baber/WOPTO huggingface dataset:
Patent GB-2003705-A (GB)
Title: Spread spectrum data transmission
IPC: H04B1/707
Filed: 1978-08-23
Abstract: Spectrum spreading of a signal a(n) for a data transmission link is realised by providing the signal as a bipolar waveform and modulating it on a fast pseudorandom bipolar binary pulse train. The pseudo-random pulse train is generated at least in part in response to the data signal to provide the spread spectrum signal b(n), Fig. 1. The signal a(n) is recovered in complementary manner, Fig. 2. <IMAGE>
Patent GB-2031244-A (GB)
Title: Locating sources of electro- magnetic radiation
IPC: G01S3/04
Filed: 1978-10-07
Abstract: An aerial system having a known lobe structure is operated so that its main and side lobes scan an area under observation. If a source of radiation is present within that area an output is produced which varies with respect to time in a known way, which depends on the lobe structure and the speed of scanning. In accordance with the invention the output (6) of the aerial system is passed along a delay line (8A, 8B, 8C and 8D) and the contents of the delay line at different positions therealong are inspected by circuitry (12, 14, 16, 18, 19, 21 and 22) which recognises when the said contents are consistent with the scanning of a radiation source by the lobes of the aerial. When a source is detected its position can be ascertained by circuitry (25, 28) knowing the time of detection, the length of the delay and the speed of scanning. <IMAGE>
Patent GB-2012287-A (GB)
Title: Process for producing hydrocarbon resins having improved color and thermal stability
IPC: C08F240/00
Filed: 1978-12-22
Abstract: Hydrocarbon resin having improved color and thermal stability are prepared by treating a petroleum cracking or reforming fraction containing cationically polymerizable hydrocarbons and not more than 0.7% by weight, based on the fraction, of cyclopentadienes and having a boiling range of from 140 DEG C to 280 DEG C, with 0.8 to 3.0 moles, per mole of the cyclopentadienes, of a dienophile compound having a carbon-to-carbon double bond and a carbonyl or cyano group adjacent to the double bond; and then polymerizing the treated petroleum fraction in the presence of a polymerization catalyst.
Patent GB-2013041-A (GB)
Title: Motor
IPC: H02K9/02
Filed: 1979-01-17
Abstract: The cylindrical casing, suitable for a small electric motor of the kind in which the motor windings are carried by the rotor and in which the permanent magnets are mounted internally of the casing, has an end cap (Figs. 1 and 3). The end cap is formed of plastics material and has a through aperture on its central axis. A part spherical bearing seat (1) for rotatable support of the motor shaft is centred on this aperture. At least three ventilation holes (3) extend through the end cap and are disposed at positions about the axis. Brush gear is mounted on the end cap. To best distribute stresses arising from cooling the moulded end cap the ventilation holes are preferably symmetrically disposed about the central axis, even in number, and each defined by four lines, namely two arcs centred on the axis and two radii radiating from the axis. <IMAGE>
Patent GB-2014321-A (GB)
Title: Pneumatic Conveying Plant for Loose Material
IPC: G01G13/10
Filed: 1979-01-18
Abstract: Pneumatic conveying plant for loose material, comprises at least one storage bin (7) for loose material, a respective pneumatic conveying line (8) for feeding material from the or each storage bin to a weighing bin (1) through a line (9) under the action of a suction device (3) which provides for coarse metering of the material. A respective intermediate bin (4) is connected into the or each conveying line to receive material for fine metering to the weighing bin (1) through lines (5) by means of a static overpressure. This overpressure can be produced, for example by a gravity feed or by a mechanical discharge device such as a screw conveyor. <IMAGE>
Patent GB-2016286-A (GB)
Title: Exercising apparatus
IPC: A61H1/02
Filed: 1979-05-02
Abstract: An apparatus for exercising a person's legs comprises pedals 16 carried by a crank members 15 connected to a horizontal shaft 14 supported by a base 10, the shaft being drivingly connected through a gearbox and clutch 13 to a variable speed electric motor 12 whereby with the clutch engaged the motor is operable to turn the pedals at a selected speed and thereby positively move and exercise the user's legs, and with the clutch disengaged the user can exercise the legs by turning the pedals with a cycling action, the apparatus having a device to provide an adjustable resistance to turning of the pedals with the clutch disengaged. The apparatus may have adjustable links for connecting it to a wheelchair. An apparatus for exercising the arms has hand-grips instead of pedals. <IMAGE>
Patent GB-2024187-A (GB)
Title: Process for producing anhydrous sodium carbonate
IPC: C01D7/37
Filed: 1979-06-26
Abstract: Anhydrous sodium carbonate which has high bulk density, high fluidity and high hardness and is non- hygroscopic in air is produced by converting sodium carbonate monohydrate into anhydrous sodium carbonate by a transition in a saturated aqueous solution of sodium carbonate containing from 10 to 22 wt.% of sodium chloride which is heated at a temperature of from 3 to 7 DEG C higher than its transition temperature.
Patent GB-2025030-A (GB)
Title: An Absorber for a Solar Collector
IPC: F24J2/46
Filed: 1979-07-06
Abstract: The invention provides an absorber for a solar collector having a liquid for transporting thermal energy capable of flowing therethrough, the absorber, being formed from a material which transmits at least 50% of solar or global radiation and the liquid for transporting thermal energy containing a pigment capable of absorbing solar energy in dispersed form and/or a dye capable of absorbing solar energy in dissolved form. For example the liquid for transporting thermal energy consists of a mixture of water and/or ethylene glycol, carbon black and a dispersion aid.
Patent GB-2058867-A (GB)
Title: Dispensing Paper Covers for W.C. Seats
IPC: A47K13/22
Filed: 1979-08-22
Abstract: A toilet seat cover in which the cover in the form of a roll 19 or stack of perforated sheets is housed in a cylindrical container and fed therefrom by hand or automatically on the lowering of the seat, the roll being dispensed from a compartment in the cistern or from a cylindrical chamber integral with the seat. The cistern casing has a recess 40 to receive the raised seat 4, and lid 1 which are hinged to the cistern casing rather than to the pan 12. <IMAGE>
Patent GB-2058088-A (GB)
Title: Filler for dental restorative compositions
IPC: A61K6/083
Filed: 1979-09-05
Abstract: A dental restorative composite composition is disclosed comprising a liquid polymerizable resin binder system and a finely divided inert inorganic filler, at least a major portion of the filler being titanium silicate [(SiO2)x(TiO2)y where x=85-90 and y=10-15]. The filler combines a low coefficient of thermal expansion with good strength properties.
Patent GB-2029774-A (GB)
Title: Writing Aid
IPC: B43K7/00
Filed: 1979-09-07
Abstract: The invention relates to a spacing device for use with a ruler or other straightedge to aid handwriting of a neat and tidy appearance. The device comprises a resilient spacing member (4) mounted on or in a writing implement (2) and adapted to maintain under a first degree of manual pressure a predetermined distance between a writing point of the writing implement and an edge of a stationary ruler device (10) positioned on a surface (8) to be written upon, said spacing member being movable under a second, increased, degree of manual pressure to reduce the distance by a predetermined amount. <IMAGE>
Patent GB-2033267-A (GB)
Title: Cutting Tool with Inserted Blades
IPC: B23D77/04
Filed: 1979-10-19
Abstract: A cutting tool e.g. a reamer of circular cross-section for a machine tool includes a body portion 1 and two pairs of cutting blades 2 releasably mounted in diametrically opposed recesses 11 formed in the body. The sides of the recesses constitute locating faces 13, 14 for the cutting blades and are aligned to two diameters of the cutting tool which intersect at right angles. The cutting blades 2 are urged against the locating faces 13, 14 by clamping wedges 4, 5 which are in turn urged against the cutting blades by a screw 3 acting along the diameter bisecting the two recesses. The base locating face of each cutting blade 2 is tapered relatively to the cutting face and is located on an inclined surface formed in the base of each of the recesses such that the movement of the cutting blade along the inclined surface, by an adjustment screw acting on the blade, causes an increase or decrease in the cutting diameter of the tool. <IMAGE>
Patent GB-2062051-A (GB)
Title: Portable barrier
IPC: E01F13/02
Filed: 1979-10-31
Abstract: This invention relates to a barrier. Referring to Figure 1 a barrier is constituted by a barrier portion 11 formed as a lattice of levers connected in the manner of lazy tongs having wheels 23 connected to one end thereof and having its other end connected to a base 13. Rotation of a handle portion 20 in the direction of the arrow A raises pistons 17 disposed in uprights 15 separating the ends of the levers at the other end of the lattice and hence drawing in the barrier. The barrier portion 11 can be extended by reversing the movement of handle portion 20. Means 16 are provided for limiting the extension of the lattice. The barrier is particularly suitable for temporarily closing right of way. <IMAGE>
Patent GB-2067275-A (GB)
Title: Combined refrigeration and heating system
IPC: F25B5/02
Filed: 1979-11-22
Abstract: A refrigeration system 34 supplying cooled liquid through a pipe 24 uses cooling water passing through primary condenser 44 to heat a heating system including radiator 84. Secondary condenser 48 is coupled in series with condenser 44 and is cooled by one or more fans 50 which are controlled by temperature sensor 96 and pressure sensor 102 to provide any additional cooling necessary to ensure complete condensation of refrigerant. Alternatively an air-to-water cooler may be arranged in parallel with the heating system circuit to provide additional cooling as necessary on the return of the heating system. <IMAGE>
Patent GB-2047125-A (GB)
Title: Reciprocating wiper drive
IPC: B29C63/00
Filed: 1980-03-03
Abstract: A wiper drive for a continuous laminating press for coldroom panels in which a counterweight (37) (or weights), having an effective mass equal to sum the mass of the wiper drive and wiper and the frictional drag between the wiper and the panels, is arranged to move in an opposed direction to the wiper but in the same plane to cancel vibrations from the wiper fed to the frame of the press. As shown in Figure 4, the wiper is bolted to beam (18) which is reciprocated by crankshaft (38) via connecting rod (45). The counterweight (37) is also reciprocated by the crankshaft via further connecting rod (46). <IMAGE>
Patent GB-2074652-A (GB)
Title: Rotary positive displacement devices
IPC: F01C1/07
Filed: 1980-04-22
Abstract: In a machine of the 'cat-and- mouse' type which may be an I.C. engine, a steam or air driven motor or a pump, a casing (50) having inlet and outlet ports (51, 52), and in an internal combustion engine an ignition port (53), contains a member (62) comprising a drive piston (64) and part (62a) of the wall of an annulus in which the drive piston (64) and a reactive piston (65) move and a member (63) comprising the reactive piston (65) and part (63a) of the wall of the annulus. The member (62) is drivably attached to a shaft (54), and the reaction member (63) connected to the shaft (54) via means which may comprise epicyclic or hypocyclic gearing or chain drive means associated with crank devices located within the casing member (50) or in a housing (20 in Figure 1, not shown) whereby during rotation of the drive piston (64) with respect to the casing (50) the reactive piston (65) moves alternately towards and away from the drive piston (64) while itself rotating with respect to the casing (50). <IMAGE>
Patent GB-2053114-A (GB)
Title: A sun visor arrangement for motor vehicles
IPC: B60J3/02
Filed: 1980-06-20
Abstract: A sun visor 12 is mounted on the side wall of the driver's cab of a motor vehicle through a pair of bearing blocks 11 on which the visor 12 is mounted. The bearing blocks are slidable in a guide rail 10 mounted on the side wall so as to extend in the longitudinal axis of the vehicle. The guide rail 10 is of C-shaped cross-section so that the bearing blocks extend clear of the guide rail 10. The sun visor is pivotably mounted on the blocks 11 so as to be pivoted about a substantially horizontal axis. <IMAGE>
Patent GB-2056842-A (GB)
Title: Efficient high humidity food processing system with sanitizing improvements
IPC: A23B4/005
Filed: 1980-07-24
Abstract: A food processing system for heating and chilling of food products comprises a continuously running conveyor belt passing through food load and unloading stations and intermediate food heating and cooling chambers, there being spiral conveyor belt paths for carrying food products from the loading station to the heating chamber and from the chilling chamber to the unloading station, the system additionally comprising continuously operable belt cleaning and sanitizing means which are positioned in the belt return path from the unloading station to the loading stations. Also described is a food processing system including means for altering the temperature of food products passed through a food processing unit and also means for sanitizing the unit which pump a detergent cleaning solution through a rotating spray into the unit to reach all interior surfaces of the food processing unit. Also described is a method of sanitizing a food processing system with a conveyor belt having a grating aperture structure by pumping a warm cleaning liquid at a pressure of at least 100 psi (690k Pa) to a spray nozzle set positioned adjacent the conveyor belt so that detergent is released in a jet cleaning action against the moving belt. The specification also describes a process of preparing food products in which the products are quickly heated and cooled between input and output stations to ensure low bacteria count by heating the products solely by steam in an atmosphere of 100% humidity, and cooling the heated products to a temperature of less than 5 DEG C in an atmosphere of chilled moist air of 100% humidity.
Patent GB-2058948-A (GB)
Title: A fuel injection pump for an internal combustion engine
IPC: F02M59/46
Filed: 1980-09-05
Abstract: A fuel injection pump for an internal combustion engine has a constant-pressure relief valve 18 which is constructed so as to take up only a small amount of installation space. A relief valve (21) is disposed between a pressure valve (22) and a pump working chamber (16) and parallel to a pressure line portion (38) and is disposed in a cylindrical portion (35) of the valve housing (19), having fuel flowing therearound, and eccentrically of the longitudinal axis of the valve housing (19) by such an amount (a) that the smallest wall thicknesses (s1 and s2) between the outer surface (36) of the valve housing (19) and the pressure line portion (38) and between the said outer surface and the spring chamber (27) are at least approximately equal. <IMAGE>
Patent GB-2059819-A (GB)
Title: Manufacture of axial compressor rotor
IPC: B23P15/00
Filed: 1980-10-09
Abstract: A light weight multi-stage axial compressor rotor is made from a plurality of rotor rings 32 each having a rim 37 with bondable end surfaces 38, 40 thereon and external load application flanges 34, 36. The bondable end surfaces of adjacent rims are aligned against one another and an axial load applied on the flanges to force the bondable end surfaces into intimate contact. The joint surfaces are heated in an inert atmosphere to produce an oxidation-free diffusion-bonded metal joint between the bondable end surfaces. The external load application flanges are subsequently removed to obtain a minimal rim depth throughout the longitudinal dimension of the rotor so as to reduce its inertia and so improve its acceleration response during engine operation. <IMAGE>
Patent GB-2065474-A (GB)
Title: Bag against parasites
IPC: A01N25/18
Filed: 1980-03-10
Abstract: Bag containing phosphine liberating material. The bag is made of non-woven textile material, pervious to gases, preferably anhydrous, and having a mesh comprised between 5 and 15 microns and preferably 10 to 12 microns.
Patent GB-2067114-A (GB)
Title: Machine for tapping nuts
IPC: B23G9/00
Filed: 1980-11-14
Abstract: A nut tapper has a pusher 20 having an end face 22 for engagement with a flange 23 of a nut blank and a recess 24 for receiving the remainder of the blank to prevent nut rotation with a rotary tap 17. Until the blank is pushed onto the tap 17, the flange is held against the end face by spring loaded holding elements 33 and 34. These slide along diverging side walls of a guide 21, pushed by the pusher until their spacing is greater than the nut flange diameter. The pusher is operated by an offset cam-controlled piston-cylinder unit. <IMAGE>
Patent GB-2066595-A (GB)
Title: Battery charger with transient suppression
IPC: H02J7/02
Filed: 1980-11-28
Abstract: Charging device principally for the charging of stationary accumulators and comprising a mains transformer (L1, K1, L2) connected via a rectifying device (D10-D13) with the accumulator (B) and designed to permit the use of capacitive current limitation in the primary circuit of the mains transformer without the risk of series resonance and consequent current surges. The charging device has, according to the invention, in series with the primary winding (I1) of the mains transformer both a current limitation condenser (C1) and a safety circuit (SK) which for the purpose of preventing current surges is transferable between a high ohmic and a low ohmic circuit condition, in which connection the safety circuit for control between the two conditions is connected with a control circuit (ST) connected in series with the secondary winding L2 of the mains transformer. The control circuit is arranged to transfer the safety circuit to the low ohmic condition as soon as a predetermined value of the charging current has been reached. <IMAGE>
Patent GB-2091926-A (GB)
Title: Vehicle signalling device and use thereof
IPC: B60Q1/50
Filed: 1981-01-14
Abstract: A signalling device 1 for the rear parcel shelf (12) of a vehicle comprises a base 2 housing an illuminated sign 4 which projects a signal upwardly from the base 2; and a reflector panel 6 having a one partially reflective side 7 extending above the base 2 at an acute angle  alpha . In use of the device in front of a vehicle rear window (11), with the partially reflective side 7 facing rearwardly, the device projects a signal rearwardly of the vehicle through the rear window whilst simultaneously providing a substantially uninterrupted rear view to a driver of the vehicle through the panel 6 from a second side 8. <IMAGE>
Patent GB-2069708-A (GB)
Title: An eddy-current test device for detecting surface faults on metal workpieces
IPC: G01N27/90
Filed: 1981-02-13
Abstract: The device comprises a high frequency oscillator (11) including a test coil (10) as part of the tuned circuit thereof, a frequency demodulator (14) connected to provide an output signal representative of variations in the test frequency of the oscillator, a band-pass filter (15) arranged to pass as a fault signal only those frequency components of the demodulator output signal indicative of faults in the workpiece being tested, and circuit means (16,17) regulating the test frequency of the oscillator automatically to reduce variations thereof caused by changes in the distance between the test coil and the workpiece. Amplifier 19 has its amplification factor varied in accordance with the test coil workpiece distance. <IMAGE>
Patent GB-2099376-A (GB)
Title: Improvements in or relating to foldable pushchairs
IPC: B62B7/06
Filed: 1981-04-09
Abstract: The pushchair includes a backrest (32) arranged to present a curved supporting surface (34a), for the small of the back of the user said curved supporting surface being based on a horizontal axis or axes located rearwardly of the backrest. The back rest may be formed by a rigid panel or, as illustrated in Figure 6, by a resilient panel whose upper edge is free to move over a rigid panel 33. There may be provision for folding the back rest about two parallel upright-axes. <IMAGE>
Patent GB-2076646-A (GB)
Title: Suitcases
IPC: A45C13/03
Filed: 1981-05-26
Abstract: A suitcase of the travelling wardrobe kind has a firm frame 1 mounted on the wall opposite to that at which is the support for the clothes hangers, the frame having an elongate body part 2 secured to the wall and opposite end parts 3 extending forwardly away from the body part and then directed towards one another, and retaining strap means 4 or a bar being connected to and extending between the end parts in front of the body part. The end parts extend around the ends of the folds of clothes folded over the strap means or bar and help to prevent the clothes from being creased. In a soft-walled suitcase the frame is positioned to give support to, stringers of a zip fastening, and the end parts 3 extend into the corners of the case. A carrying handle is attached through the wall to the frame. <IMAGE>
Patent GB-2100420-A (GB)
Title: Detecting fluid leakages from conduit
IPC: G01M3/04
Filed: 1981-06-10
Abstract: Leakage of fluid from a conduit (10) is detected by a material (25) which is disposed adjacent to the conduit (10) and whose volume, strength or other property undergoes alteration when contacted by leaking fluid and a fibre-optic cable (11) disposed adjacent to said material (25) and comprising a core (21) of a first refractive index and a solid sheath (22) of a second refractive index which surrounds the core (21). Alteration in the said property causes movement or rupture of the fibre-optic cable (11) so as to alter the light transmission thereof, and means (14) responsive to the light transmission indicate whether fluid has escaped from the conduit (10) and in which section escape has occurred. Expansion of rubber material (25) by oil may force the optical fibre cable (11) through holes (24) in a tube 23 or against projections (not shown) on the inside of the tube. Alternatively the oil may swell a rubber member which holds a housing for a U shaped portion of the optical fibre cable thus permitting a spring to pull the cable against a member which breaks it. <IMAGE>
Patent GB-2100888-A (GB)
Title: Frequency sources
Inventor: MATON GREGORY WAINE
IPC: H03L1/04
Filed: 1981-06-12
Abstract: A frequency source uses a temperature controlled crystal 2 in an oscillator circuit. The crystal is held precisely at a required temperature by surrounding it with a thermal radiator 3, e.g. of copper foil, which is heated by a controllable heat source 4, and a temperature sensor (thermistor) 5 is used to monitor deviations from the required temperature. The oscillator circuit and a temperature control circuit of which the heat source 4 and the thermistor 5 form parts, are all mounted in very close proximity to the crystal so as to minimise temperature differences. These two circuits and the crystal are surrounded by a thermally insulating material 15 and enclosed in a relatively large container 9 having temperature controlled walls e.g. of copper. The wall temperature is held at a value which is less than the temperature of the crystal but significantly above the ambient temperature in which the frequency source is to be operated, by PTC thermistors 10-13 coupled to the walls of the container, which in turn is mounted within a larger enclosure 18 with further thermal insulating material 19 between the container and the enclosure. The oscillator and temperature control circuits are on respective ceramic substrates 1, 7 mounted on a base 8. The heat source 4 is a transistor mounted adjacent a portion 6 of the radiator 3 extending between the heat source 4 and crystal 2. <IMAGE>