baber/WOPTO huggingface dataset:
Patent GB-2055491-A (GB)
Title: Automatic regulation of arc welding
IPC: B23K9/00
Filed: 1979-08-06
Abstract: With underwater arc welding, long leads separating the arc from the welding plant produce a voltage drop, which on a constant voltage supply interferes with the arc voltage regulation. This regulation is restored by keeping the output voltage of the plant equal to the sum of a preset voltage and another voltage, proportional to the short circuit current. Upon starting (contactor 6 closed), circuit 9 memorises the short- circuit current as measured by saturable reactor 8 and adds this to the preset value. The welding plant is then supplied via contactor 5, rather than 6 and choke 7, and the regulation begins. <IMAGE>
Patent GB-2028920-A (GB)
Title: Rotary engine valve
IPC: F01L7/16
Filed: 1979-08-21
Abstract: A shaft-type valve means for an internal combustion engine (12) of the type having a block (14) in which there is a cylinder (20) and a piston (22) reciprocal in the cylinder (20) wherein the chamber (103) is covered by a head (41) and an improved valve is in the form of a shaft (36) journaled in the head (41) with a portion of the shaft (36) spanning a portion of the cylinder (20) above the piston (22) and the shaft (36) has a diametrical (90, 92) passageway of a cross sectional area which, in the direction of the centerline of the shaft (36), is at least as great as the radius of the cylinder (20) and circumferentially is a distance substantially equal to one-sixteenth of the circumference of the shaft (36) and wherein seal means (501, 601) are provided between the shaft (36) and the engine and a crank shaft (28) connected to the piston (22) is connected to the shaft (36) to rotate it simultaneously with the crank shaft (28) by a force transmission means such as a belt or the like.
Patent GB-2041526-A (GB)
Title: Measuring fuel consumption
IPC: G01F9/00
Filed: 1979-09-20
Abstract: A device for measuring the fuel consumption of internal combustion engines, particularly diesel engines, having a fuel injection system, comprises an auxiliary fuel tank 1 from which fuel feed and return lines 2, 3 lead to the engine (not shown), and which is connected to the main fuel tank 12 by a fuel line 7 incorporating a volume meter 8, there being a filter device 9 in this line, and the filter device 9 is connected at its top by inlet and return lines 13, 11 to the fuel tank 12, there being a pump 14 which is of the continuously operating type in the inlet line 13 and there being a non-return valve 10 in the return line 11 and a level control device 5 on the top of the auxiliary fuel tank 1. Air is vented by a vent 6. <IMAGE>
Patent GB-2032354-A (GB)
Title: Panel
IPC: B62D33/04
Filed: 1979-10-01
Abstract: A thin panel or partition, e.g. for bodywork for vans, comprises plates (1) of sheet metal or some other thin material, the plates being placed in edge-to-edge relationship for assembly, wherein the assembly edges are bent to form slideways (at 1a) and correspondingly shaped stiffening and assembly elements (5) are engaged on the bent adjacent edges (1a) of the plates to give the partition or panel considerable rigidity in its plane. Similar elements may engage folds in the central parts of the plates in order to give further rigidity.   <IMAGE>
Patent GB-2060998-A (GB)
Title: Semiconductor annealing
IPC: H01L21/265
Filed: 1979-10-17
Abstract: A process for annealing crystal damage in ion implanted semiconductor devices in which the device is rapidly heated to a temperature between 450 and 600 DEG C and allowed to cool. It has been found that such heating of the device to these relatively low temperatures results in rapid annealing. In one application the device (17) may be heated on a graphite element (14) mounted between electrodes (15) in an inert atmosphere in a chamber (11). The process may be enhanced by the application of optical radiation from a Xenon lamp (19). <IMAGE>
Patent GB-2042418-A (GB)
Title: Bonding metal sheets
IPC: B32B15/08
Filed: 1980-02-14
Abstract: A method for producing a laminate having at least two sheet of metal e.g. steel the method comprising interposing between adjacent sheets, a plastics material embodying a filler and applying pressure and heat to produce adhesion between the metal and the material. Alternatively a plastics material optionally containing a filler and in the form of an open matrix 4 of filaments may be interposed between the sheets 2, 6. The plastics material may be an ionomer of ethylene and the filler barium sulphate, titanium dioxide, calcium carbonate or carbon black.   <IMAGE>
Patent GB-2047883-A (GB)
Title: Smoke Detector
IPC: G08B17/103
Filed: 1980-02-27
Abstract: A smoke detector for detecting a product of combustion, comprises a detection chamber for receiving said product of combustion along with air from outside the detector, a radiant energy source, a radiant energy transducer for receiving energy from such source in dependence on the presence of said product of combustion, and detection circuitry 8 coupled with the radiant energy transducer. A delay monitoring circuit (36) is associated with the detection circuitry 8 for sensing relatively slow changes in the signal level in the detection circuitry to compensate bidirectionally for variations from a quiescent signal level to prevent spurious triggering 34 of the detection circuitry 8, said monitoring circuit 36 including output control means e.g. for controlling the gain of amplifier 26 and memory storage means for maintaining a previous signal level. The detector may work on a stroking principle and the radiant energy source output modulated. <IMAGE>
Patent GB-2045065-A (GB)
Title: Crockery rinsing apparatus
IPC: A47L15/42
Filed: 1980-03-13
Abstract: Contamination of the mains water supply by backflow of dirty water from the rinsing container of crockery rinsing apparatus in the event of suction in the mains is prevented by a device comprising chamber 2 having fresh water inlet 1 and outlet 9, openings 6, 12, and abutment 8, and a valve member 4 operable in said chamber, the latter being arranged in a vessel 3 in communication with the rinsing container via opening 10 and air vent 11. Normally, when water is supplied to the rinsing container, the valve member is raised and leakage occurs through opening 12. If suction occurs via inlet 1, the valve member drops onto abutment 8, its lowering being assisted by pressure equalisation via opening 12. Outlet 9 is blocked and venting via vent 11 and openings 6, 12 can occur, thereby preventing backflow. <IMAGE>
Patent GB-2050520-A (GB)
Title: Hydraulic Conveying Means
IPC: B65G53/30
Filed: 1980-04-03
Abstract: An emptying device for vertically installed conveying ducts or duct sections of a hydraulic conveyor system or part system is disclosed, such a system comprising a multichamber pipe charger (6) which is filled by a slurry pump (7) with a mixture of solid substances and water and which is emptied by a clean water high pressure pump into the conveying duct (4). The emptying device comprises a drainage duct (15), which includes slides (18, 19) arranged at its entry (16) and exit (17) and which is connected to the end of the conveying duct (4) at the pipe chamber charger exit (12). <IMAGE>
Patent GB-2047980-A (GB)
Title: Submerged fuel pumps
IPC: H02K3/44
Filed: 1980-04-25
Abstract: A fuel pump is provided in a fuel supplying system of a vehicle such as an automobile. The electric motor for driving the pump is completely immersed in the flow of fuel for cooling, thereby attaining an extended service life. The brush lead (8) of such a motor-immersed fuel pump is coated with or composed of a material which is non-reactive with the fuel, e.g. the lead may be copper coated with nickel, tin, silver, silver alloy or aluminium. <IMAGE>
Patent GB-2077526-A (GB)
Title: Supply circuits for discharge lamps
IPC: H05B41/46
Filed: 1980-06-06
Abstract: The inductive ballast for an inductively operated discharge lamp in a switch start circuit on a.c. supplies is provided with a compensating winding wound on the same magnetic core as the main winding and arranged to give a short-circuit current when the starter is closed substantially the same as the normal operating lamp current. This prevents a high ballast temperature rise when the starter flashes in the condition when the lamp fails to start. The ballast is of particular use with a starter which is designed to remain in a non-flashing closed condition when the lamp fails to start. A circuit using this ballast can be paired with a capacitively ballasted circuit in which no compensating winding is provided on the series inductance and in which the short-circuit current is consequently also practically equal to the normal operating current of the lamp. The size of the compensated inductive ballast can be substantially the same as the ordinary uncompensated inductive ballast. <IMAGE>
Patent GB-2078367-A (GB)
Title: Control device
IPC: H02P7/29
Filed: 1980-06-20
Abstract: A control device for a motor 24 has a pulse width modulation control circuit 22. In place of the usual potentiometer, this is controlled by a device comprising a light dependent resistor 18, two polarising filters 14, 16, and a light emitting diode 12. On rotation of a shaft 26, the relative planes of polarisation of the filters are changed, varying the transmission of light from the LED 12 to the LDR 18, and changing the latter's resistance to alter the motor speed. The invention is not limited to the control of motor speeds. <IMAGE>
Patent GB-2081053-A (GB)
Title: Exchange Synchronisation System
IPC: H04Q11/04
Filed: 1980-07-17
Abstract: In a digital telecommunication system a terminal involved in a call is synchronised to the exchange, by a sequential process, as follows:-   (a) when a subscriber initiates a call a wake-up signal is sent to the exchange, e.g. a string of 0 bits. (b) when the exchange receives the wake-up signal it sends to the calling terminal a synchronisation check code signal, or flag, e.g. 01111110. (c) when the terminal detects the flag signal it replaces the wake-up signal with the flag signal which "tells" the exchange that the terminal is in synchronism. (d) when the exchange receives the flag signal it sends back a proceed to send signal (equivalent to dial tone), whereafter the caller can dial.   If a batch of terminals are coupled to the exchange via a multiplex system an initial synchronisation sequence for that system is interposed, using as its check signal the inverse of the flag, i.e. 10000001.
Patent GB-2055643-A (GB)
Title: A method of and apparatus for manufacturing a saw blade of a band saw
IPC: B24D18/00
Filed: 1980-08-08
Abstract: A saw blade for a band saw for cutting gem stones is manufactured by deforming a flat annulus of blade material until both edges (17, 17') of the annulus are of equal or substantially equal length. Apparatus for carrying out the method comprises first and second spaced rollers (10, 11) relatively movable towards and away from each other, a position sensing device (18, 18') for sensing the position of an annulus disposed over the rollers, and means (20, 13) responsive to the position sensing device for preventing the annulus from moving axially along the circumference of at least one of the rollers. <IMAGE>
Patent GB-2061190-A (GB)
Title: Propelling pencil
IPC: B43K21/22
Filed: 1980-10-09
Abstract: A longitudinally movable two-part gripper 129 has a rib 132 projecting from each part through a surrounding sleeve 117. When the sleeve is displaced by button 128, the gripper 129 opens, and when the sleeve is returned by spring 127 the gripper closes, as it is engaged and distorted by the sleeve interior. Separation of the gripper from the sleeve allows the gripper to open resiliently. <IMAGE>
Patent GB-2087544-A (GB)
Title: Coating detector
IPC: G01N21/88
Filed: 1980-10-16
Abstract: Apparatus for detecting uncoated sections of a continuously moving web of coated sheet material, such as coated paper, comprises means, such as an infrared LED 1, for directing onto the web 6, a beam of radiation 3 modulated at a predetermined frequency, detector means such as phototransistor 2, for generating an electrical signal dependent on the intensity of radiation 4 reflected from the web, and detection circuitry receiving the electrical signal through filter means and operable to provide an output signal when the magnitude of the filtered signal exceeds a preset value. The filter means is arranged so that the detection circuitry does not respond to short-term variations in the intensity of the reflected beam due to non-uniformity of finish of the coating on the web. Preferably the modulation frequency of the incident radiation is at least an order of magnitude greater than that of any transient changes of intensity in the region of the detector means. <IMAGE>
Patent GB-2063529-A (GB)
Title: Control of stepping motor in battery powered apparatus
IPC: G04C3/14
Filed: 1980-10-17
Abstract: In a circuit for the actuation of a stepping motor for battery-operated instruments, in particular watches, the length of motor drive pulses is altered for the purpose of saving energy. In the process, different loads on the stepping motor and variable battery voltages are taken into consideration. This feature is accomplished by measuring a signal proportional to the current flowing through the field coil of the stepping motor and interrupting the drive pulse to the motor when a predetermined change occurs in the signal. The drive pulses are further limited as to both minimum and maximum length. Advantageously, the stepping motor is actuated and the signal processed by means of a digital circuit technology, in order to provide for complete integration of the circuit.
Patent GB-2086990-A (GB)
Title: Hydraulic Ram Pumps
IPC: F04F7/02
Filed: 1980-11-07
Abstract: In a hydraulic ram pump having an air chamber 8 in the outlet, the volume of air is controlled by an air outlet valve controlled by a float 9. <IMAGE>
Patent GB-2065022-A (GB)
Title: Apparatus and method for forming and curing
IPC: B29C43/52
Filed: 1980-12-04
Abstract: Apparatus for forming and curing a web 13 of plastics material which may be reinforced against a mould tool 12 comprises a membrane 6 of elastically deformable material which in use holds the web 13 against the mould tool. A liquid medium for urging the membrane 6 against the web 13 and transferring heat to and from the web is introduced into a region 18 above the membrane and flows therethrough. The temperature of the liquid can be varied by heating and cooling means (not shown). When a tubular mould is used, the membrane 6 may be in the form of a sack or bladder. <IMAGE>
Patent GB-2089965-A (GB)
Title: Stoves
IPC: F24C3/12
Filed: 1980-12-23
Abstract: This invention offers a gas stove flame adjuster which is mainly characterized by an L-shaped lifting portion 17 installed in the gas stove to be moved by a screw 22 of the stoveside plate making use of the principle of lever for achieving the purpose of vertically moving the position of the stove nozzle 10 so that the distance between the stove nozzle and a cooker bottom (not shown) can be properly adjusted in line with the height and extent of gas flame in order effectively to fully use the outer flame with maximum temperature and so as not to waste gas and thus to enhance the heat efficiency of the stove. <IMAGE>
Patent GB-2085028-A (GB)
Title: Platinum-based Alloys
IPC: C22C32/00
Filed: 1981-01-08
Abstract: A metallic material suitable for use under rigorous or hostile conditions, such as in the handling of molten glass or the preparation of X- ray fluorescence spectroscopy specimens, comprises a grain- stabilised alloy of gold and platinum containing not greater than 10 wt% gold. The grain-stabilising additive may be an oxide, carbide nitride or silicide of an element more reactive than Au or Pt during its formation. Examples of these reactive elements are Se, Y, Th, Zr, Hf, Ti, Al or a lanthanide, but the preferred stabiliser is ZrO2 or ThO2.
Patent GB-2094142-A (GB)
Title: Injectable solution containing theophylline and a basic amino acid
IPC: C07D473/08
Filed: 1981-03-06
Abstract: An injectable solution comprising a basic amino acid and theophylline, for use in the treatment of cardiac asthma and allergic asthma. The basic amino acid is especially lysine. Also disclosed is a compound formed by reaction of lysine and theophylline.
Patent GB-2073652-A (GB)
Title: Improvements in or relating to apparatus for applying polymeric material to a workpiece
IPC: B29C70/68
Filed: 1981-04-10
Abstract: In order to apply a smooth surfaced polymeric e.g. rubber coating to a workpiece (10) in a single operation the workpiece is rotated in a lathe about an axis (11) and a polymeric applying head is traversed parallel to the axis along the workpiece. The head has a freely rotatable tapered feed roller (19) forming a nip with the workpiece to apply polymeric material to the workpiece, a main roller (23) also forming a nip with the workpiece to pressurise and render plastic the polymeric coating applied by the feed roller, a pressure surface (24) incorporating a retractable plough (25) to dig into the polymeric coating and release any entrapped air and a roller (26) to apply the required surface finish to the coating. All the rollers rotate automatically by engagement with the layer on the workpiece. <IMAGE>
Patent GB-2099129-A (GB)
Title: Gas-fired appliances
IPC: F24C3/08
Filed: 1981-05-21
Abstract: In a gas-fired appliance, a mounting plate 9 for the mixer tubes 17 of gaseous fuel burners is located in position with reference to a gas rail 7 carrying gas valves 10 that control the supply of fuel to injectors by means of surfaces on the plate which abut locating surfaces on brackets 3 and 4 that support the gas rail 1. <IMAGE>
Patent GB-2085571-A (GB)
Title: De-humidifier for Compressed Gas
IPC: F04D29/58
Filed: 1981-08-05
Abstract: Air from a compressor 11 passes into a de-humidifier through an inlet 12 and then flows through a heat- exchange passage 10 defined between inner and outer shells 8 and 9. From the passage 10, the air flows through a cooling passage 7 within the inner shell 8 where it is cooled by an evaporator 3 of a refrigerating system, and the resultant cooled and de-humidified air passes through pipes 15 in the passage 10 where heat-exchange takes place between this air and the compressed air entering through the inlet 12. From the pipes 15, the air flows through a chamber 14 and out through an outlet 16. In order to reduce the temperature difference between inside and outside the outer shell 9, high-pressure side piping 18 between a compressor 1 and a condenser 2 of the refrigerating system passes through the bottom 10a of the heat-exchange passage 10 and the chamber 14, so that the high temperature refrigerant therein heats up the air in these parts of the de- humidifier. Condensate is discharged through ports 17. <IMAGE>
Patent GB-2083725-A (GB)
Title: Radar apparatus
IPC: G01S7/02
Filed: 1981-09-03
Abstract: A radar apparatus is used to measure the backscatter depolarisation of a transmitted linearly (e.g. vertically V) polarised pulse. An elliptically polarised backscatter RF signal is received by an aerial 2, end the two linearly polarised RF components AVV and AVH of it are separated by an orthomode transformer 3. A coupler 4 then forms two different combinations S1 and S2 of the components before they are processed by frequency conversion to IF, amplification and square law detection in detectors 10, 11, to form signals x and y of value S1<2> and S2<2>. A parameter k is then derived using a processing arrangement 14, where k=(x-y)/(x+y) =sin 2 tau  and  tau  is the ellipticity. In a modification of the system, vertically and horizontally polarised signals are sequentially transmitted and ellipticity measurements made on the corresponding returns in the same way. The measurements for vertically polarised signals may then be compared with those for horizontally polarised signals and the relative scattering matrix derived. <IMAGE>
Patent GB-2108418-A (GB)
Title: Device for applying anastomoses onto hollow organs
Inventor: KAPITANOV NIKOLAI NIKOLAEVICH
IPC: A61B17/11
Filed: 1981-10-23
Abstract: A device for applying anastomoses onto hollow organs comprises two substantially similar parts provided with means for their coupling and each one of said parts includes two pivotally connected handles 1, 2. Each handle carries at the free end thereof flat plates 3, 4, 5, 6, the pair of these plates defining a flat clamp when the handles are brought together. The device further incorporates magazines 54 with pushers 45 and dies 24 for bending the staples. The device is provided with means for shifting tissue along the axis thereof as a torus or cushion is formed. This means includes a comb-like plate 19 with sharp points 28 provided on the plate projections, a slot 34 arranged on the inner side of the comb-like portion and engaging each projection and partially the comb proper, an adjustable support 15 carrying the comb-like plate for its travel in the plane parallel to the axis of the flat clamps, as well as retaining members 17 adapted to position adjustable support depending on the position of the comb-like plate. Used as dies 24 are needle-like dies. <IMAGE>
Patent GB-2088829-A (GB)
Title: A Sales Pack for Shaving Equipment
IPC: B65D73/00
Filed: 1981-11-10
Abstract: A sales pack for containing disposable razors, or other shaving equipment, and for suspension from a display rack, is formed from a card blank of generally rectangular shape by folding to a box shape. Crease lines on the blank define the panels of the box-shaped pack. A central panel (P1) contains a slot (11) extending across the width of the blank. The razor heads of a stack of razors rest on this panel after the razor handles have been passed through the slot, and the panels (P2-P6 and P2 min -P6 min ) of the blank are folded to embrace the razor heads and provide upstanding panels which are slotted and form a tongue which will receive the arm of a display rack. <IMAGE>
Patent GB-2110562-A (GB)
Title: Apparatus for treating mixtures of liquid and gas
Inventor: PEK JOHAN JAN BAREND
IPC: B01D45/16
Filed: 1981-12-02
Abstract: Apparatus for treating mixtures of liquid and gas, comprising an open- ended tubular element 2 of which the interior forms a separating space 3, inlet means for supplying a mixture of liquid and gas into the separating space 3, swirl imparting means comprising a plurality of vanes 4 for imparting a rotary movement to the mixture of liquid and gas to separate the liquid and the gas, and outlet means for separately discharging the liquid and the gas from the separating space 3. The apparatus is provided with a deflecting element 6 for directing the mixture of liquid and gas supplied through the inlet means towards the periphery of the swirl imparting means, said deflecting element 6 being located in or near the centre of the swirl imparting means. Liquid exits via 5 and gas via the top of cylinder 2. The device may be fitted in a contactor tray 9. <IMAGE>