baber/WOPTO huggingface dataset:
Patent GB-1019849-A (GB)
Title: Method of manufacturing semiconductor devices
Inventor: DUNSTER DAVE FRANCIS THOMAS
IPC: H01L21/00
Filed: 1963-12-24
Abstract: 1,019,849. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Dec. 24, 1963, No. 50882/63. Heading H1K. A planar semi-conductor device is produced by forming a junction using an oxide diffusionmask and then forming a fresh layer of oxide beneath the mask. This fresh layer of oxide is less contaminated than the layer used as the diffusion-mask. As shown, a wafer 1 of N-type silicon has a layer 2 of silicon oxide formed on its surface by heating in steam or oxygen, or by the pyrolytic decomposition of a compound containing silicon and oxygen. A window 3 is photo-resist etched through the oxide layer and an acceptor impurity, preferably combined with silicon, is applied to the exposed surface, and the wafer is then heated in an oxidizing atmosphere. The impurity first alloys with, and then diffuses into, the wafer 1 to form P-type region 5, and the exposed surface of the wafer is simultaneously reoxidized. The wafer is then heated in an oxidizing atmosphere to a temperature below that used for the diffusion to form a fresh layer of oxide 7 below the oxide mask 2. A window 10 is then etched in both oxide layers 2, 7, and ohmic contacts 8, 9 and leads 11, 12 are applied to form a diode. A transistor can be manufactured by diffusing an N-type emitter region into the P-type diffused region, which forms the base region, before forming the fresh layer of oxide. A plurality of devices of either type may be simultaneously produced in a single wafer which is then divided up to form individual units.
Patent GB-1416177-A (GB)
Title: Inspection of code-marked articles
IPC: B07C5/12
Filed: 1972-11-08
Abstract: 1416177 Code marked article reader EUROPEAN LABELLING MACHINE SYSTEMS Ltd 27 Sept 1973 [8 Nov 1972] 51467/72 Heading G4M Articles such as pharmaceutical containers 10 carrying a label or having their own coded marking are carried on a conveyer 11 towards a turntable 17. A bar code marking of different colours may be used and the label may have alpha numeric printing. The container is received in a recess, operates a switch 25 and is moved to a position where the container is pressed by a roller 21 on an arm 20 against rollers 19 in the recess. The arm 20 carries an optical scanner and the bottle is rotated so that the code is read. If a correct code is read a gate 24 is retracted and the articles are carried away by the container. If an incorrect or invalid code is read the gate causes the articles to be ejected at position 4. The label may be marked to indicate it has been checked.
Patent GB-1110831-A (GB)
Title: Flow meter monitoring of a system of mine roof supports
Inventor: KIBBLE JOHN DUNBAR
IPC: E21D23/20
Filed: 1964-12-22
Abstract: 1,110,831. Advancing hydraulic mine roof supports. COAL INDUSTRY (PATENTS) Ltd. Dec.17, 1965 [Dec.22, 1964, No. 52029/64. Heading F1P. The main hydraulic supply line 9, Fig.1, of a plurality of sequentially advanced mine roof supports 1 - 5 each comprising props 1a - 5a, rams 1b 5b and control valves 1c - 5c includes an electric flowmeter 11 connected to a remote flow-rate indicator 14, Fig. 2, and through an integrating unit 17 to a total flow indicator 18 and which are actuated on pushing a switch button 15 to energize a solenoid valve 1d of the first support 1 and initiate the cycle. The end unit 5 has transducer 5e, 5f connected to indicators 19, 20 respectively for measuring the advance of ram 5b and the pressure in prop 5a.
Patent GB-1480758-A (GB)
Title: Expansion bearing assembly for a converter carrying trunnion
IPC: F16C13/02
Filed: 1974-12-02
Abstract: 1480758 Bearings VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKEALPINE MONTAN AG 2 Dec 1974 [7 Dec 1973] 52113/74 Heading F2A [Also in Division F4] A bearing 11 for the trunnion 4 of a steel converter is mounted in a bushing 12 which is axially displaceable with respect to a housing 14; cylindrical blocks 21 acting as sliding elements are inserted into radially-extending bores in the bushing 12. The blocks may be distributed over substantially 90 degrees of the periphery of the bushing in the main pressure zone, with additional blocks located near the horizontal plane. The blocks may be of PTFE with bronze sleeves. There may be springs 13 between the bushing and the top part of the housing. The bearing 11 can be a plain or a rolling bearing. In a further embodiment, there is an additional sleeve between the bushing and the housing.
Patent GB-1334110-A (GB)
Title: Inspection covers
IPC: E02D29/14
Filed: 1971-11-10
Abstract: 1334110 Manhole covers SELFLOCK Ltd 16 Feb 1972 [10 Nov 1971] 52270/71 Heading E1G In a manhole or inspection cover and frame assembly at least one pair of corresponding sides of the cover 1 and frame 10 are of identical angle section (e.g. from the same stock), one limb of the angle section having at least one undulation 5, 15. The rectangular cover described comprises an opposed pair of mild steel angle section boundary walls 2 secured - e.g. welded - to two opposed flat walls 6. The space within the cover walls may be filled with reinforcing bars, concrete or tiles. Alternatively the angle section may be of cast iron or plastics. As shown the angle section walls 2, 12 of the cover and frame are mutually reversed, a sealing strip 17 being bonded to the frame.
Patent GB-1454949-A (GB)
Title: Shock absorber for towing hooks
IPC: B63B21/58
Filed: 1974-12-03
Abstract: 1454949 Stress limiting devices WESER AG 3 Dec 1974 [4 Dec 1973] 52296/74 Heading B8B [Also in Division B7] To absorb shock forces, a tugs towing gear includes a hook saddle 3 pivotally connected to a bifurcated coupling member 5 whose two arms contain springs of steel or plastics material which abut against the two ends of a transverse pin joining a towing arm 7 to the member 5 and the free ends of the arms of the coupling member 5. The coupling member 5 is supported on an arcuate guide track 11.
Patent GB-1172079-A (GB)
Title: Improvements in or relating to Binding Machines for Encircling Articles with one or more Bonds
IPC: B65B27/10
Filed: 1966-11-23
Abstract: 1,172,079. Binding machines. ETABS R. SENARD & FILS. 23 Nov., 1966 [23 Nov., 1965], No. 52515/66. Heading B8C. An arm 22 by which a tie is carried (olookwise in Fig. 1) around an article positioned at 21 is carried by a crank-shaft 20 mounted at opposite ends 17, 19 in parallelogram linkages 3, 15, 5 and 2, 14, 4, with the cranks 2, 3 of the linkages set at an angle to one another so that the shaft 20 and arm 22 rotate bodily about the point 21. In the form shown the tie is pulled from a supply through straightening rollers by rollers 25, 26 carried on the arm 22. Before the arm 22 starts to move the free end of the tie is carried anticlockwise from a position adjacent the pulley 25 to a position below and to the right of the axis 21 (Fig. 1) by a gripper (A), (Fig. 4, not shown), carried by a further parallelogram linkage. After the tie has been carried around the article by the rollers 25, 26 it is gripped and cut by members (49), (51), (Fig. 7, not shown), so that the rollers 25, 26 can be returned to their initial positions. The ends of the tie are then gripped and twisted by members (63), (64), (Fig. 14, not shown) and pressed against the underside of the bound article by a lever (68), (Fig. 9, not shown). The machine is described as tying a stack of angle irons pressed down on supports by a pivoting arm (28), (Fig. 3, not shown). The tie material is tensioned by a device comprising a free drum and a roller carried by a spring-biased arm (34).
Patent GB-1175374-A (GB)
Title: Photoelectrophoretic Imaging Process.
IPC: G03G5/12
Filed: 1966-11-24
Abstract: 1,175,374. Electro-phoretic imaging processes. XEROX CORP. Nov. 24, 1966 [Nov. 30, 1965], No. 52610/66. Heading G2H. A method of electro-phoretically imaging comprises the steps of providing a dry layer of electrically photo-sensitive particles, applying an insulating carrier layer to the layer, applying an electric field between two electrodes one of which is transparent, and imagewise exposing the layer to activating radiation to form an image. In one embodiment, a transparent injecting electrode 1, e.g., of glass coated with a thin layer 3 of tin oxide carries a sheet 4 comprising a conductive substrate 5 and a dry layer of photosensitive particles in a wax binder soluble in the carrier liquid. A blocking electrode 7 having a conductive core 13 is covered with an insulating layer such as Baryta paper. A nozzle 15 supplies insulating carrier liquid to form a suspension of pigment particles which is then imagewise exposed to a transparency simultaneously with the application of an electric field. Pigment particles migrate to the electrode 7 leaving behind a visible image of transparency 11 on substrate 5. The carrier liquid is evaporated off, such that the wax binder fixes the image to the substrate. Additionally, a lacquer coating or a transparent sheet may be applied to the image. The sheet 4 may be applied to the electrode 7 instead of electrode 1. In another embodiment, Fig. 2 (not shown) a capsule (17) contains the insulating carrier liquid. The capsule ruptures on contact with electrode (7) which then spreads the carrier liquid across the pigment area. Examples of suitable carrier liquids are Sohio Odourless Solvent 3440, Isopar G (Registered Trade Mark) decane, dodecane, N-tetradecane, silicone oils, petroleum ethers, paraffin oils and mixtures thereof. Examples of pigments include (Example 1) a tri-mix comprising equal amounts of a cyan pigment, Vulcan Fast Red BBE toner and Indofast Yellow toner dispersed in Sohio Odourless Solvent before application to substrate 5 for producing a multi-colour image.
Patent GB-1473304-A (GB)
Title: Manufacture of multi-layer structures
IPC: G03F9/00
Filed: 1974-05-02
Abstract: 1473304 Registered multi-layer printing NIPPON KOGAKU KK 2 May 1974 [3 May 1973] 52826/76 Divided out of 1473301 Heading G2A The subject-matter is contained in the Parent Specification but the claims are concerned with apparatus comprising retractable masking elements which are movable into masking positions above the fiducial marks on the substrate to prevent exposure of the substrate in the vicinity of the fiducial marks when the substrate is exposed. The elements may be small plates carried by sliding supports mounted in precision ball bushings.
Patent GB-1166635-A (GB)
Title: Multilayer Floor Coverings and a Process for their Manufacture
IPC: D06N3/06
Filed: 1966-11-28
Abstract: 1,166,635. Laminates. ZAKLAD BADAN I DOSWIADCZEN WROCLAWSKIEGO ZJEDNOCZENIA BUDOWNICTWA & DOLNOSLASKIE ZAKLADY TWORZYW SZTUCZNYCH. 28 Nov., 1966 [26 Nov., 1965], No. 53102/66. Heading B5N. A laminated floor covering comprises a polyvinylchloride foil and a resilient layer formed from comminuted rubber and from polyvinyl chloride with phthalate plasticizers. This material is suitably formed by rolling the comminuted rubber, polyvinyl chloride and plasticizer into a sheet at 120‹ to 180‹ C., and bonding this to the polyvinyl chloride foil either by welding at 120‹ to 180‹ C. or using adhesives. A suitable composition for the resilient layer is 40% comminuted rubber waste, 40% polyvinyl chloride and 20% a mixture of diethyl and dibutyl phthalates.
Patent GB-1521070-A (GB)
Title: Toilet flush tanks
IPC: E03D1/012
Filed: 1975-12-31
Abstract: 1521070 Flushing cisterns GEBERIT AG 31 Dec 1975 [10 Jan 1975] 53331/75 Heading E1C In a flushing cistern comprising a tank 1, cover 2 and float-controlled inlet valve 4, wherein a discharge valve (not shown) is opened by raising a central tube 7 by means of a lever 9 pivoted at 10, the lever 9 is actuated by depressing a spring-loaded plate 13 pivotally mounted flush in the cover 2, the plate 13 bearing against the upper lever arm 9b. As shown the plate 13 is pivoted at 14 in a recess 12 of the cover, is loaded by a leaf spring 15, and is L-shaped to lie flush with the top and side walls of the cover 2. The tube 7 also acts as an overflow.
Patent GB-1081049-A (GB)
Title: An improved fastening device for shoe or boot laces
IPC: A43C7/00
Filed: 1965-12-20
Abstract: 1,081,049. Lace fastenings. H. CLASEN. Dec. 20, 1965 [Jan. 27, 1965], No. 53886/65. Heading A3H. A lace holder comprises a centrally apertured circular disc the edge of which is recessed as shown to allow the lace ends threaded through the central aperture to be threaded in and out of the recesses. The disc may be double convex in shape. The disc may also have surface projections the outer edges of which are recessed to retain the lace.
Patent GB-1281820-A (GB)
Title: Process of manufacturing polyethylene
IPC: C08F10/00
Filed: 1970-11-12
Abstract: 1281820 Polymerizing ethylene SOC ITALIANA RESINE SpA 12 Nov 1970 [23 Dec 1969] 53986/70 Heading C3P In the catalytic polymerization of ethylene at 150‹ to 350‹ C. and above 500 kg./sq. cm. in tubular reactors having a length/diameter ratio in excess of 250/1 and to which polymerization initiator is supplied at one or more points, the reaction temperature is controlled by introducing a stream of cold ethylene by hydraulic means comprising at least one hydraulic power transformer, into zones of the reactor downstream of the point or points of entry of polymerization initiator in which the temperature attains a level above 250‹ C., said means being controlled by a temperature recording controller as a function of the levels of temperature measured in zones of the reactor immediately downstream of the inlet of the said cold ethylene stream. Organic peroxides and oxygen may be used as intitators, and may be introduced at the inlet end of the reactor and optionally at a plurality of locations along the body of the reactor.
Patent GB-1301082-A (GB)
Title: Specific gravity and refractive index measurements
Inventor: EVANS DENNIS VINCENT
IPC: H01M50/569
Filed: 1968-11-14
Abstract: 1301082 Measuring refractive index photo-electrically; measuring state of charge of a battery RICHMOND ELECTRONICS (MARKYATE) Ltd 13 Feb 1970 [14 Nov 1968] 54169/68 Headings G1A and G1U [Also in Divisions G2 and G4] The refractive index of a fluid is measured, in order to determine the specific gravity thereof, by means of a probe comprising a translucent block 1, means 4 for directing light towards a surface 2 of the block which forms an interface with the fluid, and means for receiving light distributed along a line 6 reached by the light after internal reflection at the interface, the extent of illumination along the line being dependent on the refractive index of the fluid. The probe may monitor flowing fluids or designed for use in testing inaccessible fluids, for example, in a battery, the state of charge of which is to be checked by determination of the specific gravity, Fig. 4. The light source which may be a permanent emitter of the type employing a beta source and which may be monochromatic may be mounted at one corner of block 1, which may be of plastics or glass, a shield member 5 being provided internally of the block, to prevent light passing direct to detection  surface 6. One or more photo-cells or photodiodes may be mounted adjacent face 6 to provide an analog or digital measure of the illuminated part y of face 6. Alternatively, Fig. 2 (not shown), light may be conducted to the corner by a fibre optic guide (7) and a row (8) of fibres be mounted at face 6, these being associated with an equal number of photo-cells at a remote location for digital measurement or with a single photo-cell sensing the total intensity issuing from the fibres of Y. A single fibre or cluster of fibres may be used to determine refractive index changes in a very narrow range and may be associated with a further single fibre to sense the direction of change. In an alternative form of block, Fig. 3 (not shown) face 6 is at an obtuse angle to the interface, for greater sensitivity. Circuit Fig. 5 for a multi-cell battery monitor, has probes for each cell of the battery producing refractive index and temperature indications. Various summing circuits and a comparator are used to produce a temperature compensated measure of mean charge which is indicated and/ or used to control charging.
Patent GB-1160040-A (GB)
Title: Electric Mill such as a Coffee Grinder
IPC: A47J42/26
Filed: 1967-11-29
Abstract: 1,160,040. Coffee mills. SOC. MOULINEX. 29 Nov., 1967 [2 Dec., 1966], No. 54349/67. Heading B2A. An electrically-operated coffee-mill comprises a case 10, Fig. 1, a bowl 14, and a grinding tool 16 driven by a motor 18 which is suspended from a horizontal element 12 by a plastics plate 22 surrounding the motor spindle 20. The plate 22 has two downwardlydirected pegs 24, each resiliently-engaged in a hole 26 in a top flange 28 of the motor 18. Each has a lateral projection 30 on which the rim of the hole 26 is hooked. Each peg is in two parts 32, 34 separated by a vertical slot 36 Fig. 2. One part 32 has a hook and the other 34 forms a guide bearing on an area of the rim opposite the hooking area. The plate 22 and element 12 are screwed at 38.
Patent GB-1305538-A (GB)
IPC: B60B39/00
Filed: 1971-11-25
Abstract: 1305538 Controlling vehicles GENERAL MOTORS CORP 25 Nov 1971 [23 Dec 1970] 54735/71 Heading B7H [Also in Division Fl] A motor vehicle has provision for limiting excessive wheel slip during acceleration, by the use of a mechanical differential having input gears 14, 16 driven in accordance with the speeds of a non-driven and driven vehicle wheel respectively and the input gears drive a carriermounted planet gear 26 so that a carrier 30 rotates at a speed proportional to wheel slip and switch means operated in accordance with the carrier speed is connected for limiting the output torque of the vehicle engine. The switch means may include a contact 38 carried by the input gear 16 and having a conductive starshaped element 40 electrically connected to the shaft 20 and surrounded by insulating material 42 Fig. 2. The carrier 20 slidably and rotatably supports a rod 46 having a mass 48 and a contact wheel 50 biased radially inwardly by spring 52 engages the switch contact 38. Sleeves 24, 36 and the various gears are made of polyamide plastics material to electrically isolate the carrier 30 from the shaft 20. In the event of excessive wheel slip the carrier 30 is caused to rotate at a rate proportional to the wheel speed difference and after a predetermined speed of the carrier the contact wheel 50, due to the centrifugal force, will move from a position in which it is in constant electrical contact with the circular portion of the element 40 into a position in which it contacts only the finger portions whereby the engagement of the switch elements is periodically interrupted by insulating material 42 to effect a periodic interruption of the ignition circuit, so reducing engine output torque. The switch contact 38, may alternatively be mounted on the wall of the stationary housing 12. Further, the switch may be operated to control engine torque via the throttle position.
Patent GB-1144186-A (GB)
Title: Improvements in scanning circuits for cathode-ray tubes
IPC: H03K6/04
Filed: 1966-12-08
Abstract: 1,144,186. Transistor sawtooth circuits. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 8 Dec., 1966 [8 Dec., 1965], No. 55077/66. Heading H3T. A field deflection circuit for a television receiver comprises a unijunction transistor oscillator coupled via a capacitive divider to an output transistor. As shown, the series capacitors C2 ... C4 charge via resistor R2 during each scan until unijunction transistor T1 breaks down, discharging the capacitors. The capacitors form a lower impedance drive to the output transistor T2. Feed back via resistor R3 to the junction of capacitors C3, C4, together with the effect of the finite time constant of the inductor L provides an S-shaped deflection current in the coils L2 as required for flat screen correction. Resistors R3, R5 respectively control linearity and amplitude. The circuit may be synchronized at A. Fig. 1 (not shown) relates to a known circuit in which capacitor C2 is omitted and an emitter follower interposed between point D and the base of transistor T2.
Patent GB-1486247-A (GB)
Title: Drives for use in secondary storage facilities for digital data processing systems and secondary storage facilities and digital data processing systems embodying such drives
IPC: G06F3/06
Filed: 1974-12-20
Abstract: 1486247 Secondary storage facilities DIGITAL EQUIPMENT CORP 20 Dec 1974 [10 Jan 1974] 55269/74 Heading G4A The disclosure is identical to that of Specification 1,486,248, but the claims relate to a drive connectible to a controller to form a secondary storage facility in a digital data processing system, and to a secondary storage facility incorporating such a drive. The controller is claimed in Specification 1,486,249. These Specifications are referred to.
Patent GB-1117190-A (GB)
Title: Improvements in or relating to sharpening devices for rotary knives
IPC: B24B3/40
Filed: 1966-12-12
Abstract: 1,117,190. Grinding. L. A. BETTCHER. 12 Dec., 1966 [13 Dec., 1965], No. 55647/66. Heading B3D. A sharpening device for ring-like knife blades B comprises knife holder means 12 supported on a base structure 10 for movement to and from a knife sharpening position, blade grinding means 13 including a rotating grinder wheel 14, and means to reciprocate the blade grinding means along a given line for moving the grinding wheel along a surface of a blade of a knife supported in the holder. The blade consists of an annulus having a cylindrical inner surface and an outer bevelled surface to form a cutting edge. The blade grinding means consists of a wheel 14 driven by an electric motor 70 on a plate 72 which is slidable on the base structure and guided for straight line motion in a direction parallel to the axis of the wheel 14 by bolts extending from the plate through slots in the base structure. A lever 84 is manually movable about a pivot 85 and has a slot engaging a pin 87 on the plate for effecting movement of the sharpening means. The knife holder means has a base 30 formed at one end with a wall 31 having a clamp 34 for the handle K of the knife blade. A post 32 extends upwardly from the other end of the base for receiving the supporting and driving structure R for the blade. The blade is located by a pair of pins 50 on the post and is urged against the pins by a spring 52 mounted on a head 45. A diamond dressing tool 15 is also carried by the head which is rotatable on the post by a handle 47 to engage the spring 52 with the blade during a sharpening operation or to position the tool 15 for a dressing operation, the grinding wheel being reciprocated by the handle for either operation. During sharpening, the blade is rotated by a flexible drive cable 96. The holder means is slidable on the base structure and guided for adjustment movement by a screw 65 by bolts which extend from the holder through slots in the base structure.
Patent GB-1378386-A (GB)
Title: Methods in the production of plant-mixed asphalt mixes for paving purposes
IPC: E01C7/18
Filed: 1971-11-30
Abstract: 1378386 Asphalt mix K G OHLSON 30 Nov 1971 [2 Dec 1970] 55649/71 Heading C3N A method for the production of a plant-mixed asphalt mix for pairing purposes of the kind in which both mineral aggregate and bituminous binder are heated and then mixed in heated state in a mixer, comprises dividing the dried and heated mineral aggregate into a substantially dust-free coarse portion and a dust-containing fine portion which consists substantially of all those particles of the mineral aggregate that have a size of 2 mm. and smaller, admixing the coarse portion in the mixer with all the binder required for the mix, all surfaces of the particles of the coarse portion being coated with a film of the binder, and then introducing the fine portion into the mixer and encapsulating it in the binder film on the surfaces of the asphaltcoated particles of the coarse portion. Filler comprising particles having a size less than 0À09 mm. may be introduced into the mixer with the fine portion. The mineral aggregate of the specific example consists of 75À4% crushed (2-12 mm.), 18À8% sand (0À09-2 mm.) and 5À8% filler (0-0À09 mm.).