baber/WOPTO huggingface dataset:
Patent GB-2159638-A (GB)
Title: Linear hydraulic actuator system
Inventor: WHITE WILLIAM LEONARD
IPC: F15B15/14
Filed: 1984-05-16
Abstract: A method of operating a hybrid Linear hydraulic actuator system is by coupling an input electro- mechanical system with a hydraulic system so that the two systems perform together to obtain a linear transfer function. An input system utilises a screw to move a screw jack to actuate the load and is provided with a load sensor at the input which gives a signal for a loop, arranged to control a pilot valve to supply fluid pressure to the piston of the jack. When the input is applied the screw is rotated and a signal from the sensor proportional to the load is fed into the loop which causes the valve to control fluid pressure to substantially reduce the load on the screw. This hybrid system can be arranged so that should one system fail the other system will function as a linear system.
Patent GB-2147276-A (GB)
Title: Transportation container with collapsible end walls
Inventor: TOSETTO ERNESTO
IPC: B65D88/12
Filed: 1984-06-13
Abstract: A container for transport of goods has a platform 3 and two end headers 2 which can fold down flat over the platform when the container is not in use. Each header 2 is supported on a pair of spaced levers 7 swinging about pivot axis 5 which are coupled by links 16 to the free ends of a semi-elliptical spring 17 which is held by a bracket 18 on the longitudinal centre line of the platform and whose plane of flexure is parallel to the plane of the platform. Spring 17 counterbalances the weight of the header 2 as it is swung about axis 5. Locking pins 26 with heads 30 serve to secure the headers 2 in the upright working position. <IMAGE>
Patent GB-2143595-A (GB)
Title: Plastics bearing
Inventor: HURLSTONE GRAHAM FRANK
IPC: F16C23/04
Filed: 1984-07-09
Abstract: The invention provides a bearing, or self-aligning bearing of plastics material which can be formed relatively simply by mouldings, extruding, etc. In accordance with the invention, the bearing is formed in one-piece from a plastics material and comprises an inner tubular core part (10) defining a journal bore, and fins (12) extending outwardly, preferably radially, from the core part, at least at the ends thereof, said fins being spaced around the circumference of the core part. For self-aligning bearings, the core part ends and/or the end edges of the fins are spherically shaped (14,15) to correspond with the spherical bearing housing (17). <IMAGE>
Patent GB-2148872-A (GB)
Title: Artificial tooth crown
Inventor: HIRABAYASHI MASAYA
IPC: A61C5/77
Filed: 1984-09-26
Abstract: An artificial tooth crown composed of glass ceramics comprising crystalized calcium phosphate forming essentially apatite which is a main inorganic component of natural bones or teeth. The ceramic is preferably a composition based on SiO2-P2O5-CaO-MgO and CaF2. The artificial tooth crown has superior dimensional accuracy since it is made by conventional precision casting. The tooth crown can be securely adhered by a dental cement such as glass ionomer. Furthermore, the physical properties of the tooth crown are very similar to those of the natural teeth, and the wear caused by the biting motion between the tooth crown and its mating tooth does not differ from that caused by the biting motion between the natural teeth.
Patent GB-2153373-A (GB)
Title: Process for minimizing color formation during base catalyzed ethoxylation of 2- hydroxyethylamines
Inventor: CONNOR DANIEL STEDMAN
IPC: C08G65/26
Filed: 1985-01-29
Abstract: A process for minimizing color formation during ethoxylation of 2-hydroxyethylamines in the presence of a base catalyst is disclosed. The 2-hydroxyethylamines are selected from monoamines, diamines, polyamines and amine polymers. The 2-hydroxyethylamine is reacted with ethylene oxide in the presence of base and in the presence of a color reducing borohydride.
Patent GB-2173527-A (GB)
Title: Adjustable fence
Inventor: BYRNE STEVEN JAMES
IPC: E04H17/14
Filed: 1985-04-09
Abstract: A fence comprises posts B having telescopically fitting portions to allow height adjustment and swivelling and rails H which can be telescopically adjustable and provided with fixing slots. Wire infil G can be stretched between eye bolts and an adjustable tension spring. <IMAGE>
Patent GB-2157639-A (GB)
Title: Loading apparatus
Inventor: UNGER EBERHART
IPC: E02F7/04
Filed: 1985-04-16
Abstract: Loading apparatus for transferring loose mineral material on to a conveyor comprises a loading scoop (1) defining a transfer surface and a pair of pivotable blades (4). Each blade (4) is rotatably fixed to a respective pivot shaft (16), and is drivable in oscillatory manner to and fro over the transfer surface by a respective piston-and-cylinder device (52). Each blade (4) has a substantially triangular cross-section with a loading face extending at a steeper angle to the transfer surface than an opposite face thereof. Each piston-and-cylinder device (52) is detachably mounted, in an easily accessible position, within part of the loading apparatus, and is articulated to the associated blade (4) by a respective lever (39). In one embodiment, each piston-and-cylinder device (52) is positioned inside the loading scoop (1) beneath the transfer surface. Each pivot shaft (16) is mounted, on respective bearing means (23, 24), in a respective installation housing (22), which is insertable into a respective reception opening (30) provided in the loading scoop (1), and is detachably mounted therein. Each blade (4) is detachably rotatably fixed to the free end of the associated pivot shaft (16) protruding from the associated installation housing (22). Alternatively, the blades may be hollow, and house the piston-and-cylinder devices (52). <IMAGE>
Patent GB-2176999-A (GB)
Title: Multiparticulate sustained release medicament
Inventor: DAVIS STANLEY STEWART
IPC: A61K47/48
Filed: 1985-06-22
Abstract: A multiparticulate sustained release drug delivery system, e.g. comprising small tablets contained in a gelatin or other rapidly dissolving capsule, comprises particles containing (a) an ionically charged bioactive ingredient or a salt or ester thereof (b) a release-sustaining and binding medium which is a polymer having an anhydroglucose backbone and (c) an ionic substance having a charge opposite to component (a) or a salt or ester thereof. Component (b) is preferably a hydroxyalkyl alkylcellulose ether or methylcellulose ether and component (c) may be finely divided particles of cross-linked ion exchange resin.
Patent GB-2184130-A (GB)
Title: The use of pyridone methine dyes as semiconductors
Inventor: POSTLE STEPHEN RODERICK
IPC: C09B23/06
Filed: 1985-12-11
Abstract: The use as easily bleachable semi-conductors of the compounds of GB 1278621, i.e. compounds which in one of the possible tautomeric forms are represented by the formula I:   <IMAGE>  wherein X represents a group of the formula:-  -E<1> or -CH=E<2>, wherein E<1> is the residue of a compound which contains a reactive methylene (-CH2-) group and wherein the methine chain present in the dyestuffs is attached to the carbon atom of the said methylene group; E<2> is the residue of a 5- or 6-membered nitrogen containing heterocyclic ring, which optionally forms part of a fused ring system, and which contains a -C=N- or -C=C-C=N- group in the heterocyclic ring and the methine chain present in the dyestuffs is attached to a carbon atom of said group which is in  alpha - or gamma - position to the nitrogen atom of the said group; n is 1, 2 or 3; Z, T<1> and T<2> are each H or specified substituents; and salts thereof.
Patent GB-2173109-A (GB)
Title: Protective respiratory mask
Inventor: CRONJAEGER RALF
IPC: A62B18/04
Filed: 1986-03-21
Abstract: Protective respiratory masks for excess-pressure protective respiratory apparatus have several sealing rims running round the face of the wearer of the mask. It must be guaranteed thereby that no respiratory gas, more particularly respiratory gas with an increased concentration of oxygen, issues out into the open air when there are possible leakages of the sealing rims. In order to check the tightness of the sealing rims, provision is made for at least one of the hollow spaces (4, 7) of the protective respiratory mask, as a control space, to be capable of being linked up with a connecting line (14) which opens out into the environment and which contains a device (3) which indicates flow. A valve (19) may be manually or automatically actuated to pressurise said space to indicate that the flow device (3) is operative. 
<IMAGE>
Patent GB-2174301-A (GB)
Title: Dental treatment
Inventor: CAUSTON BRIAN EDWARD
IPC: A61K6/838
Filed: 1986-04-22
Abstract: Dental cavities may be lined, prior to filling, with a paste comprising an aqueous phase containing Ca<2+>, PO4<3-> and F<-> and having a pH between 5 and 7 and, despersed therein, particles of hydroxy apatite, the surfaces of which have thereon a protective layer of calcium phosphate. The paste becomes unstable in the presence of the dentine of the tooth to deposit a hydroxy apatite layer on the dentine. The paste may be prepared by contacting hydroxy apatite particles with a saturated aqueous solution of calcium phosphate having a pH of between 4.6 and 8.5 whereby a calcium phosphate protective layer forms on the surface of the particles and removing any excess liquid, e.g. by decanting, to give a paste.
Patent GB-2196359-A (GB)
Title: Bivouac tent of bag and canopy
Inventor: PLATTEN DAVID GEORGE MARTIN
IPC: E04H15/02
Filed: 1986-10-18
Abstract: A bivouac tent comprises an envelope incorporating a bag 20 and a canopy 10 constructed from waterproof materials supported and secured when pitched by means of a system of poles and pegs, the canopy being provided with means 15 of adjusting the set when pitched and the bag adapted to be opened or closed at the head and provided with means for releasably securing it to the canopy. The method of securement includes provision for access to the interior of the canopy and therein to the interior of the bag by means of openable panels in the canopy attachable to the bag so as to form an aperture which faces the foot of the bag when secured in an open position. <IMAGE>
Patent GB-2182791-A (GB)
Title: Alarm and signalling systems
Inventor: GOSSLING MARTIN JAMES
IPC: G08B26/00
Filed: 1986-10-23
Abstract: An intruder and/or fire alarm system uses mains-borne signalling between a central control unit (40) and slave sensor units (32). The sensor units are mounted on or adjacent a socket outlet (20) or lighting point (22) and signalling is via the neutral and earth of the mains supply. The control unit cyclically polls the sensor units which respond in turn, and prolonged absence of either a request or a response causes an alarm condition. When transmitting each unit monitors the mains cable to detect interference thereon and in the presence or anticipated presence of interference inhibits transmission. The control unit can be integral with a standard (e.g. 13 amp) plug (Fig. 7) so as to be movable around the installation. To avoid problems on disconnection a double-pole electronic switch is included between the supply and the units which is controlled by a common control unit such as a microswitch on the back of the plug. In the event of failure of the mains supply integrity is maintained by back-up batteries at the units, and battery consumption is minimised at the sensor units by only switching the sensors on when they are polled by the control unit. In normal conditions they are on continuously. A door entry keypad is provided, the keys of which are unidentified until a predetermined portion of the keypad is depressed, whereupon the keys are illuminated to permit entry of an identification code (PIN). <IMAGE>
Patent GB-2192357-A (GB)
Title: Fastener installation apparatus
Inventor: HANNIG JOHANNES
IPC: B21J15/14
Filed: 1987-05-15
Abstract: A multiple head fastener (e.g. blind rivet, screw) installation apparatus comprises four rivet, etc. installation heads 11, 12, 13 and 14. The first head 11 is in a fixed position, and the second and third heads 12 and 13 are adjustable along axes 25 and 26 at right angles 25 to each other and intersecting at the 36 first head 11. The fourth head 14 is adjustable along an axis 27 which is also angularly adjustable in the quadrant between the axes 25 and 26 and also substantially intersects the first head 11. The adjustable heads 12, 13, 14 are secured by reversible clamps 35, 29, 37 slidable along slots 36, 28, 38, slot 38 being provided in an arm 39 pivoted at 41. <IMAGE>
Patent GB-2190336-A (GB)
Title: Improvements in off-the-road vehicles
Inventor: BENSON JOHN ALAN
IPC: B62D33/06
Filed: 1986-11-26
Abstract: An off-the-road vehicle, typically an agricultural tractor, has a cab (10) pivotally mounted on the chassis (12) about a pivot axis (18) extending transversely of the cab at the forward end thereof between the front and rear wheels (16 and 14) of the tractor and in a horizontal plane in or adjacent the horizontal plane containing the centre of gravity of the cab. The cab is also connected to the chassis by gas spring suspension units (22) mounted between rearward corners (24) of the cab and the chassis. In one embodiment of the invention the pivot axis (18) of the cab is fixed relative to the chassis whereas in an alternative embodiment the pivot axis of the cab is movable longitudinally of the chassis against resilient biasing means.
Patent GB-2207558-A (GB)
Title: Perforated printed circuit boards
Inventor: HAMED ABDUL
IPC: H05K1/00
Filed: 1987-07-11
Abstract: Electronic printed circuit wiring board consisting of electrically insulating material (10) bonded on one or both sides with copper or other electrically conducting material. The board is perforated with a matrix of hole (13). The unwanted conducting material can be removed by etching chemically. The connecting tracks can be run down (14) or along (15) hole lines or between them (16). Through connections can be made using pins (17) and components mounted on either side (18). <IMAGE>
Patent GB-2208880-A (GB)
Title: Animal toilet
Inventor: JOHNSON KEITH
IPC: A01K1/01
Filed: 1987-08-20
Abstract: An animal toilet comprising a continuous conveyor (1), drive means (6) for driving the continuous conveyor (1) forward and waste disposal means (9) positioned beneath the continuous conveyor (1). In use, the animal is trained to foul on the upper surface of the continuous conveyor (1), and once it has finished the continuous conveyor (1) is driven round to bring the fouling to the end of the conveyor where they drop off into the waste disposal means (9). A scraper (13) may be provided across the width of the lower run of the continuous conveyor (1). <IMAGE>
Patent GB-2210278-A (GB)
Title: Toy car slot racing systems
Inventor: LAHR ROBERT
IPC: A63H18/08
Filed: 1987-09-29
Abstract: Curved track sections of a toy car slot racing system have a flange 30 narrowing the upper part of the slot 14, to thus retain the enlarged base 31 of a guide member depending from the car. The guide member is releasably and pivotably connected to the car. As shown in figure 5, the guide member is elongated in the direction of the slot. Stops 40, 41, which may be spring arms, coact with part 33 of the guide member to limit pivoting of the car relative to the guide member. Alternatively, the guide member may take the form of a stepped cylinder depending from the car (figures 7-9, not shown). <IMAGE>
Patent GB-2214919-A (GB)
Title: Method for producing destructurized modified starch
Inventor: SACHETTO JEAN-PIERRE
IPC: C08L3/00
Filed: 1988-02-03
Abstract: A method of producing a modified destructurized starch in form of a melt by heating a starch having a water content of 5 to 30 % by weight based on the starch/water composition in a closed volume to elevated temperatures thereby at elevated pressures for a time long enough to form a melt, characterised in that said process is carried out in the presence of at least one organosilane capable of reacting with a hydroxyl group. The method may be effected by conducting the heating referred to above as part of a process of injection moulding, blow moulding, extrusion, coextrusion, compression moulding or vacuum forming to produce articles of modified starch in the form of films, capsules or other shaped forms having water repellant characteristics and useful in applications as carrier for pharmaceuticals or agriculturals.
Patent GB-2215123-A (GB)
Title: Transistor array with polysilicon resistors
Inventor: HUNT ROBERT WILLIAM
IPC: H01L27/06
Filed: 1988-02-16
Abstract: In a transistor array, such as a bipolar analogue array, comprising an array of cells 11, circuit function is determined by a customised resistor pattern. The resistors 16 comprise polysilicon deposited on the array. The transistors have polysilicon emitters and the polysilicon resistors may be formed from materials deposited simultaneously with these emitters. <IMAGE>
Patent GB-2217292-A (GB)
Title: Refuse skips
Inventor: EMSLIE GEORGE
IPC: B65D88/02
Filed: 1988-04-13
Abstract: A refuse skip (10) for land based and offshore operations has end walls (18, 20), at least upper portions (20a) of which are inclined in substantially parallel planes so that a pair of adjacent in-line skips can stand in nested relationship. One end wall of the skip may have its lower half (20b) provided vertically. The skip may have pockets (22) for lift forks, lifting pins and lugs (24, 30, 36), and a tipping bar (28). <IMAGE>
Patent GB-2204473-A (GB)
Title: Agricultural trailer
Inventor: JOHNS DAVID OLIVER VINCENT
IPC: A01K3/00
Filed: 1988-04-18
Abstract: The trailer (for transporting sheep, cattle or the like) has a platform 1 which is adjustable in height between a first operational position in which the trailer can be towed by a tractor and a second operational position in which the livestock can readily step onto said platform from the ground. The platform is rectangular in plan and has a pair of vertical posts 6,7 at edges of the platform; a pair of gates 9, 10 mounted on the posts for pivotal movement between respective dispositions C,D in which they are parallel to one another and A, B in which they converge towards the posts from locations remote from the platform; a pair of fences 11,12 also mounted on the posts, at least one of the fences being pivotal between a first position C parallel to the pair of gates when the latter are parallel, and a second position E, in which the fence is at an acute angle to the first position. A further gate 13 is mounted to one of the posts 7, the further gate being pivotable between a first, open position, and a second, closed position in which the further gate bridges the space between the posts 6,7. A livestock barrier 8 is mounted remote from the posts so as to define (with the parallel gates and the further gate) a quadrilateral. When gates 9,10 are in positions A,B the trailer can be used to trap and handle livestock in the field, eliminating the need for previously confining animals in a yard. <IMAGE>
Patent GB-2217575-A (GB)
Title: Attachment for a used can
Inventor: LI NGAI-KEUNG
IPC: A24F19/00
Filed: 1988-04-20
Abstract: An attachment 1 for a used aluminium drinks can of the ring-pull type comprises inner and outer walls 2, 11 joined by an annular web 9. A tongue 13 depends down from the bottom of the wall 11 and a cutting edge 16 is formed at the radially outer surface of the tongue 13. The attachment is forced on the can end with the tongue 13 projecting into the aperture left by the ring pull. The attachment is then rotated to cut a circular disc from the can end and left in place to form an ashtray, desk tidy, etc. <IMAGE>
Patent GB-2222950-A (GB)
Title: Orthodontic treatment apparatus
Inventor: CLARK WILLIAM JOHN
IPC: A61C7/36
Filed: 1988-05-31
Abstract: An orthodontic treatment apparatus is employed for intrusion of teeth (14, 16) into their respective dental arches (10, 12) for intrusion of a single tooth (14), or for application of anteroposterior forces in the mouth. The apparatus comprises attachment means (18) on the buccal surfaces of selected teeth (14, 16) for each end (22, 26) of an elastic member (20) comprising either a polymer tube or sheathed helical spring. The elastic member (20) lies between the buccal surfaces of the dental arches (10, 12) and the inside of the cheek. Mounting of the ends (22, 26) of the elastic member (20) can be by means of a pin and eye, by means of a wire element, or by means of a bifid tip element. Attachment in each dental arch can be selectively either to single teeth (14, 16) or to plural teeth where intrusion of teeth is not required. <IMAGE>
Patent GB-2209301-A (GB)
Title: Hand tools
Inventor: ALSOP STEVEN CHRISTOPHER
IPC: A01B1/22
Filed: 1988-08-26
Abstract: The invention relates to hand tools and particularly garden tools with detachable tool heads. An elongate handle 1 has socket means 3 formed at one end with catch means 5, 6 provided on the socket means. A tool head 7 has a handle 10 of a cross section to locate within the socket means 3 on the elongate handle. There being a means eg detent 12 on the handle of the tool head to engage with the catch means at 6 provided on the socket means 3 on the elongate handle 1. Thus not only is the connection of an operative end piece to a handle simplified, but also with each end piece provided with its own short handle it can be used in its own right when the use of a long handle is either not required or is inconvenient. <IMAGE>
Patent GB-2222640-A (GB)
Title: A friction clutch cover
Inventor: WARD CHRISTOPHER GRAHAM
IPC: F16D13/71
Filed: 1988-09-09
Abstract: A friction clutch cover (114) is provided which, in use, houses a clutch driven plate of the maximum desired diameter given the constraints of the pitch circle of the fastener holes (6), fig 4. The cover (114) has an axially extending cylindrical sidewall (5) having at one end a flange (7) with the fastener holes (6) therein whereby the cover (114) is secured to a flywheel. The portion of the sidewall (5) adjacent the flange (7) has circumferentially spaced apertures (115) that align with the fastener holes (6) so that the flange portions (7A) adjacent each aperture (115) are open to the interior of the cover to provide a flat clamping seat (116) for a respective fastener head (B), fig 5, and each clamping seat (116) extends radially inwardly at least to the outer circumference of the sidewall (5). <IMAGE>
Patent GB-2223869-A (GB)
Title: Alarm system
Inventor: GERAGHTY PATRICK THOMAS
IPC: G08B25/01
Filed: 1988-09-12
Abstract: Apparatus for transmitting alarm signals originating within a monitored area comprises a plurality of local transmitters for installation in suitable positions in the area. Each local transmitter transmits a local signal including a unique identity code for the transmitter. Alarm units carried by personnel each include means for receiving the local signals when within range thereof, storage means for storing the unique identity code of the last encountered local transmitter together with at least one further code transmitted by a local transmitter (e.g. the identity code of the last-but-one encountered), and means for transmitting an alarm signal that includes the stored codes for reception by a central receiver. This permits accurate location of the personnel. <IMAGE>
Patent GB-2224128-A (GB)
Title: Treating processed photographic film material
Inventor: FIELDING ROSS
IPC: G03C11/08
Filed: 1988-09-13
Abstract: A method of treating processed photographic film material which comprises applying to both faces of the processed film material an aqueous solution of copolymer derived from an ethylenically unsaturated carboxylic acid and a vinyl sulphonate where the numbers of units in the copolymer derived from the carboxylic acid is from 10 to 90%. The preferred copolymer is derived from acrylic acid and sodium vinyl sulphonate where 80% of the units are derived from acrylic acid and is preferably added to the final rinse bath. This treatment reduces the electrostatic charge on the film material.