baber/WOPTO huggingface dataset:
Patent GB-1365330-A (GB)
Title: Valve having sealing means for a pivotally mounted closure member
IPC: F16K1/226
Filed: 1971-12-30
Abstract: 1365330 Valves DE ZURIK CORP 30 Dec 1971 [6 Jan 1971] 60776/71 Heading F2V In a valve, e.g. of the butterfly type, comprising a closure member 22, Figs. 2 and 3, attached to a shaft 24 for pivotal adjustment via a handle (58), Fig. 1 (not shown), the periphery 68 of the closure member contacts a resilient sealing ring 60 when the closure member is positioned to close the flow passage 14. The sealing ring, which is preferably of P.T.F.E., is stretched by the closed closure member, but has shoulders 66 engaged by metal hoops 65 which assist in returning the sealing ring to its unstretched state when the closure member is moved from its closed position. A radial web 64 of the sealing ring is engaged by an annular spring 70 to provide sealing between the ring and valve body 12. The sealing ring is radially movable in groove 62 to provide a self-centring effect. Fluid may flow through the passage 14 in either direction, the fluid flowing from the H.P. side into groove 62 enhancing the sealing action of the ring. The web 64 has radial grooves 79 to allow the H.P. fluid to pass to and from space 78. A removable cap 48 permits access to shaft 24 for removal and replacement. In an alternative embodiment, Figs. 6 and 7 (not shown), the sealing ring has only one shoulder and has a respective metal hoop engaged over the shoulder and over the periphery of the radial web.
Patent GB-1325518-A (GB)
Title: Mortar mix for the production of composition floors or floor  surfaces
IPC: C04B28/02
Filed: 1971-12-31
Abstract: 1325518 Cement compositions ARDEX CHEMIE GmbH 31 Dec 1971 [20 Jan 1971] 60913/71 Heading C1H A floor mix comprises, in parts by weight, sand (up to 7 mm. in size) 500-1000; cement 100-250; chalk or milled limestone 25-95; p.v.Ac dispersion 3-35; Na salt of the sulphite ester of melamine-formaldehyde resin 1-15; polyvinyl alcohol 0À2-10; Na 2 SO 4  0-5; and enough water to make the mix pumpable.
Patent GB-1200040-A (GB)
Title: Flame scanner fault detection system
IPC: F23M11/04
Filed: 1968-12-23
Abstract: 1,200,040. Photo-electric flame detectors. COMBUSTION ENG. Inc. Dec.23, 1968 [Dec.27, 1967], No.60950/68. Heading G1A. A flame detector includes means movable from a non-operative position to block the path of radiation to the flame sensing element, the means returning to its non-operative position by the effect of gravity. The flame is detected by a discharge-tube type of detector receiving ultraviolet radiation through a quartz window 100. Flame failure is simulated periodically or randomly by a timer circuit which opens a valve to supply high-pressure to a port 54 whereby a hollow stainless steel ball 102 is moved to position 104 where it shields the detector tube. The ball 102 falls back when the high-pressure supply is cut off. An AND gate is provided to receive the sensing element signal and a "high-pressure-on" signal and actuate an audible or visible alarm if both signals are positive simultaneously. The mounting of the detector assembly in a burner is substantially as described in Specification 1,037,235.
Patent GB-1237227-A (GB)
Title: Improvements in mixers for liquid pasty, pulverulent or fibrous materials
Inventor: PONCET PIERRE
IPC: B01F7/08
Filed: 1968-12-23
Abstract: 1,237,227. Mixing apparatus. P. PONCET. 23 Dec., 1968 [28 Dec., 1967], No. 61050/68. Heading B1C. Mixing apparatus comprises a housing 7 containing two screws 8, 9, screw 8 being arranged to convey material introduced through hopper 11 to screw 9 at a progressively decreasing flow rate and screw 9 being arranged to convey material to an outlet 12 at a progressively increasing flow rate, and one or more passages 10 between the chambers in which the screws rotate through which material is transferred to be mixed. The screws may be superposed as shown or arranged side-by-side, Figs. 3, 4, 6, 7 (not shown). Mixed material may be re-cycled via aperture 13. The pitch of the screws or the diameters of the screw cores may be varied in order to achieve the variable flow rates. Two units of the apparatus may be arranged in series, Fig. 7 (not shown).
Patent GB-1246299-A (GB)
Title: Improvements in and relating to the manufacture of knitted products
Inventor: BAUERLE ALBERT
IPC: D06C7/02
Filed: 1968-12-23
Abstract: 1,246,299. Finishing fabrics. A. BAUERLE. 23 Dec., 1968 [21 Dec., 1967], No. 61195/68. Heading D1S. A fabric knitted from substantially torsionfree ply yarns of polyester fibres or mixtures of polyester fibres and natural fibre components, is subjected to an expansion in the width direction, e.g. 6-20%, and a compression in the length direction, e.g. 8-25%, preferably performed on a tenter frame, is heat treated to fix and stabilize it in the atmosphere of a gaseous medium, is made up into articles of clothing and is heated in a liquid bath. Preferably, the torsion-free yarn comprises S+Z twisted threads. The heat treatment is preferably effected merely hot air but may be effected by first steaming the fabric and then treating with hot air and is performed at a temperature of 160-210‹C. for a period of 20-60 seconds. If crimped polyester yarns are employed the heat treatment is performed at 170-190‹C for 30-45 seconds and if staple fibre yarns are used this treatment is performed at 180-195‹C for 25-40 seconds. Allowance may be made for boiling shrinkage which takes place in a subsequent boiling treatment by adding an increment of 2-3% in the width and 1.5-2.5% in the length of each article of clothing. The starting yarn may be undyed or only partially and at a stage subsequent to the heat treatment the product is dyed, e.g. after making up the fabric into articles of clothing. The yarns employed may exhibit different dye reactions to a multiple dyeing process, e.g. to produce melange colours or mixed multiple colouring.
Patent GB-2002924-A (GB)
Title: Microwave heating apparatus
IPC: H05B6/80
Filed: 1978-08-11
Abstract: A microwave heating system including an articulated waveguide arm for directing microwave energy into a subject to be heated. The articulated arm is positioned by a dual system comprising a sensor of the location of the surface being heated and a computer activated drive mechanism utilizing stored data of the form of the surface of the subject for providing a predetermined scanning path of microwave energy about the subject.
Patent GB-2002630-A (GB)
Title: Hairdressing device
IPC: A45D4/08
Filed: 1978-08-18
Abstract: A hairdressing device consists of a hot air blower 11 and a set of hair rollers of differing sizes. The hair rollers 13 may be selectively attached to the blower by means of an intermediate piece 12 which constitutes an outlet through which the hot air blows. The outlet or the intermediate piece is so constructed that part 30 of the hot air stream flows via a passage opening into the interior of the particular hair roller attached while the remainder 31 of the hot air stream flows through an outlet channel 101 surrounding the passage opening coaxially and flows along the outer periphery of the hair roller. A greater or lesser proportion of hot air passes into the interior of the roller depending on the size of the roller selected since the larger the roller the more of the outlet channel 101 it blocks off. <IMAGE>
Patent GB-2039153-A (GB)
Title: Multilayer electrical circuit boards
IPC: H05K1/00
Filed: 1979-01-02
Abstract: A multilayer, preferably three- layer, printed circuit board 10 has its central conductive layer 14 apertured with a regular array of apertures 18. Through connections can be made as desired which either do (as Y) or do not (as X) contact the central conductor 14. In an electrical circuit the central layer can be used as the ground plane.   <IMAGE>
Patent GB-2014319-A (GB)
Title: Vehicle speed detection apparatus
IPC: G01P3/488
Filed: 1979-02-19
Abstract: An electrical system and apparatus for the detection of the speed of a moving railway vehicle includes in one embodiment a rotor (1) arranged to be driven from the axle of the vehicle the rotor (1) having alternate magnetic and non-magnetic portions (4, 5) arranged radially and arranged to rotate past a stator (2) separated from the rotor (1) by an air gap (3) and having primary (P1) and secondary (S1) windings wound thereon, the primary winding (P1) being supplied with alternating current at a first frequency considerably in excess of a second frequency derived from the passage of rotor (1) past the stator (2) to produce at the secondary winding (S1) of the stator (2) an output signal having the first frequency amplitude modulated at the second frequency which is proportional to the speed of the vehicle. In a second embodiment, the speed detector described above is used in conjunction with the speed detector described in Patent No. 1463761 <IMAGE>
Patent GB-2044635-A (GB)
Title: A magnetic separator cell and a method of removing contaminants from a carrier liquid by magnetic separation in the cell
IPC: B03C1/034
Filed: 1979-03-14
Abstract: A magnetic separator cell for liquid/liquid separation is a tube (10) enclosing chamber (11) with a flow passage for liquid being treated from an inlet (12) to an outlet (13). Magnetic wires (15) forming a matrix (14) in the chamber extend in the flow direction, so that magnetically responsive contaminant liquid droplets attracted to the wires tend to be drawn downstream along the wires. The contaminant liquid droplets are collected at the downstream ends (20) of the wires and flow out of the chamber through a separate outlet (25). The cell can operate for longer since contaminant liquid does not build up in the matrix. <IMAGE>
Patent GB-2020541-A (GB)
Title: Deflection device for a safety belt
IPC: B60R22/24
Filed: 1979-05-03
Abstract: In a deflection device for a safety belt the belt passes around a deflecting bar (1). To reduce the frictional band brake effect, the effective contact area between bar (1) and belt is reduced by means of the deflecting bar and/or the belt being provided with bearing surface discontinuities. Preferably, the discontinuities are grooves (6) in the surface of the deflecting bar (1). <IMAGE>
Patent GB-2021779-A (GB)
Title: A foetal monitoring apparatus
IPC: A61B5/024
Filed: 1979-05-10
Abstract: A foetal monitoring apparatus which has input means (31,32,41,42) which may receive signals representing foetal heart beat, intra-uterine pressure and blood pressure. A visual indicating means (52) is capable of being set to give either digital or graphical indication of the physical phenomena. The digital or graphical indication is given by a dot display on paper tape (16 Figure 2) and diagnostic data is entered on the tape (16) by manual operation of marker buttons (blocks 51). Heart beat rates are obtained by counting the number of consecutive beats over a time interval nearest to a predetermined time and converting that number into beats per minute. <IMAGE>
Patent GB-2051161-A (GB)
Title: Hair Conditioning Waving and Straightening Compositions
IPC: A61Q5/04
Filed: 1979-05-29
Abstract: A hair conditioner composition for use under highly alkaline conditions is disclosed comprising an aqueous dispersion containing from 1 to 20 weight percent of mineral oil, from 1 to 20 weight percent of a fatty alcohol having 12 to 18 carbon atoms, from 1 to 15 weight percent of a non-ionic emulsifier, and from 0.05 to 20 weight percent of a quaternary polymer having recurring units of the formula   <IMAGE> Compositions and methods for waving or straightening hair employing these hair conditioning compositions and a hair waving or straightening solution containing sufficient sodium hydroxide to provide a pH of 12 to 13 are also disclosed.
Patent GB-2024464-A (GB)
Title: Electric Motor Control Arrangements
IPC: H02P5/68
Filed: 1979-06-07
Abstract: An arrangement for controlling two or more D.C. electric motors M1, M2 has means for generating first signals N1, E1 representative of the speed and/or E.M.F. of one of the motors, means for generating signals N2, E2 representative of the speed and/or E.M.F. of each of the other motors, and means 26 for combining these signals with the first signals to produce for each of the other motors an error signal which depends on the difference between its output torque and that of said one motor, and means for controlling the armature and/or field current e.g. If2 of each said other motor in response to the error signal in the sense which tends to reduce the torque difference. Each motor also has a rectroactive armature current control 12, 13 or 15, 16 with a common reference R for all the control loops. <IMAGE>
Patent GB-2028139-A (GB)
Title: Tracheostomy tube
IPC: A61M16/04
Filed: 1979-08-09
Abstract: A tracheostomy tube has a tubular section (1), one end of which is located in the trachea of a patient. The other end (5) has a screw thread (13) on its outer surface that engages with a co-operating screw thread (21) on the inner surface of a connector portion (2) of the tube. The connector portion (2) is located outside the patient's trachea and carries a mounting flange (40) by means of which the tube is secured to the patient's neck. The flange (40) is rotatable relative to the body (20) of the connector portion (2) and carries an elongate key (47) which extends parallel to the axis of the tubular section (1). The key (47) projects through a keyway (48) formed at the end of the tubular section (1) so as thereby to prevent relative rotation between the flange (40) and the tubular section.
Patent GB-2030839-A (GB)
Title: Collecting piece for a milking machine
IPC: A01J7/00
Filed: 1979-09-05
Abstract: A collecting piece incorporating a pair of relatively movable members which function as a valve to control the supply of a vacuum to all four milking cups of a quarter milking machine while maintaining the milk supplied from each of the milking cups separate from one another. Each of the lines connected to each of the pair of movable members of the connecting piece terminate in an opening which is flush with a sliding surface on each of the two relatively movable members. Thus, rotating one of the members relative to the other will either bring the openings into alignment with each other or cause the openings to remain out of alignment with each other. If desired, a locking mechanism can be provided for locking the two relatively movable members in the two positions thereof.
Patent GB-2036982-A (GB)
Title: Electrical impedance ratios
IPC: G01R19/10
Filed: 1979-10-03
Abstract: The ratio of electrical impedance Z1 to Z2 is derived by applying simultaneously in repetitive sequence the outputs of generators 14 and 16 having amplitude voltages respectively of V1 and V2. V1 is a reference value and V2 is derived from a difference or error signal at error amplifier 6. The circuit is such that at balance   <IMAGE>   To reduce the effect of transients, the circuit can be arranged so that only a central part of the repetitive output of error amplifier 6 is used by detector 8. The circuit is particularly suitable for measuring capacitance ratios. In Fig. 4 (not shown) the sum of a plurality of capacitances is compared with a reference capacitance. In Fig. 5 (not shown) a multiplicity of capacitances are sequentially compared. <IMAGE>
Patent GB-2033698-A (GB)
Title: Equipment for the remote control of an automatic telephone- answering apparatus
IPC: H04M1/652
Filed: 1979-10-17
Abstract: An acoustic code transmitter, designed as a hand-held instrument, is used for the remote operation of cell-answering apparatus by means of sound signals transmitted along the telephone line. A receiver in the call-answering apparatus is provided for recognizing the transmitted sound signals so as to reproduce the messages previously recorded in the call-answering apparatus on a storage recording tape and to pass the information to the caller through the telephone line. The code transmitter contains circuit means for producing sound signals of uniform duration and frequency and for selectively producing differing sequences of these sound signals. A first sequence that can be selected is a code signal for the reproduction or erasure of the information recorded in the call-answering apparatus, a second sequence is a command signal for continuing the reproduction, and a third sequence is a control signal for winding back the storage recording tape. The receiver contains circuit means (18, 20) for recognizing the received sequences of sound signals so as to control the storage recording tape (6) accordingly. <IMAGE>
Patent GB-2063591-A (GB)
Title: Improvements relating to switching systems
IPC: H01H47/00
Filed: 1979-11-13
Abstract: An electrical switching arrangement for domestic mains supply comprises a relay RL1 having contacts for switching the time lead of an a.c. supply. The relay is controlled by an operating switch S1, connected by a ribbon conductor at low voltage, to the secondary winding of a transformer T1. The transformer's primary winding is connected in a relaxation oscillator circuit 1 driven by a diac DT and including a resistor R3. When the operating switch S1 is closed, the inductance of the transformer presented to the relaxation oscillator, is reduced, which increases the oscillatory voltage developed across resistor R3. A diode pump D2 develops on capacitor C4 an average of the oscillatory voltage across R3. Transistor Q1 switches a Schmitt trigger Q2, Q3 when the voltage on C4 rises, and the Schmitt trigger fires a thyristor SCR to operate the relay RL1. <IMAGE>
Patent GB-2036432-A (GB)
Title: Improvements in or Relating to Electrolyte Capacitors
IPC: H01G9/10
Filed: 1979-11-19
Abstract: An electrolytic capacitor is assembled by introducing the cathode anode and electrolyte into a can 1 and by pressing the anode lead 5 into the anode 10. The anode lead is provided with a primary seal including a glass pre-form 6. A secondary seal in the form of a bung 8 and O-ring 7 is also provided to separate the electrolyte from the glass 6 provide an anti- vibration mount while the glass is being melted e.g. by a laser beam. Before the anode lead is pressed into the anode body it is machined to produce a barbed portion 15 which, during pressing, strips off anodically formed oxide to give a good electrical contact. The damage to the anode caused by the pressing operation is subsequently repaired by a prolonged ageing process. <IMAGE>
Patent GB-2042058-A (GB)
Title: Hinge for extendable awnings
IPC: E04F10/06
Filed: 1979-12-10
Abstract: An extendable awning is supported by arms (7) that swing between extended and retracted positions about an axis (10), the arm (7) being carried by a clevis (9). An adjustable abutment (15) limits the downward pivoting of the clevis (9). To prevent the awning being accidentally pivoted upwards when extended, a locking member (16) coupled to the arm (7) cooperates with the abutment (15). <IMAGE>
Patent GB-2040499-A (GB)
Title: Methods of Manufacturing Electrical-circuit Layouts and Items for Use Therein
IPC: G03F1/90
Filed: 1980-01-08
Abstract: A method of laying out the circuit artwork required as a preliminary to photographic and etching processes in the production of printed circuits, is carried out by application to a sheet (20) of overlay (or print-transfer) elements (30, 40, 50, 60), that each carry print of a multiplicity of parallel lines whereby in the one application of each element there is established on the sheet (20) at least one section of the length of a multiplicity of parallel circuit connections. The parallel lines of print on some elements (30, 60, include angled offsets, and some (30), of these have lines that are cranked to provide bridge portions. Print- representations of two rows of circular or other terminal pads extend transversely of the lines on certain (30) of the latter elements, so that these elements carry the print- representations of the terminal pads and individual parallel circuit- connections to them, required for mounting dual in-line integrated circuits on the printed-circuit board, whereby the whole pattern for pack interconnection can be established by the one application of such element to the sheet. The different types of element or symbols are stored on reels to be drawn off one at a time for use and can have an adhesive layer for attaching to the sheet. <IMAGE>
Patent GB-2041128-A (GB)
Title: Wheel speed responsive hydraulically- operated anti-skid braking systems for vehicles
IPC: B60T8/40
Filed: 1980-01-25
Abstract: In the anti-skid braking system disclosed a brake 3 is applied in response to the pressure of a supply of hydraulic fluid passed through a first variable orifice 14 from a pump 5 rotatable with rotation of a wheel to be braked so that the wheel is automatically prevented from locking. The system incorporates a second variable orifice 11 in combination with a pre-loaded spring 12 against which a shuttle 10 provided with the orifice 11 is adapted to be displaced to reduce the pressure of the supply from the pump 5 by a fixed amount to provide a more linear wheel speed analogue. The passage 32 and slot 33 may be omitted when orifice 14 above has a square-law characteristic. <IMAGE>
Patent GB-2046836-A (GB)
Title: Fuel injection nozzle for internal combustion engines
IPC: F02M61/04
Filed: 1980-03-04
Abstract: The fuel injection nozzle has an inwardly opening pintle needle (1) whose pintle (3) has a fuel passage which comprises two portions e.g. formed by bores (8, 7) with the cross section of that portion (8) which is located upstream in the direction of flow being of smaller diameter, in the case of a cylindrical bore, than the diameter of the portion which is arranged downstream. Swarf is thereby prevented from entering the portion downstream and impairing the injection operation. <IMAGE>
Patent GB-2072161-A (GB)
Title: Bisphenol Sulfone Derivatives
IPC: C07C315/02
Filed: 1980-03-14
Abstract: A process for preparing bisphenol sulfone derivatives represented by the general formula (I> <IMAGE> where R stands for hydrogen, a halogen, an alkyl radical, a cycloalkyl radical, an aryl radical, an aralkyl radical, hydroxyl group, an alkoxy radical, allyloxy group, carboxyl group, or a carboalkoxy radical, m is an integer of from 1 to 3, and when m is 2 or more, R may be identical to or different from each other, and adjacent Rs may be combined to form a ring, by oxidizing with hydrogen peroxide a compound represented by the general formula (II> <IMAGE> where R and m have the same meanings as defined for the formula (I), and n is zero or 1, in the presence of an alkali in an amount at least equal to, and preferably more than, the equimolar amount thereof relative to said compound in water and/or an organic solvent not to form any organic peracids under reaction conditions.
Patent GB-2056048-A (GB)
Title: Handling and/or treatment of particulate materials
IPC: F28C3/16
Filed: 1980-07-14
Abstract: Apparatus for handling and/or treating particulate materials such foundry moulding sand requiring cooling comprises an operating vessel with an inlet (4), through which material is charged to flow downwardly in the vessel against an upward flow of pressurised fluid, usually air, there being provided sensing and signalling means (20) to sense the height of the fluidised material in the vessel at a predetermined maximum level (L1) in the vessel and at a predetermined minimum level (L2). These sensing and signalling means control the outlet (24) of cooled sand from the bottom of the vessel, stopping it when the minimum level is sensed and recommencing discharge when the maximum level is reached. <IMAGE>
Patent GB-2087198-A (GB)
Title: Data decoding
IPC: H04L25/49
Filed: 1980-10-28
Abstract: Method and Apparatus for decoding received data signals using Viterbi algorithm decoding in which to reduce the computational time an expansion technique is involved in which the m level signal is expanded into nk expanded vectors, where n is smaller than m, and in which k vectors are chosen from the nk expanded vectors for selection of the level of the received signal.