baber/WOPTO huggingface dataset:
Patent GB-1369986-A (GB)
Title: Superstructure for a boat
IPC: B63B29/02
Filed: 1971-10-21
Abstract: 1369986 Boat superstructures T HARKER 21 Oct 1971 [23 Oct 1970] 50459/70 Heading B7S A hatch 18 covers an access opening in a laterally stepped portion 16 of a boat superstructure. The provision of the opening at the stepped portion allows the major part of the superstructure to occupy the full width of the boat's hull. The hatch 18 is arranged to be slidable upwardly and pivotable about the upper edge 20 of the stepped portion to a position in which it rests on the roof 22 of the superstructure.
Patent GB-1416692-A (GB)
Title: Method and apparatus for use in timing internal combustion  engines
IPC: F02P17/02
Filed: 1972-11-02
Abstract: 1416692 Timing I C engines D G BRAY 31 Oct 1973 [2 Nov 1972] 50500/72 Heading GIU In a timing test on a magneto ignition system, the output leads F1, F2 of a battery-powered oscillator O are connected across the coil output and changes in oscillator frequency, due to the opening and closing of the points gap P affecting the oscillator loading, are indicated by a loudspeaker LS or other means (e.g. a meter). The oscillator may be of audio frequency or higher, in the latter case frequency changing or discrimination taking place before indication.
Patent GB-1525136-A (GB)
Title: Method of making a piezoelectric device having a piezo-electric polymer film supported across a frame
IPC: H01L41/45
Filed: 1975-12-11
Abstract: 1525136 Piezoelectric polymer devices KUREHA KAGAKU KOGYO KK 11 Dec 1975 [13 Dec 1974] 50734/75 Heading H4J A polymer film 1, having electrodes 2, 2' on its two sides has one electrode 2' closely contacted with a base film 3 thicker than the polymer film 1 to form a laminated body. A frame 4 is adhered to the exposed surface of the other electrode 2. The base film 3 is then removed to produce a framed piezoelectric polymer film, free of wrinkles or limp regions, and suitable for use as a diaphragm for headphones, speakers or other electro-acoustic diaphragms. The polymer film 1 is preferably of a polyvinylidene fluoride or polyvinyl fluoride and is polarized under a D.C. field. The base film, of thickness not more than 300 microns is preferably of polyvinylidene fluoride, polyvinyl fluoride, polyvinyl chloride, a polyester or polypropylene. The two films may be closely contacted with each other by moistening one or both contacting surfaces with water or oil or by electrostatical attraction. After closely contacting them any air trapped between them can be removed by pressing with a roller, preferably in a vacuum. Polymer film 1 and base film 3, on separate bobbins (6, 7) Fig. 4 (not shown) may be passed between pressure rollers (8, 9), the resultant laminate (B) being taken up by a bobbin (10). The pressure rollers may be omitted, the two films being pressure contacted by winding the films 1, 3 under tension on the take-up bobbin (10). The laminating process may be performed prior to polarization of the polymer film 1 and also prior to metallization of one side of the polymer film 1. The polymer film 1, metallized on both sides and wound on a bobbin, may be polarized in the wound state using the metallization as electrodes.
Patent GB-1534520-A (GB)
Title: Collection device
IPC: E21C50/02
Filed: 1975-12-11
Abstract: 1534520 Dredgers INCO EUROPE Ltd 11 Dec 1975 [11 Dec 1974] 50738/75 Heading E1F  A suction dredger comprises a chamber 20 having a solid material entrance 24, a water entrance 23, an exit port 26 connected to a conveyance duct 18, and a throat portion 25. The cross-sectional area of the duct 18 is greater than that of the entrance 24, less than that of the entrance 23, and substantially equal to that of the exit port 26 and the throat portion 25. The chamber is mounted on a framework 11 having runners 12, a bumper 14 and an over-rider 13, the bumper having an indentation 16 to provide a passage 17. In use the framework is moved along the bed 15 and solids pass through the passage 17 and the entrance 24 into the chamber 20 where they are entrained in a flow of water and pass out through the port 26 to the duct 18. The flow of water is induced by suction from the duct 18 and enters the chamber 20 through the entrance 23. Water relatively free from solids may be drawn into the duct 18 from an elevated water gate 31 with a remote control actuator 32. Some selection of solids by size is done by eliminating oversize pieces by rejection teeth 27 and eliminating some fines outwardly through side screens 29 assisted by the downward pressure from a compaction plate 28. Two of the dradgers may be mounted top to top.
Patent GB-1174310-A (GB)
Title: Improvements in or relating to Container-Forming Apparatus.
Inventor: LANGEWIS CORNELIS
IPC: B21D45/06
Filed: 1967-11-08
Abstract: 1,174,310. Capping. KAISER ALUMINUM & CHEMICAL CORP. 8 Nov., 1967, No. 50784/67. Heading B3Q. Apparatus for forming container bodies W<SP>1</SP> comprises die means 92, 96, 98, sealably locked by a keeper 78 within a housing 10, a hollow ram 12 for advancing a workpiece W through the die means to form the body W<SP>1</SP>, a stripper 90 on the housing, and an air vent passage 152 in the keeper for connecting the ram-interior to atmosphere during at least a portion of the time required to strip a body from the ram, the vent being open to atmosphere at all times. A reverse-draw die 98, two ironing dies 92, 96 spaced by a block 94, and a stripper 90 are clamped by a collar 100 in the keeper 78, which is longitudinally split and provided with screws, Figs. 9 and 10 (not shown), for adjusting its bore diameter. The keeper is secured by a holder 72 and a clamping ring 110 in an extension 22 of the punch-housing 10. Radial passages 156 in the inside end of the stripper are aligned with similar bores 158 in the keeper 78 to vent the space between the stripper and ironing die 92. A radial passage 152 in the spacer 94 and keeper 78 intersect an axial passage in the keeper to vent the space between the ironing dies. Vent holes 56, 58 are formed in the end-sleeve 30 and hollow core 38 of the ram 12.  Blanks transferring.-The blanks W are transferred from a magazine 178 to locating arms 185 by a slide 174 operated by a cam and having a resilient feed finger 176. A guide 200 locates the cup-shaped blanks over the end of the reverse-draw die 98. Cooling.-Coolant is supplied through a conduit to an annular chamber 84 connected to a chamber 120. Passages 127 lead to annular recesses 122, 124 and, through further passages  130, to an annular recess 128. Chordal grooves 136, 138 extend inwardly from the recesses 122, 128 to supply coolant to the die opening from which excess coolant collects in an opening 140 to escape through passages 144. Specifications 953,643 and 1,074,364 are referred to.
Patent GB-1247673-A (GB)
Title: Improvements in insulating materials
Inventor: MACWILLIAMS JOSEPH ANTHONY
IPC: C04B30/00
Filed: 1967-11-11
Abstract: 1,247,673. Thermal insulating materials. MICROPORE INSULATION Ltd. 11 Feb., 1969 [11 Nov., 1967], No. 51412/67. Heading ClJ. [Also in Divisions F2 and F4] A microporous thermal insulating material contains a major proportion by weight of a silica aerogel and, as an opacifier, phase stabilized black ferrosoferric oxide. The ferrosoferric oxide is suitably used in an amount between 1/6 and 1/3 of the weight of the aerogel and can be made by heating it to 700-800‹ C. with 1-4 wt. per cent of a sodium or potassium salt, e.g. sodium bicarbonate. The insulating material can be used to fill bags of fibre-glass cloth to form heat insulating blankets (as are claimed in Specification 1,247,674) for electrical thermal storage heaters.
Patent GB-1491445-A (GB)
Title: Catalyst bodies and methods of manufacturing such bodies
IPC: B21D51/12
Filed: 1973-11-08
Abstract: 1491445 Catalytic element for I.C. exhaust conversion UNITED KINGDOM ATOMIC ENERGY AUTHORITY 25 Oct 1974 [8 Nov 1973] 51977/73 Heading B1F [Also in Division B3] A catalyst body having channels extending therethrough comprises a single corrugated strip of an oxidised aluminium bearing ferritic steel coated with a catalyst which is folded about one or more axes lying at an angle to the crests 3 of the corrugations to form layers, the corrugation crests 3 of each of which are at an angle Ï to those of an adjacent layer or layers. In one embodiment a strip 1 is formed by rolls 2 with corrugations inclined at an angle Ï to the length of the strip. The corrugated strip is folded in a zig-zag manner or, as shown, about a transverse region 7. which is flattened to facilitate folding, to form two layers the crests 3 of the corrugations of which lie at an angle Ï to each other. The double layer formed may be folded in a zig-zag manner or wound into a coil (Fig. 5, not shown). The corrugated strip may alternatively be folded about one or more axes extending along its length, the region to be folded (19) (Fig. 6, not shown) being left uncorrugated and provided with a line of weakness such as holes (20). The strip may be perforated and may be coated with platinum, palladium, irridium or rhodium metal or alloy catalyst. The body is used for purifying exhaust gases of an internal combustion engine.
Patent GB-1127239-A (GB)
Title: Apparatus for recording and reproducing sounds on magnetic sheets
IPC: G11B5/52
Filed: 1965-12-08
Abstract: 1,127,239. Sheet recorder; driving magnetic recording heads. TDK ELECTRONICS CO. Ltd. 8 Dec., 1965 [2 Aug., 1965 (2); 6 Aug., 1965], No. 52061/65. Heading G5R. As rim-driven turn-table 1, below a magnetic sheet (not shown), is rotated, the head 13 is driven radially inwards through the gears 5, 6 engaging a rack 4, the centre pinion 8 being held stationary by projection 10 engaging a stopping rod 11, so that the head traces a spiral path. When the head 13 approaches the centre, a projection 12 passes through slot 15 and eventually contacts kick plate 34 causing low friction pad 49 to enter hole 19 to stop the turn-table, strip 33 operating switch 38 to stop the motor. When arm 4 has been returned to its initial position, operation of starting arm 25 releases pad 49 and causes switches 32 to close. The turntable may be stopped manually by operation of arm 36. The centre pinion is released by operation of arm 21, spring 14 returning the rack to its initial position. The tongue 38 causes the plates 39 to move inwardly, thereby operating the indicator 42.
Patent GB-1161825-A (GB)
Title: Improvements in Braking Pressure Limiting Devices for Automotive or other Vehicles.
IPC: B60T8/18
Filed: 1966-11-21
Abstract: 1,161,825. Vehicle suspensions. SOC. ANON. ANDRE CITROEN. 21 Nov., 1966 [26 Nov., 1965], No. 52090/66. Heading B7D. [Also in Division F2] In a braking pressure limiting device (Division F2) for vehicles equipped with an hydropneumatic suspension system and with a brake system actuated by means of a fluid supplied from a pressure control member in the form of a pedal-actuated master cylinder 20, the pressure limiting device comprises a spring-influenced cylindrical slide valve 9 movable in a valve body 1 and adapted to cut off or restore the delivery of the actuating fluid to the brake cylinders 21, 21a via passages 15, 24 and 15a, the slide valve 9 being subjected to the pressure in the suspension system via lines 19, 19a. In the brake release position the slide valve 9 is in its lowermost position as the spring 13 is not capable of balancing the force of the suspension fluid pressure in chamber 3. When the brakes are applied, pressure is delivered from the master cylinder 20 to the chamber 4 and the brake cylinders 21 and 21a and when the fluid pressure in the chamber 4 reaches a predetermined value the slide valve 9 moves upwardly to close the port of the passageway 15 and hold the brake fluid pressure at this predetermined value. Upon release of the brake pedal operated master cylinder 20, a one-way valve 25 permits return of any fluid contained in the chamber 4 to the master cylinder 20 and the cylindrical slide valve is allowed to resume its lowermost position under the influence of the pressure in the suspension system.
Patent GB-1528000-A (GB)
Title: Constant voltage generating circuit
IPC: G05F1/10
Filed: 1975-12-22
Abstract: 1528000 Automatic control of voltage  NIPPON KOGAKU KK 22 Dec 1975 [26 Dec 1974] 52381/75 Heading G3R A constant voltage generating circuit includes an operational amplifier with feedback from a circuit, connected to the amplifier output, which provides the constant voltage. The feedback to one amplifier input is via an element (eg diode or transistor) the voltage across which is logarithmically proportional to the current through it, the other amplifier input being connected to a voltage supply through a similar element. As shown, the inputs of operational amplifier A are connected, through resistors R 2  R 3  to one input 1a of an unstabilized voltage source E, the non-inverting input via diode D2 to a voltage divider R 4 , R 5  across the amplifier output, and the inverting amplifier input to the other source terminal 1b via diode D 1 . The output voltage Vo, as derived in the description, depends only on R2, R 3 , R 4 , R 5  and absolute temperature. The output may be used to supply an automatic exposure control in a camera, or as a temperature compensation circuit for semi-conductors. In other embodiments, Figs. 2 and 3 (not shown), the output voltage, or a constant current, is obtained from an emitter follower circuit, connected to the amplifier output and including a transistor (eg an FET). The feedback circuit, from the transistor collector, is then via a diode or a further transistor.
Patent GB-1411016-A (GB)
Title: Radio receiver protection arrangements
IPC: H01Q1/50
Filed: 1973-11-12
Abstract: 1411016 RF overload protection MARCONI CO Ltd 12 Nov 1973 [24 Nov 1972] 52401/73 Heading H2K [Also in Division H3] A radio receiver RF overload protection arrangement comprises a circuit for detecting a voltage in the aerial lead of the receiver and for providing a unidirectional voltage whose magnitude is dependent on the magnitude of this voltage comprising diodes D1, D2, capacitors C1, C2 and resistor R1, a circuit for detecting a current in the aerial lead of the receiver and for providing a unidirectional voltage whose magnitude is dependent on the magnitude of this current comprising current transformer T1, diode D3, capacitor C2 and resistor R2, means for aggregating these two unidirectional voltages and a trigger circuit Tr responsive to a predetermined aggregate level to fire a triac Q1 to short circuit the aerial lead under overload conditions. The capacitor C2, common to both circuits, serves as the aggregating means. The protection circuit operating power is derived from the overload signal itself. Details of the trigger circuit are given, Fig. 2, not shown. Additional circuitry, Fig. 3, not shown, comprising a biased Zener diode (DP) may be provided in the input stage of the receiver to respond to any signal in excess of a predetermined amplitude to limit the signal peaks and cause a low impedance to be reflected across the output of the protection arrangement to make it operate more rapidly.
Patent GB-526023-A (GB)
Abstract: 526,023. Totalisators. TELYU ELECTRIC TOTALISATORS, Ltd. March 6, 1939, Nos. 7322 and 7323. Convention dates, March 7, 1938, Nov. 9, 1938. [Class 40 (i)] The bets of various values on one horse are collected by a distributer and in the case of the higher values are transmitted directly to the counter. The impulses of lower value are however passed to a stepping mechanism which retransmits one impulse for every ten received. The outer rings of studs 18B, 18C, on the distributer 17 are wired to ú1 and 10/- keys 1, 2 while the innermost ring is wired to the ú5 keys such as 3. The arm 19 carries a contact 27 to bridge the latter studs 45 with a slip ring 20 so that for a ú5 bet circuit may be completed through the issuing clutch relay 16B direct to the counter 4. In the case of a 10/- bet, passage of the arm over the corresponding stud 18B energizes a magnet 25 to allow a ratchet-wheel 32 to make one step. On the other hand depression of the ú1 key effects through maget 5 closure of contacts 9, 13 which are then held for a cycle by a cam 11. The clutch magnet 16 is thus energized and potential issuing is placed on two studs so that during the cycle two impulses are passed by the distributer to the wheel 32. When the latter has made ten steps, circuit to the counter 4 is completed by closure of the pair of contacts 36. At the close of betting the number of 10/- bets remaining on the wheel 32 may be read off from a numbered drum secured to it.
Patent GB-1036950-A (GB)
Title: Improvements in end fittings for conduits or hoses
Inventor: WILSON JOHN WILLIAM
IPC: F16L33/22
Filed: 1964-12-29
Abstract: 1,036,950. Hose end-fittings. SUPERFLEXIT Ltd. July 15, 1965 [Dec. 29, 1964], No. 52660/64. Heading F2G. An end-fitting for a flexible thin wall conduit or hose 1, preferably of polytetrafluoroethylene, comprises a nipple 3 and a ferrule 4 having cylindrical parts 5 and 6 for entering and surrounding the conduit respectively and frusto-conical parts 8 and 9 for gripping the belled end of the conduit when an associated ring nut 11 of the fitting is tightened. The cylindrical part of the nipple is provided with annular saw-tooth projections 7 which grip the inner surface of the conduit. The ring nut has a shoulder 9 which engages a radial ferrule flange 12. In the embodiment illustrated at the left-hand side of Fig. 1, said nut engages an external thread on the nipple, and, in the embodiment at the righthand side, the nut is intended to engage another component such as an electrical connector when the conduit is arranged to carry bunched electrical conductors 2. A tool used in assembling the fitting, Fig. 2 (not shown), comprises a cylindrical end part 16 for supporting the nipple and conduit, a knurled centre part 13 to facilitate handling, a tapered end part 14 for belling the hose end, and a further tapered part intermediate the knurled and cylindrical parts for increasing the said belling.
Patent GB-1138527-A (GB)
Title: Improvements in or relating to the production of sealed filled envelopes
Inventor: SAMWAYS BRUCE
IPC: B65B9/213
Filed: 1965-12-11
Abstract: 1,138,527. Packaging in flexible tubes. COLODENSE Ltd. 5 Dec., 1966 [11 Dec., 1965], No. 52727/65. Heading B8C. [Also in Division F2] The guide 3 (Fig. 1) about which a web 16 is tubed with its edges overlapping, can be turned about a vertical axis to alter the position of the overlap in relation to the plane in which the tube is subsequently flattened by welding heads 14. A structure 5 rotating with the forming guide 3 about a bearing 6 also carries the web supply 17 and a glue-strip applicator 8, which may, however, be omitted where the longitudinal seal is to be made by a heat-sealing head 13. In the machine illustrated the tube is drawn downwardly by the welding heads 14 and is fed with sweets 26 through a feed tube 1. The sachets 27 may be closed by rupturable seals as in Specification 956,506, and a strip of tacky adhesive may be provided for resealing them.
Patent GB-1166099-A (GB)
Title: Method and device for Driving and Braking Recording Tape
Inventor: JURA STANISLAV
IPC: G11B15/38
Filed: 1966-11-28
Abstract: 1,166,099. Feeding webs. VYZKUMNY USTAV MATEMATICKYCH STROJU. 28 Nov., 1966 [7 Dec., 1965], No. 53157/66. Heading B8R. [Also in Division G5] Tape 1 such as recording tape is driven or braked by a pneumatically controlled nozzle through which the tape passes. The pressure medium is supplied to the nozzle by a tube 2 and is forced through channels 4, 5, past bent ribs 6 and into narrowing channels 7, 8 to strike the tape at an oblique angle to the direction of tape travel. Electro-magnetically or magnetoelectrically controlled pressure valves may control the flow of the pressure medium into the tube 2 to control the speed of tape travel. Alternatively the tape can be controlled by deflecting the medium flow into another direction by means of pneumatic logic members.
Patent GB-1165399-A (GB)
Title: Process for Thermal Hydrodealkylation of an Alkyl Benzene
IPC: C10G47/22
Filed: 1967-11-22
Abstract: 1,165,399. Benzene. GULF RESEARCH & DEVELOPMENT CO. Ltd. 22 Nov., 1967 [22 Nov., 1966], No. 53252/67. Heading C5E. An alkylbenzene feedstock, particularly toluene, is hydrodealkylated at 538-982‹ C. in a primary reaction zone; an effluent comprising hydrogen, unreacted alkylbenzene, benzene and polyphenyls is recovered and separated, e.g. by fractionation; the polyphonyls are hydrocracked at 482-816‹ C. in an auxiliary reaction zone optionally containing a catalyst, e.g. natural clay, alumina, silica/alumina or sulphided nickel; and benzene is recovered from the effluent from both zones. The process is operated continuously, and the two effluents may be combined before the separation stage. Before the separation the combined effluents may be selectively hydrogenated to remove unsaturated aliphatic contaminants. The primary reaction zone may comprise two vessels, the effluent from the first being cooled before entering the second. Suitable operating conditions are given, and a detailed flow-sheet shows inter alia recycling, quenching and heatexchange arrangements.
Patent GB-1287791-A (GB)
Title: A microcircuit and manufacture of same
Inventor: FORLANI FRANCO
IPC: H05K3/46
Filed: 1969-10-31
Abstract: 1287791 Circuit assemblies HONEYWELL INFORMATION SYSTEMS ITALIA SpA 31 Oct 1969 53604/69 Heading H1R A microcircuit comprises an insulating substrate 1 supporting conductors such as 2 each comprising a first thin layer 2a, a second thin layer 2b and an electrolytically deposited layer 2c, the conductors being separated from further conductors such as 4 crossing them by insulating layers 5. To construct the circuit, the substrate is covered with a vacuum deposited layer of nickel-chromium alloy, then a vacuum deposited gold layer followed by a layer of photo-sensitive resist material. A conductor pattern is defined on the resist layer using a mask and is exposed by solution of the resist layer covering it. After the electrolytic deposition of gold to form the third layer, the remaining photo-resist layer is removed and the underlying thin metal layers etched away. Alternatively it is the resist layer covering the unwanted part of the conductor layer which is first removed, followed by the unwanted conductive layer. Electrodeposition of gold follows removal of resist from the pattern. Then the insulating layer 5 is applied by silk-screening ceramic material and, as shown, the cross-over conductor 4 is formed in the same way as conductor 2. Alternatively it may be screen printed.
Patent GB-1359180-A (GB)
Title: Pressure gauges
IPC: G01L19/00
Filed: 1971-11-18
Abstract: 1359180 Pressure gauges; expressing measurement U WIEGAND [trading as ALEXANDER WEIGAND ARMATUREN-UND MANOMETER-FABRIK] 18 Nov 1971 [17 April 1971] 53674/71 Headings G1J and G1L In a Bourden gauge the front transparent cover 12, casing 1 and rear wall 13 are held in longitudinal butting relationship by a retaining ring 14 having lugs 16 bent over the rear wall 13 provided with fracture points 17. In an alternative embodiment, Fig. 4, (not shown), the lugs are replaced by rear wall retaining beads.
Patent GB-1100200-A (GB)
Title: Welding products
IPC: C22C32/00
Filed: 1965-12-17
Abstract: An alloy comprises .Cr.22-35% .C.3.5-6% .B.0.5-2.0% .Si.0-6% .Mn.0-4% .Ni.0-8% the balance being iron  A powder of the alloy may be made by atomizing a homogeneous melt and the powder so obtained applied as a hard-surfacing alloy by flame spraying on to ferrous surfaces. Alternatively a powder mixture of the elemental materials may be used.