baber/WOPTO huggingface dataset:
Patent GB-1287441-A (GB)
Title: A method of making an electrical connection to a semi-conductor device
Inventor: WALL DAVID THOMAS
IPC: H01L21/288
Filed: 1969-03-06
Abstract: 1287441 Coating with metals JOSEPH LUCAS (INDUSTRIES) Ltd 12 Feb 1970 [6 March 1969 2 Dec 1969] 11920/69 and 58726/69 Heading C7F [Also in Division H1] An electrical contact for a semi-conductor device is formed by depositing a layer of Ni not more than 0À3 Á thick on the semi-conductor body, heating the body so as to diffuse Ni into it but also so as to leave a layer of free Ni on the surface, and making the electrical connection to the layer of free Ni. The Ni deposition is preferably by electroless plating from a solution of nickel acetate, glycollic acid, tetra- or disodium EDTA and hydrazine as the reducing agent, at 75-95 ‹C. and a pH of 10À0-11À5, after a preliminary treatment involving immersing in HF, rinsing and immersing in gold chloride solution. The attachment of the electrical connection, which may take place in the same 320‹C. heating step as the diffusion or in a subsequent step, may employ a Sn/Pb alloy solder.
Patent GB-1400156-A (GB)
Title: Liquid dispensing devices
IPC: B65D47/10
Filed: 1971-12-17
Abstract: 1400156 Container closures WADDING- TON & DUVAL (HOLDINGS) Ltd 17 Nov 1972 [17 Dec 1971] 58841/71 Heading B8T A cap 6 on the neck 8 of a sealed flexible container 2 has a spout 10 closed during transit by a removable plug 12. A hollow cylindrical pointed probe 14 is attached by a frangible strap 16 to plug 12, and one end is secured in a flexible spout 4. In use, plug 12 is removed from spout 10 and the pointed end 20 of probe 14 inserted, the point piercing seal 5 over the mouth of container 2. End 20 of probe 14 has cut-out portions, and the contents of container 2 can be dispensed by squeezing.
Patent GB-1221940-A (GB)
Title: Improvements in or relating to the manufacture of flat glass
IPC: C03B18/14
Filed: 1967-12-28
Abstract: 1,221,940. Flat glass manufacture and treatment. PILKINCTON BROS. Ltd., A. S. ROBINSON, and J. LAWRENSON. 22 Nov., 1968 [28 Dec., 1967], No. 58939/67. Heading C1M. In the manufacture of flat glass in which a ribbon 29 of glass is advanced on a bath of molten metal 11, opposite regions of the margins 44 of the ribbon 29 are lifted off the bath surface 12, as by pairs of rollers 30, 31 and allowed subsequently to collapse to form continuous marginal ridges 45 along both edges of the ribbon 29 and a pool 48 of molten material is maintained on a part of the upper surface of the glass ribbon so that the ribbon advances beneath the pool to be given desired surface characteristics thereby, the pool 48 being confined laterally by the ridges 45. Movement of the pool 48 with the ribbon 29 is inhibited by the rising of the ribbon on to the conveying rollers 19 so that the forward edge 49 remains stationary. Specification 1,151,853 is referred to.
Patent GB-1334539-A (GB)
Title: Thiepin derivatives their production and compositions containing same
IPC: C07D495/14
Filed: 1970-12-17
Abstract: 1334539 Polycyclic thiepin derivatives CIBAGEIGY AG 17 Dec 1970 [23 Dec 1969 (2)] 59837/70 Heading C2C Novel compounds of formulµ and their pharmaceutically acceptable acid addition salts, wherein R 1  is H, allyl or C 1-4  alkyl; these compounds are prepared by (1) reacting the appropriate 4,5-bis-(bromomethyl) thienobenzothiepin with R 1 NH 2 , or (2) (for R 1  = H) hydrolysing the analogues where R 1  = acyl, e.g. CO 2 Et (obtained from analogues in which R 1  is alkyl, allyl or benzyl and ethyl chloroformate), or where R 1  = CN. Therapeutic compositions for oral, parenteral or rectal administration comprise compounds of the above formulµ, which have a C.N.S. depressant, adrenolytic and histamine-antagonistic action.
Patent GB-1249666-A (GB)
Title: Improvements in reverse current monitor
IPC: H02H3/18
Filed: 1968-12-23
Abstract: 1,249,666. Protective arrangements. GENERAL ELECTRIC CO. 23 Dec., 1968 [26 Dec., 1967], No. 61018/68. Heading H2K. A reverse current protective arrangement, e.g. for a polyphase power rectifier 21 ... 23, comprises saturable current transformers 25, diodes 26 in parallel with the current transformer secondary windings 25s and diodes 27 in series with the secondary windings 25s, the series circuits 25s, 27 being connected in parallel with each other and to detecting means 24. The diode 26 are poled so to conduct when forward current flows in the current transformer primary windings and the diodes 27 are poled so as to conduct when reverse current flows in the current transformer primary windings. The cores of the transformers may have air gaps and be premagnetized by current flowing from a battery 41 through resistors 43 and diodes 42. The detecting means 24 has a control element 31 which initiates an indicating or protective function when a zener diode 35 breaks down to render a controlled rectifier 32 conducting. A further zener diode 36 prevents the premagnetising current from maintaining the rectifier 32 conducting.
Patent GB-1203169-A (GB)
Title: Automatic switch and valve device for use with a pump in a water supply
IPC: E03B5/00
Filed: 1968-12-24
Abstract: 1,203,169. Valves. SAUNIER DUVAL. 24 Dec., 1968 [28 Dec., 1967], No. 61452/68. Heading F2V. [Also in Divisions F1 and H1] An automatic switch and valve device connectible in flow series with a pump 2, e.g. for use with gas-operated instantaneous water heaters, comprises a water inlet 8 and an outlet. When water is withdrawn from the outlet, e.g. via a tap, the fall in pressure in a chamber 6 causes a diaphragm 9 to move to the right to close a switch 29 and thereby start the driving motor (not shown) of the pump. Operation of the pump rapidly increases the pressure difference across the diaphragm which therefore moves to its limit position wherein a perforated cylinder 13 abuts the adjacent one of a pair of flanges 15. Moreover, a spring-controlled valve 18 opens to permit inlet water to flow to the pump. A safety hole 21 in the valve prevents the creation of a pressure difference across the diaphragm when only a small amount of water is withdrawn, e.g. due to a leaking tap. At least some of the components may be of plastics material.
Patent GB-719232-A (GB)
Abstract: 719,232. Bookbinding; albums. SMITH, H. D., and CRONHELM, H. J. Sept. 5, 1952 [Dec. 22, 1951], No. 30073/51. Classes 11 and 16 Photographs 1 are bound in a protective cover 4, 5 by strips of adhesive tape 7, one portion of each strip being attached to a photograph and the other portions of the strips overlapping the photographs in the planes thereof and adhering to one another and being secured to the cover by a staple, a pin or other tying means. The cover 4, 5 is formed of a single strip of cardboard folded at 2 and provided with lines of weakening at 3.
Patent GB-2027612-A (GB)
Title: Pressure Cooker
IPC: G05D23/24
Filed: 1978-08-10
Abstract: A pressure cooker is completely closed and the cooking of its contents is controlled by a temperature or pressure sensor which senses the temperature or pressure of the food being cooked and controls the actuation of a heating element. This avoids loss of food aromas and high energy steam through the usual overpressure valve. Preferably, it is the temperature which is monitored by means of an electrical temperature sensor such as a thermistor held adjacent the pan bottom and the temperature sensor is used as part of electronic circuitry to control the energisation of the heating element for the pressure cooker. Desirably the energisation of the heating element is controlled by an electrical switch which does not completely cut-off the power to the heating element but reduces it to a low value once the desired cooking temperature has been reached. The electronic circuitry may include a comparator circuit controlling the illumination of a light- emitter, light from which falls on a photo-resistor whose resistance controls the switching of the heating element.
Patent GB-2004479-A (GB)
Title: Tool holder and tool holding arrangement for a rock drilling machine
IPC: B25D17/08
Filed: 1978-09-15
Abstract: A tool-holder insertable in a drive spindle (17) of a rock drilling machine comprises a drive bush (30) which has at least one set of drive grooves (50, 51) complementary to drive projections on the drill tool itself and held in the spindle by a guide bush (32) which is screwed into the end of the drive spindle (17) and which may have coupling projections (36) complementary to coupling grooves (37) in the drive bush (30). <IMAGE>
Patent GB-2034086-A (GB)
Title: Drive apparatus for a multi- digit tetrode fluorescent display
IPC: G09G3/20
Filed: 1978-11-10
Abstract: A multi-digit tetrode fluorescent display (11) is arranged in the form of n groups of m digits each and has first and second grids (G11 ... G18), (G21 ... G24). A binary counter (27) counts pulses which are used to shift data signals from a register (22) to the display (11). A first decoder (29) is connected between the lower order bit outputs (C1, C2) of the counter (27) and the second grids (G21 ... G24) whereas a second decoder (31) is connected between the higher order bit outputs (C3, C4, C5) of the counter (27) and the first grids (G11 ... G18). <IMAGE>
Patent GB-2046403-A (GB)
Title: Valves
IPC: F16K17/36
Filed: 1979-01-11
Abstract: A vent valve for a petrol filler cap includes a passageway 50 within which a solid ball 51 is free to move gravitationally between a venting position in which the passageway is open and a closed position in which the ball engages a seating 55 to prevent the outflow of fuel. If desired, a hollow plastics ball 52 may also be provided to act as an additional shut-off element. <IMAGE>
Patent GB-2012832-A (GB)
Title: Process for the Production of Asbestos-Free Building Board by the Take-Up Method
IPC: C04B18/24
Filed: 1979-01-19
Abstract: Asbestos can be successfully replaced by cellulosic fibres in the production of asbestos-free building board by the take-up method provided that the cellulosic fibres used in the wet pulp have been beaten to a degree of 30 to 70 DEG  Shopper Riegler 3 to 30% and are used in a proportion of the total dry weight of the pulp.
Patent GB-2051598-A (GB)
Title: Apparatus for dewatering sludges
IPC: B01D33/04
Filed: 1979-05-17
Abstract: Apparatus for dewatering fine fragile sludges comprises a pair of filter belts (1, 2) which are caused to follow a curved path of reducing radius so that the sludge while carried between the two belts is subjected to a gradual and continual increase in pressure. The curved path is preferably defined by a portion of a cornu spiral. The belts are constrained to follow the curved path by bringing the upper belt into direct or indirect contact with an apertured curved, guide plate (13). The plate may be coated with a lubricious material or roller bearings may be provided between the belt and the plate. <IMAGE>
Patent GB-2052851-A (GB)
Title: Piezo-electric assembly
IPC: H01L41/113
Filed: 1979-05-22
Abstract: A piezo-electric assembly has at least one piezo-electric element 3, 4 associated at one end with an electrode 5 which has at least a portion which is outside the axial projection of the element 3, 4, and contained in an insulating casing. In one aspect, the casing has two parts 1, 2 which abut either side of the electrode 5. In another aspect, the electrode 5 is substantially annular and surrounds the element 3, 4, being separated from the end portion of the element 3, 4 by an air gap. The outer and inner casing parts 1, 2 define therebetween a channel 12 to contain a lead 7 connected to the electrode 5. <IMAGE>
Patent GB-2051008-A (GB)
Title: Stackable containers
IPC: B65D21/02
Filed: 1979-06-23
Abstract: An open-topped, stackable container moulded in polypropylene has external vertical corner ribs 8 and intermediate ribs 9, any horizontal ribs or flanges 11 being confined to near the open top of the container to simplify moulding. The bottom 5 is perforate and has depending locating formations 17 gapped to allow the crates to be stacked one on another in overlapping and interlocking relation. Hand grip holes 15 are provided and an integral band 11 surrounds the top flush with the ribs 8 and 9. <IMAGE>
Patent GB-2030578-A (GB)
Title: Process for preparing water-in-oil emulsions of water-soluble polymers
IPC: C08F2/00
Filed: 1979-08-13
Abstract: The invention provides a process for preparing water-in-oil emulsions of water-soluble nonionic or anionic polymers wherein a water soluble monomer is polymerized in the dispersed phase of a water-in-oil emulsion in the presence of a water-soluble, oil-insoluble salt. The presence of the salt in the aqueous monomer phase leads to reduced coagulum formation.
Patent GB-2033527-A (GB)
Title: Retaining devices
IPC: A01G9/12
Filed: 1979-09-26
Abstract: A retaining device particularly for use as a beanstick coupling device comprising a planar portion (9) having a plurality of bores (10, 11) formed therein to accommodate a respective number of rod-like members (2,3) such as beansticks, and having a lug (12) extending substantially normally to the plane of the planar portion (9) with at least one bore (13) formed therein to accommodate one or more rod-like members (1) extending substantially normally to the other rod-like members. A terminal retaining member and an intermediate retaining member are described, the terminal member (8) having three angled bores (15, 16, 17) in the planar portion and one bore (19) in the lug (18) to couple together two beansticks (5, 6) in a pair of spaced rows of beansticks, with an end beanstick (7) located intermediate the rows and a horizontal (1) extending between the rows. The intermediate retainer (4) merely couples together a pair of bean- sticks (2, 3) of adjacent rows with a horizontal beanstick (1) extending between the rows. <IMAGE>
Patent GB-2033331-A (GB)
Title: Tray unloading and unstacking apparatus
IPC: B65B23/06
Filed: 1979-09-28
Abstract: Apparatus for unloading and unstacking a plurality of trays (4) filled with articles, such as eggs or tomatoes, and supplied by means of a conveyor (1), comprises a lifting table (6) mounted on a shaft (20) that is both rotatable and movable upwardly and downwardly, means (36, 37) for gripping and unloading the articles and means (41-43) for gripping and unstacking the trays. A pushing plate (5) is provided for sliding a stack from the supply conveyor (1) to the lifting table (6), and the means for gripping and unloading the articles and the means for gripping and stacking the trays are arranged on opposite sides of the lifting table. Preferably, a plurality of lifting tables (6) are arranged laterally of the supply conveyor and are controlled by a photo-electric sensor so that successive uppermost trays of the stacks are moved upwardly to the same positions relative to the article unloading and tray unstacking means. <IMAGE>
Patent GB-2046134-A (GB)
Title: Development of Electrostatic Images
IPC: G03G15/10
Filed: 1979-11-13
Abstract: Developing an electrostatic latent image by disposing said image 114 close to but out of contact with a surface of a liquid developer 106 at a development zone. At the development zone the electric image field at or approaching the zone, with or without the assistance of an external electric field, segmentally raises closely spaced tiny amorphous (individually non-image-defining) pseudopods 122 from the liquid developer surface 106 toward the surface of the image 114. The pseudopods and/or droplets separated therefrom are then transferred to the image. The liq. developer may be supplied by a roller or by capillary transfer. <IMAGE>
Patent GB-2037855-A (GB)
Title: Sliding Door Gear
IPC: E05D15/06
Filed: 1979-11-21
Abstract: A sliding door assembly wherein a door 10 is suspended from an overhead track for linear sliding movement in a vertical plane. The track takes the form of a horizontal shaft (14) secured to the fixed structure 13 above the door opening and the bearings which are mounted on the upper edge of the door comprise, for each one, a bearing block (18) in which is housed a bearing (19) of the recirculating ball- type. The shaft (14) is supported from a support rail (1 5) by bolts (16) which pass through gaps (24) in the bearings to allow these to slide along the shaft. <IMAGE>
Patent GB-2063041-A (GB)
Title: Livestock feeding appliances
IPC: A01K5/02
Filed: 1979-11-21
Abstract: In a livestock feeding appliance, for example for supplying food to a row of battery cages, in which a food hopper travels along a trough, the trough has a channel 7 in its base wall 6 extending longitudinally of the trough and the hopper discharges food only into the channel. This enables the amount of food supplied to the trough to be closely controlled so as to minimise food wastage. The level to which food is received into the channel is determined by a slide or shutter at the trailing end of the hopper outlet 15. A brush 30, or scraper, mounted on the hopper in advance of the outlet 15 sweeps along the base wall 6 at opposite sides of the channel and returns to the channel any food scattered on the base wall by the livestock during feeding. <IMAGE>
Patent GB-2044792-A (GB)
Title: Synthetic hydrocarbons, particularly suitable as dielectric insulating fluids
IPC: H01B3/22
Filed: 1980-02-04
Abstract: Hydrocarbons particularly adapted to be used as dielectric insulating fluids, are characterized by the following general formula:  [(R)n-Ar-]q-(R')m wherein Ar is a benzene ring or a diphenyl system; R is H, CH3 or C2H5, isopropyl or the higher homologues up to C9, equal or different in the case that the number of such R group is >1; n and m integers, equal or different, and in the range from 1 to 5 inclusive; and q is an integer from 1 to 4, R' is a cycloaliphatic radical, and is preferably cyclohexane and cyclopentane. The invention also regards a process for preparing the above-identified compounds which comprises a Friedel-Craft's alkylating reaction on a benzene ring, introducing by means of this alkylating reaction one or more cycloaliphatic radicals into the aromatic system.
Patent GB-2051476-A (GB)
Title: Field effect transistor devices
IPC: H01L29/808
Filed: 1980-04-21
Abstract: A field effect transistor device (10) is constituted by a semi-insulating substrate (11) consisting of a compound semiconductor, a semiconductor layer (12) formed on the substrate, a plurality of semiconductor gate regions (17a to 17d), of a conductivity type different from that of the layer (12), extending through the semiconductor layer (12) to reach the substrate (11), source and drain electrodes (13 and 14) disposed on the semiconductor layer (12) on opposite sides of the drain regions, and a gate electrode (17) connected to said gate regions but insulated from the surface of the semiconductor layer (12). Two gate regions (17a and 17d) at opposite ends of the array may be in contact with the boundary region of the transistor. <IMAGE>
Patent GB-2050628-A (GB)
Title: Flat Type Thin Film Oxygen Sensor
IPC: G01N27/28
Filed: 1980-05-27
Abstract: A flat type thin film oxygen sensor comprises a layer (28) of an oxygen ion conductive solid electrolyte, a porous and electronically conductive reference electrode layer (26) formed on one side of the electrolyte layer, a porous and electronically conductive measurement electrode layer (30) formed on the other side of the electrolyte layer, and a partition layer (24) of an electrochemically inactive material formed on the outer side of the reference electrode layer. The reference and measurement electrode layers are constructed of cermet materials. At least one of the solid electrolyte layer 28 and partition layer 24 is permeable to fluids and the reference layer communicates with the external atmosphere only through the permeable layer(s). Either the solid electrolyte layer of the partition layer functions as the structural base layer of the sensor. The partition layer may incorporate a heater. <IMAGE>
Patent GB-2078080-A (GB)
Title: Additive composition for animal feedingstuff
IPC: A23K50/15
Filed: 1980-06-20
Abstract: A composition for the treatment of protein and carbohydrate containing animal feedingstuffs e.g. cereals in the form of an aqueous solution contains in weight percent of the total weight:- Sulphite waste liquid or lignone sulphonate           5 to 1 formaldehyde (HCHO)                                   9 to 2 one or more organic acids                            30 to 6   The feedingstuff may be treated in the moist state (moisture content 15-85%) by admixture with the composite of the invention which is effective to improve the preservation of the feedingstuff and reduce the degree of breakdown of the feedingstuff in the rumen of the animal. The acid may be C1-6 aliphatic carboxylic acid and the composition may further comprise urea, methanol or utropine as a stabiliser.
Patent GB-2079190-A (GB)
Title: Particle Separating Apparatus
IPC: B04C3/06
Filed: 1980-07-07
Abstract: A particle separating apparatus has a lower portion 1 connected to an intermediate portion 2 which in turn is connected to an upper portion 3. The lower portion is in the form of a downwardly convergent conical hopper having an outlet 4 for separated particles. The intermediate portion is substantially cylindrical and has a gas inlet 5 positioned so that the incoming gas is caused to revolve or spiral within the intermediate portion. The upper portion has a top wall 7 spaced from the gas inlet 5 through which a coaxial gas discharge pipe 6 extends. Two diametrically opposed outwardly extending material trapping chambers 8 are positioned adjacent the top wall 7 communicating with the interior of the upper portion and trap those particles which are carried upwardly by the gas spiralling upwards from the inlet 5 to the discharge 6. A number of such an apparatus may be connected in series and serve as heaters in which cement or alumina raw materials are preheated by exhaust gases discharged from a rotary kiln. <IMAGE>
Patent GB-2066190-A (GB)
Title: Propeller using Magnus Effect
IPC: B63H1/12
Filed: 1980-07-11
Abstract: A propeller for motor powered water vessels, particularly on tugs and other work ships, requiring a high degree of thrust power, and employing a lifting action through rotating members (5) on the propeller (3, 4) employing the "Magnus Effect" to provide increased power. <IMAGE>
Patent GB-2084207-A (GB)
Title: Dural flush valve discharge unit for WC cisterns
IPC: E03D1/14
Filed: 1980-09-23
Abstract: A cistern discharge pipe 72 has a lift valve 7 linked by a cord 6 to a handle-actuated arm (arm 5, Fig. 1 not shown), the valve 7 being thereby selectively lifted to engage first or second detents 84,95 on respective arms 8,9 of upper and lower floats 83,91. For a partial flush valve 7 is lifted to rest on detent 84, so that it is automatically closed when the cistern level drops below float 83, for a full flush the valve 7 is initially raised past detent 84 to rest on detent 95 of the lower float arm. Selection of a full or partial flush is achieved by turning the flush handle (handle 1, Fig. 1 not shown) respectively clockwise or anti- clockwise so causing crank arm groove (32) of the handle shaft (3) to engage the cord-actuating arm (5) at different distances from its pivot (50) and thereby lift the arm (5) through a large or small angle. <IMAGE>
Patent GB-2056096-A (GB)
Title: A method and device for measuring the reception quality of a frequency-modulated VHF signal
IPC: H04B17/309
Filed: 1978-10-25
Abstract: There is proposed a simple possibility of assessing the quality of the VHF stereophonic reception in an oscillogram. The amplitude of the VHF signal carrier is adjusted to a constant value and simultaneously the interfering amplitude modulated upon the VHF signal carrier is left unaffected. By this means, the reference axis formed by the carrier amplitude is retained in the oscillogram during the entire measuring operation.