baber/WOPTO huggingface dataset:
Patent GB-2114675-A (GB)
Title: Centrifugal fan impeller
Inventor: PAK VITOLD VITOLDOVICH
IPC: F04D29/30
Filed: 1982-02-10
Abstract: An impeller comprises a front disc and a rear disc 2, wherebetween blades 3 are secured. The impeller is provided with means for varying the profile of at least a portion of the blades, which means are arranged symmetrically with respect to the impeller axis. Each of the means is a flexible member 4 mounted on a corresponding blade 3 and bent to provide a loop 4a. With rotation the blade diameter is increased from D to D' and the exit angle from ??? to ???', which in turn changes the delivery and pressure developed by the fan. Varying the length of the flexible members 4 and/or the points of their fastening on the blade 3 provides a means for controlling the centrifugal fan performance. <IMAGE>
Patent GB-2098597-A (GB)
Title: Process for preparing aryl acetic acid derivatives
IPC: C25B3/25
Filed: 1982-03-01
Abstract: A process for preparing an aryl acetic acid derivative of the formula  Ar &lparstr& CH2COY)n comprises hydrolyzing in an alkaline substance a dichloroethenyl compound of the formula  Ar &lparstr& CH=CCl@)n wherein Ar is phenyl, polynuclear aromatic group or heterocyclic group optionally substituted with halogen, hydroxyl, alkyl, alkenyl, aralkyl, alkoxy, acyloxy, aralkyloxy or phenoxy having or having not substituents, the substituent of said Ar is 1 to 3 in number and may be different or the same, n is an integer of 1 to 3, and Y is hydroxyl, amino or alkoxy. The dichloroethenyl compound may be prepared by electrolytic reduction of a trichloromethyl carbinol derivative of the formula   <IMAGE> wherein R is hydrogen or acyl.t
Patent GB-2095604-A (GB)
Title: Seal between two components
IPC: B23K35/00
Filed: 1982-03-15
Abstract: A seal between two components, such as an aluminium alloy electrode (1) and a glass ceramic monoblock (2) of an integral cavity laser gyroscope, is made by applying a layer of metal, e.g. gold, (6, 7) to each component (1, 2) by vacuum deposition, compressing a member, e.g. an O-ring (10), of a further metal, e.g. indium, between the layers (6, 7) so as to promote diffusion, and subjecting the resulting seal to heat treatment to enhance the mechanical strength thereof. <IMAGE>
Patent GB-2105841-A (GB)
Title: Waste gas purifiers
Inventor: CHENG KAM SHING
IPC: F24C15/20
Filed: 1982-04-20
Abstract: A waste gas purifier in particular for purifying waste gas flow through a cooker hood 1 comprises a jet (4), which supplies a jet stream of water and detergent onto an inflow of waste gas in order to emulsify oil in the waste gas and remove the emulsified oil by centrifugation, and a rotatable baffle member (3) onto which the treated waste gas is directed for separating remaining impurities and the used water from the gas before exit of the purified waste gas via an exhaust duct (9). A control unit (10) houses means for controlling the baffle member and the water and detergent supply. <IMAGE>
Patent GB-2097744-A (GB)
Title: Packet handling apparatus
IPC: B65G47/51
Filed: 1982-04-30
Abstract: A packet conveying system, particularly for conveying cigarette packets from a cigarette packing machine includes a buffer reservoir (10) having an endless series of compartments (12) for temporarily storing stacked batches of packets (22). The system includes opposed conveyors (42, 44) for conveying packets longitudinally through a compartment (12) at a transfer position (24). The inner conveyor (44) engages packets (22) through a slot in the base of the compartment (12) and is retracted to allow indexing of the reservoir conveyor (14) to move another compartment into the transfer position (24). <IMAGE>
Patent GB-2122342-A (GB)
Title: Apparatus for liquid analysis
Inventor: THOMPSON MICHAEL
IPC: G01N21/73
Filed: 1982-06-22
Abstract: Apparatus for determination of trace elements in a liquid solution by means of an inductively coupled atomic emission spectrometer (ICP), or other analyser comprises a variable speed pump or other variable means for adding to the solution to be analysed a diluent or other additive for varying the concentration of a given constituent of the solution fed to the analyser, a computer for comparing with a reference level the concentration of the given constituent as measured by the analyser, and means controlled by the computer for regulating the addition of additive to adjust the concentration of the given constituent to match the reference level. The trace elements are determined in the solution so prepared. <IMAGE>
Patent GB-2105894-A (GB)
Title: Price ticket assembly
Inventor: KENNEY GEORGE HERBERT WOODWARD
IPC: G09F3/20
Filed: 1982-08-09
Abstract: A merchandise price ticket assembly has a base stand (not shown) with an upstanding stem 3 carrying a display surface part 4. This part may have thereon a self- adhesive or self-adherent sheet 6 which is selected from an album of such components according to need and applied thereto is a pricing component 7 of a flexible self-adherent PVC which may thus be changed easily and also stored in an album. To provide a temporary highlight a readily-detachable sheet 8 can be attached to the part 4, the sheet having lower bent portions 10 forming channels 9 to engage the bottom of part 4. The upper part of sheet 8 may have a tab 12 or angled incisions or cut-outs (40) into which corners (40, 41) of the part 4 can be entered. <IMAGE>
Patent GB-2114041-A (GB)
Title: Cemented carbide cutting tools and processes for making and using
Inventor: FROMSON ROBERT EUGENE
IPC: B23B27/20
Filed: 1983-01-14
Abstract: A resharpenable cemented carbide cutting tool, performing one of either cutting or shearing in use, has a cutting edge 9, which is formed by the intersection of two surfaces 5 and 11; only one surface out of the two is treated by ion implantation at a region adjacent to said cutting edge. The surface to be treated by ion implantation is so chosen to be the one i.e. 11 that is subjected to relatively greater wear compared to the other surface; said other surface 5 can be ground to resharpen the tool. A method of making and using these tools is described. The benefits of the initial ion implantation on cemented carbide tool life will remain after sharpening of the tool. <IMAGE>
Patent GB-2115828-A (GB)
Title: Hybrid silicates
Inventor: CURRELL BRIAN ROBERT
IPC: C07F7/08
Filed: 1983-02-09
Abstract: A hybrid silicone/silicate compound which comprises (i) at least one group of the formula:   <IMAGE>  wherein:  M represents a cation of valency n; and R represents a substituted or unsubstituted hydrocarbyl group; and preferably (ii) at least one  DEG Si DEG 4 group wherein the sum connectivity of the 4 silicon atoms connected thereto is greater than 6. It may be obtained by treating a compound comprising a group   <IMAGE> with a base M<+n)<R8<->)n in which R8<-> is a carbanion, hydroxide, hydrocarbyloxide or amide anion.
Patent GB-2139905-A (GB)
Title: Electronic chess game
Inventor: REID RORY DEREK ALBERT
IPC: A63F3/02
Filed: 1983-05-19
Abstract: The game apparatus comprises a chessboard 10 and chessmen 21 and an electronic switching circuit arranged so that application of a chessman to a square will cause lights 16 to be indicated on the board and/or a video screen to show all possible moves of this chessman. In particular, each square of the board has a hole 15 for receipt of a projection 22 on a chessman such that the projection activates the electronic circuit upon application of pressure on that chessman. A row of press buttons and associated lights 18 may be provided for each player. <IMAGE>
Patent GB-2125561-A (GB)
Title: Improved transducer for measuring the pressure of a fluid, in particular an aggressive fluid and at high temperature
Inventor: PARMEGGIANI ALDO
IPC: G01L9/00
Filed: 1983-07-28
Abstract: The invention relates to a transducer for measuring the pressure of fluids, in particular aggressive fluids and at high temperature. The transducer 10 comprises two members 11, 12 one inserted into the other so as to define an annular chamber 17 into which said fluid is admitted. On the surface of one of said members 11, which is relatively yieldable elastically, there is applied a plurality of strain gauges 18, 19 disposed in a substantially symmetrical manner. <IMAGE>
Patent GB-2126370-A (GB)
Title: Infra-red objective zoom lenses
Inventor: ROBERTS MICHAEL
IPC: G02B15/16
Filed: 1983-08-12
Abstract: An infra-red objective zoom lens has a fixed front positive singlet (1), a movable negative group (2,3), a movable positive singlet (4) and a fixed rear group (5,6). The zoom lens can be relatively short and can be used with an "eye-piece" lens (7,8,9) to form an infra-red a focal telescope. The system can be further shortened by using a rear group (5,6) of telephoto form. <IMAGE>
Patent GB-2126091-A (GB)
Title: Vapourizing container for perfumes and the like
Inventor: FRAZER ALBERT JOHN
IPC: A61L9/12
Filed: 1983-08-15
Abstract: The invention relates to a ceramic container containing a liquid mixture including a volatile substance. The liquid content and vessel is formulated and manufactured to permit a slow release of vapours of the volatile substance through the container wall.
Patent GB-2145206-A (GB)
Title: Laundry drying equipment
Inventor: DAVIES JOHN GARFIELD
IPC: D06F58/02
Filed: 1983-08-16
Abstract: A tumbler dryer has a drum-shaped shell (4) which, with a view to simplifying the construction of the dryer, is rotatably-mounted on cylindrical flanges (8) in the front and rear end walls of the drum. The flanges (8) are supported on guides (9) in the front and rear walls (1,2) of the dryer casing. The casing is formed from three structural components providing, respectively, these front and rear walls (1,2) and a base (3). The interior of the casing is divided, by a guide member (14) which partially surrounds the shell and by a partition (20), into two chambers one of which contains an impeller 12 and an air heater 13 and, in use, is at a relatively higher pressure than the other chamber. During operation of the dryer airflows from the higher-pressure chamber into the drum and is discharged from the drum into the lower-pressure chamber. <IMAGE>
Patent GB-2129216-A (GB)
Title: Field effect transistors
Inventor: WHITE JOHN CHARLES
IPC: H01L29/417
Filed: 1983-10-10
Abstract: A grooved gate field effect transistor wherein the length of the channel between the source (5) and drain (7), the depth of the groove (9), and the dopant concentration in the substrate material (3) of the transistor, are all such that upon the application of substrate bias the transistor exhibits a characteristic for which the threshold voltage decreases with increase in substrate bias. It is preferable that the walls (13) of the groove (9) are steep-sided and that the groove (9) is of asymetrical step structure, the drain diffusion (7) lying lower than the source diffusion (5) and level with the gate electrode (19). An inverter may be constructed using two transistors, as above, with a common contact between the source- or-drain electrodes of each. <IMAGE>
Patent GB-2135264-A (GB)
Title: Method of and apparatus for changing the formation of spaced rows of items in an advancing stream
Inventor: MORTON DAVID CHARLES
IPC: B65G47/29
Filed: 1984-02-15
Abstract: Changing the formation of successive transverse rows of product items (11) in an advancing multitude of such items is effected by contacting all of the items within a row with at least one of a plurality of arrestor members (30) arranged in a line across the stream of items, the arrestor members being cammed (preferably pivotably) by a rotary camming member (33) to move from an arresting disposition in a succession from one side of the stream to the other to a releasing disposition, thereby to release the items progressively from one end of the row to the other, and thereafter to allow all of the arrestor members to move back to the arresting disposition for contact with the next following row upstream of the released row. The rotary action admits of simpler mechanical operation than the prior art devices and the arrestor members are tolerant of changes of product width and misaligned product items. <IMAGE>
Patent GB-2137546-A (GB)
Title: Equipment for making and breaking drill tube connections
Inventor: GRUTZMACHER HANS-GEORG
IPC: E21B19/16
Filed: 1984-02-23
Abstract: Drilling equipment comprises a drive device for a drilling rig having a drive shaft (1) rotatable in opposite directions (23, 25) and having a threaded journal for connection of drill tubes, a holding device for drill tubes and a drill-stem breaking device including a ratchet wheel (10) for rotation with the drive shaft (1) a pawl (12) carried on an annular member (8) concentrically arranged relative to the drive shaft (1) and carried on a housing member for rotation thereon, the pawl (12) connecting the annular member (8) to the ratchet wheel (10), and means (16) for rotating the annular member (8) so as to drive the ratchet wheel (10) through the pawl (12). <IMAGE>
Patent GB-2157214-A (GB)
Title: Punch press carriage arrangement
Inventor: GARDNER R F
IPC: B21D43/00
Filed: 1984-03-16
Abstract: A carriage arrangement for a punch press comprises a beam 10 slidably mounting a carriage which has clamps 28 for gripping a workpiece. The carriage comprises a metal rod 12 slidably mounted in bearing blocks 14 which are fixed to the beam and each have a gap to accommodate a flat metal bar 16 fixed along one of its edges to the rod 12 and supported adjacent its other edge by sets of rollers 18, 20. The clamps are mounted to the carriage by way of the flat bar 16. <IMAGE>
Patent GB-2157255-A (GB)
Title: Stackable drums
Inventor: RIPOLL ANGEL LAS
IPC: B65D19/08
Filed: 1984-03-29
Abstract: A stackable drum (1) comprises;   a) a top (2) having an raised peripheral rim, (3) formed with a channel (30) immediately inward from the rim (3), b) a base portion (31) at the bottom of the drum (1) with or without drain holes, having a plurality of feet (9) to be received wfthin the channel (30) of an identical drum when a plurality of drums are stacked, wherein;     i) each foot (9) is provided with an outwardly projecting step (10) to rest upon the perimetral rim of said identical drum so as to transmit the weight of the first drum through the perimetral rim of said identical drum, and, through the side walls (6) of the identical drum.   At least one foot (9) may be provided with a shoe (14), the or each shoe being fixedly attached to the foot, hook or sling receiving apertures 16 may be provided on the foot or the shoe. <IMAGE>
Patent GB-2161359-A (GB)
Title: Treatment of whole cereal grains
Inventor: ROSS WILLIAM LEONARD
IPC: A23L7/196
Filed: 1984-07-11
Abstract: Whole cereal grains, especially whole wheat grains, are soaked in water to soften them and heated in water containing an edible oil and preferably a fruit juice to produce a swollen whole grain product. The product is tasty and nutritious and may be mixed with yogurt, the latter improving the grains after two or three days in storage.
Patent GB-2147035-A (GB)
Title: Improvements in and relating to impact-action self-propelled mechanism for driving holes in the earth
Inventor: KAYES ALLAN GEORGE
IPC: E21B4/14
Filed: 1984-08-29
Abstract: A pneumatically operated impact-action self-propelled mechanism for driving holes in the earth comprising a cylindrical housing assembly (10) with an anvil member (11) located at the forward end thereof. An impact piston (12) is reciprocal in the housing to deliver successive impacts to the anvil member and shaping with the housing a forward chamber (15) of variable volume. A control assembly comprises a forwardly extending sleeve (23) which is slidably received within a rear space of said impact piston to form a rear chamber (16) of variable volume. A central passage is connected to said sleeve for continuous supply of compressed air into said rear chamber and therefrom into said forward chamber through apertures (18) in a side wall of the rear chamber of said impact piston. Means is provided for locating said sleeve longitudinally with respect to said apertures for providing forward or reverse movement of said mechanism. An elastically deformable shock-damping bush (20) is located within the rear of the housing assembly which houses an annular metallic member (21) having longitudinal apertures (22) formed therethrough, through which air is exhausted. <IMAGE>
Patent GB-2150483-A (GB)
Title: Cutting device
Inventor: OISHI KOUJI
IPC: B26D1/09
Filed: 1984-10-16
Abstract: A device for cutting piled sheets of paper or the like P, which comprises a holder 11 provided with a groove 15 and a blade 12 inserted into the groove to be held by the holder. The holder is movable perpendicularly to the piled sheets of paper and the blade has an edge 13 defined between an inclined surface 13a of the blade and one side surface 12a thereof. The groove is inclined relative to one side surface 11a of the holder. The blade is inserted into the groove removably therefrom so that the inclined edge surface of the blade is in parallel with and projects from said one side surface 11a of the holder which stands perpendicular to the piled sheets of paper to be cut. <IMAGE>
Patent GB-2149124-A (GB)
Title: Coil arrangement for NMR apparatus
Inventor: BYDDER GRAEME MERVYN
IPC: G01R33/34
Filed: 1984-10-31
Abstract: A radio frequency coil arrangement for an NMR imaging apparatus comprising one or more coils (10A, 10B) which are convexly and/or concavely shaped to facilitate close fitting of the arrangement round a body part being imaged. As shown, the coils are disposed on a helmet shaped former 45, for fitting to a patient's head. The former may be in two parts for assembly round the body part. <IMAGE>
Patent GB-2166879-A (GB)
Title: Projection printing
Inventor: OHTA MASAKATSU
IPC: G03F7/207
Filed: 1984-12-31
Abstract: In an apparatus for the projection of an image from a mask on to a wafer, a microprocessor adjusts the position of the wafer in X, Y and Z directions in response to information from wafer positional sensors and ambient condition sensors for sensing pressure, temperature and humidity. Laser interferometers measure the X and Y positions of the wafer relative to the mask. An air, non-contact type electric or optical micrometer measures the distance between the lens and the wafer. The microprocessor corrects focus and magnification errors. In the simpler apparatus of Figs. 1 and 2, the wafer is adjusted only in the Z (axial) direction. 
<IMAGE>
Patent GB-2155476-A (GB)
Title: Esters of the family of N-phosphonomethylglycine and their use in the preparation of known herbicides
Inventor: LACROIX GUY
IPC: C07F9/40
Filed: 1985-01-29
Abstract: Phosphonic acid diesters having the formula:   <IMAGE>  in which R represents a hydrogenolysable group, preferably an aralkyl group, and R<1> represents a hydrolysable group, are obtained by a process wherein phosphonic acid esters of the formula (R<1>O)2P(O)H are reacted with formaldehyde and compounds of the formula R-NH-CH2-COOH, R and R<1> having the meanings given above. Compounds of the formula   <IMAGE> may be obtained by hydrogenolysis of the above compounds.
Patent GB-2172454-A (GB)
Title: Electric motor control
Inventor: ROBINSON BRIAN
IPC: H02P25/14
Filed: 1985-02-26
Abstract: A controller for an electric motor controlled by a thyristor, comprising a current measuring circuit 1 for measuring the current supplied to the motor in each cycle. A memory 2 is arranged to store the value of the current in the previous cycle and a comparator 3 is arranged to compare the present and previous current values. A control circuit 4 is connected to gate the thyristor and arranged to alter the firing angle of the thyristor in dependence on the output of the comparator. <IMAGE>
Patent GB-2161118-A (GB)
Title: Inflatable tube boat
Inventor: GALT GRANVILLE STEWART
IPC: B63B7/08
Filed: 1985-06-28
Abstract: An inflatable tube boat has a hull which includes decking (1B) and upstanding sides, one of which is seen at (1). The inflatable tube (2) has an inflatable inner skin (2B) and an outer skin. The latter is formed by a rectangular sheet, or adjacent sheets, of material (2A) and one upstanding hull side portion (1). The sheet (2A) is removably connected at its upper and lower edges (at 3A and 3B) to the hull side portion (1). Thus the outer skin can be opened for access to the inner skin, for example in case of damage to the latter. The inflatable tube may comprise a single skin tube. <IMAGE>
Patent GB-2161189-A (GB)
Title: Rock bit and method of making the same
Inventor: KAR NARESHCHANDRA J
IPC: F16J15/34
Filed: 1985-07-05
Abstract: This invention relates to a belleville seal for a sealed bearing rotary cone rock bit. The inner static ring portion of the annular belleville seal is metal and is interference fitted over the base of a journal bearing. The separation joint formed between the inner diameter of the static ring portion of the belleville seal and the outside diameter of the journal bearing is circumferentially welded using a high-energy beam source to form a hermetically sealed metallurgical bond therebetween.
Patent GB-2165473-A (GB)
Title: Ingot mould bottom plate protection and seal
Inventor: CHAPPELL JOHN JOHNSON
IPC: B22D7/12
Filed: 1985-09-12
Abstract: The bottom plate (B) is protected from erosion by a protection comprising a sheet (1) e.g.of a cardboard, to lie on the plate, the sheet having a striker-pad (2) and at its edge a strip (3) of compressible sealing material. The striker-pad may gradually break up in use to give lumps of material which dissolve in the steel with beneficial effect e.g. fluxing. <IMAGE>
Patent GB-2189017-A (GB)
Title: Improvements in or relating to lampshades
Inventor: BROWN JOHN DAVID MICHAEL
IPC: F21V1/20
Filed: 1986-03-06
Abstract: A lampshade 10 with glass panels 14 is assembled by firstly inserting a top edge 14a of each glass panel 14 into a slot 24 near the top of the lampshade frame 12, then securing the bottom edge 14b of the glass panel by means of a metal clip 26 on the frame 12, and lastly fitting the socket assembly 16. In this way, the dome-shaped cover 16b of socket assembly 16 does not have to be manipulated to hold the top edges of the glass panels during the assembly operation. <IMAGE>
Patent GB-2172563-A (GB)
Title: Rail vehicle
Inventor: HUDSON MICHAEL JOHN
IPC: E01B29/44
Filed: 1986-03-24
Abstract: A vehicle (1) comprises a carriage (4) adapted to run on rails (2). The vehicle (1) is provided with a cover (6) which is movable between an operative position, as shown, and an inoperative position over the carriage (4). In the operative position the cover (6) covers an area of rail track adjacent the carriage (4); this enables rail track activities, such as welding, to continue in adverse weather conditions. <IMAGE>
Patent GB-2174908-A (GB)
Title: Controlling cockroaches using (s)-(+)hydroprene
Inventor: KOHN GUSTAVE K
IPC: A01P7/04
Filed: 1986-05-12
Abstract: Cockroach populations are controlled using the (S)-(+) enantiomer of hydroprene (Ethyl (2E, 4E)-3,7,11-trimethyl-2,4-dodecadienoate), which has superior juvenile hormone activity to the (R)-(-) enantiomer. Compositions for this purpose comprise (a) (S)-(+) hydroprene; (b) a diluent; and (c), where the diluent is a solvent, a propellant, a surfactant or a thickener.
Patent GB-2176221-A (GB)
Title: Connecting reinforced- concrete beams end-to-end
Inventor: RUSSELL JAMES BAILIE
IPC: E04B1/21
Filed: 1986-05-19
Abstract: Each end of the beam has an end piece comprising a rectangular plate 12 transverse of the beam's longitudinal axis. The plate 12 has apertures 14 at each corner. Angular wall surrounds 16 outstand from the inner face of the plate 12 and from around the apertures 14 to separate each aperture from the others. Two starter bars 20 are provided to each surround 16, one to each limb, adjacent to the corner on the side remote from the corresponding aperture. Between bars 20 is a longitudinal 10 of the reinforcement cage. Nut and bolt fastenings 24 are used to secure abutting plates 12 of adjacent beams in a multi-beam assembly. The reinforcement cage is formed of four longitudinals 10 round which is a lengthwise series of hoops. <IMAGE>