baber/WOPTO huggingface dataset:
Patent GB-2159523-A (GB)
Title: Stereospecific catalyst for polymerising olefins
Inventor: TAJIMA YOSHIO
IPC: C08F10/00
Filed: 1984-09-21
Abstract: A process for preparing a polyolefin by polymerizing at least one alpha -olefin in the presence of a catalyst, said catalyst comprising the combination of the following components [I], [II] and [III]:   [I] a solid catalyst component obtained by supporting a titanium compound (5) on a solid material, said solid material being obtained by contacting the following components (1)-(4):     (1) a magnesium halide,   (2) at least one compound represented by the general formula   <IMAGE> wherein R<1>, R<2> and R<3> are each a hydrocarbon radical having 1 to 24 carbon atoms, an alkoxy group, or a hydrogen or halogen atom, R<4> is a hydrocarbon radical having 1 to 24 carbon atoms and n is 1</=n</=30, (3) a compound represented by the general formula O l P(OR<5>)3 wherein R<5>s, which may be alike or different, are each a hydrocarbon radical having 1 to 24 carbon atoms and  l  is 0 or 1, and (4) a compound represented by the general formula CH3COOR<6> wherein R<6> is a hydrocarbon radical having 1 to 24 carbon atoms, or a compound represented by the general formula R<7>OR<7> wherein R<7>s, which may be alike or different, are each a hydrocarbon radical having 1 to 24 carbon atoms;     [II] an organometallic compound; and   [III] a compound represented by the general formula   <IMAGE> wherein R<1>, R<2> and R<3> are each a hydrocarbon radical having 1 to 24 carbon atoms, an alkoxy group, or a hydrogen or halogen atom, R<4> is a hydrocarbon radical having 1 to 24 carbon atoms and n is 1 </= n </= 30.
Patent GB-2158726-A (GB)
Title: Crossbow trigger apparatus
Inventor: BARNETT BERNARD
IPC: F41B5/18
Filed: 1984-10-29
Abstract: A crossbow includes a trigger 40 pivotally mounted on the stock, a bowstring catch 50 pivotally mounted on the stock a substantial distance rearward of the trigger, and an elongated pivotal rod 60 extending between the trigger and the catch. Pivotal movement of the trigger causes pivoting of the rod to release the catch to permit release of the cocked bowstring 32. A locking mechanism 72 may be provided. The catch may be integrally formed on the rear end of the rod. <IMAGE>
Patent GB-2152381-A (GB)
Title: Physiotherapy table for traction and/or massage
Inventor: MOOMAW BENJAMIN CLOVIS
IPC: A61H1/02
Filed: 1984-11-23
Abstract: A treatment table for use by a chiropractor or a physiotherapist has a surface (5) on which a patient can lie face down in a prone position and which is pivoted (at 14) to allow it to be tilted through almost 180 DEG  from an upright position and locked in any position (27). Grips, such as overboots (20), are provided at various points of the table so the patient is securely held to it, even when inverted. Mechanical traction devices which are electrically operated may be provided between sections of the table surface to enable the table to be used for mechanical traction therapy as well as manipulative therapy. <IMAGE>
Patent GB-2152571-A (GB)
Title: Corrugated roof
Inventor: BURTON JOHN ARTHUR
IPC: E04D13/16
Filed: 1984-12-27
Abstract: In a method of thermally insulating a roof having an inner skin and an outer skin of corrugated sheet holes are formed in the outer skin and thermally insulating material such as foam or mineral fibre is injected to fill any void before sealing the holes.
Patent GB-2173523-A (GB)
Title: Producing mats of fibres from a molten material
Inventor: BATTIGELLI JEAN A
IPC: D04H1/00
Filed: 1985-04-11
Abstract: The invention relates to techniques for producing mats of mineral fibres. In the techniques under consideration, a molten material is passed into a centrifuge 16, the periphery of which is provided with orifices, the material passing through these orifices being thrown out of the centrifuge in the form of filaments, a gaseous current passing over the periphery of the centrifuge entraining the filaments and completing the process of drawing them. The gaseous current, initially of annular form closes up again downstream of the centrifuge so that it can then form a current of substantially conical shape. According to the invention, additional fibre particles are introduced by a ducting 23, carried by a gaseous current which is directed transversely in relation to the direction of progress of the gaseous current carrying the newly formed fibres and penetrating into this latter at a point situated between the centrifuge and the zone of narrowing of the current carrying the fibres. <IMAGE>
Patent GB-2161348-A (GB)
Title: Radiation heater reflector
Inventor: MCWILLIAMS JOSEPH ANTHONY
IPC: F24S23/70
Filed: 1985-05-31
Abstract: A reflector for a radiation heater comprises a plurality of reflecting sections (10) which are positioned substantially in a plane so as to intercept portions of radiation emitted by a radiation source (9) and to reflect the radiation in a predetermined direction. The edges of the reflector may extend out of the plane in order to prevent radiation escaping around the edges of the reflector. The reflecting sections (10) may incorporate a peaked portion (11) which is positioned so as to oppose the or each radiation source (9) in order to obtain a more even distribution of reflected radiation. <IMAGE>
Patent GB-2162851-A (GB)
Title: beta -urogastrone gene
Inventor: AOKI SHIGEMASA
IPC: C12P21/02
Filed: 1985-07-01
Abstract: The present invention provides a gene which is suited to the expression of  beta -urogastrone, corresponding recombinant plasmids, corresponding transformants and preparation thereof and of  beta -urogastrone.
Patent GB-2163612-A (GB)
Title: Electrical components
Inventor: BOSLEY SYDNEY STANLEY
IPC: H01H85/20
Filed: 1985-07-03
Abstract: An in-line fuse holder 10 incorporating as a thermal barrier an insert 53 comprising a square piece of paper 52 rolled into tubular form. The inner surface of the paper is printed with a metallic coating 54 in a pattern of squares separated by discontinuities 56 which prevent shorting. The heat-insulating properties of the paper 52 and the reflective properties of the coating 54 protect the holder 10 when the element of the fuse 47 heats up under overload and improve its capability to fail when loaded above its rating. Other forms of thermal shield cut for example from adhesive-coated sheet are used to protect fuse housings and printed circuit boards. <IMAGE>
Patent GB-2165689-A (GB)
Title: High voltage cables
Inventor: MARSH TIMOTHY GEORGE
IPC: H01B9/02
Filed: 1985-09-04
Abstract: A high voltage cable has a central conductor surrounded by two extruded layers of insulation with the innermost layer 2 being of higher permittivity than the outer layer 5 so that the average stress is reduced close to the conductor and increased away from it. Semiconductive layers 3, 4, 6, 7 may be provided. Layers 3, 4 may be made of ethylene copolymer with C. The insulation layers may be made of ethylene, propylene rubber with mica, cross-linked polyethylene with carbon black or an ethylene copolymer with mica. Each insulation layer 2, 5 is extruded between two semiconductive layers so that no dust particles can contaminate the insulation. <IMAGE>
Patent GB-2182033-A (GB)
Title: Dielectric compositions
Inventor: ALEXANDER JOHN HENRY
IPC: C04B35/497
Filed: 1985-10-24
Abstract: Dielectric compositions for ceramic capacitors which fire at low temperature comprise non- stoichiometric lead magnesium niobate on its own or with one or more additives, up to the 10 wt% level, selected from the group consisting of simple oxides, complex oxides and other relaxor materials. The additives serve to modify the properties of the lead magnesium niobate, typically by increasing the dielectric constant or changing the temperature coefficient of capacitance to bring it within predetermined limits, e.g. Z5U.
Patent GB-2166460-A (GB)
Title: Device for the double-sided consolidation of fibre fleece
Inventor: OFFERMAN PETER
IPC: D04H1/52
Filed: 1985-10-24
Abstract: On a stitch-bonding machine, by which the fibre fleece to be consolidated on both sides is pierced by two needle systems, the two needle systems (1, 2) are disposed so as to be offset in height by an amount which changes in the operating cycle, so that the needle points prior to piercing the fibre fleece (7) are in each case moved vertically by a certain amount, the needle points of the two needle systems (1,2) masking one another in their oppositely directed extreme positions (a). <IMAGE>
Patent GB-2168347-A (GB)
Title: Indoles
Inventor: BAYS DAVID EDMUND
IPC: A61K31/40
Filed: 1985-12-12
Abstract: Novel indoles of the general formula (I):   <IMAGE>  wherein R1 represents hydrogen, alkyl, cycloalkyl, alkenyl, phenyl or phenyl alkyl in which the phenyl ring may be unsubstituted or substituted by one or two substituents selected from alkoxy, hydroxy, halogen, a group R5R6NCO- where R5 and R6 each represents hydrogen or alkyl, or a group R7R8N-, where R7 and R8 each represents hydrogen or alkyl, or R7R8N- represents a saturated monocyclic 5- to 7- membered ring;  R2 represents hydrogen or alkyl; or R1 and R2 together with the nitrogen atom form a saturated monocyclic 5- to 7-membered ring;  R3 and R4 each represents hydrogen, alkyl or a 2-propenyl group; and  n is an integer from 2 to 5; and physiologically acceptable salts and solvates thereof have selective vasoconstrictor activity and are useful in treating and/or preventing pain resulting from dilatation of the cranial vasculature, in particular migraine.
Patent GB-2184962-A (GB)
Title: Expansible drill
Inventor: PAYNE DAVID PATRICK
IPC: B23B51/00
Filed: 1986-01-07
Abstract: The drill 10 comprises a cylinder 12, one end 11 of which is slotted and incorporates an external cutting edge. Means 24 drives the drill cylinder 12 bit and a frusto-conical wedge 17 thus moving the wedge axially relative to the drill by means of threaded shaft 14 to form a drill hole having a undercut inner end portion in a building component which requires an expanding bolt to secure other components or fixings thereto. Such holes are advantageous over cylindrical holes in that there is an increase in the contact area between the fixing and the hole and in that they physically prevent properly fitting fixings from being pulled out of the hole. <IMAGE>
Patent GB-2172355-A (GB)
Title: Brake control system for a railway vehicle
Inventor: FOURIE EUGENE
IPC: B60T8/17
Filed: 1986-03-05
Abstract: A deceleration control system in which an operator's brake valve device (10) provides corresponding pneumatic (PR) and electric (RBV) brake demand signals in accordance with a selected handle (11) position. The pneumatic brake demand signal (PR) controls a blending valve device (15) to establish the maximum level of friction braking, and the electric brake demand signal (RBV) is compared to an actual rate of retardation signal (V) to provide a rate error signal (RE) that acts via a transducer (21) of the blending valve (15) to reduce the effective friction braking to the extent that the rate of retardation exceeds the brake demand. The electric brake demand signal (RBV) is limited in accordance with a speed/adhesion characteristic (44, 51) while a further circuit (44, 47, 72) slip modulates the brake demand signal (RBV). <IMAGE>
Patent GB-2190948-A (GB)
Title: Floor structures
Inventor: BARTLETT DAVID IAN
IPC: B65D88/74
Filed: 1986-05-27
Abstract: An aerated floor structure for a crop storage unit e.g. grain, comprises overlapping elongate members 12, 14 arranged to support these grain 18 as shown and allow an upward (or downward) flow of ventilating air between the upper members 12. <IMAGE>
Patent GB-2190835-A (GB)
Title: Resistance imparting agent for cold syndrome
Inventor: NAGAHAMA FUMIO
IPC: A61P11/00
Filed: 1986-05-28
Abstract: The agent is the organogermanium compound:
 
<IMAGE>
 where A and B are hydrogen or lower alkyl groups,
 R is a combination of one or two of the groups represented by A and B,
 and X is oxygen or nitrogen. 
<??>Administration of this agent to patients having a low pulmonary function, e.g. sufferers of pneumoconiosis, results in a resistance to the cold syndrome.
Patent GB-2177886-A (GB)
Title: Spreading material on a surface
Inventor: VAN DER LELY ARY
IPC: A01C15/00
Filed: 1986-06-03
Abstract: An agricultural spreader comprises distribution members (11, 12) which rotate to eject material such as fertilizer. The spreader can tilt to one side or the other so as to reduce the spreading distance on one side. This facility enables the spreader to be driven on a field along the same tracks as other agricultural machinery while avoiding waste of material at the edges of fields. Other embodiments utilize braking members which are movable into the path of ejected material to reduce its kinetic energy and consequently its spreading distance.
Patent GB-2179274-A (GB)
Title: Toner apparatus
Inventor: SPENCE-BATE HARRY ARTHUR HELE
IPC: G03G15/10
Filed: 1986-07-25
Abstract: In order to tone a latent image on an electronically charged film (1), a plate (3) is provided at a toning station, over which plate toner can flow and remain on by surface tension, the toner flowing from a source (8...) to an aperture (5) in the plate. In order to drain off small amounts of excess toner present a drain (13) is provided which is connected to a container (12) or groove around the plate. The use of surface tension to cover the plate enables small amounts of toner to be used so that circulation of toner can be avoided. <IMAGE>
Patent GB-2179620-A (GB)
Title: Packaging and extrudable product
Inventor: SMITH ROBERT MURRAY
IPC: B65B25/06
Filed: 1986-08-15
Abstract: In the manufacture of individually wrapped slices of processed cheese, a tube of film plastics material filled with a hot mass of cooked cheese is passed between a rotating vacuum wheel 17 and a contra-rotating pressure wheel 16 which subdivides the cheese in the tube into separate portions each in the shape of a thin slice with the parts of the tube between the portions compressed into flat webs, the tube is then passed between the rotating vacuum wheel and a contra-rotating cutter wheel 18 which severs the webs to divide the tube into separate sections each containing a thin portion of cheese still in an extrudable condition, and the sections are deposited on a conveyor for transport to a cooling chamber to solidify the cheese. The tube is held by vacuum against the vacuum wheel during passage from the pressure wheel to the conveyor. <IMAGE>
Patent GB-2194478-A (GB)
Title: Joining hollow members
Inventor: HENDERSON WILLIAM IAIN MACKIE
IPC: B23K35/26
Filed: 1986-08-30
Abstract: Extruded aluminium frame members 1 and 2, reinforced with the filling of rigid foam plastics material, are joined together end to end by: removing the foam from the ends to be joined; holding the ends in position eg by riveting in place a corner plate 10; and then filling the cavity, formed by removal of the foam, with a low melting point alloy at a temperature sufficiently low to avoid damaging the foam or causing bending of the extruded members. The resulting join provides a seal against electromagnetic interference and is useful in the construction of radar shelters. <IMAGE>
Patent GB-2182524-A (GB)
Title: Picture image input/output system
Inventor: URABE HITOSHI
IPC: G03F3/08
Filed: 1986-10-31
Abstract: The conventional picture image input/ output system is defective in that it has a large number of complicated processing steps, and therefore requires sophisticated skill and a large amount of time and labor. A lay-out retouch system has been proposed for the processing step in printing plants in recent years, but it needs a medium of a large capacity such as a magnetic disk for storing data on original color pictures, and requires a high speed computer for editing process, thereby increasing the cost of the system inconveniently. The present invention correlates sets of co-ordinates in the apparatus i.e. those of the digetiser board 20 with the input drum 10 and the output drum 30. Thus enabling processor 53 and computer 51 to carry out manipulation of the selected images on the input drum and reproduce them with desired layout and sizes on the output drum. Layout is effected with the aid of graphic display 52. <IMAGE>
Patent GB-2183747-A (GB)
Title: Piston and cylinder assembly including a seal arrangement
Inventor: TOEPPERWIEN BERND
IPC: B60T11/236
Filed: 1986-11-19
Abstract: A piston and cylinder assembly, in particular for hydraulic actuating mechanisms in automotive vehicles, comprises a piston (4) guided in a cylinder housing (2) in a cylinder bore (3). The piston (4) is provided with an annular step (5), whereon a sealing ring cup (6) of a seal arrangement, having a U-shaped cross-section is arranged, which sealing ring cup has a radially inner sealing lip (17, 18) abutting on the annular step (5) and a radially outer sealing lip (17, 18) sliding in the cylinder bore (3). The master cylinder (1) is provided with a supply connection (16, 12, 10 and 23), permitting, in the event of a drop of pressure from a supply chamber (12) to a pressure chamber (29), a flow of pressure fluid into the pressure chamber (29) past the radially inner sealing lip (17), the inner sealing lip (17) being moved radially inwards by means of the pressure fluid. In order to achieve an optimal reduction of the idle travel occurring and a better mastery of the tolerances, the radially outer sealing lip (18) of the sealing ring cup (6) is guided in the cylinder bore (3) and bears against the spring plate (31) in axial direction, the sealing ring cup (6) is provided on its side directed away from the pressure chamber (29) with a circular recess (33) receiving the backing washer (13), and the supply connection is constituted by means of radially inner channels (10) running axially.   <IMAGE>
Patent GB-2204143-A (GB)
Title: Spectacle structure
Inventor: WICHERS DR MAX FREDERICK
IPC: G02C3/00
Filed: 1987-04-23
Abstract: A spectacle structure comprises a front member (11) to which is mounted a pair of spectacle lenses (16), e.g. by means of a hinge (15). A pair of temple members (12, 13) extend rearwardly from the front member (11) to engage the rear of the head of a wearer below the occipital prominences. A curved brow member (14) is rigidly connected to the front member (11) at a forward point (19). When the temple members (12, 13) are wrapped around the head, the brow member (14) engages the forehead above the eyebrows. The structure thus provides a comfortable support for the spectacle lenses without resting on the ears and nose. <IMAGE>
Patent GB-2204431-A (GB)
Title: Digital signal processing and transducer array beamforming
Inventor: RAWSON-HARRIS HERBERT DOUGLAS
IPC: G10K11/34
Filed: 1987-04-25
Abstract: A method of forming a directed reception beam sample for an array of transducer elements by time-interpolation of transducer samples taken at predetermined intervals comprises deriving and storing in advance for a particular beam direction, and for each of a set of succeeding sampling intervals, coefficients representing proportions of individual transducer samples taken in the interval utilised to form interpolated values and then multiplying each of the appropriate transducer samples as they are taken by appropriate stored coefficients and accumulating the products. A pipelined digital signal processor 10 (Fig. 2) performs the operation 15, 16 using transducer samples input via 11 and stored coefficients input via 12. To process transducer samples which arrive interleaved with those of different beam samples a feedback path of the accumulator 17 includes a dual port memory 24 to receive at 23 a partially accumulated beam sample formed by receipt of one transducer sample whilst providing a different partially accumulated beam sample to the feedback path for the next transducer sample. A multiplexer 20 permits direct feedback from accumulator output register 10 omitting the memory 24 when successive transducer samples contribute to the same partially accumulated beam sample. <IMAGE>
Patent GB-2195837-A (GB)
Title: Electrical earth connector
Inventor: ROBINSON CLIVE DICKSON
IPC: H01R4/24
Filed: 1987-06-02
Abstract: An electrical earth connector comprises a rigid metallic body (20) having a terminal (21) adapted for connection to a conductor, a recess (25) arranged to receive a portion of an article to he earthed, a threaded 22 aperture (23, 24) in said body intersecting said slot, and a screw (22) disposed in said aperture, wherein the end of the shank of said screw has one or more projections adapted to cut a coating upon the surface of an article received in the recess to provide a good electrical connection of the article to a conductor engaged to said terminal. <IMAGE>
Patent GB-2205289-A (GB)
Title: Brake-housing cleaning means
Inventor: WILLIS TREVOR
IPC: B08B15/02
Filed: 1987-06-05
Abstract: The housing (10) for use in cleaning an object which is soiled with a hazardous or other dust, such as a brake drum (11), and which forms an enclosure in which the object can be contained and on which cleaning operations can be carried out under the control of an operative positioned externally of the housing. The housing comprises a closable opening (12) through which the object can be taken to enter and to leave the housing, a pair of sealed openings (13) in the wall (14) of the housing, and a respective glove (15) mounted in each opening (13) and capable of being taken into the housing to enable cleaning operations to be carried out under manual control by the external operative. A viewing window (16) is provided in the wall of the housing (10) to enable the manual cleaning operation to be viewed, and a suction inlet is provided in the wall of the housing, to which a suction hose can be connected, to permit the interior of the housing and dust therein to be discharged to a safe discharge station. <IMAGE>
Patent GB-2196075-A (GB)
Title: Braking system
Inventor: KREMER ENGINEER VALERIAN
IPC: B60T13/22
Filed: 1987-09-09
Abstract: The invention relates to a safety braking system for the transport means in a mine which has a brake released by venting a space 8. A safety brake control 39 has a valve means 40 providing control of the brake pressure release in a controlled reproducible manner. In particular, a directly actuated pressure relief valve 43 has its opening controlled via cam control means 49 which in turn is moved by a hydraulic cylinder 53. The speed of operation of the cylinder 63 is controlled by an energy source charging apparatus 57 which has an adjustable throttle means 65.
Patent GB-2212269-A (GB)
Title: Rheometrics and viscoelasticity measurement
Inventor: GEORGE ALAN
IPC: G01N11/04
Filed: 1987-10-09
Abstract: A viscoelastic measurement device comprising a measurement chamber (10) to receive a sample whose viscoelasticity is to be measured,  a displacement member (11)located in said chamber, displacement means (34) for displacing the displacement member within the measurement chamber and thereby applying a deformatory stress to a sample located therein, measurement transducer means (35) for detecting the input deformatory displacement, measurement transducer means (35) for detecting the output or reaction deformatory movement or action of the sample, calculator means (211)for calculating the viscoelasticity from the input and output data.
Patent GB-2201042-A (GB)
Title: Heat sink assembly
Inventor: MYERS CHRISTOPHER HENRY GEORGE
IPC: H05K7/20
Filed: 1988-01-08
Abstract: A heat sink assembly comprises a pair of extruded heat sinks (1, 2) each having fins and a re-entrant slot (6, 7), and a connector (5) having respective portions (12, 13) adapted to engage in the slots. <IMAGE>