baber/WOPTO huggingface dataset:
Patent GB-1276720-A (GB)
Title: Drives to adjustable stator blades for turbomachinery
Inventor: LEE ALAN STUART
IPC: F01D17/16
Filed: 1969-12-19
Abstract: 1276720 Turbomachines; axial-flow blowers ENGLISH ELECTRIC CO Ltd 18 Dec 1970 [19 Dec 1969] 61935/69 Headings F1C and F1T] A turbomachine, such as an axial-flow helium blower, has angularly adjustable stator blades 29 connected by arms 36 to a common actuating ring 42 concentric with the machine axis 21A, the axes 30A of blades 29 lying on a cone whose vertex is at a point 39 on axis 21A. To reduce friction, the vertex angle is so related to the lengths of arms 36 that the outer ends of the latter during blade adjustment follow paths which when projected on to a plane normal to axis 21A approximate to circular arcs of radius equal to that of actuating ring 42. Each blade 29 has a shaft 30 rotatably supported by a cylindrical bearing surface 31 in a housing 32 bolted to the intake casing 25 of the machine. A plate 34 is splined to the end of shaft 30 and is bolted to a boss 35 integral with arm 36 and mounted by cylindrical bearings 37, 38 upon the outside of housing 32. The ends of arms 36 are connected to ring 42 by spherical bearings 40 and pins 41. Axial and circumferential movement of ring 42, and thus adjustment of blades 29, may be effected by an axially movable rod 47 pivotally connected to an additional arm (46), Fig. 5 (not shown) on one of the bosses 35. In an extreme position adjacent blades 29 abut to shut off the flow of gas to rotor blades 23. The inner surface of outer casing 25 and the outer surface of wall 26 are spherical adjacent blades 29 so that clearances 44, 45 do not vary as the blades are adjusted.
Patent GB-1288140-A (GB)
IPC: H05K5/04
Filed: 1970-12-31
Abstract: 1288140 Filter assemblies SOC ANON DE TELECOMMUNICATIONS 31 Dec 1970 [4 Aug 1970] 62029/70 Heading H1R In a three -terminal filter assembly comprising a variable inductance and one or more capacitances, the components are electrically connected through a printed circuit board. In the embodiment shown in Fig. 1, the inductance coil 9 is formed on a ferrite core 8 clamped with a spring 7 to the base 1 of the casing 6. The capacitors 29 comprise conducting and mica sheets alternatively stacked on both sides of the mica or ceramics plate 13, which comprises the printed circuit, and welded thereto. Output pins 2 and inductance pins 14 fit into holes in the plate 13 and are welded to the printed circuit. The inductance can be adjusted through an aperture 4 provided with a sealing disc 5. The aperture can also be used for gas filling.
Patent GB-2001814-A (GB)
Title: Frequency discriminating switch ing circuit
IPC: G01R23/15
Filed: 1978-06-14
Abstract: An electronic frequency discriminating circuit switches between two stable states depending on whether the input signal frequency is above or below a threshold and enables an improved response time to be obtained, which is equal to the period of the input signal, by employing a period comparison circuit including a programmable unijunction transistor 8 in oscillator mode the period of which is compared with that of the input signal by means of an exploitation circuit comprising a monostable circuit consisting of NOT- AND gates 3 and 4 and a capacitor 6 as well as an inverter 5. These elements are connected to two type JK flip-flops 11 and 12 connected to the output of the period comparison circuit. <IMAGE>
Patent GB-2014300-A (GB)
Title: Opacity measurement apparatus and method
IPC: G01N21/25
Filed: 1978-09-19
Abstract: Apparatus and method for automatically detecting the increase in opacity of a liquid in a container 3a by shining a light 1 through the liquid onto a photo-electric cell 4, the cell output being automatically monitored. Useful for detecting the growth of micro-organisms in a well in a transparent multi-well plate, 3. Light may be distributed from a common source 1 by light guides 2 to respective wells 3a, the optical transmission being measured by respective photo-electric cells 4. The optical transmission of a well containing a test material may be compared with that of a well containing a control material by arranging relative motion between the wells and a combination of a common source and photocell, so as to provide sequential measurements. <IMAGE>
Patent GB-2005350-A (GB)
Title: Improvements in and relating to ventilating fan arrangements
IPC: F04D29/64
Filed: 1978-09-22
Abstract: An axial flow fan mounted on a vertical axis above an underground passage through which air is to be circulated, comprises a first stationary wall 6 extending upwardly of the fan impeller 1 and of increasing circular boundary dimensions in the vertically upward direction whilst being symmetrical about the fan axis to form an inner wall of a diffusion chamber 10 for air being extracted by the fan, a second stationary wall 8 comprising a lower conical portion 8b disposed below the impeller and co-axially therewith whereby air being extracted converges towards the fan blades 3 and a further upper portion 8a extending above the impeller and of increasing circular boundary dimension in vertically upward direction, the minimum circumference of the wall 8 being located in the same horizontal region as the impeller and dimensioned to clear the tips of the fan blades, the upper portion 8a forming the outer wall of the diffusion chamber 10 which chamber is of annular hydraucone form and in vertical section is curved outwardly from the fan axis. The fan is surrounded by a sound-damping wall 22. <IMAGE>
Patent GB-2008413-A (GB)
Title: Ground forces' respirator
IPC: A62B18/04
Filed: 1978-10-16
Abstract: A close fitting head enveloping respirator for use by ground forces personnel comprises a hood 10 and visor 11 combination, the visor carrying an oro-nasal mask 14. By means of a ducting arrangement in the mask wall breathing air, e.g. entering the respirator via a filter 15, is forced through openings 16 and across the visor ahead of the eyes before entering the user's respiratory system via opening 17. Exhalent is exhausted from the respirator by non- return valve assembly 18. <IMAGE>
Patent GB-2012860-A (GB)
Title: Element Fixing Device
IPC: F16B5/12
Filed: 1979-01-04
Abstract: A device for use in replaceably fixing, for example, a moulded trim (M) to a sheet metal car body wall (L), of the type comprises a plate (10) with oppositely arranged wings (12) on which the trim (M) can be hooked. The plate (10) is securable to the wall (L) by means of double sided adhesive tape (20) adhered to the rear face of the plate, thereby obviating the need to provide holes in the wall (L). <IMAGE>
Patent GB-2012685-A (GB)
Title: Tractor/implement combinations
IPC: B62D49/06
Filed: 1979-01-17
Abstract: A tractor 1 has a cab 2 and coupling means 3 for connection to an implement 4. The implement 4 is a distributor and has an adjustable member in the form of a dosing mechanism 8. The adjustable member is operable by a rope 14 which passes through an opening in the wall of the cab 2 for actuation from within the cab. Alternatively, the rope may be connected to an actuating element which itself passes through an opening in the cab wall. <IMAGE>
Patent GB-2016924-A (GB)
Title: Mixtures against rusts
IPC: A01N59/20
Filed: 1979-03-02
Abstract: Fungicidal mixtures possessing notable activity against rusts, especially rust infections in coffee or cereals, comprising a fungicidally effective amount of   a) 2-cyano-N-[(ethylamino)carbonyl]-2- (methoxyimino)-acetamide and   b) at least one copper compound e.g. one or more fixed copper fungicide as well as a method of combating or preventing rust infection in plants. Fixed copper fungicides specified include copper (II) carbonate, copper (II) calcium sulfate, copper (II) calcium oxychloride, tetracupric oxychloride, Bordeaux and Burgundy mixtures, cuprous oxide, cupric hydroxide, copper (II) oxychloride or mixtures thereof; copper triethanolamine hydroxide and bis (ethylenediamine)-copper (II) sulfate. The compositions may be formulated as wettable powders or water dispersible concentrates.
Patent GB-2024568-A (GB)
Title: Responder detection systems
IPC: F16P3/14
Filed: 1979-05-04
Abstract: An interrogator-responder system for detecting the entry of personnel into a danger zone, has a transmitting arm including a microwave oscillator 1, a first directional coupler 4, a modulator 6, and a second directional coupler 8, feeding a transmitting antenna 9, and a receiving arm including a push-pull mixer 16 fed by a receiving antenna 12 which receives a response signal of doubled frequency produced by a responder R, the push-pull mixer being also supplied with a frequency doubled component extracted from the transmitting arm via 4. A test arm is provided to extract energy from the transmitting arm at 8, double its frequency at 23, and supply it to the receiving arm, by-passing the responder. <IMAGE>
Patent GB-2022425-A (GB)
Title: Chess game
IPC: A63F3/02
Filed: 1979-06-07
Abstract: A game board has a playing field built up of three territories, each having 32 fields, grouped in 4 rows of 8 columns, and arranged around a central area as shown. <IMAGE>
Patent GB-2053357-A (GB)
Title: Rotary positive-displacement fluid-pressure machines
IPC: F04C15/00
Filed: 1979-06-30
Abstract: This invention relates to a machine 1 including a casing, having low and high pressure ports 3, 4, intermeshing rotors 5, 6 of toothed form and end plate means 7 having a pressure-balancing arrangement which comprises sealing means separating, one from another, two areas on that face of means 7 remote from the rotors. One of those areas is subjectable to high pressure and the other to low pressure. Flow-restrictive passages 14, 14' are provided in the means 7 which connect with said one area and open onto face 15 at positions 16, 16' closer to port 3 than to port 4 so that pressure fluid fed from said one area through passages 14, 14' is distributed on face 15 in such manner as to cause the positions of the centres of pressure of high and low fluid pressures applied to face 15 to be substantially non-varying during operation of the machine. <IMAGE>
Patent GB-2027386-A (GB)
Title: Adjustable Mould for Moulding Ophthalmic Lenses
IPC: B29K69/00
Filed: 1979-07-26
Abstract: A method of and apparatus for molding precisely shaped articles and particularly high minus precision lenses in which a charge of synthetic resin e.g. polycarbonate approximating the mass of the finished article is injected under relatively low pressure into a space 60 having a volume greater than that of the finished article, between optically finished, heated, relatively movable mold inserts 63, 65. After injection the inserts are moved toward each other under pressure and the cooling of the mass controlled while under pressure to provide uniformly timed solidification of all parts of the mass. The article is thus formed without the necessity of either high injection pressure or overflow from the mold cavity. <IMAGE>
Patent GB-2057911-A (GB)
Title: Dust filter apparatus
IPC: B01D50/00
Filed: 1979-08-24
Abstract: Dust filter apparatus comprises a chamber (2) defining a gaseous flow duct across which is arranged a dust filter panel (18), gaseous flow inducing means (8), e.g. a fan (9), are located on the downstream side of the filter panel and nozzle means (20) spray liquid into the gaseous flow on the upstream side of the filter panel. Liquid drains from the filter panel into liquid collection means (28) which suitably is substantially sealed from atmosphere and which is maintained at a balanced gaseous pressure with a portion of the gaseous flow duct downstream of the filter panel and upstream of the flow inducing means, e.g. by external gas conduits (35) and/or internal gas conduits (36). A droplet eliminator (29) may be positioned between the filter panel (18) and the flow inducing means (8). A silencer (7) may follow the flow inducing means (8). <IMAGE>
Patent GB-2036091-A (GB)
Title: Transfer Printing
IPC: B41M5/035
Filed: 1979-10-03
Abstract: In an improved method of transfer printing by the dry-film method, a temporary support is used in which a substrate coated with a release layer carries a removable layer comprising a dyestuff and a binder. The binder is based on a film forming polymer and is soluble in organic solvent to facilitate printing onto the temporary support as an ink containing a dyestuff and the polymer, but is also soluble in water to facilitate its being washed out of a fabric to which it has been transferred. The substrate of the temporary support can be paper, and transfer of the removable layer to a fabric is achieved by application of heat and pressure. The release layer is a continuous coating whilst the removable layer will generally be a printed design which need not be continuous.
Patent GB-2036083-A (GB)
Title: Recovering Metal from Metal Complex Containing Liquors
IPC: C25C1/20
Filed: 1979-10-23
Abstract: The process comprises the steps of:-   (a) adjusting the pH of the liquor e.g. metal refinery effluent as necessary to a pH of 6.0+/-0.5; (b) removing by filtration any precipitate or other solid matter from the so-treated liquor of step (a); (c) heating the filtrate from step (b), or, in the absence of step (b), the treated liquor of step (a) to not less than 70 DEG C; (d) electrolysing the heated filtrate or liquor of step (c) at a substantially constant temperature of at least 70 DEG C so as to destroy the stable complexes and thereby to precipitate at least a proportion of the said metal in the form of hydrated oxides or hydroxides, and (e) filtering-off the precipitate from step (d). Complexes present in effluents which,are otherwise difficult to break down and cause problems in purification and control are said to be successfully destroyed by this method. e
Patent GB-2042202-A (GB)
Title: Operating a liquid crystal cell
IPC: G02F1/1335
Filed: 1980-01-21
Abstract: A liquid crystal twist cell 6 is respectively switched ON + OFF by application of signals at a low frequency fl (at which the liquid crystal has positive dielectric anisotropy) and a high frequency fh (negative dielectric anistropy). To avoid a patchy appearance in the OFF state, due to different parts of the liquid crystal having different twists brought about by shear phenomena, a finite period falling in either of two separate ranges is allowed to elapse between the cessation of fl and the commencement of fh. The finite period may be reduced by reducing the thickness of the liquid crystal or by increasing the temperature. To avoid reverse tilt, fh should cease before the molecules at the centre of the liquid crystal layer lie parallel to the plane of the layer. For colour switching of an image on CRT 1, cell 6 is between neutral polariser 7 and two coloured polarisers 4,5. <IMAGE>
Patent GB-2043003-A (GB)
Title: Track laying vehicle
IPC: H01L21/268
Filed: 1980-02-06
Abstract: A track laying vehicle has an endless track entrained around a driving sprocket (14) and an idler wheel. The track comprises a plurality of articulated elements each having a pair of laterally spaced links (2) connected by a track shoe (6) and pivotally coupled to the links of adjacent elements in the track by pins having bushings thereon. Each element also has a noise-suppressing assembly comprising a hardened wear-resistant outer tubular portion (3), and an inner resilient portion (4) secured thereto, and means (5) for rotatably mounting the noise- suppressing assembly between the pair of links (2) at a position to contact the sprocket (14) between adjacent teeth of the sprocket prior to contact of the sprocket by the trailing bushing, and to contact the circumference of the idler wheel prior to contact by an idler-engaging surface of the element. <IMAGE>
Patent GB-2070456-A (GB)
Title: Water treatment apparatus
IPC: C02F1/48
Filed: 1980-02-26
Abstract: A water treatment apparatus comprises a source 4 of monochromatic light, e.g. a laser, the axis whereof is aligned with a geometric center of an inlet port 3 of a section A in a water line 1. The section A is made of transparent material and a coil 2 connected to an electric power source surrounds the section A. Suitably, a beam of light emitted by the source 4 is periodically interrupted by a screen 5 attached to a core 6 of an electromagnet 7 connected in series through a timer 8 to a circuit comprising the coil 2 and the electric power source. This apparatus can be used in various fields of agriculture and industry wherein water with stimulating properties is required as a solvent, e.g. grain germination. <IMAGE>
Patent GB-2071133-A (GB)
Title: Cracking process
IPC: C10G1/00
Filed: 1980-03-04
Abstract: Single ring aromatics and ethylene can be produced by passing a partially-hydrogenated coal-derived oil into a space reactor in the presence of free hydrogen at approximately atmospheric pressure and thermally cracking the fluid. Yields of total BTX are about 10%.
Patent GB-2047431-A (GB)
Title: Temperature control means in a humidity pick-up
IPC: G01N27/22
Filed: 1980-03-28
Abstract: A capacitive humidity pick-up (10), Fig. 4 the dielectric constant of which varies as a function of humidity, has a temperature control arrangement whereby it is heated electrically to a temperature (Ts) which is a function of and is higher than the ambient temperature (Ta), such that (Ts) = f(Ta). The control arrangement comprises a bridge circuit Fig. 3 including an NTC thermistor RAT responsive to ambient temperature and a PTC resistor RST which is responsive to the pick-up temperature and also serves as the heating element for the pick-up. <IMAGE>
Patent GB-2053116-A (GB)
Title: Shunting locomotive
IPC: B61C17/04
Filed: 1980-06-05
Abstract: A shunting locomotive has a cab 13 which is located substantially in the middle of the chassis and is adapted for both directions of travel. To provide an improved view (including a view of the buffers 5) for the driver, the driver's cab extends above structures, for example the driving gear super-structure 12, 15 on either side of the cab and the extended cab portion is widened to take up the entire width of the chassis. To improve access between the cab and other parts of the locomotive, a cross walkway 18 extends transversely of the locomotive to provide access to the cab and joins two longitudinal walkways 17 which extend one along each side of the chassis: the widened cab portion is situated at such a level that these longitudinal walkways can be negotiated without hindrance. <IMAGE>
Patent GB-2054447-A (GB)
Title: Encapsulating semiconductor devices by injection moulding
IPC: H01L23/31
Filed: 1980-06-19
Abstract: Electrical components, e.g. semiconductor devices, are encapsulated by an injection moulding process. The devices (5), each provided with a cover (4) and mounted on a bandolier (3) are fed into a mould (2). Plastics material is injected from one or two injection points and at a specified angle in relation to the bandolier such that the pressures acting on the device (5) are substantially uniform in all directions. <IMAGE>
Patent GB-2059099-A (GB)
Title: Low ambient light level indicators
IPC: G02B23/12
Filed: 1980-08-11
Abstract: Binoculars (3) incorporating an image intensifier are used by, for instance, a pilot to view a scene; a light emitting device (1) being mounted in the field of view of the binoculars to emit light of a predetermined, constant intensity which becomes visible when the ambient light level is sufficiently low. The invention is particularly, though not exclusively, for use by aircraft pilots as a safety aid when flying in conditions of poor or deteriorating visibility. <IMAGE>
Patent GB-2060650-A (GB)
Title: Bonding Rubber to Metal
IPC: C08K5/098
Filed: 1980-09-22
Abstract: An elastomer is bonded to a ferrous metal by the inclusion therein of nickel abietate. Subsequent exposure of the elastomer/ferrous metal assembly to vulcanising conditions serves both to vulcanise the elastomer and to bond the two materials together. The resulting bond has been found to be more resistant to deterioration under hot and humid conditions than one achieved by means of other metal salts. A convenient form of nickel abietate is as the salt of nickel and colophony. The invention has application in the production of tyres.
Patent GB-2085211-A (GB)
Title: Reflecting trimming
IPC: A41D27/00
Filed: 1980-10-08
Abstract: A reflecting trimming for outdoor garments, rucksacks or cycling equipment, comprises a narrow tape of synthetic fibres of other weatherproof material, and a plurality of light- reflective elements secured to one face of the band or tape at spaced intervals. <IMAGE>
Patent GB-2060972-A (GB)
Title: Sound producing instrument
IPC: G10K1/07
Filed: 1980-10-14
Abstract: A sound producing instrument comprises an elongate frame, support means on the frame, and a plurality of sound producing elements on the support means, so that when the frame is shaken, struck or caused to vibrate, the instrument produces sound. Advantageously, the frame is a staff (20); the support means includes groups of pins (24) extending from the staff (20) adjacent each end thereof thereby defining a central portion (27) of staff (20); pins (24) extend at an angle of 90 DEG  to the axis of staff (20); the sound producing elements are cupped discs (29), each having an aperture in the centre thereof through which passes the disc- supporting pin (24), each of the discs (29) being freely moveable along the supporting pin (24); and the cupped discs (29) are unidirectionally aligned on pins (24). The invention also provides a rod for use with the sound producing instrument. <IMAGE>
Patent GB-2064485-A (GB)
Title: Material for the construction of caskets and coffins
IPC: A61G17/00
Filed: 1980-10-21
Abstract: A casket or coffin for the burial or cremation of human remains, comprises a container and a lid made of a cellular thermosetting polyurethane resin having at least one filler so as to produce a degradable rigid or semi-rigid material and/or a rigid or semi-rigid material having controlled combustibility and thus controlled smoke emission. The filler is suitably starch.
Patent GB-2063373-A (GB)
Title: Improvements in or relating to devices for extracting energy from waves
IPC: F03B13/20
Filed: 1980-10-30
Abstract: The device comprises at least two pontoons hingedly connected together so as to perform useful work from the relative motion of the pontoons in response to waves. The hinge 20 is provided by laminated metal reinforced elastomeric elements 22, 23, 24 which reduce in cross- section with radial displacement from the centre of the hinge, and which constitute pump chambers, above and below sealing strip 37, discharging to a turbine (88, Fig. 1a not shown). <IMAGE>
Patent GB-2073061-A (GB)
Title: Journal cross for a Cardan cross coupling
IPC: F16D3/40
Filed: 1981-03-26
Abstract: The invention relates to a journal cross for a Cardan cross coupling of the kind produced by forging, and which consists of a centre part and four journals with their axes lying substantially in one plane. The invention is characterised in that on the centre part of the journal, viewed in the direction of the axis of rotation, the external contour (10) at the transition between two adjacent journals is rounded out by material- removing machining to form a type of concave chamfer (8). Preferably, the concave chamfer surface is a cylindrical surface. <IMAGE>