baber/WOPTO huggingface dataset:
Patent GB-2192643-A (GB)
Title: Method of coating refractory vessels with boron nitride
Inventor: SCHLEICH DONALD M
IPC: C30B25/08
Filed: 1986-10-23
Abstract: Refractory, eg quartz, vessels are coated with a thin layer of boron nitride, such that the vessels may be repeatedly used as containers for the growth of high purity gallium arsenide crystal. The boron nitride coating prevents the incorporation of silicon, as well as other impurities, within the crystal. The boron nitride coating may be applied either by chemical vapour deposition or plasma spraying. In chemical vapour deposition, a gaseous active nitrogen compound and a gaseous boron-containing compound are passed over the vessel within a heated deposition reactor. Suitable reactants as the nitrogen compound are (CH3CH2)3N, NH3 whilst as the borin-containing compound BCl3, (CH3CH2)3N:BH3, B2H6 may be used. In the plasma spraying embodiment boron nitride particles of approximately 325 mesh into said plasma spray and repeatedly spraying the quartz vessel so as to develop a boron nitride coating of 3 to 5 microns. The method of growing gallium arsenide crystals within a boron nitride coated boat comprises:- a) filling the hot end of the boat with pre-melted gallium arsenide; b) supporting a gallium arsenide seed crystal at cold end of said boat; c) placing said boat within a vacuum furnace; d) sealing said furnace, while drawing a vacuum; e) maintaining a cold zone within the furnace at the arsenic boiling point while gradiently heating the boat, such that the gallium arsenide at the hot end is maintained is maintained in the molten state at approximately 1255 DEG C and the gallium arsenide seed at the cold end remains solid at approximately 1237 DEG C, and f) gradually freezing the molten gallium arsenide. This method is illustrated in Fig. 2 where the BN coated boat 40 is filled with GaAS together with a seed crystal 52, inserted into a quartz tube 42 which is placed inside a furnace. <IMAGE>
Patent GB-2183570-A (GB)
Title: A two-axis adjusting mechanism of a flying body
Inventor: STEUER RAIMAR
IPC: F42B10/62
Filed: 1986-11-13
Abstract: A two-axis adjusting mechanism, for pitch and yaw adjustment of a flying body (1), wherein, at the tail of the flying body (1) a single control body (2) mounted so as to be radially displaceable and rotatable on an adjusting device (3). The adjusting device (3) moves the control body (2) initially in one direction of movement and after that in the same plane of movement in the other direction of movement, so that the control body finally protrudes eccentrically beyond the contour of the flying body (1) at the desired radial or peripheral position. <IMAGE>
Patent GB-2185735-A (GB)
Title: Chute
Inventor: PATEMAN ROBERT HENRY
IPC: B65G11/14
Filed: 1987-01-08
Abstract: A chute 3 for use, e.g. in conveying old tiles from a roof, comprises a plurality of elongate flat-bottomed chute members 4, 5 and 6, each adapted to be supported between the stiles of a ladder 1, with an end of a chute member 4 or 5 being received within an end of an adjacent chute member 5 or 6. Each chute member is attached to the ladder, by a hook 9 (Fig. 2, not shown) engaging a ladder rung 2. In figure 1, the chute members 4, 5 and 6 are shown as of different widths so that a series of members may be telescoped one within another, but in an alternative, the chute members may have sidewalls diverging from the base, so that each chute member may be of the same dimensions in cross section. The invention further provides a chute having a resiliently mounted tray 11 at a lower end thereof. The tray 11 has a rubber mat or other resilient material in its base. The tray 11 and the associated chute member 6 have means for guiding the tray 11 in the chute member 6,and spring means 15 urges the tray 11 in an upward direction and extends as a roof tile or the like slides into the tray, thus helping to absorb the momentum of the tile. <IMAGE>
Patent GB-2200176-A (GB)
Title: Rail vehicle braking
Inventor: GAYFER JOHN ROLAND
IPC: B60T7/12
Filed: 1987-01-20
Abstract: A rail vehicle for use in a mine working has a speed-responsive device for operating a braking system of the vehicle. This device comprises a weight (17) pivotally mounted in a recess (11) of the wheel and a pin (21) which normally lies entirely within the wheel but is caused to project axially from the wheel when the speed of rotation of the wheel exceeds a threshold value. A projecting end portion of the pin engages member (25) to rotate shaft (24) and thus operate a hydraulic or pneumatic valve or electric switch (23) of the brake system. <IMAGE>
Patent GB-2186481-A (GB)
Title: Kit for assembling a frame for a hammock or the like
Inventor: JONES STUART EDMUND
IPC: A45F3/24
Filed: 1987-01-27
Abstract: The kit for assembling a frame for a hammock (5) or the like comprises elongate members (1) and joints (2,3) adapted to fit together securely and releasably to form a frame having a frame base portion for standing on the ground or floor, an upstanding frame stabilising portion and means (4) intermediate of the base portion and the top of the upstanding frame portion for mounting a hammock (5) or the like. <IMAGE>
Patent GB-2193478-A (GB)
Title: Cavity wall injecting machine
Inventor: BURTON JOHN ARTHUR
IPC: B65G53/40
Filed: 1987-06-12
Abstract: There is disclosed a control arrangement for a cavity wall insulation injecting machine having a shredding arrangement 11 delivering into a rotary air lock 12 supplied with air through a line from a blower 14, the control arrangement comprising valve means 22, 23 in said line adapted to switch air between the air lock and exhaust 29. <IMAGE>
Patent GB-2208867-A (GB)
Title: Formulation of biologically active surface coatings
Inventor: JONES R JAMES ALFRED
IPC: C09D5/00
Filed: 1987-08-21
Abstract: This invention relates to the formulation of a substance to improve the visual appearance of new stone, concrete, brickwork and roofing tiles. The formulation is designed to give: a weatherproof coating and colouration to the masonry surface to match the ambient surroundings and the subsequent natural effect to be achieved, and the promotion of the growth of natural microflora such as algae, fungi, mould and lichen by providing a nutrient containing substrate, and initiation of the growth of such micro-flora by incorporation of freeze dried spores, seeds and cells of the principal species, to give the desired natural effect.
Patent GB-2200501-A (GB)
Title: Electric motor with protective switch insensitive to vibration
Inventor: POPELT BERNHARD
IPC: H02K11/25
Filed: 1988-01-21
Abstract: An electric motor comprises two salient stator poles (1) which carry a winding and the gap between which is closed off by an inserted cover member (6). A protective switch (3) associated with the field winding is inserted between reinforcing ribs (7) of the cover member, such ribs extending in axial direction of the motor, and is fixed therein by means of a wedging element (9) in a predetermined position orienting the direction of movement of the switch contacts radially to the axial direction of the motor so as to render the contacts insensitive to stator oscillations about the stator axis. <IMAGE>
Patent GB-2202248-A (GB)
Title: Insulating board with raised rib on one face at the periphery
Inventor: NASH JOHN JOSEPH
IPC: E04C2/20
Filed: 1988-02-05
Abstract: A board 10 of thermal insulating material for use in a cavity wall is of substantially rectangular shape and has on at least one side 11 thereof a raised rib 12 which extends around the periphery of the board at or adjacent the edges 13 to 16 thereof. <IMAGE>
Patent GB-2215347-A (GB)
Title: Isolators
Inventor: COLES TIMOTHY PAUL
IPC: C12M1/00
Filed: 1988-03-14
Abstract: Bubble isolators incorporate inside themselves on their floor one or more tray of some suitably strong or tough material, such as polyethylene or stainless steel. However, the size of each tray is limited by the size of the bubble's hatch-way, and the whole is necessarily rather difficult to clean in situ, especially underneath each tray, by the normal sterilizing methods. The invention comprises a modified construction of isolator with a two-part structure, having a canopy (12) and a tray-like base (11), and that the two be detachably sealed to each other around their respective perimeters to produce the isolator, the seal being secured by a special long but flexible clip-like device (17). <IMAGE>
Patent GB-2215922-A (GB)
Title: Electrical and mechanical arrangement of printed circuit boards for an array of fluorescent tubes
Inventor: BRETT MICHAEL ANTHONY
IPC: H05B41/24
Filed: 1988-03-24
Abstract: Printed circuit boards 5, 6 mounted at respective ends of a backplate (10), (Fig 1), support fluorescent tubes 1 to 4 and also support respective high frequency electronic ballast drive circuits 50, 60. When the tubes have struck, circuit 50 energises tubes 3, 4 via h.f. ballast inductor 53, 54 and circuit 60 energises tubes 1, 2 via h.f. ballast inductors 61, 62, current return from the ends of the tubes remote from the respective cicuits 50, 60 being via a common return wire 9. The wire 9 may be omitted if one wire of each of the mains supply cables 7, 8 is connected to the return line of the corresponding circuits, 50, 60 prior to lamp starting, circuit 50 energises the adjacent end heaters 15, 25, 35, 45 of all the lamps 1 to 4 and circuit 60 similarly energises heaters 16, 26, 36, 46, the inductors 53, 54, 61, 62 forming series resonant circuits with starting capacitors 51, 52, 63, 64 respectively. <IMAGE>
Patent GB-2207640-A (GB)
Title: A combined housing and applicator for cosmetic or other materials
Inventor: MANSFIELD DAVID ERNEST
IPC: A46B11/00
Filed: 1988-07-19
Abstract: A combined housing and applicator for cosmetic or other materials comprises a cartridge 32 containing the cosmetic or other paste-like material and having a delivery outlet 38 at one end and a piston plug element 36 at the other, the piston plug element having a sealing relationship with the side wall 35 of the cartridge 32 so that as it is moved along the cartridge 32 so that as it is moved along the cartridge 32 it causes the paste-like material to be expelled through the opening 38 for application, and means 25, 26, 27, 28 for attaching the cartridge 32 to an applicator mechanism 12-24 selectively operable to cause the piston to advance along the cartridge whilst retaining the cartridge in place, the assembly comprising the cartridge and the applicator being so shaped that it can be held in one hand for the application of cosmetics, or provided with a brush head (52; Figure 4) for the dispensing of toothpaste through the delivery outlet 38. In a second aspect (Figure 4), a combined housing 20 and applicator, in which the outlet nozzle has an associated brush 53 through the bristles of which the paste-like material can be dispensed, is claimed per se. <IMAGE>
Patent GB-2209371-A (GB)
Title: A control system for a bladed rotor assembly
Inventor: POUCHER MICHAEL
IPC: F02C7/36
Filed: 1988-11-11
Abstract: The counterrotatable bladed rotor assembly is driveable by a rotatable shaft 17 and comprises: - a leading propeller 12; - a trailing propeller 13; - an epicyclic gearbox 14 located between the leading and trailing propellers; - a first fluid pressure operable actuator 34 to vary the pitch of the blades of the leading propeller 12; and - a second fluid pressure operable actuator 35 to vary the pitch of the blades of the trailing propeller 13.   The actuators 34, 35 are connected to a source of fluid 101, 100 under pressure via an overspeed governor 102, electrohydraulic valves 110, 111, passages 63, 64 follow-up valve means 50, 62, 65, 66, and passages in actuator tubes 54, 55. An electronic control unit 115 controls valves 111, 110 in response to a desired signal representative of either pitch or speed and set by a pilot operated control 60 or 52, and feed back signals derived from either speed sensors 108, 109 or pitch sensors 116, 117. By adjusting a tube 50 of the follow-up valve means, the pilot can vary the range within which the propeller pitches can vary. A dump valve 112 and non-return valves 106, 107 are also provided. <IMAGE>
Patent GB-2213167-A (GB)
Title: Deposition of materials on to substrates
Inventor: TALIM SUNIL PANDHARINATH
IPC: H05K3/10
Filed: 1988-12-05
Abstract: A localised charge pattern is written on the surface of an insulating substrate (1) using an electron gun (3, 4, 5, 6). Subsequently, a metallic layer is preferentially deposited on the charged regions by means of a vaporising filament (7).
Patent GB-2220088-A (GB)
Title: Electronic tap changer for discharge lamp
Inventor: GREEN VERNON JOHN
IPC: H05B41/40
Filed: 1988-12-12
Abstract: The voltage drive for a high intensity discharge lamp 70 is adjusted to compensate for variations in mains voltage by comparing 40 the mains voltage with one or more reference voltages and connecting the mains voltage to the high intensity discharge lamp 70 via one or more ballast loads 90 dependent on the value of the mains voltage. <IMAGE>
Patent GB-2216405-A (GB)
Title: Adjustable tilting seat for transporting children in motor vehicles
Inventor: CATELLI PIETRO
IPC: B60N2/28
Filed: 1989-03-07
Abstract: A seat for transporting children in a motor vehicle comprises a seat portion arranged to be rigid with a backrest and a supporting member rigidly coupled to said seat portion is provided for bearing on a seat of a motor vehicle. Arranged between the seat portion and supporting member is a sliding member mechanism capable of sliding on a curved guide. The sliding member mechanism comprises means for locking in at least two tilted positions said seat portion and said curved guide means. <IMAGE>
Patent GB-2232396-A (GB)
Title: Improvements to agricultural machinery
Inventor: PENTITH GERALD RICHARD OLDHAM
IPC: A01F15/07
Filed: 1989-05-27
Abstract: A trailer which is towed behind a big round baler (either trailed or semi-trailed), has a conveyor mounted within the chassis, to move the bale from the point of issue when it is ejected from the baler to a position within a wrapping structure B wherein adhesive plastics film fed from rolls are pressed onto the flat sides of the bale by lid members containing an inflatable ring to seal the film to the peripheral wrapping applied to the bale in the round baler. Two layers of film are applied to each bale end the bale being rotated through 90 DEG  between applications.
Patent GB-2221377-A (GB)
Title: Preserving vegetables, meat or other organic substances
Inventor: SUBOTICS GYULA
IPC: F25D23/00
Filed: 1989-06-02
Abstract: Vegetables, meat or other organic substances are preserved by placing the goods to be preserved into a hermetically sealed chamber (I, II), where the chamber (I, II) is connected with some means, advantageously with a gas pump, for varying the pressure within said chamber, or providing said chamber (I, II) with at least one hermetically sealed, movable wall for varying the volume of said chamber, and connecting the latter with a cooling circuit for providing the cooling of the chamber (I, II). 
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Patent GB-2235063-A (GB)
Title: Security printing
Inventor: HOLT LYN
IPC: B41M3/14
Filed: 1989-07-31
Abstract: A continuous method for the secure printing of documents in which moving sheets (4) of a cellulosic material impregnated with titanium dioxide are printed sequentially by irradiating the cellulosic sheets with ultraviolet radiation (1) produced by a laser and having a wavelength of less than 400nm by reflection of the desired reflective images on rotating disc (2) onto the cellulosic sheets. <IMAGE>
Patent GB-2228946-A (GB)
Title: Process for the inhibition of the puffing of cokes produced from coal tar pitches
Inventor: JAEGER HUBERT
IPC: C10B55/00
Filed: 1990-02-12
Abstract: When adding to material for producing coke from coal tar pitches, compounds of Mg, Ca, Sr or Ba such as carbonates, oxides, carbides or fluorides before or during the coking there is obtained after the coking, which is preferably carried out by the delayed coking process, coal tar pitch cokes or coal tar pitch needle cokes which, on heating in the temperature range of 1400 to 2000 DEG  have no irreversible expansion or a strongly reduced irreversible expansion.
Patent GB-2239384-A (GB)
Title: Food product handling; curing packaged cheese
Inventor: HAYES JOHN
IPC: A01J25/16
Filed: 1990-03-06
Abstract: In a handling system for a food product, a chamber 57 has a number of floors 58. each of which is provided with an array of rollers 59 for supporting a packaged food product 12, and each of which is also provided with means for displacing packages 12 relative to rollers 59 in either direction between the input and output ends 62, 63 of the chamber, for example transverse bars 61 extending across the floor for driving the packages 12 on the rollers, the bars 61 being connected by lateral link members 65 to form a drive chain 66, motor 68 controlled by a module 69 driving chain 66 not only to advance the packages at a controlled rate, but also to superimpose on this general advance movement a reciprocating forward and rearward displacement of each package 12 on the rollers. Environmental conditions within the chamber are maintained in accordance with predetermined criteria, typically represented by a cool environment suited to the curing of packaged cheese blocks. The reciprocating displacement of the packages on the rollers is especially advantageous for rolling flat domed surfaces of cheese blocks packaged by an associated packaging line (Figures 1 to 6 (not shown) during a cheese curing operation, to provide correctly shaped rectangular choose blocks suitable for cutting up for retail sale and distribution. The reciprocating action also serves to prevent chilled food product in a cold chamber from becoming attached to the rollers by icing up. <IMAGE>
Patent GB-2242912-A (GB)
Title: Sintered coated metal powder
Inventor: SHIKATA HIDEO
IPC: F16C33/14
Filed: 1990-08-28
Abstract: A method for making a sintered part by compacting and then sintering a powder feed is provided, wherein the powder feed used is a powder mixture of a composite powder, obtained by coating the surface of each particle of a powder material e.g. Fe defining a matrix of the sintered part with a metal defining a second phase e.g. Cu, with a foliated powder formed of the same metal as the second phase or a metal capable of being alloyed with the second phase. A compact obtained from the powder feed is retained in an oxidizing atmosphere and then sintered in a reducing atmosphere at a temperature lower than the melting point of copper or a copper alloy. Prior to oxidization, the compact may be pre-sintered in a reducing atmosphere.
Patent GB-2236642-A (GB)
Title: Control of equipment at a remote site from another site via cellular phone
Inventor: DEAS JAMES NEIL
IPC: H04M1/72415
Filed: 1990-09-20
Abstract: A data logger unit 4 installed at a remote site communicates its data to another site via cellular telephone 2 and modem 8. The telephone and modem are powered by a rechargeable battery 14 itself powered from a solar panel 16. The power to the telephone and modem is switched 12 by clock 10 so that the telecommunications link is only powered up for short periods so that data from the logger unit is downloaded rapidly in such periods. The arrangement reduces battery capacity substantially. <IMAGE>
Patent GB-2240153-A (GB)
Title: Affixing of roof coverings to support slabs
Inventor: KITTILSEN HARALD
IPC: E04D3/36
Filed: 1990-12-10
Abstract: The affixing of a roof covering to a wood wool cement slab (30) is effected by providing a blind recess (34), introducing into said recess (34) an expandable, preferably bondable material (35) for the expansion into said recess (34) and into the slab cavities (32) in the immediate proximity of said recess (34), inserting a fastener (33) into said filled recess (34) before the material (35) is cured or expanded. and allowing the fastener (33) to be cured into said expandable material (35) for affixing a roof covering to the wood wool cement slabs (30). <IMAGE>
Patent GB-2253070-A (GB)
Title: Optic fibre plates containing scintillators
Inventor: HOWORTH JONATHON ROSS
IPC: G01T1/20
Filed: 1991-01-15
Abstract: The resolution of a scintillator in the physical form of a thin sheet made from or carrying a layer of some suitable scintillating substance can never be better than the thickness of the sheet, and while thinner sheets give higher resolution they also result in less efficient conversion of the incident radiation into visible light. Even when the device is constructed as a fibre optic plate - made from a bundle of very fine fibres of scintillator material - the intrinsic conversion efficiency of the materials used to make the optical fibres is low. In this application. the scintillator capability is separated from the fibre-forming capability, by employing one material, e.g. PMMA, (10) to make the fibres and particles of a scintillator (11), eg. ZnS(Ag) or doped SrS mixed into that fibre-forming material, forming a fibre (13) therefrom, which is then clad (14), formed into a bundle (15), drawn and formed into a fibre optic plate (21). <IMAGE>
Patent GB-2244755-A (GB)
Title: A handle assembly for a pivoted window or door
Inventor: FIELDING LEONARD JOHN
IPC: E05B13/10
Filed: 1991-05-23
Abstract: A self-latching window handle (1) has an elongate latch member (16) working in a first bore (17) extending parallel to the handle pivotal axis and provided with a latch detent (22) which co-operates with a striker recess (23b) formed in the handle backplate (10). A key-lockable latch release plunger (28) works in a second bore (30) of the handle and has a frusto-conical inner end (41) which co-operates with a camming face (42) on the latch member such that on pressing the outer end (45) of the plunger (28) the latch detent is withdrawn from the striker recess to enable opening of the handle. The latch detent can be locked in the engaged position, to lock the handle, by turning the plunger (28) with a key to bring a baulking lug (40) on the plunger into engagement with the latch member. The window handle may operate an espagnolette mechanism, or it may be of the type having an integral nib. <IMAGE>
Patent GB-2246851-A (GB)
Title: Preventing overdrying
Inventor: FISCHER CARSTEN
IPC: A24B3/04
Filed: 1991-07-17
Abstract: To prevent overdrying of tobacco during start-up and closing-down of a dryer, e.g. one with a rotating inclined drum 1, finely distributed moisture is sprayed onto the tobacco T as it leaves the dryer - the moisture may be a mist of, preferably, hot water droplets, or it may be wet steam. The internal heating of the drum 1 and the application of moisture may be controlled to a conveyor weigher 54 ahead of the drum 1, operating with a monitor of the moisture content of the tobacco entering the dryer. A further monitor may measure the moisture content of tobacco discharged from the dryer. <IMAGE>
Patent GB-2247892-A (GB)
Title: Abrasive composition for scratch-free finish buffing
Inventor: MATSUMOTO HIROSHI
IPC: B24B37/00
Filed: 1991-08-08
Abstract: Workpieces e.g. stainless steel are buffed to a scratch-free mirror finished surface by applying an abrasive composition to a buff, rotating the buff, and pressing the workpiece against the buff. The abrasive composition used is obtained by dispersing 3 to 20% by weight of abrasive grains with a mean grain size of up to 0.5  mu m in water and adjusting the slurry to pH 1 to 5 with nitric acid, phosphoric acid or a nitrate. The abrasive grains may be one or more of aluminium oxide, chromium oxide, iron oxide and silicon carbide and the acidic component is preferably aluminium nitrate.
Patent GB-2260512-A (GB)
Title: Laminated window
Inventor: BRUCE ROBERT S
IPC: B32B17/10
Filed: 1991-10-16
Abstract: A laminated window for use over a wide range of operating temperatures includes a layer of hard polyvinylbutyral (4, 6) and a layer of glass (2, 3), with an intermediate layer of a further interlayer material therebetween characterised by the inclusion of a separator (10, 11, 12, 13) between the said layer of glass and the hard polyvinylbutyral around the periphery thereof. <IMAGE>