baber/WOPTO huggingface dataset:
Patent GB-2021603-A (GB)
Title: Thermoplastic polyurethane compositions
IPC: C08L75/04
Filed: 1979-05-02
Abstract: Thermoplastic polyurethane compositions useful in the manufacture of rubbery materials comprise:   (A) a thermoplastic polyurethane having a urethane content of 25-80% which is the reaction product of a diisocyanate, a diol of molecular weight below 400, and a poly(tetrahydrofuran) of molecular weight 800-4000, using a NCO:OH ratio 0.96:1 to 1.1:1; (B) a thermoplastic polyurethane having a urethane content of 45-80% which is the reaction product of a diisocyanate, a diol of molecular weight below 400, and a hydroxyl- ended polyester of molecular weight 800-4000, using a NCO:OH ratio of 0.96:1 to 1.1:1; the ratio of (A) to (B) lying within the range of 1:99 to 7:3.
Patent GB-2024942-A (GB)
Title: Spark plug for an internal combustion engine
IPC: H01T13/36
Filed: 1979-07-06
Abstract: The plug is of the screened type with the screen 25 being joined to a housing 10 of the plug by a shoulder 30 and a turned over edge portion 13 of the housing; the housing being "heat shrunk" onto the sleeve. Relative rotation is prevented by, e.g. flats 28, 29 formed respectively on the housing and the screen. <IMAGE>
Patent GB-2039010-A (GB)
Title: A fire grate
IPC: F23H15/00
Filed: 1979-08-20
Abstract: A fire grate, particularly for use in a solid fuel fired heater, has a substantially horizontal riddle member (10) supported for movement and power operated drive means, such as a reciprocating motor (15), for imparting movement to the riddle member whereby matter of sufficiently-fine size may be induced to fall through the riddle member. In a preferred form, the riddle member comprises a plurality of substantially parallel spaced apart griddle bars (11) each mounted at one end on a crank-bar (12). Alternate riddle bars (or groups of riddle bars) are mounted on crank pins of the crank bar which pins are angularly spaced from each other about the axis of rotation of the crank bar so that during movement of the riddle member adjacent bars (or groups of bars) will move relative to each other. Power driven ash removal means are also provided. <IMAGE>
Patent GB-2057947-A (GB)
Title: Tool mounting in roller box tool
IPC: B23B29/16
Filed: 1979-08-21
Abstract: A roller box tool has a body 1 on which a tool holder 20 is pivotally mounted at 21 to permit a cutting bit 30 carried by the holder to be moved towards and away from a workpiece axis A. The holder 20 has a recess 32 accepting a block 33 with a clearance J between them. The block accepts a pin 34 mounted on the body 1. The clearance provides limits for pivotal holder movement. An adjusting screw 35 adjusts the clearance J and thus the permitted pivotal movement of the holder. A spring abutting the opposite side of the block 33 causes the holder to pivot the tool away from the axis A after a cut is taken. <IMAGE>
Patent GB-2056553-A (GB)
Title: Directed inlet passages in I. C. engines
IPC: F02B31/06
Filed: 1979-08-22
Abstract: A cylinder head 10 has a "directed" inlet passage whose inlet duct 16 is lined over at least its downstream end portion with a liner sleeve 30 which has a tongue 31 extending around about half of the circumference of the sleeve. The upper part of the tongue 31 is shaped to match the internal surface of the upper part of the bowl 13 of the inlet passage against which it abuts when the sleeve 30 is fully-inserted. The projection of the tongue 31 into abutment or close proximity with the surface of the upper part of the bowl 13 causes the tongue to act as a deflector tending to direct the airflow passing the valve seat 14 towards the cylinder wall 12, thus increasing swirl. Adjustment of the swirl can be effected by longitudinal and/or angular adjustment of the sleeve 30 in the duct 16, for example for equalisation of swirl between several cylinders. The sleeve 30 may taper downstream and may be of rectangular section with radiused corners. It may be of mild steel or plastics. <IMAGE>
Patent GB-2032466-A (GB)
Title: Coloured Non-chromate Conversion Coating Solutions
IPC: C23C22/48
Filed: 1979-09-20
Abstract: Improved color, brightness and corrosion resistance are imparted to metal surfaces such as zinc plated surfaces, by treatment with a non- toxic conversion coating solution comprising sulfuric acid, hydrogen peroxide, a silicate and at least one cationic triarylmethane dye. Certain organophosphorus compound additives can be included in the solution further to enhance the corrosion resistance of metal surfaces treated with the solution.
Patent GB-2050591-A (GB)
Title: Lampshade
IPC: F21V1/06
Filed: 1979-11-29
Abstract: A lampshade comprises a number of panels 1, each of which comprises a covered frame 3 attached to a ring 2 suitable for connection to a light fitting. <IMAGE>
Patent GB-2041040-A (GB)
Title: Cutter Pick
IPC: B02C18/18
Filed: 1979-12-31
Abstract: A mineral cutting tool 1 comprises a head 2 and a shank 3 extending therefrom for fitting into a socket of a box, the shank 3 having a laterally extending, two-part aperture 6, the parts 7 and 8 thereof communicating with one another, with the first aperture part 7 housing a first portion 10 of a resilient retaining member 9 whereby the latter is secured to the shank 3, the second aperture part 8 housing, with clearance, a second portion 12 of the resilient retaining member 9, which second portion 12 is flexibly connected to the first portion 10, the second portion 12 projecting at least from one end of the second aperture part 8 for abutting engagement, in use, with the socket of the box. <IMAGE>
Patent GB-2042028-A (GB)
Title: An improvement in or relating to coal cutter drums
IPC: E21C25/10
Filed: 1980-02-11
Abstract: A coal cutter drum is carried by a shaft, the drum being provided over a relatively narrow region at the end remote from the shaft with a plurality of cutter pick boxes (20) spaced apart around the periphery of the drum and being provided over the remainder of its width with pick boxes (20) spaced apart at a relatively greater peripheral spacing. <IMAGE>
Patent GB-2043562-A (GB)
Title: Control surfaces of aircraft
IPC: B64C13/00
Filed: 1980-02-21
Abstract: An aircraft has an auxiliary control surface/or canard 2 which normally moves freely in the surrounding flow, but upon the application of a control signal at 14, the surface is coupled to a servo device 11 which drives surface 2 to a desired position. The lever 8 which actuates, surface 2 is coupled to the piston 6 of a hydraulic servo cylinder 5. Cylinder 5 is normally by-passed by a pipeline 12, thus permitting free movement of surface 2. A by-pass valve 13 is provided in pipeline 12 and upon application of control signal 14, valve 13 closes and piston 6 is driven to a desired position by servo device 11 via a control valve 9. <IMAGE>
Patent GB-2070555-A (GB)
Title: Vehicle tipping rig
IPC: B60P1/16
Filed: 1980-02-28
Abstract: The invention relates to the unloading of wheeled vehicles by tipping, enabling a bulk load to be discharged under the force of gravity, and more particularly to a rig for so doing. Apparatus has been proposed for bodily tipping vehicles to discharge a load therefrom, but such apparatus have been essentially stationary, and not adapted to the discharge of material onto a horizontal surface. The present invention meets this problem by providing a rig for tipping a wheeled vehicle (12) about a horizontal axis perpendicular to the longitudinal axis of the vehicle (12) in which a tipping frame (14) is pivotally mounted on a main frame (2) which is itself mobile in a direction parallel to its longitudinal axis. Means (10) are provided for tipping the tipping frame (14) about an axis traversing the main frame (2) to discharge a load therefrom. Because the main frame (2) is mobile, it can shift away from discharged matter during the unloading step, thereby creating space in which additional matter may be deposited. Braking means are preferably included, either directly between the main frame (2) and the ground, or in the wheels (4), upon which the main frame (2) can be supported, and their suspension mechanism. <IMAGE>
Patent GB-2075079-A (GB)
Title: Capping Strip
IPC: E04F19/06
Filed: 1980-04-26
Abstract: A capping strip assembly for covering panel joints in which a base strip (1) and a capping strip (2) is provided each having longitudinal projection formation (12, 22) for retentive snap engagement of the strips together, the cover strip (2) further having side edges or walls (23) shown outwardly inclined and arranged to lie alongside the base strip (1) and may also be laterally spaced from the latter. The base strip (1) is shown of channel section of which the side limbs (11) have inwardly directed lips (12) and the capping strip (2) has internal spaced apart limbs (21) having outwardly directed lips (22) for retentive snap engagement with the base strip lips (12). <IMAGE>
Patent GB-2075665-A (GB)
Title: Electric fires
IPC: F24C1/14
Filed: 1980-05-08
Abstract: Radiant bars 11, 12, 13 are arranged in front of a parabolic reflector 14 so that radiant heat is beamed out of the fire. Behind the reflector a tangential fan 21 is optionally energized to direct air over the radiant bars to turn the fire into a fan heater. A fuel simulation 17 above the bars is illuminated by lamp 18. A secondary heated air path emerges from an opening 25 in front of the fuel simulation. The main path of the air is down across the back of the reflector, reflected by baffle 23 to pass up over the radiant bars. <IMAGE>
Patent GB-2070950-A (GB)
Title: Dosing livestock
IPC: G05D11/00
Filed: 1981-02-02
Abstract: In the dosing of livestock with an anthelmintic by administering the anthelmintic on a continuous basis in the animal's drinking water there is provided a tank 1 for the drinking water, a water line 18 to the tank, a solenoid valve 20 on the line for controlling the input of water to the tank and which is actuated by a float switch 5 in the tank and also by a timer. The timer operates at predetermined time intervals to open the solenoid valve to fill the tank and also activates dosing means for supplying a measure dose of anthelmintic to the water in the tank. The dosing means may comprise a dose pump 11 located in a storage container 10 for the anthelmintic and adapted to pump a quantity of the anthelmintic to a metering chamber 12 which retains a measured quantity of the anthelmintic. That measured quantity is drawn into the water line, and thence to the water tank, by a venturi pump 17 when the solenoid valve 20 is opened to fill the tank with water. <IMAGE>
Patent GB-2094648-A (GB)
Title: Apparatus for coupling and uncoupling toy vehicles
IPC: A63H18/02
Filed: 1981-03-14
Abstract: The automatic uncoupling of a toy semitrailer (31) from a toy tractor truck (43) utilises a ramp (29) in a roadway which is inboard of the tractor truck wheels, and this ramp is engaged by the forward dolly wheels (38) on the semitrailer. Automatic coupling is achieved by a simple bevelled end (46) on the rear of the toy tractor, which backs up to the semitrailer, and the king pin (39) of the semitrailer rides up this bevel to the pivot flat area (42) of the tractor to drop into the pivot hole (41). Both operations are carried out in the same locality by a reciprocating dock (27) which is contacted by the semitrailer during its backing up at the time its dolly wheels ride up the ramp to release the tractor. After the tractor vehicle departs, a delayed spring action moves the dock forwards to move the semitrailer forwards off the ramp so that the semitrailer may then be contacted by the tractor backing up to it to connect the two vehicles. <IMAGE>
Patent GB-2074583-A (GB)
Title: A Method of Preparing Butadiene Adducts
IPC: C09D121/00
Filed: 1981-04-16
Abstract: An adduct of (A) a butadiene lower polymer or copolymer and (B) an alpha , beta -ethylenically unsaturated dicarboxylic acid compound is prepared by reaction in the presence of (C) a 2,5-di-tert-alkylhydroquinone compound of the formula   <IMAGE> wherein R1, R2 and R3 each C1-8 alkyl groups.a
Patent GB-2097880-A (GB)
Title: Improvements in pipe joints
IPC: F16L23/04
Filed: 1981-05-02
Abstract: A pipe joint comprises a sealing ring (19) which is clamped between collars (13, 14) on the pipe ends by a split clamp ring (12) whose tapered internal surfaces (17, 18) engage resilient rings (23, 24) disposed between these surfaces and the collars. Yielding of the resilient rings (23, 24) ensures that the forwardly projecting spigots (20, 21), forming the pipe ends proper about which the sealing ring (19) is seated, are not brought into abutment with one another before the clamp ring (12) is fully tightened. This ensures a proper seal and reduces the risk of fracture of the clamp ring. <IMAGE>
Patent GB-2081852-A (GB)
Title: Protective shields
IPC: F41H5/04
Filed: 1981-06-29
Abstract: A missile-proof shield is formed from a rigid enclosure (5) of generally flat form containing one or more layers (9) of a penetration resisting fabric such as a closely woven aramid fabric. The enclosure has at least one outer wall in the form of a rigid board and handles may be provided for carrying purposes. A paper-retaining clip may be attached to the enclosure so that the shield can also be used as a clipboard, or the shield may be incorporated into a case. <IMAGE>
Patent GB-2105936-A (GB)
Title: Multistage semiconductor integrated circuit arrangement
Inventor: KRAMBECK ROBERT HAROLD
IPC: H03K19/003
Filed: 1981-09-19
Abstract: In a semiconductor integrated circuit of the type incorporating a number of network stages (SN) designed to operate in a preselected timed relationship with one another, the timing means comprises a number of delay circuits (20) fabricated directly on the semiconductor chip and comprising components (e.g. transistors 61-64) substantially identical to the components (e.g., transistors 47-48, 50-51) of the stages, but in a design configuration which operates slower. The effects on the characteristics of the network stages caused by manufacturing variations is substantially duplicated in the delay circuits, whereby the speed of operation of each circuit device is automatically correctly adjusted to accommodate such variations. <IMAGE>
Patent GB-2085032-A (GB)
Title: Isostatic Pressing of Chromium Sputtering Targets
IPC: C23C14/34
Filed: 1981-10-01
Abstract: Crack-free and pore-free targets for cathodic sputtering are produced from chromium or chromium base alloys in the form of powders, pressed articles or cast members by introducing the chromium material into a metal sleeve, evacuating and sealing the latter, and subjecting the encapsulated material to pressurised gas at 600-1500 DEG C and 700- 3100 bar. The metal sleeve is subsequently removed by mechanical or chemical action.
Patent GB-2086487-A (GB)
Title: Fluid apparatus
IPC: F15B13/00
Filed: 1981-10-26
Abstract: A circuit member 1 of a fluid apparatus has at least one slot 2, 3, 4 and/or at least one groove along which, in use, fluid will flow in a direction parallel to the flat surfaces of two body members between which the circuit member is interposed. Resiliently- deformable sealing material 7 is joined to the boundary wall of the slot and/or the groove. This sealing material is constrained against movement in an outward sense away from the boundary wall and has an axial length which is smaller where it is joined to the boundary wall than at a position remote from the boundary wall. <IMAGE>
Patent GB-2092693-A (GB)
Title: Flange Joint for Thin-walled Pipes
IPC: F16L41/08
Filed: 1982-02-09
Abstract: The invention relates to a flange joint for thin-walled pipes. Around the extreme end of the pipe (1) to be joined is arranged a combined sealing and stopping means (6), behind said means (6) a retaining ring comprising a helical spring (4) filled with balls (5) or the like, and behind the retaining ring a clamping flange (3) provided with a shoulder (7) for engagement with the retaining ring (4). The shoulder (7) of the flange is dimensioned so that, when the flange is tightened, the shoulder presses the retaining ring into the pipe so as to deform the pipe wall and form a groove for holding the retaining ring (4). <IMAGE>
Patent GB-2097224-A (GB)
Title: Digital concentrator and/or multiplexor
IPC: H04Q11/04
Filed: 1982-04-13
Abstract: In a telephone exchange system, the subscriber lines (TLN1, etc.) are connected in groups of, for example, six to intermediate switching stations (RU) each of which is connected via its own PCM link (Vltg) to an interface (RU-IF) in a central control circuit (CU). Each link is a four-wire line using two two-wire lines, with DC supply thereover from the central control unit to the remote units in phantom. Each remote unit has DC-DC convertor with a "buffer" battery. <IMAGE>
Patent GB-2098898-A (GB)
Title: Foundry mould production
IPC: B22C9/12
Filed: 1982-05-19
Abstract: To allow the recovery of the refractory sand from a foundry mould, it is known to compact sand around a destructible pattern and to hold the sand form stable by vacuum during casting. This involves expensive equipment, and any failure of vacuum during casting causes mould collapse. The production of a form stable mould which cannot collapse and allows full recovery of sand, is attained by forming a pattern from a readily destructible material e.g. foamed plastics. encasing the pattern in particulate mould forming material having a water content e.g. of between 1 % and 5%, and freezing the mould forming material around the pattern. The particulate material may include a green bond material, and the destructible pattern may have an external coating to enhance the surface of the casting.
Patent GB-2102413-A (GB)
Title: Bisperoxycarbamates, their preparation and use as crosslinking agents
Inventor: HEPBURN CLAUDE
IPC: C07C409/40
Filed: 1982-05-26
Abstract: The invention provides compounds of the general formula   <IMAGE>  in which R1 represents a carbon-based linking group which may incorporate one or more hetero atoms and R2 and R3, which may be the same or different, each represents an aliphatic or cycloaliphatic group which may be unsaturated or saturated, unsubstituted or substituted, a straight chain or a branched chain an aryl group which may be unsubstituted or substituted or an araliphatic or aliphaticaryl group which may be unsubstituted or substituted and the aliphatic group of which may be unsaturated or saturated, a straight chain or a branched chain, a process for their preparation and their use as crosslinking agents, e.g. for plastics and rubbers. The compounds also act as chemically-bound antioxidants. <IMAGE>
Patent GB-2124273-A (GB)
Title: Improvements relating to mine roadway support struts which are capable of securing the newly erected support
Inventor: EVERETT WALTER
IPC: E21D11/28
Filed: 1982-07-26
Abstract: A beam 2 abutts the webs 3 of adjoining mine roadway supports 1, the beam is attached to a newly erected support by means of pivotally attached plate 4 which is swung from the vertical to the horizontal plane, thereby causing the protruding tongue 11 to locate behind the flange 1B of the support while the end of the tongue abutts the side of the support web 3, a further strut may be attached by a bolt 5 and nut through a hole located away from the tongue 11 near to the end of the plate 4. <IMAGE>
Patent GB-2105179-A (GB)
Title: Improved curtain hanging device
Inventor: UTTING PETER RAYMOND
IPC: A47H13/12
Filed: 1982-08-11
Abstract: The device 1 comprises means 3 for engaging the upper edge of the curtain rotatably connected to a carriage 2 for gliding movement along a rail 8. <IMAGE>
Patent GB-2127695-A (GB)
Title: Direct-coupled output stage for rapid-signal biological stimulator
Inventor: MONEY DAVID KERRY
IPC: A61N1/36
Filed: 1982-09-29
Abstract: A direct-coupled output stage, which is especially advantageous for use in an implantable heart pacer, includes means (46, 60) for shorting the electrodes (IND, STIM) together after a pacing pulse is generated, in order to provide for charge balancing at the electrode/electrolyte interfaces. Not only is the use of a bulky coupling capacitor avoided, but the stored charge dissipates in a much shorter time, thereby minimizing the "blind" interval in the sensing cycle. <IMAGE>
Patent GB-2113427-A (GB)
Title: Central heating systems
Inventor: FFISKE GERALD DANDRIDGE
IPC: F24D19/10
Filed: 1982-11-30
Abstract: A hot water central heating system has a boiler 1, a circulating pump 4, and a controller 5 which varies the speed of the pump between pre-set maximum and minimum speeds in accordance with the difference in temperature of the water leaving and returning to the boiler as measured by temperature sensors TH1 and TH2 in the supply and return pipes 2 and 3 respectively. The system has conventional high and low thermostat contacts 11 and 12 for controlling the boiler 1, and also has contacts 13 in parallel with the contacts 12 and arranged to open to shut off the boiler when the pump 4 operates at minimum speed. The boiler switches on again if the speed of the pump increases, thereby closing the contacts 13, or if the contacts 12 are closed. <IMAGE>
Patent GB-2115013-A (GB)
Title: Composition for selective chemical removal of hard surface coatings from superalloy substrates
Inventor: SULLIVAN THOMAS E
IPC: C23F1/30
Filed: 1983-01-18
Abstract: The composition comprises an aqueous solution of H2SO4, a nitro- substituted aromatic compound, and optionally a fluoride ion producing species, and a surfactant. The composition can selectively remove hard surface layers deposited through flame, plasma spray, and detonation gun techniques on superalloy substrates by contacting the above stripping solution in a heated bath wherein the bath is continuously agitated by an ultrasonic agitation means.
Patent GB-2135725-A (GB)
Title: Combination lock
Inventor: YAW-KUEN YANG
IPC: E05B37/12
Filed: 1983-02-18
Abstract: A combination lock includes a bolt plate 50 that can be retracted independently of a fence plate 60 and dial wheel assemblies 40 when a strap hinge is pressed there against so that the bolt plate 50 can latch into the strap hinge whether the dial wheel assemblies 40 are in a proper combination symbols or not. The bolt plate 50 which latches into the strap hinge can be moved against a biassing force by means of the fence plate 60 which has spaced apart downward hook members 621 abutted against three dial wheel assemblies 40 when it is locked against a releasing movement. Each of the dial wheel assemblies are provided with a radial bore 433 and an axial groove 414, the radial bores 433 being respectively registered with the axial grooves 414 when the dial wheels 40 are in the proper combination of symbols in a proper sequence for permitting the releasing movement of the fence plate 60 that brings the bolt plate 50 to an unlatching position. <IMAGE>
Patent GB-2138084-A (GB)
Title: A hydraulic overrun brake system for a trailer
Inventor: URBANKE WALTER
IPC: B60T11/10
Filed: 1983-04-12
Abstract: A hydraulic brake system for a trailer whose brakes are hitch- actuated and wherein a brake master cylinder 1 on the trailer for the individual wheel brake cylinders 2 is actuable by a strut member of the hitch-actuation system is arranged to not operate automatically during reversal, by rendering the hitch-actuated brake system inoperative when the normal direction of travel of the towing vehicle is reversed. For this purpose at least one wheel brake is provided with floating brake shoes 4, a support 5 is arranged on a base plate to which the brake shoes are adapted to be contiguous, end relief means 13 are provided which are actuable by the relative movement of the secondary brake shoe, Fig. 4, or via a link, Fig. 3, to create a communication 9 between the pressure side of the brake master cylinder 1 and the brake fluid reservoir 11 during reversal of the normal direction of travel of the towing vehicle. The spring loaded piston 15 also acts as a brake pressure limiting valve during forward travel of the trailer. <IMAGE>