baber/WOPTO huggingface dataset:
Patent GB-2087177-A (GB)
Title: Method and apparatus for stabilizing a carrier tracking loop
IPC: H03L7/10
Filed: 1979-02-27
Abstract: In a logging-while-drilling apparatus, acoustic carrier waves in a borehole fluid are PSK modulated in accordance with digital data representative of downhole measurements. The PSK modulation is obtained by momentarily unidirectionally changing the frequency of the acoustic carrier signal. An uphole receiving subsystem converts the modulated acoustic carrier waves to electronic signals and demodulates the electronic signals to recover the measurements. The electronic signals are coupled to a phase-locked loop which locks onto the carrier of the received signal, and provides timing signals for the demodulation. The phase-locked loop includes a VCO (204) and a comparator (202) for comparing the phase of the received PSK-modulated signal with the phase of a signal derived from the VCO (204). The phase-locked loop (120) also includes a variable band-width filter 203. The control applied to the VCO (204) is compensated as a function of transitions in the received signal to account for the difference, arising from the unidirectional nature of the carrier modulation, between the nominal frequency of the carrier and the average frequency of the received signal. <IMAGE>
Patent GB-2099274-A (GB)
Title: Automatic feeder
IPC: A01K61/80
Filed: 1981-05-22
Abstract: Apparatus for automatically distributing food to fish tanks 7 comprises a central processing unit (CPU) 1 having a keyboard 19 and display unit 18 which calculates necessary augmentation of food pellets to the tanks on the basis of the oxygen content of the water in the tanks determined by temperature and specific weight measurements taken on the water in each tank by means of metering devices 16, 17. Food is passed from silos 2 along a conveyor 3 to a sieve 4 and thence to a weighing device 6 which controls the amount of food dispensed under the control of the CPU. A further conveyor 8 leads to a hopper 9 and distributing valve (not shown), also controlled by the CPU, which distributes the food to a selected one of a plurality of conduits 13 for passage to an appropriate tank 7. <IMAGE>
Patent GB-2077037-A (GB)
Title: Semi-conductor barrier-layer electron detector
IPC: H01L31/118
Filed: 1981-05-29
Abstract: A semi-conductor barrier-layer detector for the detection of electrons has a semi-conductor structure comprising a barrier-layer formed e.g. by a pn junction between a semi-conductor base (1) and a region 3. In order to increase detection accuracy and sensitivity, and the limit frequency, the base material (1) is made highly resistive but has a thin low-resistance layer (2) abutting the region 3 of opposite type. <IMAGE>
Patent GB-2080966-A (GB)
Title: A zoom lens of high vari-focal ratio having negative front lens group
IPC: G02B15/20
Filed: 1981-06-17
Abstract: The present invention relates to a compact zoom lens with high zoom ratio, having vari-focal range including wide-angle. It is so designed so that the positive rear lens group of the so- called two-group zoom lens, where the front lens group has negative and the rear lens group has positive refractive power, is divided into three components which are positive, negative and positive at least the first and third of which are movable. The spaces between these three components are varied in such manner that the principal point PT-PW of the rear lens group moves more extensively than the movements of the three individual lens components. By such an arrangement of lens components, the movements of individual lens components can be relatively small, despite the high zoom ratio, while variation of aberration due to lens movement can be reduced. In the embodiments (Figs. 3, 5, 7 and 9 not shown) each component comprises at least 2 lenses. <IMAGE>
Patent GB-2080399-A (GB)
Title: Safety device for a door fastening
IPC: D06F37/42
Filed: 1981-07-22
Abstract: A safety device for preventing opening of the door of a washing machine during operation thereof, comprises a spring-loaded sliding bolt member (12) which blocks movement of the handle (9) of the door (7) of the machine when moved in direction B by a solenoid (15). A further solenoid (21) holds the bolt member in its fastening position. Unlocking of the door (7) occurs only at the end of a cycle after a delay caused by a bimetal (not shown) to allow the drum to stop. An auxiliary capacitive circuit releases the fastening if the power fails. <IMAGE>
Patent GB-2083889-A (GB)
Title: Valve
IPC: F16K17/22
Filed: 1981-08-27
Abstract: In a fluid flow control valve which closes in response to fault conditions, both sides of a pressure responsive actuator, which may be a diaphragm (40) or piston, are exposed to the pressure prevailing along the flow path between an inlet 18 and an outlet 20, so that when the valve closes pressure equalises across the diaphragm or piston. The flow-path is either through a variable orifice, such as provided by a clearance at an adjustable needle member, (60) for example, or is through a fixed orifice such as a drilling through the valve body (10) or valve member (26), or a slit or other piercing through the diaphragm. After closure of the valve the flow permitted through the by-pass is extremely small indeed, The valve is typically a minimum excess flow valve passing a flow used for instrumentation purposes in process plant. <IMAGE>
Patent GB-2110800-A (GB)
Title: Processing of vermiculite
Inventor: TILBURY DAVID WILLIAM
IPC: F27B7/20
Filed: 1981-11-02
Abstract: Apparatus for processing vermiculite comprises a rotary furnace (12), in combination with a rotary pre-heater (10). Vermiculite to be treated is passed through the preheater in counter-current to exhaust gases from the rotary furnace (12). Residual heat in the exhaust gases preheats vermiculite to a temperature just below the point at which it begins to expand. The exhaust gases contain water expelled during expansion of vermiculite in the furnace so that they do not dry out the vermiculite in the preheater. The rotary furnace (12) has a tapered tubular flame housing (40), extending outwardly away from a burner (42). The housing is preferably made of a refractory material. <IMAGE>
Patent GB-2093052-A (GB)
Title: Process for granulating a powder
IPC: B01J2/00
Filed: 1981-12-15
Abstract: A process for granulating a powder comprises:-   a) a binding agent (such as starch, carboxymethyl cellulose or guar gum), usually in concentrated aqueous solution, is mixed with a liquid medium, usually an organic liquid, in which the binding agent is insoluble, to form an emulsion; b) the emulsion is sprayed onto a powder (such as lactose, sucrose, potato starch or a pharmaceutical product) to be granulated; and c) the liquid medium is evaporated, whereupon the binding agent dispersed in the powder forms agglomeration nuclei around which the powder forms granules.   The process may be carried out in an evacuated vessel into which the emulsion is sprayed by being sucked thereinto; a vessel is illustrated which is provided with mixing and stirring devices and which is swingable so that the drum axis is tiltable anticlockwise and clockwise. By this process granules can be produced in a closed system without first forming a caked paste.
Patent GB-2112187-A (GB)
Title: Programmable frequency generator
Inventor: ROPER TIMOTHY ALAN
IPC: H03B19/00
Filed: 1981-12-22
Abstract: A programmable frequency generator comprising a stable oscillator (14) whose output is supplied to an M stage rate multiplier (16) to which a predetermined program number (N) is applied, the output therefrom is applied to a divider (18) which divides the dividend by a divisor K. The value of the divisor K is such that any jitter in the output of the multiplier (16) can be reduced to an acceptable level. By using a rate multiplier the frequency increment for successive values of N is identical and also the frequency can be changed without any discontinuities in phase so that the generator is suited to producing audio tones in frequency shift keying. For this purpose an S stage waveform simulator (22) can be coupled to the output of the divider (18) thereby enabling small frequency increments to be produced. The programmable frequency generator can comprise binary and/or decimal elements. The programmable frequency generator is applicable to general purpose frequency generators for say test equipment as well as in signalling.   <IMAGE>
Patent GB-2098600-A (GB)
Title: Sulphonamido-containing 2,5- diacylaminophenol cyan couplers for cyan dye imaging
IPC: C07D233/78
Filed: 1982-03-12
Abstract: A method for forming a cyan dye image by imagewise processing of a silver halide color photographic photosensitive material in the presence of a 2,5-diacylaminophenol cyan coupler is disclosed. The acylamino group at 2- or 5-position of the phenolic nucleus of the cyan coupler has a substituent of the formula (I):   <IMAGE>  [wherein R1 is   <IMAGE>  R2 is an alkylene group; R3 is an alkyl group; R4 is a hydrogen atom, an alkyl group or an acyl group; X is a group that can be introduced in the benzene ring as a substituent; n is an integer of 1 to 3; R3 and R4 may, when taken together, form a 5- or 6- membered ring of non-metallic atoms].
Patent GB-2113711-A (GB)
Title: Production of alcohol by continuous fermentation
Inventor: KIDA KENJI
IPC: C12P7/06
Filed: 1982-03-30
Abstract: In a process for producing ethyl alcohol from a sugar by continuous fermentation using a fermentation apparatus of the fluidized bed type, bacteria having ability to effect alcoholic fermentation are deposited on a carrier which is fluidized.
Patent GB-2098855-A (GB)
Title: Foldable cupboards
IPC: A47B43/00
Filed: 1982-05-07
Abstract: A cupboard assembly having a back panel, side panels hinged to the back panel one at each side of the back panel, a rigid base supporting the back and side panels and holding them in their in-use attitudes, a top cover member co- operating with the back and side panels, and a front cover member co-operating with the side panels and the base, the front cover being in the form of a roller shutter. <IMAGE>
Patent GB-2101412-A (GB)
Title: RF shielding apparatus
Inventor: WOODWARD OAKLEY MCDONALD
IPC: H05K9/00
Filed: 1982-06-24
Abstract: A non-contacting RF shield inhibits the flow of energy in a given frequency band through an interface area between two conductive surfaces (88, 92), Fig. 5. A series of stub-like members (56, 58, 60), Fig. 4, are open circuited at one end and connected to a common conductive member (62) on the other end. A portion of one conductive surface (88) is spaced from the stubs such that a plurality of microstrip lines are formed. The open circuits at the one end of the stubs reflect back as low impedance paths between the first surface and the other end of each of the stubs. The common conductive member (62) is coupled to the other conductive surface (92). This provides a plurality of low impedance paths between the conductive surfaces (88, 92) in the given frequency band without direct physical contact between the conductive surfaces. In another shield, pairs of conductive stubs (41b, 43b), Fig. 6b, are connected by conductors (45b), the stubs and conductors being supported on a dielectric support (49b) which is wrapped around a resilient core (61), Fig. 7, the support being outermost to form a compact RF gasket. The gasket is placed between two conductive surfaces (69, 71) to provide a low impedance path between them. <IMAGE>
Patent GB-2103066-A (GB)
Title: Improvements relating to tobacco processing
Inventor: MITCHELL TERENCE GEORGE
IPC: A24B15/24
Filed: 1982-07-09
Abstract: A tobacco-treatment process comprises mechanically expressing cell-sap from yellowed, substantially undried, tobacco-leaf material, impregnating the fibrous material remaining after the expression with said cell-sap or with parts or components of said cell-sap or with cell-sap expressed from other yellowed, substantially undried, tobacco leaf material, and drying the sap-impregnated material. The harvested leaves may be treated in an enclosed atmosphere, suitably with a relative humidity of 70% or more and a temperature in the range of 20 to 40 DEG C. Ethylene gas may be introduced into the atmosphere to promote the yellowing. The tobacco leaf material may be cut before being subjected to cell-sap expression. Before the impregnation with cell-sap, the sap, or parts or components thereof, may be subjected to a fractionating process to reduce the content therein of one or more constituent compounds. Before the sap expression, an antioxidant may be added to the leaf material or an antioxidant may be added to the cell- sap or parts or components thereof. An enzyme may be added to the cell- sap or parts or components thereof.
Patent GB-2106203-A (GB)
Title: A retaining device for holding in position a substantially U-shaped return spring in a drum brake
Inventor: SAKATA MITSUO
IPC: F16D51/00
Filed: 1982-08-11
Abstract: The device comprises a spring holder 50 made of an elastic sheet material for holding an intermediate portion of spring 48 and further comprises engaging means for preventing the spring holder 50 from slidably moving more than a preset distance along the length of the return spring 50. The spring holder includes a U-shaped fixing portion 54 elastically gripping a portion of a web 22 of one of two brake shoes 14, 16 which are biased by the return spring. The engaging means may comprise a recess 60 formed in (through) the web and a projection 52 protruding from one of walls of the U-shaped fixing portion. The projection engages the recess with clearances such that the fixing portion can slide across and along the length of the return spring within preset distances. The engaging means is alternatively a pair of protrusions (Figure 4) secured to the surface of the intermediate portion of the return spring, which protrusions are spaced along the length of the return spring with predetermined clearance. <IMAGE>
Patent GB-2121500-A (GB)
Title: Fluid coupling
Inventor: MAKISHIMA REICHI
IPC: F16L37/40
Filed: 1982-11-24
Abstract: A fluid coupler has a valve 17 disposed in a socket 11 displaced by a plug 15, when the socket is joined to the plug, to retract the valve against the elastic force of a compression coil' spring 20 to disengage the valve from a valve seat 14 to open a fluid passage and provide a clearance between the adjoining helices of the compression coil spring for allowing a fluid to pass therethrough. The compression coil spring includes a leading end portion 26 being bent to extend in a direction to cross a valve accommodating chamber. The extending portion being a regulating portion for retaining the most retracted position of said valve in an incompletely compressed state of said compression coil spring to permit fluid to freely flow in a first through direction and in a reverse flow direction. <IMAGE>
Patent GB-2132116-A (GB)
Title: Crop grader
Inventor: ROGER-BROWN DONALD
IPC: B07B1/10
Filed: 1982-12-16
Abstract: In a grader for the sizing of vegetable or fruit crops, a series of primary rollers 1 are connected by links 3 of a chain so as to be driven in a closed loop path. Secondary rollers 16 are suspended on the primary rollers 1 by means of pivot links 15 and these secondary rollers are supported at adjustable levels by means of secondary support rails 21 which are adjustably mounted on stanchions 8. The gap between a roller 16 and the non- associated adjacent primary roller 1 can thus be adjusted in accordance with the spacing of the roller 16 from the line of the roller 1. In order to prevent lodgement of crop between a roller 16 and its associated primary roller 1, a filling piece 31, which may also act as a cleaning device by means of distal edges 32, is provided. The rollers 1 and 16 are shown as being driven at the same peripheral speed by frictional contact with friction surfaces 6 and 22 on their respective support rails 7 and 21. <IMAGE>
Patent GB-2133209-A (GB)
Title: A triggered vacuum gap device
Inventor: MELLOR DAVID JOHN
IPC: H01J21/02
Filed: 1982-12-24
Abstract: A triggered vacuum gap device consists of a circular anode 1, 5 and a circular cathode 2 mounted to form part of an evacuated chamber. A trigger element is positioned adjacent to the cathode in electrical contact therewith, and the element consists of an annular film or surface layer 10 of carbon which is sintered into a ceramic support 6 of tubular form. The latter carries a trigger electrode in the form of a metallic coating 7. A further metallic layer 9 facilitates brazing of cathode 2 to ceramic tube 6. <IMAGE>
Patent GB-2113571-A (GB)
Title: Lining of pipes
Inventor: BRADLEY WILLIAM GEORGE
IPC: B05C7/08
Filed: 1983-01-14
Abstract: Underground water pipes are lined by boring out the pipe using a cutter (12), subsequently gaining access to a point or points intermediate the ends of the bored out length so that the bored out length is divided into at least two separate sections, introducing a "pig" (16) into a first section of the pipe and by means of an apertured cover plate (18) applied to the inlet end of the first section using the pig to traverse a length of flexible wire (20) through the first section, using the flexible wire to pull through a coating device (26) for applying a bituminous or epoxy resin and subsequently using the "pig" to traverse the flexible wire through the or each remaining section of bored pipe in turn, the flexible wire then being used to pull the coating device through the or each remaining section of bored out pipe in its turn. <IMAGE>
Patent GB-2117138-A (GB)
Title: Fire fighting systems
Inventor: MARTIN-GUTIERREZ ARTURO
IPC: G08B17/00
Filed: 1983-03-07
Abstract: In a fire detection and extinguishing system detectors (23) responsive to fumes, infra red radiation, and temperature and a nozzle (26) for an extinguishing material are mounted on a support (18) rotatable around vertical (20) and horizontal (27) axes respectively by crank drives (13, 15) and (14, 16) from separate motors (11) (12). The detectors are connected to a decoding system which operates each motor successively to move the support until the detectors and nozzle are pointing at a fire, and subsequently operates a further motor to open a flow control valve for the extinguishing material. An audible and/or visual signal may be included. <IMAGE>
Patent GB-2117224-A (GB)
Title: Method of, and apparatus for, leg severing
Inventor: O'NEALE LINDSAY DAVID
IPC: A22B5/00
Filed: 1983-03-23
Abstract: The leg is suspended with a probe and then probe and leg are pivoted into horizontal plane to bend the joint whereupon the probe is extended to find the fold so that the first cut can be made opposite the fold of the leg, allowing sufficient relative movement between the lower leg regions and the upper leg regions of the leg or legs having the opening cut so as to further distort the joint and thereafter making a second cut from the same side as the first cut although possibly at a different angle so as to sever the lower leg regions from the carcass, said second cut commencing in the open cut resulting from the first cut and at some region of the joint so as to minimise, if not, avoid completely bone cutting and achieving severance. Preferably the carcass is also supported below the severed joint and both fore legs and rear legs can be severed. <IMAGE>
Patent GB-2117063-A (GB)
Title: Drive units
Inventor: ALDRICH ALLYN M
IPC: F16H61/4183
Filed: 1983-03-24
Abstract: A drive unit 11 is suitable for operating a thrust reverser 10 of an aircraft engine. A rotary hydraulic motor 13 has a number of pistons 14 and is controlled by a wobbler 23. The wobbler 23 is connected to a control arm 37 and moved through a ball joint 36 by a piston 33. The piston 33 is subject to the pressure of a spring 38 for moving the wobbler 23 to a stow position 24 at a low rate, and to hydraulic pressure from a solenoid- operated valve 28 for moving to a deploy position at a high rate. A brake 18 is applicable to an output shaft 17 of the motor 13. A valve 61 regulates the return flow from the motor 13 for controlling the motor speed. <IMAGE>
Patent GB-2137184-A (GB)
Title: Removal of Organo-Lead Ions from Lead Alkyl Effluents
Inventor: BASS DONALD RALPH WILLIAM
IPC: C02F1/28
Filed: 1983-03-25
Abstract: A method for the removal of organo-lead ions from dilute aqueous solutions containing such ions in amounts (calculated as lead) of up to 100 ppm, which comprises passing the solution through a bed of chemically clean zinc particles, wherein the solution is passed on a substantially continuous basis upwardly through the bed of zinc particles whilst maintaining said particles in a state of continuous agitation.
Patent GB-2118580-A (GB)
Title: Window for washing machines
Inventor: VENTURELLI LUIGI
IPC: D06F39/14
Filed: 1983-04-13
Abstract: A window for a washing machine comprises a glass member (1) having a circumferential edge (2) which projects outwardly and an annular support (3) of plastics material for the said window. The support (3) comprises two complementary rings (4, 5) which nest together and have two flanges or opposing end portions (9 to 12) towards the centre between which the circumferential edge (2) of the glass member (1) is secured after the two rings have been joined together. <IMAGE>
Patent GB-2120410-A (GB)
Title: Control system for an internal combustion engine
Inventor: RITCHIE ALISTAIR JOHN FORSTER
IPC: F02D41/24
Filed: 1983-04-14
Abstract: A control system for an internal combustion engine includes a processing unit 10 having a first memory 15 in which is stored the operating program for the processing unit and a second memory 16 which contains engine operating data. The two memories each contain an identification word or words which can be compared to make sure that the two programs are compatible. The second memory 16 may be a plug-in device. <IMAGE>
Patent GB-2131203-A (GB)
Title: Diagnostic system for an internal combustion engine
Inventor: TAKAHASHI TOSHIO
IPC: F02D31/00
Filed: 1983-09-30
Abstract: The system comprises a starter operation diagnostic circuit 21 responsive to the output voltage of the starter operation sensor 6 for producing an output when the output voltage errs from a predetermined value, an engine speed detecting circuit 1,35,36 for detecting an engine speed at cranking of the engine, a first gate 40 responsive to the output voltage of the detecting circuit and for producing an output for a predetermined time. A second gate 32 is responsive to the output of the first gate to pass the output of the starter operation diagnostic circuit, and a warning lamp 15 is operated by a signal passing through the second gate. <IMAGE>
Patent GB-2131140-A (GB)
Title: Heating method and apparatus
Inventor: DE FANTI GIOVANNI
IPC: F23G5/46
Filed: 1983-11-23
Abstract: In a method of heating buildings utilising waste material a fuel, the waste is dried in a dryer 3 and then transferred to a silo 5. As required dried waste is withdrawn from the silo and crushed in a cutter 6 and drawn by suction to a cyclone 8. Separated waste from the cyclone and air pass to the combustion chamber of a bailer 10. Air from the upper part of the cyclone 8 is passed to the interior of the boiler 10 to produce a better circulation of fumes and improve combustion. Water from the boiler is used to heat the drier 3. <IMAGE>
Patent GB-2133820-A (GB)
Title: Tie for a cavity wall
Inventor: BOTTOMORE DAVID
IPC: E04B1/41
Filed: 1984-01-18
Abstract: The tie (1) includes first and second annuli (2,3) rigidly connected by a shaft (4). The first annulus can be pivotably secured to one leaf of the cavity wall structure, and the second annulus can be pivotably secured to another leaf of the cavity wall structure. <IMAGE>