baber/WOPTO huggingface dataset:
Patent GB-2047260-A (GB)
Title: Process for preparing a cyclic amide polymer-amide type polar solvent composition
IPC: C08G73/06
Filed: 1980-03-26
Abstract: A solution of an aromatic and/or heterocyclic polyamide in an amide type polar solvent is prepared by prepolymerizing at least one aromatic or heterocyclic diamine with at least one aromatic or heterocyclic or heterocyclic dicarboxylic acid chloride in a smaller molar equivalent than that of the diamine to prepare a prepolymer solution having a solution viscosity of 50 poise or less; by removing a by-product, hydrochloric acid, from the resultant prepolymer solution by neutralizing it with ammonia and filtration; by further polymerizing the prepolymer with an additional amount of aromatic or heterocyclic dicarboxylic acid chloride, and; finally, by converting hydrochloric acid in the resultant polyamide solution into an amide type polar solvent-soluble salt which is capable of enhancing the solubility of the polyamide in the polar solvent, with a neutralizing agent, the amount of the salt being in a range of from 5 to 95% by weight of the theoretical amount of the salt to be derived from the entire amount of the dicarboxylic acid chloride.
Patent GB-2073332-A (GB)
Title: Improvements relating to tapered roller bearings
IPC: F16C19/38
Filed: 1980-03-31
Abstract: A tapered roller bearing comprises two rows of tapered rollers 4 positioned between respective inner race members 2 and a single outer race member 1, and located by respective cages 3 or resilient material. A spacer member 5 is located between the large ends of the inner race members and serves to hold the bearing together and provide a desired amount of clearance in the assembly. The bearing has the capacity for supporting axial as well as radial loads without recourse to bulky and expensive outer retaining members. An advantageous method of assembling the bearing is also disclosed. <IMAGE>
Patent GB-2046150-A (GB)
Title: Casting Charge, Method of Preparation and Use
IPC: B22D27/04
Filed: 1980-04-01
Abstract: A method of preparing a charge of alloy material for use in metal casting. Thin wall tubes (10) consisting of one of the metallic elements of the alloy material, or an If an alloy tube is selected, all elements in the tube alloy must also be materials included in the overall formulation of the alloy material. The type and quantity of the materials contained in the tubes is deducted from the quantities set forth in the overall formula and the balance of the formula is melted and poured as a core in the tube using the tube as a mould. The resulting master charge is cut into unit charges which are then used in a subsequent casting operation by melting the entire unit charge to cast precision products of an alloy which consists of the mixed and alloyed materials of both the tube and the core. <IMAGE>
Patent GB-2058795-A (GB)
Title: Cleavage of ethylene ester copolymers
IPC: C08F8/12
Filed: 1980-09-15
Abstract: A copolymer of (a) more than 50% by weight ethylene with (b) an ester of a C3-C12 alkene carboxylic acid with a C3-C8 sec. and/or C4-C8 tert. alcohol, is cleaved to convert ester groups to carboxylic acid groups by suspending the copolymer, in the form of particles having a size of 0.1 to 8 mm, in a ketone, alcohol or ester at 40 to 75 DEG C and in the presence of an acid catalyst.
Patent GB-2060283-A (GB)
Title: Electrical plugs
IPC: H01R13/504
Filed: 1980-10-03
Abstract: A non-rewirable plug comprises a base insert (10) on which the plug pins are mounted, an insulating inner cover (44) mounted on the insert to shield some at least of the lead connections, and an outer casing which has been moulded in place on to the inner cover and the base insert and prevents access to the connections. The inner cover (44) comprises two tabs (46, 48) which engage in recesses in the insert (10) to positively locate one end of the cover, and a mounting block which is located in a recess (104) in the base insert (10) to locate the opposite end of the cover. An earth pin is inserted through apertures in a fuse cover hinge, the insert (10) and the block, rivetting of a terminal to the pin securing the assembly against a shoulder of the pin. <IMAGE>
Patent GB-2063207-A (GB)
Title: Loading dock ramp
IPC: B65G69/28
Filed: 1980-11-06
Abstract: A bridging ramp comprising a bridge plate (1) pivotally mounted on the face defining the rear end of a recess (2) to be bridged about a horizontal axis (4), the bridge plate (1) having an extension portion (5) pivotally mounted thereon, the extension portion being locatable on a platform to be loaded or unloaded, the front end of the bridge plate (1) being connected to a resilient tension member (9), one end of said tension member (9) being fixedly anchored and the other end of the arrangement being capable of being wound on and unwound from a rotatable drum (7), the drum (7) being capable of being locked against rotation, a torsion spring (8) being provided on the drum such that unwinding of the member (9) is effected by overcoming the force of the spring (8) such that the tension member prevents upward pivotal movement of the bridge plate (1) when the drum (7) is in a state of tension and is locked against rotation so long as the spring exceeds the tensional forces wherein the drum (7) is provided with at least one pawl and ratchet mechanism (14, 15) for locking the drum against rotation. <IMAGE>
Patent GB-2088785-A (GB)
Title: Floating breakwater
IPC: E02B3/06
Filed: 1980-12-09
Abstract: A floating breakwater includes a plurality of tubular members 16, 18, 20 which carry upwardly directed fins 22 which extend over the length of the members 16, 18, 20. The members are arranged to form a breakwater structure which includes substantially parallel lee and sea walls with intermediate transverse members joining the walls to form compartments 12, 14 which are substantially triangular in plan, extend over the width of the breakwater and are open top and bottom. In use the structure is submerged to a depth at which the tubular members 16, 18, 20 are located below water level to reduce the response rate of the structure to surface wave action and at which the fins 22 project to above water level horizontally to enclose the compartments at water level. Buoyancy control compartments 28, 30 attached to the structure to be located at or above water level ensure positive buoyancy of the breakwater. <IMAGE>
Patent GB-2067271-A (GB)
Title: Watering apparatus
IPC: F16K31/28
Filed: 1980-12-23
Abstract: An apparatus for intermittently turning on a water supply at intervals determined by a property of the environment comprises a water tank (10), a float-operated valve (46) connected between a water supply pipe (12) and a water delivery pipe (16), means sensitive to the property of the environment to remove water from the tank, for example a piece of towelling partially immersed in the water which removes the water by capillary action and evaporation at a rate determined by ambient humidity, and means (23) for diverting a part of the flow from the delivery pipe to replenish the tank. The apparatus further includes a first ball catch (25) adapted to retain the valve in a fully off position for a finite time in opposition to the increasing effective weight of the float means (19', 19'') as the water level in the tank falls during water removal, and a second ball catch (26) adapted to retain the valve in a substantially fully on position for a finite time in opposition to the increasing buoyancy force exerted on the float means as the water level in the tank rises during water replenishment. The strength of the catches (25, 26) is related to the weight and buoyancy of the float means in such manner as to provide a rapid movement of the valve to the fully on and off positions. <IMAGE>
Patent GB-2082682-A (GB)
Title: An internal combustion engine having a vibration damping balancer arrangement
IPC: F02B67/04
Filed: 1980-12-31
Abstract: A balancer arrangement for damping vibrations, comprises a pair of balancer shafts (1 and 2) which a driven by the engine crankshaft (5) through a gear train (3) positioned a the front or rear of the engine. <IMAGE>
Patent GB-2071098-A (GB)
Title: Dibenzocycloheptenylidenes and antiinflammatory compositions
IPC: C07C57/50
Filed: 1981-03-09
Abstract: The use of compounds of formula I as antiinflammatory agents is described. The compounds used have the general formula: 
<CHEM>
 where R is hydrogen or alkyl of 1-4 carbon atoms, R<1> is hydrogen or an alkyl of 1-4 carbon atoms and pharmaceutically acceptable salts thereof. The invention includes pharmaceutical compositions containing the compounds.
Patent GB-2074241-A (GB)
Title: Multi-stage condensate pump
IPC: F04D29/04
Filed: 1981-03-11
Abstract: The pump has rotors for respective stages secured to a common pump shaft 5. A double- suction first-stage rotor 3 is mounted overhung in the casing and has elongated rotor necks 10 each of which, in conjunction with the respective radially opposing surface of the pump casing, forms a respective hydrostatic radial bearing arrangement. The hydrostatic radial bearing arrangement comprises hydrostatic bearings 11 which are disposed on said radially opposing surfaces of the casing, and which bearings are connected via fluid supply lines 12 with one of the subsequent pump stages for supply of fluid thereby. <IMAGE>
Patent GB-2075317-A (GB)
Title: Computer graphics system
IPC: G09G5/391
Filed: 1981-04-13
Abstract: In a computer graphics system, data e.g. from an artist's tablet is passed via master bus 40, interface 48 and multiplexer 54 to frame store 50 holding intensity data for each pixel and two component colour data for alternate pixels. Alternatively data can be written into frame store 50 from scanner 44 comprising e.g. a colour camera. Simultaneously the video processor 42 reads from the frame store and provides signals for colour monitor 38. Video processor 44 includes two identical parameter stores, one controlling the display while the other is available for modification. The parameters stored include the number of elements to be sent in a 'superword' and the number of these in a line, number of lines in a field, the address of the top left (origin) of the picture in the frame store to allow shift, and the degree of magnifications (at least vertically by line repetition). <IMAGE>
Patent GB-2072713-A (GB)
Title: Method of and device for selecting needle for weft knitting machine
IPC: D04B15/82
Filed: 1979-09-28
Abstract: Method of and device for selecting a needle for a weft knitting machine which includes, in order to select one of knit, tack and welt positions for the needle, a needle selecting member (101) provided on one side of a lock (55) located on a carriage, the needle selecting member comprising an electromagnetic needle selecting actuator (68) and cams (58), (70) and (71), and another needle selecting member (102) provided on the other side of the lock (55) and comprising an electromagnetic needle selecting actuator (69) and cams (72) and (73), to thereby preliminarily select the needle by the needle selecting member (101) disposed at the rear side of the advancing direction of the carriage (the direction of an arrow A) so as to divide the needles into two groups and to further select the needle by the other needle selecting member (102) as preliminarily selected previously when the carriage reverses its direction of movement (the direction of an arrow B) so as to further divide the needles into two groups in order to thereby select one of the knit, tack and welt positions.
Patent GB-2080349-A (GB)
Title: Chlorine-resistant Spandex Fibers
IPC: D01F8/18
Filed: 1981-06-19
Abstract: A spandex fiber characterised in that, for increasing the resistance of the fiber to chlorine-induced degradation, the fiber contains an effective amount of finely divided zinc oxide having a purity of at least 99.4%.
Patent GB-2088340-A (GB)
Title: Controlling Intermittently Advanced Web During Cutting Off Cigarette Pack Blanks
IPC: B26D5/32
Filed: 1981-11-05
Abstract: Cigarette pack blanks are cut from an intermittently advanced web which carries mark(s) (54) to actuate sensor(s) (56, 57) which generate a first signal to decelerate the moving web to a slow speed and then a second signal to halt the web. Either two adjacent marks on the web actuate a single sensor (see Fig. 6), or two photoelectric sensors (56, 57) respond to a single web mark (54), for each blank cut from the web. The control circuit includes a pulse generator (163) ensuring synchronous operation of the feeder/cutter with a packing machine. The web is advanced by a variable speed motor (16) driving nip rollers (12, 13). The web is cut when stationary and the cut blanks are pressed down onto a sloping table at a slightly lower level. The blanks are removed by suction grippers (see Figs. 1-3). The web can be advanced over the previous cut blank on the sloping table. <IMAGE>
Patent GB-2090946-A (GB)
Title: Butterfly valve
IPC: F04B39/10
Filed: 1981-12-22
Abstract: A butterfly valve, for use in an intake conduit of a compressor, has a closure disc (1) and operating shaft (2) provided with transverse passages (4, 5) which, as a function of operating pressure differences or manually, are uncovered to a greater or lesser extent by means of pistons (6, 14), to regulate leakage past the disc. <IMAGE>
Patent GB-2090720-A (GB)
Title: Food product containing simulated pulp and process
IPC: A23L7/157
Filed: 1981-12-30
Abstract: Food products of the type having a smooth, continuous aqueous phase with discrete pulp-simulating particles dispersed therein are improved by employing as the pulp-simulating particles from about 1 to 10%, based upon the weight of the products, of bread crumbs consisting essentially of wheat flour, yeast and salt, the bread crumbs having a porous, striated and elongated shape and structure and a particle size wherein they are retained on a USS 60 mesh screen after passing a USS 16 mesh screen. These bread crumbs readily absorb moisture from the aqueous phase to provide soft yet coherent pulp-like particles which enhance the appeal of food products, such as barbeque sauces and simulated fruit sauces.
Patent GB-2093013-A (GB)
Title: Process for the manufacture of ceramic fibre containing granular heat-resistant or refractory materials
IPC: F27D1/00
Filed: 1982-02-15
Abstract: The manufacture of a granular, heat-resistant or refractory material includes mixing 100 parts by weight of loosened ceramic fibres with 2 to 15 parts by weight of clay and/or other common refractory additives, 1 to 10 parts by weight organic bonding agent and 5 to 100 parts by weight water. The resultant mixture is compressed by a volume factor of at least three, dried and then comminuted.
Patent GB-2098255-A (GB)
Title: Mechanical connecting device between head or foot of a prop and the cap or base of roof supports
IPC: E21D23/04
Filed: 1982-04-22
Abstract: The device comprises a pivot pin (4) which extends through the head of the prop (3) and has at each end a flat (5) which is adapted to bear against a plane surface of a holding member (6) integral with a cap or base (1). The pivot pin is locked in place by means of two stirrups (7) fixed by pin elements in holes 8 to the holding members (6). This provides a compact connection located within the cap or base, the flats (5) providing for ease of location of the pin. <IMAGE>
Patent GB-2110622-A (GB)
Title: Hybrid sail apparatus
Inventor: NARITA HITOSHI
IPC: B63H9/06
Filed: 1982-11-25
Abstract: A hybrid sail apparatus composed of a rigid sail 4 having a flat, preferably aerofoil-shaped, cross- section, and a flexible sail 13 connected to the rear portion of the rigid sail. The hybrid sail apparatus has means for freely adjusting the angles of the rigid sail and the flexible sail in accordance with the direction and velocity of the wind. The apparatus may be provided with means including a sat retractable and extractable to and from the front or lateral side of the rigid sail so as to delay the separation of flow of air. Preferably, the rigid sail is constructed to be foldable at its heightwise mid portion to reduce the height of the rigid sail as desired thereby to avoid interference between the rigid sail and shore structures when the ship moves in a harbour, channel or the like. <IMAGE>
Patent GB-2114820-A (GB)
Title: Cable ladder
Inventor: ROWE MILTON ARTHUR
IPC: H02G3/04
Filed: 1983-01-28
Abstract: A cable ladder comprises two parallel side-plates 4 with rungs 6. Side-plates 4 are spliced together by means of a fishplate 7 resting on a locator flange 11 and having an upper edge located between the side wall 8 or the side-plate and a retainer rib 12 provided on the undersurface of the top flange 9. Channel shaped rungs 6 are secured to the side plates 4 with screws 15 which are threaded into grooves 13 (fig 2, not shown). The ladder is supported by cantilever 19 and clamp 20 having longitudinally slidable bolts 21. An alternative cantilever support is in fig 3, not shown. <IMAGE>
Patent GB-2136030-A (GB)
Title: Ventilating water closet pans
Inventor: CHAN SOONG-HOI
IPC: E03D9/052
Filed: 1983-02-25
Abstract: A lavatory smell extractor comprises a flattened, flared or trumpet-shaped, air inlet 20 (72, Fig 8) to be positioned at the rear of a toilet between the seat and the top of the bowl and a wall-mounted electrically operated extractor fan for withdrawing air through that air inlet and expelling that air either to a vent pipe or to the exterior. An air filter and time switch may be provided. Such an arrangement ensures that the foul air is expelled from close to its source and so smell can be quickly removed without having to change all of the air in the room. The fan and its motor are enclosed in a common housing to reduce noise and prolong motor life. <IMAGE>
Patent GB-2116516-A (GB)
Title: Applying labels to packets
Inventor: APPLEGATE BARRY GEORGE
IPC: B65C9/14
Filed: 1983-03-10
Abstract: Apparatus for applying revenue stamps to cigarette packets, includes an oscillating transfer arm 12 and a continuously driven suction drum 6 formed with projections, e.g. pairs of pins 10. The projections engage the rear edges of successive stamps transferred from a stack 2 by the arm, and thereby accurately align the stamps on the drum. The stamps may be transferred to an indexable turret provided with suction apertures and projections where they are held across the ends of passages into which packets are pushed to apply the stamps thereto. In a modification, the stamps are held by suction on a conveyor comprising two endless bands between which the packets are pushed. <IMAGE>
Patent GB-2137268-A (GB)
Title: Gasket
Inventor: ISHIKAWA HIROSHI
IPC: B60J10/00
Filed: 1983-03-23
Abstract: A gasket 3 for the door of a freight container is made of soft, i.e. plasticised, PVC; where the gasket comes into contact with the painted surface of the container, i.e. at 32, it is provided with a layer of a thermoplastic elastomer e.g. a styrene-ethylene-butylene-styrene block co-polymer, a polyurethane or a polyester. The elastomer layer prevents the migration of the plasticiser into the paint layer which would cause deterioration. The gasket is particularly recommended for use in marine containers where chlorinated rubber based paints are used. <IMAGE>
Patent GB-2127181-A (GB)
Title: Automatic control of air/fuel ratio in i.c. engines
Inventor: LATSCH REINHARD
IPC: F02D31/00
Filed: 1983-05-06
Abstract: The idling speed of an internal combustion engine is regulated by changing the mixture or air through-flow in the engine induction duct in dependence on the smoothness of running (LU) of the engine. The ignition timing and the mixture composition also can be influenced, and the latter may be enriched during warm-up. Minimum and maximum idling speed values (nLmin and nLmax) are set to restrict the operating range of the idling speed regulation. The smoothness of running signal may be derived from known measuring means of engine speed or combustion chamber conditions. <IMAGE>
Patent GB-2120791-A (GB)
Title: Microwave gas-liquid void fraction meter
Inventor: WHELPTON JABEZ
IPC: G01N22/02
Filed: 1983-05-20
Abstract: A gas-liquid void fraction meter for measuring the ratio of gas to liquid flowing in a pipe comprises a structure (14, 15) defining a microwave cavity positioned on and encircling the pipe (10) such that the pipe passes centrally through the cavity, a first set of probe structures (12) positioned in the cavity, electrical power supply means connected to said probe structures for exciting the cavity at microwave frequencies and in a resonant mode such that the electrical field vector is parallel to the flow in the pipe (10). A second set of probe structures (12) is positioned in the cavity and electrical frequency measuring means are connected to the second set of probes to measure the frequency of the resonant cavity, said frequency being related to the mixture dielectric permitivity and thus the ratio of the gas to liquid flowing in the pipe. <IMAGE>
Patent GB-2143719-A (GB)
Title: Piece of jewellery
Inventor: BEHRENS STEVEN
IPC: A44C5/02
Filed: 1983-07-25
Abstract: There is disclosed an elongate and flexible jewellery piece comprising first and second strings of jewellery (11 to 15) which are releasably coupled together via a pair of interengaging first and second loops (22,23) provided at the coupled-together ends of the first and second strings respectively. The arrangement of the first and second loops (22,23) is such that coupling together is achieved by sliding the first loop (22) over the second loop (23) so that the second loop passes through the aperture defined by the first loop and the second string (24) extends through the first loop (22), and then the first string (21) is taken through the second loop (23) and the first and second loops are then drawn together into coupling engagement with each other. Each pair of coupled-together loops presents a visually pleasing appearance of a reef knot. <IMAGE>
Patent GB-2129754-A (GB)
Title: Feeding apparatus and the method
Inventor: MORTON DAVID CHARLES
IPC: B65G47/31
Filed: 1983-10-13
Abstract: A succession of product items (11) are delivered from a procession in end-to-end abutment in feeding apparatus (12) to a faster moving input conveyor (13) of a wrapping machine, in phase with the movement of the flights (14) of an infeed conveyor (10) of the wrapping machine by sensing (26) the position of a leading edge of an item about to be transferred to the input conveyor and comparing (25) it with the in-phase position. The delivery conveyor (12) is set to under-feed relative to the wrapping machine rate and a servo (22)-actuated differential (21) raises the speed of the delivery conveyor to an over speed-relative to the wrapping machine on a signal from the comparing means (25), whenever the leading edge is rearward of an acceptable range of positions, to restore the in-phase transfer of items. <IMAGE>
Patent GB-2150090-A (GB)
Title: Axle support arm
Inventor: MILLAR CLIVE
IPC: B60G21/05
Filed: 1983-11-21
Abstract: An axle support arm 10 which extends fore and aft in a vehicle is supported at one end 12 on the vehicle body and supports a wheel spindle 18 at its other end 16. Between the ends, the arm is deformed (at 24) so as to be bendable under an impact acting along its length, as in the event of a crash, but to be rigid under normal operating conditions where the forces acting on the arm are generally at an angle to the length of the arm. <IMAGE>