baber/WOPTO huggingface dataset:
Patent GB-1489184-A (GB)
Title: Gas-discharge display device driving circuits
IPC: G09G3/282
Filed: 1973-11-03
Abstract: 1489184 Matrix displays and circuits therefor FERRANTI Ltd 1 Nov 1974 [3 Nov 1973] 51132/73 Heading G5C In a display panel comprising a matrix of D.C. gas discharge lamps at the intersections of crossed conductor arrays 11, 12 a selected lamp is erased by applying an erase pulse -Vp to one conductor and a similar pulse to all the conductors of the other array except that connected to said lamp. This reduces the potential applied across the transistor switches. The lamps are energized, maintained and erased at potentials Vs, Vm and Vp. The supply circuit includes potential sources 15 ... 18 of Vp and Vm-Vp where Vs-Vm = 2Vp. In the display state only switches 23 are on and sources 16, 17 apply potential Vm across the panel. For selective erasure switches 20, 23 are turned off and switches 26 are turned on, sources 17, 18 then apply potential Vm across the panel. Switches 26 are sequentially pulsed off to reduce the potential across the row of lamps to Vm-Vp=Ve and compensating pulses are applied to non-selected lamps by pulsing on corresponding switches 28. To write, switches 20, 23 and selected switches 26, 28 are turned on. Potentials V, Vm+2Vp=Vs and Vw+Vp are then developed across non-selected, selected and half selected lamps. Symbols may be written by energizing all lamps and erasing selected ones. This may be done for each symbol or row of symbols sequentially. The potential sources may be provided by series connected Zener diodes. Switches 20, 23 may be mechanical.
Patent GB-1442286-A (GB)
Title: Frangible disc device
IPC: F16K17/16
Filed: 1974-11-27
Abstract: 1442286 Bursting discs EUROPEAN ATOMIC ENERGY COMMUNITY 27 Nov 1974 [28 Nov 1973] 51436/74 Heading FID A safety device for a pressure vessel comprises at least one recessed bursting disc 1, Fig. 1, and a bearing member 5 which covers the recessed portion of the disc and can be released to initiate rupturing of the disc independently of operating conditions. To initiate bursting of the disc a spring-loaded yoke 6, which holds the member 5 down, is released by withdrawing a wedge 11. A screw 8 allows for machining tolerances in the device. Two discs may be provided and each incorporates a wire causing a current which provides a signal when the disc bursts.
Patent GB-1362928-A (GB)
Title: Insecticidal esters of 1-acenaphthenol
IPC: C07C317/22
Filed: 1972-11-10
Abstract: 1362928 Esters of 1-acenaphthenol PROCTER & GAMBLE CO 10 Nov 1972 [12 Nov 1971] 52024/72 Heading C2C The invention comprises compounds having the general formula wherein R is  where n is 4, 5 or 6; and R<SP>1</SP> is wherein X 1  and X 2  are each hydrogen, halogen, nitro, thiomethyl, alkyl, alkoxy or sulphonylmethyl. They may be prepared by conventional esterification reactions. The compounds of the invention may be used as the active ingredient in insecticidal compositions.
Patent GB-1443476-A (GB)
Title: Central heating system
IPC: G05D23/24
Filed: 1973-11-09
Abstract: 1443476 Central heating systems AMICHAEL 22 Oct 1974 [9 Nov 1973] 52073/73 Heading F4 [Also in Division G3] A central heating system of the pumped hot water type uses the temperature of the return flow of water to the heater to switch the pump on and off. The temperature-sensitive element is a thermistor embodied in a suitable control circuit (see Division G3) which may incorporate a further thermistor arranged to compensate for external temperature variations
Patent GB-1142079-A (GB)
Title: Electronic switching circuit
Inventor: SHARP ALASTAIR MCPHERSON
IPC: H03K17/16
Filed: 1967-11-16
Abstract: 1,142,079. Transistor switching circuits. STANDARD TELEPHONES & CABLES Ltd. 16 Nov., 1967, No. 52145/67. Heading H3T. In a switching circuit comprising a T network of three transistors, which have their emitters joined together, the series arm transistors 7 and 8 are biased from the same biasing circuit so that when they are conducting the emitter electrodes are at zero potential relative to earth and the shunt arm transistor 9 is biased from a separate biasing circuit so that either the series arms or shunt arm are conducting. The switching circuit is arranged between a source of D.C., A.C. or composite signal 1 and a load circuit 2, such as resistor R. To switch on transistors 7 and 8, the terminals 14, 15 are connected to -V, +V which causes these transistors to be saturated. If the signal current exceeds the biasing current of these transistors one of them will come out of saturation and switch off. To disconnect the signal source 1 from the load 2 the voltage applied to the terminal 15 is removed and a +V voltage is applied to the terminal 18 so as to turn on transistor 9 in the shunt arm. A transistor network 21 is connected across the signal source so as to be correctly terminated. For an A.C. signal source two transistors 23, 24 are required, but for a unipolar source, only one of these would be required. The terminating network 21 is biased from the same circuit as that biasing the shunt transistor 9. In a change over or selector circuit (Fig. 2, not shown), two or more switching circuits may be connected to a common load 2 so as to selectively switch different inputs (1, 1<SP>1</SP>) to the load.
Patent GB-1057514-A (GB)
Title: Seat spring mat assemblies
IPC: B68G9/00
Filed: 1965-12-09
Abstract: 1,057,514. Spring upholstery. GENERAL MOTORS CORPORATION. Dec. 9, 1965 [Dec. 17, 1964], No. 52279/65. Heading A4M. A seat spring mat assembly is made by coating flat, zig-zag springs 24 with adhesive, applying the springs 24 to a fabric web 28, passing the web and springs through an oven 48 to set the adhesive and thereby bond the springs to the web, cutting the spring covered fabric to a desired length, and thereafter securing the cut length to a border frame 12. Individual springs 24 are automatically fed from magazines 32 to a conveyer comprising laterally spaced, endless chains 34 to be carried through adhesive applicator rollers 38 and wiping rollers 46 to be thereafter applied to a continuously advanced canvas web 28 guided to lie beneath the chain conveyer. After passing through the oven 48 the continuous strip is cut, at 52, to the desired length. The cut length is secured by metal clips 26 to a wire border frame 12 comprising U-shaped parts 14, 16 clipped together, as at 18. Additional wire supports 20 extend transversely of the springs 24 to underlie the latter and are secured to the frame 12 at their ends by clips 22.
Patent GB-1430819-A (GB)
Title: Feedback-connected control system for a diesel engine
IPC: F02D29/00
Filed: 1973-11-12
Abstract: 1430819 External load control VALMET OY 12 Nov 1973 [15 Nov 1972] 52352/73 Heading A1P [Also in Divisions FIB and G3P] A feed back connected control system for controlling the external load on a tractor or other diesel engine powered apparatus is characterized in that the signal a representing the level of overload of the engine F 1  is produced by sensing the force between the limiting means 1 of the engine's fuel injection pump feed rate control rod 3 and its stop 2. This signal may be produced by a strain gauge 4 or an electrical, pneumatic or hydraulic force or pressure transducer known per se.  The signal may be used to control the working depth of a plough or equivalent load G3 by mediation of a controller Gl such as a hydraulic valve and actuating means G2; and/or to effect a warning such as a light or buzzer.
Patent GB-1210724-A (GB)
Title: Method of producing dense fused refractories
IPC: C04B33/32
Filed: 1968-11-06
Abstract: 1,210,724. Dense fused refractories; fused alumina. ASAHI GLASS CO. Ltd. 6 Nov., 1968 [7 Nov., 1967], No. 52467/68. Headings C1A and C1J.  A dense fused refractory is obtained by melting at least one refractory material in a furnace, introducing dry nitrogen, argon or CO 2  into the material or furnace during or after melting and then solidifying. Preferably not more than 2% moisture is present in the gas, which can be introduced through hollow electrodes used for fusing the charge or through hollow cylinders. Refractories specified are ZrO 2 -Al 2 O 3 -SiO 2  ; CaO-MgO ; Al 2 O 3  ; MgO-Cr 2 O 3 -Al 2 O 3 - FeO; Al 2 O 3 -SiO 2  ; and MgO-Cr 2 O 3  mixtures.
Patent GB-1116948-A (GB)
Title: An improvement in or relating to pre-load indicating washers
IPC: F16B31/02
Filed: 1964-12-30
Abstract: 1,116,948. Washers. COOPER & TURNER Ltd., and R. F. TURNER. 11 Nov., 1965 [30 Dec., 1964], No. 52852/64. Heading F2H. A washer for indicating bolt-tension, comprises protuberances 12, and markings 24 to indicate their location. The markings may comprise semicircular or triangular recesses in the face of the washer, which may extend to its periphery, or a groove or ridge across the face of the washer. Reference has been directed by the Comptroller to Specification 1,006,452.
Patent GB-1493740-A (GB)
Title: Humidity sensitive elements
IPC: G01N27/12
Filed: 1975-12-24
Abstract: 1493740 Humidity sensitive element; oxide compositions MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 24 Dec 1975 [27 Dec 1974 20 Jan 1975 (3)] 52875/75 Heading ClA [Also in Divisions B2 and G1] A humidity sensitive element suitable for use in a humidity sensor, consists of 99À99 to 10 mole per cent of ferric oxide and 0À01 to 90 mole per cent of at least one alkali metal oxide, the ferric oxide and the alkali metal oxide(s) being in particulate form and being compacted and sintered together to form a coherent body.
Patent GB-1372890-A (GB)
Title: Flashlight construction
IPC: F21L4/00
Filed: 1971-11-16
Abstract: 1372890 Electric battery lamps P G GARRITY 16 Nov 1971 [16 Nov 1970] 53221/71 Heading F4R A flashlight comprises a housing 11, containing batteries 23 and a bulb 24 in an opening 17 at one end, a switch opening 16 and a slotted opening 14 formed spaced apart in the housing which are joined by a channelway formed by grooves 27, 28 on the exterior of the housing, and a conducting member 15 which is disposed in the channelway and which has at one end a bent spring contact 15A extending into the slotted opening 14 to bias the batteries towards the lamp and at the other end a switch arrangement 15B which is free to flow within the switch opening 16 into and out of contact with the bulb. As shown, the housing is in two halves 12, 13 which may be permanently or releasably secured together. Each housing half has a partition 18 formed with an arcuate cut-out opposite the switch opening 16 to provide a seat for the bulb 24 yet permit contact between the bulb contact 24B and switch 15B. The switch end 15B of conductor 15 is reversely bent to define a spring clip or holder 30 by which the pen light construction may be supported in a pocket. Hump 12G, 13G on the housing prevents accidental operation of the flashlight.
Patent GB-1299364-A (GB)
Title: Improvements in and relating to stern, side or bow doors of marine vessels
IPC: B63B19/08
Filed: 1968-11-12
Abstract: 1299364 Ships' ports CARGOSPEED EQUIPMENT Ltd and J G BROWN 10 Feb 1970 [12 Nov 1968] 53470/68 Heading B7S A bow, stern or side door for a ship comprises an outer panel 12 for closing the opening in the shell 11 and an inner panel 13 for closing a corresponding opening in a wall of a cofferdam extending inwardly from the shell, the panels being interconnected by toggle levers 24 operated by hydraulic rams 25 to move the panels apart to close the openings. To uncover the  openings, the panels are moved towards one another, panel 12 fitting inside panel 13, and then slid to the right on tracks by an hydraulic motor 33. In the closed position of the panels. toggle levers 24 move over-centre and engage stops to prevent collapse. Additional lever assemblies function with levers 24 to maintain the panels parallel. Seals in peripheral channels 15, 22 engage peripheral flanges of the openings when closed. Hydraulically-operated cleats 15a lock panel 12 in its closed position.
Patent GB-1399818-A (GB)
Title: Headlamp cleaning device
IPC: B60S1/60
Filed: 1971-11-19
Abstract: 1399818 Head-lamp wiper LUCAS ELECTRICAL CO Ltd 10 Oct 1972 [19 Nov 1971] 53792/71 Heading A4F A head-lamp cleaning device comprises spaced wipers 4,6 transversely mounted between parallel rods 8,10 reciprocated, e.g. via a cable 18, by drive means (not shown). Bearings 20,22,24, each comprising a spring-biased slide member, resiliently bias the wipers 4,6 against the twin head-lamps 12,14.
Patent GB-1130143-A (GB)
Title: Bearing plate arrangement in unbalanced rotary vibrators
IPC: F16C35/063
Filed: 1965-12-21
Abstract: 1,130,143. Bearings; vibratory mechanisms. LOSENHAUSENWERK DUSSELDORFER MASCHINENBAU A.G. 21 Dec., 1965 [1 Oct., 1965], No. 54091/65. Headings F2A and F2X. A bearing assembly in an unbalanced vibrator comprises a plate 2 with part of its periphery recessed to form an arcuate gap with housing 1, and a roller bearing 3 in the plate 2 supporting a shaft 4. The gap extends more than 180‹ around the plate. The plate is secured in housing 1 by screws 6 transverse to the plate axis. Unbalanced bodies 5, 5a mounted on the shaft move through oil sump 14 to convey oil to the bearings.
Patent GB-1292303-A (GB)
Title: Pinch cocks
Inventor: WEBB TERENCE WILFRED
IPC: F16K7/02
Filed: 1969-11-05
Abstract: 1292303 Valves ENGLISH CLAYS LOVERING POCHIN & CO Ltd 5 Nov 1969 54337/69 Heading F2V A pinch cock has a first member formed of side plates 3, 4 joined by pinch bars 5, 6, 7 covered with resilient sleeves 9, 10, 11 and a web 8 and a second member formed of side plates 18, 19 joined by pinch bars 20, 21, 22 which slide in elongated slots in the plates 3, 4. A bar 23 joining the plates 18, 19 and moving in slots in the plates 3, 4 is connected via links 31, 32, pin (29), links 27, 28, and shaft 25 to an operating handle 24 so that flow in flexible tubes between the respective bars may be controlled, flows in some tubes tending towards maximum while others simultaneously tend towards minimum. The handle may be actuated by a solenoid or fluid ram and the handle and linkage between the members may be replaced by a screw thread, rack-and-pinion or worm-andpinion. Links 27, 28 and links 31, 32 are arranged so that the bars are retained in their two extreme operative positions. In modifications, the bars may be arranged cylindrically or radially and the two members rotated for actuation.
Patent GB-1097898-A (GB)
Title: Improvements in or relating to methods of forming solder mounds on substrates
IPC: H01R12/55
Filed: 1966-12-06
Abstract: A solder, e.g. tin-lead, mound is formed on an integrated circuit member by placing a mask around a land which may be a Au, Cu, Cr laminate, vapour depositing the solder on the land, removing the mask, and then heating under a flux or in a reducing atmosphere to melt the solder and cause it to draw up into a mound, due to the surface tension effect.
Patent GB-1149220-A (GB)
Title: Earth moving equipment
Inventor: HAYNES FREDDIE JUNIOR
IPC: E02F3/40
Filed: 1966-12-06
Abstract: 1,149,220. Shovelling machines. F. J. HAYNES. 6 Dec., 1966 [20 Dec., 1965], No. 54568/66. Heading E1F. Detachably secured to the bottom 40 of an excavator bucket 34 is a casing 48 containing a motor 64 and a crank drive 70, 78 for reciprocating digger teeth 84 slidably mounted in a bearing block 52 at the front of the casing.
Patent GB-1358089-A (GB)
Title: Antireverse clutch safety device
IPC: B65G43/04
Filed: 1971-11-29
Abstract: 1358089 Torque sensing: movement indicator FORMSPRAG CO 29 Nov 1971 [9 Dec 1970] 55183/71 Headings G1K and G1W A shaft 16 driving a load through a device 15 intended to prevent reverse torque being applied to shaft 16, is provided with a device 10 arranged to produce a signal when the reverse torque produced in a stud 20 as a result of reverse movement of shaft 16 exceeds a predetermined value. The device 10 comprises a stud 29 coupled to the shaft 16 through a rubber block 25 and the stud 20, the stud 29 acting as an inner clutch race, an outer clutch race 36 journalled in an housing 32, and sprags 38 forming with the races an over-runing clutch. When the shaft 16 rotates in the normal direction, stud 29 rotates anti-clockwise Fig.3 freely relative to race 36. If shaft 16 rotates in the reverse direction under reverse torque, sprags 38 lock the races 29 and 36, and cam follower 45 is cammed upwardly by cam 44 to operate a switch 52 which operates a warning signal.
Patent GB-1413497-A (GB)
Title: Filter assembly
IPC: B01D35/027
Filed: 1972-11-30
Abstract: 1413497 Filters MARVEL ENG CO 30 Nov 1972 55322/72 Heading BID A suction filter assembly for reservoirs (one embodiment of which is shown) comprises an imperforate shroud 26 positioned around a filter element 14, the shroud 26 and filter element 14 being carried within housing 3 by removable cover 21. The cover 21 also carries a by-pass valve 30 which sits in the end of filter element 14 when liquid is being filtered. The filter element 14 is a snap fit on sleeve 18 and sealingly engages boss 13b of end portion 12. Boss 13b is covered with screen 46. The housing 3 comprises imperforate portion 7 and perforated cylinder 10. The portion 7 and cylinder 10 may be secured together by welding or by a ring (e.g. of spring steel) having projections which extend into aligned holes in overlapping portions of cylinder 10 and portion 7. In Fig. 4 (not shown) the portion 7 is longer than cylinder 10 and is modified to provide an annular chamber around cylinder 10. When the filter element 14 is mounted on the housing 3 air is purged from shroud 26 through spring loaded valve 42. In Fig. 8 (not shown) valve 42 is mounted in cover 21. The element 14 may comprise paper and/or metal mesh layers on perforated metal core 14a. In use the assembly is mounted by welding or bolting housing 3 to the top wall of the reservoir and fitting 4 is connected to a suction source. If the filter element becomes clogged by-pass valve 30 is opened, the opening of which is indicated by means 33.
Patent GB-1413766-A (GB)
Title: Hydraulic control apparatus
IPC: F15B11/08
Filed: 1973-11-30
Abstract: 1413766 Hydraulic control circuits ROBERT BOSCH GmbH 30 Nov 1973 [4 Dec 1972] 55739/73 Heading F1P An hydraulic control circuit, Fig. 1, comprises valves 16, 17 which control rams 13, 12 and influence a control line 32 and a changeover valve 35 which is spring-loaded to a first position in which it connects a line 37 to a reservoir 47 and closes a supply line 31 and has an alternative position in which it connects the supply line 31 to the line 37. The circuit controls the raising and tilting of the side loading wall of a lorry. To tilt the wall outwards valve 17 is moved to position 25. The pump 45 is inoperative so no fluid flows through the control line and valve 35 is therefore in the position shown. Thus, chamber 54 of ram 12 is connected to the reservoir through ducts 56, 39, 21 and the weight of the wall causes outward tilting, forcing fluid out of chamber 51 and drawing it into chamber 54. If this does not happen, due to the lorry standing on a slope, after a delay a cam 27 operates a switch 28 and starts a motor 26 which operates the pump 45. Fluid flows through the control line 32 and the pressure drop caused by a throttle 33 operates the changeover valve 35. This supplies pressure fluid to chamber 54 of ram 12 and tilts the side wall. A pressure limiting valve 29 determines the pressure available. To tilt the side wall inwards the valve 17 is moved to position 24. Cam 27 starts the pump 45 and pressure fluid is delivered to chamber 51 of ram 12 to tilt the side wall. In this position the control line 32 is interrupted so valve 35 is in the position shown and fluid from chamber 54 returns to the reservoir. The hoisting ram 13 is controlled by the valve 16 in a similar way. Lowering is almost always due to the weight of the load but the pump 45 may be switched on if required. Fig. 2 shows a modification in which a pressure limiting valve 63 determines the lower pressure required for tilting the side wall outwards and lowering the load than for hoisting and tilting the side wall inwards. Fig. 3, (not shown), illustrates a circuit in which the changeover valve has three positions instead of two and a cam for controlling the pump.
Patent GB-1155850-A (GB)
Title: Production Of Elastic Yarns And Fabrics
IPC: D03D15/56
Filed: 1966-12-14
Abstract: 1,155,850. Elastic yarn: stretch fabrics. CELANESE CORP. 14 Dec., 1966 [27 Dec., 1965], No. 55916/66. Headings D1F, D1S and D1W. Process for the production of an elastic yarn or fabric comprises wrapping or twisting an elastomeric strand with an undrawn strand of synthetic polymer filaments, optionally weaving or knitting a fabric with the composite yarn thus formed, stretching the yarn or the fabric in the direction or directions of the yarn sufficiently to cold (i.e. at a temperature below that at which the polymer softens) draw the filaments, allowing the yarn or fabric at least partially to relax so that the synthetic filament strand form loops about the elastomeric strand, and then heat-setting the synthetic filaments. The elastomeric strand may be of rubber or spandex, and the other strand of a polyester, a polyamide, or an acrylic polymer.
Patent GB-1494109-A (GB)
Title: Bleaching agents
IPC: D06L3/02
Filed: 1974-12-30
Abstract: 1494109 H 2 O 2  adducts with amines and amine oxides HOECHST AG 30 Dec 1974 [29 Dec 1973] 56054/74 Heading C2C [Also in Divisions A5 C5 and D1] Hydrogen peroxide and tetradecyl dimethyl amine oxide are reacted together to produce an addition product of the two starting materials. Addition products of hydrogen peroxide with dodecyl/tetradecyl dimethyl amine oxide and stearyl amine oxide decyl polyglycol ether (having a total of 10 EO groups) are similarly prepared. The products in admixture with a peroxide activator, are used in detergent bleaching compositions to bleach textiles and in compositions to bleach wax or disinfect fat, oil hydrocarbons, metal, hide, skin or hair.
Patent GB-1236293-A (GB)
Title: Arrangement for the section of columns of record cards
IPC: G06F9/00
Filed: 1969-11-17
Abstract: 1,236,293. Sorting machines. BULL GENERAL ELECTRIC (NEDERLAND) N.V. 17 Nov., 1969 [18 Nov., 1968], No. 56224/69. Heading G4M. [Also in Division H2] Selected column sensing devices 17 are coupled by connectors F to outputs S of a connection panel 100, and are connected in sequence to a sorting device DT by a selector switch KT which is stepped on one position after each pass of the cards, and a second selector switch KC which is coupled to switch KT simultaneously connects the sensing device 17 corresponding to the column which was used for sorting in the preceding pass to a device DC for checking that the cards are in the correct sequence as far as that column is concerned. The panel 100 may have indicator lamps which are lit when connectors F are taken out of their storage sockets, and which are extinguished in turn as the corresponding column sorts are completed. Switches KT, KC may be rotary switches or electronic switches and may be stepped by operation of a push-button PA or automatically on completion of each pass.
Patent GB-1412430-A (GB)
Title: Bridge construction panels
IPC: E01D15/133
Filed: 1972-12-07
Abstract: 1412430 Latticework bridges MABEY & JOHNSON Ltd 10 Jan 1974 [7 Dec 1972] 56553/72 Heading E1G In a latticework panel for a Bailey bridge whose bottom chord comprises a pair of spaced parallel channels 2, 2 connected by a pair of horizontal sway brace attachment plates 3, 4 adjacent the sway brace slot X, the lower plate 4 has an integral tongue 4a projecting into and welded to the forked inner end (Fig. 3, not shown) of a male eye lug 6 which is also welded to an upstanding forged plate welded to the vertical end channel 8 of the panel. The upstanding plate 7 is tapered and is cranked towards the web of the channel 8.