baber/WOPTO huggingface dataset:
Patent GB-2044570-A (GB)
Title: A surface acoustic wave device
IPC: H03H3/08
Filed: 1979-03-13
Abstract: A SAW device having a transducer incorporating electrodes is adjusted by removing or rendering disoperative at least a part of at least one electrode. This can be done using, for example, a laser to cut through the electrodes. A SAW oscillator is described which is designed to propagate SAWs along two paths so that they arrive out of phase at the receiving end. The out of phase signals are combined to form a resultant of intermediate phase and this is then fed back to the transmitting end. By applying the invention the relative amplitudes of the signals derived from the respective paths can be changed thereby changing the phase of the resultant signal and accordingly the frequency of the oscillator. <IMAGE>
Patent GB-2020972-A (GB)
Title: Herbal creams
IPC: A61P1/00
Filed: 1979-05-04
Abstract: A herbal cream for the superficial treatment of diseases contains a tincture of golden seal root, a tincture of collinsonia root and tea tree oil.
Patent GB-2021325-A (GB)
Title: Supervisory loop
IPC: H04M3/22
Filed: 1979-05-10
Abstract: In a multi-unit electrical equipment comprising a number of units A, B, Cn, D, each connected to contacts (39, 59) and interconnected by a line (3), a circuit is completed by a unit C2, positioned next to unit C1, which bridges contacts (39, 59) and a contact (19) connected to contact (59) of unit Cn by a line (4). Completion of the circuit in this way avoids the necessity for bridging units to be connected between the contacts (39, 59) at each unit position when checking circuit continuity. <IMAGE>
Patent GB-2022821-A (GB)
Title: Measuring Head for Transcutaneous Measurements
IPC: A61B5/103
Filed: 1979-05-18
Abstract: Apparatus for measurement of the concentration of blood gases which exists by chemical bonding to the haemoglobin, total oxygen concentration, blood pulse, capillary flow and/or flexibility of the blood capillaries, comprises a measuring head 10, in which photoelectric apparatus is built into a reference electrode 100, which in cooperation with electrode 102, electrolyte and membrane 103, is used for polarographic determination of oxygen. Bores 104, 105 in electrode 100 accommodate light emitting diode 106 and detector 107. A movable shutter 110 may be positioned by means 30 (e.g. a mechanical oscillator) such that it permits, in its upper position, reflection from the skin surface 1003, and, in its lower position, scattering from subcutaneous vessels to be measured. Temperature regulation for the head is provided by a gauge and a heater 12. <IMAGE>
Patent GB-2050597-A (GB)
Title: Optical determination of an electrical signal
IPC: G01R23/00
Filed: 1979-06-09
Abstract: Known methods of analysing frequency are disadvantageously slow for some determinations, e.g., monitoring a gas stream velocity which can conveniently be converted into an electrical signal. Apparatus for rapid determination of the frequency components of an electrical signal, comprises an acoustic wave device (5) to which is fed the electrical signal, a sampling laser beam (6) transmitted through or reflected from device (5) at an angle thereto and detector means (9) to detect the diffracted angle and diffracted intensity of light from the beam (6) passing through or being reflected from device (5). <IMAGE>
Patent GB-2052196-A (GB)
Title: Demodulators
IPC: H04B1/50
Filed: 1979-06-27
Abstract: A demodulator of the kind which receives a pair of phase quadrature related signals carrying in combination data to be demodulated comprising a pair of multiplicative mixers 17, 18 to which the phase quadrature related signals are fed, one to each mixer, a phase quadrature device 20, a local oscillator 19 arranged to feed the mixers with local oscillator signals via the phase quadrature device so that the local oscillator signals received by respective mixers are in phase quadrature, a combiner to which output signals from the mixers are fed and a detector 22 fed from the combiner for providing an output signal corresponding to the modulation carried by the phase quadrature related signals. The demodulator may form part of a common channel duplex transceiver for AM or FM reception having a diode detector or Foster-Seeley discriminator. A modulator 7 is also fed with an output from an oscillator 5 which feeds in quadrature a pair of multiplicative mixers 3, 4 at the input of the transceiver. <IMAGE>
Patent GB-2055720-A (GB)
Title: Vehicle sun visors
IPC: B60J3/02
Filed: 1979-08-03
Abstract: An auxiliary sun visor for motor vehicles integral with or affixed to an existing visor comprises a housing for flexible foils withdrawable therefrom through slots in the housing in accordance with the intensity of the dazzle, to extend from, or close gaps around, the existing visor. <IMAGE>
Patent GB-2030623-A (GB)
Title: Improvements in or Relating to Piling
IPC: E02D7/20
Filed: 1979-08-23
Abstract: The invention provides a method of providing a pile foundation for a structure comprising forcing each of a series of piles into the ground until penetration is such that the force required for further penetration is equal to the designed bearing load for that pile with any required safety factor applied. A pile 1 is pushed into the ground by a ram 2, the reaction being taken by a weight 3. A dial 4 shows the weight on the pile which may be recorded by a recorder 5. <IMAGE>
Patent GB-2036794-A (GB)
Title: Solder Preform
IPC: B23K1/14
Filed: 1979-09-06
Abstract: A solder preform (14) for hermetically sealing a cover to a container for a semiconductor package comprises a relatively thick flat ring (15) of an alloy consisting of 58 to 68% tin and 32 to 42% lead and having a characteristic that it solidifies from the fluid state as a homogeneous mixture. The solder preform has a relatively thin coating (16, 17) clad on each surface thereof of an oxidation- resistant alloy consisting of 92% to 98% tin and 2% to 8% silver. The thickness of the ring is preferably of the order of 0.0018 inch and the thickness of the alloy coating is preferably of the order of 0.0001 inch. <IMAGE>
Patent GB-2034114-A (GB)
Title: Method of manufacturing a V- groove IGFET
IPC: H01L29/78
Filed: 1979-10-03
Abstract: In a method of manufacturing a V-groove insulated gate field effect transistor, the required substrate is prepared by introducing impurity material into a surface of a semiconductor wafer (1) of one conductivity type to form adjacent the surface a first layer (3) of the other conductivity type, depositing on the first layer a further layer (5) of material of the one conductivity type, the part (5A) of which further layer adjacent the first layer being relatively highly doped due to out-diffusion from the first layer, and introducing impurity material into said further layer to form a region (7) of the other conductivity type within the part of the further layer not relatively highly doped. A V- groove (9) is then formed extending through the region and further layer into the first layer, and an insulating layer (11) with an overlying conducting layer (13) is formed in the groove (9). Connections (15, 17) are provided to layers (13, 17) and to region (7). <IMAGE>
Patent GB-2038075-A (GB)
Title: A method of and apparatus for isotope separation
IPC: B01D59/34
Filed: 1979-12-14
Abstract: A method of and apparatus for isotope separation wherein an isotopic mixture is diluted by a mixture of diluent gases in a gas reservoir 22 and then solidified on a low temperature retaining plate 2 secured inside an isotope separation chamber 1. The composition of the mixture of diluent gases is selected to shift the absorption wavenumber of a given isotope to be separated to coincide with the wavenumber of an infra red laser beam 1 directed at the plate 2. The given isotope absorbs the radiation raising the temperature of the plate 2. The given isotope is then sublimed off and crystals rich in the given isotope are collected in cold traps 24, 25.
Patent GB-2068435-A (GB)
Title: Improvements in or relating to cutting tools
IPC: E21C35/19
Filed: 1980-02-01
Abstract: A combination of a cutting tool (1) having a shank (6) formed with a non-stick taper (12) together with a tool holder (2) provided with a complementary non-stick taper (34) enables, through the agency of a retaining means (42) the tool to be held firmly in the holder during use and to be easily released. <IMAGE>
Patent GB-2068830-A (GB)
Title: Laminate
IPC: B32B3/16
Filed: 1980-02-07
Abstract: A laminate suitable for cladding the walls of cold rooms, abattoirs, etc., and which can be bent e.g. after scoring to accommodate angles and corners without the application of heat, comprises a substantially rigid backing board 2 of foamed plastics material, a facing layer 12 comprising a flexible sheet of substantially impermeable plastics material, and a flexible and resiliently compressible interlayer 6 of foamed plastics or rubber located between and bonded to each of the board and the facing layer. The board 2 may have an aluminised paper bonded to each face and the interlayer 6 may have a layer 8 of nylon filament netting on one face and an aluminium foil 10 on the other. <IMAGE>
Patent GB-2066508-A (GB)
Title: Automatic electronic sewing machine
IPC: G05B19/40
Filed: 1978-07-14
Abstract: An automatic electronic sewing machine is capable of automatically sewing a button hole by shifting a needle while moving a work forward and backward. An indication means is provided to indicate whether the work is being moved forward or backward. The indication means may be a lamp which is continuously illuminated when the work is fed in one direction, and intermittently illuminated when the work is fed in the reverse direction.
Patent GB-2073397-A (GB)
Title: Gas fuelled heating appliance
IPC: F23D14/38
Filed: 1980-04-08
Abstract: A hand-held gas fuelled heating appliance, typically a blowtorch, has a handle assembly 10 and a burner assembly 30, preferably releasably connected so that burner assemblies with burner heads of different sizes can be interchanged. The handle assembly includes a duct 15 for fuel and a piezo-electric or other electric actuator 17 for energising a spark ignition device 34 at or near the rear end of the burner assembly, there being a mixing chamber 35 in said rear end in which the gas fuel is mixed with air to pass along a passage to the burner head. Sustained combustion takes place at the head, ignition being effected by transient combustion in the passage remote from the head which is communicated thereto. <IMAGE>
Patent GB-2058143-A (GB)
Title: Sputtering electrodes
IPC: H01J37/34
Filed: 1980-07-31
Abstract: A shuttering electrode comprises a number of lengths of elongate section material, typically rectangular or square, arranged to form a closed figure. Such an electrode can be incorporated in sputtering apparatus by clamping to a central cooling member. Magnet means are arranged in the apparatus so that the lines of magnetic flux extend in an arch from one part of the section material to another part thereof, thereby forming an endless tunnel around the periphery of the closed figure.
Patent GB-2073736-A (GB)
Title: Process for Preparing Pyridinyloxyphenoxy Compounds and Derivatives Thereof
IPC: A01N43/40
Filed: 1980-08-01
Abstract: Herbicidal (substituted pyridin-2- yloxy)phenoxy-propionate or -valerate derivatives are prepared by reacting a 4-(substituted pyridin-2-yloxy)- phenol with an appropriate diazo-propionate or -valerate, derivative; by reacting the diazo- propionate or -valerate derivative with one phenolic group of hydroquinone, the other phenolic group then being reacted with the appropriately substituted 2-halopyridine; or by reacting the diazo-propionate or -valerate derivative with a phenol carrying a group which is easily convertible into, or replaceable by, an appropriately substituted pyridin-2- yloxy group, followed by the conversion or replacement step. Also the novel diazo-propionate and -valerate derivatives and a method for their preparation.
Patent GB-2060801-A (GB)
Title: A nipple for a valve, faucet, coupling element, union or the like
IPC: F16L15/04
Filed: 1980-09-05
Abstract: A nipple 1 for a valve, faucet, coupling element, or union, in particular for heating, or sanitary systems, has a threaded portion provided with a sealing coating (13) firmly anchored thereon. As the sealing material, synthetic materials, plastics materials and varnishes, e.g. epoxy varnishes, polyamides or plastically deformable materials can be used. The sealing material can be applied by known methods, such as fluid bed dipping, brushing, or spraying. The sealing coating can also be provided on the sealing surface of the nipple. <IMAGE>
Patent GB-2066870-A (GB)
Title: Overhead working platforms
IPC: E04G3/26
Filed: 1980-10-13
Abstract: The invention relates to overhead working platforms that are supported by suspension from rails or runway beams along which such platforms are translatable relative to an overhead structure. The platform comprises beams 100 each of lattice construction, disposed parallel to each other at spacings corresponding to decking panels extending therebetween, such panels comprise parallel bearers 110 supporting flooring 119 by which the beams 100 are located relative to each other, the bearers 110 extending in a direction transverse to the beams 100. Brackets 113 that straddle the beams receive the ends of the floor bearers 110. <IMAGE>
Patent GB-2072781-A (GB)
Title: Woodscrew
IPC: F16B35/04
Filed: 1981-01-06
Abstract: A woodscrew has a threaded portion 12 with a rolled thread and a conventional entry portion 13. An unthreaded shank portion 11 is of the same diameter as the threaded portion prior to thread rolling so that it is smaller than the crest diameter of the thread. The head 14 may have any conventional form. A raised portion 17 of the shank portion is provided immediately adjacent the head and may be formed during a forging operation which produces the head. The diameter of the raised portion is substantially equal to the crest diameter of the threads to facilitate location of the screw in a hole through which the threaded portion has passed. The raised portion is preferably circular in cross-section, but may also be triangular, lobular, or rectangular in cross-section. <IMAGE>
Patent GB-2068986-A (GB)
Title: Rim Elastomers with Improved Catalyst Efficiency
IPC: C08L21/00
Filed: 1981-01-09
Abstract: A reaction injection molded polyurethane elastomer is made by reacting a polyisocyanate (the A- component) with a high molecular weight polyhydric polyether and a low molecular weight active hydrogen containing compound having a functionality of at least two (the B- component in the presence of a tin catalyst, wherein all of tin catalyst is mixed with the A-component before reaction. Reaction proceeds more quickly with the use of less catalyst than is needed with the conventional process in which the tin catalyst is incorporated in the B-component. Moreover the elastomer properties (tensile strength, tear strength, elongation, impact resistance and sag) are improved.
Patent GB-2092884-A (GB)
Title: Improvements in or relating to shelving systems
IPC: A47B96/02
Filed: 1981-02-12
Abstract: A shelving system comprises shelves 2 having grooves 11 accommodating respective inserts 14. Each insert 14 has a rib 16 for engaging a channel 6a formed in a horizontally protruding tongue 6 on a support member 1 so that the tongue 6 is concealed. The support members 1 are hung on screws protruding from a wall by means of key-hole slots 10. The end faces of shelves 2 are horizontally grooved at 11 to slidably engage a horizontal flange 6 of a shelf support (eg bracket 5). The groove may be lined by a contoured insert 14 (Fig. 2, not shown). The groove and flange may be interlocking (eg dovetail cross sections). The brackets may be engaged by hook-and-slot type mechanism to a support. <IMAGE>
Patent GB-2072783-A (GB)
Title: Fixing device
IPC: F16B13/00
Filed: 1981-02-26
Abstract: A fixing device for low density building materials comprising a member 13 having at least two divergent holes to accept pins 14 to engage in the block 10 of the material, the member 13 having a threaded hole 18 to permit attachment of any item to the block. The recess 19 may be formed by first marking its centre e.g. by hammering a bolt slightly into the block to form a guide hole in which one leg of an L-shaped bar 26 of a tool is received. The other leg of the bar extends out of an elongate slot 27 formed in a tubular body 23 provided with a gapped tubular end 24. The body 23 is driven by hammer blows into the block until an annular flange 25 thereon engages the block. Thereupon the tool is rotated by means of bar 26 to remove a cylindrical core of the block and form the recess 19. <IMAGE>
Patent GB-2094139-A (GB)
Title: Chairs
IPC: A47C3/04
Filed: 1981-03-09
Abstract: A stacking chair has a tubular seat and backrest portion (1), and tubular side members (2,3) forming legs. An elongate projection (5) is connected to the chair at one side of the seat and is directed towards the front of the chair; at the other side of the seat is a projection locating tube (7). The arrangement is such that a plurality of chairs may be interconnected in juxtaposition to form a row by inserting the projections of the chairs into the respective locating tubes of adjacent chairs by relative movement between the chairs in horizontal direction. <IMAGE>
Patent GB-2074097-A (GB)
Title: Supplying ink to a web-printing machine
IPC: B41F31/02
Filed: 1981-04-14
Abstract: The imprinting mechanism which applies printed matter to spaced-apart portions of a running web 11 of cigarette paper in a cigarette making machine receives ink from a container 38 by way of a conduit which contains metering means, eg a gear pump, operated by a drive 56 which responds to the running speed of the web, eg by being connected to the variable-speed main prime mover of the cigarette making machine. The ink in the container 38 is acted upon by compressed gas, either directly or through the medium of one or more reciprocable or deformable walls of the container, and is subjected to a pressure which is high enough to immediately cause ink to flow toward and into the gear pump as soon as the latter is set in operation by the crank drive. The connection between the gear pump and the drive which is, as shown, preferably a crank drive comprises a one-way clutch 49 so that the gear pump is operated intermittently and breaks up the supplied continuous stream of ink into a series of discrete batches. The throw of the crank drive, and hence the quantity of ink in each batch, can be regulated by a lever 61 which can change the extent of angular displacement of the output element of the crank drive in response to each revolution of the input element of such drive. <IMAGE>
Patent GB-2079373-A (GB)
Title: Air guide member for flow machines
IPC: F04D29/66
Filed: 1981-04-28
Abstract: An air guide member 24 for suppressing the noise of blowers, fans or like flow machines, has a cross-section formed by at least one concentric annular row of flow passages separated from each other by substantially radial wall sections which extend obliquely in the axial direction. Each annular row (21) consists of a plurality of identical preformed individual members which define a respective passage 20. The members support each other and are bundled together to form an annularly closed and centered flow unit. <IMAGE>
Patent GB-2080823-A (GB)
Title: Method of obtaining 4,4-dimethyl-1,3-dioxane
IPC: C07D319/06
Filed: 1980-02-13
Abstract: This method is used for production of isoprene which serves as a raw material for synthetic rubber. The method consists in reacting isobutylene with an aqueous solution of formaldehyde within the interval of temperatures of 60 to 90`C, at a pressure of 6 to 18 atm and in the presence of a salt of polysulphonic acid of formula R(SO<u3>uH)n as an acid catalyst, where n is an integer equal to 2 or 3, R is a C<u1>u-C<u4>u alkyl or unsubstituted phenyl or substituted phenyl, and a metal of groups I and II of the periodic system or a mixture of that salt with sulphonic acid.
Patent GB-2090205-A (GB)
Title: Wheel Chair for Escalator Transport, Escalator for Wheel Chair Transport and the Combination Thereof
IPC: B66B31/00
Filed: 1981-12-08
Abstract: Lever (A) mounted on the wheel chair has a follower (13) which engages a track (T) in the side wall (11) of the escalator. As lever (A) rotates front wheel supports (W2) are extended by means of a rack-and- pinion mechanism driven by sprockets 50, 32 and chain 33 to keep the wheel chair level during ascent and descent. An anchor B is also extended by lever A into engagement with the flights F of the escalator. Escalator motion control means is operated by the follower (13) for stopping and starting the escalator. <IMAGE>
Patent GB-2118790-A (GB)
Title: Universal motor control
Inventor: BRYAN ARTHUR BRISCOE
IPC: H02H7/085
Filed: 1982-02-16
Abstract: A control system for an electric motor for driving power tools has an electronic overcurrent protection circuit for the motor, wherein the peak voltage developed across a series resistor (R2) is detected and charges a capacitor (C4) accordingly. Should the voltage on the capacitor (C4) rise above a predetermined level corresponding to the motor current rising above an acceptable limit, this is detected by a comparator (IC2) which triggers a bistable circuit (IC1) whereby to render a triac (T1) in series with the motor (10) non-conductive. The system can accept either 110V a.c. or 240V a.c. mains by virtue of the provision of a voltage sensitive relay (12) which, in the event that the system is connected to 240V a.c., introduces extra resistance (R3) into a motor speed control circuit 18. <IMAGE>
Patent GB-2098383-A (GB)
Title: Lead-acid battery
IPC: H01M50/529
Filed: 1982-03-19
Abstract: A lead-acid storage battery and method for making same characterized by significantly improved performance characteristics, especially for starting, lighting and ignition applications. Compared to commercially available batteries for such applications, batteries according to the present invention provide substantially improved peak power and cranking power per unit weight and volume, typically achieving improvements on the order of about 25 to 65 percent. Multiple intercell connections and uniquely configured electrode plates are combined with other modified physical parameters in a novel manner to obtain such improvements, employing, if desired, pre-molded containers of standardized external dimensions. <IMAGE>
Patent GB-2100854-A (GB)
Title: Solid fuel combustion appliances
Inventor: COUCHMAN WILLIAM JOHN ROBERT
IPC: F24B1/02
Filed: 1982-06-23
Abstract: A solid fuel combustion appliance (1) incorporates a secondary combustion apparatus (13; 13') in addition to a primary combustion compartment (2). The secondary combustion apparatus (13; 13') comprises at least one chamber (20; 20') having an internal flue (16; 16'') of a refractory material. The or each chamber (20; 20') has an inlet (19) for receiving combustion gases from the primary combustion compartment and an outlet (17) which communicates with a main flue (11) open to atmosphere. An air supply is introduced at the level of the inlet (19) so as to support secondary combustion within the chamber(s) (20; 20'). <IMAGE>
Patent GB-2106777-A (GB)
Title: A doubly extensible bed or reclining chair having an extended foot member
Inventor: BOLTE JOSEPH
IPC: A47C17/13
Filed: 1982-06-25
Abstract: A doubly extensible bed or reclining chair, including a basic frame (10), a seat frame (20) capable of being extended from the basic frame with a back member (11) hingedly connected to the seat frame, and a front box member (30) capable of being extended from the seat frame, characterised in that a foot frame (36) is inserted in the front box member (30) and is hingedly connected on either side to the side panels (32) of the front box member (30) by means of two control levers (33, 34) and the foot frame (36) is outwardly pivotable from the front box member (30) beyond the end panel (30a) of the front box member (30) by the control levers (33, 34) to further extend the reclining surface. <IMAGE>