baber/WOPTO huggingface dataset:
Patent GB-2046293-A (GB)
Title: Detergent composition
IPC: C11D3/10
Filed: 1980-03-03
Abstract: 1. An alkaline detergent composition for fabric washing comprises     (i) from about 10% to about 40% of a synthetic anionic, nonionic, amphoteric or zwitterionic detergent surfactant or a mixture thereof;   (ii) from about 10% to less than about 40% of an alkali metal carbonate; (iii) from about 1% to about 12% of a pyophosphate material selected from ammonium, sodium and potassium pyrophosphates; and (iv) not more than about 5% of other phosphate builder salts, and optionally (v) from 10% to 50% of a peroxygen bleach; all percentages being by weight of the composition. The composition may be in particulate or bar form. k
Patent GB-2072301-A (GB)
Title: Intermittent drive means
IPC: G06K13/20
Filed: 1980-03-20
Abstract: A bi-directional stepping mechanism particularly for tape perforators and readers has a floating pawl member (3) with alternate pawls (4, 5) for forward and reverse stepping of a ratchet wheel (2). The pawl 3 is pivotally mounted at 6 on a lever 7 which is pivoted about the axis of the ratchet wheel 2. The pawl member is oscillatable by a connecting rod (13) driven by an eccentric (14) and pivotably connected to the pawl member at an intermediate position 15. The end of the pawl member opposite the pawls can be restrained from all but pivotal movement by a control rod (22) so that neither pawl is effective. When the control rod is disengaged, e.g. by an electro-magnet (17), one pawl or the other is effective to produce stepping of the ratchet wheel in an appropriate direction depending on the timing of the disengagement of the control rod in relation to the extreme positions of the eccentric. Two alternative methods of pawl selection are disclosed. <IMAGE>
Patent GB-2057173-A (GB)
Title: Anti-theft and anti-burglar portable alarm device
IPC: G08B13/24
Filed: 1980-07-21
Abstract: An anti-theft and anti-burglar portable alarm device includes a housing on the front of which a Doppler effect microwave unit (23) is mounted; a panel carrying a sensitivity control, an on/off switch and a "ready alarm" indicator light; an a.c. back up battery power supply (20, 21); and a mechanical detector (27) of physical movement of the device set to trigger an alarm (26) in the event that the device is removed when in the surveillance position. <IMAGE>
Patent GB-2081222-A (GB)
Title: Fuel delivery device
IPC: F16L25/00
Filed: 1980-08-01
Abstract: A delivery device for a fluid medium (particularly for supplying diesel fuel to a diesel engined locomotive tank), which comprises a coupler (2) for attachment to an inlet of a tank for the fluid medium, a delivery head (1) which is connected to one end of a supply pipe and which is releasably connected to the coupler to define therewith a passage for the fluid medium, and an electrical control system for controlling the operation of a valve and a pump which are connected to the supply pipe. The electrical control system includes a switching device (18) and an actuator device (16) for actuating the switching device from an open to a closed position 1 and from the closed position to the open position, when the delivery head (1) is respectively connected to, and disconnected from, the coupler (2). One of the devices (18) is provided on the coupler (2) and the other device (16) is provided on the delivery head (1) and the devices are arranged externally of the passage so as to avoid any contact with the fluid medium as it passes through the delivery head and the coupler.
Patent GB-2057792-A (GB)
Title: Non-rewirable electric plug
IPC: H01R13/506
Filed: 1980-08-18
Abstract: A non-rewirable plug has a hollow body (12) accommodating pins (40, 42, 44) which are restrained against axial movement relative to the body, the end of each pin within the body having means for permanently connecting a conductor thereto. The plug body is closed firstly by a shield which rests on the plug body and then by a non-removable cover (18) with projections (22) which engage inside the plug body. The plug is intended to be sold already connected to conductors and is safer than conventional plugs which are wired-up by the user. <IMAGE>
Patent GB-2059954-A (GB)
Title: 1-Phenethylimidazole derivatives
IPC: A01N43/50
Filed: 1980-09-08
Abstract: Compounds useful as antifungal and antibacterial agents are provided, and are of the formula:-   <IMAGE>  including the antimicrobial acid addition salts thereof, wherein;  X and Y are independently sulfur or oxygen; m is zero or 1; n is 1, 2 or 3, with the proviso that when n=1, X and Y cannot both be oxygen; R<1> and R<2> are independently hydrogen, halogen or alkyl or, taken together the atoms necessary to complete a naphthalene ring; R<3> is CF3, SCF3, alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, alkylthio, pyrrolidinyl, piperidinyl, piperazinyl, alkanoylpiperazinyl, morpholinyl, alkylamino, dialkylamino, alkanoylamino, amino, nitro, carboxy, halogen, carboalkoxy or an aryl radical selected from the group consisting of phenyl, benzyl, benzoyl, phenylthio, phenylsulfonyl, phenylamino and benzoylamino, said aryl radical being optionally nuclearly substituted by one or more halogen, CF3, alkyl or alkoxy radicals; and R<4>, R<5> and R<6> are independently hydrogen, halogen, CF3, alkyl, alkoxy or phenyl optionally nuclearly substituted by one or more halogen, CF3, alkyl or alkoxy radicals; and wherein with reference to the above, alkyl, alkoxy and alkanoyl radicals contain 1 to 6 carbon atoms, alkenyl and alkynyl radicals contain 2 to 12 carbon atoms, and cycloalkyl radicals contain 5 to 8 carbon atoms. The preparation of the parent alcohols and corresponding esters and salts is described.
Patent GB-2060292-A (GB)
Title: Transmit level control system
IPC: H03G3/20
Filed: 1980-09-26
Abstract: A transmit level control system for a transmitter comprises a variable attenuator and means 20, 22, 23 for controlling the variable attenuator in response to variations in the transmitter output power. The variable attenuator comprises a first switched attenuator 15 and a second variable attenuator 17, the response time of the first attenuator to variations in output power being substantially slower than the response time of the second attenuator. The first attenuator provides coarse adjustment to the overall gain of the system whereas the second attenuator provides fine adjustment and deals with short- duration transient conditions. Attenuator 15 may include resistors switched by relays (Fig. 5) and attenuator 17 may be a variable diode attenuator. In a further embodiment (Fig. 6) the switched attenuator 15 responds to preprogrammed decoders controlling the attenuation in a coarse manner appropriate to the frequency data received from a driven unit. <IMAGE>
Patent GB-2061176-A (GB)
Title: Ceramic insulator and the method for the production thereof
IPC: H01B19/00
Filed: 1980-10-03
Abstract: The method comprises the steps of pressing ceramic batch around a contoured arbor (10) having at least two longitudinally extending fins (12) to form an outer piece (14) having a bore (15) with grooves (16) therein corresponding to the fins (12), removing the arbor (10) from and contouring the piece (14) to a desired external shape, pressing ceramic batch to form an inner piece (21), and contouring the inner piece to fit within the bore (15) of the outer piece (14). The inner piece (21) is then positioned within the bore of the outer piece (14) and both pieces are fixed whereby the contoured surface of the inner piece (21) closes the grooves (16) in the bore of the outer piece to form slots (23) extending longitudinally within the ceramic insulator. The ceramic insulator is useful as a support for an oxygen sensor which can be placed in the exhaust gases from an internal combustion engine. <IMAGE>
Patent GB-2061424-A (GB)
Title: Optimizing fuel consumption of an I.C. engine by control of the engine and of an associated change- speed transmission
IPC: B60W10/08
Filed: 1980-10-23
Abstract: Fuel consumption is optimized by the following steps:   a) determine the actual value of the momentary fuel consumption and determine the traction power available momentarily at the wheels of the motor vehicle, b) compute the fuel consumption values to be expected for all alternatively selectable gear stages of the change-speed transmission, basing on the already determined traction power and simultaneously assuming that the vehicle speed is maintained constant, c) determine the gear stage giving the best fuel consumption by cyclic comparison of the known consumption values specific to each gear stage with each other, d) derive alternative methods from the result obtained such as optical display of the gear to be selected manually or automatic gear change by electromagnetic or electrohydraulic actuators, e) cut in or cut out engine cylinders in order to vary the mean working pressure in the cylinder so that the operating point of the engine is as close as possible to the minimum level of the specific fuel consumption, f) start the same cycle again and repeat in periodically endless sequence. e
Patent GB-2085963-A (GB)
Title: Crankcase compression four stroke engine with piston controlled parts
IPC: F02B33/26
Filed: 1980-10-28
Abstract: In addition to the normal inlet valves (7) inlet ports (22) are uncovered by the pistons towards the end of the induction strokes to admit air or mixture compressed behind the pistons 3a, 3b). The inlet ports (22) are angled in the wall of the cylinders to provide a substantial tangential component of motion to the incoming charge and possibly also a substantial axial component Figs. 3 and 4 (not shown). A rotary valve (13) is provided to feed the compressed mixture from the crank case (1) to the cylinder in which the induction stroke has just been completed. <IMAGE>
Patent GB-2066423-A (GB)
Title: Valve and Method of Controlling Fluid Flow Through Valve
IPC: B60K15/04
Filed: 1980-10-30
Abstract: A valve for use in a fuel tank filler cap. A valve element (19) movable towards and away from a seat (36) is biased against movement from its closed position when in a closed position and is biased against movement from its open position when in the open position. When fitted in filler caps on fuel tank filler necks, the valve closes when fuel surges into the filler neck and also when the vehicle associated with the fuel tank turns over. Biassing of the valve element is carried out magnetically. <IMAGE>
Patent GB-2090360-A (GB)
Title: Eyebolt anchors
IPC: F16B13/08
Filed: 1980-12-30
Abstract: An eyebolt anchor comprises a bolt 1 which carries a resilient sleeve 4, and rigid sleeve 6 and an eye-ring 7 which is threaded on the end 2 of the bolt. The anchor is inserted into a hole 10 in wall 11 and the eye-ring is screwed up against the rigid sleeve to compress and expand the resilient sleeve 4. When the anchor is no longer required the eye-ring is unscrewed to remove the compressive pressure on the resilient sleeve and the anchor can then be withdrawn from the hole. In a modification, a nut may be threaded on the bolt between the eye-ring and rigid sleeve. <IMAGE>
Patent GB-2061425-A (GB)
Title: Multi-gear free wheel assembly for derailleurs for bicycles
IPC: F16D41/24
Filed: 1980-11-06
Abstract: The invention concerns a multi- gear free wheel assembly, in particular for derailleurs for bicycle, comprising a sprocket hub 11 mounted on a wheel hub by means of a unidirectional clutch, characterized by the fact that the toothed wheels 12 on the sprocket are mounted on a bell 10 which can be solidly coupled to said sprocket hub 11 by locking means which are manually connectable and disconnectable without the aid of tools, said bell being held firm by a pressure spring 25. The locking means may comprise teeth 13 and projections 20 forming a bayonet joint. <IMAGE>
Patent GB-2062501-A (GB)
Title: Inking printing plates
IPC: B41F31/02
Filed: 1980-11-11
Abstract: Embossed printing plates are inked in a device which comprises a support plate (1), a backing roller (2) disposed underneath the support plate, the roller periphery extending through an aperture in the support plate to above the upper surface thereof, an ink applicator roller (3) and an ink-dispensing roller (4) in contact therewith, wherein an enclosed chamber (7) is disposed below the support plate, the support plate has suction apertures (8) near the aperture in the support plate, the enclosed chamber being connected to suction so that solvent vapour can be removed therefrom. <IMAGE>
Patent GB-2067221-A (GB)
Title: Sintered Alloys
IPC: C22C33/02
Filed: 1980-11-26
Abstract: 10 to 85 wt.% of bronze or brass powder is mixed with 90 to 15 wt.% of iron powder. The mixture is compacted and then sintered at a temperature of 700 to 1000 DEG C in a reducing or nonoxidizing atmosphere, which may contain zinc vapour. The sintered alloy may contain a solid lubricant or be impregnated with liquid lubricant so that it can be used as a bearing metal. The particles of iron powder are covered by a copper- rich alloy, resulting in enhanced mechanical strength.
Patent GB-2068191-A (GB)
Title: Amplifier circuit
IPC: H03F3/45
Filed: 1981-01-16
Abstract: An electric amplifier circuit comprising: a pair of differential amplifiers (OP1, OP2); a pair of input terminals (A, B) respectively connected to the non-inverting inputs of the two amplifiers; a connection between the output of one amplifier (OP2) and the inverting input of that amplifier; a load (L) connected between the output of the other amplifier (OP1) and the inverting input of that amplifier, and a resistance RF connected between the inverting inputs of the two amplifiers. In operation of the amplifier two input signals (Vin(1) and Vin(2) respectively applied between the input terminals and a common point, which may be referenced to a common power supply (V) for the amplifiers, produce a current in the load dependent on each of the input signals and independent of the load value. <IMAGE>
Patent GB-2092677-A (GB)
Title: Fuel control system for a gas turbine engine
IPC: F02C9/28
Filed: 1981-02-11
Abstract: The system has a main control unit 22 and an overspeed governor 25 which is operative to prevent overspeed of the rotors of the multi- spool engine. The governor comprises a flyweight governor 38 mechanically connected to the high pressure spool of the engine and an electronic governor 44 which applies a variable bias to the mechanical flyweight governor via servo 46, reaction plate 47 and spring 37 in response to the speed of the low pressure spool. Stops 48, 49 limit the influence of the electronic governor. In this way a basically mechanical governor is provided which responds to the speed of the two spools and which is not catastrophically affected by failure of the relatively less reliable electronic components. <IMAGE>
Patent GB-2070268-A (GB)
Title: Laminated photosensitive plate for electrophotography and process for its preparation
IPC: G03G5/06
Filed: 1981-02-12
Abstract: A laminated photosensitive plate for electrophotography comprises a conductive substrate, a layer capable of forming a movable carrier by absorption of light, which is formed on the substrate, and a positive hole-moving layer formed on the movable carrier-generating layer, wherein the movable carrier- generating layer is comprised of a matrix comprising a vinyl pyrrolidone type polymer and an electron- receptive substance and a photo- conductive organic pigment dispersed in the matrix. This photosensitive plate has excellent sensitivity, initial saturation voltage, smoothness and mechanical strength.
Patent GB-2093476-A (GB)
Title: Production of a Calorific Gas Mixture
IPC: C10J3/20
Filed: 1981-02-19
Abstract: A gas producer has a shaft 104 with a grate 118 on which coal or other solid carboniferous fuel is burned. An ash zone 122, combustion zone 124 and reduction zone 126 are established in operation of the producer. In the combustion zone 124 the predominant chemical reaction is the oxidation of carbon to carbon dioxide, whereas in the reduction zone the predominant chemical reactions are the reduction of carbon dioxide and steam by the coal. The necessary air and steam are supplied from below the grate 118. Oxygen or oxygen- enriched air is introduced into tie combustion zone 124 so as to form an endothermic or reduction region bounded by the combustion zone 124 or so as to lower the boundary between the combustion zone 124 and the reduction zone 126 whereby the calorific value of the resulting fuel gas passing upwardly out of the reduction zone 126 is able to be increased. <IMAGE>
Patent GB-2083204-A (GB)
Title: Ventilation equipment
IPC: F24F7/02
Filed: 1981-06-10
Abstract: A natural ventilator has spaced side-walls extending from opposite edges of a rectangular or elongated vent. Between the side-walls extend sets (10) of spaced troughs at different heights and series (30) of baffles. The sets of troughs are staggered so that higher troughs cover spaces between lower troughs and the baffles extend substantially, vertically. Of three sets of troughs, the lower two (10B, 10C) have closed bottoms (11) and the uppermost (10A) are open bottomed (23). The troughs stop vertical fall-through and the baffles stop oblique fall-through of water drops. The lower baffles (30B) extend upwardly from top edges of the lowermost troughs (10C) and the upper baffles (30A) extend down from the bottom-gaps of the uppermost troughs (10A) past upper edges of the intermediate troughs (10B). Only a small number of basic sheet elements are required for construction in unlimited lengths of ventilator. <IMAGE>
Patent GB-811811-A (GB)
IPC: F24F1/0314
Abstract: 811,811. Centrifugal fans. YORK SHIPLEY Ltd. March 5, 1957 [March 7, 1956], No. 7306/57. Class 110 (1). [Also in Groups X and XIII] A centrifugal fan arrangement in a housing for air conditioning equipment (see Group X) for delivering fresh air, and a mixture of fresh and secondary air, respectively over a condenser 51, Fig. 2, and an evaporator 53 in a refrigerating circuit, comprises a variable speed motor 46, which is supported by a bracket 47 beneath a drip pan 17 in the housing, and carries, on its drive shaft 45, two identical, single eye, fan runners 43, 44, the radial dimensions of which are large compared to their axial dimensions. The runners 43, 44 are housed in snail-shell housings 21, 22 which each have an air inlet shroud 48 and outlet openings 24, 23 leading respectively to evaporator and condenser plenum spaces. The speed of the motor 46, which extends partially within the shroud 48 of the shell 21, is controllable by a pivoted plate 57 which varies the size of an air outlet aperture in the evaporator plenum space and has a lug 60, Fig. 6, which engages the actuator of a toggle switch which controls the speed of motor 46.
Patent GB-2100796-A (GB)
Title: Ducted fan gas turbine engine and rear mounting
Inventor: ROBERTSON JOHN MATHIESON
IPC: F02C7/20
Filed: 1981-06-19
Abstract: A ducted fan gas turbine powerplant (10) is supported at the rear end (16) of its gas generator by three links (22, 24 and 30). The links 22 and 24 connect a mounting block (12) with other engine casing at opposite sides of the longitudinal axis of the engine, while the third link connects the block (12) adjacent its joint with one link (22) with the engine casing adjacent to its joint with the other link (24). Separate aerodynamic facings are provided for the single link (22) connected one side of the engine axis and for the twin links (24, 30) connected to the other side of the engine axis, whereby the aerodynamic blockage due to the mounting arrangement is reduced. <IMAGE>
Patent GB-2096614-A (GB)
Title: Synthesis of corticoid 17-esters
IPC: A61P29/00
Filed: 1979-02-15
Abstract: A new route from compounds (I) to compounds (II> <IMAGE> (R = acyl; R<1> and R<2> are each halo, OH or acyloxy; X = H, Cl, F) comprises successively introducing the 17-ester and  DELTA <1,4> functions while the 11-hydroxyl group is protected by trimethylsilylation. A typical product (II) is beclomethasone dipropionate.
Patent GB-2089286-A (GB)
Title: Manufacture of thermoplastic bags
IPC: B31B50/94
Filed: 1981-09-22
Abstract: A machine for producing thermoplastic bags from a web forms web segments (WS), each defining two bags, and stacks these segments on one of a plurality of interconnected and spaced accumulators (88 or 188) indexed at a stacking station. As the segments are stacked they are engaged by means which ensures formation of a registered stack. In one embodiment said means comprises stacking posts (90) on which the segments are registered by means of holes punched in the segments upstream of the stacking station. In an alternative embodiment pneumatically actuated fingers (218), provided at the stacking station, operate to retain the segments on the accumulator (188) during stacking and a clamp (198) holds the stack in register during indexing from the stacking station. When a predetermined number of segments have been stacked on the accumulator, the accumulator moves the stack to a station where the segments are cut, or cut and joined, along a central line of the stack to produce two individual stacks of bags. <IMAGE>
Patent GB-2088694-A (GB)
Title: Pneumatic tobacco transport
IPC: A24C5/39
Filed: 1981-12-01
Abstract: Tobacco is transported pneumatically, e.g. to a cigarette making machine, through a pipe having means for deflecting the tobacco upwards, within a generally horizontal pipe section, to restore the tobacco to an airborne state after it has dropped through gravity to the bottom of the pipe. The deflection of the tobacco may be achieved by one or more inserts in the pipe providing a ramp 4, a plateau 5 and a downwardly tapering trailing surface 6. Alternatively, deflection may be achieved by one or more tubes 8 (Fig 3) which syphon off air from an upper region of the pipe and reintroduce it from below the pipe, into a region of the pipe having a reduced cross-sectional area. <IMAGE>
Patent GB-2090543-A (GB)
Title: A method for bonding a filter membrane to a plastics support
IPC: B01D65/00
Filed: 1980-11-05
Abstract: The method comprises absorbing a predetermined amount of solvent into the pores of the membrane (68), the solvent being a solvent for the plastics support (88) but the membrane, contacting the dry support with the wetted membrane, maintaining contact until the solvent solvates the support and wicks a portion thereof into pores of the membrane, then removing the solvent. Excess solvent may be supplied to the membrane to fill the membrane pores, the excess being removed by spinning the membrane. <IMAGE>
Patent GB-815670-A (GB)
Abstract: 815,670. Photo-conductive devices. SYLVANIA ELECTRIC PRODUCTS Inc. Feb. 7, 1957 [Feb. 21, 1956], No. 4290/57. Class 37. A photo-conductive device comprises a photo-conductive body spaced and insulated from a transparent electrically conductive member which provides an electric field at the surface of the body, to reduce or modify the surface recombination rate and so modify the photo-electric sensitivity. The Figure shows a germanium or silicon body 10 secured through insulating spacers to a metal plate 22 and a glass plate 24 carrying a transparent conductive layer 28. A potential of appropriate sign and intensity is applied by means of battery 30 between the body and plates 22 and 28 to provide an electric field at the surface of the body to reduce surface recombination. One or both of plates 22 and 28 may be used simultaneously.
Patent GB-2113814-A (GB)
Title: Waste heat utilisation
Inventor: STEVENS ROBERT VICTOR
IPC: C03B25/06
Filed: 1982-01-21
Abstract: In or for a furnace particularly of the Lehr type for heat treating articles, such as glassware, in which air is used as a cooling medium, a heat exchanger including a valve 38 so that cooling air may be selectively passed through the heat exchanger to transfer heat from the cooling air to a liquid medium such as water. <IMAGE>