baber/WOPTO huggingface dataset:
Patent GB-2197364-A (GB)
Title: Limited entry method for inducing simultaneously multiple fracture in deviated wellbores
Inventor: STRUBHAR MALCOLM KRABILL
IPC: E21B43/30
Filed: 1987-11-05
Abstract: A hydraulic fracturing process for inducing simultaneously, multiple vertical fractures in a deviated wellbore located in a subterranean formation for the removal of resources therefrom, particularly hydrocarbonaceous fluids. The process results in increased recovery of hydrocarbonaceous fluids when combined with steam-flooding, solvent or surfactant stimulation processes. The wellbore is selectively perforated with holes sufficiently apart that multiple vertical fractures are produced. This occurs when the fracturing fluid rate through the limited holes causes a pressure drop across the holes sufficient to divert the fluid through essentially all of the holes. <IMAGE>
Patent GB-2197936-A (GB)
Title: Coupling valve for erosive fluids
Inventor: CLARKE DALE M
IPC: F16K3/02
Filed: 1987-11-12
Abstract: A coupling valve especially adapted for modulating the flow of erosive fluids includes a rimmed body (12) having an internal bore (36) of known diameter (42). Two opposing slots (22) are formed in the rim of the body to accommodate an apertured plate (14) extending therethrough. By selectively extending and withdrawing the plate, control of the fluid flow may be modulated. The body (12) comprises two semi-circular positions (16, 18) bolted together at (20). <IMAGE>
Patent GB-2217947-A (GB)
Title: Composite type digital video signal recording
Inventor: WILKINSON JAMES HEDLEY
IPC: H04N9/877
Filed: 1988-04-23
Abstract: A composite type helical scan digital video tape recorder for recording a composite type digital video signal in oblique tracks on a tape comprises a pixel shuffle device (1) for redistributing the pixel positions of the video data prior to recording, so that every line of every field or of every frame is recorded with the same colour sequence. To obtain correct colour phasing on reproduction, the pixel positions are further redistributed back to their original pixel positions by the pixel shuffle device (5) in the normal play mode, but on reproduction in the normal play mode, but on reproduction in the shuffle mode (i.e. fast or slow speed play) they are not so further redistributed. <IMAGE>
Patent GB-2223891-A (GB)
Title: Improved accessory box for wiring appliance
Inventor: MEYERS MELVILLE TREVOR
IPC: H02G3/12
Filed: 1988-09-26
Abstract: An accessory box comprises a box (10) incorporating a flange (11) extending therearound, the distance of the flange from the front of the box being determined as being the normal depth of plaster to be applied to the wall to which the box is to be attached. A plurality of apertures (12) are provided in the flange (11) providing fixing holes by means of which the box may be secured to a wall (22) without the need for any fixing to be made to the rear base portion of the box (10). A plurality of knockout portions or apertures (13) are provided in the side walls and//or in the base portion of the box (10) to enable access to the interior of the box from the side door rear for wiring. The flange (11) is covered by the plaster base coat thereby providing additional securing of the box, whilst the provision of the flange (11) obviates the need for careful excavation of a recess for mounting as with a conventional mounting box. <IMAGE>
Patent GB-2226030-A (GB)
Title: Blowing agent
Inventor: RANDALL DAVID
IPC: C08J9/14
Filed: 1988-12-13
Abstract: Blowing agent consists essentially of 10-80 mol % of trichlorofluoromethane and 20-90 mol % a normally-liquid organic compound of boiling point below 120 DEG  C (especially 1,1, 1-trichloroethane or 1,1-dichloro-1-fluoroethane). The blowing agent is useful for making polyurethane foams.
Patent GB-2217711-A (GB)
Title: Aryl ketones and polyarylethers made therefrom
Inventor: NEWTON ALAN BRANFORD
IPC: C07C49/813
Filed: 1989-04-18
Abstract: Aryl ketones and polyarylethers made therefrom, and processes for their manufacture, are described. The aryl ketones are of the formula   <IMAGE> wherein Ph is 1,4-phenylene and X is halogen, preferably F. The polyarylether has repeat units of formula   <IMAGE> optionally with repeat units of formula  -Phn -   wherein n is an integer from 1 to 3 and/or other repeat units the units being connected by ether linkages. Such polymers are crystalline and have high Tg's relative to Tm's.
Patent GB-2231791-A (GB)
Title: Rug with detachable backing
Inventor: TAYLOR ANNE
IPC: A47G9/06
Filed: 1989-05-25
Abstract: A travel rug has a detachable water repellent backing secured to the rug by press studs. The backing comprises a waxed cotton shoot. The half of each press stud which is fixed to the rug is sandwiched between the underside of the rug and a reinforcing sheet. Individual reinforcing sheets surround respective stud halves spaced about the peripheral region of the underside of the rug, whilst the backing is seamed around substantially the whole of its peripheral region. <IMAGE>
Patent GB-2220610-A (GB)
Title: Moulding of polymeric material
Inventor: TAYLOR GEOFFREY RICHARD
IPC: B29C70/66
Filed: 1989-07-14
Abstract: A method of moulding a polymeric material (2) with internal cavities (3) contained therein which comprises incorporating in the polymeric material (2) a plurality of hollow capsules (1) each defining an individual cavity, characterized in that the hollow capsules (1) are subsequently dissipated so that the polymeric material (2) forms a direct interface with the cavities (3). The capsules (1) are composed of a material which is absorbed or dissolved by the polymeric material (2). Alternatively, the capsules (1) are not dissipated, but instead are composed of material having the same density and velocity of sound propagation as the polymeric material (2).
Patent GB-2230006-A (GB)
Title: Separation of isomers of furo [3, 4-c] pyridine derivatives
Inventor: ESANU ANDRE
IPC: C07D491/048
Filed: 1990-04-03
Abstract: Stereoisomers of 7-hydroxy-furo [3, 4-c] pyridine derivatives of the general formula I:… …<IMAGE>… wherein R3, R4 and R6 represent various substituents are separated by reading a fully O-acetylated monosaccharide halogenide with a racemate of the selected 7-hydroxy-furo [3, 4-c] pyridine derivative. The (+) and (-) (O-acetylated monosaccaride) (furo [3, 4-c] pyridine 7-yl derivative) ethers formed are separated into the (+) and the (-) ethers by selective crystallization in an hydroalcoholic medium. Either the acetylated or the desacetylated forms may be separated.
Patent GB-2292504-A (GB)
Title: A ciphering device
Inventor: BERGNER PETER
IPC: H04L9/12
Filed: 1990-07-19
Abstract: In the transmission of classified information, such as speech and data, in particular in the case of CCITT digital signal hierarchies, serial bit streams with bit rates of more than 100 Mbits can occur. In order that integrated circuits designed in CMOS technology and having a low power requirement can be used to construct ciphering devices for bit streams having such a high bit rate, a plurality of subsidiary encipherers and subsidiary decipherers are used by employing multiplex technology. When subsidiary encipherers and subsidiary decipherers with the same crypto-variables are used, by employing individual synchronisation of the mutually assigned subsidiary encipherers and subsidiary decipherers at the transmitting and receiving ends it is possible to dispense with a special synchronisation between the demultiplexer and the multiplexer at the transmitting end on the one hand and at the receiving end on the other hand. <IMAGE>
Patent GB-2239531-A (GB)
Title: Measuring the null angle of a monopulse antenna
Inventor: INOUE MASATO
IPC: G01R29/10
Filed: 1990-10-29
Abstract: The null angle " delta " in the radiation pattern of a monopulse antenna (21) is acquired by transmitting (10, 11) an RF signal from a plurality of phased antenna elements (12-1 to 12-5) to the antenna, acquiring the sum signal (21a) and difference signal (21 b) in the directions of the respective antenna elements and acquiring (25) the null angle in accordance with the sum and difference signals. The antenna (21) is rotated (23) to face each antenna element in turn. <IMAGE>
Patent GB-2250543-A (GB)
Title: Lattice frame closer
Inventor: CROSSLEY PETER JOHN
IPC: B66B13/30
Filed: 1990-12-07
Abstract: A lattice frame closer is provided to overcome problems with resistance to opening and closing a lattice frame. A lattice frame comprises an array of arms (3), and a plurality of pivot points (6, 7) around which the arms pivot, and a means for applying a biasing force to one or more pivot points is provided to bias the lattice frame towards the extended position. The biasing means comprises a cylinder (21) housing a piston (24) and a spring (23), the spring urging the piston against a pivot point. The pivot points are arranged in pairs, and the biasing means are arranged in opposed pairs, with one pair acting downwards on an upper pivot point, and the other of the pair acting upwards on a lower pivot point. <IMAGE>
Patent GB-2252056-A (GB)
Title: Toy construction panels
Inventor: CHEN JENG-CHWEN
IPC: A63H33/08
Filed: 1991-01-25
Abstract: Toy building panels each have mortise and tenon formations round their periphery and holes through their thickness, the spacing of the holes corresponding to that of the tenons. Two such panels can thus be joined edge-to-edge or with some of the tensons 11 of one extending into the holes 12 of the other. <IMAGE>
Patent GB-2242704-A (GB)
Title: High density cement pump arrangement
Inventor: MALKOSKI MICHAEL LANGFORD
IPC: F04D3/02
Filed: 1991-02-12
Abstract: The auger pump 36 is fed with grout from a hopper (12) having a series of agitators (24, 26, 28, 30) in the hopper. Downstream of the auger 36 is disposed a rotor/stator (50, 52) set having a serpentine motor 50. The pump is held together by a pair of side bars (62) having quick release bear clamp clasps (66) for expeditious disassembly. <IMAGE>
Patent GB-2241966-A (GB)
Title: Process for the manufacture of paper
Inventor: TEODORO VIDAL JUAN
IPC: D21H25/06
Filed: 1991-02-26
Abstract: The process treats a vegetable fibre paper base having a high cellulose polymerisation index with a polyvinyl alcohol based paste and a paste to improve the dry strength of the paper, after which the base is hot pressed. The resulting paper is particularly suitable for the manufacture of bank notes and other valuable documents.
Patent GB-2243161-A (GB)
Title: Coating systems for titanium oxidation protection
Inventor: LUTHRA KRISHAN LAL
IPC: C23C4/08
Filed: 1991-04-02
Abstract: Coatings that provide substantial oxidation protection for titanium substrates are comprised of a continuous coating of ductile MCrAl or ductile MCr alloys where M is at least one metal selected from the group consisting of iron, nickel, and cobalt. Ductile MCrAl alloys are comprised of, by weight percent: about 10 to 40 percent chromium, about 4 to 10 percent aluminum, and the balance substantially iron; about 8 to 40 percent chromium, about 4 to 10 percent aluminum, and the balance substantially nickel; or about 10 to 25 percent chromium, about 4 to 5.5 percent aluminum, and the balance substantially cobalt. Ductile MCr alloys are comprised of, by weight percent: about 20 to 40 percent chromium, and the balance substantially iron; about 20 to 50 percent chromium, and the balance substantially nickel; or about 15 to 35 percent chromium, and the balance substantially cobalt. Adhesion promoting elements such as Zr, Si, Ta, Hf, Y, Sc, or La may be present in the MCrAl or MCr alloys. The coatings can be deposited by plasma spraying, chemical vapor deposition, or physical vapor deposition and remain adherent on titanium substrates during repeated thermal cycling while providing substantial oxidation protection up to about 950 DEG C.
Patent GB-2244642-A (GB)
Title: Chair control mechanism
Inventor: WICKMAN DENNIS J
IPC: A47C3/026
Filed: 1991-04-29
Abstract: An office chair (8) is capable of dynamically tilting to provide a desired seat inclination from an upright position to a maximum tilted position. The preloading mechanism (30) of the spring includes an adjusting screw (72) and a tension arm (66) which provides leverage. The leverage of the preloading mechanism facilitates turning the adjusting screw to vary the preloaded tension of the springs. Also, a spindle cover (80) is provided to stop movement of the seat at the maximum tilted position, and to stop movement of a toggle mechanism (34) at the upright position. <IMAGE>
Patent GB-2256999-A (GB)
Title: Video camera aberration correction
Inventor: RICHARDS JOHN WILLIAM
IPC: H04N3/233
Filed: 1991-06-21
Abstract: A video camera includes a camera tube 10 and a tube target for sensing light via an optical system 11, scanning circuitry for causing scanning of the tube target 10 and producing output signals according to the light intensity sensed by the tube target 10. A scanning table store 16, 22 for producing digital deflection signals for a scanning pattern, and a scan corrector 25 for producing digital correction signals for modifying the scanning pattern to compensate for the effects of imperfections of the optical system 11 is provided. A tube camera producing high quality images can thereby be produced. <IMAGE>
Patent GB-2257715-A (GB)
Title: Plating substrates using a microwave heating source
Inventor: HOLBROOK KENNETH ARTHUR
IPC: C25D21/02
Filed: 1991-07-19
Abstract: A method of depositing a coating comprises inserting a substrate into a plating solution in a chamber and subjecting the plating solution to heating by a microwave power source 12 during the plating process. This produces coatings which have superior coating rates, grain structure and hardness as well as providing cleaner treatment conditions. A pressure probe in the form of a glass rod 14 extends into the microwave chamber 10. The coating process may be electroless plating or electrolytic plating. The substrate may be copper or steel and the material deposited may be a nickel-phosphorous coating. The power to the microwave source may be pulsed and the power output of the microwave source may be adjusted to control the temperature of the plating solution. The plating solution may be heated by the microwave source prior to insertion of the substrate and the coated substrate may be subjected to a further heat-treatment. <IMAGE>
Patent GB-2249406-A (GB)
Title: Folded optical systems for telescopes and binoculars
Inventor: FREEMAN MICHAEL HAROLD
IPC: G02B17/00
Filed: 1991-09-25
Abstract: An optical system for a telescope or a pair of binoculars has an optical path folded by erecting mirrors (12 and 14) and is arranged to give an inherent aperture and field greater in one direction than another. By using a low power eye piece lens means it is possible to arrange for the user's eye or eyes to be further behind the said means so he can wear his normal spectacles to correct for eye defects. When a pair of systems is used in a pair of binoculars, it is possible for the exit pupils to be in the form of horizontal slots so the systems do not have to have adjustable spacing to allow for the user's eye separation.
Patent GB-2250549-A (GB)
Title: Roller bearing surfaces with low molecular weight PTFE layer
Inventor: KONDO HIROMITSU
IPC: F16C33/62
Filed: 1991-11-27
Abstract: A rolling element bearing has surfaces of the inner and outer rings 1 and 2 and the surfaces of the rolling elements 3 formed with lubricating films 1a, 2a and 3a of polytetrafluoroethylene having average molecular weight of not more than 5000 (PTFE (A)). PTFE heretofore used for rolling bearings is a polymer having average molecular weight of more than 1 x 10<5> mostly 1 x 10<6> - 1 x 10<7>, but PTFE(A) is very low in shear strength and soft as compared with PTFE polymer, and reduces the friction coefficient and dust producing rate. Suitable for use in vacuum/air processes. <IMAGE>
Patent GB-2263226-A (GB)
Title: Pine needle receptacle
Inventor: BRACCHI ROBERT CHRISTOPHER GUY
IPC: A47G33/04
Filed: 1992-01-07
Abstract: A receptacle 11, for catching fallen pine needles. The receptacle is attached to a tree 3 so that it lies below the branches thereof thus forming a shelf. It is easily assembled and can be varied in size according to functional and aesthetic factors. <IMAGE>
Patent GB-2265083-A (GB)
Title: Christmas tree debris collection device
Inventor: SUTHERLAND STUART DEANE
IPC: A47G33/04
Filed: 1992-03-17
Abstract: A Christmas tree foliage and debris fall collection device comprises a support 3 for a Christmas tree 1 together with a foliage and debris collection vessel 5 beneath the tree, extending outwardly from the attachment 4 of the support to the trunk of the tree to receiving falling foliage or debris. <IMAGE>
Patent GB-2255201-A (GB)
Title: Optical fluid filter having displaceable light transmitting members
Inventor: CALLAGHAN JAMES ROBERT
IPC: G02B5/24
Filed: 1992-04-27
Abstract: A filter for a light beam comprising mutually opposed light transmitting membranes 41, 42 containing between them a light obstructing or modifying fluid material; the membranes 41, 42 being displaceable relatively against one another to expel said material out of an area of the membranes to permit the incident light to pass through the membranes. Electrical devices 51, 53 change in axial length in response to the application of electrical power which causes plates 41 and 42 to contact each other and expel mercury from the central region allowing light to pass through 45a, 50c, 51a, 41, 42, 53a, 52c and 47a in the example shown. <IMAGE>
Patent GB-2256442-A (GB)
Title: Mechanical take-off device for circular knitting machine
Inventor: FUCIK MILAN
IPC: D04B15/88
Filed: 1992-06-02
Abstract: A take-off device for a circular knitting, especially a double-cylinder, machine consists of two cooperating co-axial take- off elements (6, 7) between which knitwork is caused to pass one (6) being stationary and one (7) rotary and which are provided with helical surfaces (61, 71) of opposite thread. The helical surfaces may be provided on outer and inner surfaces of coaxial cylindrical members in another embodiment. Suction may also be provided. <IMAGE>
Patent GB-2258445-A (GB)
Title: Counter balancing camera suspension apparatus.
Inventor: HILL KENNETH ROY
IPC: F16M11/04
Filed: 1992-06-12
Abstract: A suspension apparatus that supports the weight of a mobile camera includes a yoke 14 rotatable about a vertical axis 18 on a wheeled base 16. A primary lever arm 20 has a media portion 26 pivotably mounted on the yoke. A secondary arm 28 has a first end pivot to the end 24 of the primary lever arm, and a second end 32 including a support 35 for the camera. A counterweight arm 36 with weights 44 is pivoted to the end 22 of the primary lever arm. A chain drive mechanism, 54 is responsive to pivoting of the secondary arm 28 about the end 24 of the primary lever arm 20 in a first sense to pivot the counterweight arm 36 about the end 22 of the primary lever arm in a second opposed sense. In addition, the apparatus includes a chain drive mechanism 70, 72 for maintaining the camera level relative to the base as the secondary arm 28 is pivoted about the end 24 of the primary lever arm 20. <IMAGE>
Patent GB-2260658-A (GB)
Title: Electrical connector with module holder
Inventor: KANAI HIROSUMI
IPC: H01R13/506
Filed: 1992-10-12
Abstract: An electrical connector assembly includes a holder (40) for detachably holding modules (50a, 50b), the holder/module subassembly being received within a connector (60). The holder (40) includes a wall plate (41) and apertured plate (42) and locates two modules (50a, 50b) by projections (45, 46) and latches (43). The modules each include contacts connected to wires (53) and projections (55) locate the subassembly via grooves (63) in the connector (60), with connector through contacts (61) engaging the module contacts via the plate apertures (42a). Optional holder latches (49) engage the connector (60). The contacts (61) and post (65) engage a pcb along axis (A) at right angles to the direction of engagement of modules (50a, 50b) with holder (40). <IMAGE>
Patent GB-2262510-A (GB)
Title: Protective packing members
Inventor: KATAOKA HACHIRO
IPC: B65D85/68
Filed: 1992-10-16
Abstract: A sheet of corrugated paper for producing a packing member has (i) two parallel central creases A extending from one edge 30 of the sheet to an opposed edge 31 thereof, (ii) five wall members 10 to 14 (iii) two first end sections 1, (iv) two outer side sections 2 located outside the wall members and the respective central creases A, (v) two top sections 3 located outside the respective outer side sections 2, (vi) two inner side sections 5 partly surrounded by the respective top sections 3, (vii) two bottom sections 6 located outside the respective inner side sections 5, and (viii) two pairs of second end sections 20 located outside the respective inner side sections 5. Each wall member 10 - 14 is partly defined by an inclined crease 25 making an angle of 45 degrees with the central crease A. The sheet may be designed to fold to a straight or generally right angled packing member. <IMAGE>
Patent GB-2282080-A (GB)
Title: Steering mechanism for a vehicle toy.
Inventor: SUIMON YOSHI
IPC: A63H17/36
Filed: 1993-09-22
Abstract: A steering device for an automotive vehicle toy comprises a motor, a steering mechanism, and a clutch for transmitting a driving force of the electric motor to the steering mechanism. The clutch 14 includes a holding disc 16 attached to the shaft 13a, clutch elements 17 engageable with the holding disc such that they can be moved radially by a centrifugal force, and an outer cylindrical member 18 concentrically accommodating the holding disc and the clutch elements in it and firmly secured to the steering mechanism. A plurality of engaging groove portions 16a are formed in the holding disc at equal spaces through a partition wall 16b. An element engageable with the engaging groove portions is formed on an inner side of each clutch element. Each engaging element has a cut portion engageable with the partition wall. The clutch elements are engaged with either the engaging grooves or the partition wall see Figs. 6 and 7. The outer cylindrical member 18 may have heat releasing holes 18b formed in an end wall 18a thereof.
Patent GB-2271778-A (GB)
Title: Shaving gels
Inventor: DUNBAR PETER
Filed: 1993-03-19
Abstract: Water-based non-foaming shaving gels are disclosed comprising from 0.05 to 4.0 % of a carboxypolymethylene, from 2.00 to 52.0 % of a polyhydric alcohol and optionally also containing a silicone derivative, an antipruritic agent, preservative agents, a chelating agent, a neutralising agent, a solubilising agent, a UV light absorbing agent or a perfume. The preferred polyhydric alcohol is glycerin. The gel is applied directly to dry skin and hair prior to shaving with a razor blade and provides a close, comfortable and well lubricated shave.