baber/WOPTO huggingface dataset:
Patent GB-2090786-A (GB)
Title: Method for making a plastic container
IPC: B29C51/08
Filed: 1981-01-10
Abstract: A blank (3) made of molecularly orientable plastic resin, which is to be formed into a cup-shaped container, is introduced into a die (1) (Figure 1) comprising upper and lower plungers (5, 6) and a hollow compression member (4) surrounding plunger (5). The blank (3) is heated to a temperature at which molecular orientation can be effected and the plungers (5, 6) are then moved downwardly through the die cavity, thereby shaping the blank (3) into a plastic container (2). The member (4) cooperates with a shoulder (1c) on the die to form the outer peripheral region of the blank (3) into a flange portion (2a) having a skirt (2b). The blank (3) may initially be in powder form or a laminate. <IMAGE>
Patent GB-2069836-A (GB)
Title: Fire extinguishing apparatus for ducting systems
IPC: A62C3/04
Filed: 1981-01-27
Abstract: Fire extinguishing apparatus for ducting incorporating an extractor fan, comprising a fire extinguisher arranged to discharge extinguishing medium into the duct upstream of the extractor fan at a predetermined temperature and a temperature sensing unit operatively connected to a circuit selector control for cutting-out the fan when the unit detects a preset temperature less than the operating temperature of the extinguisher and including a by-pass circuit whereby the fan can be restarted following discharge of the extinguisher. A visual and/or audible indication of the state of the selector control circuit is provided to assist manual setting of the by-pass circuit when required.
Patent GB-2073941-A (GB)
Title: Improvements in or relating to gas transport lasers
IPC: H01S3/0979
Filed: 1981-03-30
Abstract: A transverse flow gas discharge gas laser having a cathode electrode 7 and an anode electrode 6 includes a baffle 21 upstream of the cathode such that the cathode operates in a stagnant region of the wake of the baffle. The baffle may be formed integrally with the cathode. The arrangement reduces the incidence of sputtered deposits and arcing. <IMAGE>
Patent GB-2076353-A (GB)
Title: Scraper blade
IPC: B65G45/12
Filed: 1981-05-14
Abstract: The invention relates to a scraper blade for a conveyor belt. Conventionally conveyor blade scrapers are mounted in the vicinity of the discharge end and it is usual to resiliently mount such scrapers to maintain contact between the scraper blade and the belt to accommodate wear on the blade, and to allow the passage of a joint in the belt past the scraper blade. This however does not avoid damage to the joint or to the blade or even to the belt surface when the blade is forcibly displaced from the surface of the belt or returns to the belt surface after passage of a joint. Not only is there possible premature failure of either the belt, joint or scraper, there is also a noise problem resulting from the blade repeatedly striking the belt surface. The object of the invention is to avoid such problems, which objective is met by a scraper blade having a body portion (1) with a scraper edge (2, 3) at at least one side and at least one projecting lifting finger (5, 6) extending beyond the scraper edge to contact the belt surface in advance of the edge of the scraper. <IMAGE>
Patent GB-2080914-A (GB)
Title: Sewer pipe stopper
IPC: E03F7/02
Filed: 1981-05-20
Abstract: The device provides a means for connecting a temporary by-pass pipe to a sewage pipe to enable the normal gravity flow of sewage to be maintained whilst work is being performed on the sewage pipe-line. The use of pumps is thereby avoided. The device consists of a large diameter drainage tube (1) and an encircling inflatable tube (13) for sealing the drainage tube to a sewage pipe (2). A by-pass pipe is connected in use to the free end (1') of the drainage tube. Sewage flow is controlled by a gate valve (16) which in the open position leaves the bore of drainage tube (1) unobstructed. The by-pass pipe is conveniently led through a section of pipeline on which work, such as relaying of the pipeline, is being performed. <IMAGE>
Patent GB-2078230-A (GB)
Title: Thiomolybdenum derivatives of dispersant alkenylsuccinimides and lubricants containing same
IPC: C10M159/18
Filed: 1981-05-22
Abstract: Thiomolybdenum dispersants can be formed by reacting an alkenylsuccinimide (A) of the formula:   <IMAGE> wherein R is an alkenyl radical having from 50 to 200 carbon atoms in the chain and x is 0 to 10, with (B) an ammonium salt of a molybdenum thioacid e.g. ammonium tetrathiomolybdate or (C) a molybdenum oxyacid and hydrogen sulfide and removing any volatile by-products. The thiomolybdenum dispersants can be incorporated in lubricating oils to improve anti-wear properties and provide friction reduction and oxidation stability.
Patent GB-2099616-A (GB)
Title: Improvements relating to microprocessor units
IPC: G06F12/121
Filed: 1981-06-03
Abstract: A microprocessor (1) is encapsulated with a security device. Two field programmable logic arrays (3, 4) are programmed in inversely matching manner an arrange respectively in input and output buses (2, 5) to the microprocessor. These may be for data and/or for addresses. When programming a system memory, data is written in via one of the FPLAs. This effectively scrambles the data into apparently meaningless form in the memory. However, when read out again, it is passed via the other FPLA, which unscrambles it, to the microprocessor. Similarly, data can be placed in 'wrong' addresses in the memory, but when re-addressed via this unit the correct data is extracted. <IMAGE>
Patent GB-2101285-A (GB)
Title: Mortuary cold store
Inventor: SCOTT GEORGE
IPC: A47B88/14
Filed: 1981-06-11
Abstract: The invention relates to means for slidingly supporting body racks 5 in a mortuary cold store without hindrance to access to the store for cleaning, and provides a plurality of rollers 19 at each side of the store for engagement with respective lateral edges of the racks. <IMAGE>
Patent GB-2085208-A (GB)
Title: Measuring mis-match between signals
IPC: G10L15/00
Filed: 1981-09-16
Abstract: The degree of mis-match which would be obtained between a test and a reference signal, for example speech signals, should their time-axes be subjected to that relative shift and/or distortion which is required to minimize the degree of mismatch is carried out by sampling the two signals at regular intervals and storing these samples in memories. All the samples of one signal are then read out in succession from one memory; each successive sample of the other signal is read out from the other memory, and the difference between each pair of samples is formed in a subtractor. Each difference value from the subtractor is added to the smallest of three quantities, X, Y and Z and the result stored in a register to form the new quantity X. This new quantity X is also stored in a further memory cyclically addressed in tandem with the memory 12. The quantity Z is the previous content of the location of memory into which the new quantity X is written, and the quantity Y is the previous value of the quantity Z, obtained by shifting the previous value of the quantity Z in a two-stage shift register. Thus the quantities X, Y and Z correspond to the present sample of the other signal and the immediately preceding sample of the one signal, the immediately preceding sample of both signals, and the present sample of the one signal and the immediately preceding sample of the other signal respectively. The result is that each successive value of the quantity X is the optimum cumulative distance value between the two signals for the corresponding pair of samples should these be assigned to each other when matching the two signals to each other. The process is continued until all the sampled value have been read and paired, at which point the value of the quantity X is a measure of the above-defined degree of mis-match.
Patent GB-2098112-A (GB)
Title: Casting incorporating hard, e.g. wear-resistant, insert
IPC: B22D19/06
Filed: 1982-03-24
Abstract: A double composite structure comprising cemented carbides embedded in a first metal matrix, e.g. of an austenitic stainless steel, forming a wear, impact, drill and corrosion resistant body made by powder metallurgy techniques and having molten metal cast around the body; to form parts which are particularly useful for earth- moving and security applications.
Patent GB-2117410-A (GB)
Title: Process for the continuous production of blister copper
Inventor: VICTOROVICH GRIGORI SEMION
IPC: C22B15/00
Filed: 1982-03-26
Abstract: Copper matte containing iron is smelted, preferably autogenously, with oxygen and reacted with a molten lime-ferrite slag to take up iron oxide formed. The slag is slowly cooled, ground and magnetically separated, and the non-magnetic fraction, rich in lime, is reverted to the smelter to form flux. The smelting may be performed in an oxygen flash smelter or a converter. The process is advantageously used to treat matte made by autogenously smelting copper concentrate, preferably by oxygen flash smelting, and part of the non-magnetic portion of the slag may be reverted to the concentrate smelting step.
Patent GB-2117545-A (GB)
Title: Gaming apparatus
Inventor: LUDLOW ROY ALBERT GEORGE
IPC: G07F17/34
Filed: 1982-03-30
Abstract: A fruit machine is provided with a randomly available facility whereby one or more of the reels can be moved at the end of a play to recall the symbol which was presented by the respective reel at the end of the immediately previous play or a play prior to the latter. The availability of the recall facility is visible at the front of the machine and the facility can be operated by a button or the like.
Patent GB-2119990-A (GB)
Title: Coin-freed amusement-with- prizes machines
Inventor: ARNOLD WILLIAM KEITH
IPC: G07F17/32
Filed: 1982-05-10
Abstract: A fruit machine comprises an up and down counter (12) arranged to be incremented by a selected amount for each credit unit when a coin is inserted into a coin mechanism (7) of the machine and to be decremented by a predetermined amount for each credit unit when the machine pays out a prize as a result of actuation of collect button (10). The setting of a control device (18) is continuously adjusted in dependence upon the difference between the accumulated count and an initial value to which the counter (12) is set, so as to vary the probability of a winning game and stabilize the payout ratio. A second counter (19) is incremented by a selected amount for each credit unit when a coin is inserted into the coin mechanism (7) and to be decremented by a predetermined amount each time start button (9) is pressed to play a game. The control device (18) is further adjusted in dependence upon the difference between the prevailing count and an initial value set in the counter (19) so as to tend to maintain a desired ratio of the number of total plays to the number of credit units inserted in the machine. <IMAGE>
Patent GB-2114395-A (GB)
Title: Stereoscopic television system
Inventor: BUTTERFIELD JAMES FRANK
IPC: H04N13/221
Filed: 1982-07-22
Abstract: Stereoscopic pictorial system in which one image in a stereo image pair is coloured in a first colour, e.g. red, and the other image is coloured in two different colours, e.g. green and blue, and in which the viewer looks at the stereo image pair through anaglyph filter spectacles, one filter passing the first colour and the other passing the other two colours. If the two images are produced by two spaced colour TV cameras 11L, 11R with the colours of the images being colour components, the resultant, images superimposed, colour C.R.T. image will show objects in true full colour with coloured lateral edges and will also show stereoscopic relief when viewed through the anaglyph spectacles. Spaced black and white cameras having their outputs 'labelled' as the 'one colour' and the 'other two colours' will produce an approximately black and white stereoscopic display. The principle is also stated to be applicable to photographic cameras and film. The video signals may be recorded for later display. <IMAGE>
Patent GB-2125253-A (GB)
Title: Data communications system
Inventor: LATIN ROBERT VINCENT
IPC: H04J13/00
Filed: 1982-07-27
Abstract: In a digital communication system for use in a local area network, messages are conveyed over a cable, which may be an electrical cable or an optical fibre cable, using code division multiple access spread spectrum techniques. In such a system the message is modulated on to a quasi- random bit stream whose characteristics form an address for the terminal to which the message is directed. Such a system is known in specialised radio systems, but is not normally considered suitable for line communication because of inefficient use of the bandwidth. However, in a short-range local area network this disadvantage largely disappears.
Patent GB-2104217-A (GB)
Title: Method and device for gyroscopic seeking of north
Inventor: VAUCHY JEAN-MARIE
IPC: G01C19/38
Filed: 1982-08-17
Abstract: The invention relates to a method and a device for seeking the North by gyroscope means. A frame (210) of a gyroscope (200) has, by means of a synchronous electric motor (300), a continuous rotary movement of its angular momentum (@) imposed on it in a horizontal plane (OXY); measurement is carried out of the turning moment applied to or received by said frame using the instantaneous electrical supply parameters to the motor, notably the voltage-current phase displacements; determination of the instants when the frame passes through the local cardinal points is obtained using these measurements. Determination is also carried out of the instantaneous orientation of the frame with respect to the instrument using measurement of phase. As the rotation is continuous, the measurements can be repeated at each revolution and analysed using statistical methods. <IMAGE>
Patent GB-2109764-A (GB)
Title: Improvements relating to pneumatic transporters
Inventor: KRYWICZANIN WLADYSLAW HUBERT
IPC: B65H23/24
Filed: 1982-11-01
Abstract: A simple form of pneumatic transporter is provided by making two pairs of lines of cut in the wall of a length of ducting 16 and bending outwardly the portions 23 of the wall between each pair of lines of cut. An air nozzle means 6, 7 is mounted at the outer end of each of the bent-out portions to direct air into the ducting. <IMAGE>
Patent GB-2119018-A (GB)
Title: Compressor housing for a turbo-compressor
Inventor: OSBORN NORBERT LEWIS
IPC: F04D29/42
Filed: 1983-03-01
Abstract: The compressor housing if formed by die casting using an inner mould 292 and an outer mould 290 to produce the housing 24. Moulds 294 and 296 are used to form the compressor outlet. A wall insert 126 of the housing is also formed by die casting using moulds 320, 322 and is provided with protrusions 140 which engage apertures in the housing 24 to secure the insert in the housing. A throat portion 128 of the insert is provided with notches 326 which receive vanes for mounting a bearing support cylinder. <IMAGE>
Patent GB-2124662-A (GB)
Title: Controlling spin-dry drum speed according to drum imbalance
Inventor: DOW ALEXANDER BRIAN RODERICK
IPC: D06F34/08
Filed: 1983-05-20
Abstract: A washing machine or spin dryer has a spin-dry drum (I, Figure 1), a motor (5) for rotating the drum, a control system for controlling the speed of rotation of the motor, and sensing means (15, 16, Figure 2) responsive to the degree of imbalance of the drum during rotation thereof and operable to cause the control system to select a motor speed for rotating the drum (1) that is determined by the degree of imbalance. The sensing means may sense stress imposed on a component by imbalance, or sense changes in motor speed. <IMAGE>
Patent GB-2122009-A (GB)
Title: Automatic depositing/ dispensing apparatus
Inventor: WATANABE YOSHIHIRO
IPC: G07D9/00
Filed: 1983-06-09
Abstract: In an automatic depositing/dispensing apparatus, a plurality of note storage sections (14, 15, 16) is provided in a housing (6). Each of the note storage sections (14, 15 or 16) stores deposited notes (P) of a denomination and includes a cash box (17, 18 or 19) into which notes (P) are collected in one direction, collection/takeout device (21, 22 or 23) disposed at one end portion of the cash box (17, 18 or 19), whereby the deposited notes (P) from a note inlet (7) are led and collected into the cash box (17, 18 or 19), and the notes (P) collected in the cash box (17, 18 or 19) are taken out and delivered to a note outlet (8), and a partitioning mechanism (24, 25 or 26) capable of selectively assuming a first posture to engage both side edges of the notes (P) stored in the cash box (17, 18 or 19), or a second posture removed from the side edges, and movable between a first position inside the cash box (17, 18 or 19) and a second position adjacent to collection/takeout device (21, 22 or 23), so that a temporary storage space (27, 28 or 29) is defined between the collection/takeout device (21, 22 or 23) and the partitioning mechanism (24, 25 or 26) in the first posture and in the first position. <IMAGE>
Patent GB-2128318-A (GB)
Title: Cooling of internal combustion engines
Inventor: MANSFIELD WILFRED PERCIVAL
IPC: F01P7/16
Filed: 1983-08-05
Abstract: This invention provides means to improve control of the temperature of the internal cylinder surfaces of an IC engine so that those temperatures are maintained closer to their optimum values at each combination of engine load and speed, and particularly to enhance engine cooling whenever the co-ordinates of the engine load and engine speed approach a value at which detonation would tend to occur in the absence of such enhancement. The setting of a valve controlling the rate of flow of coolant through ducts formed in the engine structure is determined by the output of a control device having two inputs (10, 13), related to engine load and speed respectively. The control device may be a movable plate (35) connected to the control valve and presenting two shaped surfaces which maintain contact with followers (29, 32) carried by levers (27, 31) movable in response to engine load and engine speed respectively. Means to vary ignition timing in response to particularly rapid changes in engine demand are also described. <IMAGE>
Patent GB-2126124-A (GB)
Title: A drying device for air dryers
Inventor: SCHOLZ HELMUT
IPC: B60T17/00
Filed: 1983-09-02
Abstract: A drying device for air dryers of compressed-air brake systems for commercial vehicles comprises a complete, canister-like component and disposable part which may be replaced in its entirety as a structural unit. It has a pot (13) into which the drying agent (14) is directly introduced and which is closed at the mounting end by means of an end cover (15). The end cover incorporates a central outlet opening (18) having an internal screw-thread (19) by means of which the complete pot is screwable onto a screw-threaded connection of the air drier housing. The air enters through inlet openings (24) in the end cover (15), passes through a prefilter (37), the drying agent (14), an after-filter (33) and then flows through a central tube (27) from one end of the pot to the other and to the outlet opening (18). In a preferred embodiment a safety screw (42) having a pressure relief passage (51, 52) secures a safety tab (43) which prevents the drying device from being unscrewed before the safety screw is released. <IMAGE>
Patent GB-2259226-A (GB)
Title: Communications systems
Inventor: PEILE ROBERT EDWARD
IPC: H04B1/713
Filed: 1983-10-05
Abstract: A communications system of high resistance to interference and jamming is of a frequency hopping type. In each hop period portions of data are simultaneously transmitted on 16 respective pseudo-randomly selected frequency channels. Preferably the data is first encoded using concatenated Reed-Solomon and Reed-Muller encoders (42, 46) the data to be transmitted is also symbol interleaved and then expanded by Direct Sequence Spread Spectrum. Resulting subsets of data from the said portions are thus encoded in both time and frequency domains. <IMAGE>
Patent GB-2130730-A (GB)
Title: Movement sensing apparatus
Inventor: SCHALLER RONALD W
IPC: G01V3/08
Filed: 1983-10-21
Abstract: A linear Hall effect chip 6, that is, a chip giving an output voltage which varies in direct relation to the magnetic field, is located between a magnet 10 and a detection region. A current is passed through the chip and a Hall voltage arises, perpendicular to the magnetic field and the current. When a magnetic or paramagnetic material such as a truck wheel 20 on rail 4 passes through the detecting region the magnetic flux distribution through the element changes and the Hall voltage is increased. The Hall voltage is fed into suitable control circuitry, which includes a DC amplifier, and comparison means which compares the Hall voltage with a reference voltage and provides an output signal only when the Hall voltage deviates from the reference voltage by a predetermined value. Thus signals from small objects may be rejected. <IMAGE>
Patent GB-2151347-A (GB)
Title: Plate heat exchangers
Inventor: BARKER AUBREY DEREK
IPC: F28D9/00
Filed: 1983-12-09
Abstract: A pack of plates 3 of the plate heat exchanger is enclosed between a base 4 and a closure member 6 separated by side walls integral with the base 4. The deflections due to internal pressure of a box section are less than those with the conventional slab section head and follower and the provision of two side walls also restrains the plates against lateral movement and partially encloses the heat exchanger. As illustrated in Fig. 4, the pack of plates 3 may be compressed by means of a moveable follower 11 using tightening screws reacting against the enclosure 6. Other embodiments are illustrated. <IMAGE>
Patent GB-2136738-A (GB)
Title: Cable trap mechanism for supply cables of a torpedo
Inventor: WOIDICH RICHARD
IPC: F41F3/055
Filed: 1983-12-30
Abstract: A cable trap mechanism for the cable ends in the launch tube of a torpedo for cut supply cables, in order to prevent damage to the blades of the drive propeller. A carriage is disposed in stationary rails (8) of a launch tube (2) and the free end of a supply cable is gripped either by a spring-loaded carriage (not shown) or by a torsion spring (23) and may be pressed into an area of the launch tube wall, away from the propeller, after the cable has been cut by the initial movement of the torpedo. <IMAGE>
Patent GB-2250878-A (GB)
Title: Phase detectors
Inventor: OETZMANN EMERSON HARDY
IPC: H03L7/107
Filed: 1984-01-04
Abstract: A phase detector comparing the phase of periodic transitions in a first signal (INPUT) with a further periodic signal comprises: a smoothing circuit 33; a variable gain amplifier means 31 via which the first signal is applied to the smoothing circuit; and control means 35 for varying the gain of the amplifier means cyclically between positive and negative values at the frequency of the further signal. The detector finds particular application in a phase locked loop arrangement (not shown) whereby a periodic signal generator is phase locked to periodic transitions occurring between an adjacent pair of channels in each frame of a multiplex time division signal, the other frames of which contain analogue data. The gain of the amplifier means is then suitably varied in stops of equal magnitude between positive and negative values of equal magnitude, the time between adjacent steps being equal and the number of steps being equal to the number of channels in a frame. <IMAGE>
Patent GB-2153841-A (GB)
Title: Reduction of heat exchanger fouling
Inventor: FERM RICHARD L
IPC: C10G9/16
Filed: 1984-02-09
Abstract: The fouling produced in a heat exchanger when a hydrocarbon stream, which is to be heated or cooled therein, is passed through the heat exchanger is reduced by incorporating in the hydrocarbon a small amount of the order of from 1 to 500 parts per million of an antifouling additive which is an alkylamino alkylphenol of the general formula:   <IMAGE> or a mixture of such additives, wherein R and R1 are independently alkyl groups of 1 to 20 carbon atoms; R2 is hydrogen, or an alkyl group of 1 to 20 carbon atoms or an alkylphenolic methyl group; R3 is hydrogen, or an alkyl group of 1 to 6 carbon atoms; and n is 1 to 10.