baber/WOPTO huggingface dataset:
Patent GB-2170190-A (GB)
Title: Phosphate-bonded magnesium silicates
Inventor: LALANCETTE JEAN-MARC
IPC: C04B35/63
Filed: 1986-01-23
Abstract: There is provided a shaped three-dimensional calcined phosphate-bonded magnesium silicate comprising the shaped reaction product of phosphoric acid with a natural magnesium silicate selected from uncalcined magnesium silicate and magnesium silicate tailings which have been calcined at a temperature of from 800 to 1300 DEG C, provided that the reaction product of phosphoric acid with uncalcined magnesium silicate has been calcined at a temperature of from 800 to 1100 DEG C while shaping, the selected magnesium silicate having an aspect ratio l DIVIDED d >/= 500 wherein l is the average length and d is the average diameter of the selected natural magnesium silicate particle. The products are useful as insulating products, firewall and casting products and dielectric products depending on the amount of each starting material used and are further characterized by being asbestos-free. <IMAGE>
Patent GB-2187492-A (GB)
Title: Demountable mini crane
Inventor: AL-SHAWI DR AIAD ABDUL-NABI
IPC: B66C23/48
Filed: 1986-03-07
Abstract: A demountable mini crane has two legs 1 and 2 forming the base 3, which is supported by three wheels 4. There are two supports 15 and 16 interconnected to the base 3 near the open ends of the legs. The body 5 comprises two parts 6 and 7, interconnected to the base 3 and to the arm 9 respectively. The body and the arm are supported by the movable supports 8 and 10 respectively. A cord 12 is connected to winding gear 14 at one end, and to a hook 13 at the other. The demountable mini crane can be used to lift the wheel of a vehicle into or out of the boot, or it can be used to lift and move heavy objects around the house. The crane can be converted to be used as a triangular warning sign by rearranging the connection of its parts. <IMAGE>
Patent GB-2177548-A (GB)
Title: Apparatus for handling a card-like substrate
Inventor: MATSUI KAZUHIRO
IPC: B25B27/14
Filed: 1986-05-12
Abstract: Apparatus for handling a printed circuit board comprises a body 1 provided with a channel 2 for receiving an edge of a p.c.b. 40; a moveable part 5 connected to the body 1 by a hinge 6; and a pin 7 mounted on the part so that movement of the part 5 causes the pin 7 to be inserted in an aperture 8 in the body 1 and a corresponding aperture in the p.c.b. The part 5 also has a latch 9 which can be forced into a retaining portion 10 of the body 1 to secure the pin 7.   <IMAGE>
Patent GB-2193905-A (GB)
Title: Filter sleeves
Inventor: HEATH CLIVE ANTHONY
IPC: B29C65/36
Filed: 1986-08-16
Abstract: A filter sleeve of cloth is attached to an end ring, which is made of a thermoplastic, by a layer of bonding agent interposed between the cloth and ring and comprising a mixture of thermoplastic material and a ferrous metal powder which is fused to bond by induction heating, so that the heating is concentrated in the metal powder and this avoids risk of damage to the cloth or ring. The cloth can be located in a groove in the ring or on a flange thereof. The sleeve serves as a component in a tube filter press.
Patent GB-2180278-A (GB)
Title: Elastically compressible suspended beam, bending over the length
Inventor: DAHNE ROLF
IPC: A63B4/00
Filed: 1986-09-12
Abstract: A suspended beam comprising a basic beam (1) on which a footboard (8) is supported via an elastically compressible spring means (9) and vertically guided along the basic beam by means of narrow leg strip (7). In this arrangement it is desirable that the elastic characteristics of the suspended beam should be more uniform over the length. This is achieved in the invention due to the fact that the narrow leg strip (7), which is rectilinear in the vertical direction, engages in a groove (6) of the basic beam (1) and comprises longitudinally spaced gap-forming cut-outs (16) extending upwards from its lower free edge. The tooth-like subdivided region of the leg strip is held together in the groove and renders the leg strip and the footboard elastically bendable over the length thereof. <IMAGE>
Patent GB-2180244-A (GB)
Title: Thermoplastic dental filling composition
Inventor: FUTAMI SHUNICHI
IPC: C08K3/00
Filed: 1986-09-12
Abstract: A thermoplastic dental filling composition is disclosed, comprising a polymer component containing trans-1,4-polyisoprene and an ethylene/vinyl acetate copolymer resin and an insoluble or sparingly soluble inorganic filler. The filling composition of the invention has similar softening operation properties to natural guttapercha and has a high tensile strength and, therefore, it can be suitably used as a root canal filling material. Further, a composition comprising the above-described dental filling composition having a wax-like component added thereto is used as a temporary filling material.
Patent GB-2180351-A (GB)
Title: Capacitive mask aligner
Inventor: NEUKERMANS ARMAND P
IPC: G01D5/241
Filed: 1986-10-07
Abstract: An aligner for aligning a mask and a wafer 3 during photolithography of a semiconductor chip uses detection of the differential capacitance between two interdigitated set of conductive fingers 21,25 on the mask, and a set of ridges on the wafer. An A.C. signal is coupled between the ridges and fingers and the degree of coupling for the two sets of fingers is detected and compared. A conductive shield overlies the common sideline of each set of fingers, spaced therefrom by an insulating layer, to ensure that coupling occurs only between desired portions of the ridges and the fingers. <IMAGE>
Patent GB-2199543-A (GB)
Title: A floating platform
Inventor: RUDD EDWARD LESLEY
IPC: B63B1/04
Filed: 1987-01-07
Abstract: A device for use as a plaything in water or as a sporting article, such as a sledge, comprises a round platform comprising a foamed plastics core covered by a fibreglass skin. The platform has domed upper and lower surfaces 2 and 3 and one of the surfaces has a pair of parallel depending shallow fins 4 and 5. <IMAGE>
Patent GB-2195096-A (GB)
Title: Non-polluting method of burning fuel for heat and CO2
Inventor: MOSS GERALD
IPC: C01B32/50
Filed: 1987-01-07
Abstract: A non-polluting method of, and apparatus for, burning fuel to produce heat and a CO2-rich hot flue gas stream is described. Fuel (e.g., coal, oil, gas, wood, inter alia) is passed into a gasifier bed (12) containing particles of calcium sulfate and, optionally, calcium oxide. Bed 12 is fluidised by product gas containing an oxygen-transfer mediator (or source thereof) such as hydrogen, and fuel is partially oxidized to gas-phase products including CO and CO2 at a temperature above the carbonation temperature of calcium oxide, calcium sulfate being reduced to calcium sulfide. The gas-phase products are passed into the base of a combustion bed (28) containing particles of calcium sulfate in the presence of an oxygen-transfer mediator and CO is oxidized to CO2 at a temperature above the carbonation temperature of calcium oxide. Calcium sulfide-containing particles from the gasifier and combustion beds (12 and 28) are fluidized by an oxidizing gas (e.g. air) in respective oxidation beds (42, 45) and CaS is exothermically oxidized to CaSO4 for re-use. <IMAGE>
Patent GB-2204225-A (GB)
Title: Footwear
Inventor: DREW JOHN ALAN
IPC: A43B23/02
Filed: 1987-04-06
Abstract: The upper 2 has hollow passage 14 which extends along the topline 3 and which is open at its ends 14 in the region of facings 7 with eyelets 16. A lace 8 is threaded through the passage 14 and the eyelets 16. The facings 7 extend above the topline 3 and each have an eyelet in this region. The spacing d of the eyelets 16 from the medial edge 17 of each facing 7 is at least 1 cm. The facings 7 can be cut with scissors to suit the wearer's foot. Stiffening reinforcements 9, 11 made of a resilient cross-linked polyethylene are adhesively bonded respectively inside the toe region and the heel region of the upper 2. The footwear includes a sole 1 (e.g. of polyurethane or rubber) bonded to the upper 2. A middle sole 6 is also provided. <IMAGE>
Patent GB-2191242-A (GB)
Title: Window fastener
Inventor: DOUGLAS JACK ERNEST
IPC: E05B13/00
Filed: 1987-05-22
Abstract: A window fastener 1 having a lever handle assembly 2 comprising a base plate 6, a lever handle 8 mounted on the base plate 6 for pivotal movement about a pivot axis at one end of the handle 8 between fastened and unfastened positions for engagement and disengagement with a keeper 3 and, a security device 10 for securing the handle 8 in the fastened position. The security device 10 comprises a key-operated retractable bolt 17 movable parallel to the pivot axis to engage an aperture 9 in the other end of the handle 8 remote from the pivotted end and prevent pivotal movement of the handle 8. The bolt 17 is mounted in an upstand 11 integral with the base plate 6 thereby ensuring accurate alignment with the aperture 9 in the fastened position in which the apertured end of the handle 8 is received in a recess 19 in the upstand 11 to prevent upward movement of the handle 8. <IMAGE>
Patent GB-2205812-A (GB)
Title: Making sacks
Inventor: ORAM JOHN ERNEST
IPC: B65D30/08
Filed: 1987-06-18
Abstract: A multi-ply sack is formed from superimposed blanks 1,2, fig 2 having stepped (3,4,11,12) end edges provided with tabs 9,10,16 and side folds SF,CF. The blanks are pasted at 29,30,31 and folded at SF,CF, fig 3, so that tabs 9,10 adhere together and the piles form tubes. Paste (32, fig 5) is applied to the projecting ends of the blanks between the steps and to tab 10, and the blanks are folded at EF, fig 4, to close the end. The end may be opened by pulling tabs 16,10 and breaking adhesive bond 29. The sack may be single ply. <IMAGE>
Patent GB-2200682-A (GB)
Title: Vehicle door latch mechanism
Inventor: WARD MARCUS JOHN SCOTT
IPC: E05B65/20
Filed: 1987-07-20
Abstract: The latch mechanism is constructed so as to prevent a locking lever 24 being set to its locked position whilst the door is standing open. When the door is open, a lobe 46 on a latching pawl 20 falls into path of movement of a projection 48 on the locking lever 24 to prevent movement thereof to the "door locked" position. The mechanism has a claw 14 rotatable to capture a detent on vehicle bodywork. Claw 14 is engagable by a pawl 20 influenced by a release lever 22. When locking lever 24 is in its unlocked position the release lever 22 can be moved to lift pawl 20 away from claw 14. When the door is open, space 18 is open to slot 12 and pawl 20 is held in its raised position by abutment with claw 14. <IMAGE>
Patent GB-2211549-A (GB)
Title: I.C. engine cylinder head rotary valve
Inventor: KEEN WILLIAM CHARLES PEARSON
IPC: F01L13/00
Filed: 1988-03-09
Abstract: A valve shaft 1 has a plurality of circumferentially-extending grooves 11-15 along its length. Grooves 11, 13, 15 are always open to respective inlets 6, 7, 8 and grooves 12, 14 are always open to respective exhaust outlets 9, 10. The grooves open to a series of channels (16, 17, Fig. 6) which open at the periphery of the valve shaft through ducts (16A, 17A) at respective locations spaced from the circumferential grooves. The ducts communicate periodically with the cylinders during valve shaft rotation at one sixth crankshaft speed. The valve shaft may be surrounded by angularly adjustable tubes (26, Fig 5) to vary valve timing. The valve shaft may be formed of a plurality of units mounted on a tubular shaft (25, Figs. 9 and 10). <IMAGE>
Patent GB-2219812-A (GB)
Title: Attack resistant building
Inventor: EYTAN RUBEN
IPC: E04H9/10
Filed: 1988-05-25
Abstract: A building hardened to resist attack as by explosive and/or weaponery, includes a plurality of concrete walls, at least one of the walls having an inner layer of sheet material as steel plate 20 attached, as by brackets 22 to reinforcement 23 within the concrete. <IMAGE>
Patent GB-2213605-A (GB)
Title: Optical isolator
Inventor: MOZER ALBRECHT
IPC: G02B6/42
Filed: 1988-12-02
Abstract: An optical isolator (6) for a semiconductor laser (2) for use in an optical communication system consists of a polarizer (4) and a birefringent medium (5). An electric field is applied to the birefringent medium (5) via electrodes (7) for varying the indices of refraction of the birefringent medium (5). 
<??>By the variation of the indices of refraction, the optical isolator (6) can be adapted to different light wavelengths. 
<IMAGE>
Patent GB-2226073-A (GB)
Title: Attachment clips for portable radio receivers
Inventor: PETERS PETER
IPC: G08B3/10
Filed: 1988-12-14
Abstract: An attachment clip 10 for a portable radio receiver such as a paging receiver is pivotably mounted under spring bias by a pivot mounting 12 on a receiver housing 14. The clip 10 includes an adjustable grip arrangement in the form of a manually adjustable slider 20 arranged to bear on a spring plate 24 biased away from the housing 14. The spring plate 24 carries a rubber grip 26 at its free end, so that sliding movement of the slider 20 along an opening 22 progressively urges the grip 26 on the spring plate 24 towards the housing 14, and thus, when material is sandwiched between the grip 26 and the housing 14, increases the spring pressure applied thereto. Different thicknesses of, for example, pocket material, and also belt mounting, can be catered for by virtue of the adjustable grip arrangement. <IMAGE>
Patent GB-2227704-A (GB)
Title: Blow-moulding fishing floats
Inventor: DRENNAN PETER JOHN
IPC: B29C49/48
Filed: 1989-02-03
Abstract: A blow moulded fishing float bulb, Fig. 1, is manufactured in a two part mould, Fig 3, which defines one or more cavities 14. A tubular parison P is inserted, the mould closed and gas introduced to expand the parison to take the shape of the cavity. The cavity includes a shallow recess 18 for the material to be compressed therein as the mould parts are closed together thereby to form an integral solid projection 3 on the finished bulb. This projection receives an eye connector, Fig. 2 (not shown), or alternatively the projection could be at the upper end of the bulb for receiving a float stem or antenna. <IMAGE>
Patent GB-2216408-A (GB)
Title: Electrically heated vehicle seat
Inventor: ERIKSBERG STEN BENGT GUNNAR BE
IPC: A47C7/74
Filed: 1989-03-06
Abstract: An electrically heated vehicle seat (1) comprises cover fabric portions (5, 6), heating element (7) and padding (4) sewn together with a plurality of first seams (11-16 and 21-26) and second seams (10, 19, 20, 29). The heating element has heating portions separated from each other by the first seams and communication portions which electrically connect to each other the heating portions which have been separated by the first seams. The first seams are sewn through the heating element without crossing the heating portions or communication portions. The second seams are not sewn through the heating element and neither are they sewn through the padding. 
<??>The invention also relates to a method of manufacturing an electrically heated vehicle seat, where cover fabric portions are sewn together with the heating element and padding using a plurality of seams. First seams are sewn through cover portions, heating element and padding, such that they do not cross the heating portions or communication portions in the heating element. Second seams are sewn solely through cover portions so that they cross or extend adjacent to the first seams in the vicinity of their ends. 
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Patent GB-2229131-A (GB)
Title: Coating electric conductors
Inventor: MURPHY RICHARD JOHN
IPC: B29C48/05
Filed: 1989-03-17
Abstract: An electric conductor, especially a high-voltage overhead cable, is coated with a plastics layer either: (i) by reactive extrusion, mixing two mutually reactive fluids and injecting the mixture into the extrusion die, or (ii) by extruding a low-molecular weight, relatively fluid coating around the conductor and subsequently cross-linking it with U-V (ultraviolet) radiation.
Patent GB-2217252-A (GB)
Title: Adjusting separate extension channels, to maintain a constant total flow rate from a single extruder
Inventor: LLOYD EDWARD THOMPSON
IPC: B29C48/06
Filed: 1989-04-04
Abstract: In a process for extruding two layers of the same material simultaneously from a single extruder (2), the material is fed to the extruder head through respective flow channels (3, 4) incorporating plate valves (11, 12) for enabling the flow rates of the material in the channels to be adjusted in opposite senses to each other, in a manner such as to maintain the total flow rate of (11, 12) are disposed in the respective channels at 90 DEG  to each other, mounted for simultaneous adjustment to a common manually actuated shaft (10), which is provided at its actuating end with an indicator (not shown), and is positively fixed by a pin (27). <IMAGE>
Patent GB-2234649-A (GB)
Title: Personal communications systems
Inventor: RAMSDALE PETER ALAN
IPC: H04W76/02
Filed: 1989-04-27
Abstract: In a system which enables both pocket/portable radio transmitter/receiver personal terminals and subscribers (2) of a fixed switching network 1 to initiate calls to the other, in contrast to the Telepoint system in which only the personal terminals within microcells 4 can initiate calls, voice traffic between the personal terminals and the network subscribers is via first communication means 5a, as is call set up from personal terminals to network subscribers. Calls initiated by network subscribers to personal terminals are offered thereto via separate communication means 6a by the transmission of paging signals (from a district manager controlling at least one microcell) which are appropriate to the location of the personal terminals. The required personal terminal then sets up the call through a microcell base. Location information is stored in a directory 10 and updated by signals output from a personal terminal when it perceives it has moved for example into or out of a particular microcell 4 and/or district cell 3. A gateway 8 may store voice messages for personal terminals outside any microcell for subsequent retrieval. <IMAGE>
Patent GB-2234323-A (GB)
Title: Friction clutch driven plates
Inventor: CURTIS ANTHONY JOHN
IPC: F16F15/123
Filed: 1989-07-21
Abstract: A friction clutch driven plate having a friction facing carrier (14) mounted on a hub (11) with torsion damping springs (15, 48) operating in two stages to resist rotation of the carrier (14) around the hub (11). A friction damper (52, 42) operates during the initial damping phase together with first stage torsion damping springs (48). The friction damper comprises a flange plate (43) rotationally fast with the hub(11), a pair of side plates (41, 42) fast with the carrier (14) and located on each side of the flange plate (43), and a friction plate (52) located between the flange plate (43) and one of the side plates (42). The friction plate (52) is free to rotate relative to the other plates (41, 42, 43) and is biased into frictional engagement with the side plate (42) to generate the friction damping. The plates (41, 42, 43) also house the springs (48) and form part of the first stage torsion damping means. <IMAGE>
Patent GB-2238403-A (GB)
Title: Motor control.
Inventor: CLEWS JOHN COLIN
IPC: H02P3/00
Filed: 1989-09-29
Abstract: A method of producing a drive in accordance with a predetermined law of motion, such as a cycloidal law, for a body linearly driven by an electric motor, according to which, during deceleration of the motor (10) to a stopped condition, a speed-determining parameter of the energising current supplied to the motor is incremented to reduce the motor speed in accordance with the predetermined law and in dependence on a sequence of digital values read out from a memory device (18), the reading out of the digital values is sequenced by an encoding device (28) itself driven responsively to rotation of the motorshaft, the encoding device being preset to match the reading out of the final digital value to the position of the driven body at which the motor is to be stopped, and when the digital value representing zero velocity is read out the motor comes to rest and a brake (30) is applied.
Patent GB-2237369-A (GB)
Title: A multicolour lamp
Inventor: WAYTE RICHARD CHARLES
IPC: B62J6/20
Filed: 1989-10-26
Abstract: A multi-colour lamp in which a centrifugal/inertial switch activated by rotation/acceleration causes battery driven coloured light-sources to illuminate.
Patent GB-2227135-A (GB)
Title: Motor vehicle heater with monitor for fan motor
Inventor: STEIERT EDWIN
IPC: F23N5/24
Filed: 1989-11-16
Abstract: In an independent heater for a motor vehicle, a combustion control is carried out in order to stop the supply of fuel within a certain period of time after a possible interruption of combustion has been ascertained by sensing low temperature at the heat exchanger or at the combustion chamber. In order to respond correctly, the fan electric motor for the combustion air or the heating air passing across the heat exchanger must be monitored constantly. Monitoring the operation of the fan motor M takes place by brief interruption of the voltage supply 5 using switches 2, 3 and measuring the generator voltage produced by the motor which continues to rotate. If no generator voltage exists, or if this is too low, then a fault indication is produced, warning that the fan is stopped or rotating too slowly. 
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Patent GB-2227031-A (GB)
Title: Surface treated sliding or rolling contact element and rolling bearing
Inventor: MASAMI SASAKI
IPC: F16C33/12
Filed: 1989-12-01
Abstract: An element suitable for sliding-contact or rolling-contact, has a surface covered by a film of a 0.05 mu m to 0.5 mu m thickness of reaction product by a chemical treatment. The element has a low friction property, low wear property, improved load carrying capacity and improved seizure resistance. The reaction product film may be a metal phosphate, a metal sulphide, a metal chloride and may be formed by reaction at the surface with at least one of organophosphorus compounds, organosulphur compounds, organochlorine compounds and organometallic compounds. In specific examples the following treating solutions are used:- tridecyl acid phosphate (1, 2, 3); zinc hydrozarbyl dithiophosphate (4); tert-octyl disulphide (5); n-octyl chloride (6); a mixture of trioctyl phosphate, tridecyl acid phosphate and di-tert-octyl disulphide (7).
Patent GB-2238680-A (GB)
Title: Sound level control equipment
Inventor: WATTERTON NIGEL
IPC: H03G3/32
Filed: 1989-12-01
Abstract: Automatic level control equipment, for example for a coin-operated music system, has a sound level adjusting device, such as a variable resistance device (30) interposed between amplifier inputs (23) and outputs (24) for sound reproducing apparatus, such as loudspeakers. The resistance (30) is adjusted by control circuitry (28) to compensate for changes in the level of background noise picked up by a microphone (22). The control circuitry (28) has microphone monitoring filters (25) and amplifier output monitoring filters (27) operable at different frequency bands so that background noise can be monitored at different frequency bands, depending on the frequency distribution of the sound output of the amplifier. If the amplifier has a sound output in the same frequency band as that being monitored in the background noise, the circuitry can switch to a different monitored frequency band of background noise. <IMAGE>
Patent GB-2230351-A (GB)
Title: Non-misting mirror assembly
Inventor: O'KANE THOMAS GERARD
IPC: G02B7/18
Filed: 1990-01-24
Abstract: A portable non-misting mirror assembly comprises a mirror (10) and a refillable hot-water container (12). The container (12) is positioned at the reverse side of the mirror (10). The container (12) is so insulated to direct heat from any hot-water in the container (12) onto the reverse side of the mirror (10). The container has a closable inlet/outlet (28). The assembly is free standing, wall-mountable or supported on a stand.