baber/WOPTO huggingface dataset:
Patent GB-2143306-A (GB)
Title: Prosthetic heart valve and method of preparation thereof
Inventor: TOTTEN ROBERT P
IPC: A61L27/36
Filed: 1984-07-12
Abstract: The valve comprises a valve element (11) of natural tissue mounted on a cloth-covered stent and suture ring assembly (13), the stent having a series of circumferentially spaced posts (25',25'',25''') separated by scalloped portions (26) above a common annular base. In making the valve a substantially rectangular section of natural tissue, e.g. bovine pericardium, is cut, cleaned in saline solution, and partially fixed in a glutaraldehyde solution. The tissue section is then secured by stitching (40,42,43) onto the base and posts of the stent, the latter being mounted on a mandrel (30). The assembly is then dipped in saline solution causing the tissue to conform to depressions (33) in the mandrel and form leaves (15) of the valve element; thereafter the element is fixed in glutaraldehyde solution and the valve removed from the mandrel. <IMAGE>
Patent GB-2144842-A (GB)
Title: Illuminated instruments
Inventor: COHEN HOWARD
IPC: G01B3/10
Filed: 1984-08-02
Abstract: A retractable tape measure or other instrument has a casing (12) with a receptacle for a power cell (62) and an electrical lamp (60). An actuator is movable between first and second positions and a resilient flexible printed circuit board (80) is disposed within the casing. In a first position of the actuator no circuit is completed to the lamp, while in the second position the circuit board is displaced from its normal location into a position 82 where contact is made between the circuit board and an electrical contact (82) to complete the circuit to the lamp. In a tape measure the lamp is adjacent to an opening through which the tape rule passes, the rule being located in extended position when the actuator is in its second position. <IMAGE>
Patent GB-2151216-A (GB)
Title: Closure for bottles and the like
Inventor: SONDAL SVEN
IPC: B65D47/08
Filed: 1984-10-04
Abstract: A cap-like closure for bottles and the like, comprises a first part (2) surrounding the neck of a bottle and provided with an outlet opening (10) and a second part (4) forming a lid for the part (2) and joined to part (2) by an integral flex-hinge. An annular tear-off strip (5) attached to the upper edge of the first part (2), acts as a catch to engage a finger grip 16 at the lower edge of the part (4), when the closure is closed. The grip 16 can only be released, to allow the closure to be opened by tearing off the strip (5). <IMAGE>
Patent GB-2165502-A (GB)
Title: A power-assisted steering gear
Inventor: ADAMS FREDERICK JOHN
IPC: B62D5/083
Filed: 1984-10-12
Abstract: A power-assisted steering gear has a steering input shaft 9 and a pinion shaft 4 which are co-axially coupled together through a torsion bar 13 so that the shafts 4 and 9 are capable of restricted rotation relative to each other. The input shaft 9 includes a valve rotor 10 which is received within a valve sleeve 3 rotatable with the output shaft 4. Mounted on the shaft 9 is a C-shaped spring 18 to provide an additional biasing force to restore the rotary valve to its neutral condition. Preferably the C-spring 18 is pre-loaded so that this pre-load has to be overcome before the rotary valve can be displaced from its neutral condition. <IMAGE>
Patent GB-2149751-A (GB)
Title: Excavator bucket and knuckle assembly
Inventor: BROCKLEBANK NORMAN
IPC: E02F3/32
Filed: 1984-11-09
Abstract: An excavator comprises a boom arm 4 which carries a knuckle assembly 5, which in turn provides a mounting point for a bucket. A head unit is provided between the bucket and knuckle assembly, the head unit incorporating a bearing 27 for rotating the bucket relative to the knuckle assembly about an axis A-A transverse to the pivot axes of the knuckle assembly and substantially perpendicular to the plane of the top plate 24 of the bucket. <IMAGE>
Patent GB-2154955-A (GB)
Title: Folding hood for vehicles
Inventor: BAUER THEODOR
IPC: B60J7/12
Filed: 1985-02-15
Abstract: A folding hood (2) for vehicles, particularly for motors cars is described, the support of which consists of a trapezoidally shaped main hoop (3) pivotable about a transverse axis of the vehicle, in the two lateral regions of which a two-part foldable roof side frame (8) consisting of front and rear roof frame side parts (8a, 8b) is mounted pivotably on each of two sides, two roof frame guide members (9) controlling the movement cycle of the front roof side frames (8a), which are mounted on the main hoop (3), two main guide members (10) attached to brackets (11) provided on the vehicle body, on each of which the associated roof side frame (8) is guided, a roof front frame (7) connecting the roof side frames (8) and an intermediate hoop (4) arranged between the roof front frame (7) and the main hoop (3), the construction of the hood supporting structure being such that when the folding hood is folded together the folded roof side frames (8) are located at least substantially in alignment with the lateral uprights of the main hoop (3) without tension in the joints. 
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Patent GB-2173364-A (GB)
Title: Digital zero-if circuit
Inventor: WONG ANDREW CHI-CHUNG
IPC: H03B27/00
Filed: 1985-04-03
Abstract: A digital zero-IF circuit having first and second signal paths 11I, 11Q to which a radio frequency signal is applied, each path including a sampling and digitising means 12I, 12Q and a digital filter means 13I, 13Q, the circuit including a clock generator arranged to generate two clock pulse trains in quadrature phase relationship, each sampling means being operated in response to a respective one of the clock pulse trains. <IMAGE>
Patent GB-2158225-A (GB)
Title: Oven door
Inventor: FINGERHOLZ KARL-HEINZ
IPC: F24C15/04
Filed: 1985-04-04
Abstract: The door 1 for a baking and roasting compartment of an oven comprises an inner door member 2 with an observation window 3 and outer door members formed by a pane of glass 5 which is detachably connected to the inner door member by means of a detent connection. The detent connection comprises a plurality of spring elements 8 which are fitted to the inside of the glass pane 5 of the outer door member and which comprise a resilient detent arm 11 which merges into a rising surface 12 extending obliquely and has an arcuate detent 13 at the free resilient end of the spring element 8 and corresponding detent openings 15 for the detent 13 on the edge 14 of the inner door member 2. <IMAGE>
Patent GB-2176371-A (GB)
Title: Signal alert systems
Inventor: WOOD RAYMOND
IPC: H04M19/04
Filed: 1985-06-06
Abstract: An alert system has an input (10) for connection to a low power electrical warning signal such as the bell terminals in a telephone hand set, terminals (11) for connection to a power supply, such as the AC mains, of higher power rating, output terminals (12) for connection to an alert device, an electronically controlled switch (16, 17, 18) connected between the power supply terminals and the output terminals and adapted to close the circuit in response to a control signal, and a transducer (14) such as a light emitting diode, connected between the input terminals and the switch to convert the electrical input signal into an optical signal and the optical signal into a control signal for said switch, whereby the input terminals are electrically isolated from the power supply terminals. <IMAGE>
Patent GB-2159912-A (GB)
Title: Pipe insulation
Inventor: BINDER MAURICE
IPC: F16L59/02
Filed: 1985-06-10
Abstract: Insulation for pipes and ducts comprises a plurality of insulation members (1') which are secured to an adhesive tape (9). Each insulation member (1') comprises a base (2'). Sides (3',4') converge upwardly from the extremities of the base (2') to the ends of a top (5'). An optical rib (6) extends from the base (2') to the top (5') and divides the interior of the insulation member (1') into two passages (7,8). In use, the insulation is simply arranged circumjacent the pipe or duct to be insulated and then taped in position.
Patent GB-2170353-A (GB)
Title: Seal for a fluid-operable device
Inventor: DAY JOHN
IPC: F15B15/28
Filed: 1985-12-30
Abstract: A seal, for use in a fluid-operable device, or a part thereof is made of a material incorporating a constituent which is capable of magnetic polarisation, thereby to enable the seal or the part thereof to be magnetised, whereby, on relative movement between an element 4 of the device on which the seal 7 is mounted and a magnetically operable switch 8, operation of the switch 8 will be effected. The material may be barium ferrite. The seal 7 may be formed with a body portion and a more-flexible lip or sealing portion 10, each of an elastomeric material of which only the elastomeric material of the body portion incorporates the magnetically polarizable constituent. <IMAGE>
Patent GB-2169499-A (GB)
Title: Double-headed toothbrush
Inventor: BEINY DAVID
IPC: A46B7/04
Filed: 1986-01-03
Abstract: A twin-headed toothbrush wherein a pair of opposed brush heads (13) preferably inclined at an angle of about 90 DEG  relative to one another, are mounted on respective elongate shanks (11) of a handle member with a gap between them. The shanks are connected together at a position (10) spaced from the brush heads and the heads can be pushed towards one another against a resilient bias to vary the pressure during brushing. <IMAGE>
Patent GB-2175073-A (GB)
Title: Tripod support for a projectile launcher
Inventor: ROTH SIEGFRIED
IPC: F41A23/12
Filed: 1986-03-10
Abstract: A tripod comprises a mount for the support associated with the launching tube and slight system of a projectile launcher the mount 1 being positioned for elevation on one end of a tube 5 of which the other end is pivoted to a leg 8 of the tripod in such a way as to be pivotable about a horizontal axis 7. A device for balancing the mass resting on the mount eg. a bow spring (26, Fig. 2a) is provided as well as a device for maintaining the angular position of the mount 1 with respect to the horizontal when the tube 5 is pivoted, eg. a parallelogram linkage formed by the tube 5 and a bar 14 extending longitudinally through the tube 5. <IMAGE>
Patent GB-2188014-A (GB)
Title: Materials handling system
Inventor: REVELL CHARLES EDWARD
IPC: B23Q7/14
Filed: 1986-03-21
Abstract: A materials handling system which can be used for transferring components to be machined from one machine A,B,C,D,E to another uses a carriage 14 which is guided by an embedded track 16 in the floor. The carriage moves past a docking station 20 associated with each machine, and the docking station allows a small stock of parts awaiting machining and of machined parts to be held. A gantry 22 transfers parts between the machine and the docking station. The carriage 14 is electrically driven from a mains supply and can be controlled to visit the machines adjacent its track in any desired sequence. <IMAGE>
Patent GB-2174950-A (GB)
Title: Apparatus for the direct soling of shoe uppers
Inventor: OSTER LOTHAR
IPC: B29C45/17
Filed: 1986-03-26
Abstract: An apparatus for the direct soling of shoe uppers comprises a set of moulding stations and an injection unit. The injection unit includes a mixing chamber provided with a screw 10 which can be changed automatically. In order to permit the screw 10 to be camped and released quickly, the screw 10 is mounted on a spindle 7 constructed as an expandable mandrel. The spindle 7 has an expandable sleeve portion 28 for clamping the screw 10 and a piston 32 for pressurizing the fluid which causes the portion 28 to expand. Piston 32 is loaded by a spring 36 and unloaded by a cylinder unit 40 which drives a dog element 42 which engages the end of piston 32. <IMAGE>
Patent GB-2177523-A (GB)
Title: A system for dispensing a liquid
Inventor: GLASGOW GEOFFREY
IPC: G01F23/296
Filed: 1986-06-27
Abstract: A system for dispensing a liquid e.g. beer comprises a plurality of controllable dispensing outlets (5); a pump (3) for pumping liquid to the outlets; a motor (11) for driving the pump; and a control circuit for controlling the motor. The control circuit comprises monitoring means (6) for monitoring the pressure of liquid fed from the pump and electronic means (8, 9), connected with the monitoring means, for regulating the motor for maintaining the pressure substantially constant. Circuitry is also provided for determining when the supply of liquid is exhausted and for stopping the motor thereupon. Exhaustion is capable of being distinguished from a full flow condition. <IMAGE>
Patent GB-2193484-A (GB)
Title: Security bag
Inventor: HARDCASTLE RICHARD J
IPC: B65D33/16
Filed: 1986-08-08
Abstract: A bag of relatively thick plastics material particularly suitable for transporting articles of value such as coins, comprises a back panel (2), and a front panel (3) sealed together by means of side welds. A slit opening (6) is provided across the front panel and a membrane (10) of relatively thinner plastics film underlies the opening and carries a pressure sensitive adhesive (13) for sealing purposes which is protected (before sealing) by a removable strip (14) of silicone treated paper. <IMAGE>
Patent GB-2205558-A (GB)
Title: Recovery of alumina from aluminosilicates
Inventor: DYSON PETER
IPC: C01F7/306
Filed: 1987-05-18
Abstract: Alumina is recovered from an aluminosilicate vida leached water-soluble residue obtained from the reaction of the aluminosilicate with hydrated calcium and/or magnesium chloride, with or without a minor proportion of sodium chloride, the leached residue is treated, preferably with the application of heat, with a mineral acid such as hydrochloric acid which forms a water-soluble aluminium salt, this can be diluted with water to produce an aqueous solution of the aluminium salt and an insoluble residue comprising hydrated silica, the aluminium salt solution being separated from the insoluble residue and the aluminium hydroxide, alumina thereafter being recovered from the aluminium salt solution, for example by evaporation or by treatment with alkaline metal hydroxide or ammonium hydroxide.
Patent GB-2191981-A (GB)
Title: Method of and means for immobilising motor vehicles
Inventor: JOHNSON ROBERT MURRAY
IPC: B60R25/01
Filed: 1987-06-19
Abstract: A method of immobilising a motor vehicle comprises the steps of moving at least the back rest (6) of the driver's seat (2) forward into a position closely adjacent the steering wheel (10), and locking the seat (2) and the back rest (6) in said forward position. The means for immobilising a motor vehicle comprises a locking device operable to retain the back rest (6) of the seat (2) in a forward position closely adjacent the steering wheel (10). <IMAGE>
Patent GB-2207111-A (GB)
Title: Improvements in vehicle tail lifts
Inventor: BROOMAN DAVID HENRY
IPC: B60P1/44
Filed: 1987-07-20
Abstract: A vehicle tail lift (10) comprises a platform (11), a telescopic arm (12) and a support pillar (13). The telescopic arm is pivotably mounted to the support pillar by a pivot (16) and is movable using a lever (17) between stowed and deployed positions. The platform is pivotably mounted to the telescopic arm by a special pivotal mountaing (14) and is movable between stored and deployed positions. The pivotal mounting allows the platform to be readily detached from the arm when the platform is in its stowed position, but prevents its detachment when the platform is in its deployed position.
Patent GB-2202777-A (GB)
Title: Method of producing a neck-in can
Inventor: SAWADA KAZUHIRO
IPC: B21D51/32
Filed: 1987-09-11
Abstract: A method of producing a neck-in can by necking simultaneously with double seaming, wherein a can cover 1 and a can body 2 are formed so that a difference between a diameter of a curl opening of the can cover and an outside diameter of a flange of the can body is in the range from 0.2 mm to 3.2 mm, and a neck-in portion is formed by lower jaws of a first seaming roll (5, Fig. 5(a)) and a second seaming roll (6, Fig. 5(c)), respectively, so that the amount of reduction in diameter B of the neck-in portion is within 5% with respect to the outside diameter A of the can body, and the amount of reduction in diameter is less than 3.5 mm. The width of a flange of the can body is formed within the range from 1.2 mm to 2.6 mm. The radius of curvature of the lower jaws of the first seaming roll and the second seaming roll, respectively, is formed to be above 0.8 mm, and the lower jaw of the first seaming roll and the lower jaw of the second seaming roll come into contact with the same height-position of the can body when a can is seamed. <IMAGE>
Patent GB-2202167-A (GB)
Title: Degassing liquids
Inventor: BRUNDIGE JR VIRGIL LEE
IPC: C02F1/04
Filed: 1988-03-10
Abstract: In a process for removing dissolved gas, e.g. oxygen, from a liquid, e.g. sea water (22), a stripping gas (27), e.g. natural gas, inert to said liquid is flowed concurrently with the liquid through a static mixing means (26). The stripping gas allows dissolved gas to come out of solution so it can be separated from the liquid by standing in a separator tank (30), gas being removed from the top of the tank (31) and water from the bottom (33). <IMAGE>
Patent GB-2217295-A (GB)
Title: An envelope
Inventor: LIN LONG-RU
IPC: B65D27/38
Filed: 1988-04-15
Abstract: An envelope has a flap (3) of which the inside surface has a layer of pressure-sensitive adhesive which is protected by a wider strip of release paper (4) before use. Preferably, a tear strip (6, 7) made of tough material is stuck to the adhesive just above the folding line between the flap (3) and the front of the envelope. The pressure-sensitive adhesive may comprise double-sided adhesive tape. <IMAGE>
Patent GB-2208064-A (GB)
Title: Kit for bonding resin to dentin
Inventor: OKUDA REIICHI
IPC: A61C5/00
Filed: 1988-04-26
Abstract: A method for bonding a restorative composite resin to dentin which comprises: treating the surface of dentin with a dentin-treating liquid for, 1 to 90 seconds obtained by adding glutaraldehyde and ferric chloride to an aqueous solution of ethylenediaminetetraacetic acid regulated to a hydrogen ion concentration (pH) of 7.4; removing the treating liquid by water-rinsing to dry the thus treated surface of dentin; applying a primer comprising an ethylene related unsaturated monomer, a (meth)acrylic ester polymer and tri-n-butyl borane on the dried surface of dentin; and filling the restorative composite resin onto the applied surface of dentin.
Patent GB-2203849-A (GB)
Title: Method of exposing a semiconductor water to light from a mercury-vapor lamp
Inventor: KIRA TAKEHIRO
IPC: G03F7/20
Filed: 1988-05-04
Abstract: In a step-and-repeat process for exposing a water (2) to light through a mask (11), using light from a short-arc mercury-vapor lamp (1) in a continuously lit state, exposure being effected while the power consumption of the lamp is at a high level with (shutter 4 open) and shifting of the wafer being effected while the power consumption of the lamp is at a low level (with shutter 4 closed), power consumption of the lamp is allowed to reach 95% of the high level value within 1-30 msec. <IMAGE>
Patent GB-2220346-A (GB)
Title: Baking sheet
Inventor: PERKINS DAVID DICKSON
IPC: A21B3/15
Filed: 1988-07-08
Abstract: A baking sheet, or baking sheet material (1), comprises vegetable parchment or grease-proof paper which is silicone coated on both surfaces. To assist in the manual placing of dough or other bakery products for baking the sheet is printed with lines or other makings (6-9) in such a way as to demarcate a plurality of areas indicating positions for the placing of the products on the sheet prior to baking or further processing. The printing may be in vegetable dye, applied to one or both surfaces, in monochrome or colour, and beneath or on top of the silicone coating. <IMAGE>
Patent GB-2221925-A (GB)
Title: Cordless iron
Inventor: BARBER ROGER DAVID LESLIE
IPC: D06F79/02
Filed: 1988-08-16
Abstract: A cordless iron having means for discontinuing the supply of power to the heating element when the temperature is approaching or has reached an upper limit of a range corresponding with a temperature setting, is provided with means for indicating that the iron should be returned to the base unit when its temperature is approaching, or has reached a predetermined lower limit. The indicating means is independently powered from a source within the iron, e.g. a battery. The indicating means responds to either the control means when the temperature of the iron has fallen to a lower limit at which said control means would normally supply power to the heating element, or the iron includes temperature sensing means, such as a thermister, for providing an output to cause the indicating means to indicate that the iron should be returned to the base unit.
Patent GB-2223481-A (GB)
Title: Nestable and stackable containers
Inventor: WILLIAMS DAVID ARTHUR
IPC: B65D21/06
Filed: 1988-10-10
Abstract: A container preferably moulded as one piece in plastics has at each corner 4 an external hollow buttress 5 which provides an interior recess 8 having an upwardly open mouth 9 so that when two containers are nested the buttresses 5 of the upper container are received within the respective recesses 8. Bridging each corner 4 is a flexible strip 10 which is displaceable over a platform 7 from an outer condition which permits nesting to an inner condition for stacking in which the foot 6 of each buttress of an upper container rests on a strip 10 of the lower container. The strips 10 are preferably of corrugated profile and each is displaceable through a dead centre condition between its inner and outer conditions to be biased by its natural resilience to the inner or outer condition as selected. <IMAGE>
Patent GB-2236784-A (GB)
Title: Pathway construction
Inventor: OLDFIELD MAURICE
IPC: E01C5/20
Filed: 1989-10-11
Abstract: A pathway construction comprising a series of individual blocks (11) of expanded polystyrene laid end-to-end along the extent of the pathway, each block having bonded to its upper surface a corrugated plastics sheet (12) which is displaced longitudinally of the polystyrene block (11) thus to lie in overlapping relationship with the next adjacent block (11) in the series. The pathway is completed by a water impervious layer (14) followed by a finishing layer (13) of stone chippings or the like. If required, the edges (15) of the sheet (14) may be buried at the sides of the pathway. <IMAGE>
Patent GB-2241907-A (GB)
Title: Masking
Inventor: O'ROURKE JOHN
IPC: B05D1/32
Filed: 1990-03-15
Abstract: In order to mask part of the surface of an article before painting the article, a ridge (16) is incorporated on the surface (18, 20) of the article at the point where the paint film is to stop. A sprayable maskant (24) is then sprayed over the entire article in such a way that a reduced thickness film layer is formed at the ridge. When the maskant has dried, it can be peeled off from the surface (20) of the article and it will be found that the film on one side of the ridge separates from the film on the other side of the ridge leaving maskant intact and operative on one side of the ridge (16). The article can then be painted before the maskant is removed from the other side of the ridge (16).
Patent GB-2242207-A (GB)
Title: Disposable lavatory seat cover
Inventor: DONOVAN STEPHEN
IPC: A47K13/16
Filed: 1990-03-20
Abstract: A disposable paper lavatory seat cover comprises a substantially annular portion and means for removably attaching said annular portion to a lavatory seat. The annular portion is formed by the removal of a disposable detachable central portion from an integral cover as shown in (fig 1). The disposable cover can be attached and removed by elastic attachments running circumferentially. <IMAGE>