [Jan. 13, 1959], No. 43508/59. Class 135. A fluid-pressure regulator has a valve closure 6 formed by a member 39 covered with a resilient material, the closure 6 being slidable over a guide 27 and a spring 28 in a chamber 29 being interposed therebetween; the chamber 29 is open, via a bore 30, with a space 31 downstream of the valve seat 7, which space leads to the valve outlet 5 and a cylinder 35 that houses a piston 15 which is urged upwardly by an adjustable spring 19 so that the upper end of a tubular piston-rod 17 engages and unseats the closure 6; the latter has a splined depending portion engaged in the rod 17. Upon admitting compressed air into the inlet 4 it flows past the closure to the outlet 5 as well as entering the chamber 29 and cylinder 35, the resultant force tending to seat the closure against the action of the spring 19, whereby the outlet pressure is controlled since the spring 28 will maintain the closure against the rod 17. Should the outlet pressure exceed a given value the piston 15 is depressed sufficiently far to take the upper end of the rod 17 out of contact with the closure 6, thereby enabling the air in space 31 to escape to atmosphere via the rod 17 and an outlet 37.
Patent GB-1058883-A (GB)
Title: Improvements in or relating to apparatus for periodically operating on webs
IPC: B29C51/26
Filed: 1964-01-13
Abstract: 1,058,883. Seaming non-metallic sheet material; making bags. GLOUCESTER ENGINEERING CO. Inc. Jan. 13, 1964 [Jan. 14, 1963], No. 43547/66. Divided out of 1,058,882. Headings B5D and B5K. [Also in Division B6] In apparatus including a die for periodically operating on a web of material fed through the apparatus, the web-feeding devices include a guide around which the web is looped, and the guide is reciprocated by hydraulic means in time with the operation of the die, so as to cause the part of the web to be operated on to be stationary relative to the die during operation of the die. The die may produce fusion lines in a double-layer web of synthetic plastic material, or burn-through holes, or moulded forms in the web. The apparatus described is included in Specification 1,058,882.
Patent GB-1390579-A (GB)
Title: Aerodynamic window apparatus for a laser system
IPC: G02B5/00
Filed: 1973-09-18
Abstract: 1390579 Lasers AVCO CORP 18 Sept 1973 [22 Sept 1972] 43793/73 Heading H1C A high power laser has an aerodynamic output window 10, Fig. 1, which prevents entry of the atmosphere into a laser chamber 12 containing a circulated gaseous active medium maintained at subatmospheric pressure, the window comprising concentric inner and outer tubes 14, 54 extending into the laser chamber to an adjustable degree determined by a clamping ring 38 and seal 32. Within the chamber the outer tube supports a gate valve 44 operated by a solenoid 46. The inner tube is removably secured within the outer tube by a flange 52 and screws 56, and supports a series of aerodynamic apertured discs 64, 72, 78, 86 by spacer sleeves 70 and 74. Air tending to enter the chamber through the inner tube is drawn off by a vacuum pump 96, Fig. 2, through a port 104 between the apertured discs 64 and 72 which leads to an annular space 102 between the two tubes and an outlet duct 98. Further ports 104 and 106 in discs 72 and 78, respectively, cause a differential gas pressure to be established across the discs which maintains the subatmospheric pressure within the chamber. The disc assembly is cooled by water passed between ducts 122 and 124 through circumferential grooves 108, 110 and 112 in the spacer sleeves. Disc 84 is in the form of a spoked wheel, and may include thermocouple junctions 126 connected to an exterior indicating or control device through a circuit 128.
Patent GB-1267619-A (GB)
Title: Method for joining surfaces of articles
Inventor: LANDI HENRY PATRICK
IPC: B29C65/00
Filed: 1970-09-14
Abstract: 1,267,619. Laminates; seaming. AMERICAN CYANAMID CO. 14 Sept., 1970 [24 Nov., 1969], No. 43858/70. Headings B5K and B5N. [Also in Division H1] Surfaces of articles comprising polytetrafluoroethylene (P.T.F.E.) fibres or particles are bonded by coating at least one surface with finely divided particles of a thermoplastic resin having a melting point below the sintering point of P.T.F.E., pressing the surfaces together and heating the composite to melt the particles. An air cathode may be made by laminating a porous web of P.T.F.E. fibres which contains graphite or catalytic metal particles to a second porous web of P.T.F.E. fibres with an expander metal screen sandwiched between them. The particles may be colloidal polyethylene, polymonochlortrifluoroethylene or a copolymer of hexafluoropropylene and tetrafluoroethylene and these may be applied from a suspension or colloidal solution. Preferably some of the fine particles are incorporated in the web. Other fillers, pigments, resins or mineral fibres may also be incorporated in the web. The bonding process may be used to join P.T.F.E. fabrics in a lapped seam to form garments.
Patent GB-1482040-A (GB)
Title: Electron gun with means for expanding the focussing lens field
IPC: H01J29/50
Filed: 1975-10-24
Abstract: 1482040 Electron guns RCA CORPORATION 24 Oct 1975 [29 Nov 1974] 43884/75 Heading HID  An electron gun having first and second focussing electrodes 24 and 26 spaced along the beam path further includes a plurality of appropriately apertured conductive plates 46 connected to spaced points along a resistor 50 connected between the electrodes 24 and 26, whereby to reproduce the potential distribution of a focussing system of increased aperture, and hence of increased focal length and reduced aberration. The resistor may be a cermet film provided on one of the gun support rods 28. The spacing either of the plates 46 between the electrodes, or of the taps 52 on the resistor, may be non-uniform, in order more accurately to simulate the behaviour of a wide aperture lens. Reference is made to the use of the gun in a three beam colour television tube.
Patent GB-1071911-A (GB)
Title: Apparatus for energising an output matrix by a beam of collimated plane-polarized electromagnetic wave energy
IPC: G02F1/31
Filed: 1963-11-07
Abstract: 1,071,911. Lasers. WESTERN ELECTRIC CO. Inc. Nov. 7, 1963 [Nov. 26, 1962], No. 43948/63. Heading H1C. [Also in Divisions G4 and H4] A plane-polarized light beam from an optical maser 1 is rotated through 90 degrees by a Faraday rotator or between half-wave plates 2, 7 . . . according to the presence or absence of a digital input 31, 32 . . . and the rotated beam is displaced by a discrete step according to the plane of polarization with respect to a birefringent crystal 6, 11 ... Crystals 11, 6 have optic axes in plane YZ and crystals 21, 16 have optic axes in plane XZ, the widths of each set of crystals increasing geometrically towards the maser 1 to provide a 1: 1 correspondence between the input binary signals and the output position of the light beam on matrix 22. The beam is rotated using a Faraday rotator or half-wave plates in which a voltage is applied to grids 4, 5 disposed on both sides of a potassium dihydrogen phosphate crystal with normal optic axis on the Z axis and induced optic axis in the XY plane. The deflected beam may be used to sense or to perforate record cards, or for television display &c.
Patent GB-1105890-A (GB)
Title: Improvements relating to the production of epoxidised oils
Inventor: BEESLEY STANLEY
IPC: C07D303/42
Filed: 1963-11-11
Abstract: Epoxidized oils are prepared in a multistage process by reacting an unsaturated oil with a peracetic acid solution in a first stage, in which the oil is not completely epoxidized and acetic acid is removed, followed by at least one further stage in which the unreacted and epoxidized oil produced is reacted with further quantities of peracetic acid solution to complete the reaction. The acetic acid may be removed by distillation or in a batch process by washing.  Examples describe a continous process for the epoxidation of alkali refined soya bean oil.
Patent GB-1484912-A (GB)
Title: Tampon inserter
IPC: A61F13/20
Filed: 1974-10-14
Abstract: 1484912 Tampon inserter INTERNATIONAL PLATEX INC 14 Oct 1974 [18 Oct 1973] 44476/74 Heading A5R  A tampon inserter 10 comprises a barrel portion 14 with insertion end 28, cylindrical finger grip 16 and plunger 20, the insertion end including a multiplicity of triangular segments 30 which converge towards each other to form a dome and have a thickness less than that of the barrel portion 14 so that they are flexible enough to allow the passage of tampon 12 therethrough. This reduction in thickness between the barrel portion and the segments may be achieved either by injection moulding of thermoplastics or thermosetting plastics, or by use of laminated cardboard omitting some laminate layers at the insertion end. The finger grip portion 16 may be, of lesser equal or greater diameter than the barrel portion 14, of greater thickness to increase strength and have circumferential grooves 18 the plunger 20 being oval to grip the sides thereof by exertion of outward pressure. To use the inserter the tampon is loaded in the front insertion end and the withdrawal string 24 pulled through the plunger, the insertion end is closed using a heated die. The tampon can then be -ejected by depressing the plunger.
Patent GB-1487680-A (GB)
Title: Process for producing synthetic cheese-like foodstuff
IPC: A23C20/00
Filed: 1975-10-29
Abstract: 1487680 Synthetic cheese curd UNIVERSAL FOODS CORP 29 Oct 1975 [20 Nov 1974] 44643/75 Heading A2B Imitation cheese curd is made by reacting a basic calcium compound e.g. Ca(OH) 2  with an aqueous suspension containing 2 to 15% by weight casein, the Ca compound being used in an amount of at least 7.5 x 10<SP>-4</SP> equivalents per gram of casein and at pH 7 or above. and coagulating by means of an enzyme e.g. rennet or a fungal enzyme. To form a synthetic cheese, the curd is mixed with an edible oil. At least 0.028 gms. of calcium hydroxide per gram of casein may be used. 0.8 to 11 parts CaCl 2 , per part Ca(OH) 2  may also be added. The coagulating step may be carried out at pH 5.9-6.9, at 80-105‹F, the acidification being by means of acetic, lactic, citric, sulphuric or phosphoric acid. The curd may be dewatered to 60-70% water before mixing with the oil, which may have a Wiley melting point of 70-115‹F. 0.7-1.7 parts curd may be mixed with each part of oil (drv weight basis) and mixing may be at 140-180‹F for a time sufficient for homogenisation and pasteurisation. The blend may also contain a phosphate emulsifier, acid, salt and flavourings. The oil may be soybean. cotton seed. or coconut oil. or butter or lard.
Patent GB-1148640-A (GB)
Title: Improvements in and relating to copying machines
IPC: G03G15/22
Filed: 1967-08-15
Abstract: 1,148,640. Delivering sheets. RICOH, K.K. 15 Aug., 1967 [29 Aug., 1966], No. 44690/67. Divided out of 1,148,087. Addition to 1,148,087. Heading B6H. [Also in Division G2] A sheet-separating mechanism comprises a disc 4 having peripheral notches 5 and abutments 6, and a two-armed lever 8 pivoted at 7, the mechanism operating as described in Specification 1,148,087. In the present arrangement, the disc is mounted on a rotating shaft 3 by means of a clutch formed by a member 13 urged by a spring 14 into contact with a grooved part of the shaft. Member 13 and spring 14 lie in a radial slot 12 in disc 4, the slot being closed by an adjustment screw 15. By turning screw 15 the frictional force between member 13 and shaft 3 can be varied.
Patent GB-1207364-A (GB)
Title: Method and apparatus for controlling the flow of fuel to and internal combustion engine
IPC: F02D9/00
Filed: 1967-10-03
Abstract: 1,207,364. Spray carburetters. McCULLOCH CORP. Oct. 3, 1967 [Dec.19, 1966], No.44897/67. Heading F1B. Fuel from a pump 24 actuated by crank-case pulsations panes through passage 29 to a control valve 39 controlled by a diaphragm 31 actuated by a control pressure set up by the crank-case pulsations. A check valve 51 permits only the positive pressure pulses from a line 49, connected to the crank-case, to enter through orifice 56 space 34 which is connected to atmosphere through a bleed orifice 57. The steady slate control pressure in space 34 varies with engine speed and throttle position and is smaller than the pumping pressure in space 27. The fuel from chamber 32 flows to main fuel orifice 46 and idling orifices 42, 43, the carburetter air passage 58 being unobstructed. The fuel air mixture flows into the crank-case 9 through a seed valve 8. The fuel entering through pipe 17 flows through a filter 20 and inlet valve 22 to the pump chamber 23 provided with an outlet valve 26.
Patent GB-954868-A (GB)
Title: Process and apparatus for obtaining granular uranium dioxide
IPC: C01G43/025
Filed: 1961-12-15
Abstract: <PICT:0954868/C1/1> Granular uranium dioxide is obtained by applying finely-powdered uranium dioxide to a support and melting the surface layer of the powder in an electric arc, the subsequently solidified layer then being reduced to granules. In one embodiment (Fig. 1) uranium dioxide powder is fed through a tube A to a water-cooled copper plate C, which is slowly rotated so that the powder E passes through an arc between two tungsten electrodes G.  The upper surface of the powder melts so that liquid uranium dioxide lies on a bed of powder.  As the melted material is conveyed forward it solidifies in the form of a thin layer, and is removed from plate C by a stripper H.  The solidified layer is then broken up and ground to granules as required.  The melting process is carried out in an atmosphere of hydrogen. Thorium oxide may be granulated in a similar way.
Patent GB-1192418-A (GB)
Title: An Electric Pulse or Power Supplying Arrangement for Series Connected Thyristors
Inventor: BOKSJO CARL INGVAR
IPC: H02M1/088
Filed: 1967-10-04
Abstract: 1,192,418. Converting. ALLM€NNA SVENSKA ELEKTRISKA A.B. 4 Oct., 1967 [11 Oct., 1966], No. 45190/67. Heading H2F. In a circuit for supplying control pulses or control power to a number of series-connected thyristors 13 . . . 22 the pulses or power are fed to a cable 1 having an insulating covering on which magnetic cores 3 ... 12 are carried, each core having one or more windings arranged to transmit pulses or power to the control circuit of the thyristors, the arrangement being such that the voltage gradient along the cable is determined by the thyristors and their voltage dividers and the voltage of the cores relative to the conductor gradually diminishes towards both ends of the cable. A metal or semiconductor sleeve may be arranged between the cable covering and each core (or between cores) so as to reduce sparking therebetween. The cable may have several conductors insulated from one another and mutually connected in series.
Patent GB-1413174-A (GB)
Title: Pneumatic programmer
IPC: F15B11/00
Filed: 1972-09-29
Abstract: 1413174 Valves LA TELEMECANIQUE ELECTRIQUE 29 Sept 1972 [29 Sept 1971] 45206/72 Heading F2V [Also in Divisions F1 and G4] A fluid switching circuit comprises a number of modules. Each module has, on opposite faces, inlet and exit ports which communicate with the corresponding ports of the adjacent modules and comprises an AND gate and a bistable unit. The gate and bi-stable may be separable sub-modules. Fluid-tight communication between the ports is established by face to face contact and 0-rings. The circuit described is a pneumatic programmer in which, at each step in a cycle, one stage of the circuit provides an output signal S to a machine. When the machine has performed the operation so ordered, the circuit receives a signal R which energizes the next stage, resetting the presently energized stage. In the embodiment shown in Fig. 3 each module comprises submodules 1 and 2. Each AND gate forms part of sub-module 2 which can be mounted on tie rods 4, the inlet and outlet ports communicating when adjacent modules abut. The bottom face of the module has connectors for securing flexible tubes carrying signals to and from the machine. The top face has inlet and outlet ports which communicate with ports in the base of submodule 1, which contains the bi-stable. The sub-module 1 has resilient catches 6 to snapengage in grooves 7 of the sub-module 2. The sub-module 1, Fig. 4, comprises a bistable element in which the presence of a fluid input signal X1 from the AND gate or of a manual input X1 by way of push-button 13 causes fluid P from a power source to pass to an outlet x, the disc 32 being moved to the right. An input X0, which may also be fluid or manual, moves the disc leftwards where it is held by magnetic action and prevents fluid flow from P to x. A visual pressure indicator 11 is provided. The sub-module 2, Fig. 5, comprises AND gate 3 having a double headed free piston 14. Fluid appears at a central output only when fluid prosis applied to both inputs x and R. The circuit may be associated with logic units since, for example, when a particular step of the cycle is reached it may be necessary to cause the machine to perform a number of operations before proceeding to the next step. The logic unit ensures that a signal R stepping the programmer cannot be generated until all these operations have been completed. Similarly if a particular operation is to be performed at more than one step the outputs of the relevant stages must be connected to the machine via an OR circuit.