baber/WOPTO huggingface dataset:
Patent GB-1285740-A (GB)
Title: Improvements in and relating to heat exchangers and air-conditioning apparatus
IPC: F28F13/06
Filed: 1969-12-10
Abstract: 1285740 Tubular heat exchangers; headers SOC ANON FRANCAISE DU FERODO 10 Dec 1969 [13 Dec 1968] 60271/69 Heading F4S A trough-shaped header tank 20 of a finned tubular heat exchanger matrix 10 which may form part of an air conditioning unit, is provided with at least one integrally moulded projection adapted to co-operate with a casing of the unit to locate or seal the heat exchanger therein. As shown in Fig. 1 the projection comprises a rib 21 which is received by a corresponding groove 34 in the wall 25 of the casing. Alternatively the header may be formed with the parallel ribs (26, 27, Fig. 2) defining therebetween a groove (29) adapted to receive a co-operating trapezoidal shaped rib (30) formed on the casing wall (31). The ribs may extend across the end face of the header (see Figs. 3 and 4). In further embodiments (Figs. 5-8) the header tank, which may be of plastics material, is formed with a thin flexible tongue or flange which co-operates with the surface of the casing to make a gas-tight seal.
Patent GB-2023621-A (GB)
Title: Densification of Polypyrrolidone
IPC: C08G69/46
Filed: 1978-06-21
Abstract: Polypyrrolidone produced by bulk polymerisation has too low a bulk density to be fed without difficulty into a melt spinning extruder. It is therefore normal to melt extrude the dry polypyrrolidone powder to form dense pellets suitable for feeding into melt spinning extruders, but this has the disadvantage of degrading the weight average molecular weight from a high initial value to a relatively low value. The present invention provides a method of increasing the bulk density of powdered polypyrrolidone without substantially degrading its molecular weight which involves compression of the powdered polypyrrolidone having a certain water content of an elevated temperature which is lower than the melting point of polypyrrolidone, and reduction of the moisture content of the compressed polymer to yield a solid product of bulk density 20 to 50x0.016 g/cc at a moisture content below 1 wt.%.
Patent GB-2004102-A (GB)
Title: Control of overhead conveyor installation
IPC: B61L3/00
Filed: 1978-07-31
Abstract: The installation includes a fixed supporting structure 1, self-propelled mobile vehicles 2, at least one fixed electrical power supply line 3,6 arranged along the structure 1, vehicle carried power pickup wipers 5,8 and a conductive control line 9 divided into sections 9a, 9n arranged all along the structure. Each vehicle carrying means for controlling it to first or second speeds in response to a sensor 10 thereon determining the presence or absence of a voltage on the line section occupied by the vehicle and means on each vehicle for applying a voltage to the occupied line section. <IMAGE>
Patent GB-2002370-A (GB)
Title: Nitrosourea compounds and process for preparing the same
IPC: A61K31/17
Filed: 1978-07-31
Abstract: Compounds of the general formula:   <IMAGE> wherein R<1> is alkyl of one to twelve carbon atoms which may be optionally substituted by hydroxy or acryloxy, alkeny of three to five carbon atoms or alkynyl of three to five carbon atoms, R<2> is aldo-pentofuranosyl, aldo- pentopyranosyl, aldo-hexopyranosyl, O-aldo-hexopyranosyl-(1->4)-aldo- hexopyranosyl or a group of the formula: CH2(CHOH)nCH2OH, and n is zero or one to six, which may be prepared by nitrosation of a compound of the general formula:   <IMAGE> wherein R<1> and R<2> have the meanings given above are useful as anti-tumor or anti-leukemic agents.
Patent GB-2004653-A (GB)
Title: Semiconductor gas detecting elements
IPC: G01N27/16
Filed: 1978-09-04
Abstract: This invention describes a catalytically inactive gas-detecting element for gas-measuring apparatus of the kind comprising a coil of platinum or platinum alloy 1 which is enveloped by a glassy-coated 3 body 2 of metal oxide. According to the invention the glassy-coating 3 contains a phosphate and/or a borate as a main component and an alkali oxide, an alkali hydroxide or an alkali earth oxide as an additional component. The main component may include compounds of gallium, tin, antimony or germanium. Such an element may be manufactured by applying a glass- forming substance to a metal oxide body from aqueous solution by dipping the body in a concentrated solution of the glass-forming substance and thereafter heating the body which has become impregnated in this way at a temperature of between 400 DEG C and 700 DEG C, preferably at approximately 500 DEG C. In specific examples, the body is dipped in a concentrated solution of an alkali phosphate or borate. <IMAGE>
Patent GB-2005342-A (GB)
Title: A hinge connection
IPC: F02D11/04
Filed: 1978-09-29
Abstract: A hinge connection between two parts (1 and 3), especially two parts (1 and 3) of a throttle control rod of a passenger vehicle, which are pivotable relatively to each other about one axis by virtue of the connection, comprises an axially fixed synthetic plastics bearing bush (5), which is positioned in a bore (4) in one of the parts (1) with a first collar (6) of the bush (5) bearing against that part (1), and in which bush (5) is arranged a circumferentially channelled journal pin (3') of the other part (3) which is axially fixed by a bead (8) of the bush (5), the bead (8) extending radially inwardly so as to engage the circumferential channel (7), in which connection the said synthetic plastics bearing bush (5) has a second collar (6') and bears by way of both collars (6 and 6') tightly against the part (1) in which the bearing bush (5) is positioned. <IMAGE>
Patent GB-2007284-A (GB)
Title: Insulating Building Blocks
IPC: E04C1/41
Filed: 1978-10-18
Abstract: A building block or like comprises two slabs (10, 14) secured by headed pins (12). One slab (10) is of preformed cementitious material and the pins, e.g. screws, are inserted into it prior to casting the slab (14). The slab (14) is cast so as to embed the heads of pins (12) while leaving a cavity between the two slabs. The block may be in the form of a brick to be used with like blocks for building a wall or the block may comprise a panel. The heads of the pins may be interconnected by tie wires (18). The first slab is preferably lightweight aggregate thermally insulating material and the second slab is preferably glass reinforced cement or polyester. <IMAGE>
Patent GB-2024098-A (GB)
Title: Log splitter
IPC: B27L7/00
Filed: 1979-01-18
Abstract: A base 2 for supporting the log is forced upwardly against a wedge 6 vertically adjustably mounted in a frame. <IMAGE>
Patent GB-2045091-A (GB)
Title: Improvements in or relating to facepieces
IPC: A41D13/11
Filed: 1979-03-19
Abstract: A one-piece moulded facepiece (10), for example for a respirator, has a face aperture (11) for engagement by the face of a user and a pair of flexible, annular sealing flaps (14, 15) extending generally inwardly of the face piece (10) adjacent the face aperture (11) and arranged to define with the face of a user an annular air enclosure. The flaps (14, 15) define a channel of substantially c-shaped cross-section. <IMAGE>
Patent GB-2017215-A (GB)
Title: Fluid Pressure Responsive Accessory Equipment
IPC: F15B1/08
Filed: 1979-03-27
Abstract: A hydraulic pressure responsive accessory, such as a cavitation eliminator for a hydraulic system, comprises a casing 12 having an inlet 22 for connection to the hydraulic system, and an easily replaceable gas filled flexible bladder 44 which compresses and expands in response to pressure fluctuations in the system. The ends of the bladder are releasably secured to the casing end cap 16 and end wall 20 by securing means 52, 54 accessible externally of the casing. A leaf spring 200 is provided between the bladder 44 and a grid 26 overlying casing inlet openings 24 thereby to protect the bladder 44 from impact damage with the grid 26, and means 210 connected with the leaf spring provide indication of excess bladder pressure or automatic release of excess pressure. <IMAGE>
Patent GB-2020360-A (GB)
Title: Centrifugal pumps
IPC: F04D29/44
Filed: 1979-04-24
Abstract: The pump has a volute member (11) with a cavity in which an impeller (40) with blades (56) is rotatably mounted and a collector channel (70) is formed in the wall of the cavity, the channel (70) having a progressively increasing area to progressively gather fluid as the impeller rotates for delivery to a throat (60) and a diffuser (61). <IMAGE>
Patent GB-2029881-A (GB)
Title: Metallic multi-layer composite material
IPC: F01D5/28
Filed: 1979-04-25
Abstract: A metallic multi-layer composite material suitable for components which are highly stressed both thermally and mechanically e.g. aircraft and spacecraft skin panels or turbine blades comprises a substrate 2 of titanium or titanium alloy to which is brazed a first layer 3 of fibre-reinforced aluminium to which is brazed a second layer 4 of wear and abrasion-resistant metal. The first layer can be of aluminium reinforced with boron carbon, alumina or silicon carbide fibres and the second layer can be of steel or titanium. When the second layer is steel it is plated with aluminium or aluminium alloy vapor deposited to act as brazing material. When the second layer is titanium its oxide film has been removed and replaced by copper, magnesium, zinc, silver or silicon in vacuum to similarly act as brazing material. <IMAGE>
Patent GB-2022801-A (GB)
Title: An Energy Recovery System for Use on a Printing Press or the Like
IPC: B01D53/44
Filed: 1979-05-14
Abstract: Solvents evaporated in the dryer sections B1, B2, B3 of a multi-station printing press or the like are removed from the dryer exhaust by heating the dryer exhaust C in an oxidation chamber E. The oxidation chamber exhaust is utilised, as a source of heat for the air supplies of the dryers, a regulated portion of the heated oxidation chamber exhaust being recirculated to the dryer sections to form a portion of the air supplies thereof. The recirculated oxidation chamber exhaust is confined within a completely enclosed system to prevent exposure of the pressroom personnel thereto. In addition, a heat exchanger may be utilised to transfer a portion of the remaining heat from the non-recirculated portion of the oxidation chamber exhaust to fresh air in order to heat the pressroom. <IMAGE>
Patent GB-2023453-A (GB)
Title: Costing of substrates
IPC: B01J37/02
Filed: 1978-10-23
Abstract: The invention is concerned with providing substrates with coatings obtainable from sols, for example to protect the substrate (such as in nuclear reactors or hydrocarbon cracking plant) or to provide a carrier for catalytically active material. Hitherto, coatings obtained from sols have had a high porosity and high surface area so that they have not been entirely satisfactory for the above applications. In the invention, dense, low-porosity coatings are provided by contacting the substrate with a sol of refractory material (e.g. CeO2 or SiO2) convertible to a gel of density at least 40% of the theoretical density of the refractory material, and converting the sol to the gel. Optionally, the gel may be converted to a ceramic coating by firing.
Patent GB-2027687-A (GB)
Title: Low Density Cement Slurry and its Use
IPC: C04B14/24
Filed: 1979-07-05
Abstract: A 9 to 12 ppg (1.08 to 1.4 kg/litre) cement slurry for use in oil well type completions which comprises hydraulic cement about 8 to about 50 weight percent hollow glass microspheres based on the weight of the cement and sufficient water to form a pumpable slurry with an API free water content of no more than about 2 volume percent. The microspheres have ANSI/ASTM D2840-69 true particle densities of about 0.2 to about 0.5 gm/cm<3>, ANSI/ASTM D3102-73 hydrostatic collapse strengths of at least 500 psi (3447 kPa) and average particle diameters of less than about 500 microns.
Patent GB-2059905-A (GB)
Title: Packing tubular members
IPC: B65D85/20
Filed: 1979-09-24
Abstract: In a pack, tubular and/or rod- like members are mutually separated and held together at each of at least three longitudinally spaced locations by separating means or dunnage comprising a lower beam (11), an upper beam (12) and preferably at least one intermediate beam (13), each beam comprising a body (15, 25) of resilient material mold formed to provide alternating planar surfaces (18) and concave surfaces (19) of not more than 180 DEG arcuate extent. Shallow channels (20, 28) are provided to receive a pack-tightening encompassing band of webbing or strapping. The beams are provided with cooperating alignment bores (20, 26) and integral dowel pins (22, 27) to assist in vertical alignment of the beams at each said longitudinal location. The beams are of an elastomeric material reinforced by a sand cement filled tube 14. <IMAGE>
Patent GB-2063181-A (GB)
Title: Air power boat
IPC: B63B1/38
Filed: 1979-11-09
Abstract: This invention relates to a boat that has no propeller or sails, the bottom of the boat is divided into panels to which are fixed various air pipes, which in turn are fed from an air pump stationed at the front of the boat at deck level, the pipes provide a cushion of air on which the boat glides along, thus eliminating most of the friction, and allowing the boat to move faster than an ordinary boat, using the same amount of power. <IMAGE>
Patent GB-2037027-A (GB)
Title: Device for manually producing digital pulses
IPC: G04G5/00
Filed: 1979-11-21
Abstract: A device for the manual production of digital pulses in a forward-backward counter comprises pulse-producing elements arranged helically on a rotating axle. The pulse-receiving elements are arranged linearly along the rotating axle in one or several rows. The distance between the pulse absorbing elements is unequal to the pitch of the helical line, whereby the pulse-receiving elements are acted upon individually in succession or in several groups in succession. The interaction between pulse-producing and pulse-receiving elements can be based on electronic, electromechanical or electromagnetic phenomena. The dimensions of the device are miniaturizable to the extent that the entire device can be housed together with the storage or microprocessor subordinate to it in an integrated electronic module of practicable size.
Patent GB-2038038-A (GB)
Title: Control apparatus for maintaining a desired circumference of a longitudinally extending thin-walled expanded plastics tube extruded from an annular die
IPC: B29C48/90
Filed: 1979-11-28
Abstract: An internally-cooled blown-film system, for producing plastics tubing 14', in which the flow rate of the continuous flow of internal cooling air, through optical means, is made directly dependent upon the deviation in position of the tube wall. The optical means comprise a pair of light sources 44 which produce beams which taper down to photo-electric detectors 46 (having infrared and polarising filters) arranged so that the beams are progressively obscured by the tube. The sum of their outputs corresponds to the diameter of the tube and is not affected by sway, which has a differential effect. It is compared with a reference and any error causes adjustment of the air supply valves. The optical apparatus is mounted on pivotal arms 30. <IMAGE>
Patent GB-2043006-A (GB)
Title: Spray-inhibiting means for use on a road vehicle
IPC: B62D25/16
Filed: 1979-12-13
Abstract: Spray-inhibiting means for a road vehicle comprises a screen (15, 16) which is adapted in use to intercept water thrown rearwardly from a vehicle tyre, the screen being mounted in use in an operative position in which its lower edge lies closely adjacent to the road surface behind the associated vehicle tyre by means (such as means 27, 28, 29, 19, 20, 21, 22) which will maintain the screen in its operative position in normal operating conditions irrespective of variations in the vertical position of the load carrying part of the vehicle relative to the road surface. <IMAGE>
Patent GB-2055413-A (GB)
Title: Tunnel segments
IPC: E21D11/08
Filed: 1980-05-30
Abstract: An annulus for a tunnel lining is formed of concrete segments connected and urged together by mechanical members in recesses accessible from inside the annulus. The mechanical members may comprise bolts, flexible couplers or the recesses may contain upstanding stem members entering a recess of an adjacent segment and engaging a slotted plate urging the segments together.
Patent GB-2054452-A (GB)
Title: Bale accumulators
IPC: A01D85/00
Filed: 1980-07-17
Abstract: A bale collator for towing behind a baling machine to collate an array of eight bales, comprising a frame having two side channels (12, 13) each accommodating two bales end to end, a central channel (14) accommodating four bales side by side, a first diverter gate (16) to divert bales coming from the baling machine successively to one side and the other, a pair of secondary diverter gates (18, 19) to divert bales into the side channels (12, 13), a pair of turning gates (22, 23) with associated abutments (24, 25) to turn each bale entering the central compartment (14) through 90 DEG  and a tail gate (26) with automatic release means (29, 30, 27, 28). <IMAGE>
Patent GB-2065169-A (GB)
Title: Electrocoagulation method and apparatus for dewatering of aqueous sludges
IPC: C02F11/122
Filed: 1980-09-18
Abstract: An initial sludge from a waste water treatment system is treated to render the sludge more readily dewatered by a mechanical dewatering system, using an apparatus having spaced vertical parallel plates and by passing a current between the plates and through the initial sludge at a value of 10-80 ampere minutes per gallon, with a retention time of 0.5-5 minutes for the initial sludge to produce a readily dewatered electrocoagulated sludge material. The preferred apparatus for effecting the treatment has spaced plates (115) superimposed over a movable belt (105) of a mechanical dewatering system such as a filter press, with a reservoir (121) provided on the housing (113) for the plates to control flow of initial sludge through the spaced plates and along a belt (105) of the filter press.   <IMAGE>
Patent GB-2059071-A (GB)
Title: Capacitive pressure transducer
IPC: G01L9/12
Filed: 1980-09-19
Abstract: The transducer comprises a profile- etched metallic diaphragm (7) the peripheral zone (6) of which is left unetched for mounting the diaphragm on an Al2O3 base plate (1) in an air-tight and pressure-tight manner; and a thin metallic film (2) applied to the adjacent surface of the base plate, the diaphragm (7) and the metallic film (2) constituting a capacitor which varies with the separation between the diaphragm and the metallic film and hence with ambient pressure. The capacitor determines the frequency of an oscillator 13. <IMAGE>
Patent GB-2086631-A (GB)
Title: Coin operated gaming or amusement machines
IPC: G07F17/34
Filed: 1980-10-31
Abstract: A fruit machine provides a random feature additional to the usual reel spin. This feature offers the choice of holding, indexing and spinning the reels, in any order, with the reel movement being in either direction. The holding and indexing can also be randomly available as two separate features, but a single control button (7, 8, 9) for each reel is operable to index or hold according to the feature available. <IMAGE>
Patent GB-2078352-A (GB)
Title: Method of manufacturing firecrackers or similar products
IPC: F42B4/30
Filed: 1980-10-31
Abstract: In making firecrackers, a first sheet, (formed for example, by vacuum forming or moulding) has a plurality of depressions which are filled with a paste comprising pyrotechnic substance, a suitable solvent (e.g. water), and a filler, a second sheet is then secured to the first (e.g. by an adhesive) so as to seal the depressions, and the resultant product is cut up to separate the individual depressions. The preferred pyrotechnic substance is silver fulminate. The first sheet may be made of any suitable material (for example a weak plastics material) and the second sheet is desirably such as will permit the passage therethrough of evaporated solvent. Drying steps may be carried out before and/or after the second sheet is secured to the first sheet. <IMAGE>
Patent GB-2057401-A (GB)
Title: Module built shock absorbing system
IPC: B65D81/05
Filed: 1979-10-31
Abstract: Shock absorbing system comprising a number of modules of three different kinds, which is to be placed in the empty space (S) being formed when an inner box-shaped package (L1) is placed inside an outer box-shaped package (L2). The modules consist of corner pieces (A), absorbers (B) and extensions (C). When packing a product the modules are mounted together to a suitable number and size and are placed on chosen places in the space (S) between the two packages (L1, L2).
Patent GB-2066064-A (GB)
Title: A domestic dishwashing machine with adjustable plinth
IPC: A47B95/00
Filed: 1980-11-13
Abstract: A domestic dishwashing machine has a casing 1 provided on the bottom with rear support feet 3 and at least one front support foot 12, and a base plinth for mounting a front panel 11 which is adjustable in respect of depth, the front support foot 12 being fixed with respect to a bracket 4 which is fixed to the casing 1 so as to be movable in the direction of the depth of the machine and which is capable of being selectively locked by per se known means in a position in which the front foot 12 is within the length of the adjustment travel of said panel 11. The bracket 4 comprises a front vertical portion 5 having at opposite ends two legs 6, 7 which are substantially horizontal and which are fixed to said casing by a connecting means of pin-and-slot type. The front panel 11 is fixed to said bracket 4 in per se known manner. <IMAGE>
Patent GB-2065479-A (GB)
Title: Devices for introducing a catheter or a probe into a blood vessel
IPC: A61M39/06
Filed: 1980-12-12
Abstract: A device for introducing a catheter or a probe into a blood vessel, comprises a hollow needle capable of being pierced into the vessel, a flexible guide capable of being introduced into the vessel through the needle, a dilator capable of being introduced into the vessel and around the guide after withdrawal of the needle, and a flexible cannula capable of being introduced into the vessel and around the dilator to permit, after withdrawal of the dilator, the introduction of the catheter or probe into the vessel, and is characterised by the provision of a non-return valve (30) which is capable of being fitted on the proximal end (28) of the cannula (24) and which is designed to prevent all outward flow of blood during the withdrawal of the dilator, of the catheter or of the probe or during the insertion of a catheter or probe of external diameter less than the internal diameter of the cannula. <IMAGE>
Patent GB-2065668-A (GB)
Title: Compounding rubber manufacture of elastomeric material articles
IPC: C08J3/00
Filed: 1980-12-18
Abstract: Method of manufacturing unvulcanised elastomeric components including a filler material which mitigates the problem of porosity in a finished article consisting of or incorporating the component by substantially reducing gas adsorption into the filler material before and/or after forming the component. Methods of reducing gas adsorption include maintaining the mixed compound from which the component is formed and/or the formed component in an atmosphere of reduced pressure and/or an atmosphere of a gas having a low adsorption rate. Alternatively the mixed compound and/or formed component may be covered by an air impermeable membrane such as plastic film material or by a material having a low gas adsorption rate compatible with the elastomeric compound.