baber/WOPTO huggingface dataset:
Patent GB-2055798-A (GB)
Title: 2-Pyrrolidone production
IPC: C07D201/08
Filed: 1979-08-06
Abstract: 2-Pyrrolidone is produced by a two step process which comprises a hydrolysis step (a) in which succinonitrile is contacted with water at a temperature of from 150 to 300 DEG C and a pressure of from 50 to 10,000 psig to thereby hydrolyze the succinonitrile followed by a hydrogenation step (b) in which the hydrolyzed succinonitrile is contacted with hydrogen in the presence of a heterogeneous hydrogenation catalyst and at a temperature of from 200 to 300 DEG C and a pressure of from 100 and 10,000 psig to thereby form 2-pyrrolidone. The catalyst used in hydrogenation step (b) is normally a Group VIII metal preferably supported by an inorganic refractory material, for example ruthenium on a zirconia support. The 2-pyrrolidone obtained by this process can be used to produce poly- pyrrolidone.
Patent GB-2028047-A (GB)
Title: A circuit having short-circuit protection
IPC: H03K17/082
Filed: 1979-08-07
Abstract: A circuit for operating an electrical load (Sp), such as an electromagnetic relay, has the load (Sp) connected in series with a transistor (Tr) and its emitter resistor (RE). The circuit includes a short-circuit protective device which includes a comparator (K), one of whose inputs (-) is responsive to the potential at the transistor collector and the other (+) of which is connected to a fixed portion of the supply voltage. The output of the comparator is coupled to the base of the transistor (Tr) so as to hold the transistor off when the collector voltage is indicative of a short circuit condition at the collector of the transistor. <IMAGE>
Patent GB-2029107-A (GB)
Title: Electro-magnetic relay
IPC: H01H50/12
Filed: 1979-08-16
Abstract: The relay parts (25, 28 and 26,38, for example) to be electrically connected have juxtaposed formations such as pin (e.g. 33) and hole (e.g. 34) formations which form connection points (e.g. 31,51) for soldering or welding after the parts have been mounted, directly or indirectly, on a base plate (10), this method of assembly permitting machine soldering or welding to be used. <IMAGE>
Patent GB-2036842-A (GB)
Title: Apparatus for Fitting and Removing the Fixed Windows of Vehicles
IPC: B65G49/06
Filed: 1979-10-24
Abstract: Apparatus for fitting and removing a fixed window (2) from a vehicle (4) includes an adjustable support (7, 10) carrying a first structure (23). The first structure (23) mounts a second structure (42) movable relative thereto under the action of a pneumatic actuator (32). Arranged on the second structure (42) are a number of suckers (55) which are connected to a vacuum source and are arranged to firmly hold the vehicle window (2). The actual removal or insertion of a window (2) held in the suckers (55) is effected by operation of the actuator (32). <IMAGE>
Patent GB-2062795-A (GB)
Title: Internal combustion engine camshaft
IPC: F01L1/08
Filed: 1979-11-09
Abstract: An internal combustion engine has a camshaft (1) which carries cams (2). Each cam is engaged by a roller to which is attached one end of a rod (4) whose other cam is attached to a rocker arm (5) for opening a valve (7). Each cam has a main valve-actuating portion and a preliminary bulge before the main portion which serves to take up tolerance in the valve-controlling system while the valve (7) is still resting on its seat. <IMAGE>
Patent GB-2069459-A (GB)
Title: Corner clip for a tray
IPC: B65D5/00
Filed: 1980-01-25
Abstract: A clip comprises a triangular platform 1 from the under-surface of which depend external 5, 7 and internal 13, 15 pairs of tray side wall- embracing portions which are spaced to receive a top edge of a corner of a tray. A gripper device 23, including a ramp 25 and step 27, is provided on one or more of the wall-embracing portions for engagement with slits or apertures in, or flaps on, the tray. An overlying tray is located on the platform 1 by upstanding flanges 31, 33. A leg 21 depends from the clip and rests on a base of the tray. <IMAGE>
Patent GB-2046550-A (GB)
Title: LIDAR system
IPC: F41G7/22
Filed: 1980-02-27
Abstract: A doppler LIDAR guidance system for a missile uses a CO2 laser with optical superheterodyne reception achieved by feeding a part of the output signal from laser 13 from beam divider 13b through a modulator 17b to a mixer 17a for recombination with the reflected signal 14a. The transmitted signal carries IFF interrogation information (Fig. 2, not shown) and is modulated and spatially deflected at 18 to allow tracking of the target 12 by a tracking computer 21. The beam 14 initially forms a guide beam for a first flight phase of the missile and may thereafter serve as a target illuminating marker with reflected and modulated radiation being detected by an on-board missile system. A further embodiment (Fig. 1b, not shown) has a second high stability laser forming a local oscillator for the mixer 17a. The transmitted beam thus performs the function of guiding the missile, target illumination and IFF interrogation. <IMAGE>
Patent GB-2047901-A (GB)
Title: Electric Liquid Leakage Sensor
IPC: G01M3/16
Filed: 1980-04-03
Abstract: The specification concerns a leakage sensor for an electronic liquid leak detector apparatus. The sensor comprises two electrodes 20, 28 respectively which are bridgable by leakage liquid, one of the electrodes 20 being an inverted pan or dish shaped member and the other electrode 28 being an extension of the central terminal 27 of a coaxial connector socket 24 secured in the base of the member 20. The extension 28 terminates slightly short of the plane containing the periphery 30 of the open end of the member 20. The member 20 has a substantially greater diameter than the socket 24 and is relatively massive compared to the latter, thus providing stability and strength in use. <IMAGE>
Patent GB-2073910-A (GB)
Title: Controls for fluidised bed burners
IPC: F23C10/26
Filed: 1980-04-11
Abstract: A boiler 10 has a fluidised bed 13, a combustion space 14, an inlet plenum 11 and a steam and water- filled space 16. At low bed temperatures, a start-up control unit 23 is activated to fire a bed pre-heating unit 21 and, through a 3-term controller 28, set dampers 12, 16. At a predetermined bed temperature the unit 23 is switched off and control taken over by a 3-step controller 27. With a low-demand for steam, a reponse limiter, of a speed controller 27 for the fuel feed, is regulated by the controller 27 so that the fuel feed is limited, whatever the bed temperature seems to demand in extra fuel; since it can be in excess of what is truly needed due to the effects of cooling air and the introduction of cold fuel. <IMAGE>
Patent GB-2077798-A (GB)
Title: Gate structure
IPC: E01F9/627
Filed: 1980-06-12
Abstract: A barrier member 12, preferably but not essentially of an elastomeric material, is so mounted on two horizontally spaced vertical posts 11 as to be capable of being swung, about a horizontal axis which is as close to the ground as is feasible, out of its vertical attitude into one or other of two alternative attitudes each of which is such as to permit a vehicle to pass between the posts over the barrier member. When the vehicle has passed beyond the barrier member, spring 14 means act to raise the member to its vertical attitude. The spring means may be tension, compression or torsion springs. The posts and the barrier member preferably have frictionally-engaging coacting devices which will ensure that the member is positively kept in its vertical attitude, said devices being such that the friction developed between the coacting devices is relatively easily overcome. <IMAGE>
Patent GB-2054261-A (GB)
Title: Metal halide high-intensity discharge lamps
IPC: H01J61/44
Filed: 1980-07-09
Abstract: Metal halide lamp with incandescent lamp characteristics provided with an arc tube 12 having a discharge-sustaining filling comprising a predetermined amount of mercury plus a small pressure of inert ionizable gas and predetermined amounts of sodium iodide, tin iodide and thallium iodide. The lamp is provided with an outer envelope 14 carrying on the inner surface thereof a luminescent coating 22 comprising a mixture of predetermined amounts of strontium chloroapatite phosphor activated by divalent europium and yttrium vanadate phosphate phosphor activated by trivalent europium in predetermined proportion. <IMAGE>
Patent GB-2057241-A (GB)
Title: Beating mechanism
IPC: A01D45/24
Filed: 1980-08-26
Abstract: A beating mechanism (3) for the preliminary threshing of pea crops is mounted at the discharge end of conveyor 2, and comprises a beater shaft 4 running at right angles across the width of the conveyor and carrying beating arms 5 staggered in relation to one another in the direction of rotation A, preferably three such arms at 120 DEG . The beating arms are also spaced axially on the beater shaft and are swingably mounted on shafts 7. The direction of rotation is such that the motional vector of the arms as they pass over the conveyor is in the conveying direction thereof. A cover 8 is provided and co-operates with the conveyor to define an intake opening 9 for the beating mechanism. <IMAGE>
Patent GB-2082883-A (GB)
Title: Sowing machine
IPC: A01C7/08
Filed: 1980-09-04
Abstract: Sowing machine for use on unworked ground with one or more cutting shares 1,9 being moved around in circles so that when the sowing machine is moved in the driving direction a width corresponding to the rotational diameter of the shares is sown. The shares are pivot suspended so that they always cut in the intended way irrespective of the ratio of the rotary speed to the towing speed of the sowing machine. By the pivot suspension it will also be easier for the shares to avoid stones and other obstacles in the ground. The weight of the machine is taken on supporting discs 6a. <IMAGE>
Patent GB-2087990-A (GB)
Title: Automatic reversing gearing
IPC: G05G21/00
Filed: 1980-10-20
Abstract: An automatic reversing mechanism for a washing machine has brakes 15, 16 alternately actuated by cams 56, 57 to provide slow speed forward and reverse drive and has a one-way clutch 43 which provides high-speed drive in one direction when the drive motor M is reversed. A switch M5 associated with the drive to the cams 15, 16 ensures that the high-speed drive will only engage when the output pulley L is already rotating in the direction of the drive. <IMAGE>
Patent GB-2064362-A (GB)
Title: Gas filter
IPC: B01D46/38
Filed: 1980-11-28
Abstract: A gas filter comprises a perforate drum 24 which is rotated to maintain a bed of granular filter medium against its periphery by centrifugal force, the gas flowing inwards through the bed and fluidising it. The medium may be continuously circulated from outlet 32 through a vibrating device which removes dust and back to inlet 27. The figure shows a fluidised bed combustor 2 constructed similarly to the filter and rotating about the same vertical axis. Coal is crushed at 16 and fed to the combustor with transporting air, and more air enters by duct 8. The combustion gas is partly cleaned by cyclones 21 and then passes through the filter to a gas turbine. The filter bed material may be inert sand or alumina or chemically active dolomite. <IMAGE>
Patent GB-2094469-A (GB)
Title: A label detecting device
IPC: B07C5/34
Filed: 1981-03-09
Abstract: A device is disclosed for detecting the presence or absence of a label on a container (d). A plurality of infrared sensors (a, b, c) are arranged to direct beams of infra-red radiation at containers (d) passing along a path and arranged to detect reflection of the beams from labels on the containers. The sensors produce a signal which depends on whether or not the beam is being reflected. A container reject device (f, g) is operable to direct containers along one of two paths in dependence on the signal produced by the sensors. <IMAGE>
Patent GB-2087186-A (GB)
Title: Radio direction finder
IPC: G01S3/04
Filed: 1981-06-16
Abstract: In a direction finder, antennas An, Ae, As, Aw are arranged on a circle, their outputs are amplitude-modulated by respective modulators Mn, Me, Ms, Mw, the modulation signals being low- frequency signals having respective phase angles corresponding to the azimuths of straight lines joining the centre of the circle to the respective antennas. The outputs of the modulators are summed, and the resultant signal is demodulated. The arrival direction (6) of the electric waves is determined from the demodulated signal. The system does not require a sensing antenna. <IMAGE>
Patent GB-2101169-A (GB)
Title: Construction panel
Inventor: FISH ANTHONY MICHAEL
IPC: E04C2/284
Filed: 1981-06-18
Abstract: A panel (11), comprises:     a first sheet (13), of asbestos fibres in a matrix of cement, a supporting sheet of rigid material, such as plywood and a filling (17, 18). comprising one or more sheets of a material which has a decay rate on the S.M.M.T. Standard Bar Test of at most 10 dB per second, said filling being sandwiched between said first and second sheets which are secured together, at least one interface in the panel adjacent the or a filling sheet comprising sheets in contact but not adhered together so that sound damping can occur at said interface by interface friction. <IMAGE>
Patent GB-2106779-A (GB)
Title: Self-inflatable bodies
Inventor: STAMBERGER PAUL
IPC: A47C27/08
Filed: 1981-10-02
Abstract: A self-inflatable, air-impervious hollow body (2) for use as a seat cushion, pillow, mattress or the like is provided having top and bottom (4,6) portions of the same relative size and configuration connected in airtight relation along their marginal edges by flexible, foldable air-impervious sidewalls (18), opposed relatively stiff end members (12,14) including at least one longitudinal groove, and preferably a pair of parallel longitudinal grooves, along which creases (18, 20) are formed. The top and bottom edges of the end members (12, 14) are connected to edge portions of the top and bottom portions respectively. When the body is in its normal, collapsed condition the end members (12,14) occupy positions substantially parallel to the plane of the juxtaposed top portion, thus permitting the entire body to be readily folded into a compact, flat form or readily inflated by separating the end members to draw air into the body through an inlet valve (16) provided in the hollow body. Alternatively, the self-inflatable hollow body may be formed of a flexible, air- impervious open ended hollow tube having the end margins thereof connected in airtight relation to the marginal edges of a pair of opposed, relatively stiff end members. <IMAGE>
Patent GB-2111636-A (GB)
Title: >Hydropneumatic shock absorber with gas return valve
Inventor: ECKERSLEY JOHN STANLEY
IPC: F16F9/36
Filed: 1981-11-04
Abstract: A two-tube pressurized shock absorber has, at the upper end through which the piston rod 11 exits, a seal cavity 38 containing a resilient washer 41 which surrounds and grips the piston rod 11. The seal cavity is in communication through a passage 39 with the reservoir and through the piston rod clearance with the working chamber 2. The lower surface 28 of the seal cavity is conical. On a compression stroke, friction between the piston rod and the washer 41 causes the washer to be drawn down tightly against the conical surface to prevent flow between the washer and the conical surface, the distortion of the washer into a conical shape pressing the upper edge of the bore of the washer more tightly against the piston rod (Figure 3); flow from the working chamber to the seal cavity is thus prevented. On a rebound stroke, the piston rod draws at least the central portion of the washer away from the surface (Figure 4); flow can therefore take place from the working chamber to the seal cavity and hence to the reservoir. Any gas which has collected at the top of the working chamber is therefore returned to the reservoir on each rebound stroke, but there is no flow in the opposite direction. <IMAGE>
Patent GB-2093526-A (GB)
Title: Hand held hair dryers
IPC: A45D20/12
Filed: 1978-07-17
Abstract: A hand-held hair dryer or styler is of tubular shape and is not provided with the normal handle grip. An axial-flow fan 42 having a small diameter enables the housing 21, 22 of the dryer or styler to be small enough to be comfortably held in the hand. Sufficient air flow is made available even when appliances are attached to the dryer. A switch knob 23 may be rotated to any one of six positions to control the fan speed and the output of heater coils 33. The housing members 21, 22 are connected by bayonet fasteners and the dryer is grasped in the region of the fan. <IMAGE>
Patent GB-2117277-A (GB)
Title: Drilling fluid gas and solids removal system
Inventor: KENNEDY ALVIN B
IPC: E21B21/06
Filed: 1982-03-30
Abstract: A drilling fluid gas and solids removal system includes a pedestal (15) with a solids collection tub (60) rotatably mounted thereon. A pressure vessel (27, 28, 29) is supported by the pedestal above the solids collection tub. The pressure vessel includes a cylindrical degassing neck (27) and a pump (21) is provided to force drilling fluid into the degassing neck in a tangentially spiralling path about the interior of the neck. A plurality of hydrocyclones (30) are connected to the pressure vessel to receive drilling fluid and discharge solids into the solids collection tub (60). A clean drilling fluid collection tank (35) is mounted about the degassing neck to receive clean drilling fluid from the hydrocyclones. <IMAGE>
Patent GB-2117744-A (GB)
Title: Applying threaded closures to containers
Inventor: JONES WALTER FREDERICK
IPC: B67B3/20
Filed: 1982-04-05
Abstract: In machines where prethreaded caps 2 are fed individually on to successive threaded bottles 5, difficulty is experienced through tilting of the cap relative to the bottle, which leads to jamming when the cap is tightened down. To alleviate this difficulty the caps are given a pre-tightening rotation by a high speed friction drive member 8 which contacts the closure skirt and is adapted to stall when encountering a predetermined low resistance to rotation. Pre-tightening occurs whilst the bottles are beneath holddown plate 4. <IMAGE>
Patent GB-2128588-A (GB)
Title: Collapsible shipping container having reinforced base element
Inventor: KUPERSMIT JULIUS BERNARD
IPC: B65D5/56
Filed: 1982-10-06
Abstract: A collapsible fiberboard shipping container comprises a solid or corrugated fiber base sheet 11 free edges 19 of which extend outwardly of the body of the container to facilitate forklift engagement, vertical walls 40, 42, 44 formed from a single folded sheet and a reinforcing element 12 to resist outwardly directed forces caused by fluid or particulate loads. The element 12 includes a bottom wall secured to the base sheet 11, front and rear walls bearing side flaps 32, 34 and side walls 36 attached to the flaps 32, 34, the front, rear and side walls defining an enclosure for surrounding the lower regions of the vertical walls 40, 42, 44. <IMAGE>
Patent GB-2108458-A (GB)
Title: Grouping device
Inventor: ANDERSSON BERNT
IPC: B65G47/76
Filed: 1982-10-08
Abstract: A device for grouping consumer packs with a non-circular cross-section (1) to form goods units is disposed in or adjacent to a packaging machine embracing a feed conveyor (2), which transports the packages towards a compartmented unit provided with partitions (6) movable across the feed conveyor (2). A grouping unit (13) is journalled so that it can pivot about a vertical axis at that end of the feed conveyor (2) located adjacent to the compartmented unit. The grouping unit is so arranged that a driver engages the compartmented unit which causes it to turn with the unit when the latter transports packs (1) towards a grouping belt. The driver is so controlled that it is disengaged from the compartmented unit when a compartment has been filled, whereupon the grouping unit (13) is turned towards an empty compartment. <IMAGE>
Patent GB-2108625-A (GB)
Title: Coated recoverable sleeves
Inventor: VAN DER LINDEN ROGER DESIDERIU
IPC: F16L59/16
Filed: 1982-10-27
Abstract: A recoverable polymeric material is coated with discrete regions of a sealant, such as a mastic, and of a heat-activatable adhesive, such as a hot-melt adhesive. The coated material forms a sleeve which may be of tubular or wrap-around configuration. The sleeve may be used to cover weld joints in polyethylene coated steel pipes. The sealant ensures a flexible water-proof seal around the weld and the adhesive provides a second seal and prevents any long range movement between the sleeve and the pipe.
Patent GB-2129682-A (GB)
Title: Shaving kit
Inventor: DAVEY BRIAN
IPC: A45D27/22
Filed: 1982-11-05
Abstract: A shaving kit comprises a shaving brush 11, a razor 12, shaving soap 13 and a mirror 14. The components of the kit are accommodated in a housing 15 when not in use. The razor 12 is stored in a recess 17 in the base of the shaving brush. A first part 24 of the housing serves also as a beaker or shaving mug. <IMAGE>
Patent GB-2113367-A (GB)
Title: Water-heating apparatus
Inventor: MICHELS ALBERTUS PETER JOHANNE
IPC: F24D17/02
Filed: 1983-01-10
Abstract: A water-heating apparatus comprises a thermally insulated water container (1) with a cold-water inlet (6) and a hot-water outlet (7), and a heat pump for heating the water in the container. The heat pump comprises a condenser (10) arranged for heat exchange with the water in the container, an evaporator (14) and a motor-compressor unit (8) for circulating the fluid heat-transporting medium in the heat pump and also compressing it. To inhibit or reduce condensation of the evaporated heat-transporting medium in the motor-compressor unit, and the resulting contamination of the lubricant therein, when this unit, which is controlled by a thermostat, is stopped, the motor-compressor unit is mounted on top of the water container and means are provided whereby heat can be transferred to the unit from the heated water in the container. These means may comprise an opening (20) in the insulation (4) of the container directly beneath the motor-compressor unit, a heat pipe or a metal heat conductor extending through the insulation. <IMAGE>
Patent GB-2116960-A (GB)
Title: Plant-promoting preparations with controlled-start plant-promoting agent release
Inventor: EIBNER ROBERT
IPC: C05G3/70
Filed: 1983-01-24
Abstract: Plant-promoting preparations with controlled-start plant-promoting agent release, especially fertiliser preparations with controlled-start nutrient release, characterised in that the preparations containing the plant-promoting agent enveloped in an enveloping agent selected from water-repellent substances, substances that are sparingly soluble in water and substances capable of swelling in water. The preparations have a delayed-start promoting agent release the time of which can be controlled according to the desired purpose for which they are used.
Patent GB-2121270-A (GB)
Title: Tray-mounted container support device
Inventor: PYE FRED
IPC: A47G23/06
Filed: 1983-04-15
Abstract: A container support device 1 comprises a web 4 in the form of a sheet of plastics material (or in the form of a wire network) provided with apertures 5 (or recesses) for retaining the bases of containers, such as glasses 8, against lateral displacement, thereby preventing breakages and spillages. The device 1 also has peripheral clips 7 and/or lugs 6 which facilitate mounting of same in a tray 10 of similar dimensions, although the device 1 may also be freestanding by virtue of the lugs 6. Subsidiary inserts, e.g. sleeves, may be located in the apertures 5 to accommodate containers of reduced size.   <IMAGE>