baber/WOPTO huggingface dataset:
Patent GB-2078279-A (GB)
Title: A fall-out shelter or basement structure
IPC: E04B1/00
Filed: 1981-06-11
Abstract: A structure such as a tank, basement, blast-proof garage or fall-out shelter has a plurality of, precast concrete end wall elements (1B) of L-shape, with the foot of each L-shaped wall element extending inwardly of the structure, precast concrete side wall elements (not shown), and precast concrete roof elements (2C) supported on the end wall elements (1B) and spanning them. The assembly of elements is enclosed in a concrete shell (10) and has a concrete floor (3), the whole being mounted on a foundation (4). The roof elements are preferably double-Tee sections. <IMAGE>
Patent GB-2110011-A (GB)
Title: DC-DC converter
Inventor: GOODMAN MALCOLM
IPC: H02M3/335
Filed: 1981-11-17
Abstract: In a DC-DC converter a switching transistor (T) is so controlled as to drive current pulses through the primary of power transformer (Tx1), which has a number of secondaries one per DC output required. Each such secondary supplies its output via a rectifier and a smoothing filter. The control and protection circuitry needs an isolated circuit for producing a sense signal. This is effected by a sensing transformer (Tx2) whose primary is in series with the primary of the power transformer (Tx1). The sense signal is derived from the secondary of this transformer (Tx2). To ensure that it is derived only from the main output it is necessary to cancel out components in the primary current due to the other outputs. To do this, further windings of the same transformer (Tx2) are placed in series with the other secondaries of the power transformer (Tx1), they being so poled and so dimensioned that the sense signal is derived only from the main output. <IMAGE>
Patent GB-2089009-A (GB)
Title: Blast Equalizer for a Gun fired Ramjet Projectile
IPC: F42B15/00
Filed: 1981-12-01
Abstract: A blast equalizer for use with a gun-launched ramjet projectile balances the pressure across the outer housing of the ramjet. By properly sizing the openings into the volume surrounding the ramjet casing and the opening into the internal cavity of the ramjet, the pressure increase associated with the explosive gases during firing reaches opposite sides of the ramjet casing at approximately the same instant. The equaliser may act as a bourrelet at the rear of the ramjet casing, and may include a plurality of notches or holes formed in a ring member that have a precisely determined area that opens into the annular volume around the ramjet casing, the ratio of the area of the notches to the area of the throat of the nozzle is matched to the ratio of the annular volume surrounding the ramjet housing to the internal cavity of the ramjet.
Patent GB-2090190-A (GB)
Title: A press
IPC: B30B15/04
Filed: 1981-12-15
Abstract: A crank-driven press for producing can components has a frame 1 in which a ram 4, 10 is guided via rolling elements 14 for reciprocating motion in guides 2 mounted in the frame 1. The ram comprises a rectangular upper portion 4 and a rectangular lower portion 10 which are integrally connected with each other by means of connection elements 6, 18, 19 and 20 arranged at the respective corners of the upper and lower ram portions. The upper ram portion 4 has a tool clamping surface 5 on which an upper tool part 7 is fastened by means of screws 15. The lower ram portion 10 surrounds a support table 11 which has a clamping surface 12 on which a lower tool part 9 is fastened by means of screws 16. A guide element 13 is carried at each corner of the upper ram portion 4, connecting element and each corner of the lower ram portion 10 and cooperates with the rolling elements 14. The plane of contact of the upper tool part with the lower tool part passes through the point of intersection of the diagonals 25, 26 of the ram. <IMAGE>
Patent GB-2092073-A (GB)
Title: Decorative item
IPC: B44C3/02
Filed: 1982-01-22
Abstract: A decorative item reproducing a coin or like object. The item comprises a moulding defining a face 1 and a transverse skirt 2 extending from the periphery thereof, the face and skirt having outer surfaces moulded as an enlarged facsimile of one face and the edge of a coin, the moulding desirably being plated with metal corresponding to the metal of the coin being reproduced. The well formed within the skirt may include weighting material 10 rendering the item suitable for use as a paper weight, or means enabling the item to be wall mounted. The item incorporates safeguards to ensure that any purchaser is quite clear that the object is a facsimile. <IMAGE>
Patent GB-2117394-A (GB)
Title: Decarbonizing and demetallizing petroleum stocks
Inventor: BARTHOLIC DAVID B
IPC: C10G31/06
Filed: 1982-03-22
Abstract: Heavy petroleum is contacted with a rising confined column 1 of hot inert solid (e.g. kaolin microspheres) and inert gas 7 (e.g. steam or methane) at a temperature and for a time such that vaporous products 13 are obtained without substantial cracking. The inert solid 4 is separated from the vaporous product and contacted with an oxidizing gas to burn off combustible deposit and reheat the solid for recycle to the rising column. The petroleum can be injected into the column at one or more points 17, 18 at or downstream of the injection of inert gas. <IMAGE>
Patent GB-2102887-A (GB)
Title: Fluid-pressure actuator operating rotatable shaft
Inventor: STEWART DUNCAN ROSS
IPC: F15B15/08
Filed: 1982-07-28
Abstract: The actuator has pistons 13 reciprocable in housing 10 and having racks 14 engageable with pinion 16 on an output shaft extending externally of the housing for connection for example to a valve. The pistons are moved by fluid pressure at port 17 or 17' to rotate the shaft. Alternatively a spring in cap 12 may move the pistons in one sense. Rotation of the shaft in two opposed senses is limited by stops 21 engageable with sides 23 of a cut-out in the pinion. The stops 21 are threaded bolts close together and extending through the housing so that rotation of the bolts adjusts the limits of shaft movement. The cut-out may be in a separate part of the shaft in the housing or in a plate in the shaft. The stops may act in a cut-out of a yoke arrangement instead of the rack-and- pinion mechanism. <IMAGE>
Patent GB-2106003-A (GB)
Title: Flow powered rotary screen
Inventor: GRIFFIN WILLIAM HENRY TAYLOR
IPC: B01D33/09
Filed: 1982-09-17
Abstract: A perforated cylindrical screen (1) is caused to rotate about a horizontal axis by the flow of sewage or water from (9) to (10) along a flow channel, the liquid entering and leaving internal chambers (2) generally below the horizontal axis. Solids are removed from the screen by doctor blade (6) which is fixed to counterbalance arms (8). Floats (11) relieve the pressure between the doctor blade (6) and the screen if blockages cause abnormally high water levels. <IMAGE>
Patent GB-2125762-A (GB)
Title: Tear-open can lids
Inventor: HOFT PETER
IPC: B65D/
Filed: 1983-06-17
Abstract: A tear-open lid for a beverage can comprises a grooved or scored line 3 partially defining a tear-open portion 4 which is connected by across-piece 5 to the remainder of the lid, the line 3 surrounding a gripping member 7 of a tab 6 with a slight radial clearance 8 therefrom, the tab 6 being rivetted by a lug 9 to the tear-open portion 4. The lid, which may be made from sheet steel, is opened by lifting the gripping member 7 whereby the line 3 is pierced by a projection 11, bending the gripping member 7 back onto the outer surface of the portion 4, and then applying finger pressure directly to the portion 4 within the member 7, so that the gripping member 7 and the tear-open portion 4 are bent downwardly below the lid surface 2. <IMAGE>
Patent GB-2125453-A (GB)
Title: Detergent additive product
Inventor: HARDY FREDERICK EDWARD
IPC: C11D17/04
Filed: 1983-06-27
Abstract: A detergent additive product comprising a C5-C18 aliphatic peroxy carboxylic acid bleach precursor in water releasable combination with a non particulate flexible substrate in a weight ratio of precursor to substrate of 30:1 to 1:10. The aliphatic portion of the precursor incorporates a linear chain including and extending from the carbonyl carbon of from 6 to 10 carbon atoms. The product can also include peracetic acid precursors and other compatible organic and inorganic detergent components.
Patent GB-2149491-A (GB)
Title: Heat storage regenerator for gas turbines etc.
Inventor: HUNTER JOHN
IPC: F02C3/34
Filed: 1983-07-30
Abstract: A rotating (or reciprocating), porous ceramic burner regenerator 3 for aero-engines, gas turbines, furnaces, gasifiers, boilers, etc, consists of a ceramic, porous regenerator drum, with lateral ducts conveying the compressor air through the drum walls to the annular walls of a burner. A proportion of the air is distributed into the combustion chamber by an apertured inner wall. The remainder flows and enters the top of the burner to entrain the fuel into the top of the combustion chamber. The flame jet then flows through an adjacent wall section of the regenerator and stores heat in it. Thus the regenerator wall sections under the burners act as storage heaters while the adjacent sections preheat the burner airflow by flowing counterflow to the flame jet as they both flow through the rotating regenerator. The burner may incorporate automatic back flush rejection of fuel ash and refiring of the unburnt carbon; a bypass system for startup, and multiple regenerators for high capacity systems. The invention can be used with oil, gas or coal or any hot fluid. Several burners may be arranged around an engine casing. <IMAGE>
Patent GB-2127810-A (GB)
Title: Preparation of 2- stilbylnaphthotriazole fluorescent whitening agents
Inventor: LUND RICHARD B
IPC: C07D249/24
Filed: 1983-09-22
Abstract: A process for the preparation of 2-stilbylnaphthotriazole fluorescent whitening agents comprises diazotising a 4-aminostilbene-2- sulfonic acid, coupling the resultant diazonium salt with a naphthylaminesulfonic acid to give a stilbylnaphthylmonoazo salt, oxidising the monoazo salt to a 2- stilbylnaphthotriazole and isolating the 2-stilbylnaphthotriazole compound in the form of its sodium salt, and involves carrying out the oxidation of the monoazo salt with hydrogen peroxide in an aqueous alkaline medium containing 35% 2- butoxyethanol and isolating the 2- stilbylnaphthotriazole fluorescent whitening agent by reducing the concentration of the 2-butoxyethanol to less than 8% by steam distillation.
Patent GB-2127855-A (GB)
Title: Selective plating
Inventor: RICHARDS MICHAEL ARTHUR
IPC: C25D5/02
Filed: 1983-09-30
Abstract: In a method of selectively plating a component, at least part of the component is engaged in a plating aperture of a mask by resilient deformation of the mask so as to expose only the area to be plated. Thus to selectively plate an integrated circuit header (3), the header (3) is mounted in a jig (7), a resilient silicone rubber mask (1) having a stepped plating aperture (2) is press fitted to the cap (4) of the header (3) and a beading (12) of the jig (7) so as to expose only the end face of the cap (4) and the ends of the lead wires (5) of the header (3), the assembly is inverted over a plating tank in a selective plating machine, the end face of the cap (4) and the lead wire ends (5) are selectively plated, for example with gold, and the resilient mask (1) is peeled away from the header (3). In another embodiment the internal surfaces of military-type sockets (16) are selectively plated by inserting the sockets in apertures of mask (14). <IMAGE>
Patent GB-2148758-A (GB)
Title: Bending mandrel
Inventor: GOWING MANSELL THOMAS
IPC: B21D9/01
Filed: 1983-11-02
Abstract: A metal extrusion of generally channel section can be bent to a required profile by the insertion of a plurality of laminae (12) which together correspond to the internal profile of the section to be bent. The laminae are held together at one end by a pin (14) to which is attached an elongate member and after the bend has been formed the laminae are withdrawn by any suitable means. <IMAGE>
Patent GB-2137456-A (GB)
Title: Carrier data transmission system with error correcting data encoding
Inventor: ENTENMAN ALAN W
IPC: H04L27/20
Filed: 1983-12-02
Abstract: A multi-phase communication system for simultaneously transmitting plural binary digits employs one or more error-check bits derived by a convolutional coding procedure over a plurality of digit intervals. The information and error check digits are then communicated by amplitude modulating phase-orthogonal carriers (Fig. 1). Upon reception, the incoming information and error check digits are decoded, and supplied to convolutional error syndrome circuitry (Fig. 5) which corrects errors which may arise from time to time during data transmission. Cascaded syndrome circuitry may be provided. <IMAGE>
Patent GB-2136301-A (GB)
Title: Cricket bat
Inventor: LOVIBOND SYDNEY HAROLD
IPC: A63B59/08
Filed: 1984-02-20
Abstract: A bat for cricket or a like game has a handle and an elongate blade. A front face 13 of the blade has a planar central portion 15 extending the length of the blade in axial alignment with the handle. The front face 13 has a pair of side portions 16, one on each side of the central portion 15, which are each angled towards the rear of the bat relative to the plane of the central portion 15. The central portion 15 constitutes no more than 70% of the width of the bat. <IMAGE>
Patent GB-2143508-A (GB)
Title: Improvements relating to apparatus for positioning laminar components
Inventor: HAWKINS WALLACE GERALD
IPC: B65H3/62
Filed: 1984-06-14
Abstract: A positioning device for a succession of laminar articles of complex but identical shape comprises an inclined platform 10 having a series of parallel slots 13 through each of which projects a post 11 extending normally to the plane of the platform. Each post has connected to it below the platform a pneumatic motor, these motors being actuated to move the posts along the respective slots, under the control of a computer which is fed with a punched card or other information carrying element, into positions designed in relation to the shape of the laminar article to position the article in a preselected and unique position. A vibrator is connected to the platform and operates to shake each article when placed on the platform in approximately the correct position above the posts into contact with the posts. Thus the device can be set up for dealing with any laminar component of complex shape by merely feeding into the computer the information carrying element appropriate to that shape. <IMAGE>
Patent GB-2143022-A (GB)
Title: Method of vaporizing a liquefied gas and vaporizing apparatus for use in the method
Inventor: HOSOI KAZUO
IPC: F17C7/04
Filed: 1984-06-20
Abstract: There are disclosed a method and an apparatus of vaporizing a low temperature liquefied gas and in which an air heating type vaporizing apparatus is used including a plurality of heat exchangers 7A and B operated in a switching manner by placing one heat exchanger in vaporizing mode when the other is placed in defrosting mode wherein at least part of a gas, obtained by vaporizing the liquefied gas, is allowed to flow as a heating gas into the other heat exchanger in defrosting mode when the frost covering the outside faces of the other heat exchanger cannot be melted by the atmosphere, whereby the defrosting of the other heat exchanger is carried out by heating it with the heating gas from the inside. <IMAGE>
Patent GB-2147025-A (GB)
Title: Improvements in structural frames
Inventor: SMITH BRIAN GEORGE
IPC: E04C3/11
Filed: 1984-07-13
Abstract: A steel frame for a building is made up from panels connected together at the corners of the frame by elongate corner connectors 74 Figure 1d having a cross-section comprising a central web 24 and two parallel flanges 26 and 28 extending along opposite edges of the web 24. The flange 28 is formed with an outwardly projecting lip 30, and the flange 26 projects a greater distance from the web 24 than the flange 28. A first frame panel is connected to the web 24 and extends in the opposite direction to that in which the flanges 26, 28 project, and a second frame panel is connected both to the lip 30 and to the flange 26 and extend in the direction in which the lip 30 projects. Furthermore the panels are connected to intermediate portions of other panels by joint connectors 82 Figure 1e having a cross-section comprising a central web 36 and two parallel flanges 38 and 40 formed with outwardly projecting lips 42 and 44. The lips 42 and 44 are connected to the intermediate portion of the panel to which the connection is to be made, and the other panel is connected to the web 24. <IMAGE>
Patent GB-2164604-A (GB)
Title: Saw blade
Inventor: THOMAS JOHN ERNEST
IPC: B27B33/14
Filed: 1984-08-04
Abstract: A saw blade comprising a flexible loop (1) with cutting teeth (2) and depth gauge teeth (3) affixed. <IMAGE>
Patent GB-2173173-A (GB)
Title: Case and pallet systems
Inventor: DELANY PAUL NIGEL
IPC: B65D19/20
Filed: 1985-03-14
Abstract: A combination case and pallet unit comprises a case with recesses and feet (19, 20) at one end of the case to receive pick-up forks or arms. A tray which is a pallet base for the case is removably insertable into this one end of the case to provide support for the case without obstructing the recesses. The case and tray can each be folded flat. The tray can be erected, by folding, from a flat state to an assembly state in which the margins of the tray are upstanding. The tray and the bottom edge of the case at said one end are preferably clipped together so that the bottom edge of the case is clear of the ground in use. <IMAGE>
Patent GB-2163791-A (GB)
Title: Excavator
Inventor: ABDUL-KARIM AL-RABIA A JAWAD S
IPC: E21D9/00
Filed: 1985-04-02
Abstract: An excavator is utilised to excavate or bore into earth and has a body which supports a cutting device in the form of a continuous belt having a plurality of cutting blades of a width in the range 10 to 200 cm for example. The cutting device includes a frame defining a path in which the belt is movable, preferably by electric motors or diesel engines. The movement of the frame is controlled by a governor mechanism, preferably including a worm gear, so that the cutting blades on the continuous belt move step-by-step towards the earth to be excavated. Preferably the cutting device extends in a vertical direction at one or opposite ends of the body. In one form of the excavator the cutting devices are located at opposite ends of the body.
Patent GB-2162771-A (GB)
Title: Doctor blade mounting assembly
Inventor: EKLUND DAN
IPC: B05C11/04
Filed: 1985-06-28
Abstract: Doctor blade mounting assembly includes a pneumatically inflated bag (2) for loading the doctor blade (8). The loading bag (2) extends in the lateral direction of the blade at least over half of the unobstructed blade width, preferably 70 to 80 per cent. By the means of the assembly, the loading force with which the doctor blade is biased against a web can be considerable increased, allowing the use of thinner coatings at high web speeds. <IMAGE>
Patent GB-2162810-A (GB)
Title: Conveying rod-like articles
Inventor: HORSLEY JOHN KENNETH
IPC: A24C5/35
Filed: 1985-08-12
Abstract: Rod-like articles, particularly cigarettes or cigarette filter rods, are conveyed in a stream in a direction transverse to their lengths at a speed which is progressively reduced, so that the height of the conveyed stream is increased. Prior to the reduction in conveyance speed the speed of the individual articles is increased briefly to avoid damage from following articles. The speed reduction takes place in a path (72) having divergent boundary walls. <IMAGE>
Patent GB-2165532-A (GB)
Title: Thermochemical hydrogen generator
Inventor: ENGEL MARVIN JACK
IPC: F17C11/00
Filed: 1985-09-09
Abstract: A lightweight thermochemical hydrogen generator comprises a metallic hydride e.g. magnesium hydride matrix and an ionic hydride e.g. lithium hydride matrix disposed coaxially within a first compartment of a container so as to form a passageway therebetween which communicates with a hydrogen-collecting plenum. Water, pressurized by inert gas, is disposed within another compartment of the container and is supplied to the ionic hydride matrix through a normally closed valve and a water distribution manifold pipe having a plurality of apertures uniformly distributed therein. Upon opening the valve, the resulting ionic hydride/water reaction liberates hydrogen and produces heat which decomposes the metallic hydride. The proportions of the hydrides and the water are selected to control the temperature within the container to ensure decomposition of the metallic hydride, to optimize hydrogen generation and heat dissipation, and to minimize weight and volume. The generator may be employed for the high altitude inflation of a balloon launched from a rocket, as a source of fuel for combustion engines, and as a safe, lightweight hydrogen transportation system. <IMAGE>
Patent GB-2166780-A (GB)
Title: A pile driver, pile drawer and/or drilling machine
Inventor: LAM MING LUEN
IPC: E21B15/04
Filed: 1985-09-25
Abstract: A combined pile driver, pile drawer and drilling machine comprises a carriage (1), a turntable (1A) mounted on the carriage (1), support means (2), lifting means (4) and a mast system comprising two mast units (3). The support means (2) comprises a tubular support bearing (9) which is hinged to the turntable (1A) at (6A) and the lifting means (4) comprises two hydraulic cylinders (6) which are hinged to the turntable (1A) at (6B) and to a bearing sleeve (9A) at (6C). The support means (2) further comprises a mast support (10) which surrounds the bearing (9) and extends through the sleeve (9A) and can be rotated about its own axis by means of an hydraulic cylinders and a bevel gearing. Each mast unit (3) is mounted on the mast support (10) by means of brackets (14) and comprises a guide rail (13), a mast (12) which is slidable on the guide rail (13) by means of an hydraulic cylinder (15) and a cradle (30) which is movable on the mast (12) by means of an hydraulic feed cylinder (28). Each cradle (30) supports a rotary head or percussion head for a drilling tool or the like or a pneumatic hammer for pile driving. One of the masts (12) is also provided with a clamp (16) and a turning unit (17) for pile drawing. The machine can also be used as a crane. A hydraulic jack is provided to support the weight of the mast system when the mast system is in a horizontal position. <IMAGE>
Patent GB-2185663-A (GB)
Title: 3-level line transmission code
Inventor: DYKE PETER JOHN
IPC: H04L25/497
Filed: 1986-01-16
Abstract: A line transmission code, used in a transmission system such as a subscriber loop, uses three levels, +, - and 0, the number of non-zero states being reduced to reduce bandwidth. A data stream is converted to HDB3 code, which is an AMI code, which is converted to the new code using the following rules:     (i) non-adjacent 1 bits becomes +, +, or - -   (ii) a run of an odd number of 1's becomes +0,...0, + or -0,...0- (iii) a run of an even number of 1's becomes +0,... 0, -, or -0, ...0+,   Decoding is very simple, using the following rules:   (a) ++ or -- received: the second pulse is deleted and replaced by 0   (b) if a run of 0's arrive after a + or a - , the + or - and the 0's are converted to 1's.   This decoding brings the stream back to HDB3. Coding and decoding circuits are described. The coding arrangement comprises 4 bistables to the inputs of 2 of which the successive digits of the AMI code are applied from the outputs of the other 2 bistables, these other bistables being controlled by means of gating arrays. The ternary code is subjected to Class I partial response filtering in the transmission path.