baber/WOPTO huggingface dataset:
Patent GB-1411445-A (GB)
Title: Vent valve and a combination of the vent valve and a fluid pressure operated valve
IPC: F16K24/04
Filed: 1972-12-14
Abstract: 1411445 Valves ITT INDUSTRIES Inc 14 Dec 1972 [20 Dec 1971] 57672/72 Heading F2V A vent valve 64 (Fig. 3) for the exhaust of a three-way valve 10 in an anti-skid air brake system comprises a cylinder 65 with holes 74 overlaid by a rubber or elastic sleeve with holes 76, 77, each hole in the cylinder being associated with two holes in the sleeve. The cylinder, preferably of metal, may be formed with an annular groove on the external surface interconnecting the holes and with longitudinal grooves which interconnect with either the cylinder holes or the groove. The sleeve is held on the cylinder by its own elasticity or by a flange on the cylinder or by a clip 72. The valve 10 is shown in detail in Fig. 2. An electromagnet actuates a pilot valve 42 which allows inlet fluid into the chamber 21, thus depressing the diaphragm 24, closing the connection between inlet 12 and outlet 13 and opening connection between the outlet and an exhaust 15 to which the vent valve is attached. The holes in the cylinder may be interconnected by grooves in the cylinder which may connect to a sleeve hole to allow a constant controlled leak.
Patent GB-1176040-A (GB)
Title: Improvements relating to Hydraulic Jacks.
Inventor: RESUGGAN HAROLD FREDERICK
IPC: B66F3/42
Filed: 1967-12-21
Abstract: 1,176,040. Hydraulic jacks. WEBLEY & SCOTT Ltd. 5 Dec., 1968 [21 Dec., 1967], No. 58213/67. Heading B8J. [Also in Division F1] An hydraulic jack comprises a piston 10 and cylinder 15, a reciprocatory pump assembly 25, an oscillatory driving mechanism including a crank spindle 44 and a crank arm 41 connected to the pump by a rod 40 and a housing 50 defining an hydraulic liquid reservoir and accommodating both the pump and the oscillatory mechanism. In order to facilitate assembly of the crank spindle 44 into the jack, an assembly table 45 is provided on the pump assembly 25 to support the oscillatory mechanism in a position such that bearings 53, 54 in the housing 50 and a square aperture 43 in the crank arm 41 are approximately axially aligned, Fig. 3. End journal 60 of the spindle 44 is tapered to define a " lead-in," the action of inserting the spindle 44 lifting the crank arm 41 off the table 45 as shown in Fig. 2.
Patent GB-1456044-A (GB)
Title: Electrically heated bedcovers and control arrangements therefor
IPC: H05B3/56
Filed: 1973-12-18
Abstract: 1456044 Automatic control of temperature GENERAL ELECTRIC CO 18 Dec 1973 [18 Dec 1972 25 June 1973] 58583/73 Heading G3R An electrically heated bedcover including a heater wire 12, Figs. 1, 2 and a control wire 14 contained in a single cable distributed throughout the bedcover and separated by a layer 13 of N.T.C. sensor material, which is an insulator at normal operating temperatures and which conducts a substantial current at higher temperatures, is connected to a control system 21 which is arranged to limit the maximum temperature of the bedcover, (in addition to controlling the temperature thereof). The normal operating temperature of the bedcover is settable by a knob 53 co-operative with a bi-metallic switch 44 in series with heater wire 12 and the contacts 50, 51 of which move apart when blade 49 is heated by a resistor 52 and by the ambient temperature. These contacts are cycled ON/OFF to maintain the set temperature in a conventional manner. To limit the maximum temperature and prevent overheating of any part of the bedcover, there is provided a relay 43 having identical bi-metallic blades 35, 39 thermally coupled to control heaters 45, 46 respectively. Contacts 38, 42 are open when both blades are at the same temperature and both blades deflect in the same direction (i.e. to the left in Fig. 2) under the influence of heat. The heaters 45, 46 are connected through prongs 31, 32 in series with the control wire 14 across a transformer secondary 63. Heater 46, having a higher resistance than 45, will provide the greater heat whereby contacts 38, 42 will be maintained closed when the bedcover temperature is not excessive. A capacitor 54 provides a phase shift (e.g. 60 degrees) between the heater wire 12 voltage and the control wire 14 voltage so that at all points along the cable there will be a potential difference between 12 and 14. Thus when an abnormal temperature exists in any region of the cover the sensor layer 13 will conduct current through a "tie circuit" from a junction 64 via R61 and R62, heater wire 12, layer 13, control wire 14 back to a junction C. The heater 46 will thereby be effectively shunted so that the contacts 38, 42 will open and interrupt the main heater wire current. In the event of the control circuit developing an open circuit fault, the contacts 38, 42 will open thus de-energizing the heater wire. In an alternative embodiment Fig. 5 (not shown), the limit control circuit is energized via an autotransformer.
Patent GB-1376799-A (GB)
Title: Image display cell
IPC: G02F1/1503
Filed: 1972-12-20
Abstract: 1376799 Electrolytic meter PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 Dec 1972 [23 Dec 1971] 58745/72 Heading G1Q [Also in Divisions G5 and H3-5] In an electrolytic display or voltage indicating cell, in a water medium (electro-chemically inert), the soluble colourless viologen dication is reversibly reduced at an inert display cathode to the insoluble coloured radical cation, where R 1  and R 2  are each a linear or branched alkyl, alkenyl, alkoxycarbonylalkyl or phenylalkyl group, which groups contain up to 10 carbon atoms and may be substituted with halogen or nitrile, or a morpholino-carbonylmethyl group in which the morpholino group may have one or two methyl substituents; X- is a monovalent union; the water solubility of the dication is greater than 10<SP>-2</SP> mole litre <SP>-1</SP>; and the solubility product in water of the radical cation is less than 5 x 10<SP>-5</SP> mole <SP>2</SP> litre <SP>-2</SP>. X<SP>-</SP> may be ClO 4 <SP>-</SP> ; BF 4 <SP>-</SP>; NO 3 <SP>-</SP>; Cl<SP>-</SP>; Br<SP>-</SP>; F<SP>-</SP> ; or C 6 H 5 SO 3 <SP>-</SP>, depending on the sizes of R 1  and R 2 . The redox products are stable until the polarity of the current supplied to the cell is reversed, and the radical cation is such as to adhere to the cathode for enabling the reverse reaction to proceed. As particularly described, the cell has at least one transparent wall and both electrodes are inert, the display electrode being transparent e.g. tin or indium oxide, or reflective, e.g. a metal, and being disposed on the front or back surface of the cell or at an intermediate position. The latter alternative permits bidirectional viewing in that colouration occurs on both surfaces of the electrode. The counterelectrode may be disposed so that colouration produced when erasing at the cathode is not visible. As well as the materials above, it may be formed of carbon. The counter-electrode may be hidden, and the contrast of the cell increased, by dispersing an insoluble material e.g. white TiO 2  or BaSO 4  in the cell liquid or providing a screen of porous or perforated material, if the display electrode is disposed on a transparent wall. The display electrode may be shaped, or screened by a shaped opaque mesh, or divided into a plurality of selectively operable elements e.g. a seven segment "figure of eight". In addition to providing a display, the cell colouration may be used to indicate whether a voltage greater than a threshold (# 0.5V) has been set up across the electrodes e.g. as in an information storage cell. It may happen that the amount of current passed is not sufficient to produce a discernible colouration. In such a case, if a reference electrode is also present, the change in potential of the electrode relative to the solution may be measured, and none of the electrodes of the cell need be visible. The reference electrode may be glass or calomel, or of the same viologen material as produced at the cathode.
Patent GB-1299086-A (GB)
Title: Valve for controlling the rate of operation of a gas-operated heating appliance
IPC: F16K5/10
Filed: 1969-12-02
Abstract: 1299086 Valves GAZ DE FRANCE 2 Dec 1969 [3 Dec 1968] 58888/69 Heading F2V A gas valve has a base 12 with an arcuate groove 19 communicating with an inlet 20 and an opening 22 communicating with an outlet 21, a setting knob 14 rotatable about a central base spigot 18 and provided with an arcuate groove 23, and a P.T.F.E. washer 13 disposed between the base and knob and having a plurality of calibrated orifices 30-38 communicating with the groove 19 and openings 28, 29 communicating with the groove and the outlet opening 22 respectively. Rotation of the knob varies the flow by connecting more or less orifices with the groove 23. The washer is fixed to the base and has a second set of calibrated orifices 30<SP>1</SP> which may be placed in communication with the groove 19 instead of the first set for use with a different gas supply.
Patent GB-1411399-A (GB)
Title: Seat
IPC: B60N2/70
Filed: 1972-12-27
Abstract: 1411399 Spring upholstery NHK SPRING CO Ltd 27 Dec 1972 [3 March 1972 #3] 59618/72 Heading A4M A seat comprises a frame 21 fitted with a spring structure 22 supporting a cushion 23, the spring structure including a plurality of substantially parallel, spaced apart single wire springs 25 each comprising a straight central portion 25c provided at each end with substantially coaxial coil spring portions 25b having integral hooks 25a engaging the frame 21, and includes means for preventing displacement of the springs 25 transversely of their length. As shown the structure 22 supports a foam cushion 23 in which are embedded a wire frame 27 and a sheet of cheesecloth 28, the springs 25 being held in spaced apart relation by being gripped between pairs of tapes 26 adhered together. In another embodiment Fig.8 (not shown) the springs 25 are located in grooves (40) in the underside of the cushion 23.
Patent GB-1382271-A (GB)
Title: Welding methods and guns
IPC: B23K15/00
Filed: 1971-12-22
Abstract: 1382271 Electron beam apparatus COMMISSARIAT A L'ENERGIE ATOMIQUE 22 Dec 1971 59850/71 Heading H1D A method of electron beam welding includes generating a beam with a gun having one or more focusing and deflecting system(s) downstream of the cross-over point and causing the longitudinal geometrical or intensity axis of the beam to be inclined to the system axis and intersect same at the cross-over point while keeping the crossover point coincident with the axis so that the beam is of elongate cross-section in the welding direction. Fig. 2 includes transversely movable and/or rotatable cathode 8-Wehnelt cylinder 9 assembly, anode 16 and cooled diaphragm 17 with 3 mm. orifices, cooling water inlet and outlet 67, 68, valve 18 with spherical dome and mirrors 19 dividing the space, optical sighting device or TV camera 20, focusing lens 21 with two reversed windings and deflection coils 22. Flange 23 gives access, sliding seats 14 enable orthogonal transverse movement, and curved seat 15 provides rotatable movement. The means enabling the respective movements need not both be mounted on the device and only one or two transverse or only a rotary slide may be provided. Fig. 3 (not shown), includes insulator (29), Cu frame (28) supporting cathode (8) and Wehnelt cylinder (9). Fig. 4 (not shown) includes cathode Ta support (31), attachment part (32), and the cathode formed of two materials (35), (36) of Ta and W respectively. For a 1400‹ C. cathode, the areas are of LaB 6  and a sintered compound (W, Th, Zr) respectively.
Patent GB-1275420-A (GB)
Title: Ac non-consumable electrode arc welding apparatus
IPC: B23K9/067
Filed: 1969-12-24
Abstract: 1275420 Welding by fusion UNION CARBIDE CORP 24 Dec 1969 [26 Dec 1968] 62940/69 Heading B3R [Also in Division H2] Arc welding apparatus comprising a gasshielded non-consumable electrode E and a workpiece W connected to an A.C. supply 12 is provided with an inductor 12, capacitor 16 and, if desired, a resistor 18, connected in series with the electrode and workpiece in order to ensure re-ignition of the arc each time the welding current passes through zero. Re-ignition of the arc is also assisted by the gas shielding around the arc which tends to remain conductive for a brief period after extinction of the arc. The values of the inductance and capacitance of the elements 14, 16 are discussed in mathematical terms and it is stated that optimum values for these elements are 60 microfarads per ampere of welding current for the capacitance and a certain figure divided by the minimum peak value of the alternating input current for the inductance, the figure being 100 when the shielding gas is argon and at least 125 when the gas is helium. For welding processes where an unbalanced wave is useful a diode and a variable resistor in series may be connected in parallel with the arc.
Patent GB-730243-A (GB)
IPC: C07D213/30
Abstract: 730,243. Diphenytpyridytmethanes. THOMAE GES., DR., K. March 17, 1953 [March 17, 1952; Jan. 12, 1953; Jan. 12, 1953; Jan. 12, 1953], No. 7365/53. Class 2 (3). The invention comprises compounds of the formula. where Pyr is a pyridine residue (which may contain alkyl substituents), Y is hydroxy, alkoxy or acyloxy, R<SP>1</SP> is hydrogen, alkyl, aryl and aralkyl, and R 1 -R 4  are hydrogen, alkyl, aryl, aralkyl, hydroxy, alkoxy or acyloxy. These are made by (1) condensing pyridine aldehydes or ketones with 2 mols. of the appropriate phenol; if Y is alkoxy or acyloxy the OH groups may be etherified or esterified before, during or after the condensation; (2) as in (1) using acetals or bisulphite compounds of the aldehydes or ketones; (3) condensing pyridine aldehydes or ketones with 2 mols. of aromatic amine and replacing the amino groups by hydroxyl via the diazonium salts. The condensation is effected in the presence of a dehydrating agent such as sulphuric, phosphoric or hydrochloric acid, zinc chloride, stannic chloride, a phosphorus halide, aluminium chloride or boron trifluoride, and preferably an inert solvent such as benzene, toluene or xylene. An esterifying agent such as acetic anhydride may be present simultaneously. Condensation with the phenols can be carried out at, below, or slightly above room temperature. The amines in method (3) are condensed at 100-126‹ C. The products are laxatives and disinfectants. In the examples, the following are made by direct condensation: di-(phydroxyphenyl) - (2 - pyridyl) - methane, di - (4 - hydroxy - 2 - methylphenyl) - (2 - pyridyl) - methane, di - (4 - hydroxy - 3 - methylphenyl) - (2 - pyridyl) - methane, di - (4 - hydroxy - 3 - isopropyl - 6 - methylphenyl) - (2 - pyridyl) - methane, di - (4 - hydroxy - 3 - phenylphenyl) - (2 - pyridyl) - methane, di - (4 - hydroxy - 3 - benzylphenyl) - (2 - pyridyl) - methane, di - (p - hydroxyphenyl) - (3 - pyridyl) - methane, 1 : 1 - di - (p - hydroxyphenyl) - 1 - (3 - pyridyl) - ethane, di - (p - methoxyphenyl) - (2 - pyridyl) - methane, di - (p - hydroxyphenyl) - (2 - pyridyl)- phenyl - methane, di - (4 - hydroxy - 3 - methoxyphenyl) - (2 - pyridyl) - methane, di - (p - hydroxyphenyl) - (4 - pyridyl) - methane, 1: 1 - di - (p - hydroxyphenyl) - 1 - (6 - methyl - 3 - pyridyl) - ethane, di - (p - hydroxyphenyl) - (6 - methyl - 2 - pyridyl) - methane, 1: 1 - di - (p - hydroxyphenyl) - 1 - (2 - pyridyl) - ethane, di - (p - aminophenyl) - (2 - pyridyl) - methane (converted to dihydroxy compound), and di-(paminophenyl) - (6 - methyl - 2 - pyridyl) - methane (converted to dihydroxy compound). 'In a further example di-(p-hydroxyphenyl)-(2- pyridyl)-methane is di-acylated with acetic anhydride and sodium acetate. It is stated that m-toluidine and o-anisidine also may be used for method (3).
Patent GB-2025877-A (GB)
Title: Gathering and transporting poultry
IPC: A01K45/00
Filed: 1978-07-19
Abstract: A method and an apparatus for gathering and carrying off the poultry from a poultry house, whereby at least one band 3 of a flexible material, such as a textile fabric, is spread out onto the floor of the poultry house and which band afterwards is reeled on a winch 2 whereby the poultry on the band is carried up to the winch to be received, at the other side of the winch, by a conveyor 6, particularly a belt-conveyor, extending adjacent and substantially parallel to the shaft of the winch, for further transport, such as to a freight-car. <IMAGE>
Patent GB-2003449-A (GB)
Title: Peelable seal
IPC: B65D75/30
Filed: 1978-07-27
Abstract: Containers for storing food, medicaments, blood and the like have a peelable and/or burstable seal formed by sealing an oxidized surface of a polyolefin film to a second material. As described blood bags are produced by heat sealing together polyethylene films which have been oxidised in selected area by corona-discharge to form bags having peelable seals e.g. 76, and non-peelable seals e.g. 74. <IMAGE>
Patent GB-2031761-A (GB)
Title: Rapper assembly for electrostatic precipitators
IPC: B03C3/76
Filed: 1978-10-18
Abstract: A rapper assembly for cleaning the electrodes of electrostatic precipitators, which increases the life of switches used to energize the rapper and will not be damaged if improperly connected, comprises a ferromagnetic plunger 50 movable by a solenoid coil 48 to strike an anvil 18, and two diode rectifiers, one 56 being connected in parallel with the solenoid coil 48 and the other 58 in series with the coil, whereby, on switching off the energizing current, a current induced in the coil will flow around the coil/parallel rectifier loop until dissipated. A non-magnetic ring 52 assists the magnetic field to decay quickly. <IMAGE>
Patent GB-2009515-A (GB)
Title: Method and apparatus for the production of printed circuit boards
IPC: H05K3/42
Filed: 1978-10-27
Abstract: A printed circuit board with metallized through holes is formed by punching or drilling the base board, depositing copper electrolessly on both sides of the board and in the holes to a thickness of about 0.5  mu , increasing the copper thickness by electroplating until a thickness of the order of 25 to 35  mu  is obtained, applying a photoresist foil to each side of the board under the action of pressure and temperature, negatively exposing the photoresist foil with the required conductor patterns and processing the resist so that the foil protects the desired conductor pads and paths and areas of the copper layers which are not required are exposed for etching, and etching to remove the copper not protected by the resist foil.
Patent GB-2011383-A (GB)
Title: Sulfites and bisulfites of amines and their use for inhibiting corrosion
IPC: C23F11/14
Filed: 1978-11-16
Abstract: Sulfites or bisulfites of ether amines containing hydrophobic groups are derived from amines of the formula:   <IMAGE> wherein R is an organic hydrophobic group, a is an integer, m, n, n', p and q are O or integers, X<1>, X<2>, X<3> and X<4> are hydrogen atoms, C1-4 alkyl groups or (R'O)yH groups, y being an integer, and R' is an ethylene, propylene or isopropylene group. The sulfites or bisulfites are reaction products of SO2 or H2SO3 with ether amines. The reaction can be carried out in water, alcohols or mixtures of these at room temperature or elevated temperature. The products are useful as corrosion inhibitors in liquid systems. They have both corrosion inhibiting properties and oxygen scavenging properties and further have a substantial bactericidal effect.
Patent GB-2009426-A (GB)
Title: >Testing timing of internal combustion engines
IPC: F02P17/00
Filed: 1978-11-24
Abstract: An electronic dynamic timing system enables a spark ignition internal combustion engine's ignition timing to be checked over a range of engine speeds and ignition timings whereby the problem of checking the ignition timing of a series of engines running at differing speeds is simplified. To provide a speed independent timing indication, a pulse train indicative of engine speed is filtered and this signal is processed according to information regarding the ignition system of the vehicle under test to provide a voltage representing the time period corresponding to the desired ignition timing at that existing engine speed. This is compared to the actual timing to produce high, low or correct timing indications on three lights. Provision is also made to enable static timing and other variables to be checked. <IMAGE>
Patent GB-2037159-A (GB)
Title: A flower holder
IPC: A47G7/03
Filed: 1978-12-16
Abstract: A flower holder which can be releasably fixed in a container so that it does not fall over when flowers are fixed to it includes a base of soft metal such as lead having pins projecting from one side thereof and suction pads fixed to the other side. <IMAGE>
Patent GB-2013572-A (GB)
Title: A Screen Printing Machine Having a Large Printing Table
IPC: B41F15/08
Filed: 1979-01-30
Abstract: In a screen printing machine having a large printing table 3, a stencil stretched across said table, and means for moving a squeegee 5 across the stencil and the printing table are arranged to be relatively pivotable. Preferably the stencil frame 1a, 1b pivots about centre 6 so that at least during the early and later stages of squeegee movement, the stencil is brought into contact with material being printed only at the point of engagement of the squeegee 5. This counteracts the problem of a stencil sagging under its weight and the weight of ink thus producing blurred impressions. <IMAGE>
Patent GB-2016943-A (GB)
Title: Filtering material for alcoholic broths
IPC: B01D39/04
Filed: 1979-02-19
Abstract: Filtering material for solid-liquid phase separation comprises     (A) modified olefin resin fibers composed of (a) and (b) below:   (a) fibers composed of a polymer or copolymer selected from the group consisting of polyethylene, copolyethylene of ethylene with up to 20% by weight of C3 and/or C4  alpha -olefin, polypropylene, copolypropylene of propylene with up to 20% by weight of ethylene and/or C4  alpha -olefin and mixtures of at least two of these, and (b) polyvinyl alcohol bonded to said fibers (a) in an amount of up to 5% by weight based on said fibers (a),  and (B) up to 75% by weight, based on said modified olefin resin fibers (A), of a sparingly water-soluble or water- insoluble filter aid (e.g. diatomaceous earth, clay, kaolin) having an interfacial electrokinetic potential (zeta potential) with positive charge, said fibers (a) being flash fibers formed by flashing a solution or emulsion of said polymer or copolymer held at an elevated temperature and pressure in a zone held at a lower pressure. Alcoholic drinks are separated from broths, by first forming a cake layer on a filtering base plate by passing a liquid slurry of mixture A and B through the base plate, and then passing the alcoholic broth through the cake layer. Alternatively the mixture A and B can be made into filtering sheet by a wet process, as used in paper making, followed by optional drying or heating. Decolorizing, deodorizing and density control aid can also be added in amounts of 2 to 50 wt/%.
Patent GB-2025027-A (GB)
Title: Gas Cooker Top
IPC: F24C3/02
Filed: 1979-04-30
Abstract: A gas cooker top to be housed in worktop 3 of a small thickness comprises at least one burner 4 whose body comprises a venturi communicating with a homogenization chamber whose shape is substantially that of a sphere flattened in the horizontal direction and from whose upper wall a pipe extends enabling connection of the burner head 24 with the burner body, each burner 4 being controlled by a tap 5 whose inlet and outlet orifices 20 and 37 are located perpendicularly to its control spindle, which is disposed vertically.   <IMAGE>