baber/WOPTO huggingface dataset:
Patent GB-664357-A (GB)
IPC: C10G7/00
Abstract: 664,357. Distilling hydrocarbon oils. WILTON, T.O. Nov. 4, 1948 [April 30,1948], No. 11895/48. Class 32 In the distillation of a hydrocarbon oil wherein the distillation-residues (pitch or bitumen) are passed through a pipe-still and part of the heated residues is used to supply the heat required for the distillation by mixing it with the oil-feed, the mixing- column is divided into a series of superposed chambers through which the oil flows as a single stream, while the hot residues are introduced into the column in parallel streams, one for each chamber. The vapours evolved in the chambers are collected separately, and are then introduced into a common pipe and transferred to a fractionating column. By introducing the residues in this manner, the mixing-column is of a practical diameter even for large outputs. Crude oil is pumped through waste steamheater 2, waste heat coil 3, and heat exchanger 4; and enters the top chamber 7 of the mixing-column at 110‹C. where it is dehydrated and partially stripped of light oils; the vapours being withdrawn through pipe 27. Distillation-residues from chamber 17 are pumped through either or both coils 21, 22 where they are heated to 350 ‹C. and then introduced into chamber 25. The residues are stripped of vaporizable constituents in chamber 25, and a portion of the stripped material is discharged to a pitch bay through pipe 26. The remainder flows down lagged pipe 33 from which it is tapped at four points corresponding to superposed chambers 9, 11, 13 and 15, all of which contain mixing trays. The dehydrated oil flows through pipe 8 from chamber 7 to chamber 9 where it is mixed with the first stream of hot residues so that the temperature of the mixture at the bottom of chamber 9 is 180‹C. The vapours evolved in chamber 9 are condensed in condenser 29 together with the steam and light oils evolved in chamber 7; and water is separated in separator 30. The light oils and the mixture from the bottom of chamber 9 are both introduced into chamber 11 where a further addition of hot residues takes place. The temperature at the bottom of chamber 11 is 220‹C. The mixture then passes successively through chambers 13 and 15 in each of which more hot residue is added so that the final temperature of the mixture, which is collected in chamber 17, is 300 ‹ C. The vapours removed from chambers 25, 11, 13 and 15, are collected in main 39, and are then sent to fractionating column 45 by pipe 44. Any liquid carried into or formed in main 39 is passed to chamber 15. The process may be carried out under reduced pressure. Specifications 307,577, 337,581, [both in Class 32], 424,645 472,541, 536,321, 586,798, 610,017 and 619,230 are referred to.
Patent GB-682995-A (GB)
Abstract: 682,995. Door latch handles. PARKES & SONS, Ltd., J., FRYER, E. C., and ORDIDGE, E. F. June 21, 1951 [July 28, 1950], No. 18864/50. Class 44 In handles for latches in which the spindle comprises two overlapping parts, the handles and their respective spindle parts are formed integrally, and each handle has in its shank 1, Fig. 1, a socket 3 which receives the free end of the spindle part 2 of the other handle, both spindle parts being provided near their free ends with holes or recesses 4 which when in position register with holes in the handles and accommodate securing screws 6 which force the spindle parts outward into clamping engagement with the sockets and with the hole in the follower 7. As shown, the screw 6 may screw into a tapped hole in the handle and have a spigot 8 entering the hole 4. In another form, the screw passes through a clearance hole in the handle and enters a tapped hole in the spindle. Fig. 5 shows a further form in which the screw 6 is threaded in a tapped hole in the handle, and has a reduced head 8 which enters a plain hole in the spindle when turned in unscrewing sense.
Patent GB-750380-A (GB)
Abstract: 750,380. Multiplex systems. SKILLMAN & CO., PTY., Ltd., T. S. April 14, 1954 [April 17, 1953], No. 11079/54. Class 40 (4). In a multi-channel carrier telephone system in which the wanted side-band of a channel overlaps the unwanted side-band of a neighbouring channel and the carrier is transmitted at a level high enough for demodulation without an auxiliary carrier supply, a demodulator arrangement for one of the channels comprises a bandpass filter, a rectifying demodulator terminated for voice-frequencies by an impedance substantially equal to the purely resistive impedance value giving the maximum ratio of voicefrequency power output to input side-band power, and a loosely coupled tuned transformer connecting said band-pass filter and said demodulator. The carrier frequency and sideband selected by the band-pass filter BPF are applied over a transformer T and a detectorrectifier network DB to a channel amplifier CA. The transformer T which has a turns ratio suitable for matching the filter to the modulator, is of the air-cored type and may include adjustable screws of powdered magnetic material to secure the correct inductance. This arrangement is said to overcome amplitude ripple arising from mismatch at certain frequencies in the pass-band, and enables the use of a single type of equalizer pad. The tuning of the transformer reduces the attenuation requirements of the band-pass filter. Potentiometer P, which is used as a gain control, serves also to match the impedance of the detector DB, and the insertion of low-pass filter LF between the rectifier bridge and the potentiometer ensures stable performance. The Specification includes references to network theories of Bode, Zobel, and Shea and design details, based on the geometric mean frequency of the band and experimentally obtained coupling coefficients, are also set out. Examples of component values are also given.
Patent GB-2025254-A (GB)
Title: Separating gas mixtures
IPC: B01D53/047
Filed: 1978-07-12
Abstract: A gas mixture to be separated is passed under pressure over a carbon molecular sieve which preferentially adsorbs one or more components of the mixture, gas rich in the unadsorbed component or components of the mixture being withdrawn from the adsorber, the adsorber is regenerated by reducing the pressure to release a gas enriched in the adsorbed component or components, the adsorber is repressurised and the cycle repeated, the pressure during regeneration not being lowered below atmospheric pressure, which reduces energy requirements. The invention is particularly applicable to obtaining nitrogen-enriched or oxygen-enriched fractions from air and does not require the use of special measures for the preliminary removal of CO2 and water.
Patent GB-2002465-A (GB)
Title: Positive clutches
IPC: D03C1/14
Filed: 1978-07-20
Abstract: In a clutch, particularly for controlling a shaft 12 of a loom or a guide bar of a warp knitting machine, comprising an intermittently rotatable shaft 1 having a groove 2 therein, an eccentric 6 rotatable about the shaft 1, and a connecting element 7 providing an output member and having a strap engaging around the eccentric, the eccentric 6 carries a pawl 5 engageable with the groove 2 on the shaft 1 so that when the pawl 5 is engaged, rotation of the shaft 1 produces reciprocation of the connecting element 7. A spring-biased slider 14 forming locking means is also disposed on the eccentric 6 and in one position retains the pawl 5 in its engaged position and in another position locks the eccentric 6 and the connecting element 7 together. <IMAGE>
Patent GB-2002724-A (GB)
Title: Storage arrangement
IPC: A47B63/06
Filed: 1978-08-14
Abstract: A storage arrangement has a plurality of containers 18 supported on at least two endless chains 12 arranged to travel around upper and lower chain wheels 13 between a depositing place 43 and a removal opening which can be closed by a door 42 and having guide rails 19, 24 mounted on lateral supports. To provide optimum use of the vertical height of the space in which the arrangement is to be installed the present invention provides for each of the lateral supports together with the guide rails to be constructed from a plurality of separate self supporting housings comprising a base housing 1, 8 and an upper housing 21, 10 adapted to be connected together. In a preferred arrangement the base housing and upper housing are adapted to be connected together by at least one intermediate housing 11, 9 comprising lateral supports 11 together with guide means 24c. <IMAGE>
Patent GB-2031549-A (GB)
Title: Free-floating planetary transmission
IPC: F16H37/08
Filed: 1978-10-18
Abstract: A free-floating planetary transmission in which the net moment tending to tilt each planetary gear out of its radial plane is substantially zero. The transmission includes in one case contra- rotating dual output shafts (20, 22) multiple input shafts (12, 14) and a set of planetary elements (40), each planetary element comprising a spindle (44) mounting three planetary gears (46, 48, 50) spaced therealong; the spindles (44) are in rolling engagement with constraining rings (70, 72); an annular gear (60) meshes with the planetary gears (46) on each spindle and input gears (62, 64); output gears (64, 66) mesh with the planetary gears (49, 50). In another case, only one output shaft is provided, the intermediate planetary gears in this case meshing with a fixed sun gear. In each case, the gears of each planetary element are spaced axially to obtain the zero tilting moment. <IMAGE>
Patent GB-2011874-A (GB)
Title: Process for the production of sodium percarbonate
IPC: C01B15/10
Filed: 1979-01-08
Abstract: The invention relates to a process for the production of compact, coarse sodium percarbonate which comprises reacting hydrogen peroxide at 10 to 20 DEG C, with an input solution containing sodium carbonate and saturated with sodium percarbonate in the presence of 100 to 200 g of sodium chloride per litre of solution, at least one active oxygen stabiliser and from 0.1 to 1.9 g of sodium hexametaphosphate per litre of solution, the ratio of soda to sodium hexametaphosphate in the input solution being from 65:1 to 500:1, hydrogen peroxide being added to the soda input solution or suspension in a quantity which is substantially equivalent to the sodium carbonate dissolved and/or suspended in the input solution at a temperature maintained at substantially one and the same level throughout the entire precipitation process, subsequently reducing the over-saturation of dissolved sodium percarbonate formed by precipitation of the sodium percarbonate during and for up to 60 minutes after addition of the hydrogen peroxide, and separating off and drying the salt obtained. Optionally the mother liquor accumulating is returned to the working stage for the soda input solution.
Patent GB-2042043-A (GB)
Title: Building construction
IPC: E04B1/24
Filed: 1979-03-05
Abstract: A building construction comprising a self-supporting skeletal frame formed of light gauge metal structural members 62 of a generally channel configuration which are used singly or welded back-to-back to form H assemblies for particular applications such as for intermediate wall studs 40, roof rafters 52,54 and roof purlins 142. Corner wall studs are formed of a pair of welded back-to-back channels with a third channel welded along one pair of side flanges thereof. Wall sections are disposed between each adjacent pair of wall studs within the confines defined by opposed channel openings of each pair, and roof sheeting 180 is applied atop the roof rafters and purlins. Standard ceiling tiles are supported between the roof rafters and purlins on the lower flanges thereof within the confines of the opposed channel openings. <IMAGE>
Patent GB-2013868-A (GB)
Title: Burners
IPC: F23Q13/02
Filed: 1979-03-08
Abstract: An igniter 1 for a burner 4 includes a forward tube 10 which projects through the burner wall 3 and is supplied with a heterogeneous fuel-gas and air mixture which is rich in fuel-gas above the rich limit of flammability of a homogeneous mixture having the same composition, the igniter being arranged to establish a flame at the forward end of the tube, for ignition of fuel in the burner. A rear tube 14, half the diameter of the forward tube 10, projects a short distance within the rear end 11 of the forward tube. Fuel-gas and air are supplied to a mixer 20 connected to the rear tube 14. A spark-plug 30 projecting into the rear tube 14 is energised whenever the level of ultra-violet radiation sensed by detector 25 falls below a predetermined level. <IMAGE>
Patent GB-2024368-A (GB)
Title: Clutch plate assembly
IPC: F16D13/68
Filed: 1979-04-02
Abstract: A clutch plate assembly (1) for motor vehicles comprises a hub (2) having a collar (3, 4) which is rotatable with the hub, an intermediate annular body (7) having a plurality of hollow portions (8) on its surface facing the collar (3, 4), in which hollow portions there are vulcanised blocks (11) of an elastomer material, each one being fixed by a pin (13) to the collar (3,4). The assembly includes stops (10) for limiting relative rotation between the intermediate body (7) and the collar (3,4), and a clutch plate (19) torsionally connected by resilient rings (15) and pins (17) to the intermediate body (7). <IMAGE>
Patent GB-2026686-A (GB)
Title: Clinical Procedure for Measuring Organic Lipid Molecules
IPC: C12Q1/60
Filed: 1979-04-11
Abstract: A method of determining the concentration in body fluid of different density fractions of organic lipid molecules comprising the steps of:     a) applying a sample of the body fluid to be tested to a solid electrophoresis support medium, b) applying a direct current across the electrophoresis support medium for a predetermined period of time sufficient to separate the organic molecules into their separate density fractions, c) applying a developing substrate to the electrophoresed substrate sensitive to the organic lipid molecules, and d) quantitatively determining the concentrations of each of the separated density fractions of the organic lipid molecules from the developed electrophoresed sample.   The quantitative measurement may be made by optical transmission or fluorescence or by radioactive tagging.
Patent GB-2025577-A (GB)
Title: Valve arrangements
IPC: F16K1/30
Filed: 1979-05-29
Abstract: A valve arrangement for controlling the residual pressure of a pressure- medium system e.g. a gas container. The residual-pressure valve includes a body 12 sealingly displaceable in a flow passage 11 and is biased against a first stop 32, e.g. by spring 19. A valve member 15 having a spindle 16 is displaceable in body 12 to open and close a seal 20 which engages a seat 14 in the closed position. Member 15 is biased to closed position by a spring 18. Strength of spring 18 sets residual pressure. A second stop 33 is provided to permit forcible opening of valve by displacement of said valve body 15 to the right whereby stop 33 arrests spindle 16 and thereby opens valve for e.g. filling of an associated gas container. <IMAGE>
Patent GB-2023866-A (GB)
Title: Guest-host liquid crystal display
IPC: G02F1/139
Filed: 1979-06-19
Abstract: In display zones 9 of an electro- optic cell, a mixture 4 of dichroic material in a positive dielectric anisotropy nematic liquid crystal is in contact with a non-homogeneous planar alignment layer 7, 10 on one or both cell plates 1, 2 whereby it appears optically absorbing in the unsuited state. There is thus a contrast with other regions, where both plates carry homotropic alignment layers 8, 11, which is removed by a field E between associated electrodes 5, 6. The latter are absent from any zones 9 intended for permanent display, and other areas of the cell may contain zones which require activation to produce contrast. The layers 7, 10 may be of silicon or tin oxide deposited at normal incidence; if layer 7 is absent, layer 8 is continuous. <IMAGE>
Patent GB-2033280-A (GB)
Title: Apparatus for Facilitating Assembly of Handling Basket Arrangements
IPC: B25B5/02
Filed: 1979-09-24
Abstract: Apparatus for facilitating assembly of basket arrangements for handling mechanical parts, which are pre-assembled by stacking separating, support and gripping members of synthetic material, a series of screw- threaded metal rods (4) which are provided with nuts (5a, b) at their ends passing through and clamping the stack, comprises mounted on a fixed frame (13), a compression chamber (12) of suitable dimensions for receiving the stack of pre-assembled members, the chamber being formed by the space between a stationary jaw (14) and a movable jaw (15) which is actuated by a fluid cylinder (21) for compressing the stack to a predetermined length (L). Nuts (5a) are held on one end of the rods by devices 29, the other nuts (5b) being screwed onto the rods at the jaw (14). The cylinder has an electrical or pneumatic safety circuit which may also control the nut screwing device(s). <IMAGE>
Patent GB-798665-A (GB)
Abstract: 798,665. Cables. ELECTRICITE DE FRANCE. Nov. 5, 1956 [Aug. 10, 1956], No. 33765/56. Class 36. In a cable which includes a central channel for the flow of a liquid under pressure, spaced portions of the channel are longitudinally subdivided. Members of star-shaped cross-section or tubes 1, each containing a number of smaller tubes 2 and tapered inwardly at their ends 3, 3<SP>1</SP> may be inserted in the channel at regular intervals so that the non-partitioned portions are longer than the partitioned portions. The partitioning members may be of metal or insulating material such as rubber or a plastic.'
Patent GB-2043674-A (GB)
Title: Treatment of effluent
IPC: C11D13/30
Filed: 1980-02-13
Abstract: A process for the production of fatty acid soaps from sludge, especially sewage sludge, comprising extracting sludge having a solids content of at least 15% by weight with a non-polar solvent to provide an extract containing fatty matter, and subsequently saponifying the fatty matter in the presence of a dipolar aprotic solvent having a dielectric constant of at least 15 to produce fatty acid soaps.
Patent GB-2069462-A (GB)
Title: Coffin fittings
IPC: A61G17/02
Filed: 1980-02-16
Abstract: A fitting for a coffin, such as a handle or wreath suspension peg, is secured to the coffin via an intermediate component of contrasting surface finish.
Patent GB-2043904-A (GB)
Title: Coilable Rule Casing
IPC: G01B3/10
Filed: 1980-02-19
Abstract: A composite casing 10 for a coilable rule comprises a pair of inner, plastic case members 20, 22 and a thin, outer metal case 50, 52 which receives the plastic case members 20, 22 in a close fitting relationship. A center post 70, 100 is received in central openings 28, 38 provided in the plastic case members 20, 22 to support a measuring tape 12 and coil spring 14 of the rule. One end of the center post 70 has an enlarged head 72 and its other end receives an assembly screw 80 extending through holes in the metal case 52 to engage and hold the metal case 52 in firm assembly with the plastic case members 20, 22. A series of knurls 78 is formed on the center post 70 for engaging one of the plastic case members 20 to hold the post 70 firmly in place. Alternatively, the center post 100, Fig. 3 (not shown) may be formed as an integral part of one of the plastic case members. A plurality of deformable ribs 104, Fig. 5 (not shown) may be provided on the exterior surfaces of the plastic case members 20 to engage the metal case 50, 52 and firmly hold the assembly together. <IMAGE>
Patent GB-2072860-A (GB)
Title: Appliance earth leakage tester
IPC: G01R31/02
Filed: 1980-02-23
Abstract: A portable device for testing earth leakage in electrical appliances comprises a housing having a socket 2 and a complementary plug 1. The socket and plug terminals are connected by lines extending in the housing. The live and neutral lines extend through a core balance current transformer 3 connected to a precision amplifier and rectifier unit 4 which is connected to a display meter 5. An earth probe 11 is connected to the secondary of an auxiliary transformer 6. Earth leakage currents in an appliance connected through the device to a supply are reflected in the current transformer and displayed on the meter. <IMAGE>
Patent GB-2051510-A (GB)
Title: Gain controlled audio amplifier system
IPC: H03G3/32
Filed: 1980-05-30
Abstract: An audio amplifier system e.g. in a vehicle or shop, comprises a variable gain amplifier 4 receiving an input signal, a sound transducer 7 producing a signal representative of the ambient noise level in the area covered by the system, and means for controlling the gain of the amplifier 4 in response to variations in the representative signal. During certain time intervals, filters 1 exclude at least one band of frequencies from the input signal, and further filters 8 exclude all other frequencies from the noise representative signal, whereby the gain of the amplifier is controlled only in dependence upon components of the ambient noise lying within frequency bands not occuring in the input signal. A further amplifier 5 detects periods of low level input signal and allows the amplifier gain to be additionally controlled during such periods following a time delay. Particular circuits for the components 3 to 12 are described in specification GB 1,449,825. <IMAGE>
Patent GB-2056831-A (GB)
Title: Reversible plough
IPC: A01B3/426
Filed: 1980-08-05
Abstract: A reversible plough has a headstock formed from upper and lower parts (7, 3) hingedly connected about a transverse axis (9), the reversing spindle (17) being mounted in the lower headstock part (3) and carrying a crank arm (21) connected by a link (23) to the upper headstock part (7). As the reversing spindle is rotated, relative hinging movement between the two headstock parts causes the reversing spindle to tilt in a vertical plane, the load in said link (23) counterbalancing to a degree the offset centre of gravity of the plough frame and reducing the torque required to reverse the plough frame. <IMAGE>
Patent GB-2083918-A (GB)
Title: Force-measuring cells
IPC: G01L1/22
Filed: 1980-09-15
Abstract: A force or load measuring cell comprises a hermetically sealed chamber. A beam extends across the chamber and is secured at opposed ends to the wall defining the chamber. The beam is in two similar parts 16 symmetrical with respect to a plane normal to the direction of length of the beam and passing through the centre thereof. Two force transmitting members are secured to the centre of the beam and extend in opposite directions away therefrom to extend through the wall of the housing at opposed locations 30. A flexible joint hermetically seals each force transmitting member to the housing at such locations whilst permitting displacement thereof. Stop means in the chamber are operable to limit displacement of the beam centre to a predetermined value. <IMAGE>
Patent GB-2062380-A (GB)
Title: Regenerative braking systems for D.C. motors
IPC: H02P7/28
Filed: 1980-09-29
Abstract: A regenerative braking system for a D.C. motor 1, 2 comprises an electronic switch 5 in series with the motor, means for cyclically turning the switch on and off to control the flow of current from a battery 3 to the motor during motor driving and to control the flow of current from the motor to the battery during regenerative braking, and means 4, 10, 11 for selectively interconnecting the motor and the battery in driving and regenerative braking modes. Means are provided for initiating self- excitation of the motor when the system is in the regenerative braking mode, the self-excitation initiating means comprising at least one capacitor 14 connected such that when the system is in the driving mode the capacitor is charged by the battery and when the system is in the regenerative braking mode the capacitor is discharged through the motor. The capacitor may be connected in series with a resistor (15) and diode (17) across the battery and in a closed circuit with the motor, the electronic switch and a further diode (16), Figure 3 (not shown). <IMAGE>