baber/WOPTO huggingface dataset:
Patent GB-2155366-A (GB)
Title: Pendular centrifuge for decanting
Inventor: AUCHAPT PIERRE RAYMOND
IPC: B04B1/00
Filed: 1979-11-13
Abstract: The invention relates to a pendular centrifuge for decanting a liquid containing solid particles. The centrifuge has a cylindrical top part 8a and a bottom part 8b having an inclined side internal wall 20. The two parts are connected by a conical surface 22. The inclination of the bottom part of the vessel and the conicity of the connecting surface are such that when the vessel rotates at a certain speed, the liquid and particles initially in the bottom part rise into the annular "clarification" space 28. The invention has particular application in the reprocessing of nuclear fuel. <IMAGE>
Patent GB-2036742-A (GB)
Title: Peroxide complexes of platinum and palladium, their production and their use as selective oxidation and oxidative dehydrogenation reagents
IPC: C07C45/65
Filed: 1979-11-29
Abstract: Peroxide complexes have the general formula:   <IMAGE> in which [A] is an anion of a carboxylic or sulphonic acid containing from 2 to 20 carbon atoms in the molecule, M is palladium or platinum, R is an alkyl, aryl, aralkyl or alkylaryl hydrocarbon radical containing from 3 to 20 carbon atoms and n is 1, 2 or 3. They are prepared by reaction of a salt MA2 with an organic hydroperoxide R-O-OH. They can be used to convert olefins to ketones and for the oxidative dehydrogenation of cyclic ketones.
Patent GB-2037650-A (GB)
Title: Method for moulding sheet material with parallel ribs on one side
IPC: B29C43/20
Filed: 1979-12-06
Abstract: In fabricating sheet material with closely spaced parallel ribs on one side, a mold with ribbed shaped grooves is uniformly filled with a loose, dry molding material using a coater with a plurality of adjacent blades extending therefrom with the blade tips parallel to and preferably in contact with the mold top surface. The coater is swept across the mold top surface and the blades distribute and compress the molding material into the mold grooves. The invention is particularly useful for molding materials with high fiber content which are difficult to pack uniformly and with sufficient density into the mold.
Patent GB-2042115-A (GB)
Title: Universally movable lateral compensator
IPC: F16L27/02
Filed: 1979-12-19
Abstract: A universally movable lateral compensator device for a pipeline comprises two terminal tubular connector pieces (4, 5) interconnected by at least one bellows body (1, 2), a pair of laterally extending members (7, 8) arranged on oppositedly disposed sides of each connecting piece and depending therefrom, said two pairs of members being connected together by a respective pair of tie bars (9, 10) which extend along both sides of the bellows body parallel to the axis thereof by means of universal joints (11-14) pivotally connected to said members, each universal joint comprising a body having a pair of stubs defining one pivotal axis and a centrally disposed opening traversed by a pivot pin defining a second pivotal axis. <IMAGE>
Patent GB-2038129-A (GB)
Title: Power transfer circuit
IPC: H02M7/5383
Filed: 1979-05-31
Abstract: This is a power transfer circuit for transferring power from a d.c. input (11) to a load (12) by way of an air gap (13) in a ferromagnetic core (14), so that there is contactless transfer of energy across the gap. The core includes an input winding (16) whose inductance depends upon the length of the air gap (13), and which inductance determines the resonance frequency of an oscillator including a capacitor (22) connected across the winding (16). The oscillator includes a pair of switching transistors (T1) and (T2) and generator sinusoidal oscillations.
Patent GB-2045362-A (GB)
Title: Wave power energy system
IPC: F03B13/14
Filed: 1980-01-24
Abstract: Leading and trailing plates 10, 12 are suspended in water normal to the direction of wave movement and are connected together at a separation of half a mean wavelength, by rods 14 which permit limited relative movement and adjustment of the separation of the plates. Plate 15 co- operates with plate 10 to form passage 16 in which the water level rises and falls. Air inducted through check valve 19 and exhausted through valve 20 drives turbines 24 and electrical generator 21. A horizontal plate 25 may be attached to plate 10 to inhibit vertical movement. <IMAGE>
Patent GB-2045210-A (GB)
Title: Removable core for reeled web material
IPC: B65H75/22
Filed: 1980-03-05
Abstract: This invention comprises a removable core for a roll of web material which comprises an outer tube 1 which may be expanded and supported to assume the form of a cylinder onto which the web material is wound by axially displacing an insert piece 11 inside the outer tube 1.The outer tube 1 is split lengthways into at least two sections 3, 4 which are biased towards each other by expandable binders 6, 7. The outer tube 1 is supported in its cylindrical form by the insert piece 11 by receiving a stud 12 on the piece 11 in its slot 10. The core can be removed from the web material even in the dark by applying an axial thrust to the displaceable insert piece. <IMAGE>
Patent GB-2058334-A (GB)
Title: Method of extracting heat from the earth and apparatus for performing the method
IPC: F03G4/00
Filed: 1980-03-26
Abstract: Heat is extracted from the earth using a borehole extending typically 1000m to 2000m into the earth. Water is conveyed to the bottom of the borehole and is collected from the bottom in isolation from the downflowing water, so that heat gained by the water as it travels downwardly can be recovered. The borehole may be encased to form an outer pipe down which the water passes, externally of a concentric return flow pipe (18). Alternatively, where no encasing is required, because of the quality of the rock strata, the downward and upward water flow may be in one or more tubes. <IMAGE>
Patent GB-2082752-A (GB)
Title: Burner Igniter/Detector
IPC: F23Q3/00
Filed: 1980-08-21
Abstract: A simple adaptor is disclosed which enables a burner control system employing rectification flame detection to be modified so that a single electrode (5) Fig. 1 (not shown) may be used for both flame ignition and detection. The adaptor comprises an encapsulated assembly 1 of two spark gaps S1, S2 and a resistor A which can readily be connected into the high tension lead 13 from the ignition transformer (T) to the single electrode. <IMAGE>
Patent GB-2062662-A (GB)
Title: Silicon resin coating composition
IPC: C09D183/06
Filed: 1980-10-22
Abstract: An improved silicone resin abrasion resistant coating composition has pH in the range of from 6.8-7.8 and is prepared by hydrolyzing an alkyltrialkoxysilane or aryltrialkoxysilane in an aqueous colloidal silica dispersion and adding a small amount of an ultraviolet light absorbing compound, such as 2,4- dihydroxybenzophenone, to the hydrolysis product.
Patent GB-2069782-A (GB)
Title: Determining speed of an object
IPC: G01P15/00
Filed: 1980-12-30
Abstract: There is provided a device for determining varying rate of motion speed of a moving object, for example acceleration and/or deceleration in rate of a vehicle wheel rotation speed in an auto-motive vehicle, comprising a sensor means sequentially determining current motion speed of the object and producing a pulse signal duration of which is proportional to the determined motion speed, a clock signal generator generating a clock signal having duration representative of unit time for measurement of the motion speed, memory means for storing each data indicative of measured pulse duration of the sensor signals and an arithmetic means for effecting arithmetic operation for determining varying rate of motion speed of the moving object based on the stored data in the memory means. The device has a means for discriminating presence of difference of the sensor signal duration and generating a command for increasing the pulse numbers to be coupled as a group which is measured the duration thereof as a single pulse duration when the difference of the sensor signal duration is not detected or is less than a predetermined value. The device cyclically increment the pulse numbers to be coupled until the difference of the sensor signal duration is detected and is more than the predetermined value or until the coupled numbers of the pulses becomes equal to a given maximum numbers. <IMAGE>
Patent GB-2077865-A (GB)
Title: Pressure modulating valve
IPC: F16K31/122
Filed: 1979-12-14
Abstract: A pressure modulating valve (28) has a principal use for retrofitting into an original hydraulic system (10) to modulate the fluid pressure from a source (11) of hydraulic fluid to hydraulic clutches (50, 52) in a transmission (54). In prior art valves, the routing of hydraulic fluid from the original system to the valve involved the connection of many lines. The present invention is connected to the source (11) at only one location and discharges fluid to the clutches from said location. The valve (28) is operated by the fluid provided at the one location without the need to route fluid around the valve (28) to the various components thereof. The valve (28) also modulates the fluid supplied to the clutches from a low pressure to a high pressure to provide smooth clutch engagement.
Patent GB-2097890-A (GB)
Title: Ultrasonic cleaning
IPC: B08B3/12
Filed: 1981-05-01
Abstract: A method of and apparatus for ultrasonic cleaning comprises introducing into an ultrasonic cleaning vessel at least three ultrasonic power pulses derived from the separate phases of a three phase AC supply.
Patent GB-2100183-A (GB)
Title: Toggle press
IPC: B30B1/10
Filed: 1981-06-17
Abstract: The invention relates to a toggle press. 
<??>A toggle press comprises a main frame (10) and a tool holder (12) mounted for reciprocal movement relative to the frame by power means (27) actuating an intermediate toggle arrangement comprising two toggle mechanisms (17, 22) acting in series. 
<??>The toggle press may be a punch having a main C-frame in which the tool holder is mounted for up and down movement.
Patent GB-2078083-A (GB)
Title: Animal feeds based on spent grains
IPC: A23K10/38
Filed: 1981-06-18
Abstract: The invention provides an animal feed material comprising spent grain having an overall dry-matter content of 23-30% by weight and containing added nutrient materials. The invention also provides a process for the preparation of animal feed material in which spent grains containing less than 25% by weight of dry-matter are subjected to mechanical de-watering e.g. centrifuging to raise the dry-matter content thereof to above 30% by weight, followed by addition of water and at least one nutrient whereby the dry matter content of the grains is reduced to 23-30% by weight. The water and nutrient may be added simultaneously in the form of spoilt beer, acid whey or a suspension of yeast or malt in water. Other specified nutrients are ice cream or coffee residues. <IMAGE>
Patent GB-2111139-A (GB)
Title: Bellows-type mechanical seals
Inventor: HUMPHRIS CYRIL MICHAEL
IPC: F16J15/36
Filed: 1981-12-09
Abstract: A mechanical seal (14) for a shaft (10) rotating in a housing (12) has a seal element (26) connected to seal carrier (18) by a bellows (242). The seal element (26) abuts a second seal element (30) mounted in the housing (12) and forms a running seal between adjacent faces (28,34) of the two seal elements (26,30) respectively. The bellows (242) is constructed from the deformation of a metal tube and is substantially sinusoidal in profile. The tube may be deformed in a metal rolling process and/or in a hydrostatic pressure deformation process. (Fig. 6). <IMAGE>
Patent GB-2117192-A (GB)
Title: Lamp control circuit
Inventor: STRASSHEIM PETER
IPC: H05B41/298
Filed: 1982-02-26
Abstract: A discharge lamp control circuit comprises a switching circuit 12-17 which is controlled by a control circuit (32-70, Fig. 2) to switch an electrical supply to the lamp on and off, the ratio of on-time to off-time being controlled digitally. The control circuit includes manually-operable switches (32-34, Fig. 2) for setting up binary code elements representing a required brightness level, and an overriding circuit (53-59, Fig. 2) which overrides the manual switch setting during pre-heat and soft start phases of a starting sequence. During the pre-heat phase, the switching frequency is higher than the resonance frequency of the lamp drive circuit 19-22 but the ratio of on-time to off-time is at a maximum. During a first part of the soft start phase, the switching occurs at the resonance frequency so that a high voltage is applied to the lamp, but the ratio is kept low, so that the energy is insufficient to cause the lamp to fire. During a second part of that phase, the ratio is increased, so that the high voltage causes the lamp to fire. The control circuit then steps to a running phase, in which the ratio is controlled by the manual switches. The stepping through the preheat, soft start and running phases is controlled by a low- frequency clock (53, Fig. 2) and a register (54, Fig. 2) which is stepped by the clock. Alternatively both transistors 12, 13 may be driven via opto-couplers. Various protection arrangements are used, e.g. overcurrent, lamp failure, supply voltage failure, etc. <IMAGE>
Patent GB-2117862-A (GB)
Title: Method of making pressure hose
Inventor: MCKIERNAN PATRICK NOEL
IPC: B29C48/153
Filed: 1982-03-10
Abstract: A method of manufacture of pressure hose is described. An uncured tubular structure including one or more sub-units 11, 12 or 13, 14 each having a radially inner tubular layer of uncured elastomer 11 or 13 and an outer tubular layer of filamentary reinforcing elements 12 or 14 is subjected to fluid pressure in its bore. The fluid pressure forces uncured elastomer material into the interstices of the filamentary layer of each sub-unit and consolidates the uncured structure. A cover layer 17 of elastomer material is thereafter applied and the covered structure is cured into an integral hose. <IMAGE>
Patent GB-2122249-A (GB)
Title: Tail gate mounting for a load carrying vehicle
Inventor: TANIGUCHI KATSUYUKI
IPC: E05D3/06
Filed: 1982-06-24
Abstract: A mounting arrangement 10 for the tail gate 23 of a load carrying vehicle comprises a linkage 13 pivotably mounted to the rear part of each sidewall 22 of the load carrying portion of the vehicle. Each linkage 13 is pivotably connected at one end to a bracket 12 mounted to the respective side wall 22 while the other end is pivotably secured to a respective arm 17 extending from the tail gate 23. An abutment portion 19 provides support in the closed position and a coil spring 20 increases smoothness of operation. <IMAGE>
Patent GB-2124148-A (GB)
Title: Apparatus for laminating glass
Inventor: BOVONE LUIGI
IPC: C03C27/12
Filed: 1982-07-21
Abstract: Device for the production of laminated glass which, in combination with a conveyor 1 and a movable sucker device 15 overlying the latter, comprises a movable table 22 provided with a comb plane 30. Said plane is insertable in the conveyor and raisable to lift a plate or sheet 4 and transfer the latter away from the conveyor, where the sheet of plastics material is laid thereon. <IMAGE>
Patent GB-2106929-A (GB)
Title: Solid detergent material
Inventor: NIIMI YUKIHISA
IPC: C11D17/00
Filed: 1982-10-05
Abstract: A detergent material which can be formed into a bar or other shape comprising (a) 15 to 40 weight% of a salt of an alkyl sulfate having an alkyl group of 10 to 18 carbon atoms, (b) 0.1 to 3 weight % of fatty acid ethanolamide having a fatty acid residue of 10 to 18 carbon atoms, (c) 1 to 8 weight % magnesium sulfate, and (d) 10 to 25 weight % of a water-insoluble inorganic substance.
Patent GB-2111904-A (GB)
Title: Formation of plastic envelopes
Inventor: HATHAWAY CHARLES T
IPC: B42F5/04
Filed: 1982-10-13
Abstract: The invention includes apparatus for and process of forming a plurality of plastic mounting envelopes from continuous plastic sheet material through cutting the plastic and bead sealing the margins by providing a high energy source to sever the plastic and bond the marginal edge of said plastic without physical contact. The invention also includes said plastic envelopes to serve as mounts and protectors for receiving flat paper objects such as stamps, letters, etc.
Patent GB-2129941-A (GB)
Title: Tachograph monitor
Inventor: RICHARDSON GRAHAM STANLEY
IPC: G07C5/04
Filed: 1982-10-21
Abstract: The tachograph monitor comprises a display device (17), for visually displaying a time, a timer (3) to indicate time elapsed from a given starting time, a control device comprising a data store to store time signals from the timer and a device, to be located in the tachograph, to detect via leads (9, 11 and 13) in which category of time e.g. driving time, active work time, non-active worktime, rest time the tachograph is operating; the control device operating, in respect of at least the category of drive time recorded by the tachograph, as determined by said device, to store a signal indicating the elapsed time the tachograph has been recording in that category of time and for causing the stored signal to be displayed in the display device when required. <IMAGE>
Patent GB-2113434-A (GB)
Title: Data processing apparatus having alterable interest rate mode capability
Inventor: AGRAWAL MAHENDRA P
IPC: G06Q40/00
Filed: 1982-12-02
Abstract: A data processing apparatus (100) having preprogrammed functions for calculating interest rate dependent variables employs an interest rate mode designation command to enable operation in a selected one of a set of interest interest rate modes. Actuation of an AEC key (130) advances the interest rate mode in a circularly sequential manner among annual percentage rate (107), annual effective interest rate (108) and annual continuous interest rate (109). Actuation of a key sequence including a compute key (123) and the AEC key enables conversion of an interest rate specified in a first mode into an interest rate specified in the next sequential mode. An indication of the current interest rate (107, 108, 109) is provided. A further embodiment enables entry of separate numbers of annual payment periods (131) and annual compounding periods (132) for use in the preprogrammed interest rate dependent functions. This separate designation of payment periods and corresponding periods is useful computing certain annuities and Canadian mortgages. <IMAGE>
Patent GB-2132475-A (GB)
Title: Apparatus for holding and drying an applicator for paint or the like
Inventor: FURNISH JOHN
IPC: A46B17/06
Filed: 1982-12-22
Abstract: Apparatus 1 for holding and drying an applicator for paint such as a paint brush 2, the whole of the paint brush head being held in the apparatus which closely conforms to the shape of the head and maintains that shape, the apparatus 1 including a surface layer which is in contact with and which absorbs moisture from the brush head after use of the brush. The apparatus is re-usable. <IMAGE>
Patent GB-2135548-A (GB)
Title: Amplifier arrangement
Inventor: MURRAY BRUCE
IPC: H03F3/45
Filed: 1983-02-14
Abstract: The inputs (3, 4) for a differential amplifier are connected through respective level shift stages (T4, R6, S1 and T5, R7, S2) to the bases of respective transistors (T1, T2). The emitters of these transistors (T1, T2) are connected through respective resistors (R1, R2) to a current source (T3, R5) whilst the collectors are connected to respective collector load resistors (R3, R4). The output (5, 6) is also connected to the said collectors and in order to ensure that the common mode voltage of this output follows the level present at one of the input terminals (4) this terminal is connected to the inverting input of a differential amplifier (A) whose non- inverting input is connected to the junction of equal value resistors (R8, R9) connected between the collectors of the transistors (T1, T2). The output of the differential amplifier (A) is connected to the current source (T3, R5) to control its current and hence the common mode voltage. <IMAGE>
Patent GB-2136952-A (GB)
Title: Fabry perot sensor
Inventor: WILLSON JOLYON PETER
IPC: G01B9/02
Filed: 1983-03-16
Abstract: A sensor responsive to magnetic field strength employs a feedback control loop operating on a piezoelectric stretcher element (13) to maintain a predetermined phase relationship between the optical path lengths of first and second Fabry Perot optical fiber/waveguide interferometer cavities (4, 11) optically in series. The control signal for the loop is derived from monitoring the transmission of the series combination and compensates for changes in optical path length in one of the cavities, the sensor cavity (4), induced by a magnetostrictive stretcher (7). The arrangement is responsive not only to the magnetic field but also to spurious effects resulting from temperature changes and so a reference cavity (5) thermally strapped to the sensor cavity is employed in a similar configuration to provided a second signal for correction purposes.
Patent GB-2117948-A (GB)
Title: Initiation of devices by high- frequency sound waves
Inventor: SELLWOOD RAYMUND ERNEST
IPC: G08B1/00
Filed: 1983-03-16
Abstract: In order to initiate operation of a device (27, 28, 29), such as an explosive device, an electrical signal from a source (17) is fed to a transmitter transducer (14, 15, 16) which emits high-frequency ultrasonic waves into a solid member (2) which preferably forms part of an existing structure, such as the framework of an aircraft. The ultrasonic waves are received by a receiver transducer (23, 24, 25) which is rigidly fixed to the structure, and the resultant transducer output is fed to the device which is to be initiated. The electrical signal may be modulated (18) so that the ultrasonic waves carry encoded information. This information may be used at the receiving end to select a particular device for initiation and/or to provide a security check before operation of a device is initiated. The receiver transducer may comprise two back-to-back transducer units which are so coupled as to cancel out signals produced therein due to spurious vibrations in the structure. A plurality of transmitter transducers and a plurality of receiver transducers, operating at mutually different frequencies, may be used, so that a respective device may be operated by each frequency. <IMAGE>
Patent GB-2138643-A (GB)
Title: DC-DC Converter
Inventor: GOODMAN MALCOLM
IPC: H02M3/335
Filed: 1983-04-08
Abstract: In a DC-DC converter of the switching type, a power transistor (Tr) is pulsed, and the emitter- collector path of the transistor is in series with the primary of the power transformer (PT). The secondary of this transformer feeds the circuit's rectifier and output. Control is via another transformer which pulses the base of the transistor via windings NS and NB. The pulses are width-modulated for output control. Rapid switch on of the transistor is achieved by positive feedback via windings NC and NB. Rapid switch off of the transistor is ensured by an extra winding (Ne) on the control transistor. This extra winding is in series with the emitter-collector path of the transistor, and is oppositely wound to the main winding (NC) of that transformer. This has been found to greatly accelerate switch off when the drive pulse ends by evacuating charge from the base-emitter junction. <IMAGE>
Patent GB-2125935-A (GB)
Title: Universal joints
Inventor: FISHER LESLIE GEORGE
IPC: F16D3/40
Filed: 1983-08-24
Abstract: A Hookes universal joint comprises a yoke 10 having separate removable limbs 12, 13 each with a bore receiving a bearing cup 19, the limbs interfitting with a body part 17 of the yoke for alignment and the end surfaces of the bearing cups being abutted by formations 22 on the body part to locate them radially of the axis of rotation of the joint. <IMAGE>