baber/WOPTO huggingface dataset:
Patent GB-1494217-A (GB)
Title: Combined refrigerator and freezer
IPC: F25D29/00
Filed: 1974-12-16
Abstract: 1494217 Freezers THOMSON-BRANDT 16 Dec 1974 [18 Dec 1973] 54305/74 Heading F4H In a combined refrigerator and freezer having a cooling circuit containing two evaporators which are fed by a thermostatically controlled compressor unit, and having two compartments, one of which freezes products and preserves products already frozen at a temperature of -18 C., whilst the other compartment keeps fresh food at a temperature of between 0 C. and 5 C., the fresh food compartment contains an electrical resistance heater 9 and the control thermostat 2. The resistance heater 9 is fed via a current regulating device so that the resistance heater 9 operates whilst the compressor is stopped, on the one hand at a fraction of its power while the low temperature compartment is operating to preserve already frozen products, and' on the other hand at full power while the said low temperature compartment is operating to freeze products. The thermostat 2 is connected to the motor 1 of a compressor unit in an electrical control circuit in which the resistance heater 9 is fed via a diode 10 and is in parallel with a manually operable switch 7. In operation, when the low temperature compartment is operating to preserve already frozen goods, switch 7 is open (as shown). As soon as thermostat 2 opens to stop the motor 1, the voltage is applied to the heater 9 and diode 10, diode 10 allowing only one half-cycle of the A.C. current to pass through the resistor 9. When the low temperature compartment is actively to freeze, switch 7 is manually closed, short-circuiting diode 10. When thermostat 2 is now opened, resistance heater 9 operates at full power.
Patent GB-1506370-A (GB)
Title: Loading stirrup for an underwater weapon
IPC: F41B7/04
Filed: 1976-12-30
Abstract: 1506370 Spring guns J F CHAZOTTES 30 Dec 1976 [6 Jan 1976] 54386/76 Heading A6S [Also in Division F3] A spring gun, somewhat like a cross-bow, but for underwater use, has a stirrup consisting of two rods 1, 2 of generally V-shape with with a tip 3 to engage the nock of an arrow, the two rods being joined, e.g. welded, together so that one braces the other. Each end 10, &c. of the rods is connected to a resilient strip 9. The tip 3 is offset from the plane of the rod 1. The rods 1, 2 may be joined one on top of the other, or one inside the other, &c., and may be of the same or different diameters, and may be made of stainless steel. The two rods may be joined at their ends by a transverse bar to make an A-shape.
Patent GB-1255177-A (GB)
Title: The use of polyhaloethers as flame retardants in polymer compositions
IPC: C07C43/12
Filed: 1968-11-15
Abstract: 1,255,177. Polyhaloethers. CITIES SERVICE CO. 15 Nov., 1968 [29 Dec., 1967], No. 54433/68. Heading C2C. [Also in Division C3] Compounds of the general formula X a R(OR<SP>1</SP>)b wherein X is halogen, R is a saturated aliphatic or cycloaliphatic hydrocarbon group derived from a C 4-20  aliphatic or cycloaliphatic hydrocarbon containing 2-4 double bonds, R<SP>1</SP> is a C 1-8  alkyl or cycloalkyl group, a is an integer of 2-7, b is an integer of 1-4, the ratio a : b is at least 1 : 1, and the sum a+b is 4, 6 or 8, the halogen and other groups being attached to those carbon atoms formerly linked by double bonds, no carbon atom bearing more than one hetero substituent, are prepared by gradually adding a substantially dry solution of halogen in R<SP>1</SP>OH to the unsaturated hydrocarbon, separating insoluble reaction products from the mixture, adding sufficient water at the reaction mixture to separate the product as an insoluble lower liquid phase, and recovering the product. The compounds are employed as external plasticizers and flame retardants in organic polymers.
Patent GB-1201060-A (GB)
Title: A system and method for producing polypropylene
Inventor: STATON J C
IPC: B29C48/92
Filed: 1967-12-01
Abstract: 1,201,060. Extruding polypropylene strands. ESSO RESEARCH & ENG. CO. 1 Dec., 1967 [19 Dec., 1966], No. 54884/67. Heading B5A. [Also in Division C3] Polypropylene is heated to a temperature exceeding 550 F. in the presence of a gas containing at least 7 mole per cent of oxygen and extruded, a portion of the extrudate being sampled to measure a parameter of the molecular weight of the polypropylene and the conditions of extrusion being controlled in response to said measured parameter whereby polypropylene of desired molecular weight is obtained in a reproducible and predictable manner. The parameter measured may be the shear stress or swell, and the controlled conditions may be temperature, extrusion speed and back pressure. Polypropylene may be introduced and mixed with gas from line 29 in hopper 28 and mixing zone 31, the polymer being extruded as strands through die 36, cooled in bath 37, pelletized in 22 and the viscosity of a sample measured in rheometer 23, the temperature of heaters 30 being controlled in accordance with the measured viscosity. The extruder has a cooling chamber 33, back-pressure control valve 35 and impurities are removed at screen pack 34.
Patent GB-1255364-A (GB)
Title: Improvements in or relating to traffic control systems
Inventor: WISEMAN DENNIS RAYMOND
IPC: E01F11/00
Filed: 1969-11-11
Abstract: 1,255,364. Road traffic detectors. D-SIGNS Ltd. 10 Nov., 1970 [11 Nov., 1969], No. 55053/69. Heading G4Q. [Also in Division H1] A temporary traffic control system comprises a conductive loop embedded in a non-conductive material, secured to a road surface and electrically connected to automatic switching means for traffic signals. The loop may consist of one or more turns of stranded copper wire embedded in a rubber mat which is nailed to the road surface; alternatively, braided wire is embedded in a strip of rubber or synthetic resin which is fixed in the form of a loop on the road surface by means of an adhesive. When a vehicle is present in the inductive field of the loop, there is a change in the operating conditions of a high frequency oscillator to which the loop is connected.
Patent GB-1488273-A (GB)
Title: Cartridge for a recording medium in tape or strip form and tape-handling apparatus for use with such a cartridge
IPC: G11B15/66
Filed: 1974-12-20
Abstract: 1488273 Cartridge recorder BASF AG 20 Dec 1974 [22 Dec 1973] 55092/74 Heading G5R [Also in Division B8] A cartridge comprises a housing, a roll of tape 18 mounted on a hub 15 within the housing, the housing consisting of two parts which are pivotally connected together about a pivot 8 by a hinge 26 whereby when the two parts interengage to close the cassette the tape roll 18 is enclosed within the cassette and when the cassette is inserted in a trough 3 of a receiving means of a tape handling apparatus and the lid 1 of the means is closed to separate portions 3a and 3b of the trough 3 away from one another by pivoting them about a pivot 4 by means of pivotally mounted bars 5 the two parts of the cassette, which are engaged by shoulders 11 of the receiving means, are simultaneously swung apart to expose the roll of tape 18 which is then moved towards a capstan 39 of the apparatus by means of a movable shaft 40 upon which can be mounted the hub 15 to enable a peripheral surface of the roll of tape 18 to contact the capstan 39. The tape handling apparatus comprises at least one scanning means for scanning the tape. The shoulders 11 enter apertures on the cartridge to make the cartridge ready to be opened. Spring 27 having ends engaging recesses (28) of the cartridge, Fig. 3 (not shown), and edges 31 of a spring 29 engaging projections 30 in the cartridge maintain the cartridge closed. The projections 30 have steep sides enabling the edges 31 to contact different parts of these steep sides depending on the distance between the two edges 31 of the opening 32 of the spring 29 and on the distance between the two projections 30 when the cartridge is in the closed position. In order to hold the roll of tape 18 together springs 36 are provided and depending upon the diameter of the roll the springs 36 are accommodated between projections 37 which have distances from the roll centre conforming to such a radius of the tape roll. The roll is also provided with a toothed leader tape (20), Fig. 7 (not shown). The springs 36 hold the tape roll to allow the shaft 40 to enter the aperture of the hub 15 when the two parts of the cassette housing have been swung apart. The shaft 40 can enter the aperture through an aperture in the cartridge housing.
Patent GB-1411900-A (GB)
Title: Antilock control system
IPC: B60T8/92
Filed: 1973-11-29
Abstract: 1411900 Aritiskid braking systems TELDIX GmbH 29 Nov 1973 [29 Nov 1972 20 March 1973] 55433/73 Heading F2F An antiskid system controlling the braking pressure at the wheels of a vehicle is controlled by initiating a check operation for the system with at least one vehicle wheel braking system disconnected from the antiskid control, determining with the aid of this disconnected wheel whether controlled braking or uncontrolled braking is most efficient and rendering the antiskid system non-operative at least in part for a predetermined period if normal braking is found to be the more efficient. Four wheel sensors 1 . . . 4 are connected to an evaluation circuit 5 connected to valves 6 . . . 9 controlling brake pressure. The lines leading to valves 6, 7 of the two non-driven wheels are connected by means of OR-gates 10, 11 to time elements 13, 14 extending the incoming signals and lines leading to valves 8, 9 of the rear wheels are connected via an OR-gate 12 to a time element 15. If within the period of the time elements (say 150 m. see.).the front wheel valves and at least one rear valve are energized, i.e. the controller has responded, an AND-gate 16 emits a signal which initiates a check operation. This signal passes through a time delay element 17 to AND-gate 18 and when the brake is actuated passes further through OR-gate 20 and a time element 21 extending the signal. The element 17 ensures that the controller has operated for 200 m. sec. before the signal at the output of element 21 blocks gates 24, 25 by way of OR-gate 22 and AND-gate 23, the gates 24, 25 being connected to the control line for valve relay 26 or pump relay 27, these relays being energized for example on actuating the ignition lock. Relay 26 then connects valves 6 . . . 9 to earth. Energization of each valve is thus eliminated for at least 50 m. sec. with the blocking of gates 24, 25. A deceleration sensor 30 supplies a signal to a store 31 and comparators 32, 33 store 31 being fixed on actuation of the brake so that from this point in time it stores the vehicle deceleration instantaneously present. If the deceleration increases further so that the instantaneous value exceeds the stored value by an amount predetermined by comparator 32 the output signal of the latter fixes the store 31 at the new value. If, in subsequent phases without control, deceleration further increases gate 37 is opened by the output pulse of element 21 and the control remains switched off and store 31 is reset. With the occurrence of the output signal of element 21, if a better brake action is achieved by the control, initiation of a further check operation is prevented by means of the AND- gate 39 and time element 40 (with signal extension of, e.g. 3 sec.) so that this time does not start if the controller switches off, the element 40 being cleared on response of time element 38.
Patent GB-1155110-A (GB)
Title: Improvements to access circuits for ferrite core memory
IPC: G11C11/06
Filed: 1967-12-07
Abstract: 1,155,110. Circuits employing bi-stable magnetic elements; transistor switching circuits. INTERNATIONAL STANDARD ELECTRIC CORP. 7 Dec., 1967 [9 Dec., 1966], No. 55750/67. Headings H3B and H3T. A reading or writing half current pulse is passed through a row or a column wire x2, Fig. 2, of a magnetic storage matrix by closing the emitter-collector path of a pair of switching transistors tl1, tl4 or ti1, ti4 located one at each end of the wire, the switching transistors being responsive to the conduction of respective selection transistors Sl1, Sl4 or Sil, Si4 caused by a negative pulse at base terminals adl1 adl2, ad adi2, and each of the selection transistors being connected to a current generator GC2 or GC3 comprising a conductive transistor tc2, tc3 and a voltage-limiting diode di7, di9. The half current pulses for reading or writing (only the reading circuit being shown in detail in the upper half of Fig. 2) are supplied by a constant current generator GC1, the generator comprising a normally-low-conducting transistor tc1 with its collector and base biased at earth through resistor rs12 and diodes dill, di12 di13. A Zener diode dz fixes the base potential of tcl at a constant value when the transistor becomes fully conductive in consequence of the switching transistors completing the external circuit through x2. Decoupling diodes such as di8, di2, di5 and di10 each connected through a resistor to a reference potential are provided, the diodes decoupling unselected row or column wires from the wire selected by the associated switching transistors. The row and the column sets of wires are connected to respective access circuits by arranging the wires of a set at one end to be connected into first groups through decoupling diodes, and at the other end to be connected through decoupling diodes into second, different, groups, Fig. 1 (not shown). By completing a circuit at each end from the constant current source through a respective switching transistor to a selected first and a second group, a single matrix wire is energized by a read half current pulse. A similar transistor arrangement, but reversed in direction as shown in the lower part of Fig. 2 with respect to the matrix wires, applies a reversed write half current pulse.
Patent GB-1484735-A (GB)
Title: Vacuum loading or cleaning apparatus
IPC: B01D46/04
Filed: 1974-12-30
Abstract: 1484735 Vacuum cleaners SUPER PRODUCTS CORP 30 Dec 1974 [10 Jan 1974] 56023/74 Heading A4F [Also in Divisions B1 and El ] A fixed (as shown) or mobile vacuum cleaner for collecting liquids or solids comprises a settling chamber 65 and a filter assembly 10. When solids are to be collected the solids are sucked into chamber 65 through hose 73 which is connected to opening 74" (as shown) or 74'. The solids settle out and gas containing entrained solids is passed through passage 84, passage 93 being closed, a first inlet (not shown) of the assembly 10, passage 17, filter bags 120 and filter bags 140 to outlet 63 when liquids are being collected, the gas containing entrained liquid particles leaves chamber 65 through passage 93 which is closed by float valve 100 when the liquid being collected reaches a certain level, and is passed through a second inlet (not shown) of the assembly 10 and filter bags 140 to outlet 63 filter bags 120 being by-passed. The filter bags may be cleaned by backflushing. To remove collected liquid or solids from chamber 65 door 66 is opened and the chamber 65 is pivoted to an inclined position by extending piston 111 of cylinder 110.
Patent GB-1166877-A (GB)
Title: A Defoaming, Deaerating and Drainage Aid Composition and Process For The Preparation Thereof
IPC: B01D19/04
Filed: 1967-12-08
Abstract: 1,166,877. Defoaming composition. BUCKMAN LABORATORIES Inc. 8 Dec., 1967 [24 May, 1967], No. 56038/67. Heading B1X. A defoaming, deaeirating and drainage aid composition is formed by dispersing 3 to 35 parts by weight of a finely divided silica into a mixture consisting of 55 to 93 parts of an oil having a viscosity varying from 20 to 200 S.U.S. at 100F., and 4 to 20 parts of one or more alkoxysilicon chlorides having the formula C1 m  Si (OR) n  wherein m represents 1 or 2, n represents 2 or 3 and R is a straight or branched chain alkyl group containing from 2 to 22 carbon atoms, and then making the silica hydraphobic by heating the resulting mixture under reduced pressure until substantially all the hydrogen chloride is removed therefrom. An alkylene oxide may finally be added to react with any residual hydrogen chloride. The oil may be mineral seal oil, kerosene, halogenated hydrocarbons, diisooctyl azelate, hexa-2-ethyl butoxy di-siloxane, or polyalkylene glycols. The silica may be precipitated, fumed, arc, or aerogel silica and the compounds C1 m  Si(OR) n  may be bis-(decyloxy) silicon chloride or tris-(decyloxy) silicon chloride.
Patent GB-1326830-A (GB)
Title: Device for storing and dispensing a stack of articles
IPC: B65G1/07
Filed: 1971-12-06
Abstract: 1326830 Storing and dispensing articles ALGEMENE SCANDINAVISCHE IMPORT STAAL MAATSCHAPPIJ (A S I STAAL) NV 6 Dec 1971 [4 Dec 1970] 56483/71 Heading A4T A device having a tubular shape for storing and dispensing a stack of articles, e.g. plates, has a carrier 6 adapted to move up and down, and means for presenting an uppermost article at a predetermined level, and maintaining the uppermost article at this level when articles are removed, the device having at least two movable guide members 4, which may present adjustable guides into the tubular member for supporting articles of different cross-sections. Carrier 6 is integral with collar 8 and attached thereto by webs 7. Collar 8 is suspended by springs 26 (only three shown for clarity) from brace 23, the springs being removable to enable adjustment to be made for articles of different weight. The collar 8 is guided by rollers 29 in U-shaped members 1 supporting brace 23. The adjustable guides are pivotable about 13. Studs 19 are provided to afford guidance in placing plates in the device.
Patent GB-1249674-A (GB)
Title: Novel agricultural compositions and leaf-desiccating method
Inventor: RUTKOWSKI ALFRED JOHN
IPC: A01N37/02
Filed: 1968-11-28
Abstract: 1,249,674. Leaf-wilting and/or leaf desiccation. ESSO RESEARCH & ENG. CO. 28 Nov., 1968, No. 56578/68. Heading C1B. A method of wilting or desiccating the leaves of plants, to increase efficiency in harvesting the plants, comprises applying a composition containing (a) 65 to 90% of a C 5-15  unsubstituted, saturated, branched aliphatic carboxylic acid or anhydride (e.g. neo-decanoic acid), (b) 3 to 10% of an emulsifier (e.g. an octylphenolethoxylate), and the balance (c) a solvent being a heavy aromatic naphtha, kerosene, diesel oil, paraffinic spray oil, aromatic hydrocarbons, or mixtures thereof; the quantities of (a), (b) and (c) being employed in said ranges in amounts giving a leaf-wilting or chlorophyll-bleaching phytotoxicity rating of at least 6 (as determined by formulµ given in the Specification). Suitable compositions are claimed, and may contain as optional components co-solvents or water. Preferred solvents have aromatic contents up to 25% or from 65% to 100%.
Patent GB-1455274-A (GB)
Title: Inductor or transformer
IPC: H01F38/10
Filed: 1973-12-08
Abstract: 1455274 Transformers and inductors G BACHORZ [trading as HERMANN SCHWABE] 8 Dec 1973 56988/73 Heading HIT The winding projections 9 of a shell core transformer are insulated by moulded plastics casings 10, 11 slipped over the projections and fitting between the projections and the core. As claimed, a transformer used for gas discharge lamps comprises a core of an inner and outer member, each composed of a stack of laminations, making a shell core, a winding in the form of a coil disposed on the inner member, with its axis perpendicular to the inner member, projecting from opposite ends of the shell core, the winding being insulated all round within the shell and the coil projections being within individual insulating casings disposed externally of the shell core formed as an integral structure having a first wall 12 between a coil projection 9 and the inner member and a second wall 13 masking the coil projection. As described one casing 10 may be formed with a catch 23, slotted projections 19 and channels 220. The catch 23 engages a terminal block (24, Fig. 1, not shown) and the projections 19 receive the ends of the winding wires (22, Fig. 7, not shown) and terminals (21) secured by pinching. The core, casings and terminal block are engaged by corners 15 to a mounting strip (6, Fig. 1). The first wall 12 of the casings may be thicker than the second wall 13 and may have a recess 30 to secure an insert (not shown) with an air gap.
Patent GB-1408140-A (GB)
Title: Sampling device
IPC: A61B17/32
Filed: 1971-12-09
Abstract: 1408140 Brushes M M LEVENE 8 Dec 1972 [9 Dec 1971] 57304/71 Heading A4K [Also in Division A5] A brush which is used for obtaining cell and tissue samples has at least a conical portion 4 and bristles, e.g. spun cellulose diacetate fibres, which are soluble in a liquid, e.g. acetone, that does not cause morphological damage to the samples. A sample suitable for both cytological and histological examination is obtained by inserting the brush into a hollow viscus, e.g. the uterine cervix, and rotating the brush to obtain a sample and then, removing the brush and placing it in a fixative solution. Some of the cells are shed from the brush into the solution from which a cytological preparation may be made. The rest of the cells are removed from the brush by dissolving the bristles in the liquid that does not cause morphological damage to the cells.
Patent GB-1334888-A (GB)
Title: Vehicle chassis
IPC: B62D7/16
Filed: 1971-12-10
Abstract: 1334888 Vehicles VOLYO AB 10 Dec 1971 [17 Dec 1970] 57538/71 Headings B7D and B7H  A vehicle, e.g. a bus has the axle 1 for the steered wheels 6, 7 mounted on a sub-frame 8 which is mounted resiliently at 9a at the front and by means of two air springs 11, 12 and a Panhard rod 11a towards the rear, to the chassis 10. Steering.-In one embodiment (Fig. 1) the steering wheel 29 turns a shaft 27 via bevel gears 30, the motion being transmitted to a shaft 23 in a bearing 25 and thence to a worm 21 which turns a vertical shaft 19 to which two arms 17, 18 are fixed. The arms 17, 18 are connected to the hub arms 13, 14 by tie rods 15, 16. In another embodiment (Fig. 4) the steering wheel 29 turns a worm 37 which drives a drop arm 36 connected to a drag link 35 which rotates the shaft 19 by means of an arm 34.
Patent GB-1271226-A (GB)
Title: Reactive dyestuffs containing 3-azo-2-hydroxy-6-pyridone residues
Inventor: BERRIE ALISTAIR HOWARD
IPC: C09B62/085
Filed: 1968-09-24
Abstract: 1,271,226. Pyridone derivatives. IMPERIAL CHEMICAL INDUSTRIES Ltd. 22 Dec., 1969 [24 Sept., 1968 (2); 9 Dec., 1968], Nos. 45328/68, 58281/68 and 60322/69. Heading C2C. [Also in Divisions C4-C5] 1 - Ethyl - 3 - aminocarbonyl - 4 - methyl - 6- hydroxypyrid-2-one is prepared by hydrolysing the corresponding 3-cyano-compound with H 2 SO 4 ; the 1-methyl- or n-propyl- or -isopropyl- or -(2<SP>1</SP>-hydroxy-ethyl)- or -(2<SP>1</SP>-aminoethyl)- or -(2<SP>1</SP>- dimethylaminoethyl)- or -(3<SP>1</SP>-methoxypropyl)-3- aminocarbonyl 4 - methyl - 6 - hydroxypyrid - 2- ones are specified as being preparable by the same method. N - (2<SP>1</SP> - aminoethyl) - 3 - cyano - 4 - methyl - 6- hydroxypyrid-2-one is prepared by condensing ethylene diamine with a mixture of ethyl acetoacetate and ethyl cyanoacetate. 1 - (31 - Aminophenyl) - 3 - cyano - 4 - methyl- 6-hydroxypyrid-2-one is prepared by condensing ethyl cyanoacetate with 3-nitroacetoacetanilide to give 1-(3<SP>1</SP>-nitrophenyl)-3-cyano-4-methyl-6- hydroxypyrid-2-one, which is catalytically hydrogenated; 1-(4<SP>1</SP>-amino- or 3<SP>1</SP>-amino-4<SP>1</SP>-methylphenyl) - 3 - cyano - 4 - methyl - 6 - hydroxypyrid- 2-one is similarly prepared.
Patent GB-1445089-A (GB)
Title: Oin dispensers
IPC: G07D9/00
Filed: 1972-12-18
Abstract: 1445089 Stopping in definite positions COIN CONTROLS Ltd 7 Nov 1973 [18 Dec 1972] 58341/72 Heading F2E [Also in Division G4] In a motor-driven coin dispenser (see Division G4) the dispensing mechanism is stopped after a set coin count, when current to the motor M is switched off, by a lug 24 engaging a projection 23 on a nylon stop member 21 fast with the motor shaft 22. The tail 28 of a pivoted lever 25 carrying the lug 24 is attracted to the yoke 29 of the motor when current is supplied. When current is cut off, a return spring 30 rocks the lever 25 to bring lug 24 against one of the projections 23.